Hitachi Astemo, Ltd.

Japan

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New (last 4 weeks) 93
2024 July (MTD) 25
2024 June 68
2024 May 77
2024 April 47
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IPC Class
B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear 306
G08G 1/16 - Anti-collision systems 270
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating 202
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive 158
H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output 134
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NICE Class
12 - Land, air and water vehicles; parts of land vehicles 97
07 - Machines and machine tools 46
09 - Scientific and electric apparatus and instruments 45
11 - Environmental control apparatus 9
16 - Paper, cardboard and goods made from these materials 7
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Pending 688
Registered / In Force 5,056
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1.

DRIVING ASSISTANCE DEVICE

      
Application Number 18286652
Status Pending
Filing Date 2022-02-01
First Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ogata, Takehito
  • Kume, Hideyuki
  • Sakano, Morihiko
  • Komoriya, Yuichi
  • Toyoda, Hidehiro

Abstract

A memory stores an assistance pattern including a first periphery sensor map indicating a map in a periphery of a vehicle and an assistance content of driving assistance of the vehicle corresponding to the first periphery sensor map. A processor (sensor information acquisition unit 101) acquires sensor information indicating information on an object in the periphery of the vehicle sensed by a sensor. A processor (periphery sensor map acquisition unit 102) acquires a second periphery sensor map based on the sensor information. A processor (map similarity search unit 103, and assistance instruction unit 104) performs driving assistance of the assistance content corresponding to the first periphery sensor map when the second periphery sensor map is similar to the first periphery sensor map.

IPC Classes  ?

  • G08G 1/16 - Anti-collision systems
  • B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems
  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

2.

Electronic Control Device and Method for Controlling Electronic Control Device

      
Application Number 18557623
Status Pending
Filing Date 2022-03-04
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Arakawa, Kei

Abstract

A highly reliable electronic control device capable of preventing a reverse current at the time of GND disconnection in advance without requiring an additional circuit for reverse current detection is provided as an electronic control device in which a plurality of inductive loads are connected in parallel. There are provided a first high-side switch element that allows conduction between a battery power supply and a first external load; a first low-side switch element that allows conduction between a ground and the first external load; a second high-side switch element that allows conduction between the battery power supply and a second external load; and a second low-side switch element that is connected to the common ground with the first low-side switch element, and allows conduction between the ground and the second external load, synchronous rectification control for ON/OFF-controlling the first high-side switch element and the first low-side switch element is performed during a period in which a target current to the first external load is greater than a predetermined threshold value, and reflux control for ON/OFF-controlling the first high-side switch element while the first low-side switch element is turned off is performed during a period in which the target current to the first external load is equal to or less than the predetermined threshold value.

IPC Classes  ?

  • B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

3.

SUSPENSION CONTROL DEVICE AND SUSPENSION CONTROL METHOD

      
Application Number 18558283
Status Pending
Filing Date 2022-04-21
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Akai, Akihito
  • Hirao, Ryusuke

Abstract

A suspension control device that is connected to a sensor that acquires information regarding a vehicle or surrounding information of the vehicle, and calculates a suspension control value for controlling a suspension of the vehicle based on the information acquired by the sensor includes: a reached vibration generation unit that generates a reached vibration reaching the vehicle based on the information acquired by the sensor; a sampling processing unit that samples a vibration waveform of the reached vibration by changing a time width for sampling the vibration waveform of the reached vibration according to a frequency of the reached vibration generated by the reached vibration generation unit; and a control value calculation unit that calculates the suspension control value based on a sampling value of the vibration waveform sampled by the sampling processing unit.

IPC Classes  ?

  • B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
  • B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof

4.

Rotary Electric Machine and Electric Drive System

      
Application Number 18558086
Status Pending
Filing Date 2022-02-09
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Takahata, Ryouichi
  • Sawahata, Masanori
  • Yamazaki, Shinji
  • Nakayama, Kenichi

Abstract

An object of the present invention is to provide a rotary electric machine capable of reducing a difference between a height of a first segment conductor and a height of a second segment conductor. A first segment conductor 121 having a first slot pitch and a second segment conductor 122 having a second slot pitch smaller than the first slot pitch are provided, the second segment conductor 122 includes a first leg portion 122A and a second leg portion 122B, the first leg portion 122A includes a slot insertion portion 122A0 and a first linear portion 122A2 connected to the slot insertion portion 122A0 and constituting a coil end portion, the second leg portion 122B includes a slot insertion portion 122B0 and a second linear portion 122B2 connected to the slot insertion portion 122B0 and constituting a coil end portion, and the second linear portion 122B2 is longer than the first linear portion 122A2.

IPC Classes  ?

  • H02K 3/18 - Windings for salient poles
  • B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries

5.

Throttle Valve Control Device

      
Application Number 18557767
Status Pending
Filing Date 2022-02-02
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hatsuzawa, Hidefumi
  • Ota, Hiroyuki
  • Tanaka, Takuya
  • Kawano, Makoto
  • Akagi, Yoshihiko

Abstract

An object of the present application invention is to provide a throttle valve control device capable of effectively cooling a bearing of a throttle shaft while preventing an increase in size of a throttle body. Therefore, in a throttle valve control device in which flow paths 5T1 to 5T3 through which a heat exchange medium flows are formed in a throttle body 5, the diameter of a first bearing 8 of a throttle shaft 3 is greater than the diameter of a second bearing 9, the flow paths 5T1 to 5T3 are disposed along an outer periphery of an intake passage 1 to overlap with the second bearing 9 when viewed from a flow direction of the intake passage 1, and an inlet portion 5T1 and the outlet portion 5T3 of the flow paths 5T1 to 5T3 are disposed to sandwich the first bearing 8.

IPC Classes  ?

  • F02D 9/10 - Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
  • F02D 11/10 - Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type

6.

IMPELLER AND ELECTRIC WATER PUMP USING SAID IMPELLER

      
Application Number JP2023043105
Publication Number 2024/142759
Status In Force
Filing Date 2023-12-01
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kumar, Hari Lakshman
  • Sasaki, Keita

Abstract

An impeller 8 comprises: a base 40 including three first blade 44 on an upper surface of a base body 42; a shroud 41 including three second blade 52 on a lower surface of a flange 51; and weld protrusions 46, 55 that weld-fix the base and the shroud. Triangular first and second protrusions 45, 54 provided on the respective blades include flat outer surfaces and first and second inclined surfaces 45e, 54e. First and second fitting recesses 48, 53 into which the protrusions are respectively fitted include inner surfaces positioned facing the outer surfaces, and first and second inner inclined surfaces 48f, 53f positioned facing the first and second inclined surfaces. Thus, when a first member and a second member are weld-fixed, the positioning accuracy for both of the members is enhanced, as a result of which decreases of pump efficiency can be suppressed and excellent wase of assembly can be achieved.

IPC Classes  ?

  • F04D 29/24 - Vanes
  • F04D 13/06 - Units comprising pumps and their driving means the pump being electrically driven

7.

CONTROL DEVICE

      
Application Number JP2023043965
Publication Number 2024/142840
Status In Force
Filing Date 2023-12-08
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Yoshida, Yuki
  • Hirao, Ryusuke

Abstract

This controller comprises: a weighting coefficient calculation unit that, when an actual target damping force is calculated on the basis of a calculated value from a vehicle behavior calculation unit, calculates a weighting coefficient for making the actual target damping force approach a value close to a predetermined target damping force; a vertical movement calculation unit that determines the vertical-direction movement state of a vehicle; a pitch movement calculation unit that determines the pitch-direction movement state of the vehicle; an actual target damping force calculation unit that calculates the actual target damping force on the basis of the weighting coefficient from the weighting coefficient calculation unit and the calculation results of the vertical movement calculation unit and the pitch movement calculation unit; a target damping coefficient calculation unit that calculates a target damping coefficient on the basis of the value calculated by the actual target damping force calculation unit; a correction unit that calculates a corrected damping coefficient produced by lowering an upper limit of the target damping coefficient in a low-speed range in which the relative speed between sprung and unsprung parts of the vehicle is below a prescribed value; and a control signal output unit that outputs a control signal corresponding to the corrected damping coefficient to a damping force regulating-type shock absorber.

IPC Classes  ?

  • B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements

8.

IMAGE PROCESSING DEVICE

      
Application Number JP2023038642
Publication Number 2024/142571
Status In Force
Filing Date 2023-10-26
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kido Hideaki
  • Irie Kota

Abstract

This image processing device comprises a computation device. The computation device: detects an object in each of a plurality of images captured by a plurality of cameras; estimates the distance to the object in each of the plurality of images; uses the estimated distances to the object in each of the plurality of images and camera parameters of the plurality of parameters to determine, among feature points of the object, a feature point that can be acquired in any one of the plurality of images; derives a feature amount for the vicinity of the determined feature point in each of the plurality of images; collates the feature amounts of the plurality of images; and measures the distance to the object on the basis of results of collating the feature amounts.

IPC Classes  ?

  • G01C 3/06 - Use of electric means to obtain final indication
  • G08G 1/16 - Anti-collision systems
  • G06T 7/593 - Depth or shape recovery from multiple images from stereo images

9.

AFFIXING STRUCTURE, THROTTLE VALVE CONTROL DEVICE, AND ASSEMBLY METHOD FOR THROTTLE VALVE CONTROL DEVICE

      
Application Number JP2022048445
Publication Number 2024/142344
Status In Force
Filing Date 2022-12-28
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Hatsuzawa Hidefumi
  • Ota Hiroyuki
  • Yamashita Daisuke
  • Yamashita Yuichi
  • Kawano Makoto

Abstract

The purpose of the present invention is to provide an affixing structure with which it is possible to inhibit inclination of a tapping screw and stabilize the tapping screw position. Provided is an affixing structure for affixing a screw member 30, 31 to a screw affixing part 35, 36, wherein: the screw member 30, 31 is a tapping screw having a male screw part; the screw affixing part 35, 36 comprises a first female screw part 35GS, 36GS provided to the side on which the screw member 30, 31 enters and a second female screw part 35TS, 36TS provided to the side opposite from the side on which the screw member 30, 31 enters relative to the first female screw part 35GS, 36GS; and the first female screw part 35GS, 36GS has a complete thread of at least 1.5 threads.

IPC Classes  ?

  • F16B 25/00 - Screws that form threads in the body into which they are screwed, e.g. wood screws, self-tapping screws
  • F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
  • F02D 9/10 - Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps

10.

ELECTRONIC CONTROLLER

      
Application Number JP2022048430
Publication Number 2024/142339
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Watarai Michihito

Abstract

Provided is an electronic controller which comprises a circuit board, a housing which hermetically retains the circuit board therein, a filter film attached to the housing, and a resinous cap covering the filter film, wherein: the housing has an inner surface depressed from the main body and has a tubular part projecting outward and having a groove in the outer circumferential surface; the filter film is bonded to an end surface of the tubular part so as to cover an air hole formed in the end surface of the tubular part; and the cap has a protrusion on the inner circumferential surface thereof and has been put on the tubular part and fixed thereto by the fitting of the protrusion into the groove.

IPC Classes  ?

11.

ROTOR OF ROTARY ELECTRICAL MACHINE, AND ROTARY ELECTRICAL MACHINE

      
Application Number JP2022048676
Publication Number 2024/142403
Status In Force
Filing Date 2022-12-28
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Miyagi, Takuya
  • Baba, Yuichiro
  • Narushima, Hiroki
  • Yoshida, Shota

Abstract

A rotor of a rotary electrical machine in which a plurality of blocks are layered in the axial direction, each of the blocks being provided with a plurality of magnet holes and magnets that are inserted into the magnet holes to form magnetic poles, wherein: the magnet holes retain the magnets so as to be inclined relative to a d-axis of the magnetic poles; between each of the magnetic poles, the plurality of blocks are provided with a through-hole having a set of first edges that extend in the radial direction, a second edge that extends in the circumferential direction on the radially inner side, and a protrusion that protrudes radially outward from the second edge; and the first edges are formed along the radially inner edge of the magnet holes that are adjacent to each other in the circumferential direction.

IPC Classes  ?

  • H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]

12.

ELECTRONIC CONTROL DEVICE

      
Application Number JP2022048427
Publication Number 2024/142337
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ueno Keiko
  • Kawai Yoshio
  • Kaneko Tatsuya
  • Aonuma Katsuyuki

Abstract

This electronic control device is provided with: a circuit board which comprises a wiring board that is provided with a wiring pattern including a high-speed signal line, and an electronic component that is mounted on a first surface of the wiring board and is connected to the high-speed signal line; a case in which the circuit board is housed; and a first heat transfer member which is in contact with the electronic component and the case. The first heat transfer member is disposed so as to extend from the upper surface of the electronic component to the case, while being disposed so as to extend from the first surface of the wiring board to the case and so as to be in contact with a part of the outer peripheral surface of the electronic component at a position where the first heat transfer member is not on the high-speed signal line.

IPC Classes  ?

  • H01L 23/34 - Arrangements for cooling, heating, ventilating or temperature compensation
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

13.

PRESSURE REDUCTION VALVE AND PRODUCTION METHOD FOR PRESSURE REDUCTION VALVE

      
Application Number JP2022048076
Publication Number 2024/142195
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Koyama Tomoyoshi

Abstract

A pressure reduction valve (1) comprising: a body member (2) that has an internal space (K) accommodating a valve element (8) and has a body opening (2a) in communication with the internal space; a bottom wall surface-forming member (12) that is accommodated in the internal space, is in contact with the inner wall surface of the body member, and forms the bottom wall surface of a valve chamber in which the valve element is located; and a cap member (13) that is screwed to the body member to close the body opening.

IPC Classes  ?

  • F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded

14.

POWER CONVERSION DEVICE

      
Application Number 18562411
Status Pending
Filing Date 2021-07-15
First Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nishikimi, Fusanori
  • Hirao, Takashi

Abstract

A power conversion device includes: a semiconductor module in which a semiconductor element is sealed; a drive circuit board on which a drive circuit that drives the semiconductor element is mounted; a control circuit board on which a control circuit that controls the drive circuit is mounted; and a first cooling member that cools the semiconductor module. The power conversion device is divided into a first space and a second space by a partition wall of a housing. The drive circuit board is disposed in the first space so as to face the semiconductor module with the first cooling member interposed between the drive circuit board and the semiconductor module. The control circuit board is disposed in the second space.

IPC Classes  ?

  • H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
  • H02M 1/14 - Arrangements for reducing ripples from dc input or output
  • H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

15.

DRIVING ASSISTANCE DEVICE

      
Application Number 18558225
Status Pending
Filing Date 2022-02-28
First Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Uemura, Koichi
  • Takahama, Taku

Abstract

An object of the present invention is to execute steering control depending on a situation in an adjacent lane. A driving assistance device according to the present invention includes: at least one sensor (140) configured to acquire vehicle surrounding information; and at least one processor configured to: execute determination processing of determining whether a current situation is a first situation or a second situation based on the vehicle surrounding information; and execute steering control for driving a principal vehicle along a target track (TL) based on a result of the determination processing. The first situation is a situation in which the principal vehicle overtakes a first other vehicle traveling in a first adjacent lane. The second situation is a situation in which the principal vehicle is overtaken by the first other vehicle traveling in the first adjacent lane.

IPC Classes  ?

16.

Electronic Control Device

      
Application Number 18558481
Status Pending
Filing Date 2022-02-10
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Hagiwara, Katsumasa
  • Saito, Masato
  • Watarai, Michihito

Abstract

An electronic control device includes: a base member (4) that holds a board (2); a cover (5) that covers the board (2); a connector (3) that electrically connects the board (2) and the outside; a waterproof adhesive applied between any two of the base member (4), the cover (5), and the connector (3); and a liquid bypass (8) provided above a recess (60) that is a portion where the amount of protrusion of the waterproof adhesive to the outside is relatively small or above a waterproof adhesive located above a protrusion (44) of the waterproof adhesive protruding from the base member (4).

IPC Classes  ?

  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details

17.

SOLENOID, SOLENOID VALVE, SUSPENSION DEVICE, AND METHOD OF ASSEMBLING SOLENOID

      
Application Number 18606801
Status Pending
Filing Date 2024-03-15
First Publication Date 2024-07-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Nakano, Gota
  • Konakai, Seiryo

Abstract

A solenoid includes: a covering portion including a peripheral portion to cover a periphery of a coil contained in a cylindrical housing, the covering portion covering an opening 61 of the housing; a sleeve provided around an outer periphery of the covering portion, the sleeve being configured to be disassemblable; and a sealing element disposed inside the sleeve, the sealing element being configured to prevent foreign matters from entering the housing.

IPC Classes  ?

  • H01F 7/128 - Encapsulating, encasing or sealing
  • B60G 17/056 - Regulating distributors or valves
  • F16K 31/06 - Operating means; Releasing devices magnetic using a magnet

18.

VEHICLE CHARGE DEVICE AND VEHICLE CHARGE SYSTEM

      
Application Number JP2022048378
Publication Number 2024/142320
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Takuma, Hiroaki
  • Miyazaki, Hideki
  • Innami, Toshiyuki
  • Yasukawa, Yoshihito

Abstract

This vehicle charge device and this vehicle charge system include: a power converter connected to an AC power source outside a first vehicle and converting AC power received from the AC power source into first DC power; a voltage converter transforming an input DC voltage into a charge voltage for a first battery; a voltage conversion control unit controlling the voltage converter; and a DC input terminal connected to a DC power source outside the first vehicle. The direct input terminal receives, for the voltage converter, a DC voltage of second DC power received from the DC power source. The voltage converter transforms the DC voltage of at least one of the first DC power or the second DC power into a charge voltage for the first battery according to an instruction from the voltage conversion control unit.

IPC Classes  ?

  • B60L 53/22 - Constructional details or arrangements of charging converters specially adapted for charging electric vehicles

19.

BALANCER DEVICE FOR INTERNAL COMBUSTION ENGINE

      
Application Number JP2023043104
Publication Number 2024/142758
Status In Force
Filing Date 2023-12-01
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Matsuo, Masatoshi

Abstract

This balancer device comprises: an idler shaft 28 that has an idler sprocket 30 on which a drive chain 25 is wound and an idler gear 31 which is integrated with the idler sprocket; and a balancer housing 11 that accommodates, in the interior thereof, a balancer shaft which generates a vibratory force by a rotational force transmitted from an idle gear, said balancer device having a support part 22 that is disposed on the outer part of an upper housing 17 and that supports an end portion of the idler shaft, a boss part 21 that is provided in proximity to the support part in the same row in the longitudinal direction, and a first reinforcing part 37 and a second reinforcing part 38 that are disposed between the support part and the boss part and that reinforce the lower housing 16 side lower part of the support part. Thus, it is possible to suppress the occurrence of abnormal sounds and/or vibrations between the idle gear and a drive-side gear.

IPC Classes  ?

  • F02B 77/00 - Component parts, details, or accessories, not otherwise provided for
  • F16F 15/26 - Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system

20.

ELECTRICAL CIRCUIT BODY AND POWER CONVERSION DEVICE

      
Application Number JP2023037019
Publication Number 2024/142542
Status In Force
Filing Date 2023-10-12
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Inoue, Ryo
  • Tsuyuno, Nobutake
  • Ide, Eiichi
  • Shimura, Takahiro

Abstract

Provided is an electrical circuit body comprising a semiconductor device in which semiconductor elements are sealed with a sealing material and terminals from the semiconductor elements are led out, a board provided with wiring to which the terminals are connected, a cooling member placed opposite to the semiconductor device to cool heat generated by the semiconductor elements, a fixing member for fixing the cooling member to the semiconductor device, and a pressing member for pressurizing the fixing member in a direction in which the cooling member is in close contact with the semiconductor device, wherein the fixing member includes a support portion for supporting connection between the terminals and the wiring by a pressing force transmitted from the pressing member.

IPC Classes  ?

  • H01L 23/40 - Mountings or securing means for detachable cooling or heating arrangements
  • H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices the devices being of types provided for in two or more different subgroups of the same main group of groups , or in a single subclass of ,

21.

FUEL INJECTION DEVICE

      
Application Number JP2023034023
Publication Number 2024/142510
Status In Force
Filing Date 2023-09-20
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Yoneya Naoki
  • Mukai Hiroshi
  • Sugii Taisuke
  • Miyamoto Akiyasu
  • Miyake Takao
  • Iizuka Takatoshi

Abstract

The present invention provides a fuel injection device that can prevent air bubbles from remaining in a fuel flow path in interior space of a tip portion provided with injection holes. This fuel injection device comprises a valve seat portion having a tapered shape, and a valve body. The valve seat portion has a plurality of fuel injection holes. The valve body is seated on or is separated from the valve seat portion. An injection-hole facing region in the surface of the valve body which faces the plurality of fuel injection holes is more lyophilic than a tip region more on a tip side than the injection-hole facing region.

IPC Classes  ?

  • F02M 61/18 - Injection nozzles, e.g. having valve-seats
  • F02M 61/06 - Fuel injectors not provided for in groups  or having valves the valves being furnished at seated ends with pintle- or plug-shaped extensions

22.

IN-VEHICLE PROCESSING DEVICE AND OBJECT RECOGNITION METHOD

      
Application Number JP2023039995
Publication Number 2024/142607
Status In Force
Filing Date 2023-11-07
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sakayori Go
  • Kido Hideaki
  • Toyoda Hidehiro

Abstract

An aspect of the present invention has: a point group storage unit that stores a first point group acquired by measuring a first outside region; a point group missing region estimation unit that estimates a point group missing region in which a measurement point included in a point group acquired in an object around a vehicle does not satisfy a prescribed condition; a point group matching unit that matches, in the point group missing region, the stored first point group with a second point group acquired by measuring a second outside region; a third point group generation unit that generates a third point group by using the first point group and the second point group matched by the point group matching unit; and an object recognition unit that recognizes an object by using the third point group.

IPC Classes  ?

23.

LOAD DRIVING DEVICE AND METHOD FOR CONTROLLING LOAD DRIVING DEVICE

      
Application Number JP2022048411
Publication Number 2024/142331
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Tsukio Koichi

Abstract

Provided is a load driving device having a plurality of boost circuits connected in parallel and achieving such a high reliability that, while protecting the components of the boost circuits, even when some of the boost circuits have failed, a boost operation can be continued by the other normal boost circuits. The load driving device is characterized by comprising: a first boost circuit; a second boost circuit connected to the first boost circuit in parallel; a first current cutoff circuit disposed on the upper stage side of the first boost circuit; a second current cutoff circuit disposed on the lower stage side of the first boost circuit; a third current cutoff circuit disposed on the upper stage side of the second boost circuit; a fourth current cutoff circuit disposed on the lower stage side of the second boost circuit; and a calculation device that calculates control commands for controlling the first boost circuit and the second boost circuit. The calculation device cuts off the current from a power supply to the first boost circuit by the first current cutoff circuit when detecting a failure of the first boost circuit and changes the current setting value of the second boost circuit to a value lower than that before the failure to operate the second boost circuit.

IPC Classes  ?

  • H02M 3/155 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

24.

SYNCHRONOUS MOTOR CONTROL DEVICE, ELECTRIC VEHICLE, AND SYNCHRONOUS MOTOR CONTROL METHOD

      
Application Number JP2022048406
Publication Number 2024/142330
Status In Force
Filing Date 2022-12-27
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Matsuo, Kentaro
  • Taniguchi, Shun

Abstract

A synchronous motor control device according to the present invention is provided with: a torque command value conversion unit that converts a torque command value for a synchronous motor to a second torque command value gradually increasing in a region including the peak torque of the synchronous motor; a difference calculation unit that calculates a difference between the torque of the synchronous motor and the second torque command value; a voltage phase control unit that controls a voltage phase angle so that the difference becomes smaller; and a power conversion unit that converts DC power to AC power on the basis of the voltage phase angle and outputs the converted AC power to the synchronous motor. When a code of the torque command value is inverted from that at a current operation point of the synchronous motor, the difference calculation unit corrects the difference by calculating the second torque command value on the basis of a prescribed correction value.

IPC Classes  ?

  • H02P 21/22 - Current control, e.g. using a current control loop

25.

IMAGE RECOGNITION DEVICE AND SAVED IMAGE DETERMINATION METHOD

      
Application Number JP2023041494
Publication Number 2024/142657
Status In Force
Filing Date 2023-11-17
Publication Date 2024-07-04
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kitayama, Akira
  • Ono, Goichi
  • Ito, Hiroaki

Abstract

This image recognition device, which performs object detection by using an image recognition program with respect to an input image, comprises: a storage unit that stores a current program, which is a conventional image recognition program, and a new program, which is a new image recognition program; a difference extraction unit that extracts a detection difference which is a difference between an object detection result of the current program and an image recognition result of the new program with respect to the same input image; a transmission determination unit that determines a saving need as to whether or not to save the input image on the basis of a status of appearance of the detection difference; and a saving unit that outputs the input image that the transmission determination unit has determined to save to the outside of the image recognition device, or that saves the input image that the transmission determination unit has determined to save in the image recognition device.

IPC Classes  ?

  • G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
  • G06T 7/00 - Image analysis
  • G06T 7/70 - Determining position or orientation of objects or cameras
  • G08G 1/00 - Traffic control systems for road vehicles
  • G08G 1/16 - Anti-collision systems

26.

SUPPORT STRUCTURE FOR FUEL INJECTION VALVE

      
Application Number 18291352
Status Pending
Filing Date 2022-10-17
First Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Okamoto, Atsushi
  • Fukunaga, Takaya
  • Noda, Kazuki
  • Suzuki, Takumi

Abstract

In a support structure for a fuel injection valve (I), a snap protrusion (21) snap-engaged with an outer peripheral surface of a fuel introduction cylinder part (4) accepted in a notch (19) is formed on an inner side surface of the notch (19) of the base plate (15). A snap engagement force of the snap protrusion (21) with respect to the fuel introduction cylinder part (4) automatically increases because of an increase in a contact frictional force of the elastic piece (16) against the base plate (15) caused by an increase in a flexural repulsive force of the elastic piece (16), in a mounted state of the fuel injection valve (I) on the engine (E).

IPC Classes  ?

  • F02M 61/14 - Arrangements of injectors with respect to engines; Mounting of injectors
  • F02M 51/06 - Injectors peculiar thereto

27.

VEHICLE CONTROL DEVICE

      
Application Number JP2022046807
Publication Number 2024/134749
Status In Force
Filing Date 2022-12-20
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Shimizu Ryosuke

Abstract

The storing of abnormality cause analytical data in a vehicle control device involves a problem in which: a voltage reduction that results from a power-off operation by a driver due to variations in charge/discharge characteristics which change according to the types of vehicle-mounted electronic components and electric components and the number of said mounted components is determined to be a voltage reduction that results from the occurrence of a power abnormality and is stored as analytical data; and data that is useful for failure cause analysis is overwritten and thus cannot be obtained. In view of said problem, when a reduction in supply voltage has been detected, a vehicle control device according to the present invention generates analytical data and simultaneously stops vehicle control functions, and records the analytical data in a nonvolatile memory at any of the following timings: when the abnormality has been resolved as indicated by the detection of a rise in voltage; when the duration of a voltage reduction has become equal to a certain period or longer; when operation of a vehicle control function whereby breakage of a power supply system is anticipated has occurred within a certain period before the vehicle control functions are stopped; and when operation of a vehicle control function whereby a large voltage fluctuation is generated has occurred within a certain period before the vehicle control functions are stopped.

IPC Classes  ?

  • B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric

28.

TRAVEL PATH GENERATION DEVICE

      
Application Number JP2022047147
Publication Number 2024/134804
Status In Force
Filing Date 2022-12-21
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ando Koichi
  • Ampo Keisuke

Abstract

The purpose of the present invention is to generate a safe travel path where hands-off driving can be implemented along a laneless section. A travel path generation device 10 comprises: a map storage unit 12 in which map information is stored; a section discernment unit 13 that, on the basis of the map information, discerns between a laneless section where a plurality of lanes L are not demarcated and a laned section where a plurality of lanes L are demarcated; and a path generation unit 11 that generates a travel path of a vehicle 1. The section discernment unit 13 discerns between one laned section, a laneless section located in front of the one laned section in the advancing direction of the vehicle 1, and another laned section located in front of the laneless section in the advancing direction of the vehicle 1. The path generation unit 11 calculates the number of crossings with other lane links at each of a plurality of lane links connecting each lane L in the one laned section with each lane L in the other laned section. The path generation unit 11 generates a travel path 70 on the laneless section on the basis of the calculated number of crossings.

IPC Classes  ?

  • G01C 21/26 - Navigation; Navigational instruments not provided for in groups specially adapted for navigation in a road network

29.

GATE DRIVE CONTROL APPARATUS AND INVERTER APPARATUS

      
Application Number JP2022047452
Publication Number 2024/134842
Status In Force
Filing Date 2022-12-22
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Arafune, Takuya
  • Ikuyama, Takeshi
  • Tai, Shintaro
  • Doi, Masahiro

Abstract

A gate drive control apparatus (1) comprises: a gate drive unit (14) which outputs a gate drive signal to a gate of a power device (2) on the basis of a gate control command that has been input; and a gate diagnosing unit (11) which detects gate anomaly on the basis of a comparison between the gate control command and the gate drive signal.

IPC Classes  ?

  • H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
  • H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

30.

VEHICLE CONTROL DEVICE

      
Application Number JP2022047619
Publication Number 2024/134873
Status In Force
Filing Date 2022-12-23
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Takahashi Yuji
  • Shimizu Ryosuke

Abstract

With the objective of preventing excessive activation of lane departure prevention (LDP) and lane departure warning (LDW) by appropriate operation of a turn indicator by a driver when changing lanes, a vehicle control device according to the present invention determines, by means of an external environment recognizing unit, that a vehicle will hit an obstacle or will travel in a position that is too close to the obstacle if a state in which the vehicle is driving along a lane continues. At this time, the vehicle control device determines whether there is a region (drivable region) through which the vehicle could drive safely if steered to either the left or right, and proposes to the driver, by means of a display or a sound, to operate the turn indicator in the direction in which it is safe to drive.

IPC Classes  ?

  • B60W 30/12 - Lane keeping
  • B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention

31.

ELECTRONIC CONTROL DEVICE

      
Application Number JP2023036130
Publication Number 2024/135032
Status In Force
Filing Date 2023-10-03
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Teranishi Minami
  • Fukuda Tomohiro
  • Ichikawa Eiji
  • Motoda Haruaki

Abstract

This electronic control device comprises: a substrate on which electronic components are mounted; a case that houses the substrate; a heat dissipation member that is thermally connected to the electronic components with a thermally conductive member interposed therebetween, and that releases heat transmitted from the electronic components to outside the case; and a fan that generates a flow of cooling air that cools the heat dissipation member. The substrate has a high-temperature region on which high-heat-generating components are mounted, and a low-temperature region on which high-heat-generating components are not mounted. An opening that faces the high-temperature region is provided on the case. The heat dissipation member has a thermal diffusion unit that diffuses heat from the high-heat-generating components, and heat dissipation fins that project outside the case via the opening from the thermal diffusion unit. The thermal diffusion unit has a fin base to which the high-heat-generating components are connected and that is provided with the heat dissipation fins, and an extension part that extends from the fin base along the substrate, and that is thermally connected via an intermediate member to a low-temperature-region-facing part that faces the low-temperature region of the case.

IPC Classes  ?

  • H01L 23/467 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing gases, e.g. air
  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

32.

CAMERA DEVICE

      
Application Number JP2023041597
Publication Number 2024/135196
Status In Force
Filing Date 2023-11-20
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Katou Seiichi
  • Shinohara Hidenori
  • Oka Naoki
  • Hirohata Shigeto

Abstract

A camera device according to the present invention is provided with: a waterproof casing; a transparent section provided on the waterproof casing; and a front slope section formed of one end section of the transparent section of the waterproof casing and provided on the front side of the transparent section with respect to an optical axis direction (a third direction Z). Furthermore, the front slope section has a slope with respect to the optical axis direction.

IPC Classes  ?

  • H04N 23/51 - Housings
  • G03B 15/00 - Special procedures for taking photographs; Apparatus therefor
  • G03B 17/02 - Bodies
  • G03B 17/08 - Waterproof bodies or housings
  • G03B 17/56 - Accessories
  • H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

33.

MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD

      
Application Number JP2023043233
Publication Number 2024/135310
Status In Force
Filing Date 2023-12-04
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Saotome, Hiroto
  • Hano, Masaki
  • Jitsuishi, Makoto

Abstract

A motor control device and a motor control method according to one aspect of the present invention involves: acquiring a detection signal of a current sensor for detecting current flowing in a conduction phase of a three-phase blushless motor; performing 120-degree rectangular wave driving on the three-phase blushless motor on the basis of a control current value based on the detection signal; and obtaining the control current value on the basis of a current value detected by the current sensor before switching of the conduction phase in the 120-degree rectangular wave driving, and a current value detected by the current sensor after said switching. This configuration makes it possible to suppress oscillation of a motor current.

IPC Classes  ?

  • H02P 6/06 - Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed

34.

VEHICLE CONTROL DEVICE

      
Application Number 18555803
Status Pending
Filing Date 2022-03-09
First Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kato, Hiroki
  • Kashiwamura, Satoshi

Abstract

The present disclosure provides a vehicle control device capable of preventing an erroneous operation of an advanced driving assistance system while ensuring safety. A vehicle control device 110 includes a course prediction unit F1, a collision prediction unit F3, a vehicle control unit F5, and a control intervention adjustment unit F4. The course prediction unit F1 predicts a turning course of a vehicle as a steady circular turning course based on a steering angle θ. The collision prediction unit F3 calculates a collision margin time (TTC) between a target detected by an external environment sensor of the vehicle and the vehicle that travels on the steady circular turning course, and calculates a predicted collision lateral position CLL of the target with respect to a vehicle width center position of the vehicle. The vehicle control unit F5 performs collision avoidance control of a vehicle 100 when the collision margin time is shorter than a control intervention threshold value TH. The control intervention adjustment unit F4 adjusts the control intervention threshold value TH. The control intervention adjustment unit F4 reduces the control intervention threshold value when the predicted collision lateral position CLL with respect to the vehicle width center position of the vehicle is in a direction opposite to a direction of a steering angular speed which is a time change rate of the steering angle θ.

IPC Classes  ?

  • B60W 30/09 - Taking automatic action to avoid collision, e.g. braking and steering
  • B60W 30/095 - Predicting travel path or likelihood of collision
  • B60W 50/00 - CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - Details of control systems for road vehicle drive control not related to the control of a particular sub-unit

35.

MAP GENERATION/SELF-POSITION ESTIMATION DEVICE

      
Application Number 18557351
Status Pending
Filing Date 2022-02-17
First Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kume, Hideyuki
  • Sakano, Morihiko
  • Ogata, Takehito
  • Komoriya, Yuichi
  • Toyoda, Hidehiro

Abstract

An object is to provide a map generation/self-position estimation device that can estimate the accuracy of self-position estimation using a generation map at the time of map generation without prior learning movement, installation of a known object in an environment, and addition of a sensor. Included are a data allocation unit 110 that allocates an output of a sensor to map data 210 and position estimation data 220 and calculates a true value of a relative position between data of the map data 210 and the position estimation data 220 based on a data allocation method, a map generation unit 120 that generates a generation map including a point group and a travel position of the own vehicle from the map data 210, a self-position estimation unit 130 that estimates a position attitude of the own vehicle on the generation map by associating the position estimation data 220 with the generation map, and an accuracy evaluation unit 140 that evaluates accuracy of the position attitude of the own vehicle on the generation map estimated by the self-position estimation unit 130 from the true value of the relative position between the data.

IPC Classes  ?

  • G01C 21/30 - Map- or contour-matching
  • B60W 50/08 - Interaction between the driver and the control system
  • G01C 21/00 - Navigation; Navigational instruments not provided for in groups
  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

36.

POWER CONVERSION DEVICE

      
Application Number 18563035
Status Pending
Filing Date 2021-09-10
First Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Nishizawa, Youhei

Abstract

A power conversion device includes: a power conversion circuit that converts DC power into AC power; a positive electrode bus bar and a negative electrode bus bar connected to the power conversion circuit; a capacitor connected to at least one of the positive electrode bus bar and the negative electrode bus bar; a base plate made of metal on which the capacitor is placed; and a housing in which the power conversion circuit, the capacitor, the base plate, the positive electrode bus bar, and the negative electrode bus bar are accommodated, and a refrigerant passage is formed, in which the positive electrode bus bar and the negative electrode bus bar are installed in the housing via a resin member having insulating property, and in which the base plate on which the capacitor is placed is installed in the housing, and a thermal resistance from the capacitor to the refrigerant passage is larger than a thermal resistance from the positive electrode bus bar and the negative electrode bus bar to the refrigerant passage.

IPC Classes  ?

  • H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
  • H02M 1/14 - Arrangements for reducing ripples from dc input or output
  • H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration

37.

ON-BOARD ELECTRONIC CONTROL DEVICE

      
Application Number JP2023030998
Publication Number 2024/134993
Status In Force
Filing Date 2023-08-28
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Tsuyuki Yasuhiro
  • Kawai Yoshio
  • Ueno Keiko
  • Akiba Ryo
  • Namba Akihiro

Abstract

2222222-Si-]≦0.85" is satisfied.

IPC Classes  ?

  • H01L 23/373 - Cooling facilitated by selection of materials for the device
  • C08L 83/14 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Compositions of derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks

38.

TRAVEL ASSISTANCE DEVICE, AND TRAVEL ASSISTANCE METHOD FOR TRAVEL ASSISTANCE DEVICE

      
Application Number JP2023041694
Publication Number 2024/135201
Status In Force
Filing Date 2023-11-21
Publication Date 2024-06-27
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ito, Hiroaki
  • Kishimoto, Tadashi
  • Komatsu, Sakie

Abstract

A travel assistance device according to the present invention comprises: a region extraction unit (11) that extracts a specific region that includes traffic participants around a host vehicle from image information of sensor data; a risk derivation unit (15) that derives the degree of risk for safe travel of the host vehicle in relation to the traffic participants in the extracted specific region; a priority-setting unit (16) that sets the processing priority of the specific region according to the degree of risk; a processing-load-setting unit (18) that sets the processing load of information of the specific region according to the processing priority; and a recognition-processing unit (19) that performs traffic participant recognition on the basis of processing load information from the processing-load-setting unit.

IPC Classes  ?

39.

In-Vehicle Control Device and Manufacturing Method

      
Application Number 18287912
Status Pending
Filing Date 2022-02-02
First Publication Date 2024-06-20
Owner Hitachi Astemo, Ltd. (Japan)
Inventor Watarai, Michihito

Abstract

Provided is an in-vehicle control device (1) including: a base (10); a cover (20) fixed to the base; a circuit board (30) housed in the base and the cover; and an electronic component (40) mounted on the circuit board, in which the base is made of a steel plate material, and includes a plate-shaped main body portion (13), a bottomed cylinder (14) having a U-shaped cross section in which one of front and back surfaces of the main body portion is recessed and protrudes to the other side, and a screw portion (15) provided on a peripheral surface of the cylinder, and the circuit board is fastened to the base by a fastening member (6, 7) screwed into the screw portion of the cylinder.

IPC Classes  ?

  • B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
  • H02G 3/14 - Fastening of cover or lid to box

40.

VEHICLE CONTROL DEVICE

      
Application Number 18555563
Status Pending
Filing Date 2022-02-28
First Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Morishima, Kenta
  • Yamada, Tetsuya

Abstract

An object of the present invention is to obtain a vehicle control device capable of guiding a host vehicle to a narrow area by low-speed automatic driving by quick and precise positioning of the host vehicle, and guiding the host vehicle to a stop position of which details are unknown by designating each stop frame by beacons. A vehicle control device 101 according to the present invention includes a wireless reception unit 121 that receives radio waves through a plurality of antennas 102 mounted on a host vehicle 100, the radio waves being transmitted from a plurality of beacons 201, a position information acquisition unit 122 that obtains position information of the beacons using orientation information of the radio waves received by the wireless reception unit, and a guidance area estimation unit 124 that sets a diagonal line 301 of a rectangular area 302 from the position information and estimates a guidance area 312 from the diagonal line.

IPC Classes  ?

  • G01S 5/04 - Position of source determined by a plurality of spaced direction-finders
  • G01S 13/46 - Indirect determination of position data
  • G08G 1/09 - Arrangements for giving variable traffic instructions
  • G08G 1/16 - Anti-collision systems

41.

MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD

      
Application Number 18555569
Status Pending
Filing Date 2022-02-15
First Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sato, Yasuaki
  • Suzuki, Keisuke
  • Hoshino, Katsuhiro
  • Sekiguchi, Hideki

Abstract

A motor control device includes: an inverter that supplies an alternating current to a motor mounted on a vehicle; a current detection unit that detects the alternating current; a position detection unit that detects a rotor phase angle of the motor; and an inverter control unit that controls the inverter based on a current value detected by the current detection unit and the rotor phase angle detected by the position detection unit, wherein the inverter control unit, in response to a timing at which vibration of the vehicle is generated, changes a current phase angle of the motor, and makes a cycle of a waveform of a resultant current of the alternating current irregular.

IPC Classes  ?

  • H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
  • H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters

42.

POWER CONVERSION DEVICE AND DRIVE DEVICE

      
Application Number 18555574
Status Pending
Filing Date 2022-02-21
First Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Inada, Ryoichi
  • Kanekawa, Nobuyasu
  • Nakano, Hiroshi
  • Shigeta, Satoru

Abstract

A power conversion device includes a power conversion circuit in which upper and lower arm circuits in which switching elements are connected in series are connected in parallel for at least three phases, a plurality of fuses that are connected in series with the switching elements of the respective phases of the power conversion circuit and blown at a predetermined rated current or more, a short-circuit failure location determination unit that determines a short-circuit failure location of the switching element, and a fuse blowout-time current control unit that controls driving of another switching element different from the switching element so that a current flowing through the switching element determined to be the short-circuit failure location by the short-circuit failure location determination unit becomes equal to or more than the rated current of the fuse.

IPC Classes  ?

  • H02P 29/028 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
  • H02P 27/14 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation with three or more levels of voltage
  • H02P 29/68 - Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component

43.

INFORMATION PROCESSING DEVICE AND SYSTEM, AND IN-VEHICLE ELECTRONIC DEVICE

      
Application Number JP2022045591
Publication Number 2024/127446
Status In Force
Filing Date 2022-12-12
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Mikami Shugo
  • Fujii Yasuhiro
  • Nomura Teruaki
  • Kataoka Mikio

Abstract

An information processing device according to the present invention comprises: a storage unit that holds a unique number identifying a vehicle or an in-vehicle electronic device; a vehicle selection unit that selects a vehicle to which update software is to be applied; a key generation unit that generates a secret key which uses, as a public key, the selected vehicle and/or the unique number of the in-vehicle electronic device incorporated in the vehicle; an encryption unit that generates encrypted update software by encrypting update software using the secret key; and a transmission unit that transmits the encrypted update software to the vehicle.

IPC Classes  ?

44.

TRAFFIC FLOW CONTROL SYSTEM

      
Application Number JP2022045676
Publication Number 2024/127463
Status In Force
Filing Date 2022-12-12
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Quan Qixian

Abstract

The purpose of the present invention is to efficiently allow vehicles to pass through an intersection by controlling the traffic flow at the intersection at the lane level. This traffic flow control system (1) has a server device (10) which controls the traffic flow of vehicles passing through an intersection at which roads having one or a plurality of lanes intersect. The server device (10) comprises: a zone division unit (101) that divides the intersection into a plurality of zones in accordance with the shape of the intersection and the arrangement of the entrance/exit of the intersection; a pass number calculation unit (102) that calculates, for each lane in each zone, the number of vehicles that can pass through the lanes in the respective zones at the same time; a key package management unit (104) that allocates, to each lane in each zone, a key that gives permission for vehicles (20) to enter the lanes in the respective zones, by the calculated number of vehicles; and a key distribution unit (109) that distributes the keys to the vehicles (20) in accordance with the travel route at the intersection planned by the vehicles (20). The vehicles (20) travel according to a travel route upon receiving the key distributed from the server device (10).

IPC Classes  ?

  • G08G 1/00 - Traffic control systems for road vehicles

45.

INFORMATION PROCESSING DEVICE OF UPDATE SYSTEM

      
Application Number JP2022045835
Publication Number 2024/127497
Status In Force
Filing Date 2022-12-13
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ariyasu Nobuhiro
  • Morita Nobuyoshi
  • Fujii Yasuhiro
  • Kataoka Mikio

Abstract

The purpose of the present invention is to efficiently update, using SOTA, some software modules provided in an in-vehicle device while guaranteeing the operation of the updated software modules. This information-processing device (100) of an update system (1) is for updating software modules to be updated, which are some of a plurality of software modules provided to an in-vehicle device (110). The information-processing device (100) comprises a determination unit (101) that determines an update range of software modules among the plurality of software modules. The determination unit (101) determines an update range on the basis of whether or not a combination of the software modules to be updated and other software modules after the update of the software modules to be updated is a combination for which the operation of each software module has been verified.

IPC Classes  ?

  • B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric

46.

MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD

      
Application Number JP2022046103
Publication Number 2024/127570
Status In Force
Filing Date 2022-12-14
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sato, Yasuaki
  • Okuda, Yuki
  • Tsukagoshi, Takaya
  • Miyamoto, Shogo
  • Aoyagi, Shigehisa
  • Ooiwa, Hiroyuki

Abstract

This motor control device is connected to an inverter that performs power conversion between DC power and AC power, controls the inverter on the basis of a carrier frequency and a current command value according to a torque command, and controls the drive of a motor by the AC power. The motor control device comprises a command value generation unit that calculates, on the basis of the detected temperature of the inverter, an inverter energy margin value depending on the energy margin of the inverter up to an inverter limit temperature that is the limit temperature of the inverter and generates, in accordance with the inverter energy margin value, new carrier frequency and current command value replacing the carrier frequency and the current command value. When raising the temperature of the inverter, the motor control device controls the inverter by changing the carrier frequency and the current command value to those generated by the command value generation unit.

IPC Classes  ?

  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation

47.

CAMERA CALIBRATION DEVICE AND CAMERA CALIBRATION METHOD

      
Application Number JP2022046243
Publication Number 2024/127591
Status In Force
Filing Date 2022-12-15
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Watanabe Atsushi

Abstract

This camera calibration device includes an amount-of-misalignment calculation unit for calculating the amount of misalignment between a detected position of a target for calibration detected in each area with a predetermined size in an image of the target captured by a camera via a refraction layer and a calculated position of the target calculated for each area of the image that can be captured by the camera without intervention of the refraction layer, an evaluation unit for evaluating the amount of misalignment for each area, and an amount-of-correction calculation unit that calculates the amount of correction for correcting the detected position of the target to the calculated position of the target, for each area according to an evaluation result for the amount of misalignment and calibrates the camera on the basis of the amount of correction for the amount of misalignment calculated for each area.

IPC Classes  ?

  • H04N 23/60 - Control of cameras or camera modules

48.

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

      
Application Number JP2022046379
Publication Number 2024/127634
Status In Force
Filing Date 2022-12-16
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Yamaguchi Naomichi
  • Nakai Hirotaka
  • Nemoto Masashi
  • Mukaihara Osamu
  • Kurashima Yoshikuni
  • Eto Takeshi

Abstract

The present disclosure provides a control device for an internal combustion engine with which it is possible to reduce overshooting of a common rail fuel pressure with respect to a target pressure. This control device 100 for an internal combustion engine comprises an injection amount control unit 110 and a pressure control unit 120. The pressure control unit 120 includes a feedback control unit 121, a discharge flow rate computation unit 122, a discharge flow rate limiting unit 123, and an energization start angle computation unit 124. The feedback control unit 121 calculates a target discharge flow rate FRt for fuel discharged from a high-pressure fuel pump to a common rail on the basis of a pressure deviation ∆P between a fuel pressure Pf and a target pressure Pt. The discharge flow rate computation unit 122 calculates a balanced discharge flow rate FRb that is the result of increasing or decreasing the target discharge flow rate FRt so that the target discharge flow rate FRt and an outflow flow rate of fuel that is injected from an injector and that flows out from the common rail are balanced. The discharge flow rate limiting unit 123 outputs a limited discharge flow rate FRr that has the balanced discharge flow rate FRb as the upper limit, on the basis of the pressure deviation ∆P. The energization start angle computation unit 124 calculates an energization start angle θes, which is a phase angle of reciprocating motion of a plunger at the start of energization of a solenoid valve of the high-pressure fuel pump, on the basis of the limited discharge flow rate FRr.

IPC Classes  ?

  • F02M 59/36 - Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages
  • F02D 41/38 - Controlling fuel injection of the high pressure type

49.

POWER SUPERIMPOSED COMMUNICATION DEVICE AND POWER SUPERIMPOSED COMMUNICATION SYSTEM

      
Application Number JP2023029371
Publication Number 2024/127712
Status In Force
Filing Date 2023-08-10
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Uematsu Yutaka

Abstract

Provided is a power superimposed communication device that can suppress the increase of mode conversion losses caused by unevenness in electrical characteristics. This power superimposed communication device 1-1 comprises: differential wires 5-1 that include signal wires 6-1, 7-1 connected to differential signal wires 8; a power element 30-1 that supplies a first applied voltage and a second applied voltage to the signal wires 6-1, 7-1; a high frequency cutoff filter 11-1 that is connected to the wire 6-1; a high frequency cutoff filter 11-12 that is connected to the wire 7-1; and coils 12-1, 12-2. The coil 12-1 is connected to the cutoff filter 11-1. The coil 12-2 is connected to the cutoff filter 11-2. The coils 12-1, 12-2 have inductors 10-1 that are magnetically coupled in reverse winding. A power is superimposed on the differential signal wires 8. The inductance value L1 of the cutoff filter 11-1 and the inductance value L3 of the coil 12-1 have a relationship of L1 < 1.5 × L3 therebetween, while the inductance value L2 of the cutoff filter 11-2 and the inductance value L4 of the coil 12-2 have a relationship of L2 < 1.5 × L4 therebetween.

IPC Classes  ?

  • H04B 3/54 - Systems for transmission via power distribution lines
  • H01F 27/00 - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - Details of transformers or inductances, in general
  • H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
  • H03H 7/09 - Filters comprising mutual inductance
  • H04L 25/02 - Baseband systems - Details

50.

ROTATING ELECTRICAL MACHINE

      
Application Number JP2023030703
Publication Number 2024/127726
Status In Force
Filing Date 2023-08-25
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Fujima, Yuri
  • Toya, Akihito
  • Goto, Hideaki
  • Itaya, Takaki

Abstract

This rotating electrical machine comprises a rotor and a stator disposed outside the rotor in the radial direction. The rotor has: a first flow path that extends in the radial direction and has a first discharge opening that opens toward the outside in the radial direction; and a second flow path that extends in the radial direction and has a second discharge opening that opens toward the outside in the radial direction. The second discharge opening is provided at a position closer to the stator than the first discharge opening. The second flow path has a curved portion where at least a part thereof is curved.

IPC Classes  ?

  • H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

51.

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

      
Application Number JP2023033714
Publication Number 2024/127757
Status In Force
Filing Date 2023-09-15
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Kimita Kazuya
  • Kido Hideaki
  • Irie Kota

Abstract

Provided is an image processing device comprising an image acquisition unit that acquires a plurality of images captured by a plurality of cameras, a first distance estimation unit that estimates a distance to an object using the plurality of images, a second distance estimation unit that estimates the distance to the object using at least one of the plurality of images, an image capture time computation unit that determines the image capture time of at least a portion of pixels included in the plurality of images, a reliability computation unit that determines the reliability of the plurality of images on the basis of a difference in image capture time of the pixels in the plurality of images, and a distance determination unit that determines the distance to the object using the reliability and the distance estimated by the first distance estimation unit and/or the second distance estimation unit.

IPC Classes  ?

  • G01C 3/06 - Use of electric means to obtain final indication
  • G06T 7/593 - Depth or shape recovery from multiple images from stereo images
  • H04N 23/60 - Control of cameras or camera modules

52.

VEHICLE CONTROL DEVICE, VEHICLE CONTROL METHOD, AND VEHICLE CONTROL SYSTEM

      
Application Number JP2023043396
Publication Number 2024/128063
Status In Force
Filing Date 2023-12-05
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sato, Yuu
  • Sonoda, Hiroki
  • Taguchi, Atsushi

Abstract

Provided are a vehicle control device, a vehicle control method, and a vehicle control system with which it is possible to achieve a turning function including tire steering by means of a braking/driving force. The vehicle control device includes a steer-by-wire system for steering left and right steered wheels that are mechanically separated from a steering wheel, and is provided in a vehicle in which a scrub radius of the steered wheels is set to be negative. A control unit of the vehicle control device is characterized in that, when an abnormal signal of the steering function of the steer-by-wire system is acquired, the vehicle control device outputs, in accordance with a steering operation input to the steering wheel, a brake/drive command to make a total value of a driving force and a braking force imparted to the steered wheel on the outside of the turn of the vehicle, among the left and right steered wheels, smaller than a total value of the driving force and the braking force imparted to the steered wheel on the inside of the turn of the vehicle, where the driving force is a positive physical quantity and the braking force is a negative physical quantity.

IPC Classes  ?

  • B60W 50/029 - Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
  • B60W 10/00 - Conjoint control of vehicle sub-units of different type or different function
  • B60W 10/04 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
  • B60W 10/18 - Conjoint control of vehicle sub-units of different type or different function including control of braking systems
  • B60W 10/20 - Conjoint control of vehicle sub-units of different type or different function including control of steering systems

53.

ROTATING ELECTRICAL MACHINE

      
Application Number 18554821
Status Pending
Filing Date 2022-02-02
First Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nitta, Takayuki
  • Saito, Yasuyuki
  • Kitahara, Motoo
  • Nakade, Tomoyuki

Abstract

A rotating electrical machine includes a coil wound in a distributed square wire manner, a stator core forming a slot that stores the coil, a temperature sensor that detects a temperature of the coil, and a housing that houses the stator core. The temperature sensor includes a support member that supports the temperature sensor by being connected and fixed to the housing, and the support member includes a communication portion communicating with a coil space formed by the stator core and adjacent coils among coils housed in slots.

IPC Classes  ?

  • H02K 11/25 - Devices for sensing temperature, or actuated thereby
  • B60K 1/00 - Arrangement or mounting of electrical propulsion units

54.

ELECTRONIC CONTROL DEVICE AND IN-VEHICLE SYSTEM

      
Application Number 18555718
Status Pending
Filing Date 2022-02-04
First Publication Date 2024-06-20
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Maehama, Hiroki
  • Ito, Hiroaki
  • Yamada, Takeshi
  • Maeda, Koji
  • Serizawa, Kazuyoshi

Abstract

An electronic control device that executes arithmetic processing for controlling an operation of a vehicle includes: a determination unit that is connected to one or a plurality of electronic devices that recognize an external environment on the basis of information of a sensor provided in the vehicle and determines an operation of the vehicle on the basis of external recognition information transmitted from the electronic devices; and a functional boundary change determination unit that determines changes in functions of the electronic control device and the electronic devices if it is determined that a processing load of the electronic control device is high.

IPC Classes  ?

  • B60W 60/00 - Drive control systems specially adapted for autonomous road vehicles
  • B60W 50/04 - Monitoring the functioning of the control system

55.

PROCESSING LOAD ESTIMATION SYSTEM AND PROCESSING LOAD ESTIMATION METHOD

      
Application Number JP2022045930
Publication Number 2024/127523
Status In Force
Filing Date 2022-12-13
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Tsukahara Kenta
  • Iida Takahiro

Abstract

A processing load estimation system comprising: a software component input unit to which is inputted a software component having a plurality of computation elements for realizing a predetermined computation flow, the computation path of the software component differing depending on an input value; a test suite input unit to which is inputted a test suite imparted to the software component; a processing load estimation unit that estimates a processing load per computation path; a simulation unit that simulates the software component on the basis of the test suite and outputs a dynamic feature obtained from a plurality of simulation results; and a result processing unit that processes the dynamic feature outputted from the simulation unit. The result processing unit estimates the practical processing load of the software component on the basis of the dynamic feature, a plurality of computation results that correspond to the input value, and the processing load per computation path.

IPC Classes  ?

  • G06F 11/34 - Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation

56.

VEHICLE CONTROL DEVICE

      
Application Number JP2022045957
Publication Number 2024/127538
Status In Force
Filing Date 2022-12-14
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Fukasawa Yoshitaka
  • Matsuda Satoshi
  • Kogure Yusuke

Abstract

The purpose of the present invention is to provide a vehicle control device with which it is possible to share with external parties information that is useful for improving a driving assistance function that performs an operation different from what the driver expects. This vehicle control device 10 has a driving assistance function for a vehicle 1, and comprises an information recording device 110 that records driving assistance operation information, which is information pertaining to the operation of the driving support function, and driver reaction information, which is information pertaining to the reaction of the driver to the operation of the driving assistance function, in association with each other, and transmits driving assistance operation information and driver reaction information recorded at the time of the reaction of the driver to the outside.

IPC Classes  ?

  • B60W 50/08 - Interaction between the driver and the control system

57.

ELECTROMAGNETIC FUEL INJECTION VALVE

      
Application Number JP2022046064
Publication Number 2024/127558
Status In Force
Filing Date 2022-12-14
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ouchi Norihide
  • Machida Keisuke

Abstract

Provided is an electromagnetic fuel injection valve (1) that suppresses overshoot and overshoot return, and that reduces a fluid pressure acting on a valve body (6) as much as possible. In the electromagnetic fuel injection valve (1), a lift up to a valve opening position of the valve body (6) that is performed against an urging force of a return spring (7) according to excitation of a coil is achieved when overshoot and overshoot return caused at that time are set. A small pitch part (16) of the return spring (7) shows a totally compressed state when a lift amount of the valve body (6) is a first lift amount or more that is smaller than a valve opening lift amount corresponding to the valve opening position, and a large pitch part (18) acts when the lift amount is a second lift amount or more that is 1/2 or less of the valve opening lift amount.

IPC Classes  ?

  • F02M 51/06 - Injectors peculiar thereto
  • F02M 61/10 - Other injectors with elongated valve bodies, i.e. of needle-valve type

58.

LIGHT DISTRIBUTION CONTROL SYSTEM AND LIGHT DISTRIBUTION CONTROL METHOD

      
Application Number JP2022046378
Publication Number 2024/127633
Status In Force
Filing Date 2022-12-16
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Otsuka Hiromichi
  • Doi Koji

Abstract

The present invention carries out external recognition for a vehicle and carries out light distribution control of a headlight installed in the vehicle on the basis of the external recognition for the vehicle. The configuration comprises an external sensor that acquires information about an object in the surroundings of the vehicle and a ground speed acquisition unit that acquires the ground speed of the object on the basis of output from the external sensor, wherein the coverage range of the headlight is set variably on the basis of the ground speed according to the ground speed acquisition unit.

IPC Classes  ?

  • B60Q 1/50 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking

59.

MOTOR CONTROL DEVICE AND ELECTRIC DRIVE VEHICLE

      
Application Number JP2023030644
Publication Number 2024/127725
Status In Force
Filing Date 2023-08-25
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Taniguchi Shun
  • Matsuo Kentaro
  • Ajima Toshiyuki

Abstract

A motor control device that outputs a voltage applied to an AC motor on the basis of an output voltage command value, comprising: a control-cycle-determining unit that determines a control cycle according to the fundamental frequency of the AC motor and the cutoff frequency of the current control; a control interrupt unit that determines a control interrupt on the basis of the control cycle determined by the control-cycle-determining unit; a current control unit that controls the output voltage command value on the basis of the control interrupt determined by the control interrupt unit; and a PWM control unit that controls the voltage output by PWM according to the output voltage command value controlled by the current control unit. This makes it possible to more easily suppress current oscillation due to a 6n-order harmonic current component when performing control that does not synchronize the control cycle with the inverter frequency.

IPC Classes  ?

  • H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
  • H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting

60.

SENSOR ABNORMALITY DETECTING DEVICE

      
Application Number JP2023042695
Publication Number 2024/127990
Status In Force
Filing Date 2023-11-29
Publication Date 2024-06-20
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Hirao, Ryusuke
  • Yamahata, Masatoshi
  • Kato, Shu

Abstract

This sensor abnormality detecting device comprises a CAN input unit (traveling speed input unit) into which a traveling speed of a vehicle is input, and a sprung acceleration input unit (first sensor input unit, second sensor input unit) into which a signal fluctuation range (vibration level) of a sprung acceleration sensor is input. An ECU is provided with a first determining unit for determining whether the traveling speed obtained by the CAN input unit is at least equal to a first threshold (first speed) and the signal fluctuation range of either a sprung acceleration sensor value (first sensor input value) of the sprung acceleration input unit (for example the sprung acceleration input unit) that serves as the first sensor input unit or a sprung acceleration sensor value (second sensor input value) of the sprung acceleration input unit (for example the sprung acceleration input unit) that serves as the second sensor input unit is smaller than a first fluctuation range and is smaller than the signal fluctuation range of the other.

IPC Classes  ?

  • B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
  • B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements

61.

HYDRAULIC SYSTEM FOR VEHICLE

      
Application Number 18583302
Status Pending
Filing Date 2024-02-21
First Publication Date 2024-06-13
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Murakami, Yosuke
  • Atsuta, Daiki
  • Tsuchiya, Tomoharu

Abstract

A vehicular hydraulic system includes a first hydraulic drive device configured to be driven by a hydraulic pressure generated in a first hydraulic pump, a second hydraulic drive device configured to exhibit an action different from that of the first hydraulic drive device and to be driven by a hydraulic pressure generated in a second hydraulic pump, and a single motor serving as a common power source for the first hydraulic pump and the second hydraulic pump.

IPC Classes  ?

  • F16F 9/56 - Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke
  • B60T 8/1761 - Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS responsive to wheel or brake dynamics, e.g. wheel slip, wheel acceleration or rate of change of brake fluid pressure
  • F16F 9/46 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium - Details such means combined with temperature correction allowing control from a distance

62.

FUEL INJECTION VALVE

      
Application Number JP2022044744
Publication Number 2024/121904
Status In Force
Filing Date 2022-12-05
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Azuma Kohei
  • Nabeshima Yasuhiko
  • Sanada Motoki
  • Tokumoto Seita

Abstract

Provided is a fuel injection valve in which the variation in fuel injection performance caused by distortion in an orifice is suppressed. The fuel injection valve comprises: a fuel passage (1) through which fuel is introduced; and an orifice member (3) press-fitted into the inner wall of the fuel passage (1). The orifice member (3) is provided with a cylindrical part (6) fixed to the inner wall of the fuel passage (1) through press-fitting, an end wall (7) which covers one end of the cylindrical part (6) and to which an orifice (2) is provided, and an annular stress absorption part (8) that is interposed between one end of the cylindrical part (6) and the outer circumference of the end wall (6) to absorb stress caused by the press-fitting.

IPC Classes  ?

  • F02M 61/16 - Fuel injectors not provided for in groups  or - Details not provided for in, or of interest apart from, the apparatus of groups

63.

IMAGE PROCESSING DEVICE

      
Application Number JP2022044773
Publication Number 2024/121911
Status In Force
Filing Date 2022-12-05
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Horinaga Maho
  • Tada Naoya
  • Mitoma Hiroto

Abstract

This image processing device comprises a computation device, into which is input an image in which the area in front of a vehicle is captured by an imaging device. The computation device: calculates, for each of a plurality of regions included in the image, the parallax of a subject image included in the region; and determines whether a tunnel exit is present in a particular region among the plurality of regions, on the basis of the position of a region, among the plurality of regions, for which the parallax of the subject image could not be calculated, and on the basis of the parallax calculated for another region in the vicinity of the region for which the parallax of the subject image could not be calculated.

IPC Classes  ?

  • H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
  • B60R 1/22 - Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
  • G01C 3/10 - Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument

64.

COLLISION AVOIDANCE ASSISTANCE DEVICE

      
Application Number JP2022045118
Publication Number 2024/121978
Status In Force
Filing Date 2022-12-07
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Gunji Kenta
  • Matsuda Satoshi

Abstract

In the present invention, a collision with a second oncoming vehicle is avoided even when a host vehicle has already entered a first oncoming lane, and, after having avoiding a collision with the second oncoming vehicle, having a collision with a first oncoming vehicle is also avoided. Specifically, when there is a possibility of the host vehicle colliding with the second oncoming vehicle, a collision with the second oncoming vehicle is avoided without stopping the host vehicle by using a braking force or deceleration that is less than the braking force or deceleration necessary to stop the host vehicle in front of the second oncoming lane, and, after avoiding a collision with the second oncoming vehicle, it is possible to avoid a collision with the first vehicle without stopping the host vehicle in the first oncoming lane by canceling the braking force or deceleration instructed to the host vehicle, allowing secondary damage to be minimized.

IPC Classes  ?

65.

LINEAR MOTOR, SUSPENSION DEVICE USING SAME, AND ELECTRICALLY POWERED EQUIPMENT

      
Application Number JP2023037408
Publication Number 2024/122193
Status In Force
Filing Date 2023-10-16
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Aoyama Yasuaki

Abstract

The purpose of the present invention is to provide a compact, high-thrust linear motor that suppresses any increase in ripple. In a linear motor 1 according to the present invention, an armature 8 and permanent magnets 11 that are provided to the outer-periphery side of the armature 8 move relative to each other in an axial direction. The armature 8 is provided with: a plurality of center cores 3 that are provided lined up in the axial direction, portions thereof that are on the inner-peripheral side being closely fitted together; a plurality of teeth 2 that are positioned lined up in the axial direction on the outer-peripheral side of the center cores 3, the teeth 2 being constituted by a plurality of tabular magnetic bodies being stacked in the axial direction; and coils 5 that are positioned between adjacent teeth 2 in the axial direction on the outer-peripheral side of the center cores 3.

IPC Classes  ?

  • H02K 41/03 - Synchronous motors; Motors moving step by step; Reluctance motors

66.

VEHICLE CONTROL DEVICE, VEHICLE CONTROL METHOD, AND VEHICLE CONTROL SYSTEM

      
Application Number JP2023043223
Publication Number 2024/122485
Status In Force
Filing Date 2023-12-04
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Iba, Tatsuya
  • Ueno, Kentaro

Abstract

In one embodiment of a vehicle control device, a vehicle control method, and a vehicle control system according to the present invention, when determining a host vehicle travel route to be traveled by a host vehicle on the basis of, among forward information pertaining to the host vehicle, the form of a road on which the host vehicle is to travel and an index relating to the movement of the host vehicle, if a preceding vehicle traveling ahead of the host vehicle exists, the host vehicle travel route is determined using, among the forward information, information pertaining to travel history or the traveling position of the preceding vehicle. With this configuration, it becomes possible to achieve both a comfortable ride quality in the host vehicle and a natural following behavior of the host vehicle with respect to a preceding vehicle.

IPC Classes  ?

  • B60W 30/10 - Path keeping
  • B60W 30/165 - Control of distance between vehicles, e.g. keeping a distance to preceding vehicle automatically following the path of a preceding lead vehicle, e.g. "electronic tow-bar"
  • B60W 40/02 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to ambient conditions
  • B60W 40/04 - Traffic conditions
  • B60W 40/072 - Curvature of the road
  • B60W 40/114 - Yaw movement

67.

SHOCK ABSORBER

      
Application Number 18282051
Status Pending
Filing Date 2022-03-04
First Publication Date 2024-06-13
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Ishii, Hirohito
  • Yuno, Osamu

Abstract

The invention is directed to provide a shock absorber in which hydraulic fluid is restrained from leaking out from a gap between a sub-check valve provided at a passage opening of an orifice passage and a disc valve. The sub-check valve (133) is biased toward the opening (126) of the orifice passage (130) using a biasing disc (135) (biasing member) of substantially equal diameter to the sub-check valve (133). This makes it possible to restrain hydraulic fluid in a first chamber (2A) from leaking out from a gap between a disc valve (121) and the sub-check valve (133) into a second chamber (2B) when piston velocity during an extension stroke is low (0.1 m/s or lower, exclusive zero), and thus obtain an intended damping force.

IPC Classes  ?

  • F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
  • F16F 9/34 - Special valve constructions; Shape or construction of throttling passages
  • F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper

68.

DRIVE DEVICE FOR SEMICONDUCTOR SWITCHING ELEMENT, DRIVING METHOD THEREFOR, AND POWER CONVERSION DEVICE

      
Application Number 18287940
Status Pending
Filing Date 2022-02-24
First Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Suzuki, Hiroshi
  • Wada, Shinichirou
  • Doi, Masahiro
  • Mizuhashi, Yoshiaki

Abstract

A drive device for a voltage-driven semiconductor switching element includes: a gate drive circuit configured to drive the semiconductor switching element; and a gate voltage hold circuit configured to hold a gate voltage applied to the semiconductor switching element at a predetermined hold voltage higher than a threshold voltage of the semiconductor switching element and lower than a Miller voltage of the semiconductor switching element. The gate voltage hold circuit starts an operation of holding the gate voltage at the hold voltage after a rise of a voltage between main terminals of the semiconductor switching element at a turn-off time of the semiconductor switching element and before a maximum value of the voltage between the main terminals.

IPC Classes  ?

  • H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
  • H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
  • H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
  • H03K 17/16 - Modifications for eliminating interference voltages or currents

69.

VEHICLE CONTROL DEVICE

      
Application Number JP2022045167
Publication Number 2024/121995
Status In Force
Filing Date 2022-12-07
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Kato Hiroki

Abstract

Provided, within assisted driving technology, is a vehicle control device with which an algorithm for calculating a fusion location of millimeter wave radar × millimeter wave radar enables highly precise and versatile sensing only with millimeter wave radar, and which takes into consideration a sensing error based on the principle of millimeter wave radar and at the same time can be applied in any system and to any scene, regardless of the millimeter wave radar characteristics or the installation location/angle/height. This invention has a first millimeter wave radar, and a second millimeter wave radar installed at a different location from that of the first millimeter wave radar. An object is sensed on the basis of: a first ranging location and a first measurement error of the object as sensed by the first millimeter wave radar; and a second ranging location and a second measurement error of the object as sensed by the second millimeter wave radar.

IPC Classes  ?

70.

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

      
Application Number JP2023032211
Publication Number 2024/122135
Status In Force
Filing Date 2023-09-04
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Yamazaki Kazuyoshi

Abstract

An image processing device according to the present invention comprises an image comparison unit and an image processing unit. The image comparison unit compares a first image and a second image that are inputted from a stereo camera, the first image having been detected by a first image sensor of a first camera, and the second image having been detected by a second image sensor of a second camera, and, on the basis of the difference between the first image and the second image in a second direction that is different from a first direction, calculates a correction processing coefficient for correcting the second image. The image processing unit uses the correction processing coefficient calculated by the image comparison unit to correct the second image.

IPC Classes  ?

  • G01C 3/06 - Use of electric means to obtain final indication
  • G01C 3/00 - Measuring distances in line of sight; Optical rangefinders
  • G06T 7/593 - Depth or shape recovery from multiple images from stereo images

71.

STEERAGE OPERATION INPUT MEMBER, STEERAGE OPERATION INPUT DEVICE, AND STEERING DEVICE

      
Application Number JP2023042901
Publication Number 2024/122438
Status In Force
Filing Date 2023-11-30
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Amma, Yusuke
  • Ojio, Takafumi
  • Sakaki, Jun
  • Kikuchi, Norio

Abstract

Provided are a steerage operation input member, a steerage operation input device, and a steering device that offer improved operability. The steerage operation input member comprises a shaft that rotates around an axis, a dial provided on the shaft, and a first arm and a second arm that are connected to the shaft and have a different length from the rotational center of the shaft than the dial.

IPC Classes  ?

  • B62D 1/04 - Hand wheels
  • B62D 5/04 - Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

72.

BRAKE TORQUE ESTIMATION DEVICE

      
Application Number JP2023043320
Publication Number 2024/122504
Status In Force
Filing Date 2023-12-04
Publication Date 2024-06-13
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Seto Shinji
  • Goto Daisuke

Abstract

The present invention provides a brake torque estimation device capable of accurately estimating brake torque at low cost. A brake torque estimation device (20) according to the present invention can be installed in a vehicle (10) having a plurality of wheels (7) with tires, and comprises a brake torque calculation unit (26) that calculates a brake torque (Tbi) of the wheels (7). A wheel speed (Vwi) of the wheels (7) and a longitudinal acceleration (ax), which is acceleration in the longitudinal direction of the vehicle (10), are input to the brake torque estimation device (20). The brake torque calculation unit (26) calculates a vehicle speed (Vb), a tire longitudinal force (Fxi) of the wheels (7), and a slip rate of the wheels (7) on the basis of the wheel speed (Vwi), a tire load (Fzi) of the wheels (7), the longitudinal acceleration (ax), and tire characteristics of the wheels (7), and calculates the brake torque (Tbi) on the basis of the calculated tire longitudinal force (Fxi).

IPC Classes  ?

  • B60T 8/171 - Detecting parameters used in the regulation; Measuring values used in the regulation
  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

73.

Trim and tilt device for marine vessel propelling machine

      
Application Number 29844705
Grant Number D1030608
Status In Force
Filing Date 2022-06-30
First Publication Date 2024-06-11
Grant Date 2024-06-11
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Sun, Xing
  • Tsutsui, Hayato
  • Taga, Naoya

74.

ELECTRONIC DEVICE AND POWER CONVERSION DEVICE

      
Application Number 18524763
Status Pending
Filing Date 2023-11-30
First Publication Date 2024-06-06
Owner
  • Hitachi Astemo, Ltd. (Japan)
  • HONDA MOTOR CO., LTD. (Japan)
Inventor
  • Kudo, Daiki
  • Tanabe, Yoshiharu
  • Nakano, Kohei
  • Nakade, Hiroyuki
  • Sasaki, Kenichi
  • Uneme, Takahiro
  • Wakabayashi, Ryuta

Abstract

An electronic device includes a supply refrigerant pipe that is connected to an opening end. The supply refrigerant pipe has a connection opening end that is directly connected to the opening end, a refrigerant pipe-side reduced diameter flow path in which flow path area decreases with increasing distance from the connection opening end, and a small diameter flow path connected to an end portion of the refrigerant pipe-side reduced diameter flow path on a side opposite to the connection opening end A main body case has, as parts of the refrigerant flow path, a case-side reduced diameter flow path in which flow path area decreases with increasing distance from the opening end, and a flat flow path formed in a shape flatter than the small diameter flow path and connected to an end portion of the case-side reduced diameter flow path on a side opposite to the opening end.

IPC Classes  ?

  • H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
  • H05K 7/14 - Mounting supporting structure in casing or on frame or rack

75.

COMMUNICATION DEVICE

      
Application Number 18552559
Status Pending
Filing Date 2022-03-01
First Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Fukuda, Ryo

Abstract

An object is to provide a communication device capable of appropriately storing communication information for specifying another device that performs communication at an abnormal timing. A communication device 10 is a communication device that is mounted on a vehicle and communicates with other devices. The communication device 10 includes a communication monitoring unit 40 that monitors communication with another device and accumulates communication information for specifying another device that performs communication, a storage medium 30 that stores the communication information, and a timer 22 that counts a duration of a wake-up state of the communication device 10. When the duration of the wake-up state has passed a predetermined time, the communication monitoring unit 40 stores the accumulated communication information in the storage medium 30.

IPC Classes  ?

  • H04W 52/02 - Power saving arrangements
  • H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

76.

OBJECT DISTANCE DETECTING DEVICE

      
Application Number 18552722
Status Pending
Filing Date 2022-02-15
First Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sai, Hirotomo
  • Irie, Kota
  • Yasukawa, Takakiyo

Abstract

An object distance detecting device includes: three imaging sections 101-1, 101-2, and 101-3 which image a same target object; a target object region specifying section 102 which specifies a region, in which the target object exists, on the basis of an image acquired from at least one of the imaging sections; an image selection section 103 which selects one base line direction among a plurality of base line directions defined by any two imaging sections among the imaging sections on the basis of an image of the region specified by the target object region specifying section 102, and selects an image of the region acquired from each of the two imaging sections defining the selected base line direction; and a distance detection section 104 which detects a distance to the target object existing in the region on the basis of the image selected by the image selection section.

IPC Classes  ?

  • G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

77.

FLOW RATE SENSOR

      
Application Number JP2022043732
Publication Number 2024/116230
Status In Force
Filing Date 2022-11-28
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ohta Kazuhiro
  • Onose Yasuo
  • Ishibashi Ken
  • Yogo Takayuki

Abstract

A flow rate sensor according to the present disclosure comprises a flow rate detecting unit 151 that detects the flow rate of a gas 2 to be measured. The flow rate detecting unit 151 includes: a semiconductor substrate 151a that has a cavity section 151b; a thin-film structure 151d provided adjacent to the cavity section 151b of the semiconductor substrate 151a; a heater element 151e and a pair of temperature measuring elements 151f that are provided to the thin-film structure 151d; and a metallic heat dissipation pattern 151g that is provided in the flow rate detecting unit 151 while being electrically insulated from the heater element 151e and the pair of temperature measuring elements 151f.

IPC Classes  ?

78.

INTAKE MANIFOLD DEVICE

      
Application Number JP2022043760
Publication Number 2024/116238
Status In Force
Filing Date 2022-11-28
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Arai Kazuki
  • Ikeda Takehide
  • Hitomi Noriyoshi

Abstract

This intake manifold device (10) comprises: an internal combustion engine-side member (16) that is fastened to an internal combustion engine (12); and a port member (18) that has a second connection part (52) connected to the internal combustion engine-side member (16) and is formed from a resin material. The internal combustion engine-side member (16) has a receiving part (28) that extends from an air passage part (24) toward another end. A port part (54) of the port member (18) has a support part (20). When a load (F) in the connection direction of a first and the second connection part (34, 52) acts on the port part (54), the support part (20) is supported by the receiving part (28), and the port part (54) is supported by the support part (20).

IPC Classes  ?

79.

CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

      
Application Number JP2022044013
Publication Number 2024/116284
Status In Force
Filing Date 2022-11-29
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Oryoji Kazuhiro
  • Akagi Yoshihiko

Abstract

A control device for an internal combustion engine according to the present invention is for an internal combustion engine provided with a variable capacity oil pump 20 capable of controlling a hydraulic pressure state, and is provided with a hydraulic pressure setting unit 17 that sets, for the variable capacity oil pump 20, a high hydraulic pressure period in which a high hydraulic pressure state is continued and a low hydraulic pressure period in which a low hydraulic pressure state is continued. In order to enable appropriate hydraulic pressure setting according to a load, the hydraulic pressure setting unit 17 sets the high hydraulic pressure period and the low hydraulic pressure period repeatedly in accordance with an engine operation state.

IPC Classes  ?

  • F01M 1/16 - Controlling lubricant pressure or quantity

80.

CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

      
Application Number JP2022044202
Publication Number 2024/116331
Status In Force
Filing Date 2022-11-30
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Ishikawa Hiroto
  • Matohara Shinya

Abstract

Provided is a control device 100 for an internal combustion engine that controls the internal combustion engine using a flow rate detection value from an airflow sensor that detects the air intake rate of the internal combustion engine, said control device comprising: an operational control unit 120, a ripple factor prediction unit 130, a permissible ripple factor output unit 140, and a limit target value output unit 110. The operational control unit 120 controls the operational state of the internal combustion engine on the basis of a control target value CTV of the internal combustion engine. The ripple factor prediction unit 130 outputs a predicted ripple factor PRe that predicts the ripple factor of the flow rate detection value on the basis of the control target value CTV. The permissible ripple factor output unit 140 outputs a permissible ripple factor PRa on the basis of a rotational speed ES that serves as the operational state of the internal combustion engine. If the predicted ripple factor PRe exceeds the permissible ripple factor PRa, the limit target value output unit 110 outputs a limit target value CTVr produced by changing the control target value CTV so as to lower the ripple factor. If the limit target value CTVr has been input, the limit target value output unit 110 controls the operational state of the internal combustion engine on the basis of the limit target value CTVr.

IPC Classes  ?

  • F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
  • F02D 41/18 - Circuit arrangements for generating control signals by measuring intake air flow
  • F02D 43/00 - Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
  • F02D 45/00 - Electrical control not provided for in groups

81.

DISC BRAKE

      
Application Number JP2023033161
Publication Number 2024/116541
Status In Force
Filing Date 2023-09-12
Publication Date 2024-06-06
Owner
  • HITACHI ASTEMO, LTD. (Japan)
  • HONDA MOTOR CO., LTD. (Japan)
Inventor
  • Zhang Xuesheng
  • Tsuchiya Yuta
  • Kihara Shinichi
  • Hirata Masahiko
  • Yadori Hikaru

Abstract

A pad spring (24) on a rotation entry side in a disc rotation direction has: a first support part (131) that elastically supports a friction pad (27) in the disc rotation direction; and a second support part (120) that is offset in a disc radial direction with respect to the first support part (131), covers a torque receiving part (60), and elastically supports the friction pad (27) in the disc rotation direction. One of the first support part (131) and the second support part (120) is in contact with the friction pad (27), and the other has a first state in which there is a gap (S) between the other support part and the friction pad (27), and a second state in which the gap (S) is filled by movement of the friction pad (27).

IPC Classes  ?

  • F16D 65/097 - Resilient means interposed between pads and supporting members

82.

SEMICONDUCTOR DEVICE, CONTROL DEVICE FOR TRANSMISSION, AND CONTROL METHOD OF ELECTRONIC CONTROL UNIT

      
Application Number 18279421
Status Pending
Filing Date 2021-09-10
First Publication Date 2024-06-06
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Komoriyama, Keishi
  • Kobayashi, Yoichiro
  • Migita, Minoru

Abstract

There is provided a power saving and highly reliable semiconductor device on which a switching power supply circuit and a driver circuit are mounted together, and which can perform appropriate control by the driver circuit even when a battery terminal is disconnected while reducing power loss in the entire semiconductor device. The semiconductor device includes: a first terminal which is connected to a battery power source; a switching power supply circuit which steps down a battery voltage input from the first terminal; a second terminal which is connected to a switching power source different from the battery power source; a regulator circuit which steps down a voltage input from the second terminal; and a predriver circuit which is connected to the regulator circuit.

IPC Classes  ?

  • H01F 7/06 - Electromagnets; Actuators including electromagnets
  • F16H 61/12 - Detecting malfunction or potential malfunction, e.g. fail safe
  • H02M 3/16 - Conversion of dc power input into dc power output without intermediate conversion into ac by dynamic converters

83.

Power Supply Control Device

      
Application Number 18285670
Status Pending
Filing Date 2021-08-20
First Publication Date 2024-06-06
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Yamamoto, Masafumi
  • Masubuchi, Takumi

Abstract

A power supply control device includes: a plurality of power supply circuits; a control circuit that controls the power supply circuits; an output current monitor that monitors output currents of the power supply circuits; and a storage unit in which any one of a plurality of operation modes for controlling the power supply circuits is settable. The control circuit controls the power supply circuits based on the operation mode set in the storage unit and the output currents monitored by the output current monitor.

IPC Classes  ?

  • H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
  • G11C 5/14 - Power supply arrangements

84.

Electronic Module

      
Application Number 18286145
Status Pending
Filing Date 2022-02-04
First Publication Date 2024-06-06
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Tanaka, Daisuke
  • Yamamoto, Hidetatsu

Abstract

To achieve an electronic module capable of reducing dark current, which is current flowing when the electronic module is turned off, and contributing to prevention of battery wear of a vehicle or the like. Therefore, the electronic module connected to a first electronic module via a communication line includes: a microcomputer; a power supply IC that supplies power to the microcomputer; a power supply control circuit that supplies power from a battery power supply to the power supply IC; a control line connected to the communication line; and a first switch circuit that connects the control line and the power supply control circuit.

IPC Classes  ?

  • G06F 1/26 - Power supply means, e.g. regulation thereof
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • H03K 17/56 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices

85.

VEHICLE CONTROL DEVICE

      
Application Number 18553619
Status Pending
Filing Date 2022-02-28
First Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Naito, Daiki

Abstract

An object of the present invention is to provide a vehicle control device capable of ensuring safety without giving a sense of discomfort to a passenger, by appropriately decreasing a target vehicle speed when a vehicle deviates from a target trajectory in order to prompt the vehicle to return to the target trajectory, and quickly resuming the target vehicle speed to an original speed when the possibility of re-deviation is low. A vehicle control device of the present invention is a vehicle control device that performs control for causing a vehicle to travel along a target trajectory at a target vehicle speed, the vehicle control device including: determining whether or not a vehicle 501 is in a deviated state in which the vehicle deviates from a target trajectory 502; calculating, when the vehicle is determined to be in the deviated state, a suppression amount by which the target vehicle speed is decreased based on a deviation amount indicating the deviated state; holding a maximum value of the suppression amount and suppressing the target vehicle speed using a hold value that has been held; and decreasing the hold value of the suppression amount at a predetermined speed when the vehicle returns from the deviated state to the target trajectory and a preset release condition is satisfied.

IPC Classes  ?

86.

MOTOR CONTROL DEVICE AND POWER CONVERSION SYSTEM

      
Application Number JP2022043754
Publication Number 2024/116236
Status In Force
Filing Date 2022-11-28
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Aoyagi Shigehisa
  • Tsukagoshi Takaya

Abstract

Provided is a motor control device that is able to reduce loss by controlling a current phase angle on the basis of a change feature amount of inductance. This motor control device is connected to a power converter that converts power from direct current power into three-phase alternating current power and drives a motor with the three-phase alternating current power, the motor control device controlling the power conversion of the power converter, wherein the motor control device comprises: an inductance change detecting unit that calculates an inductance change feature amount that represents a change in the inductance of the motor in a first phase region that includes a phase in which the absolute value of any of the three-phase alternating currents is the maximum; and a current phase angle control unit that controls the current phase angle on the basis of the inductance change feature amount.

IPC Classes  ?

  • H02P 21/22 - Current control, e.g. using a current control loop

87.

INTAKE MANIFOLD DEVICE

      
Application Number JP2022043759
Publication Number 2024/116237
Status In Force
Filing Date 2022-11-28
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Arai Kazuki

Abstract

An intake manifold device (10) comprises: an inlet passage (26) into which air (C) is introduced; an external gas introduction unit (20) that introduces an external gas (G) to the inlet passage (26); a surge tank (16) connected downstream of the inlet passage (26); and a turbulence generating string (22) that disturbs the flow of air (C) circulating in the inlet passage (26) to generate turbulent flow. The turbulence generating string (22) is disposed between the surge tank (16) an inlet opening (28) of the inlet passage (26) into which air (C) is introduced.

IPC Classes  ?

  • F02M 35/10 - Air intakes; Induction systems
  • F02M 25/08 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
  • F02M 26/19 - Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system

88.

ELECTRONIC SUBSTRATE UNIT AND BATTERY MONITORING SYSTEM

      
Application Number JP2022044199
Publication Number 2024/116330
Status In Force
Filing Date 2022-11-30
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Suzuki Jun
  • O Ei

Abstract

An electronic substrate unit that comprises an electronic substrate in which a circuit is formed and a wireless module which is mounted to the electronic substrate, and that is accommodated inside a housing of a battery pack, wherein the electronic substrate has a plurality of attachment parts for the wireless module, and the wireless module is provided in one-to-one correspondence with the electronic substrate and is attached to one of the plurality of attachment parts.

IPC Classes  ?

  • H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01Q 1/12 - Supports; Mounting means

89.

POWER CONVERTER CONTROL DEVICE AND POWER CONVERTER

      
Application Number JP2022044267
Publication Number 2024/116352
Status In Force
Filing Date 2022-11-30
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Sekiguchi Manabu
  • Suzuki Takami
  • Onishi Kohei

Abstract

This power converter control device controls a power converter for performing power conversion between a DC power supply and a motor and comprises: a magnetic flux command value generation unit that obtains a magnetic flux command value on the basis of a torque command value; a current command value generation unit that obtains, on the basis of the torque command value and the magnetic flux command value, a current command value for controlling the motor; and a current command value adjustment unit that adjusts the current command value on the basis of the torque command value, a rotation detection value indicating the rotational speed of the motor, and a DC voltage value indicating the output voltage of the DC power supply.

IPC Classes  ?

  • H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
  • H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters

90.

CURRENT DETECTION DEVICE AND POWER CONVERSION DEVICE

      
Application Number JP2022044604
Publication Number 2024/116410
Status In Force
Filing Date 2022-12-02
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Kato, Takeshi

Abstract

Provided is a current detection device comprising: a plurality of conductors connected to a plurality of power conversion circuits; a plurality of detectors that detect currents flowing through the respective conductors on the basis of magnetic fluxes generated by the currents flowing through the respective conductors; a plurality of first shield members that surround at least a part of the detectors and conductors for magnetic shielding thereof; and a second shield member that is placed opposite to the plurality of first shield members and covers the entire region of projection of the plurality of first shield members in a direction orthogonal to the direction of arrangement of the plurality of first shield members.

IPC Classes  ?

  • G01R 15/14 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

91.

ELECTROMECHANICAL BRAKING DEVICE

      
Application Number JP2023032354
Publication Number 2024/116525
Status In Force
Filing Date 2023-09-05
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Nomura, Daichi
  • Fujita, Haruhiko

Abstract

Provided is an electromechanical braking device that along with improving workability, improves installability in vehicles as well as outline designability, and enables commonizing of parts at a right–left pair of wheels. This electromechanical braking device is provided with power-supply connectors or sensor connectors that are utilized for supplying power to an electric motor and/or receiving input of signals from a detection sensor. The electromechanical braking device is configured to be attachable, to a vehicle body, as a pair of electromechanical braking devices for the right and left wheels. The power-supply connectors or sensor connectors are configured to be attachable, to the vehicle body, so as to be arranged with regularity. Due to this configuration, it is possible to improve workability, installability in vehicles, and outline designability, and commonize parts at a right–left pair of wheels.

IPC Classes  ?

  • B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive

92.

SHOCK ABSORBER AND DAMPING FORCE GENERATION MECHANISM

      
Application Number JP2023033353
Publication Number 2024/116546
Status In Force
Filing Date 2023-09-13
Publication Date 2024-06-06
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor Yamaguchi Yuta

Abstract

This shock absorber has: a cylinder in which a working fluid is sealed; a piston which is slidably fitted into the cylinder and partitions the inside of the cylinder into a first cylinder chamber and a second cylinder chamber; a first passage through which the working fluid flows out from one chamber inside the cylinder by means of a movement of the piston; a second passage provided in parallel to the first passage; valve mechanisms all of which act when the first cylinder chamber is at an upstream pressure and which are provided in the first passage and can adjust a damping force by means of the pressure of a main back pressure chamber; a frequency sensitive mechanism which is provided in the second passage and changes a volume by means of a movement of a movable member; check valves which are provided in the second passage, and all of which act when the second cylinder chamber is at the upstream pressure; and a first throttling mechanism which is provided downstream or upstream from the check valves and controls the flow of the working fluid toward the main back pressure chamber.

IPC Classes  ?

  • F16F 9/34 - Special valve constructions; Shape or construction of throttling passages

93.

Trim and tilt device for marine vessel propelling machine

      
Application Number 29844707
Grant Number D1029730
Status In Force
Filing Date 2022-06-30
First Publication Date 2024-06-04
Grant Date 2024-06-04
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Sun, Xing
  • Tsutsui, Hayato
  • Taga, Naoya

94.

Electronic Control Device and Electronic Control System

      
Application Number 18285116
Status Pending
Filing Date 2022-02-18
First Publication Date 2024-05-30
Owner Hitachi Astemo, Ltd. (Japan)
Inventor
  • Kogo, Kenji
  • Maeda, Koji

Abstract

An object of the present invention is to provide an electronic control device and an electronic control system capable of achieving power supply redundancy while suppressing an increase in number of wirings. The present invention is an electronic control device 1 including a data processing circuit that performs data communication with one or more another electronic control devices, the electronic control device 1 including: a power source terminal 105 connected to a first power source 60; a first data terminal 101a to which a first external data line is connected; and a power source selection circuit that has an input side to which the power source terminal 105 and the first data terminal 101a are connected and an output side to which the data processing circuit 100 is connected, selects any one with a higher potential of power from the power source terminal 105 and the first data terminal 101a on the input side, and connects the selected one to the data processing circuit on the output side.

IPC Classes  ?

  • G06F 1/26 - Power supply means, e.g. regulation thereof
  • B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
  • H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers

95.

VEHICLE CONTROL DEVICE

      
Application Number 18553288
Status Pending
Filing Date 2022-02-28
First Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Saito, Takayuki
  • Seimiya, Masashi
  • Takahama, Taku
  • Takeuchi, Keisuke
  • Tsurumoto, Yuta
  • Ishii, Seiya

Abstract

An object of the present invention is to provide a vehicle control device capable of improving ride comfort of a driver. A lane change detection unit 205 of a vehicle control device 200 determines a possibility of cut-in of an adjacent vehicle immediately in front of an own vehicle on the basis of an adjacent vehicle relationship value (for example, a relative speed between the own vehicle and the adjacent vehicle) in an advancing direction. An acceleration/deceleration control unit 206 corrects acceleration/deceleration of the own vehicle on the basis of the possibility of the cut-in determined on the basis of the adjacent vehicle relationship value in the advancing direction.

IPC Classes  ?

  • B60W 30/14 - Cruise control
  • B60W 30/16 - Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
  • G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
  • H04W 4/46 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]

96.

ROTARY ELECTRIC MACHINE

      
Application Number JP2022042985
Publication Number 2024/111020
Status In Force
Filing Date 2022-11-21
Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Aoki, Hiroshi
  • Kitahara, Motoo

Abstract

The present invention provides a rotary electric machine comprising an outer housing that is disposed on the radially outward side of a stator core and that accommodates said stator core, and an inner housing that is disposed between the stator core and the outer housing and that accommodates the stator core, wherein: the inner housing has a refrigerant flow path in the axial direction of the interior, holds the outer housing on the radially outer side, and holds the stator core on the radially inner side; and the coefficient of linear expansion of the inner housing is greater than the coefficient of linear expansion of the outer housing.

IPC Classes  ?

  • H02K 5/02 - Casings or enclosures characterised by the material thereof

97.

IN-VEHICLE CHARGING SYSTEM

      
Application Number JP2022043419
Publication Number 2024/111098
Status In Force
Filing Date 2022-11-24
Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Okuda, Yuki
  • Miyamoto, Shogo
  • Sato, Yasuaki
  • Okada, Takashi
  • Ooiwa, Hiroyuki

Abstract

This in-vehicle charging system charges a battery mounted on an electric vehicle by power supplied from a home and comprises: an outside world recognition unit that is mounted on the electric vehicle and detects information outside the electric vehicle; an information acquiring unit that acquires the device information of electric devices provided in the home; a power consumption estimation unit that calculates, on the basis of the outside world information and the device information, the power consumption estimation value of the electric devices provided in the home during battery charging time; and a charging power determination unit that determines a battery charging plan on the basis of the power consumption estimation value. The charging power determination unit determines the charging plan so that the sum of battery charging power and the power consumption estimation value becomes less than the upper limit value of the power consumable in the home.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

98.

POWER SEMICONDUCTOR DEVICE

      
Application Number JP2023030625
Publication Number 2024/111190
Status In Force
Filing Date 2023-08-24
Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Tanaka, Shintaro
  • Tokuyama, Takeshi
  • Nagasaki, Hironori
  • Asai, Kyota
  • Shimura, Takahiro

Abstract

According to the present invention, a power conversion device is provided with: a plurality of upper arm-side power semiconductor elements and a plurality of lower arm-side power semiconductor elements; a first conductor and a second conductor, which are connected to the upper arm-side power semiconductor elements; and a third conductor and a fourth conductor, which are connected to the lower arm-side power semiconductor elements. An upper arm-side junction part is formed at a position that is at the same distance from the plurality of upper arm-side power semiconductor elements; a lower arm-side junction part is formed at a position that is at the same distance from the plurality of lower arm-side power semiconductor elements; and the upper arm-side junction part and the lower arm-side junction part are formed adjacent to each other in a region between the array of the plurality of upper arm-side power semiconductor elements and the array of the plurality of lower arm-side power semiconductor elements.

IPC Classes  ?

  • H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices the devices being of types provided for in two or more different subgroups of the same main group of groups , or in a single subclass of ,

99.

APPEARANCE INSPECTION DEVICE AND METHOD FOR GENERATING APPEARANCE INSPECTION IDENTIFIER

      
Application Number JP2023046549
Publication Number 2024/111678
Status In Force
Filing Date 2023-12-26
Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Seki, Takateru
  • Onozuka, Hideaki
  • Ichinose, Masatoshi
  • Watanabe, Takashi

Abstract

Provided are an appearance inspection device and a method for generating an appearance inspection identifier that improve the assessment precision of inspections. An appearance inspection device according to the present invention generates at least one simulated image that approximates an appearance inspection assessment standard for conforming articles and non-conforming articles on the basis of a non-conforming article image that includes a defect for which a non-conforming article determination would be made during appearance inspection. The appearance inspection device comprises: a storage unit that stores boundary learning results obtained by machine learning of the boundary between conforming articles and non-conforming articles using pairs of a non-conforming article image and a simulated image or pairs of two simulated images; and an inspection unit that inspects the surface of an object under inspection on the basis of the boundary learning results.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G06N 20/00 - Machine learning
  • G06T 7/00 - Image analysis
  • G06V 10/778 - Active pattern-learning, e.g. online learning of image or video features

100.

IN-VEHICLE CAMERA CALIBRATION DEVICE, CONTROL DEVICE, AND PATTERN WITH BEACON

      
Application Number 18553258
Status Pending
Filing Date 2022-03-09
First Publication Date 2024-05-30
Owner HITACHI ASTEMO, LTD. (Japan)
Inventor
  • Morishima, Kenta
  • Yamada, Tetsuya

Abstract

The present disclosure provides an in-vehicle camera calibration device, a control device, and a pattern-with-a-beacon capable of performing calibration of a camera mounted on a vehicle more accurately and easily. The in-vehicle camera calibration device 100 includes a control device 110 to be mounted on a vehicle 200 and a pattern-with-a-beacon 120 to be installed outside the vehicle 200. The pattern-with-a-beacon 120 includes a calibration pattern 121 captured by the camera 201 mounted on the vehicle 200 at the time of calibration, and a beacon 122 that transmits beacon information Ib by wireless communication. The control device 110 calibrates the camera 201 based on the pattern image Gp that is the image of the calibration pattern 121 acquired from the camera 201 and the beacon information Ib received through the receiving antenna 202 mounted on the vehicle 200.

IPC Classes  ?

  • G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
  • G01C 21/36 - Input/output arrangements for on-board computers
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