The invention relates to a computer (4) comprising a hardware interface (100), characterised in that the hardware interface (100) includes a first resistor (110) with a first pin (110_1) of the first resistor and a second pin (110_2) of the first resistor, a second resistor (120) with a first pin (120_1) of the second resistor and a second pin (120_2) of the second resistor, a transistor (130) and a comparator (140); the first pin (110_1) of the first resistor being coupled to the first hardware interface pin (100_1) as well as to a first transistor pin (130_1).
Sensor (20, 20') for supplying a piece of detection information in the form of a variation in a current, comprising a sensing portion (22, 22') suitable for detecting the passage of a moving target, an electronic module (24, 24') capable of controlling and shaping signals from the sensing portion (22, 22'), an on-board intelligence module (26, 26') suitable for, inter alia, receiving information from an electronic processor (4) and for processing and generating information intended for the electronic processor (4), characterised in that the sensor (20, 20') comprises a module for generating a random number (28, 28') which is capable of generating a random number.
G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
3.
DETECTION OF ROAD SPEED REDUCERS BY MEANS OF AUTOMATIC LEARNING
The present invention relates to methods (100, 300) and to a set of computer programs for detecting the passage of a road vehicle on a road speed reducer. The general principle of the invention is based on the detection of the passage of a road vehicle on a road speed reducer by means of automatic learning (in English "machine learning").
B60W 40/10 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to vehicle motion
B60W 40/12 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to parameters of the vehicle itself
G07C 5/02 - Registering or indicating driving, working, idle, or waiting time only
G08G 1/01 - Detecting movement of traffic to be counted or controlled
G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
4.
FLEXIBLE NON-MAGNETIC AND METALLIC TARGET FOR AN INDUCTIVE SENSOR
The present invention relates to an assembly of a non-magnetic and metallic target (40) for an inductive sensor and its support (1), the target (40) being flexible under pressure and release of said pressure, in a reciprocating movement towards and away from the support (1). The target (40) comprises a central portion (2) surrounded by flexible fixing tabs (4), a first end (4a) of which is secured to the central portion (2) and a second end (4b) of which is fixed to the support (1), the fixing tabs (4) being evenly distributed around the central portion (2), a first portion (4c) of each fixing tab (4) closest to the central portion (2) being stiffer relative to a portion (4d) of the fixing tab (4) farthest away from the central portion (2).
Current source sensor (20, 20') that is designed to deliver detection information in the form of an intermediate signal by selectively applying a low-level or high-level current to a communication bus (30) depending on the passage of a mobile target, the sensor comprising a sensitive portion (22, 22') designed to detect the passage of the mobile target, an electronic module (24, 24') able to control and shape the signals coming from the sensitive portion (22, 22'), an embedded intelligence module (26, 26') designed, inter alia, to receive information from another sensor (20, 20') through a first signal present on the communication bus (30), the first signal being the sum of the abovementioned intermediate signal generated by the sensor (20, 20') and another intermediate signal generated by the other sensor (20', 20), wherein the embedded intelligence module (26, 26') is designed to modify a first low level and a first high level of the intermediate signal, respectively, into a second low level and into a second high level depending on the first signal.
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 21/00 - Measuring or testing not otherwise provided for
6.
METHOD FOR ESTIMATING THE DISTANCE SEPARATING AN AUTHENTICATION DEVICE AND A MOTOR VEHICLE
The present invention concerns a method for estimating the distance separating an authentication device (20) from a vehicle (10), in particular a motor vehicle, the vehicle (10) comprising a computer and a plurality of communication modules capable of communicating with the device (20) by exchanging signals on a wireless communication link (L1), each communication module comprising an electronic clock that defines the sampling frequency at which the signals received from the device (20) are sampled. The method comprises a plurality of measurement phases each comprising a determination, by the computer, of the distance separating the vehicle (10) and the device (20) and a stop and restart of the electronic clock, and an estimation of the actual distance separating the vehicle (10) and the device (20) based on the plurality of distances determined during the measurement phases.
Method for controlling an engine control unit which includes at least two microprocessor cores, including steps of executing a parent subtask (FA1, FB1) and at least one child subtask (FA2, FB2). The method includes the following steps: - determining the number of executables (R) that are still to be executed in the last child subtask (FA2) in the first period (9A) when the parent subtask (FB1) in the second period (9B) starts; - determining the number of executables (R) that have already been executed in the parent subtask (FB1) in the second period (9B) when the last child subtask (FA2) in the first period (9A) ends.
122) the measured temperature value with a second threshold if the measured temperature has increased by a value greater than or equal to a threshold difference or, if the measured temperature value is greater than or equal to the second threshold and greater than or equal to a third threshold or greater than or equal to a second threshold during a second time interval, detecting (E7) a risk of blowout of the tyre.
The invention relates to a handle (6) for a motor vehicle opening element (8), said handle being equipped with an ultra-high-frequency antenna (2) with means for transmitting and receiving a signal at a predetermined wavelength (λ), a device for detecting the approach and/or contact of a user, a printed circuit board (3) and at least one connection cable (7) intended for electrically connecting the printed circuit board (3) to an electronic control unit (15). Said at least one connection cable (7) has a section (9, 9a) either projecting from the rest of said at least one connection cable (7) or surrounded by an electromagnetically insulating coating (16) coaxial to said at least one connection cable (7), a length of the projecting section (9) or a length of the coaxial coating (16) being equal to one quarter of said predetermined wavelength (λ) with a tolerance of +/-20%.
The invention concerns a method for controlling an injector in a common rail system comprising the following steps: detecting (E2) an increase between an observed static flow rate and a reference static flow rate and determining (E3) a corrected rail pressure setpoint (Pcor) ensuring the same quantity of fluid injected with the observed static flow rate as that injected with a reference pressure (Pref) and the reference static flow rate. The invention therefore advantageously helps keep the same period of injection.
A method for determining the distance between an authentication device carried by a user, and a motor vehicle (100), each comprising a wireless communication module (50) in order to exchange a data frame, said data frame being modulated by changing the phase of a reference signal (S). The method comprises the steps of a modulated reference signal (S) sent by the device being received by the vehicle, of demodulating the received signal (S) in order to extract therefrom a component in phase (I) and a component in quadrature (Q), of calculating the power value of the signal (S) on the basis of the value of maximum amplitude of the component in phase (I) and of the value of maximum amplitude of the component in quadrature (Q), and of determining the distance between the device and the vehicle on the basis of the calculated power value.
The subject matter of the present invention is a method for estimating the distance separating a vehicle and an authentication device, said vehicle comprising a computer and a plurality of communication modules capable of communicating with said device over a wireless communication link, each communication module comprising an electronic clock that defines the sampling frequency of the signals received from the device. The method particularly comprises steps of adding (E8) noise to a response signal received from the device, sampling (E9) the noisy response signal, detecting (E10), at a second instant, the noisy response signal when the amplitude of said noisy response signal exceeds a predetermined detection threshold, computing (E12) the elapsed time between a first instant and the second instant and estimating (E13) the distance between the vehicle and the device on the basis of the computed time.
The present invention concerns a method for characterising the curvature of a section of road, comprising the steps of: a) selecting, from the points of the section, the points marking a curvature of the section, b) calculating, for each selected point of the section lying between the second and the penultimate, a section curvature indicator at this point, the section curvature indicator at a point being equal to the variation in the angle of the section at the current selected point, divided by the distance between the current selected point and the previous selected point, c) identifying each bend lying within the section of road, each bend comprising a set of selected points of the section in succession, and d) for each bend lying within the section of road, comparing the curvature indicator of at least one of the points of the bend with a predetermined threshold, and e) if the curvature indicator calculated for at least one of the selected points of the bend exceeds the predetermined threshold, recording, in a database of bends, a set of data comprising at least all the points of the bend, and a piece of characterisation data characterising the curvature of the bend. A bend warning device for a vehicle driver is also disclosed.
B60W 50/14 - Means for informing the driver, warning the driver or prompting a driver intervention
G01C 21/32 - Structuring or formatting of map data
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
The subject of the present invention is computer systems (100) and methods (300) for updating and/or completing a digital road map (200) by crowdsourcing. The general principle of the invention is based on generalizing the geolocation systems which are incorporated within the majority of current road vehicles. The invention takes advantage thereof and uses signals collected by these geolocation systems to update and/or complete a digital road map by crowdsourcing. In particular, the collected data make it possible to extract data on geographic routes associated with vehicles traveling the road network and: - to extract, for each geographic route, a trajectory curve that passes substantially through all of the measurements of the geographic route; to detect the inflection points on each trajectory curve, referred to hereinafter as vertices; - to group all of the vertices together into a plurality of vertex classes, using an unsupervised classification algorithm; - to select the centermost vertex from each vertex class, referred to hereinafter as representative; - to form, from each geographic route, a route segment between representatives which successively intersect the path of the geographic route when they are taken pairwise.
The present invention relates to a method for determining a state of alertness of a driver in a vehicle (1) using a predetermined image analysis algorithm. The method comprises, in particular, a step of executing the predetermined algorithm on the generated sequence of images in order to detect a series comprising at least one movement of the head of the driver (2), a step of determining the speed and/or amplitude of each identified movement as well as dynamic and static periods of the head of the driver, a step of detecting dynamic and static periods of the head of the driver and of measuring the frequency and duration of each period and a step of determining a state of alertness of the driver (2) using the speed and/or amplitude determined for each identified movement and the frequency and duration of each detected period.
The present invention relates to a method for determining a drowsiness level of a motor vehicle driver based on a predetermined algorithm for analysing images, the vehicle comprising a camera (11) and a processor (12), the processor (12) carrying out the predetermined algorithm based on a set comprising at least one parameter relating to the attitude of the driver, the method, which is carried out by the processor (12), comprising a phase of learning (PH1) and a phase of surveillance (PH2) of the state of the driver.
G08B 21/06 - Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
G08B 29/18 - Prevention or correction of operating errors
G08B 29/20 - Calibration, including self-calibrating arrangements
A61B 5/18 - Devices for psychotechnics; Testing reaction times for vehicle drivers
B60K 28/06 - Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
17.
METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE WITH LEARNING OF ATMOSPHERIC PRESSURE
Method for controlling an internal combustion engine provided with a crankshaft position sensor, an admitted-air pressure sensor and a fresh air intake throttle valve, comprising the following steps: • determining the rotational speed of the internal combustion engine as a function of the derivative of the position of the crankshaft with respect to time, • determining the intake-air pressure for a first position of the crankshaft corresponding to 180° before combustion top dead centre, • determining the intake-air pressure for a second position of the crankshaft corresponding to 390° before combustion top dead centre, • determining an atmospheric pressure learning pressure threshold as a function of the rotational speed of the internal combustion engine, • determining whether the difference between the intake-air pressure for the first crankshaft position and the intake-air pressure for the second crankshaft position is below the atmospheric pressure learning pressure threshold, • if so, commanding the learning of the atmospheric pressure by applying a first-order filter to the intake-air pressure for the second position of the crankshaft, and • controlling the internal combustion engine according to the learned value of the atmospheric pressure.
The present invention relates to a method for managing frames in a computer providing an operational function and a gateway function between two communication buses in order to transmit messages from a transmitter to a receiver, comprising the steps of: a. receiving (401) messages from a transmitter via the first bus; b. storing (402) the received messages; c. triggering (403) an interruption of the execution of an operational program causing the processing of the stored messages for transmission to the receiver via the second bus; d. deactivating (405) the interruption in order to continue the execution of the functional program, after the expiry (404) of a duration (D1) and at the end of the processing of a message being processed during said expiry; and, e. triggering (407) a new interruption at the end (406) of a timer of a duration (D2) of the execution of the operational program causing the continuation of the processing of stored messages for transmission to the receiver via the second bus.
The invention relates to a method for anticipating the appearance of smooth combustion in a heat engine. An angular range (F) for detection is split into a plurality of intervals (I) with an identification of the interval (Iid) in which the pre-ignition phenomenon is detected, the identified interval (Iid) being localised in relation to the lower bound (Bi) of the range or in relation to at least one preceding interval for which a pre-ignition phenomenon had been previously detected. When a first increment, representative of the localisation of the identified interval (Iid) in relation to the lower bound (Bi) and increasing near the lower bound (Bi), is greater than a first incrementing threshold or when a second increment, increasing in proportion to the difference in distance from the lower bound (Bi) between the preceding interval and the identified interval (Iid), is greater than a second incrementing threshold, the appearance of smooth combustion is anticipated.
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
G01L 23/22 - Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
The invention relates to a voltage converter (1) receiving as input a primary DC voltage (2) that is variable within in a large voltage range, and outputting a first regulated secondary DC voltage (3) and a second non-regulated secondary DC voltage (4), comprising a buck converter with a choke coupled to two outputs (5), characterized in that it further comprises a boost converter (6) arranged upstream from the buck converter (5) suitable for raising the primary voltage (2) when activated and a charge pump module (7) arranged between the second secondary voltage (4) and the first secondary voltage (3) suitable for balancing the loads when activated, the activation of the boost converter (6) and of the charge pump module (7) being simultaneous.
H02M 3/158 - 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
21.
ELASTICALLY DEFORMABLE INFLATION VALVE WITH A NON-AXISYMMETRIC VALVE BODY STEM
"snap-in""snap-in" inflation valve, in which the shape of the cross-section of the metal stem (302), in a longitudinal portion of the valve body that comprises a groove allowing it to be forcibly inserted into an opening in the rim, is a shape comprising at least two different radii of curvature respectively on two different sections of its circumference. In particular, the value of one of the two radii of curvature is greater than the distance between the longitudinal axis (209) passing through the centre of the valve and the outer casing (201) of the stem.
The subject of the invention is a method of demodulation of a multiplexed stereophonic signal (S(f)), the signal comprising a signal, termed sum signal (G+D), a signal, termed difference signal (G-D), and a pilot signal, the method comprising the following steps: eliminating the pilot frequency from the multiplexed stereophonic signal (S(f)), the resulting signal being called pilotless signal (S2(f)), and subtracting the sum signal (G+D) from the pilotless signal (S2(f)).
H04H 40/45 - Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving
23.
METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE FOR HEATING FUEL
Method for controlling an internal combustion engine provided with a fuel pump (1) equipped with a digital intake valve (2), comprising the following steps: - the fuel pump (1) is put into heating mode by commanding the closure of the digital intake valve (2) and then by commanding the setting in rotation of the fuel pump (1) at a predetermined rotational speed, - when a predetermined time has passed, the fuel pump (1) is put into fuel injection mode so as to increase the pressure in the injection common rail in order to inject fuel for starting the internal combustion engine.
Method for controlling an internal combustion engine equipped with fuel injectors connected to a fuel supply rail supplied with fuel by a fuel pump, the internal combustion engine being controlled according to an operating-point setpoint, the method comprising the following steps: - determining whether a new operating-point setpoint different from the ongoing operating-point setpoint has been received If it has, determining the maximum capacity of the pump according to determined values for the rotational speed of the internal combustion engine, for the quantity of fuel injected and for the fuel pressure in the injection common rail, - determining the rate of fuel consumption of the vehicle - subtracting the rate of fuel consumption of the vehicle from the maximum capacity of the pump in order to obtain the remaining capacity of the fuel pump, - determining the difference in the fuel delivery rate between the ongoing operating point and the operating point for the new operating-point setpoint, and if the remaining capacity of the fuel pump is less than the difference in fuel delivery rate, a reduced fuel delivery rate gradient setpoint is emitted with the new operating-point setpoint or the quantity of fuel injected is limited.
F02D 41/38 - Controlling fuel injection of the high pressure type
F02M 63/02 - Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02M 59/00 - Pumps specially adapted for fuel-injection and not provided for in groups
F02D 41/22 - Safety or indicating devices for abnormal conditions
25.
REDUCING AGENT METERING MODULE WITH HEAT TRANSFER COATING
The invention relates to a metering module (1) for a reducing agent intended for a selective catalytic reduction post-treatment for a vehicle, said module comprising: - a body (2) in which the reducing agent circulates, said body (2) comprising a first compartment (7) and a second compartment (11) separated by a sealed partition (9); and - a heating shell (12) partially surrounding the body (2) in the first compartment. The body (2) comprises a heat transfer coating (19) made of a thermoplastic elastomer material with a thermal conductivity of at least 3 watts per meter-kelvin, this heat transfer coating (19) comprising: - a first portion (18) arranged between the heating shell (12) and the body (2); - a second portion (20) partially surrounding the body (2) in the second compartment; and - thermal bridges (21) passing through the sealed partition (9) and connecting the first portion (18) to the second portion (20).
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
The invention relates to a printed circuit board (1) comprising electronic components (3), a substrate (2) provided with an array of conductor tracks (4) electrically connecting said electronic components (3) and a strain gauge (5A, 5B, 5C).
G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
G01L 1/20 - Measuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
G01L 1/22 - Measuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
The invention relates to a multilayer printed circuit board (1) comprising a control circuit (1a) including n vias (3) that are connected in series between a first (4a) and a second (4b) electrical terminal so that an applied electric current flows at least partially through each of the n vias (3). The control circuit (1a) comprises track portions (20a to 23a; 20b to 23b) in each of the layers (10 to 13), each of the n vias (3) connecting a track portion of one layer to a track portion of another layer. The control circuit (1a) comprises means (6) for measuring a difference in potential across its terminals, means for storing a threshold value and means for comparing the difference in potential with the threshold value so as to validate the printed circuit board (1) if the difference in potential is below the threshold value.
The invention relates to a module (1) for metering a reducing agent intended for a selective catalytic reduction post-treatment for a vehicle, said module comprising: • a body (2) in which the reducing agent circulates; • a heating shell (4) at least partially surrounding the body (2); • at least one hydraulic coupling (3) in fluidic communication with the body (2); and • an elastic thermal bridge (17) between the heating shell (4) and the hydraulic coupling (3).
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
The present invention relates to an authentication reader (1B-1) intended for installation on a motor vehicle door, said reader (1B-1) comprising a microcontroller (10B), at least one transmitter (20B), at least one matching circuit (30B-1) and a single antenna, referred to as the "primary" antenna (L4), characterised by an operating frequency. The matching circuit (30B-1) comprises switching means (M1) able to switch said matching circuit (30B-1) between a first mode, in which the matching circuit (30B-1) makes it possible to match the primary antenna (L4) to a secondary antenna of an authentication device whose resonant frequency is lower than the operating frequency, and a second mode, in which the matching circuit (30B-1) makes it possible to match the primary antenna (L4) to a secondary antenna of an authentication device whose resonant frequency is higher than the operating frequency.
H03J 5/24 - Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
30.
METHOD FOR SYNCHRONISING AN INTERNAL COMBUSTION ENGINE
The present invention relates to a method for synchronising an engine comprising at least one movable piston of a four-stroke internal combustion engine, the method comprising a first step (e1) of initialising a second memory space, a second step (e2) of waiting for an edge on a fourth signal (CAM_TOT), a fourth step (e4) of testing the value of a counter (CPT), an eighth step (e8) of selecting the theoretical angular positions of the slots of the second signal (CAM_IN) relative to the edges of a first signal (CRK), and of the slots of a third signal (CAM_EX) relative to the edges of the first signal (CRK).
The present invention relates to a toothed wheel (1) for a camshaft, which forms a target for a camshaft position sensor, the toothed wheel comprising a circular body which comprises two opposite main faces, and at least six teeth distributed over the circumference of the circular body, each tooth having two edges, one corresponding to a rising edge and the other to a falling edge, according to a direction of rotation of the wheel, wherein the toothed wheel has a revolution asymmetry, characterized in that the six teeth are shaped in such a way that the toothed wheel comprises, when considering the same main surface (11A) and a same rotational direction of the wheel: - four edges (14) of a same first rising or falling type, which are spaced apart by 90°, respectively, and - six edges (15) of the same second respectively rising or falling type, which are spaced apart by 60°, respectively.
G01D 5/14 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/246 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains by varying the duration of individual pulses
G01D 5/247 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using time shifts of pulses
G01M 15/06 - Testing internal-combustion engines by monitoring positions of pistons or cranks
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
The invention relates to a method for processing signals from a crankshaft sensor (1), comprising the following steps: detection of an engine stoppage, simulation and transmission of a backward square wave (8), simulation and transmission of a forward square wave (9). The invention also relates to a processing module (6) configured to carry out such a method.
The present invention relates to a method for transmitting data frames, implemented by a gateway connecting a transmitter communication network and a receiver communication network. The method comprises a step of receiving (E1) a data frame sent by the transmitter communication network, said data frame comprising a source identifier of said transmitter communication network, a step of generating (E2) a priority index, representative of the priority level of the transmission of the data frame, from the source identifier, a step of registering (E3) the payload data in a registration table on the basis of the priority index, so as to rank the payload data according to its priority level, and a step of providing (E5) the registered payload data to the receiver communication network when the payload data has the highest priority level in the registration table.
The present invention relates to a method for selecting, using a first node, a data frame in order to transmit same on a communication network connecting first said node to a plurality of second nodes. The method comprises transmission (E1), on the communication network, of the priority level of the data frame to be transmitted, reception (E2) of the priority level of the data frame to be transmitted by each of the second nodes, comparison (E3) of the received priority levels with the priority level of the data frame to be transmitted, and, when the priority level of the data frame to be transmitted is not the highest with respect to the priority levels of the data frames to be transmitted by the second nodes, comparison (E4) of the priority level of all of the data frames to be transmitted by the first node and, following said comparison, selection (E5) of the highest-priority data frame to be subjected by the first node to the next arbitration phase.
The present invention relates to a method for controlling the powertrain of a motor vehicle between the current location of the vehicle and a destination point, comprising calculating (E2) a theoretical optimal traction force, determining (E3) a friction force applied to the vehicle, calculating (E4) an actual optimal force to be applied to the wheels up to the destination point and applying (E5A) a traction force to the wheels of the vehicle when the calculated actual optimal force is strictly greater than a predetermined threshold, or either not applying (E5B) a force to the wheels of the vehicle when the calculated actual optimal force is greater than or equal to zero and less than or equal to the predetermined threshold or applying (E5C) a braking force to the wheels of the vehicle when the calculated actual optimal force is strictly less than zero.
B60W 40/10 - Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit related to vehicle motion
G05D 1/02 - Control of position or course in two dimensions
The present invention relates to a sensor (1) for detecting the presence of a user device by near-field communication for a motor vehicle, the sensor (1) comprising an antenna (50), an impedance adapter (40), an antenna control module (20), and a microcontroller (50) configured to control the control module (20), the impedance adapter (40) being capable of adapting the output impedance of the control module (20) to the impedance of the antenna (50) while amplifying the power supplied by the control module (20). The sensor (1) comprises a resistive module (30) which is mounted between the control module (20) and the impedance adapter (40) and configured to stabilise the the value of the input power of the impedance adapter (40).
The present invention relates to a method for controlling a vehicle heat engine speed, the engine comprising at least one combustion chamber, into which a mixture of air and fuel is injected, and an air box, configured to inject air into the combustion chamber and having an air flow controlled by a regulating butterfly valve, the regulating butterfly valve having a variable angular position, controlled by a predetermined position of an actuator. The method comprises the steps of evaluating (E1) a so-called "load" resistant torque resulting from a plurality of external loads applied to the engine, determining (E2), from the calculated load resistant torque, a position of the actuator, so as to determine an angular position of the regulating butterfly valve, and controlling (E3) said position of the actuator, so as to control the engine speed.
The invention relates to a method for synchronising a motor vehicle combustion engine. The method comprises the steps detecting (E1) the reference position of a first toothed wheel during a rotation of the crankshaft from the measurements sent by a first measurement sensor, detecting (E2) a plurality of rising and falling edges of the teeth of a second toothed wheel during a concomitant rotation of the camshaft from the measurements sent by a second measurement sensor, identifying (E3) the detected edges with a first tolerance threshold on the angular position of the camshaft from recorded positions of these edges in order to synchronise the engine, the recorded positions having been predetermined by learning from theoretical positions with a second tolerance threshold on the angular position of the camshaft, the first tolerance threshold being lower than the second tolerance threshold, and synchronising (E4) the engine based on the identified edges of the teeth of the second toothed wheel.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F01L 1/00 - Valve-gear or valve arrangements, e.g. lift-valve gear
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
Method for supplying an inductive load (12) using an H-bridge supply structure (2) comprising a first block B1 of the steps allowing anomaly detection using a "DIAG ON" diagnostic method, a second block B2 of steps allowing anomaly detection using a "DIAG OFF" diagnostic method and lastly a third block B3 of steps allowing the detected anomaly to be differentiated and a short-circuit type anomaly in the inductive load (12) to be confirmed.
The present invention concerns a method for controlling the speed of an engine driving a disengageable device. The engine speed is controlled according to a first mode when the disengageable device is disengaged and according to a second mode when the disengageable device is engaged. The engaged or disengaged state is determined by implementing the following steps: - estimating the resistive torque applied to the engine by the disengageable device, - switching a binary value from a first value representative of the disengaged state to a second value representative of the engaged state when the estimated resistive torque is higher than a first predetermined threshold for a first predetermined time period, and - switching the binary value from the second value to its first value when, during a second predetermined time period, the estimated resistive torque is lower than a second threshold that may be equal to the first threshold.
The present invention relates to a method for controlling a DC/DC voltage converter for the current control of at least one fuel injector of a heat engine of a motor vehicle, the vehicle comprising a power supply battery and the converter comprising a coil and a switch. The method comprises the steps of measuring (E1) the value of the voltage delivered by the battery, determining (E2) a threshold value of the current passing through the coil using the measured value of the voltage and a predetermined curve of the current as a function of the voltage, and controlling (E3) the opening of the switch when the current passing through the coil attains the determined threshold value of the current in order to adjust the power of the converter.
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
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
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
Disclosed is a device for supplying an inductive load (12) comprising an H-bridge switching structure (2), the switching structure being capable of controlling a current in the inductive load (12) through a first control output (8) and a second control output (10), means for detecting anomalies suitable for generating anomaly detection information at the switching structure (M1-M4), the means for detecting anomalies comprising a first voltage generator (14), a second voltage generator (16), a first current measurement device (18), a second current measurement device (22) suitable for measuring a current at the output of the second voltage generator (16), a third current measurement device (26), a fourth current measurement device (28), a fifth current measurement device (30), a sixth current measurement device (32), the current measurement devices being suitable for respectively measuring the currents of the switches.
The present invention relates to a device (D') for detecting intention to lock or unlock a door (P) of a vehicle, comprising: • a first capacitive sensor comprising a first electrode (EA), able to detect the approach and/or contact of a human body part in a predetermined zone (Z2) around the handle (10'), • control means (MA) for controlling said first sensor, generating a first approach and/or contact detection signal (NA), the invention providing: • a second capacitive sensor comprising a second electrode (EB), able to detect the approach of a human body part in the predetermined zone, such that: - the first electrode (EA) and the second electrode (EB) each take the form of separate segments that are connected electrically to one another, - said segments of the first electrode and the second electrode are alternately juxtaposed, • control means (MB) for controlling said second sensor generate a second approach and/or contact detection signal (NB), • correlation means (Mc) calculate a correlation value between the first signal and the second signal, • validation means (MD) compare said correlation value with a predetermined value in order to detect the intention to lock or unlock the door.
G07C 9/00 - Individual registration on entry or exit
E05B 81/78 - Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by handles as part of a hands-free locking or unlocking operation
H03K 17/955 - Proximity switches using a capacitive detector
The present invention relates to a method for detecting a clogging of an air filter, comprising the following steps when the air passage section in an intake manifold is greater than a predetermined passage section: - measuring a pressure in the intake manifold at the end of an air intake phase in a cylinder, - measuring a pressure in the intake manifold at the end of the exhaust phase in a cylinder, - determining the clogging of the air filter according to a comparison made between, on the one hand, at least one pressure measured during at least one pressure measurement at the end of the air intake phase in a cylinder and, on the other hand, at least one pressure measured during at least one pressure measurement at the end of the exhaust phase, the filter being considered to be clogged when the comparison provides a value greater than a predetermined value.
Method for controlling an air-cooled internal combustion engine of a motor vehicle, said internal combustion engine being controlled by an electronic control unit which is provided with a means for determining the temperature of the intake air, comprising the following steps: • activating the electronic control unit, • setting the stored values of the temperature of the internal combustion engine and the filtered filter coefficient to a zero value, • during an iteration, - determining whether the internal combustion engine is in operation, determining a filter coefficient and a temperature setpoint according to the operating state of the internal combustion engine, - determining a filtered filter coefficient by first-order filtering of the filter coefficient, and the stored value of the filtered filter coefficient, - determining a temperature of the internal combustion engine according to the filtered filter coefficient, the temperature setpoint and the stored value of the temperature of the internal combustion engine, - determining whether the internal combustion engine is stopped and whether the difference between the engine temperature and the intake air temperature is less than a predetermined threshold, • if this is not the case, storing the filtered filter coefficient and the temperature of the internal combustion engine, the method subsequently resuming when it is determined, during a new iteration, whether the internal combustion engine is in operation • if this is the case, transmitting a signal authorising the shutdown of the electronic control unit.
A method for determining the position of a motor vehicle crankshaft provided with a rotary target comprising marks distributed in a uniform manner on its periphery and a signature, and a sensor configured to emit an electric signal comprising a succession of fronts appearing when a mark or the signature pass in front of the sensor, comprising the following steps: - at each front prior to the signature, - determining the date of detection of a front then estimating the date of detection of the next front depending on the speed of rotation of the crankshaft, - determining the date of detection of the next front then calculating the time difference between the estimated and determined date of detection of the front, - determining an angular error depending on the date of detection of the next front and the time difference, - if it is determined that the absolute value of the angular error is greater than a threshold, determining the presence of an abnormal front and storing the associated mark number in a first error list, - when the signature passes, - copying the first error list into the second error list if it does not exist, - adjusting an event counter depending on the error lists, and - if it is determined that the errors are not transient, correcting the fronts of which the mark number is stored in the second error list, then emitting a crankshaft position signal depending on the signal comprising the fronts.
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
The present invention concerns a method for synchronising an engine comprising a camshaft and a camshaft position sensor, the method comprising, at each detected tooth edge, the implementation of the following steps: - calculating a time signature of the detected edge, - comparing the time signature of the detected edge with a set of theoretical signatures of edges of the target comprising a theoretical signature for each edge of the target, the comparison being implemented with a tolerance, and - generating a synchronisation or synchronisation fault signal depending on the result of the comparison, the synchronisation method being characterised in that, when the engine speed drops below a predetermined threshold, the tolerance adopted for comparing the time signature of a detected edge with the theoretical signature of an edge of the target is reduced relative to the tolerance adopted for the same comparison before the engine speed has dropped below said threshold.
System for identifying road signs comprising: at least one radar (1) or lidar detection device, display devices including a plurality of road signs (2), each sign having at least one display face, each display device comprising one or more dihedrals or trihedrals (3) on the display face, each of the dihedrals or trihedrals having a surface radar or lidar echo equal to or greater than a predetermined threshold, in view of the radar or lidar detection device, at least one video camera (7), characterized in that the video camera uses the result of the radar or lidar detection device to circumscribe the analysis of video images on the positions in which a road sign or a display device has been identified by the radar detection device.
The present invention concerns a device for identifying sirens of priority vehicles and warning a hearing-impaired driver of a motor vehicle of the presence of at least one priority vehicle in the area surrounding his or her vehicle comprising at least one sound receiver (1a), a calculation unit (3) with means for analysing the sound track and means for comparing frequencies of the sound track with frequencies previously stored in storage means of the calculation unit (3) as being associated with a siren of a given priority vehicle, this being the case for each type of priority vehicle, and at least one visual and/or vibratory warning element (9, 7d, 7g) for warning the driver when the presence of a priority vehicle is detected in the area surrounding the motor vehicle.
G08G 1/0965 - Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
B60Q 5/00 - Arrangement or adaptation of acoustic signal devices
G10L 25/51 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination
G10L 25/18 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
The invention relates to a method for synchronizing an internal combustion engine comprising at least one camshaft on which a target is mounted, a sensor for sensing the position of the camshaft, and a processing unit. In said method, a synchronization signal or asynchronization signal is emitted according to the ascertained direction of rotation of the target.
The invention relates to a prediction device (1) for predicting the most probable route of a vehicle (V), said device comprising a calculator (11) and a memory (10), the prediction device (1) being designed to train a model for predicting the most probable route from a set of vehicle route histories, each route history comprising a list of geographic coordinates, and to predict the most probable route of a vehicle (V) by applying the prediction model to localisation data of the vehicle (V), characterised in that the prediction device (1) is designed to train (100) the prediction model by: conversion (110) of each vehicle route history into a series of route segments, a route segment being a portion of a route comprised between two intersections or between an intersection and a dead end; production (120), by application of a language-processing model to all of the route segments of the vehicle route histories, of a vector space in which each route segment of all of the vehicle route histories corresponds to a vector; and supervised learning (130) of a neural network receiving a vector of the vector space at its input and generating a vector of the vector space at its output, on the basis of a set of series of two consecutive segments of all of the vehicle route histories.
The invention relates to a vehicle having an engine control unit (ECU) comprising means for detecting an imminent breakdown of the engine or an element associated with the engine, and a vehicle control unit (VCU) comprising geolocation means for locating the vehicle and a nearby structure for repairing an imminent breakdown as well as means for working out a route for reaching the structure and for locating at least one safe stopping area situated along said route, wherein the two units comprise means for receiving and transmitting information between them, and the vehicle control unit (VCU) sends a request for the temporary malfunction of the vehicle to the engine control unit (ECU) just before the vehicle moves past the at least one safe stopping area or the structure.
The present invention relates, in particular, to a device (10) for receiving a radio signal, capable of estimating a time of arrival of said radio signal. The receiving device includes a receiving module capable of receiving the radio signal, as well as a detection module configured for: • measuring a current supplied by an electrical power source to the receiving module, • detecting a current peak measured by the detection module, said current peak being caused by the reception of the radio signal by the receiving module, • determining the time of arrival of the radio signal as a function of the time of detection of the detected current peak.
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
G07C 9/00 - Individual registration on entry or exit
G01S 11/02 - Systems for determining distance or velocity not using reflection or reradiation using radio waves
G01S 13/74 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
G01S 13/76 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
54.
METHOD FOR DETECTING THE INTENTION TO LOCK OR UNLOCK A VEHICLE DOOR AND ASSOCIATED DETECTING DEVICE
One subject of the present invention is a device (D) for detecting the intention to lock or unlock a door of a motor vehicle, said device (D) comprising at least one first inductive sensor (A1), comprising a first target (20), an oscillating circuit (M1) comprising a coil (B), means for measuring a resonant frequency of said circuit (M2), and a printed circuit board (10), said device (D) being characterized in that it comprises a second inductive sensor (A2) comprising: - a second target (30) of loop shape, such that a first end (E1) of the loop is connected to a fixed potential, and a second end (E2) of the loop is connected to switching means (S1) having two states: - in a first state (P1), the second end (E2) of the loop is connected to said fixed potential, - in a second state (P2), the second end (E2) of the loop is connected to a floating potential, - means (M3) for controlling the switching means (S1), - the coil (B) of the first inductive sensor (A1) being common to the second inductive sensor (A2).
The invention relates to an identification system (1) configured to identify a driver of a vehicle after the vehicle has been started, the identification system (1) comprising a state detection module (2) configured to generate a first set of data containing information on at least one movement of a piece of equipment of the vehicle; an identification module (3) borne by a bearer and configured to generate a second set of data comprising data on the movements of the bearer, and a calculation module (10) configured to correlate the first set of data with the second set of data so as to determine whether the bearer and the driver are the same person.
The invention relates to a method for detecting the disappearance of a task in an environment comprising at least one recurring mother task (TM) which triggers, in nominal mode upon each occurrence, at least one daughter task (TF). The method comprises the following steps: evaluating a mother duration (DTMi) which has elapsed between the last occurrence (TMi) and the penultimate occurrence (TMi-1) of the mother task (TM), evaluating a daughter duration (DTFi) which has elapsed between the last occurrence (TFi) and the penultimate occurrence (TFi-1) of the daughter task (TF), comparing the mother duration (DTMi) and the daughter duration (DTFi); it is concluded that an occurrence of the daughter task (TF) has disappeared if the daughter duration (DTFi) is greater than the mother duration (DTMi), preferably by a margin.
The present invention concerns systems, methods and a set of computer programs for accurately locating the position of at least one road object associated with a portion of a road network. The general principle of the invention is based on determining the position of a road object using unsupervised classification based on distribution density. In the invention, the classification is applied in two phases. In the first phase, it is applied a first time to the plurality of geographical coordinates associated with a road object so as to automatically group it into homogeneous classes. In the second phase, it is applied a second time to each class produced in the first phase, so as to automatically group it into homogeneous sub-classes based on the azimuth angles of the road object that are associated with the geographical coordinates of the class.
G01S 5/16 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves
G01B 11/00 - Measuring arrangements characterised by the use of optical techniques
G06K 9/62 - Methods or arrangements for recognition using electronic means
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
58.
PREDICTION OF A CARTOGRAPHIC READJUSTMENT PARAMETER BY DEEP LEARNING
The subject of the present invention is methods (300) for training models of deep learning (400), methods for predicting a cartographic readjustment parameter, methods for updating a digital road map, a computer program making it possible to implement the methods and devices (100) for updating a digital road map. The general principle of the invention is based on the use of automatic learning (or "machine learning"). Accordingly, in the invention, a statistical deep learning model is trained according to a so-called supervised automatic learning scheme. Thereafter, the pretrained statistical deep learning model is used to predict a cartographic readjustment parameter on the basis of a measurement of geographical coordinates and of an identifier of the position sensor that carried out the measurement of geographical coordinates. Finally, the cartographic readjustment parameter can be used to update a digital road map.
The present invention relates to a method for detecting the presence of a user (2) in the interior of a motor vehicle (1). The vehicle (1) comprises a plurality of wheels (5AG, 5AD, 5ARG, 5ARD, 5RdS), each one comprising a measuring module (5-1, 5-2, 5-3, 5-4, 5-5) that can emit, to a calculator (10), signals comprising measurements performed by said measuring module (5-1, 5-2, 5-3, 5-4, 5-5). The method comprises the steps of receiving a plurality of information signals sent by at least one measuring module (5-1, 5-2, 5-3, 5-4, 5-5), measuring the power value of each information signal received, determining, from the plurality of power values measured, a power profile associated with the measuring module (5-1, 5-2, 5-3, 5-4, 5-5), comparing a determined power profile with a pre-determined reference power profile, and detecting the presence of a user (2) in the interior of the vehicle (1) when the determined power profile is different from a pre-determined reference power profile.
RMtotaltotal) of the LC resonant circuit (9), this adjustment device providing at least two different total capacitance values for the LC resonant circuit (9).
H03K 17/97 - Switches controlled by moving an element forming part of the switch using a magnetic movable element
E05B 81/78 - Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by handles as part of a hands-free locking or unlocking operation
H03K 17/95 - Proximity switches using a magnetic detector
The invention relates to a method for determining the true ethanol content of a fuel comprising: • · a step of collecting data regarding the instantaneous fuel consumption and ethanol content, • · a step of determining the current cumulative fuel consumption, • · a step of storing the data in two matrices, one ethanol-content matrix and one cumulative-consumption matrix, • · a step of determining the value of the true ethanol content of the fuel to be applied to the injector, the said true content being the value of the ethanol content from the ethanol-content matrix that has the same abscissa value as the lowest cumulative consumption value from the cumulative-consumption matrix for which the difference between the current cumulative-consumption value and the said cumulative-consumption value is below the value of a volume V of the pipe running between the sensor and the injector.
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
The present invention relates to a measurement sensor (3) intended to be mounted within a wheel of a motor vehicle, said measurement sensor (3) comprising an electronics housing (31), suitable for measuring at least one pressure value for the gases present inside a tire mounted on said wheel, and an inflation valve (32), suitable for allowing the gas to be introduced into the interior of said tire. The measurement sensor (3) comprises at least one connecting member (33) configured to allow the electronics housing (31) to hinge in relation to the inflation valve (32).
The present invention relates to a toothed wheel (1) for a camshaft which forms a target for a camshaft position sensor, the toothed wheel comprising a circular body which comprises two opposite main faces, and at least four teeth distributed over the circumference of the circular body, each tooth comprising two edges, one corresponding to a rising edge and the other to a falling edge, according to a direction of rotation of the wheel, the angular difference between the edges of each tooth being different for each tooth, characterised in that the four teeth are shaped so that the toothed wheel comprises, considering the same main face (11A) and the same direction of rotation of the wheel: - four edges (14) of the same first rising or falling type which are spaced apart by 90°, respectively, and - three edges (15) of the second respectively rising or falling type, which are spaced apart by 120°, respectively.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
64.
DEVICE FOR DETECTING AN ITEM OF ELECTRONIC EQUIPMENT AND FOR COMMUNICATING WITH TWO NEAR-FIELD COMMUNICATION ANTENNAE
The present invention relates to a device (3) for detecting the approach of a portable item of electronic equipment (S) and for near-field communication with a first high-frequency communication antenna (1) and an electrical control and power supply unit having means for measuring a variation in amplitude of an electrical parameter representing a detection of the approach of the equipment (S). The device comprises a second near-field communication antenna (2) housed in a space demarcated by the first antenna (1) and associated with resonance means by being connected to the control unit by a switch (9) having a first position for near-field communication, where the second antenna (2) is not powered, and a second position for detecting approach, where the second antenna (2) is connected and resonates with the first active antenna (1).
The present invention concerns a method for detecting the approach of an object (V2) on a lateral side of a moving motor vehicle (V1), the vehicle (V1) being equipped with door handles (10, 20) on the lateral side each comprising an ultra-high frequency antenna (BLE1, BLE2), capable, when the vehicle (V1) is stationary, of detecting the presence of a portable piece of user equipment in the vicinity of the vehicle and of identifying the equipment in order to validate hands-free access to the vehicle (V1) for the user, the method being characterised in that; • it involves previously adapting the antennae in such a way that each of the antenna emits an electromagnetic field, of which a first radiated power (P1) per steradian in a first zone (Z1) oriented towards the outside of the vehicle defined by a first opening angle (α) is greater than a second radiated power (P2) per steradian in a second lateral zone (Z2) directed towards the other antenna defined by a second opening angle (β). • and, when the vehicle is moving, the detection of the approach of the object is validated by the reception, by at least one antenna, of an electromagnetic field emitted by the other antenna and reflected by the object, the received power of which is greater than a predetermined minimum received power.
G01S 13/04 - Systems determining presence of a target
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
G01S 13/58 - Velocity or trajectory determination systems; Sense-of-movement determination systems
G01S 13/93 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes
G01S 7/41 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
66.
METHOD FOR TESTING AT LEAST ONE TRANSMITTING ANTENNA OF A VEHICLE
The invention relates to a method for testing at least one transmitting antenna of a vehicle, in particular a motor vehicle, proceeding from a test computer and an electronic key.
G01B 21/12 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
G01B 7/12 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
68.
VARIABLE SPACING FLANGE PULLEY FOR VARIABLE-SPEED DRIVE
The aim of the present invention is a pulley having: - a shaft (2); - a first flange (12), called fixed flange, mounted so as to be translationally immovable relative to the shaft; - a second flange (14), called movable flange, mounted so as to be rotated by the shaft but being able to move longitudinally relative thereto; - a mechanism for mechanically controlling the longitudinal movement of the second flange relative to the shaft comprising: - a first assembly (26, 38) mounted on the shaft and rotated thereby; - a second assembly (22) mounted on the shaft by means of at least one torsion spring (24) so that the relative angular position of the second assembly relative to the shaft depends on the torque transferred by the shaft; - means (72) for locking in at least one position between the first assembly and the second assembly.
F16H 63/06 - Final output mechanisms therefor; Actuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
G01P 3/48 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
G01P 21/00 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass
G01L 17/00 - Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
70.
METHOD FOR ESTIMATING THE EXTERNAL RADIUS OF A TYRE FITTED TO A WHEEL OF A MOTOR VEHICLE
G01B 21/12 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
G01B 7/12 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
71.
METHOD FOR REDUCING ELECTROMAGNETIC DISTURBANCES GENERATED DURING THE SWITCHING OF A TRANSISTOR INTO THE CONDUCTING STATE
The invention relates to a method for reducing the electromagnetic disturbances generated during the switching, into a conducting state, of a transistor for switching a quasi-resonant DC-DC voltage converter. The method comprises the steps: the transistor being initially controlled in the conducting state on the basis of a first control current, command (E1) of the control module by the command module so that said control module switches the transistor into the non-conducting state in a first moment; start (E2) of the timer from said first moment, and if the timer reaches a pre-determined time threshold, control (E3), by the control module, of the transistor in the conducting state on the basis of a second control current having a lower intensity than that of the first control current.
H03K 17/16 - Modifications for eliminating interference voltages or currents
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
72.
INFLATION VALVE FOR A VEHICLE WHEEL, AND WHEEL SENSOR COMPRISING SUCH A VALVE
An inflation valve (1A) for a vehicle wheel, comprising a valve body (2) and a rigid conduit (3) extending into the valve body (2). The rigid conduit (3) comprises an upstream tube (8) and a downstream tube (9) connected to one another by a sleeve (11), the material of the downstream tube (9) having a density that is less than the density of the material of the upstream tube (8). The valve body (2) is in contact with the upstream tube (8) and with the downstream tube (9), the valve body (2) being fixed to at least one of the upstream (8) and downstream (9) tubes by at least one adhesion surface (16, 17), the sleeve comprises at least one emerging opening, in which one of the adhesion surfaces is disposed.
The invention relates to a method for adjusting the periodicity of wireless communications between a tyre-pressure-monitoring system of a motor vehicle and a smart device of a user of the vehicle in question. According to the position and the potential movement of the smart device of the user in the environment of the vehicle, the periodicity of the alternation, by the different units of the system, of phases of emission/polling of ultra-high-frequency signals with idle phases is modified.
The invention relates to a circuit (1) for processing a logic input (EL), comprising a first comparator (C1) capable of comparing the logic input (EL) with a first reference voltage (Vref1), and of providing a logic output (SL) at a first output logic level (VO1) if the logic input (EL) is higher than the first reference voltage (Vref1) and otherwise at a second output logic level (VO2) different from the first output logic level (VO1), wherein the power supply of the first comparator (C1) and the first voltage reference (Vref1) are activated by the logic input (EL).
The invention relates to a heat sink device comprising a body (3) and at least one main cold plate (4a) in contact with the at least one housing (2a) of an electronic device (2), the electronic device (2) further being provided with at least two connection pins (2b) for connecting to a printed circuit (1) and generating the heat when it is active, characterised in that it comprises at least one secondary cold plate (4b) in contact with the printed circuit (1) near the connection pins (2).
Method for determining the fuel pressure in a common-rail injection rail of an internal combustion engine, comprising the following steps: • determining (14) the angular position of an eccentric cam corresponding to the instant at which to command closure of a digital intake valve in order to obtain a fuel pump control ratio equal to a predefined variable • commanding (15) closure when the determined angular position is reached, and determining whether a variation in pressure in the common rail occurs, • if such a variation is not determined, the variable is incremented (16) by a predefined second value, and the method returns to determining the angular position, • if such a variation is determined, the volume of fuel compressed is determined (17) in order to determine the pressure at which the fuel was admitted to the common rail.
F02D 41/38 - Controlling fuel injection of the high pressure type
F02D 41/22 - Safety or indicating devices for abnormal conditions
F02M 63/02 - Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02D 41/04 - Introducing corrections for particular operating conditions
77.
METHOD FOR DETERMINING THE ANGULAR POSITION OF A TOOTHED TARGET WHICH IS ROTATABLY SECURED TO A SHAFT OF AN INTERNAL COMBUSTION ENGINE
The invention discloses a method for determining the angular position of a toothed target which is rotatably secured to a shaft of an internal combustion engine. The method is based on dynamically determining a ratio between the different periods measured between the teeth of the target. Comparing said ratio with a threshold value makes it possible to identify, where appropriate, an angular reference area around the periphery of the toothed target.
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
78.
METHOD FOR CONTROLLING A DC-TO-DC VOLTAGE CONVERTER
The present invention relates to a method for controlling a DC-to-DC voltage converter in order to drive the current of at least one fuel injector of a motor vehicle thermal combustion engine. The method comprises the steps of, when the transistor is switched from the off state to the on state, triggering (E1) a timer if, at the end of a predetermined so-called "observation" period, the intensity of the peak current has not reached its maximum value, commanding (E2) the transistor so that said transistor switches from the on state to the off state, keeping (E3) the transistor in the off state for a predetermined so-called "cooling" period, and commanding (E4) the transistor so that said transistor switches to the on state at the end of the cooling period.
H03K 17/082 - Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
H02H 3/247 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to undervoltage or no-voltage having timing means
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
H02M 3/338 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
79.
METHOD FOR TRIGGERING THE CHANGING OF A TRANSISTOR TO THE ON STATE
The present invention relates to a method for triggering the changing of a switching transistor of a quasi-resonant DC-to-DC voltage converter to the on state. The method comprises the steps of phase-shifting (E1) the drain voltage of the transistor by a predetermined temporal phase-shift value corresponding to the difference between the duration of a quarter-period of the damped sinusoidal oscillation generated when the transistor is turned off and the duration that elapses between the command to change the transistor to the on state and said transistor effectively conducting and, when the phase-shifted voltage is equal to the reference voltage, triggering (E2) the command to change the transistor to the on state such that the transistor begins to conduct at the time when the value of the drain voltage is at a minimum.
H03K 17/13 - Modifications for switching at zero crossing
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 3/338 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
80.
METHOD FOR CONTROLLING A MODULE FOR CONTROLLING A TRANSISTOR
The present invention relates to a method for controlling a module for controlling a transistor of a DC-DC voltage converter enabling the control of at least one fuel injector (2) of a motor vehicle heat engine. The method comprises the step (E1) of measuring the intensity of the current flowing in that switch, of the first switch or the second switch, which is in the on state, a step (E2) of determining the electrical charge transported by said current, and a step (E4) of interrupting the operation of the control module when the determined electrical charge is greater than a predetermined maximum electrical charge threshold.
H03K 17/0812 - Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
81.
RADIO-TRANSMITTING SENSOR FOR A VEHICLE WHEEL, COMPRISING A DUAL-MODE ANTENNA IMPEDANCE MATCHING CIRCUIT
Disclosed is a radio-transmitting sensor (6) for a vehicle wheel, adapted to measure at least one physical quantity and transmit a radio signal representative of said measured physical quantity, the sensor comprising a measurement and transmission circuit (7), an antenna impedance matching circuit (8) and an antenna circuit (9), the sensor further comprising a sensitivity switch (20) that is controlled by the measurement and transmission circuit and adapted to switch the antenna impedance matching circuit according to two modes: • a dynamic mode in which the sensor transmits said radio signal representative of the measured physical quantity, said signal comprising data frames transmitted in a first bandwidth and according to a first quality factor; and • a static mode in which the sensor transmits a radio signal in a second bandwidth that is lower than or equal to the first bandwidth, and according to a second quality factor that is higher than the first quality factor.
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
B60C 23/00 - Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
82.
ACTIVATION MODULE SIMULTANEOUSLY DETECTING THE APPROACH AND PRESSURE OF A USER WITH A MOVABLE HIGH-FREQUENCY ANTENNA
The invention relates to an activation module (2) for activating a function in a motor vehicle, said module (2) being housed in a member (1) and comprising a detection and communication device having at least one high-frequency-emitting communication antenna (3) and a device for detecting a deformation of the member (1), the communication antenna (3) being connected to a printed circuit board (4) comprising means for measuring voltage variation across the terminals of the communication antenna (3), means for interpreting the measuring means, and emitting and receiving means with an electronic control unit having means for activating the function. The communication antenna (3) is movable in relation to the printed circuit board (4) under the action of the deformation (1) of the member, the measuring means then detecting a voltage variation across the terminals of the communciation antenna (3).
E05B 81/78 - Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by handles as part of a hands-free locking or unlocking operation
H01Q 1/32 - Adaptation for use in or on road or rail vehicles
83.
ON-BOARD CONTROL UNIT IN A MOTOR VEHICLE, WITH AUXILIARY VOLTAGE BOOSTER
The invention relates to an on-board control unit in a motor vehicle, comprising a main battery (1), the control unit supplying a regulated accessory output voltage (Vacc) from the main battery (1), via an output circuit, and comprising a main voltage booster (7) supplied by an auxiliary battery (8), the main voltage booster (7) being active below a first predetermined voltage threshold (VS1) in the output circuit, which is lower than the regulated accessory output voltage (Vacc), and being connected to the output circuit downstream of the main battery (1). The control unit comprises an auxiliary voltage booster (7a) which is active below a second predetermined voltage threshold (VS2), which is higher than the first voltage threshold (VS1), the auxiliary voltage booster (7a) being integrated into the output circuit downstream of the main voltage booster (7).
The invention describes a method for diagnosing a digital valve in a fuel-injection system. During the diagnosis, a diagnosis current is applied to the digital valve with an intensity and holding time (Dmain) predetermined by experience with digital valves identified as faultless, this intensity and time being recognised as being sufficient for an inflection (23) on a curve of the closing current to be detected within the holding time (Dmain). Measurements of the diagnosis current plus the induced current during the holding time (Dmain) are taken at more than 3 kHz. When an inflection (23) on the current curve is detected within this holding time (Dmain), the valve is considered to be compliant. When no inflection (23) on the curve is detected within this holding time (Dmain), the valve is considered to be faulty.
The invention relates to a method for calbrating a crankshaft sensor (1a,1n) of the type comprising a crankshaft wheel (2) and a sensor element (3a, 3n) facing same, during the replacement of the crankshaft sensor (1a,1n), said method comprising the following steps: saving an old angular position (ωa) of a wheel (6) of a camshaft sensor (5) in relation to the crankshaft wheel (2), obtained with the old crankshaft sensor (1a), replacing the old crankshaft sensor (1a) with a new crankshaft sensor (1n), determining a new angular position (ωn) of the same wheel (6) of the camshaft sensor (5) in relation to the crankshaft wheel (2), obtained with the new crankshaft sensor (1n), and correcting the measurement of the crankshaft sensor (1n) by applying a shift (Δ) equal to the difference between the new angular position (ωn) and the old angular position (ωa).
G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
G01D 3/02 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for altering or correcting the transfer function
86.
RADIO-TRANSMITTING SENSOR FOR A VEHICLE WHEEL, COMPRISING A DUAL-MODE ANTENNA CIRCUIT
Disclosed is a radio-transmitting sensor (6) for a vehicle wheel (1), adapted to measure at least one physical quantity and transmit a radio signal representative of said measured physical quantity, the sensor (6) comprising a measurement and transmission circuit (7), an antenna impedance matching circuit (8) and an antenna circuit (9). The sensor (6) further comprises a sensitivity switch (20) that is controlled by the measurement and transmission circuit (7) and adapted to switch the antenna circuit (9) according to two modes: • a dynamic mode in which the antenna circuit (9) is configured as a magnetic antenna and in which the sensor (6) transmits said radio signal representative of the measured physical quantity, this signal comprising transmitted data frames (TD); and • a static mode in which the antenna circuit (9) is configured as an electrical antenna.
The invention relates to a method for controlling a DC-DC voltage converter for the current control of at least one fuel injector of a heat engine of a motor vehicle. The method particularly comprises the steps of: determining (E1) a so-called "recovery" instant in which the output voltage exceeds the predetermined high voltage threshold; determining (E2) a so-called "drop" instant, corresponding to the beginning of an injection, at which the output voltage falls below the predetermined high voltage threshold; and calculating (E3) the time lapse between the recovery instant and the drop instant.
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
The invention relates to a method for learning the angular position, in relation to a reference axis of a vehicle, of a three-axis accelerometer built into an electronic control unit of a motor of the vehicle. Said method is based on allowing the calculator of the electronic control unit to deduce said angular position from values of measured accelerations for different positions of the vehicle imposed by the user.
B60R 21/013 - Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
The invention relates to a heat sink (1) comprising a first face (2) in contact with electronic components that generate heat to be evacuated and a second face (3) in contact with the environment in which the heat generated by the electronic components is intended to be dissipated, comprising - at least one device for improving thermal conductivity that comprises a domed surface (5), a peg (6) and a lateral section (7) of revolution about the peg (6), the domed surface (5) being connected to one end of a peg (6) and to the lateral section (7) of revolution, - the domed surface (5) being disposed on the side of the second face (3), the free end of the peg (6) being disposed on the side of the first face (2).
The invention relates to a device and a processing method for a camshaft sensor (1) of the type comprising a toothed camshaft wheel (2) and an opposite sensitive element (3) that is able to detect a tooth front, comprising the following steps: detection of a new tooth front (k) by said sensitive element; calculation of a rotational speed (Wk) of the camshaft wheel (2) for the new tooth front (k); comparison with the rotational speed (Wk-1) of the camshaft wheel for the preceding tooth front (k-1) detected by said sensitive element; if the variation of the rotational speed (Wk) of the camshaft wheel (2) between the new tooth front (k) and the preceding tooth front (k-1) is low, the new tooth front (k) is validated, otherwise the new tooth front (k) is rejected.
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
91.
METHOD FOR ANALYSING A FLUID OF A MOTOR VEHICLE USING AN OPTICAL SENSOR
The present invention concerns a method for analysing a fluid of a motor vehicle, using an optical sensor (100) comprising a Fabry-Pérot interferometer (10) for performing spectral analysis of a light beam, a voltage generator (20) and power storage units (31, 32, 33). The method comprises successive steps of charging the storage units (31, 32, 33), by the generator (20), and supplying power to the interferometer (10), by the storage units (31, 32, 33).
G01N 21/3504 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
G01J 3/26 - Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filter
G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
92.
DEVICE FOR FILTERING LIQUID DRAWN IN BETWEEN TWO SUPERIMPOSED LAYERS OF FILTERING MEDIA
The present invention relates to a filtration device for a liquid, comprising:- at least two superimposed layers (4, 6) of filtering media which have weld lines (16, 18) together forming bands, the layers (4, 6) of filtering media having weld lines (16, 18) which are superimposed in such a manner that the weld lines (16, 18) of one layer (4, 6) form with the weld lines (18, 16) of the other layer (6, 4) a mesh in a view normal to the layers (4, 6) of filtering media, - a first external face (2) and a second external face (8) which are each at least locally produced from a material which is water-permeable, the layers (4, 6) of filtering media being arranged between the external faces (2, 8) and - an intake connector (10) which serves to draw in liquid through the filtration device.
B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups ; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
B01D 29/54 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups ; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
B01D 29/58 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups ; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
93.
METHOD FOR DIAGNOSING A REDUCTION IN TIGHTNESS OF AN INTERNAL COMBUSTION ENGINE CYLINDER
The invention concerns a method for diagnosing a reduction in tightness of an internal combustion engine cylinder, comprising the following steps: detecting a stop of the engine, determining that at least one cylinder is closed, measuring the pressure and calculating a pressure decrease indicator in said at least one cylinder, and comparing the indicator with a threshold. When the indicator is greater than said threshold, a reduction in tightness is diagnosed in said at least one cylinder and an alarm is triggered.
The present invention provides a method for controlling the duty cycle of a controlled current signal of a conversion module of a voltage converter, comprising a step (E1) of measuring, through the microcontroller, the duty cycle of the envelope of the controlled current signal, and when the value of the duty cycle is below a predetermined threshold, a step (E2A) of commanding, through the microcontroller, the current control module such that the current control module decreases the amplitude of the control signal and the duty cycle of the envelope of the controlled current signal thus tends towards a predetermined threshold, or when the value of the duty cycle is greater than the predetermined threshold, a step (E2B) of commanding, through the microcontroller, the current control module such that said current control module increases the amplitude of the controlled current signal and the duty cycle of the envelope of the controlled current signal thus tends towards said predetermined threshold.
H02M 3/156 - 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 with automatic control of output voltage or current, e.g. switching regulators
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
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
95.
METHOD FOR DETECTING THE TRAPPING OR TWISTING OF A DISCHARGE PIPE
The present invention relates to a method for detecting the trapping or twisting of a discharge pipe that connects a fuel tank and an absorbent filter of a motor vehicle evaporation system. The method comprises the steps, with the valve initially being in its closed position, of moving (E1) the valve using the gases circulating in the absorbent filter, measuring (E2), in the absence of operation of the solenoid, the voltage generated across the terminals of the solenoid as a result of the movement of the valve, and of detecting (E3) a pinching or twisting of the discharge pipe when the voltage measured lies between a first predetermined threshold and a second predetermined threshold.
The present invention relates to a toothed wheel (1) for a camshaft, comprising a plurality of teeth (10) which are distributed over the circumference of the toothed wheel, the toothed wheel comprising four groups of teeth, namely:- a first group (13) comprising one tooth, - a second group (14) comprising two teeth, - a third group (15) comprising three teeth, and - a fourth group (16) comprising four teeth, the groups of teeth being arranged so that: the consecutive teeth of each group comprising at least two teeth are all spaced apart by the same angular distance, the toothed wheel comprises, between two groups of consecutive teeth, a portion (17) which has no teeth and which extends over at least 35°, there are four teeth which are spaced apart by 90° over the circumference of the toothed wheel, and three teeth which are spaced apart by 120° over the circumference of the toothed wheel.
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
G01D 5/245 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
97.
METHOD FOR MEASURING A PHYSICAL QUANTITY BY MEANS OF A DIGITAL SENSOR
The invention relates to a method for controlling an electronic control unit (1) of a motor vehicle for the acquisition of the measurement of a physical quantity by means of a digital sensor (2) connected to the electronic control unit (1), in which method the sensor (2) emits digital measuring data over an emission period and the electronic control unit (1) processes said measuring data over a processing period (Tt), the emission period (Te) being shorter than the processing period (Tt). At the end of each processing period, the average value of the measured physical quantity is determined over an interval of N previous processing periods.
MAXMAX). The capacitive actuator (20) being arranged in series with a switch (21), said method (50) comprises steps of: (51) placing the switch (21) in an open state, (52) activating the control circuit (10), (53) measuring the output voltage on the output port (13), and (54) evaluating a criterion of detection of a malfunction of the voltage-limiting circuit (11) depending on the output voltage.
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 31/01 - Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
F02D 41/20 - Output circuits, e.g. for controlling currents in command coils
99.
DEVICE FOR HIGH-FREQUENCY NEAR-FIELD COMMUNICATION AND FOR RECHARGING A PORTABLE ELECTRONIC APPARATUS BY INDUCTION
The invention concerns a device (1) for high-frequency communication and for recharging an apparatus by induction, comprising a recharging surface (5), at least one recharging antenna (6) emitting a magnetic field at a low frequency and a layer (7) made of ferromagnetic material. The device comprises at least one communication antenna (31, 32) and a printed circuit board (2). The communication antenna (31, 32) is in the form of a coil locally surrounding the layer (7) having an axis of symmetry located in a plane parallel to the layer (7). The material of the layer (7) is selected in order to have, at high frequency, a sufficiently high imaginary component of the permeability in order to cause leaks on the surface of the layer (7) extending perpendicular to the layer, while maintaining, at low frequency, a sufficiently low imaginary component of the permeability in order to allow recharging by induction.
H04B 5/00 - Near-field transmission systems, e.g. inductive loop type
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H01Q 1/52 - Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
100.
SYSTEM FOR CONTROLLING THE POWERTRAIN OF A HYBRID VEHICLE WITH MANAGEMENT OF EXCESS PRESSURE IN THE FUEL RAIL
The invention relates to a system for controlling the powertrain (4) of a hybrid vehicle (1) comprising an internal combustion engine (5), an electrical machine (6) and an electrical accumulator (9), the system performing the following steps: detecting excess pressure in the fuel rail (13) in relation to a setpoint pressure; injecting, into the internal combustion engine (5), a pre-determined quantity of fuel corresponding to the volume of fuel to be discharged from the fuel rail (13) in order to reduce the pressure in the fuel rail (13) to setpoint pressure; and controlling the electrical machine (6) in generator mode in order to absorb the couple generated by the injection of the pre-determined quantity of fuel into the internal combustion engine (5).
F02D 41/38 - Controlling fuel injection of the high pressure type
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
B60W 20/15 - Control strategies specially adapted for achieving a particular effect
F02M 63/02 - Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
F02D 41/12 - Introducing corrections for particular operating conditions for deceleration
patents
