EP1211649B2 - Vehicle door handle comprising a proximity sensor and a tactile sensor cooperating with a hand-free access system - Google Patents

Vehicle door handle comprising a proximity sensor and a tactile sensor cooperating with a hand-free access system Download PDF

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Publication number
EP1211649B2
EP1211649B2 EP01128120.1A EP01128120A EP1211649B2 EP 1211649 B2 EP1211649 B2 EP 1211649B2 EP 01128120 A EP01128120 A EP 01128120A EP 1211649 B2 EP1211649 B2 EP 1211649B2
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EP
European Patent Office
Prior art keywords
sensor
tactile sensor
periods
sensors
electronic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01128120.1A
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German (de)
French (fr)
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EP1211649A1 (en
EP1211649B1 (en
Inventor
Jean Eidesheim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Comfort and Driving Assistance SAS
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Application filed by Valeo Comfort and Driving Assistance SAS filed Critical Valeo Comfort and Driving Assistance SAS
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • E05B81/78—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles as part of a hands-free locking or unlocking operation
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • E05B81/77—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles comprising sensors detecting the presence of the hand of a user
    • 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
    • G07C2009/00365—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 in combination with a wake-up circuit
    • G07C2009/00373—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 in combination with a wake-up circuit whereby the wake-up circuit is situated in the lock
    • 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
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor

Definitions

  • the invention relates to a door handle for a motor vehicle, comprising an approach sensor intended to operate with a hands-free access system fitted to the vehicle.
  • a vehicle equipped with a hands-free access system allows an authorized user of the vehicle to enter the vehicle without having to handle a key or remote control.
  • the recognition device of the hands-free access system triggers a user identification authentication procedure carried by the user in response to the detection by the approach sensor of the presence of the user. After authentication of the identification member, the recognition device triggers the unlocking of one or more openings of the vehicle.
  • the object of the invention is to overcome this disadvantage.
  • the subject of the invention is a door handle for a motor vehicle according to claim 1.
  • the approach sensor and the touch sensor are capacitive sensors, and said sensors operate with the hands-free access system through an electronic circuit that activates each of said sensors one after the other, so that these sensors do not move. do not disturb each other.
  • this type of sensor the manufacturing cost of such a handle is reduced while avoiding the disadvantages of optical sensors.
  • the electronic circuit and said sensors are integrated in a housing mounted inside the handle.
  • the electronic circuit is arranged to alternate first periods of time during which it activates the approach sensor and deactivates the touch sensor, with second periods during which the approach sensor is inactive, and to activate the sensor touch during some of said second periods. In this way, the power consumption of the circuits in the handle is reduced.
  • the electronic circuit is arranged to activate the touch sensor at least a second period in five, and thus a satisfactory compromise between consumption and reaction time of the touch sensor is obtained.
  • the electronic circuit in response to the detection of a touch of the hand applied to the touch sensor during one of said second periods, activates the touch sensor for a predetermined number of seconds. second successive periods so that the detection corresponds to several successive detections of a contact applied to said touch sensor.
  • the electronic circuit ensures that the solicitation of the touch sensor corresponds to a voluntary contact of the user on the sensor and not the stealthy passage of his hand on this sensor.
  • the handle according to the invention comprises an electronic circuit CE represented on the figure 1 , which is connected to an AC approach sensor and a CT touch sensor.
  • This electronic circuit is directly powered by a battery of the vehicle to which it is connected by cables marked + and -, and it comprises a microcontroller clocked by an internal clock so that it is able to drive both AC sensors autonomously. and CT.
  • This circuit has two outputs SA and ST connected to a recognition device of the hands-free access system of the vehicle (not shown) to operate with the latter.
  • the cables are joined at a connector CN intended for example to be placed on the inside of the PE skin of the opening, as shown in FIG. figure 2 .
  • the circuit CE When the user approach is detected by the circuit CE at the AC sensor, this circuit sends a signal on the SA channel, and when a user support on the touch sensor CT is detected, the circuit emits a signal on the ST channel.
  • the recognition device is programmed to trigger an authentication attempt as soon as a user's approach it is meant on the SA lane, and to control the unlocking of the sash if the authentication attempt is successful.
  • the recognition device comprises means for controlling the locking of the sash when the support of the user on the touch sensor CT is reported to him on the track ST by the circuit CE.
  • the handle PO according to the invention may comprise the sensors and the circuit assembled in a substantially parallelepiped-shaped housing BO built for example at the inside of the handle.
  • the approach sensor and / or the tactile sensor of the circuit according to the invention may advantageously be capacitive sensors, consisting of an electrode also called antenna which is energized with respect to the mass of the vehicle.
  • capacitive sensors consisting of an electrode also called antenna which is energized with respect to the mass of the vehicle.
  • the approach of the hand of the user varies the dielectric characteristics of the environment of the sensor, which modifies the impedance of the dipole formed by the electrode and its environment.
  • Such sensors are known from the prior art and are for example of a simpler implementation than the sensors associating a photocell with a light beam.
  • the approach sensor of the handle according to the invention is a capacitive sensor having a greater sensitivity than the touch sensor.
  • the electronic circuit CE is arranged to activate (switch on) the sensors one after the other so as to prevent the operation of one of the sensors disturbing the operation of the other.
  • the CE circuit can activate the touch sensor and the approach sensor successively, with an activation period of the order of five milliseconds per sensor. With such a time base, the two sensors have an operation that can be approximated as being continuous for one and the other, without mutual disturbance.
  • the circuit CE will be arranged to alternate first periods P1 during which it activates the AC approach sensor and deactivates the touch sensor CT, with second periods P2 during which the approach sensor is inactive.
  • the touch sensor is activated only during some of the second periods P2, which gives a shorter reaction time to the approach sensor CA which is intended for unlocking the door, and a longer response time to touch sensor, for locking the vehicle. It is indeed important to promote a quick reaction time for unlocking the door, so that the user does not have to wait between the moment he puts his hand on the handle and the moment he can pull top to open the opening and ride in his vehicle.
  • the touch sensor may for example be activated every five seconds periods, which satisfies a satisfactory compromise between reducing consumption and reaction time of the touch sensor.
  • the electronic circuit activates the touch sensor for a predetermined number of second successive periods.
  • the detection corresponds to several successive detections of said contact on said sensor, which makes it possible to ensure that it is a voluntary support of the user on the touch sensor, and not the stealth passage of his finger on this sensor.
  • the handle according to the invention makes it possible to use two capacitive sensors to improve the ergonomics of the hands-free access systems.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Description

L'invention concerne une poignée d'ouvrant pour véhicule automobile, comprenant un capteur d'approche destiné à fonctionner avec un système d'accès mains libres équipant le véhicule.The invention relates to a door handle for a motor vehicle, comprising an approach sensor intended to operate with a hands-free access system fitted to the vehicle.

D'une manière générale, un véhicule équipé d'un système d'accès mains libres permet à un utilisateur autorisé du véhicule d'entrer dans celui-ci sans avoir à manipuler de clé ou de télécommande. Le dispositif de reconnaissance du système d'accès mains libres déclenche une procédure d'authentification d'un organe d'identification porté par l'utilisateur en réponse à la détection par le capteur d'approche de la présence de l'utilisateur. Après authentification de l'organe d'identification, le dispositif de reconnaissance déclenche le déverrouillage d'un ou de plusieurs ouvrants du véhicule.In general, a vehicle equipped with a hands-free access system allows an authorized user of the vehicle to enter the vehicle without having to handle a key or remote control. The recognition device of the hands-free access system triggers a user identification authentication procedure carried by the user in response to the detection by the approach sensor of the presence of the user. After authentication of the identification member, the recognition device triggers the unlocking of one or more openings of the vehicle.

Pour déclencher le verrouillage des ouvrants d'un tel véhicule, il est généralement nécessaire à l'utilisateur d'actionner un bouton poussoir de l'organe d'identification portatif, qui joue alors un rôle de télécommande, ou de quitter une zone de communication entre le dispositif de reconnaissance et l'organe d'identification pour que le dispositif de reconnaissance commande implicitement le verrouillage du véhicule. Un exemple de dispositif de verrouillage d'un véhicule est connu de EP-A-984 123 To trigger the locking of the opening of such a vehicle, it is generally necessary for the user to actuate a push button of the portable identification device, which then acts as a remote control, or to leave a communication area between the recognition device and the identification device so that the recognition device implicitly controls the locking of the vehicle. An example of a locking device of a vehicle is known from EP-A-984,123

L'inconvénient de ces deux modes de fonctionnement du système d'accès mains libres est qu'ils ne permettent pas à l'utilisateur de déclencher le verrouillage du véhicule en restant placé à proximité de celui-ci pour vérifier que le verrouillage a bien lieu, ou sans avoir à manipuler l'organe d'identification portatif.The disadvantage of these two modes of operation of the hands-free access system is that they do not allow the user to trigger the locking of the vehicle by remaining close to it to verify that the locking takes place , or without having to manipulate the portable identification device.

Le but de l'invention est de remédier à cet inconvénient.The object of the invention is to overcome this disadvantage.

A cet effet, l'invention a pour objet une poignée d'ouvrant pour véhicule automobile selon la revendication 1.For this purpose, the subject of the invention is a door handle for a motor vehicle according to claim 1.

Le capteur d'approche et le capteur tactile sont des capteurs capacitifs, et lesdits capteurs fonctionnent avec le système d'accès mains libres à travers un circuit électronique qui active chacun desdits capteurs l'un après l'autre, pour que ces capteurs ne se perturbent pas mutuellement. Avec ce type de capteurs, le coût de fabrication d'une telle poignée est réduit tout en évitant les inconvénients que présentent les capteurs optiques.The approach sensor and the touch sensor are capacitive sensors, and said sensors operate with the hands-free access system through an electronic circuit that activates each of said sensors one after the other, so that these sensors do not move. do not disturb each other. With this type of sensor, the manufacturing cost of such a handle is reduced while avoiding the disadvantages of optical sensors.

Selon encore un mode de réalisation particulier de l'invention le circuit électronique et lesdits capteurs sont intégrés à un boîtier monté à l'intérieur de la poignée.According to another particular embodiment of the invention the electronic circuit and said sensors are integrated in a housing mounted inside the handle.

Selon l'invention le circuit électronique est agencé pour alterner des premières périodes de temps durant lesquelles il active le capteur d'approche et désactive le capteur tactile, avec des secondes périodes pendant lesquelles le capteur d'approche est inactif, et pour activer le capteur tactile durant certaines desdites secondes périodes. De la sorte, on réduit la consommation électrique des circuits dans la poignée.According to the invention the electronic circuit is arranged to alternate first periods of time during which it activates the approach sensor and deactivates the touch sensor, with second periods during which the approach sensor is inactive, and to activate the sensor touch during some of said second periods. In this way, the power consumption of the circuits in the handle is reduced.

Selon encore un autre mode de réalisation particulier de l'invention le circuit électronique est agencé pour activer le capteur tactile au moins une seconde période sur cinq, et on obtient ainsi un compromis satisfaisant entre consommation et temps de réaction du capteur tactile.According to yet another particular embodiment of the invention the electronic circuit is arranged to activate the touch sensor at least a second period in five, and thus a satisfactory compromise between consumption and reaction time of the touch sensor is obtained.

Selon encore un autre mode de réalisation particulier de l'invention, en réponse à la détection d'un contact de la main appliqué sur le capteur tactile pendant l'une desdites secondes périodes, le circuit électronique active le capteur tactile pendant un nombre prédéterminé de secondes périodes successives pour que la détection corresponde à plusieurs détections successives d'un contact appliqué audit capteur tactile. Avec cet agencement, le circuit électronique s'assure que la sollicitation du capteur tactile correspond à une contact volontaire de l'utilisateur sur le capteur et non pas au passage furtif de sa main sur ce capteur.According to yet another particular embodiment of the invention, in response to the detection of a touch of the hand applied to the touch sensor during one of said second periods, the electronic circuit activates the touch sensor for a predetermined number of seconds. second successive periods so that the detection corresponds to several successive detections of a contact applied to said touch sensor. With this arrangement, the electronic circuit ensures that the solicitation of the touch sensor corresponds to a voluntary contact of the user on the sensor and not the stealthy passage of his hand on this sensor.

L'invention sera maintenant décrite plus en détail, et en référence aux dessins annexés qui en illustrent une forme de réalisation à titre d'exemple non limitatif.

  • La figure 1 est une représentation schématique des éléments que comprend la poignée selon l'invention ;
  • La figure 2 est une représentation très schématique de la poignée selon l'invention ;
  • La figure 3 est un diagramme illustrant la gestion des capteurs par le circuit électronique.
The invention will now be described in more detail and with reference to the accompanying drawings which illustrate an embodiment thereof by way of non-limiting example.
  • The figure 1 is a schematic representation of the elements that comprises the handle according to the invention;
  • The figure 2 is a very schematic representation of the handle according to the invention;
  • The figure 3 is a diagram illustrating the management of the sensors by the electronic circuit.

La poignée selon l'invention comprend un circuit électronique CE représenté sur la figure 1, qui est connecté à un capteur d'approche CA et à un capteur tactile CT. Ce circuit électronique est directement alimenté par une batterie du véhicule à laquelle il est connecté par des câbles repérés + et -, et il comprend un microcontrôleur cadencé par une horloge interne de sorte qu'il est capable de piloter de façon autonome les deux capteurs CA et CT. Ce circuit a deux sorties SA et ST connectées à un dispositif de reconnaissance du système d'accès mains libres du véhicule (non représenté) pour fonctionner avec ce dernier. Les câbles sont réunis au niveau d'un connecteur CN destiné par exemple à être placé du côté intérieur de la peau PE de l'ouvrant, comme représenté sur la figure 2. Lorsque l'approche de l'utilisateur est détectée par le circuit CE au niveau du capteur CA, ce circuit émet un signal sur la voie SA, et lorsqu'un appui de l'utilisateur sur le capteur tactile CT est détecté, le circuit émet un signal sur la voie ST. Le dispositif de reconnaissance est programmé pour déclencher une tentative d'authentification dès que l'approche d'un utilisateur lui est signifiée sur la voie SA, et pour commander le déverrouillage de l'ouvrant si la tentative d'authentification est un succès. De façon similaire, le dispositif de reconnaissance comprend des moyens pour commander le verrouillage de l'ouvrant lorsque l'appui de l'utilisateur sur le capteur tactile CT lui est signalé sur la voie ST par le circuit CE.The handle according to the invention comprises an electronic circuit CE represented on the figure 1 , which is connected to an AC approach sensor and a CT touch sensor. This electronic circuit is directly powered by a battery of the vehicle to which it is connected by cables marked + and -, and it comprises a microcontroller clocked by an internal clock so that it is able to drive both AC sensors autonomously. and CT. This circuit has two outputs SA and ST connected to a recognition device of the hands-free access system of the vehicle (not shown) to operate with the latter. The cables are joined at a connector CN intended for example to be placed on the inside of the PE skin of the opening, as shown in FIG. figure 2 . When the user approach is detected by the circuit CE at the AC sensor, this circuit sends a signal on the SA channel, and when a user support on the touch sensor CT is detected, the circuit emits a signal on the ST channel. The recognition device is programmed to trigger an authentication attempt as soon as a user's approach it is meant on the SA lane, and to control the unlocking of the sash if the authentication attempt is successful. Similarly, the recognition device comprises means for controlling the locking of the sash when the support of the user on the touch sensor CT is reported to him on the track ST by the circuit CE.

La poignée PO selon l'invention, telle que représentée sur la figure 2 pourra comprendre les capteurs et le circuit rassemblés dans un boîtier BO de forme sensiblement parallélépipédique intégré par exemple au niveau de l'intérieur de la poignée.The handle PO according to the invention, as represented on the figure 2 may comprise the sensors and the circuit assembled in a substantially parallelepiped-shaped housing BO built for example at the inside of the handle.

Le capteur d'approche et/ou le capteur tactile du circuit selon l'invention pourront avantageusement être des capteurs capacitifs, constitués d'une électrode encore appelée antenne qui est mise sous tension par rapport à la masse du véhicule. Dans de tels capteurs, l'approche de la main de l'utilisateur fait varier les caractéristiques diélectriques de l'environnement du capteur, ce qui modifie l'impédance du dipôle constitué par l'électrode et son environnement. De tels capteurs sont connus de l'art antérieur et sont par exemple d'une mise en oeuvre plus simple que les capteurs associant une cellule photoélectrique à un faisceau lumineux. Le capteur d'approche de la poignée selon l'invention est un capteur capacitif ayant une sensibilité plus importante que le capteur tactile.The approach sensor and / or the tactile sensor of the circuit according to the invention may advantageously be capacitive sensors, consisting of an electrode also called antenna which is energized with respect to the mass of the vehicle. In such sensors, the approach of the hand of the user varies the dielectric characteristics of the environment of the sensor, which modifies the impedance of the dipole formed by the electrode and its environment. Such sensors are known from the prior art and are for example of a simpler implementation than the sensors associating a photocell with a light beam. The approach sensor of the handle according to the invention is a capacitive sensor having a greater sensitivity than the touch sensor.

Dans une telle variante, le circuit électronique CE est agencé pour activer (mettre sous tension) les capteurs l'un après l'autre de manière à éviter que le fonctionnement de l'un des capteurs ne perturbe le fonctionnement de l'autre. Par exemple, le circuit CE pourra activer le capteur tactile et le capteur d'approche successivement, avec une période d'activation de l'ordre de cinq millisecondes par capteur. Avec une telle base de temps, les deux capteurs ont un fonctionnement qui peut être approximé comme étant continu pour l'un et pour l'autre, sans perturbation mutuelle.In such a variant, the electronic circuit CE is arranged to activate (switch on) the sensors one after the other so as to prevent the operation of one of the sensors disturbing the operation of the other. For example, the CE circuit can activate the touch sensor and the approach sensor successively, with an activation period of the order of five milliseconds per sensor. With such a time base, the two sensors have an operation that can be approximated as being continuous for one and the other, without mutual disturbance.

En variante, et en vue de réduire la consommation électrique de la poignée selon l'invention, le circuit CE sera agencé pour alterner des premières périodes P1 de temps durant lesquelles il active le capteur d'approche CA et désactive le capteur tactile CT, avec des secondes périodes P2 pendant lesquelles le capteur d'approche est inactif. Dans cette variante, le capteur tactile est activé seulement pendant certaines des secondes périodes P2, ce qui confère un temps de réaction plus court au capteur d'approche CA qui est destiné au déverrouillage de l'ouvrant, et un temps de réponse plus long au capteur tactile, pour le verrouillage du véhicule. Il est en effet important de favoriser un temps de réaction rapide pour le déverrouillage de l'ouvrant, pour que l'utilisateur n'ait pas à attendre entre l'instant où il pose sa main sur la poignée et le moment où il peut tirer dessus pour ouvrir l'ouvrant et monter dans son véhicule. Le capteur tactile pourra être par exemple activé toutes les cinq secondes périodes, ce qui satisfait à un compromis satisfaisant entre réduction de la consommation et temps de réaction du capteur tactile.Alternatively, and in order to reduce the power consumption of the handle according to the invention, the circuit CE will be arranged to alternate first periods P1 during which it activates the AC approach sensor and deactivates the touch sensor CT, with second periods P2 during which the approach sensor is inactive. In this variant, the touch sensor is activated only during some of the second periods P2, which gives a shorter reaction time to the approach sensor CA which is intended for unlocking the door, and a longer response time to touch sensor, for locking the vehicle. It is indeed important to promote a quick reaction time for unlocking the door, so that the user does not have to wait between the moment he puts his hand on the handle and the moment he can pull top to open the opening and ride in his vehicle. The touch sensor may for example be activated every five seconds periods, which satisfies a satisfactory compromise between reducing consumption and reaction time of the touch sensor.

Pour affiner la sensibilité du capteur tactile, sur détection d'un contact de la main de l'utilisateur sur le capteur tactile pendant l'une desdites secondes périodes, le circuit électronique active le capteur tactile pendant un nombre prédéterminé de secondes périodes successives. De cette façon, la détection correspond à plusieurs détections successives dudit contact sur ledit capteur, ce qui permet d'assurer qu'il s'agit d'un appui volontaire de l'utilisateur sur le capteur tactile, et non pas du passage furtif de son doigt sur ce capteur.To refine the sensitivity of the touch sensor, on detection of a touch of the hand of the user on the touch sensor during one of said second periods, the electronic circuit activates the touch sensor for a predetermined number of second successive periods. In this way, the detection corresponds to several successive detections of said contact on said sensor, which makes it possible to ensure that it is a voluntary support of the user on the touch sensor, and not the stealth passage of his finger on this sensor.

Comme on le voit, la poignée selon l'invention permet de mettre en oeuvre deux capteurs capacitifs pour améliorer l'ergonomie des systèmes d'accès mains libres.As can be seen, the handle according to the invention makes it possible to use two capacitive sensors to improve the ergonomics of the hands-free access systems.

Claims (4)

  1. Motor vehicle door handle, comprising a tactile sensor (CT) intended to operate with a vehicle hands free access system, the tactile sensor (CT) being used for locking the motor vehicle doors by the hands free access system, the handle moreover comprising an approach sensor (CA) also intended to operate with said hands free access system, the approach sensor being used for unlocking the motor vehicle doors by the hands free system, the approach sensor (CA) and the tactile sensor (CT) being capacitive sensors, said sensors operating with the hands free access system through an electronic circuit characterized in that the electronic circuit (CE) activates each of said sensors one after the other, so that said sensors (CA, CT) do not disturb each other, said electronic circuit (CE) being organised to alternate first time periods (P1) during which it activates the approach sensor (CA) and deactivates the tactile sensor (CT), with second periods (P2) during which the approach sensor (CA) is deactivated, and to activate the tactile sensor (CT) during some of said second periods (P2).
  2. Door handle according to claim 1 in which said electronic circuit (CE) and said sensors (CA, CT) are integrated in a case (BO) installed in the handle (PO).
  3. Door handle according to claim 1 or 2, in which the electronic circuit (CE) is organised to activate the tactile sensor (CT) in at least one in every five second periods (P2).
  4. Door handle according to any of the preceding claims, in which upon detection of a contact applied to the tactile sensor (CT) during one of said second periods (P2), the electronic circuit (CE) activates the tactile sensor (CT) during a predetermined number of successive second periods (P2) so that the detection corresponds to several successive detections of a contact applied to said tactile sensor.
EP01128120.1A 2000-12-01 2001-11-27 Vehicle door handle comprising a proximity sensor and a tactile sensor cooperating with a hand-free access system Expired - Lifetime EP1211649B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015620 2000-12-01
FR0015620A FR2817581B1 (en) 2000-12-01 2000-12-01 VEHICLE OPENING HANDLE COMPRISING AN APPROACH SENSOR AND A TOUCH SENSOR COOPERATING WITH A HANDS-FREE ACCESS SYSTEM

Publications (3)

Publication Number Publication Date
EP1211649A1 EP1211649A1 (en) 2002-06-05
EP1211649B1 EP1211649B1 (en) 2008-07-23
EP1211649B2 true EP1211649B2 (en) 2017-03-01

Family

ID=8857159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128120.1A Expired - Lifetime EP1211649B2 (en) 2000-12-01 2001-11-27 Vehicle door handle comprising a proximity sensor and a tactile sensor cooperating with a hand-free access system

Country Status (4)

Country Link
EP (1) EP1211649B2 (en)
DE (1) DE60134942D1 (en)
ES (1) ES2310535T5 (en)
FR (1) FR2817581B1 (en)

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JP3770218B2 (en) * 2002-08-29 2006-04-26 アイシン精機株式会社 Human body detection device for vehicle door opening and method of using the same
FR2853346B1 (en) * 2003-04-01 2005-06-24 Peugeot Citroen Automobiles Sa METHOD FOR LIMITING A REBOUND EFFECT OF A DEVICE FOR LOCKING AND UNLOCKING A LOCK IN A DOOR OF A MOTOR VEHICLE
JP3639292B1 (en) * 2003-10-30 2005-04-20 株式会社アルファ Door opener
DE102004026442A1 (en) * 2004-05-29 2005-12-22 Huf Hülsbeck & Fürst Gmbh & Co. Kg Device for actuating an electrical or mechanical closing device on a door and / or a flap of a vehicle
FR2901392B1 (en) 2006-05-18 2008-09-05 Siemens Vdo Automotive Sas DEVICE FOR DETECTING AN EVENT IN A VEHICLE OR IN THE VEHICLE ENVIRONMENT
FR2940772A1 (en) * 2009-01-05 2010-07-09 Peugeot Citroen Automobiles Sa Petrol tank flap for motor vehicle i.e. car, has actuator activating cover from closed position to open position in response to cover opening command provided by hands free access system
DE102009034033A1 (en) * 2009-07-21 2011-01-27 Huf Hülsbeck & Fürst Gmbh & Co. Kg Door opening and/or closing device control method for vehicle, involves transferring controller into switched on active condition after receiving signal, and transferring handle into operative position during correlation
FR3044146A1 (en) * 2015-11-25 2017-05-26 Continental Automotive France METHOD FOR DETECTING INTENTION OF LOCKING OR UNLOCKING A VEHICLE'S VEHICLE DOOR BY A USER AND ASSOCIATED DEVICE
WO2018150106A1 (en) 2017-02-17 2018-08-23 Continental Automotive France Method for detecting a user's intention to lock or unlock a motor vehicle door and associated device

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US5526294A (en) † 1989-04-28 1996-06-11 Matsushita Electric Industrial Co., Ltd. Capacitive touch entry apparatus using drive pulse signals of different phases
EP0802500A2 (en) † 1996-04-15 1997-10-22 Pressenk Instruments Inc. Padless touch sensor
WO1997041322A1 (en) † 1996-04-27 1997-11-06 Huf Hülsbeck & Fürst Gmbh. & Co. Kg. Locking system, particularly for motor vehicles
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WO2002033203A1 (en) † 2000-10-14 2002-04-25 Robert Bosch Gmbh Device for initiating an opening and closing process in a motor vehicle

Also Published As

Publication number Publication date
ES2310535T3 (en) 2009-01-16
FR2817581A1 (en) 2002-06-07
EP1211649A1 (en) 2002-06-05
ES2310535T5 (en) 2017-07-27
EP1211649B1 (en) 2008-07-23
DE60134942D1 (en) 2008-09-04
FR2817581B1 (en) 2006-08-25

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