Valeo Comfort and Driving Assistance

Valeo Securite Habitacle

Valeo Electronique

Valeo Interior Controls (shenzhen) Co., Ltd

Eric Leconte

Eric Menard

Ciprian Musat

Fabienne Masson

Laurent Petel

Joel Garnault

Stéphane Violleau

Jean-Claude Goumy

Michael Notarianni

Joel Pature

Pascal Laignel

Gilles Martin

François Caresche

A method for measuring a distance R separating a vehicle and an identifier for accessing and starting the vehicle includes N sequences Sq, p&#x2208;[1;N]. Each sequence Sqincludes: transmission, from a transmitter of the vehicle to a receiver of the identifier, of a first signal of frequency f; measurement, by a computer of the identifier, of a phase &#x3d5;, modulo 2&#x3c0;, of the received first signal, in relation to a second signal of phase &#x3d5;(t)=&#x3d5;+2&#x3c0;ft; transmission, from a transmitter of the identifier to a receiver of the vehicle, of the second signal; and calculation, by a computer of the vehicle, of a phase &#x3d5;, modulo 2&#x3c0;, of the received second signal, in relation to the first signal; calculation of the average &#x3d5;of the phase &#x3d5;and of the phase &#x3d5;.

Method for determining a distance between a vehicle and a vehicle access and starter identifier

A method for measuring a distance separating a vehicle and an identifier is disclosed. The method includes transmitting, from the vehicle to the identifier, a first train of first sinusoidal signals, receiving, by the identifier, an image train of second sinusoidal signals corresponding to the first sinusoidal signals, generating, by the identifier, measurements of phases and amplitudes of the second sinusoidal signals that are altered from the first sinusoidal signals by transmission from the vehicle to the identifier, constructing a frequency spectrum based on the measurements and a second image train received by the vehicle from the identifier, where the frequency spectrum is constructed by detecting spectral lines of the first image train and the second image train, performing an inverse Fourier transform of the frequency spectrum to obtain a temporal signature, and calculating the distance on the basis of an intermediate time associated with a maximum of the temporal signature.

Method for determining a distance between a vehicle and an identifier

The invention relates to a method for estimating a distance (d) between a vehicle () fitted with a first wireless communication module () and an identifier () fitted with a second wireless communication module (), including the following steps: generating a randomly ordered list; receiving, by at least one of the first and second wireless communication modules (), electromagnetic signals having a frequency that changes consecutively from among a plurality of frequencies in accordance with said list; for each frequency in the plurality of frequencies, measuring a reception phase of the electromagnetic signal having the relevant frequency; estimating said distance (d) on the basis of the measured phases. An electronic unit () for a vehicle () is also described.

Method for estimating a distance and electronic unit for a vehicle

The invention relates to a method (METH) for measuring a distance R between a vehicle (V) and an identifier (I) for accessing and starting the vehicle (V), the vehicle (V) and the identifier (I) being synthronised. The method (METH) comprises the following steps: &#x2014;selecting (Sel_f) N frequencies f, p&#x3f5;[1;N], N being a natural number at least higher than 3; &#x2014;implementing N sequences Sq, each sequence Sqcomprising the following steps: &#x2022;transmitting (Em_S) a first signal (S) of frequency ffrom an emitter (TXv) of the vehicle (V) to a receiver (Rxi) of the identifier (I); &#x2022;measuring (Mes_&#x3d5;) with a calculator (Xi) of the identifier (I) a phase &#x3d5;, modulo 2&#x3c0;, of the first signal (S) received, relative to a second signal (S) of phase &#x3d5;(t)=&#x3d5;+2&#x3c0;ft; &#x2022;transmitting (Em_S) the second signal (S) from an emitter (TXi) of the identifier (I) to a receiver (RXv) of the vehicle (V); &#x2022;calculating (Mes_&#x3d5;) with a calculator (Xv) of the vehicle (V) a phase &#x3d5;, modulo 2&#x3c0;, of the second signal (S) received, relative to the first signal (S); &#x2022;calculating (Cal_&#x3d5;) the average &#x3d5;of the phase &#x3d5;and of the phase &#x3d5;; &#x2014;for each p between 1 and N&#x2212;1, calculating (Cal_P) a ramp Pusing the formula P=(&#x3d5;&#x2212;&#x3d5;)/(f&#x2212;f); and&#x2014;calculating (Cal_R) distance R front the ramps P, p&#x3f5;[1;N].

The invention relates to a method for evaluating the distance (d) between an identifier () fitted with a first wireless communication module () and a vehicle () fitted with a second wireless communication module (), including the following steps: establishing a wireless connection (L) between the first wireless communication module () and the second wireless communication module (); estimating said distance (d) on the basis of a propagation time of the electromagnetic signals involved in the wireless connection established (L); when the identifier () comes within the range of a signal (S) transmitted by the vehicle (), evaluating said distance (d) by means of a measurement, by the identifier (), of the strength of said transmitted signal (S). An associated electronic unit and identifier are also described.

Method for evaluating the distance between an identifier and a vehicle, associated electronic unit and identifier

The present invention relates essentially to a device for controlling locking/unlocking and/or starting of a vehicle (V) comprising a first communication device (COM) mounted in the vehicle (V), said first communication device (COM) being linked to the control unit (ECU) of the vehicle (V), and a second communication device (COM) disposed in a mobile apparatus (SP), the first communication device (COM) and the second communication device (COM) being able to communicate with one another according to a first mode of communication so as to carry out an authentication of the mobile apparatus (SP) by the vehicle (V), said authentication authorizing the locking/unlocking and/or starting of the vehicle (V), characterized in that the first communication device (COM) and the second communication device (COM) are able to communicate also according to a second mode of communication, so as to determine data representative of the position of the mobile apparatus (SP) with respect to the vehicle (V), and in that the execution, by the control unit (ECU), of the command for locking/unlocking and/or starting the vehicle (V), is dependent on said data representative of the position of the mobile apparatus (SP) with respect to the vehicle (V).

Device for controlling locking/unlocking and/or starting of a vehicle

The invention relates to a method (METH) for assisting in determining the position of an identifier (I) for accessing and starting a vehicle (V), relative to the vehicle (V), comprising: transmission (Em_TS), from a first device, either the vehicle (V) or the identifier (I) to a second device, different from the first, either the vehicle (V) or the identifier (I), at a transmission time t0, of an initial train (TS) of N sinusoidal signals, having identical amplitudes and respective frequencies f, p&#x3f5;[1;N], for any p between 1 and N&#x2212;1; reception (Rec_TS') by the second device of an image train (TS&#x2032;) corresponding to the initial train (TS, TS) altered by the transmission (Em_TS); construction (Cons_Sp) of a frequency spectrum (Sp) for the image train (TS&#x2032;); inverse Fourier transformation (TFI_Sp) of the spectrum (Sp), allowing a time signature (Sg) to be obtained; first integration (Int1_Sg) of the time signature (Sg), between the transmission time tand a pre-determined intermediate time t, producing a first result (Rlt1); second integration (Int2_Sg v) of the time signature (Sg) between the intermediate time tand a pre-determined end time t, producing a second result (Rlt2); comparison (Comp_1/2) of a ratio (R) of the first result (Rlt1) to the second result (Rlt2) with a threshold value (S), so that it is possible to determine if the identifier (I) is positioned inside the vehicle (V).

Method for assisting in determining the position of an identifier in relation to a vehicle

The invention relates to an electronic communication module () for locking/unlocking at least one movable panel of a motor vehicle, including a resonant circuit adjusted to a timing frequency and including an transmission winding () connected in series to a tuning capacitor (), said resonant circuit () being capable of emitting a low-frequency interrogation signal, at said tuning frequency, to a portable badge or identifier, and a manually-actuated triggering member (), the actuation of which triggers the transmission of said interrogation signal. According to the invention, the triggering member is a button switch () connected in series to at least one resistor () in order to form an electric dipole (), and said electric dipole () is electrically connected in parallel to all or part of the resonant circuit (). The invention also relates to a central processing unit () for controlling said module through two electrical connection wires (), and to an associated hands-free access system.

Electronic communication module for locking/unlocking a movable panel of a motor vehicle, associated control central processing unit, and hands-free access system

The present invention relates to a hands-free system (SYS) for accessing a motor vehicle (V). Said system includes: a control member (COM) arranged in the motor vehicle (V); a detection member (CAPT) arranged in a door handle (P) of the motor vehicle (V), said detecting member being connected to said control member (COM) and capable of measuring a signal (S) representing a hand (M) approaching; and a sensitivity level (SEN) for which a corresponding threshold value (TH) is defined. Said control member (COM) is capable of sending a hands-free query to the motor vehicle (V) when the measured signal (S) exceeds the threshold value (TH) corresponding to the sensitivity level (SEN). Said hands-free system (SYS) is characterized in that it includes at least two sensitivity levels (SEN, SEN), that is, a first high-sensitivity level (SEN) and a second low-sensitivity level (SEN), and in that the control member (COM) is also capable of changing the sensitivity level (SEN, SEN) of the hands-free system (SYS) in response to a predetermined sequence (SQ) of events.

Hands-free system for motor vehicles

The invention relates to an access key () for unlocking a motor vehicle, comprising: &#x2014;a communication interface () configured so as to communicate according to an NFC protocol; &#x2014;a support containing data constituting service provision rights; &#x2014;a monitoring circuit () able to process a transaction by way of said communication interface () on the basis of said data constituting the service provision rights; characterized in that it comprises a housing () for receiving a support containing data constituting service provision rights of removable type (), and in that it comprises a read and/or write interface () in the removable support placed in the housing, the monitoring circuit () being configured so as to allow an exchange of data between the communication interface and the read/write interface.

Access key for a motor vehicle with near-field communication exchange capability

The invention relates to a method for detecting an identification object in an area (ZO) around an antenna device. The invention is characterized in that it comprises the following steps in which: a calibration signal (S_CAL) is emitted in the direction of the antenna device in order to determine a control power (PR); a functional signal (S_FONC) corresponding to the control power (PR) is emitted in the direction of the antenna device, such that the antenna device emits a predetermined magnetic field; the magnetic field (Br) received by the identification object, corresponding to the emitted magnetic field, is measured and compared with a nominal magnetic field (B); and, depending on the result of said comparison, it is determined if the identification object is located inside the area (ZO) around the antenna device. The invention is suitable for motor vehicles.

Method for detecting an identification object in a vehicle

The invention relates to a signal transmission/reception device (DER) which can cooperate with an antenna device (A) capable of emitting a magnetic field. The invention is characterized in that the device (DER) comprises the following elements for transmission, namely: a power stage (P) for sending a symmetrical square-wave voltage signal (U) to the input of the antenna device (A) in order to supply same with a current that can be used to generate the emitted magnetic field; and a current measuring stage (C) for measuring the current circulating in the antenna device (A). The invention is suitable for motor vehicles.

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Creteil, France

Eric Leconte