WO2001025571A1 - Commande de mise en sequence pour systeme d'acces a un vehicule - Google Patents

Commande de mise en sequence pour systeme d'acces a un vehicule Download PDF

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Publication number
WO2001025571A1
WO2001025571A1 PCT/US2000/027099 US0027099W WO0125571A1 WO 2001025571 A1 WO2001025571 A1 WO 2001025571A1 US 0027099 W US0027099 W US 0027099W WO 0125571 A1 WO0125571 A1 WO 0125571A1
Authority
WO
WIPO (PCT)
Prior art keywords
signaling device
signal
response
controller
vehicle
Prior art date
Application number
PCT/US2000/027099
Other languages
English (en)
Inventor
David T. Proefke
Thomas E. Utter
Robert C. Baillargeon
Thomas W. Pfeffer
Jeffrey R. Coil
Andrew C. Brenz
Kenneth P. Orlando
Tejas B. Desai
Christian O. Johnson
Ronald J. Plichta
Original Assignee
Siemens Automotive Corporation
General Motors Corporation
Huf North America
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 Siemens Automotive Corporation, General Motors Corporation, Huf North America filed Critical Siemens Automotive Corporation
Publication of WO2001025571A1 publication Critical patent/WO2001025571A1/fr

Links

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

Definitions

  • step (B) includes the substep of including a coded message in the signal and wherein step (F) includes determining a response signal based upon the coded message in the received signal.
  • the method of claim 5, including receiving the signal of step (B) a third time at the signaling device within a period of time from receiving the signal of step (B) the second time; determining a third response time based upon another piece of data from within the signaling device; and re-transmitting the response signal from the signaling device at the third response time.
  • step (E) includes using a sequence location number as at least part of the sequence identifier information.
  • a vehicle access system comprising: a controller supported on the vehicle that determines when a vehicle user desires an action by the system and generates an initiation signal that includes a vehicle identifier and a sequence identifier; and a remote passive signaling device that receives the signal from the controller, determines whether the vehicle identifier matches a vehicle identifier stored at the signaling device and responsively generates a response signal at a response time based upon the sequence identifier.
  • controller receives the response signal and causes the desired action to be taken.
  • the controller determines whether a period of time has elapsed from when the signal was generated and retransmits the initiation signal if no response signal from the signaling device has been received by the controller within the period of time and wherein the signaling device receives the retransmitted signal and responsively generates the response signal at a second response time based upon a piece of data from the signaling device.
  • the controller determines whether a period of time has elapsed from when the initiation signal was retransmitted and transmits the initiation signal a third time if no response signal from the signaling device has been received by the controller within the period of time and wherein the signaling device receives the initiation signal transmitted for the third time and responsively generates the response signal at a third response time based upon another piece of data from the signaling device.
  • the signaling device receives the initiation signal from the controller a second time within a period of time and wherein the signaling device responsively generates the response signal at a second response time based upon a piece of data from the signaling device.
  • the signaling device receives the initiation signal from the controller a third time within a period of time and wherein the signaling device responsively generates the response signal at a third response time based upon another piece of data from the signaling device.
  • a system for controlling access to a vehicle comprising: a controller supported on the vehicle that generates an initiation signal responsive to determining that a vehicle user desires access to the vehicle; and a remote passive signaling device that generates a response signal at a first response time responsive to the initiation signal and generates the response signal at a second response time if the controller does not successfully receive the first response signal.
  • This invention generally relates to vehicle access systems. More particularly, this invention relates to a strategy for controlling a vehicle access system having multiple passive remote signal devices.
  • Keyless vehicle entry systems are well known. Many such systems include a key fob that allows a vehicle owner to remotely unlock the vehicle doors, turn a vehicle ignition on or to activate or deactivate a vehicle alarm system by activating switches on the key fob.
  • Other systems include passive remote signaling devices that provide a signal to a system controller supported on the vehicle without requiring the user to manually activate any switches.
  • passive devices, or electronic keys have been proposed as part of a system that allows vehicle ignition control without inserting a key into a mechanical lock.
  • One particular challenge presented by systems including a passive remote signaling device occurs when there are multiple keys for a single vehicle. It is useful, for example, to provide all family members with their own passive device to operate the vehicle as needed.
  • This invention provides a sequencing strategy to control the transmission of signals from passive signaling devices to the system controller to avoid signal jamming at the controller.
  • this invention is a system for controlling access to a vehicle that includes a sequencing strategy for controlling signal transmission from passive remote signaling devices to ensure proper receipt of such signals at the controller on the vehicle.
  • a system designed according to this invention includes a controller supported on the vehicle that generates an initiation signal responsive to determining that a vehicle user desires access to the vehicle.
  • a remote passive signaling device generates a response signal at a first response time responsive to the initiation signal and generates the response signal at a second response time if the first response signal is not successfully received by the controller.
  • the passive device includes the ability to determine the proper first and second response times. Using different response times before transmitting the response signal is useful to prevent multiple signals jamming the receiver of the controller on a vehicle.
  • FIG. 1 diagrammatically illustrates a system designed according to this invention.
  • Figure 2 is a flow chart diagram illustrating a method of this invention.
  • a vehicle access system 20 includes a remote passive signaling device 22 that communicates with a controller 24 supported on the vehicle.
  • a passive signaling device provides signals without requiring any manual activation by the user. Such devices are sometimes referred to as "smart cards" or "electronic keys.”
  • a second remote passive signaling device 26 also communicates with the controller 24.
  • the illustrated examples of remote signaling devices 22 and 26 show different embodiments of such a component.
  • the signaling device 22 is a card that can be conveniently carried about by an individual.
  • the signaling device 26 is supported on a key body. All communication between the signaling devices 22 and 26 and the controller
  • the controller emits electromagnetic signals that are received by the signaling devices 22 and 26.
  • Signaling devices 22 and 26 provide response signals to the controller 24 that are electromagnetic in one example. Radio frequency signals preferably are used.
  • the controller 24 preferably controls the operation of various devices on the vehicle. Examples include an ignition kill switch 28, door locks 30 and an engine controller 32. In this example, the controller 24 is responsible for vehicle security features. Additional features can be controlled by the controller 24 and are within the scope of this invention including, for example, a trunk lock.
  • the controller 24 and the signaling devices 22 and 26 preferably are programmed to accommodate situations where signals from both signaling devices 22 and 26 can possibly interfere with each other and cause signal jamming at the controller 24.
  • the controller 24 determines that the user desires the door lock 30 to be opened. The controller 24 then emits an initiation signal. If one or both of the remote signaling devices are within a selected range, the initiation signal from the controller 24 is received at the remote signaling device.
  • the initiation signal preferably includes a vehicle identifier and a sequence identifier.
  • the remote signaling device preferably is programmed to utilize the vehicle identifier to verify that the signal received at the remote signaling device is from the correct vehicle. If the vehicle identifier matches a vehicle identifier stored in memory on the remote signaling device, the next step is to determine a response time at which to send a response signal to the controller 24.
  • the remote signaling device preferably is programmed to utilize the sequence identifier information in the initiation signal to determine a response time.
  • the response time provides a slight delay between receiving the initiation signal and transmitting a response signal from the remote signaling device. If a response signal is successfully received by the controller 24, then the appropriate action, such as opening the door locks 30, is completed.
  • both remote signaling devices 22 and 26 will send a response signal at the same time, since they each use the same sequence identifier to determine the appropriate response time. In some such situations, it is not possible for the controller 24 to properly receive the response signal when more than one response signal is present. Whenever the first response signal is not properly received, the controller 24 again transmits an initiation signal. Upon receiving a second initiation signal within a selected time period, the remote signaling device 22 and/or 26 determines a second response time that preferably is based upon a varying piece of data from the remote signaling device. In one example, the synchronization counter within the remote signaling device provides the varying piece of data from which the second response delay time is determined.
  • a third response signal is provided.
  • a third time or delay period preferably is used before the response signal is provided a third time.
  • the third response time preferably is determined based some internal piece of data from the remote signaling device.
  • the data used for the third response time may be a constant or a variable.
  • the initiation signal from the controller 24 also contains coded information.
  • the coded information may be used to determined the content of the response signal expected from the remote signaling device.
  • the sequence identifier within the initiation signal provides information preferably based upon its sequence location number indicating when the remote signaling device should respond to the initiation signal. Additional coded information provides an indication to the remote signaling device what content is expected in the response signal.
  • the controller 24 continuously emits the initiation signal, which preferably is electromagnetic, until a response signal is received. In another example, the controller 24 generates an initiation signal and then waits a selected period before generating subsequent initiation signals until a successful response is received.
  • Figure 2 includes a flow chart 40 that illustrates the method of this invention.
  • a first sequence occurs at 42 where the controller 24 transmits the initiation signal.
  • the remote signaling device determines the appropriate response time and then transmits the response signal after the appropriate delay. If the response signal is successfully received then the intended function of the system is completed. If the response is not successfully received then a second sequence 44 occurs where the remote signaling device determines a second response time. The response signal is then transmitted after the appropriate delay from the second response time.
  • a third sequence 46 includes determining a third response time after which to send the response signal for a third time.
  • the third response time 46 is repeated until the response signal is successfully received.
  • the remote signaling devices are programmed to return back to determining the second response time and proceeding as illustrated in Figure 2 until the response signal is successfully received.
  • this invention provides an effective solution to avoid signal interference or jamming at the controller 24.

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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)

Abstract

L'invention concerne un système d'accès à un véhicule qui comprend un dispositif de signalisation passif sous forme de clef électronique. Le dispositif fournit un signal réponse à un contrôleur après un temps de réponse basé sur un identificateur de séquence à l'intérieur d'un signal d'initiation émis par le contrôleur. Si le signal réponse n'est pas reçu correctement, étant donné que plus d'un dispositif de signalisation éloigné transmet un signal réponse en même temps, le dispositif de signalisation éloigné détermine un deuxième temps de réponse après lequel le signal réponse peut être renvoyé. Le deuxième temps est déterminé, de préférence, en fonction d'une donnée interne variable provenant du dispositif de signalisation éloigné. Si cette deuxième transmission du signal réponse demeure infructueuse, une troisième transmission est effectuée après un troisième temps de réponse. Ce troisième temps de réponse est déterminé en fonction d'une autre donnée provenant du dispositif de signalisation éloigné.
PCT/US2000/027099 1999-10-04 2000-10-02 Commande de mise en sequence pour systeme d'acces a un vehicule WO2001025571A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15759799P 1999-10-04 1999-10-04
US60/157,597 1999-10-04

Publications (1)

Publication Number Publication Date
WO2001025571A1 true WO2001025571A1 (fr) 2001-04-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/027099 WO2001025571A1 (fr) 1999-10-04 2000-10-02 Commande de mise en sequence pour systeme d'acces a un vehicule

Country Status (1)

Country Link
WO (1) WO2001025571A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015216331A1 (de) * 2015-08-26 2017-03-02 Continental Automotive Gmbh Verfahren und Vorrichtungen zur Distanzbestimmung, insbesondere durch Laufzeit-basierte Entfernungs-Messung mit mehreren Geräten

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471345A (en) * 1982-03-05 1984-09-11 Sensormatic Electronics Corporation Randomized tag to portal communication system
WO1993025918A1 (fr) * 1992-06-17 1993-12-23 Saab-Scania Combitech Aktiebolag Systeme de transfert d'informations comprenant plusieurs transpondeurs
EP0787875A2 (fr) * 1996-02-02 1997-08-06 Trw Inc. Emetteur-récepteur portable à retard de phase pour un système d'entrée sans clé dans un véhicule
WO1998027441A1 (fr) * 1996-12-19 1998-06-25 Micron Communications, Inc. Procedes de traitement de communications sans fil et de traitement de communications a frequence radioelectrique, et systemes associes
EP0923054A2 (fr) * 1997-12-10 1999-06-16 F + G Megamos Sicherheitselektronik GMBH Procédé et dispositif pour vérifier le droit d'usage de dispositifs de contrÔle d'accès

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471345A (en) * 1982-03-05 1984-09-11 Sensormatic Electronics Corporation Randomized tag to portal communication system
WO1993025918A1 (fr) * 1992-06-17 1993-12-23 Saab-Scania Combitech Aktiebolag Systeme de transfert d'informations comprenant plusieurs transpondeurs
EP0787875A2 (fr) * 1996-02-02 1997-08-06 Trw Inc. Emetteur-récepteur portable à retard de phase pour un système d'entrée sans clé dans un véhicule
WO1998027441A1 (fr) * 1996-12-19 1998-06-25 Micron Communications, Inc. Procedes de traitement de communications sans fil et de traitement de communications a frequence radioelectrique, et systemes associes
EP0923054A2 (fr) * 1997-12-10 1999-06-16 F + G Megamos Sicherheitselektronik GMBH Procédé et dispositif pour vérifier le droit d'usage de dispositifs de contrÔle d'accès

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015216331A1 (de) * 2015-08-26 2017-03-02 Continental Automotive Gmbh Verfahren und Vorrichtungen zur Distanzbestimmung, insbesondere durch Laufzeit-basierte Entfernungs-Messung mit mehreren Geräten
DE102015216331B4 (de) * 2015-08-26 2017-09-07 Continental Automotive Gmbh Verfahren und Vorrichtungen zur Distanzbestimmung, insbesondere durch Laufzeit-basierte Entfernungs-Messung mit mehreren Geräten
US10313033B2 (en) 2015-08-26 2019-06-04 Continental Automotive Gmbh Key location system

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