Continental Automotive France

Continental Automotive Gmbh

Vitesco Technologies Gmbh

Siemens Vdo Automotive Corporation

Olivier Gerardiere

Gabriel Spick

Olivier Elie

Yannis Escalante

Alain Fontanet

Jean-louis Roux

Grégory Siguier

Xavier Hourné

Xavier Hourne

Sébastien Kessler

John Jefferson Lackey

Mickael Guibbert

Maxime Micheau

Jeremie Blanc

Carlos Eduardo Rodrigues

Disclosed is a method for detecting the approach of an object on a lateral side of a moving motor vehicle with door handles on lateral sides, each including an ultra-high-frequency antenna detecting a portable user apparatus near the vehicle and identifying it to validate hands-free access to the vehicle for the user, the method including: each antenna emitting an electromagnetic field, a first radiated power per steradian of which, in a first zone directed outside of the vehicle and defined by a first aperture angle, is greater than a second radiated power per steradian in a second, lateral zone directed toward the other antenna and defined by a second aperture angle; and, when the vehicle is moving, validating approach detection by antenna reception of an electromagnetic field emitted by the other antenna and reflected by the object, whose received power is higher than a predetermined minimum received power.

Method for detecting the approach of an object on a lateral side of a moving vehicle and on-board associated detection device

Disclosed is an activation module for a function in a motor vehicle accommodated in a component, the module including a detection and communication device including at least one communication antenna transmitting at a high frequency and a device for detecting a deformation of the component, the communication antenna being connected to a printed circuit board including a unit for measuring voltage variation across the terminals of the communication antenna, a unit for interpreting the measuring unit and transmission and reception unit with an electronic control unit having a unit for activating the function. The communication antenna is movable relative to the printed circuit board under the action of the deformation of the component, the measuring unit then detecting a voltage variation across the terminals of the communication antenna.

Activation module simultaneously detecting the approach and pressure of a user with a movable high-frequency antenna

A device for detecting the intention of a user to lock or to unlock a motor vehicle door. The device being incorporated within a handle, including: a capacitive sensor for detecting the approach and/or the contact of a hand of the user toward/with the handle, including at least one electrode, located in proximity to a detection surface of the handle, that is capable of detecting the approach of the hand of a user toward the detection surface; a microcontroller; and a voltage source. At least a portion of the electrode takes a continuous shape of successive arches which allow water to flow away and are connected to one another at their bases by junctions, the junctions being pressed against the detection surface, thus forming a sealtight interface.

Motor vehicle door handle with device for detecting an intention to lock and to unlock a motor vehicle door

Disclosed is an authentication reader intended to be installed on a motor vehicle opening element, the reader including a microcontroller, at least one transmitter, at least one matching circuit and a single antenna, called 'primary' antenna, characterized by a working frequency. The matching circuit includes switching element able to switch the matching circuit between a first mode, in which the matching circuit makes it possible to match the primary antenna to a secondary antenna of an authentication device whose resonant frequency is lower than the working frequency, and a second mode, in which the matching circuit makes it possible to match the primary antenna to a secondary antenna of an authentication device whose resonant frequency is higher than the working frequency.

Authentication reader for motor vehicle opening element

Disclosed is a system for detecting approach and/or contact of a user and Ultra High Frequency communication with a portable user apparatus, intended to be embedded on board an automotive vehicle, the system including: a device for detecting approach and/or contact, including a sensor for detecting approach and/or contact and an electronic control unit; a conducting metal surface, suitable for the conduction of electric charges; and a communication device, including an Ultra High Frequency antenna emitting an electromagnetic field at an Ultra High Frequency wavelength, and a management unit for managing the emission and reception of data of the antenna. The conducting metal surface takes the form of a continuous path including a plurality of meanders spread over a length at least equal to:=&#x3bb;/6wherein L is a total length of the meanders, and &#x3bb; is a wavelength of the Ultra High Frequency antenna.

System for detecting approach and/or contact of a user and ultra high frequency communication with a portable user apparatus

A presence detection device including a sensor connected to a microcontroller, the sensor including a first detection capacitor arranged in a first detection area, and a second detection capacitor arranged in a second detection area. The microcontroller is configured to recurrently repeat a phase of measuring a measurement signal by charging/discharging the first detection capacitor from/into the second detection capacitor, and to detect a presence of a user in the first detection area and/or the second detection area according to the measurement signal. Also disclosed are a motor vehicle including a detection device and a detection method.

Presence detection method and device with multiple detection areas for a motor vehicle

A method for detecting the approach and/or contact of a user's hand close to a motor vehicle door handle. The handle including: an electrode having a capacitance, and a device for measuring the variation in capacitance, a low-frequency antenna situated close to the electrode, the emissions of the low-frequency antenna bringing about disturbances in the operation of the device for measuring the variation in the capacitance. The method proposes that a new adaptive approach detection threshold be calculated, depending on an average of the previous measured variations in the capacitance, calculated over a predetermined time interval, the measured variations being weighted by a factor depending on a difference between each measured variation and the average of the variations calculated previously over a previous predetermined time interval, the approach detection being confirmed if the measured variation is higher than the new adaptive threshold.

Method for detecting approach and/or contact of the hand of a user close to a door handle of a motor vehicle, associated capacitive sensor and detection module

A device for a handle able to be deployed in relation to a motor vehicle door. The device includes a primary module integrated into the door, supplying power, through inductive coupling, to a secondary module integrated into the handle and that moves in relation to the primary module along a predetermined path when the door handle moves between a deployed position and a retracted position. An advantageous arrangement of two primary coils of the primary module and of a secondary coil of the secondary module allows the device to estimate the position of the door handle. Furthermore, the device makes it possible to establish a wireless communication link between the primary module and the secondary module.

Remote power supply, position sensor and wireless communication device for a door with an extendable handle of a motor vehicle

A device for remotely supplying power, through magnetic induction, to a secondary module able to move in relation to a primary module along a predetermined path. An advantageous arrangement of the primary coils of the primary module and of a secondary coil of the secondary module furthermore allows the device to estimate the position of the secondary module. The primary coils are arranged such that: the primary coils form respective magnetic fields oriented in the same direction along their respective axes, during the movement, the inductive coupling between the first primary coil and the secondary coil evolves in the opposite way to the inductive coupling between the second primary coil and the secondary coil, the total inductive coupling existing between the primary coils and the secondary coil is substantially constant regardless of the position of the secondary coil.

Remote power supply, position sensor and wireless communication device for an extendable door handle

A method for detecting a user's intention to lock or to unlock a door of a motor vehicle, using a detection device integrated into a handle of the door, including an ultra-high-frequency antenna, one face of which is situated close to a second outer locking surface or respectively a first outer unlocking surface of the handle, an ultra-high-frequency antenna matching circuit, an ultra-high-frequency signal generator and an electronic unit. The method includes determining a parameter representative of a ratio between a power of a signal transmitted by the ultra-high-frequency signal generator to the ultra-high-frequency antenna and a power of a signal reflected from the ultra-high-frequency antenna to the ultra-high-frequency signal generator, which powers are measured beforehand, and detecting the intention to lock or respectively to unlock when the parameter is higher than or lower than a predetermined threshold.

Method of detecting a user's intention to lock or unlock an automotive vehicle door and associated detection device

A method for detecting presence close to a sensor installed in a motor vehicle, the method including: a plurality of steps of conversion, at a plurality of different values of the reference voltage, of an analog voltage signal into a plurality of different coded digital values; correlating the coded digital values in order to obtain a correlation value; comparing the obtained correlation value with a predetermined reference value; detecting human presence close to the sensor when the difference between the obtained correlation value and the predetermined reference value is greater than a predetermined detection threshold.

Method and device for presence detection for a motor vehicle

A method for determining the position &#x3b8; of a moving part (T) along an axis (X), using an inductive sensor () including: a primary winding (B) generating an electromagnetic field; a first secondary winding (R), generating a first voltage signal (V), of the sine function type; a second secondary winding (R), generating a second voltage signal (V) of the cosine function type; and a calculation unit ('), wherein the method includes the steps of calculating and distributing linearization points i on the arctangent function tan(&#x3b8;) resulting from the ratio of the first voltage signal to the second voltage signal, the linearization points i being distributed according to a sinusoidal function in order to reduce the error on the position (&#x3b8;) of the target (T) at the ends (E, E) of the primary and secondary windings (R, R).

Method for determining the position of a moving part along an axis, using an inductive sensor

An inductive sensor for measuring the position of a shaft of a vehicle in a first direction (X) and a second direction (Y), from a target mounted on the shaft. The sensor () includes a printed circuit board () including at least one first receiving coil (), at least one second receiving coil () and at least one transmitting coil () surrounding the first receiving coil and the second receiving coil. The first receiving coil and the second receiving coil each include a plurality of N portions (A,B,C,A,B,C) that are electrically connected to one another and are disposed side by side on the printed circuit in the second direction, each portion extending on the printed circuit in the first direction in such a way as to determine the position of the target both in the first direction and in the second direction.

Inductive sensor for measuring the position of a shaft of a vehicle

A method for detecting the actuation of a handle () of a motor vehicle door (), the handle () including at least a locking electrode (), having a capacitance across its terminals, and an unlocking request detection device () generating an unlocking request signal, the method including continuously measuring a variation of the unlocking request signal and a variation of the capacitance (&#x394;C) of the locking electrode, determining an unlocking request, and then comparing the variation of the capacitance (&#x394;C) with a threshold (S2) during consecutive first and second predetermined periods (t1, t2), respectively, in order to detect whether the handle () has been actuated.

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Tournefeuille, France

Olivier Gerardiere