EP0895559B1 - Locking system for motor vehicles - Google Patents

Locking system for motor vehicles Download PDF

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Publication number
EP0895559B1
EP0895559B1 EP97918137A EP97918137A EP0895559B1 EP 0895559 B1 EP0895559 B1 EP 0895559B1 EP 97918137 A EP97918137 A EP 97918137A EP 97918137 A EP97918137 A EP 97918137A EP 0895559 B1 EP0895559 B1 EP 0895559B1
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EP
European Patent Office
Prior art keywords
locking system
grip
electrode
data
control unit
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
EP97918137A
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German (de)
French (fr)
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EP0895559A1 (en
Inventor
Andreas Van Den Boom
Stefan Lange
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.)
Huf Huelsbeck and Fuerst GmbH and Co KG
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Huf Huelsbeck and Fuerst GmbH and Co KG
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Publication of EP0895559A1 publication Critical patent/EP0895559A1/en
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Publication of EP0895559B1 publication Critical patent/EP0895559B1/en
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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
    • 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
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/10—Handles
    • E05B85/14—Handles pivoted about an axis parallel to the wing
    • E05B85/16—Handles pivoted about an axis parallel to the wing a longitudinal grip part being pivoted at one end about an axis perpendicular to the longitudinal axis of the grip part
    • 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
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • 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
    • G07C2209/65—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle using means for sensing the user's hand

Definitions

  • the invention relates to a locking system in the preamble of the claim 1 type. With such a locking system, access authorization is required checked by means of an electromagnetic data query.
  • the field of application of Invention is particularly directed to motor vehicles, entrances Security zones etc.
  • a person e.g. a vehicle via a data query from a data carrier, e.g. one Check card, to enable.
  • the data query is carried out by an am Vehicle-mounted mechanical switch or sensor, e.g. one Light barrier, triggered, which on a door handle or at least in the area of a Door handle are installed.
  • the person requesting access solves the data query of the Data carrier by a control unit, e.g. in a vehicle, by actuation the switch, more precisely by moving the door handle, or by means of the Driving through a light barrier with one hand.
  • the triggered pulse is in this case passed on by the control unit to a transmitter which requests the data transmitted to the data carrier.
  • the disk receives the command to Data query and passes this on to a data unit that contains the required data forwards to a transmitter.
  • the transmitter then transmits the data again via the Vehicle-side transmitter / receiver unit to the control unit in the vehicle, which in the In the event of positive data detection, a command to unlock the Locking system issues.
  • the data query therefore only occurs when a handle is pressed for the first time a handle or a flap of a door handle and thus to one relatively late because, as from the description above is followed by a few more steps.
  • This delayed data query as well the subsequent response time of a central locking system make one System uncomfortable. In some cases, this has the consequence that the locking system is not yet unlocked when the door handle is operated for the first time and which gives access Desiring person must press the door handle again to open a door to open.
  • DE 44 35 894 A1 describes a security system for securing a Motor vehicle known, in which the data query of a transponder inductively triggered an induction coil arranged on the vehicle near a door handle becomes. The person requesting access thereby solves the data query of the transponder that she approaches the vehicle with the induction coil, and the transponder is addressed by it. The transponder then sends the data stored in it Data, the identification code to a control unit that gives access authorization checked. The control unit then gives the data in the event of positive data recognition Command to unlock the locking system.
  • the data carrier consists of a luminescent diode attached to a portable transmitter.
  • a receiver with a Control electronics is coupled to an incoming signal from the portable transmitter evaluates.
  • the user To unlock the locking system, the user must use the portable transmitter with the LED on the locking device side Aim the receiver and press the transmitter.
  • the broadcast by the broadcaster Light signal which has a characteristic wavelength, is then from Receivers received and transmitted to the control unit, which checks whether a Coincidence of the emitted by the transmitter with the set light frequency is present. If this is the case, the control unit unlocks the locking device.
  • a locking system which consists of an infrared transmitter as well as several on the vehicle side in the area of the vehicle outer skin attached infrared receivers that control the locking system.
  • the user To unlock the locking system, the user must, as already in aforementioned case, the portable transmitter with the IR diode on the Set the receiver on the locking system side and actuate the transmitter. That from the broadcaster emitted IR light, which has a characteristic wavelength then analyzed by the receiver and checked whether there is a coincidence of the transmitter emitted with the set light frequency. If so, then the control unit unlocks the locking device.
  • the object of the invention is a system in the preamble of claim 1 to develop a way that a user in a comfortable and safe manner Allows access to a motor vehicle.
  • This is according to the invention by the characterizing part of claim 1 measures achieved, those has the following special meaning.
  • the door handles at least one electrode is installed and in which the Handle has a counter electrode attached to the opposite part of the door, which can also be the door itself. Will be between two electrodes electric field built up, this can be used to advantage are already granting access to a person reaching for a door handle sensing.
  • the hand has the special function that it is the dielectric between the handle-side electrode and the door-side counter electrode changed by part of the ambient air through the dielectric of your hand is replaced and thus a total total dielectric results.
  • the entire process from sensing the approach of the Hand up to the receipt of the data transmitted from the data carrier and the subsequent unlocking of the locking system in the event of detection of a Access authorization, certainly before the actual activation of the Handle completed.
  • the task is to provide the system with data to compensate for differences in capacity due to changing external conditions, e.g. by changing Weather conditions.
  • the invention is a Locking system consisting of several components 13 - 37, and this in the here illustrated embodiment is integrated in a vehicle 10.
  • This Locking system should be possible for the authorized user of vehicle 10 Allow access to vehicle 10 in a comfortable and simple manner.
  • Fig. 1 can be seen that in this embodiment, two doors 12 each Door handle 13 and a lock 14 are attached.
  • From the door handles 13 conductors 18 run from the capacitive Sensor 30-34 to an electrical control unit 16.
  • data carrier 20 there is the command for data output via an antenna 24 caught and forwarded to a receiver 22 of the data carrier 20.
  • the Receiver 22 forwards the signal to the data unit 23 of the data carrier 20 the data retrieved via a transmitter 21 and the antenna 24 of the data carrier 20 transmitted to the transmitting / receiving units 15 in the vehicle 10.
  • disk 20 are in addition to the units mentioned above in this embodiment also a power supply 26 and electronics 25, the functions of the Data carrier 20 controls.
  • the transmitting / receiving units 15 pass the received data on the Conductor tracks 19 to the electrical control unit 16.
  • the data supplied by the data carrier 20 with the in the electrical control unit 16 compared stored identification data.
  • the positive Data detection case recognition of access authorization
  • a first electrode 30 of the capacitive sensor 30 - 34 in this embodiment divided into two and arranged symmetrically in an inner shell 28 of a handle 27.
  • Midway between the two parts of the The compensation electrode 33 is arranged in the electrode 30.
  • Lock cylinder 37 facing part of the handle 27 is the electronics 34 of the capacitive sensor 30-34 in this exemplary embodiment on the inner shell 28 appropriate.
  • the electrodes 30, 33 and the electronics 34 are air-tight with an insulating layer 36 coated.
  • the door 12 can also be locked using the lock cylinder 37 can be opened with a key provided for such cases.
  • the embodiment shown here is only one exemplifies implementation of the invention. However, this is not on it limited. It could e.g. the push button switch by a second, additionally in the Outer shell of the handle 27 attached sensor to be replaced, the desire a person after securing the vehicle by swiping their hand in front the side of the handle 27 facing away from the vehicle 10.
  • the electrodes are also not limited to any particular form, but rather can be any Have shape that is possible for the respective electrode.
  • the number of sensors is also not limited to a certain number.

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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

Die Erfindung richtet sich auf ein Schließsystem der im Oberbegriff des Anspruches 1 genannten Art. Bei einem solchen Schließsystem wird eine Zutrittsberechtigung mittels einer elektromagnetischen Datenabfrage geprüft. Das Anwendungsgebiet der Erfindung richtet sich insbesondere auf Kraftfahrzeuge, Zugänge zu Sicherheitszonen etc..The invention relates to a locking system in the preamble of the claim 1 type. With such a locking system, access authorization is required checked by means of an electromagnetic data query. The field of application of Invention is particularly directed to motor vehicles, entrances Security zones etc.

Bei Schließsystemen der oben genannten Art ist es bekannt, einer Person Zutritt zu z.B. einem Fahrzeug über eine Datenabfrage eines Datenträgers, z.B. einer Scheckkarte, zu ermöglichen. Die Datenabfrage wird hierbei durch einen am Fahrzeug angebrachten mechanischen Schalter oder einen Sensor, z.B. einer Lichtschranke, ausgelöst, welche an einem Türgriff oder zumindest im Bereich eines Türgriffs installiert sind. Die Zutritt begehrende Person löst die Datenabfrage des Datenträgers durch eine Steuereinheit, z.B. in einem Fahrzeug, durch ein Betätigen des Schalters, genauer gesagt durch ein Bewegen des Türgriffs, oder mittels des Durchfahrens einer Lichtschranke mit einer Hand aus. Der ausgelöste Impuls wird hierbei von der Steuereinheit an einen Sender weitergegeben, der die Datenabfrage an den Datenträger übermittelt. Der Datenträger empfängt den Befehl zur Datenabfrage und gibt diesen weiter an eine Dateneinheit, die die geforderten Daten an einen Sender weiterleitet. Der Sender übermittelt die Daten dann wieder über die fahrzeugseitige Sende/Empfangseinheit an die Steuereinheit im Fahrzeug, die im Falle einer positiven Datenerkennung einen Befehl zur Entsicherung des Schließsystems ausgibt.With locking systems of the type mentioned above, it is known to give access to a person e.g. a vehicle via a data query from a data carrier, e.g. one Check card, to enable. The data query is carried out by an am Vehicle-mounted mechanical switch or sensor, e.g. one Light barrier, triggered, which on a door handle or at least in the area of a Door handle are installed. The person requesting access solves the data query of the Data carrier by a control unit, e.g. in a vehicle, by actuation the switch, more precisely by moving the door handle, or by means of the Driving through a light barrier with one hand. The triggered pulse is in this case passed on by the control unit to a transmitter which requests the data transmitted to the data carrier. The disk receives the command to Data query and passes this on to a data unit that contains the required data forwards to a transmitter. The transmitter then transmits the data again via the Vehicle-side transmitter / receiver unit to the control unit in the vehicle, which in the In the event of positive data detection, a command to unlock the Locking system issues.

Die Datenabfrage geschieht also erst bei einem ersten Betätigen einer Handhabe wie einem Griffbügel oder einer Griffklappe eines Türgriffs und somit zu einem verhältnismäßig späten Zeitpunkt, da ihr, wie aus der obigen Beschreibung zu entnehmen ist, noch einige Schritte nachfolgen. Diese verzögerte Datenabfrage sowie die sich anschließende Reaktionsszeit einer Zentralverriegelung machen ein solches System unkomfortabel. In manchen Fällen hat dies zur Folge, daß das Schließsystem bei der ersten Betätigung des Türgriffs noch nicht entsichert ist und die den Zutritt begehrende Person erneut den Türgriff erneut betätigen muß, um eine Türe zu öffnen.The data query therefore only occurs when a handle is pressed for the first time a handle or a flap of a door handle and thus to one relatively late because, as from the description above is followed by a few more steps. This delayed data query as well the subsequent response time of a central locking system make one System uncomfortable. In some cases, this has the consequence that the locking system is not yet unlocked when the door handle is operated for the first time and which gives access Desiring person must press the door handle again to open a door to open.

Aus der DE 44 35 894 A1 ist ein Sicherungssystem zur Sicherung eines Kraftfahrzeugs bekannt, bei dem die Datenabfrage eines Transponders induktiv durch eine am Fahrzeug, in der Nähe eines Türgriffs angeordnete Induktionsspule ausgelöst wird. Die Zutritt begehrende Person löst die Datenabfrage des Transponders dadurch aus, daß sie sich dem Fahrzeug mit der Induktionsspule nähert, und der Transponder dadurch angesprochen wird. Der Transponder sendet sodann die in ihm gespeicherten Daten, den Identifikationscode an eine Steuereinheit, die die Zugangsberechtigung überprüft. Die Steuereinheit gibt dann im Falle einer positiven Datenerkennung den Befehl zur Entsicherung des Schließsystems.DE 44 35 894 A1 describes a security system for securing a Motor vehicle known, in which the data query of a transponder inductively triggered an induction coil arranged on the vehicle near a door handle becomes. The person requesting access thereby solves the data query of the transponder that she approaches the vehicle with the induction coil, and the transponder is addressed by it. The transponder then sends the data stored in it Data, the identification code to a control unit that gives access authorization checked. The control unit then gives the data in the event of positive data recognition Command to unlock the locking system.

Bei der vorgenannten Vorrichtung ist es von Nachteil, daß ein unbeabsichtigtes Entsichern des Schließsytems erfolgen kann, wenn sich der Benutzer unbeabsichtigt und zufällig nach dem Schließvorgang nochmals seinem Fahrzeug nähert, welches über die beschriebene Sicherheitseinrichtung gesichert ist.In the above device, it is disadvantageous that an unintended Unlocking the locking system can be done if the user unintentionally and accidentally approaches his vehicle again after the closing process is secured via the described safety device.

Aus der DE AS 15 66 733 ist eine Anordnung zum Entriegeln und zur Überwachung eines Schließsystems bekannt. Bei dieser Anordnung besteht der Datenträger aus einer Lumineszensdiode, die an einem portablen Sender angebracht ist. An der türseitigen Schließeinrichtung befindet sich ein Empfänger, der mit einer Steuerelektronik gekoppelt ist, der ein eingehendes Signal vom portablen Sender auswertet. Zur Entsicherung des Schließsystems muß der Benutzer hierbei den portablen Sender mit der Lumineszenzdiode auf den schließeinrichtungsseitigen Empfänger richten und den Sender betätigen. Das vom Sender ausgesandte Lichtsignal, welches eine charakteristische Wellenlänge aufweist, wird sodann vom Empfänger empfangen und an die Steuereinheit übermittelt, die überprüft, ob eine Koinzidenz der vom Sender ausgesandten mit der eingestellten Lichtfrequenz vorliegt. Ist dies der Fall, dann entsichert die Steuereinheit die Schließeinrichtung. From DE AS 15 66 733 is an arrangement for unlocking and monitoring a locking system known. With this arrangement, the data carrier consists of a luminescent diode attached to a portable transmitter. At the door-side locking device is a receiver with a Control electronics is coupled to an incoming signal from the portable transmitter evaluates. To unlock the locking system, the user must use the portable transmitter with the LED on the locking device side Aim the receiver and press the transmitter. The broadcast by the broadcaster Light signal, which has a characteristic wavelength, is then from Receivers received and transmitted to the control unit, which checks whether a Coincidence of the emitted by the transmitter with the set light frequency is present. If this is the case, the control unit unlocks the locking device.

Hierbei ist es von Nachteil, dass der Benutzer noch selbst umständlich tätig werden muß, indem er den Sender gezielt auf den schließeinrichtungsseitigen Empfänger richten muß, was das System unkomfortabel macht.It is disadvantageous here that the user is still involved in laborious work must by targeting the transmitter to the locking device-side receiver must judge what makes the system uncomfortable.

Aus der DE 36 21 592 C1 ist eine Schließanlage bekannt, die aus einem Infrarot-Sender sowie aus mehreren fahrzeugseitig im Bereich der Fahrzeugaussenhaut angebrachten Infrarot-Empfängern besteht, die die Schließanlage steuern.From DE 36 21 592 C1 a locking system is known which consists of an infrared transmitter as well as several on the vehicle side in the area of the vehicle outer skin attached infrared receivers that control the locking system.

Zur Entsicherung der Schließanlage muß der Benutzer hierbei, wie bereits im vorgenannten Fall, den portablen Sender mit der IRdiode auf den schließanlagenseitigen Empfänger richten und den Sender betätigen. Das vom Sender ausgesandte IR-Licht, welches eine charakteristische Wellenlänge aufweist, wird sodann vom Empfänger analysiert und überprüft, ob eine Koinzidenz der vom Sender ausgesandten mit der eingestellten Lichtfrequenz vorliegt. Ist dies der Fall, dann entsichert die Steuereinheit die Schließeinrichtung.To unlock the locking system, the user must, as already in aforementioned case, the portable transmitter with the IR diode on the Set the receiver on the locking system side and actuate the transmitter. That from the broadcaster emitted IR light, which has a characteristic wavelength then analyzed by the receiver and checked whether there is a coincidence of the transmitter emitted with the set light frequency. If so, then the control unit unlocks the locking device.

Hierbei besteht ebenfalls der Nachteil, dass der Benutzer noch selbst umständlich tätig werden muß, indem er den Sender gezielt auf den schließeinrichtungsseitigen Empfänger richten muß, was das System unkomfortabel macht.There is also the disadvantage that the user is still cumbersome must act by targeting the transmitter on the locking device side Receiver must address what makes the system uncomfortable.

Aus der DE 34 40 442 A1 ist weiterhin ein Einbaudrucktaster für Fahrzeugtüren bekannt, der zwei Tastelemente aufweist, über die ein Mikroschalter betätigbar ist.From DE 34 40 442 A1 there is also a built-in push button for vehicle doors known, which has two probe elements, via which a microswitch can be actuated.

Aufgabe der Erfindung ist es, ein System der im Oberbegriff des Anspruches 1 genannten Art zu entwickeln, das einem Benutzer auf komfortable und sichere Weise Zutritt zu einem Kraftfahrzeug ermöglicht. Dies wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruches 1 genannten Maßnahmen erreicht, denen folgende besondere Bedeutung zukommt.The object of the invention is a system in the preamble of claim 1 to develop a way that a user in a comfortable and safe manner Allows access to a motor vehicle. This is according to the invention by the characterizing part of claim 1 measures achieved, those has the following special meaning.

Die Besonderheit der dort beschriebenen Maßnahmen liegt darin, daß in den Handhaben der Türgriffe wenigstens je eine Elektrode installiert ist und in dem der Handhabe gegenüber liegenden Teil der Türe eine Gegenelektrode angebracht ist, welche auch die Türe an sich sein kann. Wird zwischen beiden Elektroden ein elektrisches Feld aufgebaut, so kann dieses in vorteilhafter Weise dazu benutzt werden, bereits den Zutrittswunsch einer nach einem Türgriff greifenden Person zu sensieren. Dieses geschieht erfindungsgemäß dadurch, daß eine Hand, die nach einem der an den Türen befindlichen Handhaben langt, bei Ihrer Annäherung bereits eine Änderung der zwischen den beiden Elektroden aufgebauten Kapazität herbeiführt. Der Hand kommt dabei die besondere Funktion zu, daß sie das Dielektrikum zwischen der handhabenseitigen Elektrode und der türseitigen Gegenelektrode verändert, indem ein Teil der Umgebungsluft durch das Dielektrikum der Hand ersetzt wird und sich somit summativ ein anderes Gesamt-Dielektrikum ergibt. Vorteilhafterweise ist der gesamte Vorgang, von der Sensierung der Annäherung der Hand bis hin zum Empfang der vom Datenträger übermittelten Daten und dem darauffolgenden Entsichern des Schließsystems im Erkennungsfall einer Zugangsberechtigung, mit Sicherheit noch vor einer tatsächlichen Betätigung der Handhabe abgeschlossen.The peculiarity of the measures described there is that in the Handle the door handles at least one electrode is installed and in which the Handle has a counter electrode attached to the opposite part of the door, which can also be the door itself. Will be between two electrodes electric field built up, this can be used to advantage are already granting access to a person reaching for a door handle sensing. This happens according to the invention in that a hand that after a of the handles on the doors reaches one when you approach them Changes in the capacity built up between the two electrodes brings about. The hand has the special function that it is the dielectric between the handle-side electrode and the door-side counter electrode changed by part of the ambient air through the dielectric of your hand is replaced and thus a total total dielectric results. Advantageously, the entire process, from sensing the approach of the Hand up to the receipt of the data transmitted from the data carrier and the subsequent unlocking of the locking system in the event of detection of a Access authorization, certainly before the actual activation of the Handle completed.

Eine Elektronik, die die Veränderung der Kapazität wahrnimmt und in einen Befehlsimpuls übersetzt, ist vorzugsweise platzsparend in der Handhabe des Türgriffs enthalten. Der von dieser Elektronik erzeugte Befehlsimpuls löst in der elektrischen Steuereinheit die Abfrage des Datenträgers aus.Electronics that perceive the change in capacity and in one Command pulse translated, is preferably space-saving in the handle of the door handle contain. The command pulse generated by this electronics triggers in the electrical Control unit polls the disk.

Von Nutzen ist es auch, wenn eine weitere Elektrode zum Einsatz gelangt, die die Aufgabe hat, dem System Daten für eine Kompensation von Kapazitätsunterschieden aufgrund von wechselnden äußeren Rahmenbedingungen, wie z.B. durch wechselnde Witterungsverhältnisse, zu liefern.It is also useful if another electrode is used, which the The task is to provide the system with data to compensate for differences in capacity due to changing external conditions, e.g. by changing Weather conditions.

Weitere Maßnahmen und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, der nachfolgenden Beschreibung und den Zeichnungen. In den Zeichnungen ist die Erfindung in einem Ausführungsbeispiel dargestellt. Es zeigen:

Fig. 1
schematisch ein Fahrzeug mit einem integriertem Schließsystem,
Fig. 2
schematisch einen Datenträger, der hier in der Ausführungsform einer Scheckkarte dargestellt ist,
Fig. 3
einen perspektivisch dargestellten Türgriff,
Fig. 4
eine Handhabe und einen Teil einer Tür im Querschnitt.
Further measures and advantages of the invention result from the subclaims, the following description and the drawings. In the drawings, the invention is shown in one embodiment. Show it:
Fig. 1
schematically a vehicle with an integrated locking system,
Fig. 2
schematically a data carrier, which is shown here in the embodiment of a check card,
Fig. 3
a door handle shown in perspective,
Fig. 4
a handle and part of a door in cross section.

Wie aus Fig. 1 bis Fig. 4 zu entnehmen ist, handelt es sich bei der Erfindung um ein Schließsytem, das aus mehreren Komponenten 13 - 37 besteht, und das in dem hier dargestellten Ausführungsbeispiel in ein Fahrzeug 10 integriert ist. Dieses Schließsystem soll dem berechtigten Benutzer des Fahrzeugs 10 auf möglichst komfortable und einfache Weise den Zutritt zum Fahrzeug 10 ermöglichen. Aus Fig. 1 ist zu entnehmen, daß in diesem Ausführungsbeispiel an zwei Türen 12 je ein Türgriff 13 und ein Schloß 14 angebracht sind. Zum Türgriff 13 gehört eine Handhabe 27, wie ein Griffbügel oder eine Griffklappe, die einen kapazitiven Sensor 30 - 34 enthält. Von den Türgriffen 13 aus laufen Leiterbahnen 18 vom kapazitiven Sensor 30 - 34 zu einer elektrischen Steuereinheit 16. Über diese Leiterbahnen 18 wird ein Signal vom kapazitiven Sensor 30 - 34 im Falle der Annäherung einer Hand an den Zwischenraum zwischen Türgriff 13 und der Türe 12 an die elektrische Steuereinheit 16 abgegeben. In der elektrischen Steuereinheit 16 löst ein solches Signal eine Datenabfrage eines bedienerseitigen Datenträgers 20 (Fig. 2) aus, die die elektrische Steuereinheit 16 über die Leiterbahnen 19 an mehrere Sende/Empfangseinheiten 15 weitergibt, welche die Datenabfrage elektromagnetisch an den in Fig. 2 dargestellten Datenträger 20 übermitteln.As can be seen from FIGS. 1 to 4, the invention is a Locking system consisting of several components 13 - 37, and this in the here illustrated embodiment is integrated in a vehicle 10. This Locking system should be possible for the authorized user of vehicle 10 Allow access to vehicle 10 in a comfortable and simple manner. From Fig. 1 can be seen that in this embodiment, two doors 12 each Door handle 13 and a lock 14 are attached. One belongs to the door handle 13 Handle 27, such as a handle or a handle flap, which has a capacitive sensor 30-34 contains. From the door handles 13 conductors 18 run from the capacitive Sensor 30-34 to an electrical control unit 16. Via these conductor tracks 18 will be a signal from the capacitive sensor 30-34 in the event of a hand approaching to the space between the door handle 13 and the door 12 to the electrical Control unit 16 issued. This is triggered in the electrical control unit 16 Signal a data query from a user-side data carrier 20 (FIG. 2), which the electrical control unit 16 via the conductor tracks 19 to a plurality of transmitting / receiving units 15 passes on, which the data query electromagnetically to the Transmit data carrier 20 shown in Fig. 2.

Im Datenträger 20 wird das Kommando zur Datenausgabe über eine Antenne 24 aufgefangen und an einen Empfänger 22 des Datenträgers 20 weitergeleitet. Der Empfänger 22 gibt das Signal an die Dateneinheit 23 des Datenträgers 20 weiter, der die abgerufenen Daten über einen Sender 21 und die Antenne 24 des Datenträgers 20 an die Sende-/Empfangseinheiten 15 im Fahrzeug 10 übermittelt. Im Datenträger 20 befinden sich neben den oben genannten Einheiten in diesem Ausführungsbeispiel auch noch eine Stromversorgung 26 sowie eine Elektronik 25, die die Funktionen des Datenträgers 20 mit steuert.In data carrier 20 there is the command for data output via an antenna 24 caught and forwarded to a receiver 22 of the data carrier 20. The Receiver 22 forwards the signal to the data unit 23 of the data carrier 20 the data retrieved via a transmitter 21 and the antenna 24 of the data carrier 20 transmitted to the transmitting / receiving units 15 in the vehicle 10. In disk 20 are in addition to the units mentioned above in this embodiment also a power supply 26 and electronics 25, the functions of the Data carrier 20 controls.

Die Sende-/Empfangseinheiten 15 geben die empfangenen Daten über die Leiterbahnen 19 an die elektrische Steuereinheit 16 weiter. In der elektrischen Steuereinheit 16 werden die vom Datenträger 20 gelieferten Daten mit den in der elektrischen Steuereinheit 16 gespeicherten Kennungsdaten verglichen. Im positiven Datenerkennungsfall (Anerkennung der Zutrittsberechtigung) gibt die elektrische Steuereinheit 16 mittels der Leiterbahnen 17 ein Signal zur Entsicherung der Schlösser 14 an diese weiter, welches die Handhaben 27 von einem unwirksamen in einen wirksamen Modus überführt. In diesem wirksamen Zustand der Handhaben 27 ist eine Öffnung der Schlösser 14 durch Betätigung der Handhabe möglich.The transmitting / receiving units 15 pass the received data on the Conductor tracks 19 to the electrical control unit 16. In the electrical Control unit 16, the data supplied by the data carrier 20 with the in the electrical control unit 16 compared stored identification data. In the positive Data detection case (recognition of access authorization) gives the electrical Control unit 16 by means of the conductor tracks 17 a signal to unlock the Locks 14 to this, which the handle 27 of an ineffective in transferred an effective mode. In this effective condition, the handles 27 the locks 14 can be opened by actuating the handle.

Die Stromversorgung des Schließsystems, der elektrischen Steuereinheit 16 und der anderen wirksamen elektrischen Bauteile wird bei diesem Ausführungsbeispiel von der Autobatterie 11 übernommen. The power supply of the locking system, the electrical control unit 16 and the other effective electrical components in this embodiment of the car battery 11 taken over.

Wie aus Fig. 3 und Fig. 4 zu entnehmen ist, ist eine erste Elektrode 30 des kapazitiven Sensors 30 - 34 in diesem Ausführungsbeispiel zweigeteilt und symmetrisch in einer Innenschale 28 einer Handhabe 27 angeordnet. Die Querprofile der beiden Teile der ersten Elektrode 30 haben, wie aus dem Querschnitt der Handhabe 27 in Fig. 4 ersichtlich, ein L-Profil. Mittig zwischen den beiden Teilen der Elektrode 30 ist die Kompensationselektrode 33 angeordnet. In dem dem Schließzylinder 37 zugewandten Teil der Handhabe 27 ist die Elektronik 34 des kapazitiven Sensors 30-34 in diesem Ausführungsbeispiel auf der Innenschale 28 angebracht. Die Elektroden 30, 33 und die Elektronik 34 sind luftabschlüssig mit einer Isolierschicht 36 überzogen.As can be seen from FIGS. 3 and 4, a first electrode 30 of the capacitive sensor 30 - 34 in this embodiment divided into two and arranged symmetrically in an inner shell 28 of a handle 27. The cross profiles of the two parts of the first electrode 30, as shown in the cross section of FIG Handle 27 shown in Fig. 4, an L-profile. Midway between the two parts of the The compensation electrode 33 is arranged in the electrode 30. In that Lock cylinder 37 facing part of the handle 27 is the electronics 34 of the capacitive sensor 30-34 in this exemplary embodiment on the inner shell 28 appropriate. The electrodes 30, 33 and the electronics 34 are air-tight with an insulating layer 36 coated.

Aus Fig. 3 ist zu ersehen, daß sich in einer Außenschale 29 der Handhabe 27 ein Tastschalter 35 befindet, der in dieser Ausführungsform ein Verriegeln des Schließsystems 13 - 37 durch ein Betätigen desselben ermöglicht.From Fig. 3 it can be seen that the handle 27 in an outer shell 29 Key switch 35 is located, which in this embodiment locks the Locking system 13 - 37 made possible by actuating the same.

Wie aus Fig. 4 ersichtlich, wird in dieser Ausführungsform entlang der Außenschale 29 die Leiterbahn 18 geführt. Desweiteren ist in der Fig. 4 die ungefähre Ausbreitung eines elektrischen Feldes 32 zwischen der ersten Elektrode 30 und einer zweiten Elektrode 31, die in dieser Ausführungsform der Tür 12 des Fahrzeugs 10 entspricht, dargestellt.As can be seen from Fig. 4, in this embodiment, along the outer shell 29 guided the conductor track 18. Furthermore, the approximate spread is in FIG. 4 an electric field 32 between the first electrode 30 and a second Electrode 31, which corresponds to door 12 of vehicle 10 in this embodiment, shown.

Im Falle eines Stromausfalls kann die Türe 12 auch mittels des Schließzylinders 37 mit einem für solche Fälle vorgesehenen Schlüssel geöffnet werden.In the event of a power failure, the door 12 can also be locked using the lock cylinder 37 can be opened with a key provided for such cases.

Es bleibt nun noch zu bemerken, dass die hier dargestellte Ausführungsform nur eine beispielhafte Verwirklichung der Erfindung darstellt. Diese ist jedoch nicht darauf beschränkt. Es könnte so z.B. der Tastschalter durch einen zweiten, zusätzlich in der Außenschale der Handhabe 27 angebrachten Sensor ersetzt werden, der den Wunsch einer Person nach einem Sichern des Fahrzeugs durch Vorbeistreichen der Hand vor der dem Fahrzeug 10 abgewandten Seite der Handhabe 27 sensiert. Die Elektroden sind ebenfalls nicht auf eine bestimmte Form beschränkt, sie können vielmehr jede Form aufweisen, die für die jeweilige Elektrode möglich ist. Die Anzahl der Sensoren ist gleichfalls nicht auf eine bestimmte Anzahl beschränkt. It remains to be noted that the embodiment shown here is only one exemplifies implementation of the invention. However, this is not on it limited. It could e.g. the push button switch by a second, additionally in the Outer shell of the handle 27 attached sensor to be replaced, the desire a person after securing the vehicle by swiping their hand in front the side of the handle 27 facing away from the vehicle 10. The electrodes are also not limited to any particular form, but rather can be any Have shape that is possible for the respective electrode. The number of sensors is also not limited to a certain number.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Fahrzeugvehicle
1111
Autobatteriecar battery
1212
Türdoor
1313
Türgriffdoor handle
1414
SchloßLock
1515
Sende-/EmpfangseinheitTransmit / receive unit
1616
elektrische Steuereinheitelectrical control unit
1717
Leiterbahn (elektrische Steuereinheit - Schließzylinder)Conductor (electrical control unit - locking cylinder)
1818
Leiterbahn (elektrische Steuereinheit - kapazitiver Sensor)Conductor (electrical control unit - capacitive sensor)
1919
Leiterbahn (elektrische Steuereinheit - Sende-/Empfangseinheit)Conductor (electrical control unit - transmitter / receiver unit)
2020
Datenträgerdisk
2121
Sender (des Datenträgers)Sender (of the data carrier)
2222
Empfänger (des Datenträgers)Recipient (of the data carrier)
2323
Dateneinheit (des Datenträgers)Data unit (of the data carrier)
2424
Antenne (des Datenträgers)Antenna (of data carrier)
2525
Elektronik (des Datenträgers)Electronics (of the data carrier)
2626
Stromversorgung (des Datenträgers)Power supply (of the data carrier)
2727
Handhabehandle
2828
Innenschale (der Handhabe)Inner shell (of the handle)
2929
Außenschale (der Handhabe)Outer shell (of the handle)
3030
erste Elektrodefirst electrode
3131
zweite Elektrodesecond electrode
3232
elektrisches Feldelectric field
3333
Kompensationselektrodecompensation electrode
3434
Elektronik (des kapazitiven Sensors)Electronics (of the capacitive sensor)
3535
TastschalterPush switch
3636
Isolierschichtinsulating
3737
Schließzylinderlock cylinder

Claims (10)

  1. Locking system especially for motor vehicles, consisting of a lock (14), to be actuated by a grip (27) on at least one door (12), tail gate, etc.,
    where the lock (14) can be switched between two different positions, namely, a secured position which makes the grip (27) inoperative
    and another position which allows the grip (27) to operate, in which position the lock (14) is to opened by actuation of the grip (27),
    and in which a sensor (30-34), located near the grip (27) and connected to an electrical control unit (16), initiates the process by which a data storage medium (20), held by the operator, is interrogated for data by the electrical control unit (16);
    where the electrical control unit (16) is connected to a send/receiver unit (15) and transmits via this unit the data request to the data storage medium (20) held by the operator,
    and the data storage medium (20) transmits its data from a data unit (23) via a transmitter (21) to the send/receiver unit (15) in the vehicle,
    and the send/receiver unit (15) passes the data along to the electrical control unit (16),
    and the electrical control unit (16), in the event of a positive data identification, orders the release of the lock or locks on at least one door (12), tail gate, etc., of the vehicle (10),
    characterized in that
    the sensor (30-34) is designed as a capacitance sensor; in that at least a first electrode (30) of the capacitance sensor (30-34) is integrated into the grip (27), whereas a second electrode (31) of the capacitance sensor (30-34) is mounted near the grip (27) on the door as a structural component of the sheet metal construction of the door, so that an electrical field (32) is generated between the electrodes; and in that the capacitance between the two electrodes (30, 31) can be changed by the dielectric of a human hand entering the area of the electrical field (32) and thus detected.
  2. Locking system according to Claim 1, characterized in that the electronic circuit (34) of the capacitance sensor (30-34) is integrated into the grip (27).
  3. Locking system according to one of Claims 1 - 2, characterized in that the grip (27) has another electrode, which functions as a compensating electrode (33).
  4. Locking system according to one of Claims 1 - 3, characterized in that the first electrode (30) is divided into two electrode parts.
  5. Locking system according to one of Claims 1 - 4, characterized in that the first electrode (30) is mounted symmetrically in an inner shell (28) of the grip (27).
  6. Locking system according to one of Claims 1 - 5, characterized in that the two electrode parts of the first electrode (30) extend along the long edges of the inner shell (28) of the grip (27).
  7. Locking system according to one of Claims 1 - 6, characterized in that the compensating electrode (33) is mounted between the two electrode parts of the first electrode (30).
  8. Locking system according to one of Claims 1 - 7, characterized in that an additional sensor for locking the locking system is built into the grip (27).
  9. Locking system according to one of Claims 1 - 8, characterized in that an additional electrode in the grip (27) is assigned to the additional sensor.
  10. Locking system according to one of Claims 1 - 9, characterized in that the locking of the locking system is initiated by the use of a mechanical push-button switch (35).
EP97918137A 1996-04-27 1997-04-16 Locking system for motor vehicles Expired - Lifetime EP0895559B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19617038 1996-04-27
DE19617038A DE19617038C2 (en) 1996-04-27 1996-04-27 Locking system, in particular for motor vehicles
PCT/EP1997/001890 WO1997041322A1 (en) 1996-04-27 1997-04-16 Locking system, particularly for motor vehicles

Publications (2)

Publication Number Publication Date
EP0895559A1 EP0895559A1 (en) 1999-02-10
EP0895559B1 true EP0895559B1 (en) 2002-01-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97918137A Expired - Lifetime EP0895559B1 (en) 1996-04-27 1997-04-16 Locking system for motor vehicles

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US (1) US6075294A (en)
EP (1) EP0895559B1 (en)
JP (1) JP2000509121A (en)
KR (1) KR100406329B1 (en)
CN (1) CN1119488C (en)
AU (1) AU731480B2 (en)
BR (1) BR9708868A (en)
DE (2) DE19617038C2 (en)
ES (1) ES2166535T3 (en)
PT (1) PT895559E (en)
WO (1) WO1997041322A1 (en)

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US6075294A (en) 2000-06-13
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KR100406329B1 (en) 2004-03-09
ES2166535T3 (en) 2002-04-16

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