EP0984124A2 - Electronic key - Google Patents

Electronic key Download PDF

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Publication number
EP0984124A2
EP0984124A2 EP99116960A EP99116960A EP0984124A2 EP 0984124 A2 EP0984124 A2 EP 0984124A2 EP 99116960 A EP99116960 A EP 99116960A EP 99116960 A EP99116960 A EP 99116960A EP 0984124 A2 EP0984124 A2 EP 0984124A2
Authority
EP
European Patent Office
Prior art keywords
key
signal
electronic key
identification signal
excitation
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.)
Withdrawn
Application number
EP99116960A
Other languages
German (de)
French (fr)
Other versions
EP0984124A3 (en
Inventor
Christopher Sievers
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
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
Priority claimed from DE19937915A external-priority patent/DE19937915A1/en
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0984124A2 publication Critical patent/EP0984124A2/en
Publication of EP0984124A3 publication Critical patent/EP0984124A3/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • 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
    • 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
    • G07C9/00944—Details of construction or manufacture
    • G07C2009/0096—Electronic keys comprising a non-biometric sensor
    • 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
    • G07C2209/62—Comprising means for indicating the status of the lock

Definitions

  • the invention relates to an electronic key for contactless Unlocking a motor vehicle with a receiving unit and one Sending unit for sending an identification signal when it occurs an excitation signal.
  • Such keys respond to an excitation signal from the motor vehicle is sent at regular intervals.
  • the key sends in Receiving this signal, in turn, an identification signal, which is received and verified by the motor vehicle. Once an identification of the key could be successfully carried out Motor vehicle unlocked and released for the owner of the key.
  • the key can also be sent over longer distances to cause the identification signal and the identification signal to catch up. In this way, the identification signal of the key get into the possession of unauthorized persons and open the motor vehicle be misused.
  • the object of the present invention is an electronic key to indicate for a motor vehicle, which against external excitation by Unauthorized persons can be protected.
  • the transmission of the identification signal should can also be prevented if the key is not used.
  • This object is achieved in that the transmission is prevented of an identification signal the energy supply of the key can be interrupted by a switch arranged on the key.
  • the excitation signal is noticed Invention provided a signal generator on the key, which occurs when it occurs gives a warning of the excitation signal.
  • the signal generator is a buzzer, which at Emits a warning tone when the excitation signal occurs.
  • the signal transmitter is a lamp, which at Occurrence of the excitation signal lights up.
  • the owner of the key can use it switch off and thus prevent unauthorized persons from using the identification signal can receive.
  • the inventive vehicle access and Driving authorization system is a contactless query of a trained as transmitter 1 identification transmitter (radio key) Opening and starting a vehicle is much easier designed.
  • the transmitter 1 can be arbitrarily on the body (for example in the pants or coat ash) must be worn and does not have to be explicit to be served.
  • the radio key is activated by a start signal from the transmission device fully automatic without manual user intervention activated.
  • the release signal is only sent if the the person carrying the radio key at a predetermined distance from Motor vehicle stands, which is within the range of the transmitter Transmission device is.
  • the device has a transmission device designed as a safety device 2 on which in a motor vehicle shown in Figure 1 is permanently installed.
  • the radio key 1 contains a computing unit 3, which via a long-wave receiver 4 and a short-wave transmitter 5 disposes. Numbers are generated from a random generator 6 which with the help of an algorithm stored in the computing unit 3 an encoding is generated.
  • the security device 2 also contains a computing unit 7, which with a long-wave transmitter 8 and a short-wave receiver 9 connected is.
  • the computing unit 7 represents a control device which with a central locking 10 and an immobilizer 11 of the motor vehicle is connected to their control.
  • One on a door handle of the motor vehicle arranged sensor 12 delivers a signal to the Computing unit 7 as soon as a door handle is operated.
  • This computing unit too 7 contains a random number from a random number generator 15 which it processed using an algorithm identical to that in the Computing unit 3 stored algorithm works.
  • This start signal 13 consists of at least two code components, wherein the first code component is a fixed code corresponding to the vehicle identifier and the second code portion contains a variable identifier, which as actual challenge signal is used. But it is also conceivable that both Parts of the start signal 13 are designed as a fixed code or both parts include a variable identifier. It's the advantage of the variable identifier, that after each transmission by the computing unit 7 of the Control unit in the motor vehicle can be changed, which is an additional System security enabled.
  • This excitation signal 13 is from the long-wave receiver 4 Radio key 1 received, whereupon the computing unit 3 of the radio key 1 is activated and the transmission of an identification signal 14 causes (response).
  • the shortwave receiver 9 of the security device 2 receives this Signal 14 and forwards it to the computing unit 7, which the identification signal 14 with a stored in it or by the algorithm compares generated code. If the information matches the computing unit 7 either outputs a control signal to the central locking system 10 of the vehicle for opening or closing the Vehicle doors and / or to an immobilizer 11 for activation or Deactivation of the drive of the motor vehicle.
  • a switch 16 is arranged between the computing unit 3 and the battery U B.
  • a buzzer 15 is arranged on the electronic key 1 and emits a warning tone when an excitation signal 13 is received.
  • the energy supply U B of the key 1 can be interrupted by means of a slide switch 16 as soon as a warning is given or the key is not used.
  • the key 1 shown has a mechanical key part 17 for actuating the ignition lock or other locks.
  • the invention also encompasses keys that do not require a mechanical key part, or keys with an integrated remote control.

Abstract

The electronic key (1) has a receiver unit and a transmitter unit for transmitting an identification signal (14) when a stimulation signal (13) is received. To prevent the transmission of an identification signal the power supply for the key can be interrupted by a switch mounted on the key. A signal generator in the key can emit a warning when a stimulation signal is received. Independent claims are also used for a method of securing an electronic key and an arrangement for triggering and/or activating/deactivating a security arrangement.

Description

Die Erfindung betrifft einen elektronischen Schlüssel zum berührungslosen Entriegeln eines Kraftfahrzeuges mit einer Empfangseinheit und einer Sendeeinheit zum Aussenden eines Identifikationssignals bei Auftreten eines Anregungssignals.The invention relates to an electronic key for contactless Unlocking a motor vehicle with a receiving unit and one Sending unit for sending an identification signal when it occurs an excitation signal.

Zum berührungslosen Entriegeln eines Kraftfahrzeuges werden in zunehmendem Maße elektronische Schlüssel eingesetzt. Derartige Schlüssel reagieren auf ein Anregungssignal, welches von dem Kraftfahrzeug in regelmäßigen Abständen ausgesendet wird. Der Schlüssel sendet bei Empfang dieses Signals seinerseits ein Identifikationssignal aus, welches vom Kraftfahrzeug empfangen und verifiziert wird. Sobald eine Identifikation des Schlüssels erfolgreich durchgeführt werden konnte, wird das Kraftfahrzeug entriegelt und für den Besitzer des Schlüssels freigegeben.For the contactless unlocking of a motor vehicle are increasing Dimensions electronic key used. Such keys respond to an excitation signal from the motor vehicle is sent at regular intervals. The key sends in Receiving this signal, in turn, an identification signal, which is received and verified by the motor vehicle. Once an identification of the key could be successfully carried out Motor vehicle unlocked and released for the owner of the key.

Bisherige Erfahrungen haben gezeigt, daß es durchaus Methoden gibt, den Schlüssel auch über weitere Entfernungen hinweg zum Aussenden des Identifikationssignals zu veranlassen und das Identifikationssignal aufzufangen. Auf diese Weise kann das Identifikationssignal des Schlüssels in den Besitz Unbefugter gelangen und zum Öffnen des Kraftfahrzeuges mißbraucht werden. Experience to date has shown that there are methods the key can also be sent over longer distances to cause the identification signal and the identification signal to catch up. In this way, the identification signal of the key get into the possession of unauthorized persons and open the motor vehicle be misused.

Ferner wird bei jeder Abgabe des Identifikationssignals Energie verbraucht. Dadurch wird Energie verschwendet, wenn der Schlüssel Anregungssignale fremder Kraftfahrzeuge mißinterpretiert und ein Identifikationssignal sendet oder wenn der Schlüssel ständig zur Aussendung der Identifikationssignale angeregt wird, auch während das Kraftfahrzeug nicht benutzt wird.Furthermore, energy is consumed each time the identification signal is emitted. This wastes energy when the key is Excitation signals from other vehicles misinterpreted and an identification signal sends or if the key is constantly being sent the identification signals are excited, even while the motor vehicle is not used.

Aufgabe der vorliegenden Erfindung ist es, einen elektronischen Schlüssel für ein Kraftfahrzeug anzugeben, welcher gegen Fremderregung durch Unbefugte schützbar ist. Die Aussendung des Identifikationssignals soll ferner bei Nichtbenutzung des Schlüssels unterbunden werden können.The object of the present invention is an electronic key to indicate for a motor vehicle, which against external excitation by Unauthorized persons can be protected. The transmission of the identification signal should can also be prevented if the key is not used.

Diese Aufgabe wird dadurch gelöst, daß zur Verhinderung der Aussendung eines Identifikationssignales die Energieversorgung des Schlüssels durch einen an dem Schlüssel angeordneten Schalter unterbrechbar ist.This object is achieved in that the transmission is prevented of an identification signal the energy supply of the key can be interrupted by a switch arranged on the key.

Sobald der Benutzer den Schlüssel nicht benötigt, schaltet er diesen einfach aus. Damit ist es einem Unbefugten unmöglich, mittels eines nachgeahmten Anregungssignals den Schlüssel zur Aussendung seines Identifikationssignals anzuregen. Ferner wird der Schlüssel auch auf andere, harmlose Anregungssignale nicht mehr reagieren und damit seinen Energieverbrauch erheblich senken.As soon as the user does not need the key, he switches it just out. This makes it impossible for an unauthorized person to use an mimicked excitation signal the key to sending his To stimulate identification signal. The key also turns on other, harmless excitation signals stop responding and therefore significantly reduce its energy consumption.

Damit der Besitzer des Schlüssels auf ein vom Schlüssel registriertes Anregungssignal aufmerksam wird, ist bei einer ersten Ausgestaltung der Erfindung ein Signalgeber am Schlüssel vorgesehen, welcher bei Auftreten des Anregungssignals eine Warnung abgibt. Dazu kann einerseits vorgesehen sein, daß der Signalgeber ein Summer ist, welcher bei Auftreten des Anregungssignals einen Warnton abgibt. Andererseits kann auch vorgesehen sein, daß der Signalgeber eine Lampe ist, welche bei Auftreten des Anregungssignals aufleuchtet.So that the owner of the key on one registered by the key In a first embodiment, the excitation signal is noticed Invention provided a signal generator on the key, which occurs when it occurs gives a warning of the excitation signal. This can be done on the one hand be provided that the signal generator is a buzzer, which at Emits a warning tone when the excitation signal occurs. On the other hand, can also be provided that the signal transmitter is a lamp, which at Occurrence of the excitation signal lights up.

Sobald die Warnung erfolgt, kann der Besitzer des Schlüssels diesen ausschalten und damit verhindern, daß Unbefugte das Identifikationssignal empfangen können.As soon as the warning is given, the owner of the key can use it switch off and thus prevent unauthorized persons from using the identification signal can receive.

Um den Benutzer des Schlüssels zu entlasten, ist bei einer Weiterbildung vorgesehen, daß ein Bewegungssensor in den Schlüssel eingebaut ist, der Bewegungen des Schlüssels registriert. Weiterhin ist vorgesehen, daß der Schlüssel automatisch deaktiviert wird, sobald er für eine vorgegebene Zeitdauer nicht bewegt wurde.To relieve the user of the key, is in a training provided that a motion sensor is built into the key, the movements of the key. It is also provided that the key is automatically deactivated as soon as it is for a given one Period has not been moved.

Die Erfindung läßt zahlreiche Ausführungsformen zu. Eine davon ist in der Zeichnung anhand zweier Figuren dargestellt und nachfolgend beschrieben. Es zeigt:

  • Figur 1: Sicherheitseinrichtung eines Kraftfahrzeuges
  • Figur 2: elektronischer Schlüssel.
    • The invention permits numerous embodiments. One of them is shown in the drawing using two figures and described below. It shows:
  • Figure 1: Safety device of a motor vehicle
  • Figure 2: electronic key.

    • Gleiche Teile sind in den Figuren mit gleichen Bezugszeichen versehen.Identical parts are provided with the same reference symbols in the figures.

    Bei dem in Figur 1 gezeigten erfindungsgemäßen Fahrzeugzugangs- und Fahrberechtigungssystem wird durch eine berührungslose Abfrage eines als Sender 1 ausgebildeten Identifikationsgebers (Funkschlüssel) das Öffnen und das Starten eines Fahrzeuges wesentlich komfortabler gestaltet. Der Sender 1 kann dabei beliebig am Körper (zum Beispiel in der Hosen- oder Mantelasche) getragen werden und muß nicht explizit bedient werden. Der Funkschlüssel wird durch ein Startsignal der Übertragungseinrichtung ohne manuelles Eingreifen des Nutzers vollautomatisch aktiviert. Das Freigabesignal wird nur dann ausgesendet, wenn die den Funkschlüssel tragende Person in einem vorgegebenen Abstand zum Kraftfahrzeug steht, welcher innerhalb der Reichweite des Senders der Übertragungsvorrichtung liegt.In the inventive vehicle access and Driving authorization system is a contactless query of a trained as transmitter 1 identification transmitter (radio key) Opening and starting a vehicle is much easier designed. The transmitter 1 can be arbitrarily on the body (for example in the pants or coat ash) must be worn and does not have to be explicit to be served. The radio key is activated by a start signal from the transmission device fully automatic without manual user intervention activated. The release signal is only sent if the the person carrying the radio key at a predetermined distance from Motor vehicle stands, which is within the range of the transmitter Transmission device is.

    Die Vorrichtung weist eine als Sicherheitsgerät 2 ausgebildete Übertragungseinrichtung auf, welche in einem in Figur 1 dargestellten Kraftfahrzeug fest installiert ist. Der Funkschlüssel 1 enthält eine Recheneinheit 3, welche über einen Langwellenempfänger 4 und einen Kurzwellensender 5 verfügt. Von einem Zufallsgenerator 6 werden Zahlen generiert, aus welchen mit Hilfe eines in der Recheneinheit 3 abgelegten Algorithmus eine Codierung erzeugt wird.The device has a transmission device designed as a safety device 2 on which in a motor vehicle shown in Figure 1 is permanently installed. The radio key 1 contains a computing unit 3, which via a long-wave receiver 4 and a short-wave transmitter 5 disposes. Numbers are generated from a random generator 6 which with the help of an algorithm stored in the computing unit 3 an encoding is generated.

    Das Sicherheitsgerät 2 enthält ebenfalls eine Recheneinheit 7, die mit einem Langwellensender 8 und einem Kurzwellenempfänger 9 verbunden ist. Darüber hinaus stellt die Recheneinheit 7 ein Steuergerät dar, welches mit einer Zentralverriegelung 10 und einer Wegfahrsperre 11 des Kraftfahrzeuges zu deren Ansteuerung verbunden ist. Ein an einem Türgriff des Kraftfahrzeugs angeordneter Sensor 12 liefert ein Signal an die Recheneinheit 7, sobald ein Türgriff betätigt wird. Auch diese Recheneinheit 7 enthält eine Zufallszahl von einem Zufallsgenerator 15, welche sie mit Hilfe eines Algorithmus verarbeitet, der identisch mit dem in der Recheneinheit 3 abgelegten Algorithmus funktioniert.The security device 2 also contains a computing unit 7, which with a long-wave transmitter 8 and a short-wave receiver 9 connected is. In addition, the computing unit 7 represents a control device which with a central locking 10 and an immobilizer 11 of the motor vehicle is connected to their control. One on a door handle of the motor vehicle arranged sensor 12 delivers a signal to the Computing unit 7 as soon as a door handle is operated. This computing unit too 7 contains a random number from a random number generator 15 which it processed using an algorithm identical to that in the Computing unit 3 stored algorithm works.

    Zwischen dem Funkschlüssel 1 und dem Sicherheitsgerät 2 werden berührungslos Signale ausgetauscht. Erhält die Recheneinheit 7 des Sicherheitsgerätes 2 ein Signal vom Sensor 12, erzeugt die Recheneinheit 7 ein Startsignal 13, welches über den Langwellensender 8 ausgesendet wird (Challenge). Be between the radio key 1 and the security device 2 Signals exchanged without contact. Receives the computing unit 7 of the Security device 2 generates a signal from sensor 12, the computing unit 7 a start signal 13 which is emitted via the long-wave transmitter 8 becomes (Challenge).

    Dieses Startsignal 13 besteht aus mindestens zwei Codeanteilen, wobei der erste Codeanteil ein der Fahrzeugkennung entsprechender Festcode und der zweite Codeanteil eine variable Kennung beinhaltet, welche als eigentliches Challengesignal dient. Es ist aber auch vorstellbar, daß beide Teile des Startsignales 13 als Festcode ausgebildet sind bzw. beide Teile eine variable Kennung beinhalten. Es ist der Vorteil der variablen Kennung, daß diese nach jedem Aussenden durch die Recheneinheit 7 des Steuergerätes im Kraftfahrzeug geändert werden kann, was eine zusätzliche Sicherheit des Systems ermöglicht.This start signal 13 consists of at least two code components, wherein the first code component is a fixed code corresponding to the vehicle identifier and the second code portion contains a variable identifier, which as actual challenge signal is used. But it is also conceivable that both Parts of the start signal 13 are designed as a fixed code or both parts include a variable identifier. It's the advantage of the variable identifier, that after each transmission by the computing unit 7 of the Control unit in the motor vehicle can be changed, which is an additional System security enabled.

    Dieses Anregungssignal 13 wird vom Langwellenempfänger 4 des Funkschlüssels 1 empfangen, worauf die Recheneinheit 3 des Funkschlüssels 1 aktiviert wird und die Aussendung eines Identifikationssignals 14 veranlaßt (Response).This excitation signal 13 is from the long-wave receiver 4 Radio key 1 received, whereupon the computing unit 3 of the radio key 1 is activated and the transmission of an identification signal 14 causes (response).

    Der Kurzwellenempfänger 9 des Sicherheitsgerätes 2 empfängt das Signal 14 und leitet es an die Recheneinheit 7 weiter, welche das Identifikationssignal 14 mit einem in ihm gespeicherten oder durch den Algorithmus erzeugten Code vergleicht. Bei Übereinstimmung der Informationen gibt die Recheneinheit 7 entweder ein Ansteuersignal an die Zentralverriegelung 10 des Fahrzeuges zum Öffnen bzw. zum Schließen der Fahrzeugtüren und/oder an eine Wegfahrsperre 11 zur Aktivierung bzw. Deaktivierung des Antriebs des Kraftfahrzeuges aus.The shortwave receiver 9 of the security device 2 receives this Signal 14 and forwards it to the computing unit 7, which the identification signal 14 with a stored in it or by the algorithm compares generated code. If the information matches the computing unit 7 either outputs a control signal to the central locking system 10 of the vehicle for opening or closing the Vehicle doors and / or to an immobilizer 11 for activation or Deactivation of the drive of the motor vehicle.

    Um zu verhindern, daß bei Aussendung des Anregungssignales 13 durch einen Unbefugten ein Identifikationssignal 14 erzeugt wird, ist zwischen der Recheneinheit 3 und der Batterie UB ein Schalter 16 angeordnet.In order to prevent an identification signal 14 from being generated by an unauthorized person when the excitation signal 13 is transmitted, a switch 16 is arranged between the computing unit 3 and the battery U B.

    Gemäß Figur 2 ist an dem elektronischen Schlüssel 1 ein Summer 15 angeordnet, welcher bei Empfang eines Anregungssignals 13 einen Warnton abgibt. Mittels eines Schiebeschalters 16 läßt sich die Energieversorgung UB des Schlüssels 1 unterbrechen, sobald eine Warnung erfolgt oder der Schlüssel nicht gebraucht wird. Der abgebildete Schlüssel 1 weist ein mechanisches Schlüsselteil 17 zur Betätigung des Zündschlosses oder anderer Schlösser auf. Die Erfindung umfaßt aber auch Schlüssel, die ohne mechanisches Schlüsselteil auskommen, oder solche mit integrierter Fernbedienung.According to FIG. 2, a buzzer 15 is arranged on the electronic key 1 and emits a warning tone when an excitation signal 13 is received. The energy supply U B of the key 1 can be interrupted by means of a slide switch 16 as soon as a warning is given or the key is not used. The key 1 shown has a mechanical key part 17 for actuating the ignition lock or other locks. However, the invention also encompasses keys that do not require a mechanical key part, or keys with an integrated remote control.

    Claims (8)

    Elektronischer Schlüssel zum berührungslosen Entriegeln eines Kraftfahrzeuges mit einer Empfangseinheit und einer Sendeeinheit zum Aussenden eines Identifikationssignals bei Auftreten eines Anregungssignals, dadurch gekennzeichnet, daß zur Verhinderung der Aussendung eines Identifikationssignales (14) die Energieversorgung (UB) des Schlüssels (1) durch einen an dem Schlüssel (1) angeordneten Schalter (16) unterbrechbar ist.Electronic key for contactless unlocking of a motor vehicle with a receiving unit and a transmitting unit for sending an identification signal when an excitation signal occurs, characterized in that to prevent the sending of an identification signal (14) the energy supply (U B ) of the key (1) by one at the Key (1) arranged switch (16) can be interrupted. Elektronischer Schlüssel nach Anspruch 1, dadurch gekennzeichnet, daß ein Signalgeber (15) am Schlüssel (1) vorgesehen ist, welcher bei Auftreten des Anregungssignals (13) eine Warnung abgibt.Electronic key according to claim 1, characterized in that that a signal transmitter (15) is provided on the key (1), which issues a warning when the excitation signal (13) occurs. Elektronischer Schlüssel nach Anspruch 2, dadurch gekennzeichnet, daß der Signalgeber ein Summer (15) ist, welcher bei Auftreten des Anregungssignals einen Warnton abgibt.Electronic key according to claim 2, characterized in that the signal generator is a buzzer (15), which occurs when the Emits a warning signal. Elektronischer Schlüssel nach Anspruch 2, dadurch gekennzeichnet, daß der Signalgeber (15) eine Lampe ist, welche bei Auftreten des Anregungssignals aufleuchtet.Electronic key according to claim 2, characterized in that the signal generator (15) is a lamp which, when the Excitation signal lights up. Elektronischer Schlüssel nach Anspruch 2, dadurch gekennzeichnet, daß ein Bewegungssensor in den Schlüssel (1) eingebaut ist, der Bewegungen des Schlüssels (1) registriert. Electronic key according to claim 2, characterized in that a motion sensor is installed in the key (1), the Movements of the key (1) registered. Verfahren zur Sicherung eines elektronischen Schlüssels nach Anspruch 5 gegen Aussenden eines Identifikationssignals bei Fremderregung, dadurch gekennzeichnet, daß der Schlüssel (1) automatisch abgeschaltet wird, sobald er für eine vorgegebene Zeitdauer nicht bewegt wurde.Procedure for securing an electronic key Claim 5 against sending an identification signal External excitation, characterized in that the key (1) is automatically switched off as soon as it is for a specified period of time was not moved. Verfahren zur Sicherung eines elektronischen Schlüssels nach Anspruch 6, dadurch gekennzeichnet, daß der Schlüssel (1) bei Feststellung einer Bewegung wieder eingeschaltet wird.Procedure for securing an electronic key Claim 6, characterized in that the key (1) at Detection of a movement is turned on again. Vorrichtung zur Freigabe und/oder Aktivierung/Deaktivierung einer Sicherheitseinrichtung, insbesondere einer Zugangseinrichtung für ein Kraftfahrzeug, bei welcher nach Erhalt eines durch einen Sender einer Übertragungseinrichtung ausgesendeten Anregungssignales von einer tragbaren Sendeeinheit (Funkschlüssel) eine codierte Information (Identifikationssignal) ausgesandt und von einem Empfänger der Übertragungseinrichtung empfangen wird, wobei ein Steuergerät das empfangene Identifikationssignal mit einer vorgegebenen codierten Information vergleicht und bei Übereinstimmung ein Ansteuersignal an die Sicherheitseinrichtung abgibt, dadurch gekennzeichnet, daß in der tragbaren Sendeeinheit (1) zur Verhinderung der Aussendung eines Identifikationssignales (14) bei Auftreten eines Anregungssignales (13) ein Schalter (16) zur Unterbrechung der Energieversorgung (UB) der Sendeeinheit (1) angeordnet ist.Device for enabling and / or activating / deactivating a security device, in particular an access device for a motor vehicle, in which, after receiving an excitation signal sent by a transmitter of a transmission device, a coded information (identification signal) is transmitted by a portable transmitter unit (radio key) and is sent by a receiver to the Transmission device is received, a control device comparing the received identification signal with a predetermined coded information and, if they match, emits a control signal to the security device, characterized in that in the portable transmitter unit (1) to prevent the transmission of an identification signal (14) when an excitation signal occurs (13) a switch (16) for interrupting the power supply (U B ) of the transmitter unit (1) is arranged.
    EP99116960A 1998-09-02 1999-08-27 Electronic key Withdrawn EP0984124A3 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE19839945 1998-09-02
    DE19839945 1998-09-02
    DE19937915A DE19937915A1 (en) 1998-09-02 1999-08-11 Electronic key for remotely unlocking a motor vehicle has a power supply that can be interrupted to prevent transmission of an identification signal
    DE19937915 1999-08-11

    Publications (2)

    Publication Number Publication Date
    EP0984124A2 true EP0984124A2 (en) 2000-03-08
    EP0984124A3 EP0984124A3 (en) 2000-10-04

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99116960A Withdrawn EP0984124A3 (en) 1998-09-02 1999-08-27 Electronic key

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    EP1367200A1 (en) * 2002-05-31 2003-12-03 Fuji Jukogyo Kabushiki Kaisha Key-less entry system for vehicle
    WO2004114227A1 (en) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Method and arrangements for increasing the security of transponder systems, particularly for access to automobiles
    EP2014523A1 (en) * 2007-07-11 2009-01-14 OMRON Corporation, a corporation of Japan Control system and method, fixed radio communication device and method, and portable radio communication device and method
    DE102008023854A1 (en) * 2008-05-16 2009-08-20 Continental Automotive Gmbh Device for sound generation, comprises sound source and housing for sound source, where housing has sound outlet, which is covered with flexible element, and flexible element is not permeable for fluid media
    DE102011088917A1 (en) * 2011-12-16 2013-06-20 Continental Automotive Gmbh Access arrangement for use with keyless electronic access authorization system of vehicle i.e. motor car, has movement sensor outputting triggering signal to control transceiver to emit another signal based on detection of generator motion
    EP2612795A1 (en) * 2012-01-06 2013-07-10 Nxp B.V. Wireless communications circuit
    CN103875025A (en) * 2011-10-14 2014-06-18 奥迪股份公司 Method for operating an authorization device for a keyless access to and start of a vehicle
    EP2799293A1 (en) * 2013-05-01 2014-11-05 Delphi Technologies, Inc. Passive entry and passive start system with operator walking detection
    WO2018145876A1 (en) * 2017-02-09 2018-08-16 Bayerische Motoren Werke Aktiengesellschaft Method for operating a radio remote control, radio remote control, device, computer program, and computer program product
    FR3063947A1 (en) * 2017-03-20 2018-09-21 Continental Automotive France METHOD FOR SECURE ACCESS TO A MOTOR VEHICLE
    WO2020104086A1 (en) * 2018-11-22 2020-05-28 Continental Automotive Gmbh Access device for a vehicle
    EP3819877A2 (en) 2019-10-16 2021-05-12 Mark Churchward A switching assembly and use thereof in a handheld wireless device for remotely activating a remote controlled system
    GB202107051D0 (en) 2021-05-18 2021-06-30 Churchward Mark An improved retrofit switching assembly

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    Cited By (23)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US7005959B2 (en) 2002-05-31 2006-02-28 Fuji Jukogyo Kabushiki Kaisha Key-less entry system for vehicle
    EP1367200A1 (en) * 2002-05-31 2003-12-03 Fuji Jukogyo Kabushiki Kaisha Key-less entry system for vehicle
    WO2004114227A1 (en) 2003-06-25 2004-12-29 Philips Intellectual Property & Standards Gmbh Method and arrangements for increasing the security of transponder systems, particularly for access to automobiles
    CN1813271B (en) * 2003-06-25 2010-12-01 Nxp股份有限公司 Method and arrangements for increasing the security of transponder systems, particularly for access to automobiles
    EP2014523A1 (en) * 2007-07-11 2009-01-14 OMRON Corporation, a corporation of Japan Control system and method, fixed radio communication device and method, and portable radio communication device and method
    DE102008023854A1 (en) * 2008-05-16 2009-08-20 Continental Automotive Gmbh Device for sound generation, comprises sound source and housing for sound source, where housing has sound outlet, which is covered with flexible element, and flexible element is not permeable for fluid media
    CN103875025A (en) * 2011-10-14 2014-06-18 奥迪股份公司 Method for operating an authorization device for a keyless access to and start of a vehicle
    CN103875025B (en) * 2011-10-14 2016-02-10 奥迪股份公司 For running the method for authorization device for entering and start vehicle without key
    DE102011088917A1 (en) * 2011-12-16 2013-06-20 Continental Automotive Gmbh Access arrangement for use with keyless electronic access authorization system of vehicle i.e. motor car, has movement sensor outputting triggering signal to control transceiver to emit another signal based on detection of generator motion
    DE102011088917B4 (en) * 2011-12-16 2013-12-24 Continental Automotive Gmbh Access arrangement in the method for operating such an access arrangement
    US9082241B2 (en) 2012-01-06 2015-07-14 Nxp B.V. Wireless communications circuit
    EP2612795A1 (en) * 2012-01-06 2013-07-10 Nxp B.V. Wireless communications circuit
    EP2799293A1 (en) * 2013-05-01 2014-11-05 Delphi Technologies, Inc. Passive entry and passive start system with operator walking detection
    US8965599B2 (en) 2013-05-01 2015-02-24 Delphi Technologies, Inc. Passive entry and passive start system with operator walking detection
    WO2018145876A1 (en) * 2017-02-09 2018-08-16 Bayerische Motoren Werke Aktiengesellschaft Method for operating a radio remote control, radio remote control, device, computer program, and computer program product
    FR3063947A1 (en) * 2017-03-20 2018-09-21 Continental Automotive France METHOD FOR SECURE ACCESS TO A MOTOR VEHICLE
    WO2018172663A1 (en) * 2017-03-20 2018-09-27 Continental Automotive France Method for secure access to a motor vehicle
    US10762730B2 (en) 2017-03-20 2020-09-01 Continental Automotive France Method for secure access to a motor vehicle
    WO2020104086A1 (en) * 2018-11-22 2020-05-28 Continental Automotive Gmbh Access device for a vehicle
    US11679737B2 (en) 2018-11-22 2023-06-20 Continental Automotive Gmbh Access device for a vehicle
    EP3819877A2 (en) 2019-10-16 2021-05-12 Mark Churchward A switching assembly and use thereof in a handheld wireless device for remotely activating a remote controlled system
    GB202107051D0 (en) 2021-05-18 2021-06-30 Churchward Mark An improved retrofit switching assembly
    GB2606726A (en) 2021-05-18 2022-11-23 Churchward Mark An improved retrofit switching assembly

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    BR9903988A (en) 2000-09-05

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