WO2022162071A1 - Procede d'activation d'une fonction d'un vehicule automobile et dispositif d'activation associe - Google Patents
Procede d'activation d'une fonction d'un vehicule automobile et dispositif d'activation associe Download PDFInfo
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- WO2022162071A1 WO2022162071A1 PCT/EP2022/051916 EP2022051916W WO2022162071A1 WO 2022162071 A1 WO2022162071 A1 WO 2022162071A1 EP 2022051916 W EP2022051916 W EP 2022051916W WO 2022162071 A1 WO2022162071 A1 WO 2022162071A1
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- Prior art keywords
- activation
- activation device
- user
- vehicle
- ultra
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/31—Detection related to theft or to other events relevant to anti-theft systems of human presence inside or outside the vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/411—Identification of targets based on measurements of radar reflectivity
- G01S7/412—Identification of targets based on measurements of radar reflectivity based on a comparison between measured values and known or stored values
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
- G01S13/872—Combinations of primary radar and secondary radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
- G01S7/006—Transmission of data between radar, sonar or lidar systems and remote stations using shared front-end circuitry, e.g. antennas
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—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
- G01S13/00—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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9316—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles combined with communication equipment with other vehicles or with base stations
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
- G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
- G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
Definitions
- the present invention relates to the automotive field and relates more particularly to a method for activating a function of a motor vehicle.
- the invention applies in particular to the function of locking and unlocking the openings of a motor vehicle.
- a motor vehicle it is known to use presence detection devices in order to detect the presence of a hand or a foot of a user of the vehicle and thus allow the locking or unlocking of all or part of the openings of the vehicle, for example the doors or the trunk.
- the detection of the presence of a user's hand on or in front of a door handle coupled with the recognition of an identifier of a "hands-free" access device carried by this user allows the locking and unlocking of these openings.
- a so-called “hands-free” access system to a motor vehicle allows an authorized user to lock and/or unlock the openings of his vehicle without having to physically press buttons on a key.
- the vehicle identifies portable equipment such as a badge or a remote control carried or even a key, by the user and if the badge or the remote control or the key is located in a predetermined area around the vehicle or in the vehicle and is identified as belonging to the vehicle, then the vehicle automatically locks/unlocks its openings according to the user's intention, without the user having to physically manipulate a key.
- the access device for example an electronic badge or a mobile telephone
- the detection device in order to authenticate said access device using its identifier.
- the detection device comprises an antenna allowing the reception of the identifier sent by the access device.
- the detection device is connected to an electronic computer of the vehicle ("ECU”: English abbreviation for "Electronic Control Unit”) to which it transmits the identifier.
- the access device is generally an electronic badge.
- the signal received by the antenna of the detection device including the identifier of the access device, is emitted via RF (Radio Frequency) or LF (Low Frequency) waves.
- the precise localization of the portable equipment around the vehicle is carried out by a measurement of the intensity of the LF signal received by the portable equipment (via the antennas and the electronic control unit) coming from the vehicle, more commonly called measurements RSSI (“Received Signal Strength Indication” in English, or measurement of the power in reception of a signal received by an antenna).
- RSSI Receiveived Signal Strength Indication
- the measurement of the power of the signal received by the portable equipment from each LF antenna is received and analyzed by a detection device, on board the vehicle, which thus determines the position of the portable equipment with respect to said LF antennas , that is to say with respect to the vehicle.
- Ultra wideband (UWB), or Ultra Large Band in French (ULB) is a radio modulation technique which is based on the transmission of very short pulses, often less than a nanosecond. Thus, the bandwidth can reach very large values.
- a detection device In order to detect the presence of the user's hand and allow the unlocking of the opening of the vehicle, such a detection device comprises in known manner a capacitive sensor.
- a capacitive sensor is dedicated to a detection zone, and according to the prior art, there is a capacitive sensor for the unlocking zone and a capacitive sensor for the locking zone, the two zones being distinct.
- such a capacitive sensor comprises a first capacitor charged and discharged periodically in a second capacitor. When discharging the first capacitor into the second capacitor, the charges balance between the two capacitors.
- detection by capacitive sensors is incompatible with handles covered with metallic paint or comprising chrome surfaces, the presence of metal in the handle creating a coupling with the detection zones and inhibiting the detection of a user's presence.
- the invention therefore proposes a method and device for activating a vehicle function making it possible to overcome the drawbacks of the prior art.
- the activation method according to the invention allows the location and authentication of the access device by Ultra Wide Band communication, it therefore not only makes it possible to dispense with capacitive sensors and to eliminate the disadvantages of the prior art related to the use of the capacitive technology listed above, but also to reduce the cost of the activation device.
- the presence of the user in a predetermined area is detected by determining a profile of reflected waves and comparing it with a predetermined profile.
- the detection of the presence of the user in a predetermined zone comprises a detection of a profile of reflected waves corresponding to a predetermined movement of a member of the user.
- a determination of a distance between the user and the activation device is carried out from a time corresponding to a maximum value of the profile of reflected waves.
- the authentication may include determining a distance between the enabling device and the portable access device.
- the distance is determined by a time of flight of messages exchanged between the portable device and the activation device in two-way communication during the authentication of the portable device.
- the activation device may further comprise means for determining a distance between the user and the activation device from a time corresponding to a maximum value of the wave profile received.
- the activation device may further comprise means for determining a distance between the portable access device and the activation device by calculating the time of flight of messages exchanged by ultra-wideband two-way communication between the device access and activation device.
- an ultra-wideband wave frequency is between 5 GHz and 8 GHz.
- the invention relates to any motor vehicle door, any motor vehicle door handle, or any motor vehicle comprising an activation device according to any one of the characteristics listed above.
- the is a schematic view representing a motor vehicle equipped with the activation device according to the invention
- the is a graph representing a profile of ultra-wideband waves reflected during a predetermined movement of a member of the user's body towards the activation device according to a second embodiment of the invention
- the is a flowchart representing the different steps of the activation method according to the invention.
- vehicle function we mean the locking/locking of the openings of the vehicle V, such as the driver's door, or the rear boot of the vehicle V, but also the switching on of the heated seats, the switching on of the ceiling light (" welcome lighting” in English or welcome light), or even the presetting of seats or a radio station, even before the user U has entered the vehicle.
- UWB ultra-wideband is meant a frequency band preferably between 5 GHz and 8 GHz over a frequency range preferably of 500 MHz.
- the transmission/reception means M1 of ultra-wideband waves consist of a transmitter and a receiver, these means are known to those skilled in the art and will not be further detailed here.
- Said transmitted waves are generated by voltage pulses at a predetermined frequency, for example every millisecond.
- the antenna A and the transmission/reception means M1 make it possible to exchange ultra-wideband signals with the portable access device SD.
- the means M2 for determining an ultra-wideband wave profile received comprise means for determining a parameter called CIR ("Channel Impulse Response" in English or impulse response), that is to say means for measurement of the received waves sampled according to time.
- CIR Channel Impulse Response
- the frequency measurements of the waves received are transformed by the inverse of a Fourier Transform in order to generate values in time units.
- the amplitude of the CIR consists of the absolute value of the real part and the imaginary part of the values in time unit
- the phase of the CIR consists of the arctangent of the ratio of the imaginary part divided by the part of the values in time unit.
- the determination means M2 comprise a clock H making it possible to determine the amplitude or the phase CIR according to the time t. As will be specified below, the clock is started when the waves are transmitted by the activation device D.
- the activation device D further comprises means M5 for determining (not shown) a distance d between the user U and the vehicle V.
- the determination of the distance d is calculated from the instant tmax when the amplitude value CIR is maximum CIRmax, using the following formula:
- the activation device D comprises a clock which is triggered during the emission of the waves.
- the start instant of the time measurement t corresponds to the instant of emission of the waves by the activation device D.
- the activation device further comprises the means for calculating M6 (not shown ) the distance d between the portable access device SD and the activation device D from the calculation of a time of flight tv of messages exchanged by said two-way communication in ultra-wideband UWB between the access device D and the activation device SD.
- M6 the distance between the portable access device SD and the activation device D
- UWB ultra-wideband
- Detection means M3 are for example in the form of software means.
- the M4 authentication means are for example in the form of software means, known per se.
- the antenna A, the transmission/reception means M1, the determination means M2, the presence detection means M3 and the authentication means M4, the means M5 for determining a distance d and the calculation means M6 by a distance of can be located on a printed circuit 20 and connected to a microcontroller (not shown).
- the activation device D is electronically connected to an electronic central unit 10 on board the vehicle, itself connected to means for triggering the function.
- the central unit 10 according to the information it receives from the activation device D, presence or absence of a user U in a predetermined zone ZD, successful or failed authentication of the portable device SD, then controls the triggering means of unlocking/locking the doors, operating the heated seats, pre-adjusting the seats or the radio stations, etc.
- the activation device D is preferably located in the opening or close to the opening if the function to be activated is the locking/unlocking of the opening, it can be located in a vehicle door handle V, in the door or a door pillar of the vehicle V, or else in the bumper or near the boot of the vehicle V.
- the activation of such and such a function can be triggered.
- the predetermined zone ZD located around the vehicle V in which the user U carrying the authenticated access device SD is located.
- the activation of such and such a function can be triggered.
- the triggering of the seat heating can be triggered if the user U carrying the authenticated SD access device is located in a zone ZD far from the vehicle, that is to say a few meters away, but the unlocking cannot be triggered only if the user U wearing the authenticated SD access device is close to the opening, that is to say a few centimeters away.
- a first step E1 the activation device D is operated in ultra-wideband mode, called “reflective", more precisely voltage pulses are generated at a regular frequency, which causes the emission of ultra-wideband radio frequency waves, preferentially but not limiting in themselves, over a range of 500 Hz to a frequency between 5 MHz and 8 MHz.
- these waves or signals transmitted in reflective UWB do not contain a message as such requiring a response from the SD portable access device, they only include an identifier specific to the transmitter/receiver of the activation device D, that is to say specific to the activation device D.
- This identifier allows the activation device D when UWB waves are received by said device to recognize that said waves that it receives correspond to the waves that it has emitted, and that consequently said waves have indeed been reflected by any body present in their emission zone, in particular a user U.
- a second step E2 it is checked whether the user U is in a predetermined zone ZD around the vehicle V.
- the profile of the waves reflected and which are received by the activation device D is analyzed. is illustrated in , more precisely, the amplitude of the parameter CIR is determined according to time t, this parameter is well known to those skilled in the art, and will not be further detailed here.
- To the a typical CIR amplitude profile of the waves received is shown according to time t when the waves have been reflected by a human body U.
- the start time of the time measurement t corresponds to the time of emission of the waves by the activation device D.
- a clock H included in the activation device D makes it possible to measure the time t between the emission of the waves and their reception.
- Profile P1 presents a peak with a maximum amplitude value CIRmax.
- the instant tmax where the amplitude value CIR is the maximum CIRmax makes it possible to determine the distance d between the activation device D and said human body,
- Tmax the instant when the maximum value of the CIR amplitude is reached (Tmax is also called “tap” by those skilled in the art or listening in French in the radiofrequency domain).
- the profile P1 corresponds to the predetermined profile, i.e. including a peak, then the waves have been reflected by a body.
- the tmax it is thus possible to determine whether this body U is located in a predetermined zone ZD around the vehicle V.
- the phase of the CIR parameter can be used instead of the amplitude of the CIR parameter.
- step E3 If a body U is located in the predetermined zone ZD, and if the activation of a function F is possible in this zone, (step E3), then the portable device SD is authenticated (step E5), otherwise the profile of the reflected waves is compared with other predetermined profiles, as explained below.
- the activation device D switches from reflective UWB mode to a bidirectional UWB communication mode.
- the two-way communication mode in UWB allows the exchange of messages between the activation device D and the portable access device SD. More precisely, the activation device D sends a message in ULB to the portable access device SD comprising an authentication request. It is then checked whether the identifier returned by the portable device SD corresponds to an identifier pre-recorded by the vehicle V and previously paired with it (step E6).
- step E7a If the portable SD access device is correctly authenticated then the function is activated (step E7a), otherwise the function is not activated (step E7b).
- step E2 of determining the presence of the user U in the predetermined zone ZD If, at the end of step E2 of determining the presence of the user U in the predetermined zone ZD, no function F activation is possible in said zone (or even when a function F has been activated ), then the profile of the reflected waves is compared with other predetermined profiles P2, P3. This is illustrated in Figures 4 and 5.
- step E7a the method can continue by performing step E4 and comparing the profile of the reflected waves with the other profiles P2, P3 in order to activate other functions, in particular the unlocking of the opening elements. This is illustrated by an arrow connecting step E7a to step E4.
- This profile P2 comprises the exceeding of a threshold value S2 for a predetermined duration ⁇ t as well as a peak of maximum amplitude value CIRmax′ during said duration.
- the profile P3 of the corresponds to a back and forth movement, also called a "kick" movement, of the lower leg of the user U in front of a bumper of the motor vehicle V in which the activation device D is located.
- the profile P3 comprises the exceeding of a threshold value S3 for a predetermined duration ⁇ t' as well as two peaks of amplitude values CIRmax1 and CIRmax2 during said duration.
- the CIR amplitude profile of reflected waves corresponds to this predetermined profile, it is then considered that the user U has performed the predetermined out-and-back movement with his leg in front of the bumper of his vehicle and that he wishes to open the trunk of his vehicle V.
- the phase of the CIR can be used instead of the amplitude of the CIR.
- the portable access device SD is authenticated in step E5 as described previously.
- step E7a the function is activated (step E7a), in this example, the trunk of the vehicle V is opened, otherwise the function is not activated (step E7b).
- the invention therefore makes it possible in an ingenious way, by the use of ultra-wideband in two different modes, the reflective mode and the two-way communication mode, to overcome the drawbacks of the prior art.
- the invention allows access to his vehicle with his mobile phone, while doing away with capacitive approach detection sensors of the prior art, which are expensive and which present reliability problems.
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- la détection de présence de l’utilisateur dans la zone prédéterminée est réalisée par un profil prédéterminé d’ondes ultra large bande émises par le dispositif d’activation dans un mode dit d’ultra large bande réflectif et réfléchies par l’utilisateur,
- l’authentification du dispositif portable est réalisée par une communication en ultra large bande bidirectionnelle entre le dispositif d’activation et le dispositif d’accès portable.
- Une antenne reliée à des moyens d’émission et de réception d’ondes en ultra large bande,
- Des moyens de détermination d’un profile d’ondes ultra large bande reçues et de comparaison avec un profil prédéterminé,
- Des moyens de détection de la présence de l’utilisateur dans une zone prédéterminée autour du véhicule en fonction du résultat de la comparaison,
- Des moyens d’authentification du dispositif d’accès portable par communication bidirectionnelle en ultra large bande.
- détecter la présence d’un utilisateur U dans une zone prédéterminée ZD autour du véhicule V,
- d’authentifier le dispositif d’accès portable SD porté par l’utilisateur,
- Une antenne A reliée à des moyens d’émission et de réception M1 d’ondes en ultra large bande,
- Des moyens de détermination M2 d’un profile d’ondes ultra large bande reçues et de comparaison avec un profil prédéterminé P1, P2, P3,
- Des moyens de détection de la présence M3 de l’utilisateur U dans une zone prédéterminée ZD autour du véhicule V en fonction du résultat de la comparaison,
- Des moyens d’authentification M4 du dispositif d’accès portable SD par communication bidirectionnelle en ultra large bande.
Claims (10)
- Procédé d’activation d’une fonction d’un véhicule automobile (V) par un dispositif d’activation (D), à partir d’un dispositif d’accès portable (SD) porté par un utilisateur (U) l’activation de la fonction étant déclenchée par une détection de présence de l’utilisateur (U) dans une zone prédéterminée (ZD) autour du véhicule (V), et en fonction d’un résultat d’authentification du dispositif portable d’accès (SD) par le véhicule (V), le procédé étant caractérisé en ce que :
- la détection de présence de l’utilisateur (U) dans la zone prédéterminée (ZD) est réalisée par un profil prédéterminé (P1, P2, P3) comprenant au moins un pic, d’ondes ultra large bande émises dans un mode dit d’ultra large bande réflectif, par le dispositif d’activation (D) et réfléchies par un corps, les dites ondes comportant uniquement un identifiant propre à un émetteur récepteur du dispositif d’activation,
- détermination d’une distance (d) entre le dit dispositif d’activation (D) et le corps à partir d’un instant (tmax) correspondant à une amplitude maximum du pic,
- Si le corps se situe dans la zone prédéterminée (ZD), alors,
- l’authentification du dispositif portable (SD) est réalisée par une communication en ultra large bande bidirectionnelle entre le dispositif d’activation (D) et le dispositif d’accès portable (SD) permettant un échange de messages entre ledit dispositif d’activation (D) et le dispositif d’accès portable (SD).
- Procédé d’activation, selon la revendication précédente caractérisé en ce que la détection de présence de l’utilisateur (U) dans une zone prédéterminée (ZD) comprend une détection d’un profil d’ondes réfléchies (P2, P3) correspondant à un mouvement prédéterminé d’un membre de l’utilisateur (U).
- Procédé d’activation, selon l’une quelconque des revendications précédentes, caractérisé en ce que l’authentification comprend une détermination d’une distance (d’) entre le dispositif d’activation (D) et le dispositif d’accès portable (SD).
- Procédé d’activation, selon la revendication précédente, caractérisé en ce que la distance (d’) est déterminée par un temps de vol (tv) de messages échangés entre le dispositif portable (SD) et le dispositif d’activation (D) en communication bidirectionnelle lors de l’authentification du dispositif portable (SD).
- Dispositif d’activation (D), d’une fonction véhicule à partir d’un dispositif d’accès portable (SD) porté par un utilisateur (U), le dispositif d’activation (D) étant destiné à être embarqué dans ledit véhicule automobile (V), l’activation de la fonction étant déclenchée par la détection de présence de l’utilisateur (U) dans une zone prédéterminée (ZD) autour du véhicule (V), et en fonction d’un résultat d’authentification du dispositif portable d’accès (SD), le dispositif d’activation (SD) étant caractérisé en ce qu’il comprend :
- Une antenne (A) reliée à des moyens d’émission et de réception (M1) d’ondes en ultra large bande,
- Des moyens de détermination (M2) d’un profile d’ondes ultra large bande reçues et de comparaison avec un profil prédéterminé (P1, P2, P3) comprenant un pic,
- Des moyens de détection (M3) de la présence d’un corps dans une zone prédéterminée (ZD) autour du véhicule (V) en fonction du résultat de la comparaison,
- des moyens de détermination (M5) d’une distance (d) entre le corps et le dispositif d’activation (D) à partir d’un instant (tmax) correspondant à une valeur maximale (CIRmax) du pic,
- Des moyens d’authentification (M4) du dispositif d’accès portable (SD) par communication bidirectionnelle en ultra large bande.
- Dispositif d’activation (SD) selon la revendication 5, caractérisé en ce qu’il comprend en outre des moyens de détermination (M6) d’une distance (d’) entre le dispositif d’accès portable (SD) et le dispositif d’activation (D) par un calcul de temps de vol (tv) de messages échangés par communication bidirectionnelle en ultra large bande entre le dispositif d’accès (D) et le dispositif d’activation (SD).
- Dispositif d’activation (D), selon l’une quelconque des revendications 5 ou 6 caractérisé en ce qu’une fréquence des ondes ultra large bande est comprise entre 5 GHz et 8 GHz.
- Portière de véhicule automobile (V) caractérisée en ce qu’elle comprend un dispositif d’activation (D) selon l’une quelconque des revendications 5 à 7.
- Poignée (P) de portière de véhicule automobile (V), caractérisée en ce qu’elle comprend un dispositif d’activation (D) selon l’une quelconque des revendications 5 à 7.
- Véhicule automobile (V) caractérisé en ce qu’il comprend un dispositif d’activation (D) selon l’une quelconque des revendications 5 à 7.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280012335.8A CN116829976A (zh) | 2021-01-29 | 2022-01-27 | 用于激活机动车辆功能的方法和关联的激活设备 |
US18/272,657 US12145536B2 (en) | 2021-01-29 | 2022-01-27 | Method for activating a motor vehicle function and associated activation device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR2100852A FR3119465B1 (fr) | 2021-01-29 | 2021-01-29 | Procede d’activation d’une fonction d’un vehicule automobile et dispositif d’activation associe |
FRFR2100852 | 2021-01-29 |
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WO2022162071A1 true WO2022162071A1 (fr) | 2022-08-04 |
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PCT/EP2022/051916 WO2022162071A1 (fr) | 2021-01-29 | 2022-01-27 | Procede d'activation d'une fonction d'un vehicule automobile et dispositif d'activation associe |
Country Status (3)
Country | Link |
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CN (1) | CN116829976A (fr) |
FR (1) | FR3119465B1 (fr) |
WO (1) | WO2022162071A1 (fr) |
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FR3142562B1 (fr) * | 2022-11-24 | 2024-10-11 | Continental Automotive Tech Gmbh | Procede adaptatif d’activation d’une fonction vehicule et dispositif adaptatif d’activation associe |
Citations (7)
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US20150009062A1 (en) * | 2013-07-02 | 2015-01-08 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Object detection device for a vehicle and vehicle having the object detection device |
JP2016035195A (ja) * | 2014-07-31 | 2016-03-17 | 株式会社ユーシン | 車両開閉体制御装置、車両開閉体制御方法及びプログラム |
GB2547475A (en) * | 2016-02-22 | 2017-08-23 | Jaguar Land Rover Ltd | Providing gesture-initiated operation feedback |
US20190263358A1 (en) * | 2016-12-05 | 2019-08-29 | Denso Corporation | Mobile device position estimation system |
US20200363524A1 (en) * | 2019-05-13 | 2020-11-19 | Samsung Electronics Co., Ltd. | Method for performing distance measurement and authentication concurrently and electronic device thereof |
WO2020253856A1 (fr) * | 2019-06-20 | 2020-12-24 | 华为技术有限公司 | Procédé de déverrouillage de serrure intelligente et dispositif associé |
WO2021008930A1 (fr) * | 2019-07-17 | 2021-01-21 | Vitesco Technologies GmbH | Procede d'ouverture d'un ouvrant de vehicule automobile par detection de mouvement, utilisant un radar doppler et dispositif de detection associe |
-
2021
- 2021-01-29 FR FR2100852A patent/FR3119465B1/fr active Active
-
2022
- 2022-01-27 CN CN202280012335.8A patent/CN116829976A/zh active Pending
- 2022-01-27 WO PCT/EP2022/051916 patent/WO2022162071A1/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20150009062A1 (en) * | 2013-07-02 | 2015-01-08 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Object detection device for a vehicle and vehicle having the object detection device |
JP2016035195A (ja) * | 2014-07-31 | 2016-03-17 | 株式会社ユーシン | 車両開閉体制御装置、車両開閉体制御方法及びプログラム |
GB2547475A (en) * | 2016-02-22 | 2017-08-23 | Jaguar Land Rover Ltd | Providing gesture-initiated operation feedback |
US20190263358A1 (en) * | 2016-12-05 | 2019-08-29 | Denso Corporation | Mobile device position estimation system |
US20200363524A1 (en) * | 2019-05-13 | 2020-11-19 | Samsung Electronics Co., Ltd. | Method for performing distance measurement and authentication concurrently and electronic device thereof |
WO2020253856A1 (fr) * | 2019-06-20 | 2020-12-24 | 华为技术有限公司 | Procédé de déverrouillage de serrure intelligente et dispositif associé |
WO2021008930A1 (fr) * | 2019-07-17 | 2021-01-21 | Vitesco Technologies GmbH | Procede d'ouverture d'un ouvrant de vehicule automobile par detection de mouvement, utilisant un radar doppler et dispositif de detection associe |
Also Published As
Publication number | Publication date |
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US20240034274A1 (en) | 2024-02-01 |
FR3119465A1 (fr) | 2022-08-05 |
CN116829976A (zh) | 2023-09-29 |
FR3119465B1 (fr) | 2023-02-24 |
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