EP1584777B1 - Système de fermeture pour un véhicule et son procédé de fonctionnement - Google Patents

Système de fermeture pour un véhicule et son procédé de fonctionnement Download PDF

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Publication number
EP1584777B1
EP1584777B1 EP05006470A EP05006470A EP1584777B1 EP 1584777 B1 EP1584777 B1 EP 1584777B1 EP 05006470 A EP05006470 A EP 05006470A EP 05006470 A EP05006470 A EP 05006470A EP 1584777 B1 EP1584777 B1 EP 1584777B1
Authority
EP
European Patent Office
Prior art keywords
sensor
vehicle
closure system
control
user
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.)
Not-in-force
Application number
EP05006470A
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German (de)
English (en)
Other versions
EP1584777A1 (fr
Inventor
Rainer Pollmann
Manfred Rohlfing
Peter Bandl
Martin Witte
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.)
Bayerische Motoren Werke AG
Huf Huelsbeck and Fuerst GmbH and Co KG
Original Assignee
Bayerische Motoren Werke AG
Huf Huelsbeck and Fuerst GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG, Huf Huelsbeck and Fuerst GmbH and Co KG filed Critical Bayerische Motoren Werke AG
Publication of EP1584777A1 publication Critical patent/EP1584777A1/fr
Application granted granted Critical
Publication of EP1584777B1 publication Critical patent/EP1584777B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/34—Protection against weather or dirt, e.g. against water ingress
    • 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

Definitions

  • the invention relates to a locking system for a vehicle having at least one vehicle access, wherein the locking system comprises an outer handle with at least one capacitive sensor, via which by means of a control unit and a vehicle-side transmitting / receiving unit in operative connection with a user-side data carrier in an activation of the on Outside handle arranged first button of the sensor, a locking / unlocking function of the vehicle by means of a locking device can be introduced.
  • the invention further relates to a method for operating a locking system for a vehicle, in which a locking / unlocking of one or more vehicle accesses by activating a first button of a arranged on an outer handle capacitive sensor, in operative connection with a control unit and with a user-side data carrier communicating on-board transmitting / receiving unit is initiated.
  • Modern vehicles, especially motor vehicles, are increasingly equipped with keyless locking systems to increase the ease of use.
  • Such locking systems are for example from the DE 196 17 038 C2 and the DE 102 04 025 A1 known.
  • Passive Entry door locking systems the operation of the usual radio remote control on the vehicle key for unlocking, or locking the vehicle via a locking device, in particular a central locking eliminates. Instead, when approaching or touching the outside door handle of the vehicle door, a sensor is activated which triggers actuation of the central lock if the operator is authorized to do so.
  • the authorized operator carries with him a data carrier, which in approaching the vehicle in a bidirectional Communication with a vehicle-side transmitting / receiving unit occurs in the case of which his access authorization is checked by an exchange of numerical codes.
  • sensors usually capacitive sensors are used, which are at least partially integrated into the door handle. These sensors are designed as capacitors that are sensed when approached or touched by the operator, ie activated. As the operator's hand approaches, the capacitance between the electrodes of the capacitor changes by virtue of the operator forming a capacitive connection with the one electrode or the human hand acting as a dielectric between the electrodes. If the capacity exceeds a certain value, the sensor will respond.
  • the unlocking bel can be initiated before or simultaneously done a positive identification of the operator.
  • this or another separate capacitive sensor can be used. The operator activates the sensor by touching, resp. Passing a button of the sensor, again checking the authorization for an action via the data medium.
  • a problem with the known keyless locking systems has been found that their reliability can be affected by environmental influences.
  • an inadvertent locking of the vehicle may be triggered if the operator with a valid data carrier is in the immediate vicinity of the outside door handle and then the button of the locking sensor of this door outside handle is subjected to water or snow.
  • the capacitance of the sensor can thereby exceed a value that causes a malfunction due to environmental influences, since the capacitive sensor can not distinguish whether it is triggered by a human hand or by environmental influences.
  • people in the car can be locked inadvertently and unnoticed.
  • a disadvantage of the known system has the effect that very different changes or change rates of the capacitances (capacity gradients) of the sensor can occur both during operation by the human hand as well as by rain or snow. So on the one hand, the operator can approach or remove very slowly, or operate the sensor very slowly, which would then lead to the door not being unlocked or locked as desired. On the other hand, rapid changes in capacity can also be generated by precipitation. Reliable protection against malfunctions is thus rather not achieved. In addition, a relatively complicated electronic circuit is necessary to detect and evaluate the speed changes of the capacity.
  • Object of the present invention is therefore to improve the known keyless locking systems for vehicles so that malfunction can be avoided with reduced effort and their reliability is increased.
  • the sensor has at least one second button, which is accessible to environmental influences and is not accessible or difficult to access for an operator, so that upon normal operation of the locking device, an act on this button can not be caused by the operator, but by environmental influences, by means of the second button an exposure of the sensor by environmental influences from the activation of the sensor by the operator via detection of button-selective signal changes to the sensor is distinguishable, because the control unit an environmental activation detects the sensor due to an act of both buttons.
  • the capacitive sensor for locking, or unlocking not only consists of one, but at least two, spatially separated buttons. These buttons act as a two-part response electrode of the capacitive sensor, upon contact or approximation of which the capacitance of the capacitor formed by the sensor changes.
  • the buttons are connected to the control unit via a vehicle logic. Capacitance changes at the buttons can be selectively detected by the control unit and can be evaluated by means of the vehicle logic, which is constructed, for example, as an electronic circuit arrangement with logic operations.
  • the control unit can easily distinguish an activation of the locking device of the vehicle by an authorized operator from a malfunction by the environmental influence of the capacitive sensor.
  • the locking function is both the locking / unlocking of individual vehicle access via individual vehicle locks as well as all vehicle access via a central locking system Understood.
  • Vehicle access is not only vehicle doors, but also other accesses, such as trunk lids, hoods or vehicle tops. Under environmental influences are not only natural rainfall in the form of rain, snowfall or ice, but also artificially induced external influences, for example by a car wash understood.
  • the second button is not or hardly accessible to the operator, i. activatable, so that a normal operation of the locking device, an action on this button can not be caused by the operator, but by environmental influences.
  • the sensor does not switch when both buttons are exposed to environmental influences, for example, by a capacitive humidification in case of rain, and at the same time the authorized operator, or the disk of the operator, located in the vicinity of the sensor.
  • the two buttons with comparable capacity changes
  • an environmental influence is recognized since the second button can not be actuated by the operator, and the environmental influences usually apply both buttons as long as the operator does not cover the first button. This increases the operational safety of the locking system. Unintentional actions of the locking device are avoided.
  • the sensor with the two buttons is particularly useful as a locked sensor for locking one or more vehicle doors, as it reliably prevents inadvertent entrapment of persons in the vehicle due to a malfunction of the locking system due to environmental influences on the capacitive sensor.
  • the Schliefisystem is particularly compact and inexpensive in construction and easy and safe to use, if the first button of the sensor in an easily accessible position on a handle front of the outside door handle (as in the previous capacitive sensors with a button) is located, and the second button is arranged at an inaccessible to the operator's hand point of the outside door handle. This is particularly easy to implement with a separate latched sensor. To lock the vehicle, the operator then simply strokes the handle front. Since the operator can not touch the second button, an accidental blocking of a desired locking is excluded.
  • the locking system can be used in operative connection with an identification transmitter, in short ID transmitter, preferably a transponder), with which a data query for identifying the operator can be performed.
  • control unit transmits an ooues signal to a clearly recognized admission of both buttons by environmental influences to the transmitting / receiving unit, whereupon the identification procedure is suppressed.
  • the reliability of the system can be further improved.
  • Another object of the present invention is therefore to improve the known method for operating a locking device for a vehicle so that they ensure increased reliability.
  • the vehicle is locked or secured if only the (well) accessible area of the sensor is touched and at the same time there is a valid data carrier, preferably an ID transmitter, in the immediate vicinity. If, on the other hand, both surfaces of the sensor are exposed to water, for example, the vehicle logic recognizes that it is not a human hand and no action (locking) is carried out. Of course, the vehicle is also locked when significantly different capacities occur at the two buttons due to activation of the first button by the operator and exposure of the second button to environmental influences. This ensures that the function of the locking system is ensured even when the sensor is exposed to environmental influences, for example when it rains.
  • FIG. 1 shows a block diagram of a locking system of a vehicle.
  • a locking system for a vehicle consists essentially of a capacitive sensor 1 and a locking device 9, which is controllable via a control unit 5.
  • the sensor 1 is formed with two buttons 2, 3 as An Maschinenelelttroden. With a reference electrode, not shown, formed for example as a ground potential, the sensor 1 forms a capacitor with the buttons 2, 3, respectively.
  • the first button 2 is arranged in a front side of an outside door handle 4 of a vehicle door (not shown).
  • the second button 3 is located in an inaccessible position of the outside door handle 4, which in the FIG. 1 is indicated.
  • the two shutter surfaces 2, 3 are connected to the control unit 5, which is advantageously arranged at a central location in the vehicle.
  • the control unit 5 is in turn connected to the locking device 9 and to a transmitting / receiving unit 7.
  • the transmitting / receiving unit 7 is arranged in the region of the vehicle door, advantageously in the outside door handle 4.
  • a vehicle door lock 10 is provided for locking / unlocking the vehicle door, which can be actuated via the locking device 9, advantageously designed as a central locking.
  • a data carrier 8 is present, which can be carried by an operator.
  • the data carrier 8 is advantageously designed as an ID transmitter, for example in credit card format, in the transponder technology known per se.
  • the ID transmitter 8 and the transmitting / receiving unit 7 are designed for bidirectional communication.
  • the control unit 5 is also assigned a vehicle logic 6 with which the signals emanating from the sensor 1 or the buttons 2, 3 can be evaluated.
  • the two buttons 2, 3 of the sensor 1 form a safety system for the closing device in operative connection with the control unit 5 and the ID transmitter 8.
  • a method for operating a locking system for a vehicle is essentially based on the fact that an actuation of a capacitive sensor 1 with two buttons 2 and 3 is selected to be switch-surface-selective,
  • the method of operation of the method will be explained using the example of a safety function against accidental locking of the vehicle on the device described above.
  • a scenario is assumed in which an operator after leaving the vehicle is in the immediate vicinity of the outside door handle 4 of a vehicle door while other occupants are (still) in the vehicle.
  • the vehicle may be exposed to environmental influences in the form of rain.
  • the outside door handle 4 in particular the two buttons 2 and 3, be charged with water.
  • the operator carries the ID transmitter 8 with him via the transmitting / receiving unit 7 is a permission request to the ID transmitter (transponder) 8 wirelessly directed to lock the vehicle, in particular by the fact that the transponder 8 in an induction field of the send - / receiving unit 7 moves.
  • the transponder 8 then sends out a signal, and a bidirectional dialogue takes place in which the control unit 5 uses a coding of the signals exchanged to authorize the system Operator to an action (interlock) checked.
  • an action ie if an authorization has been established, according to the prior art, due to the actuation of the button of the capacitive sensor and its associated capacitance change, this would be interpreted as a lock request, whereupon the vehicle would be inadvertently locked and the persons still in the vehicle would be locked up. According to the invention, this is now prevented by the control unit 5 selectively detecting the application of both buttons 2, 3 and the capacitance change caused thereby.
  • the vehicle logic 6 registers a sensor signal of the second button 3, which is inaccessible to the operator, and recognizes that it is not a human hand. Thus, no unwanted action (lock) is executed.
  • the vehicle logic based on different sensor signals (capacitance changes) to the buttons even if at an admission of the second button 3 in the rain, the same time the operator by sweeping the first button 2 a locking request expressed. whereupon the control unit 5 performs the locking of the vehicle via the locking device 9 as desired.

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  • Lock And Its Accessories (AREA)

Claims (9)

  1. Système de fermeture pour un véhicule doté d'au moins un accès de véhicule, sachant que le système de fermeture comprend une poignée extérieure (4) dotée d'au moins un capteur capacitif (1) qui permet, à l'aide d'une unité de commande (5) et d'une unité émettrice/réceptrice (7) côté véhicule en liaison fonctionnelle avec un support de données (8) côté utilisateur, de déclencher une fonction de verrouillage/déverrouillage du véhicule au moyen d'un dispositif de verrouillage (9) lors d'une activation d'une première surface de commande (2) du capteur qui est disposée sur la poignée extérieure (4), caractérisé en ce que le capteur (1) présente au moins une deuxième surface de commande (3) qui est disposée de façon à être accessible aux influences de l'environnement, mais qui n'est pas ou seulement difficilement accessible pour un utilisateur, de sorte que, lors d'une manoeuvre normale du système de fermeture, une sollicitation de cette surface de commande peut être provoquée non pas par l'utilisateur, mais bien par des influences de l'environnement, sachant que la deuxième surface de commande permet de distinguer une sollicitation du capteur (1) par des influences de l'environnement, de l'activation du capteur (1) par l'utilisateur en relevant au niveau du capteur (1) des modifications de signal spécifiques de la surface de commande, attendu que l'unité de commande (5) identifie une activation du capteur (1) due à l'environnement en raison d'une sollicitation des deux surfaces de commande (2, 3).
  2. Système de fermeture selon la revendication 1, caractérisé en ce qu'au moins un capteur (1) est conçu comme capteur d'état verrouillé séparé pour verrouiller un ou plusieurs accès du véhicule.
  3. Système de fermeture selon la revendication 1 ou 2, caractérisé en ce que les surfaces de commande (2, 3) sont conçues comme éléments d'électrodes du capteur (1).
  4. Système de fermeture selon l'une des revendications 1 à 3, caractérisé en ce que les surfaces de commande (2, 3) du capteur (1) sont reliées à l'unité de commande (5) par l'intermédiaire d'un système logique (6) du véhicule.
  5. Système de fermeture selon l'une des revendications 1 à 4, caractérisé en ce que le capteur (1) est disposé sur une poignée extérieure (4) d'une porte du véhicule.
  6. Système de fermeture selon l'une des revendications 1 à 5, caractérisé en ce que la première surface de commande (2) du capteur (1) est disposée sur un côté avant de la poignée extérieure de porte (4), et en ce que la deuxième surface de commande (3) est disposée en un endroit de la poignée extérieure de porte (4) auquel la main de l'utilisateur ne peut pas accéder.
  7. Système de fermeture selon l'une des revendications 1 à 6, caractérisé en ce que le support de données (8) est conçu comme transmetteur d'identification.
  8. Système de fermeture selon la revendication 7, caractérisé en ce que le support de données (8) conçu comme transmetteur d'identification est un transpondeur.
  9. Procédé pour faire fonctionner un système de fermeture pour un véhicule, selon lequel un verrouillage/déverrouillage d'un ou plusieurs accès du véhicule est déclenché en activant une première surface de commande (2) d'un capteur capacitif (1) disposé sur une poignée extérieure, en liaison fonctionnelle avec une unité de commande (5) et une unité émettrice/réceptrice (7) côté véhicule communiquant avec un support de données (8) côté utilisateur, caractérisé en ce que l'unité de commande (5) surveille au moyen d'un système logique (6) du véhicule une sollicitation de la première surface de commande (2) du capteur (1) et d'au moins une autre surface de commande (3) qui est disposée de façon à être accessible aux influences de l'environnement, mais qui n'est pas ou seulement difficilement accessible pour la main d'un utilisateur, de sorte que, lors d'une manoeuvre normale du système de fermeture, une sollicitation de cette surface de commande peut être provoquée non pas par l'utilisateur, mais bien par des influences de l'environnement, et en ce que le véhicule est verrouillé/déverrouillé si un souhait de verrouillage/déverrouillage est identifié par une activation de la première surface de commande (2) par la main de l'utilisateur et si une autorisation est établie au du support de données (8), et en ce que le véhicule n'est pas verrouillé/déverrouillé si l'unité de commande (5) identifie une activation du capteur (1) due à l'environnement en raison d'une sollicitation des deux surfaces de commande (2, 3).
EP05006470A 2004-04-05 2005-03-24 Système de fermeture pour un véhicule et son procédé de fonctionnement Not-in-force EP1584777B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004017243 2004-04-05
DE102004017243A DE102004017243A1 (de) 2004-04-05 2004-04-05 Schließsystem für ein Fahrzeug und Verfahren zu dessen Betrieb

Publications (2)

Publication Number Publication Date
EP1584777A1 EP1584777A1 (fr) 2005-10-12
EP1584777B1 true EP1584777B1 (fr) 2008-10-15

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EP05006470A Not-in-force EP1584777B1 (fr) 2004-04-05 2005-03-24 Système de fermeture pour un véhicule et son procédé de fonctionnement

Country Status (4)

Country Link
US (1) US20050219043A1 (fr)
EP (1) EP1584777B1 (fr)
AT (1) ATE411438T1 (fr)
DE (2) DE102004017243A1 (fr)

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CN102278010A (zh) * 2011-06-16 2011-12-14 广西大学 防盗门的防盗开方法以及防盗保护装置
CN106088834A (zh) * 2016-06-06 2016-11-09 广西大学 一种能够自动反锁的防盗锁
KR101802363B1 (ko) 2010-09-06 2017-11-28 콘티넨탈 오토모티브 프랑스 자동차 도어 핸들 접촉 검출 센서 상의 거짓 접촉들을 판정하기 위한 방법

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JP4600323B2 (ja) * 2006-03-15 2010-12-15 アイシン精機株式会社 車両用のドアハンドル
JP4947348B2 (ja) 2006-09-13 2012-06-06 アイシン精機株式会社 車両用ドアハンドル装置
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KR101308903B1 (ko) * 2009-08-31 2013-10-14 스미다 코포레이션 가부시키가이샤 물체의 접근을 검출하기 위한 정전용량식 검출장치, 센서유닛, 제어시스템 및 그 방법
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FR2983663B1 (fr) * 2011-12-02 2014-07-04 Valeo Securite Habitacle Capteur de declenchement d'une action sur un ouvrant de vehicule automobile
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WO2016009091A1 (fr) * 2014-07-18 2016-01-21 Huf Hülsbeck & Fürst Gmbh & Co. Kg Système de poignée intérieure de portière de véhicule
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Publication number Priority date Publication date Assignee Title
KR101802363B1 (ko) 2010-09-06 2017-11-28 콘티넨탈 오토모티브 프랑스 자동차 도어 핸들 접촉 검출 센서 상의 거짓 접촉들을 판정하기 위한 방법
CN102278010A (zh) * 2011-06-16 2011-12-14 广西大学 防盗门的防盗开方法以及防盗保护装置
CN106088834A (zh) * 2016-06-06 2016-11-09 广西大学 一种能够自动反锁的防盗锁

Also Published As

Publication number Publication date
DE502005005663D1 (de) 2008-11-27
US20050219043A1 (en) 2005-10-06
DE102004017243A1 (de) 2005-11-10
EP1584777A1 (fr) 2005-10-12
ATE411438T1 (de) 2008-10-15

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