EP0711892B1 - Verfahren zum Synchronisieren zweier dialogfähiger Sender-Empfängereinheiten auf ein Codesignal in einer Kfz-Schliessanlage - Google Patents
Verfahren zum Synchronisieren zweier dialogfähiger Sender-Empfängereinheiten auf ein Codesignal in einer Kfz-Schliessanlage Download PDFInfo
- Publication number
- EP0711892B1 EP0711892B1 EP95115487A EP95115487A EP0711892B1 EP 0711892 B1 EP0711892 B1 EP 0711892B1 EP 95115487 A EP95115487 A EP 95115487A EP 95115487 A EP95115487 A EP 95115487A EP 0711892 B1 EP0711892 B1 EP 0711892B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- units
- locking system
- key
- motor vehicle
- code signal
- 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
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
-
- 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
- G07C2209/06—Involving synchronization or resynchronization between transmitter and receiver; reordering of codes
Definitions
- the invention relates to a method according to the
- the code signal of the So-called remote-controlled locking system can be radio, infrared or the like are transmitted.
- the problem of synchronizing the two transceiver units arises in the manufacture of the motor vehicle, each time the battery is changed, but also in the event of on-board electrical system malfunctions.
- One unit is arranged in the motor vehicle, while the other is connected to the portable mechanical or electronic key or integrated with it.
- the problem also arises when, as is customary, an alternating code is used, ie a constantly changing code signal.
- an alternating code is used, ie a constantly changing code signal.
- EP-A-0 215 291 describes a method for synchronizing a mobile and a transceiver unit provided in a motor vehicle a remote-controlled motor vehicle locking system known.
- the locking system When the locking system is operated, they exchange a code signal. After identifying the mobile transceiver unit as belonging the two transceiver units become the locking system after Switching on the ignition synchronized.
- the synchronization between the mobile transmitter-receiver unit and the locking system can be in done electromagnetic by radio or sound.
- the invention has for its object a method of the beginning to create a higher level of security against manipulation enabled during synchronization.
- This vote should be possible already during the manufacture of the motor vehicle or the initial installation of the Locking system, but also at any time in the event of an interruption of the Electrical system, in the event of a malfunction and the like. It should be possible if there is any asynchronicity, the two units in again Bring agreement. It should also be possible to have several transportable units and a fixed unit together synchronize.
- the method known in this context, the to synchronize the two transportable units with one another (DE 32 37 622 A1) mostly fails because the two units are separated are kept from each other or their users are different Times use the locking system.
- the invention is in a possibly nonexistent Synchronization of the two units a synchronization carried out when the locking system identified an associated key. With a mechanical Key this can be the case if the plant is properly unlocked. At a Electronic key can do this with the help of the preparatory Signal dialogs take place, as for example in the unpublished German patent application P 44 11 435.4 is described. Because of the nonexistent It is not possible to be synchronous Locking system using the code signal, i.e. by means of Remote control. The system can, however a mechanical key can be opened. The Loss of ease of use is offset by the security resulting from the synchronicity then made to any, not necessarily a relevant code signal following an education law results. This code signal cannot be transmitted through the Unauthorized be predetermined.
- the synchronization can be two-stage be made. For example, when pressed the locking system with a mechanical key a synchronization standby signal are generated, which at Actuation of the ignition lock again with the same mechanical Key connects the actual synchronization. It is also possible, preferably using a synchronization electronic key in one step. It can with the Actuation of the locking system or only when the ignition lock is actuated synchronization with the key. The latter offers the Possibility of anew each time the motor vehicle is operated Perform synchronization regardless of whether the two units are already synchronized with each other. In this case it is relevant code signal after each synchronization compared to the previous one relevant code signal changed.
- the motor vehicle Immobilizer with inductive coupling to the vehicle key ignition switched on.
- This inductive connection Transfer coding data for remote control.
- the prerequisite for this is the Identification of the key as belonging.
- the identification takes place with the help a dialogue between the locking system and the key.
- the dialogue takes place wirelessly, for example with the help of an inductive coupling is effective when the key is inserted in the ignition lock
- the key has a memory and a send and Receiving device with a corresponding device of Locking system communicates.
- It can also be a multi-level dialogue take place, i.e. to a first question of the locking system on the key If the key is answered correctly, a second question follows Lock system after a second answer. Only when both answers the locking system is unlocked.
- connection of a mechanical with an electronic key offers additional theft protection. Is it an unauthorized one User managed to copy the mechanical key, it is through the (correct) answers of the electronic that are then not available Key prevented from starting the motor vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Description
Claims (2)
- Verfahren zum Synchronisieren einer mobilen und einer in einem Kraftfahrzeug vorgesehenen Sender-Empfängereinheit einer fembedienbaren Kraftfahrzeug-Schließanlage, die beim Betätigen der Schließanlage ein Codesignal austauschen, und die beiden Sender-Empfängereinheiten nach dem Identifizieren der mobilen Sender-Empfängereinheit als zugehörig zur Schließanlage nach dem Einschalten der Zündung synchronisiert werden, die Synchronisierung zwischen der mobilen Sender-Empfängereinheit und der Schließanlage mittels einer induktiven Kopplung erfolgt, die von einer elektronischen Wegfahrsperre bereitgestellt wird, die Kopplung dann wirksam ist, wenn der Zündschlüssel in das Zündschloss eingesteckt ist, dadurch gekennzeichnet, dass die Synchronisation der beiden Einheiten auf unterschiedlichen Codesignalen für das Schließen und Öffnen der Schließanlage vorgenommen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die mobile Sender-Empfängereinheit mit einem mechanischen Schlüssel versehen ist, der mechanische Schlüssel in ein mechanisches Zündschloss eingesteckt wird und die beiden Einheiten nur dann über die induktive Kopplung synchronisiert werden, wenn Schlüssel und Zündschloss mechanisch zueinander passen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4440349 | 1994-11-11 | ||
DE4440349A DE4440349A1 (de) | 1994-11-11 | 1994-11-11 | Verfahren zum Synchronisieren zweier dialogfähiger Sender-Empfängereinheiten für ein Codesignal in einer Kraftfahrzeug-Schließanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0711892A1 EP0711892A1 (de) | 1996-05-15 |
EP0711892B1 true EP0711892B1 (de) | 2004-11-24 |
Family
ID=6533087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95115487A Expired - Lifetime EP0711892B1 (de) | 1994-11-11 | 1995-09-29 | Verfahren zum Synchronisieren zweier dialogfähiger Sender-Empfängereinheiten auf ein Codesignal in einer Kfz-Schliessanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0711892B1 (de) |
DE (2) | DE4440349A1 (de) |
ES (1) | ES2227534T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2774120B1 (fr) * | 1998-01-29 | 2000-04-07 | Siemens Automotive Sa | Systeme de verrouillage pour vehicule automobile a code evolutif et identification |
FR2774121B1 (fr) * | 1998-01-29 | 2000-04-07 | Siemens Automotive Sa | Systeme de verrouillage pour vehicule automobile a code evolutif et identification |
ES2183738B1 (es) * | 2001-08-03 | 2004-01-01 | Talleres Escoriaza Sa | Protocolo de comunicaciones asincronas para llaves electronicas de cerraduras y sistemas de seguridad. |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234539A1 (de) * | 1982-09-17 | 1984-03-22 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur code-sicherung bei einem elektronischen schluessel |
DE3237622A1 (de) | 1982-10-11 | 1984-04-12 | Bayerische Motoren Werke AG, 8000 München | Sicherheitseinrichtung |
DE3313098C1 (de) * | 1983-04-12 | 1984-10-11 | Daimler-Benz Ag, 7000 Stuttgart | Elektronisches Schloßsystem |
DE3529882A1 (de) * | 1985-08-21 | 1987-02-26 | Vdo Schindling | System zum ver- und / oder entriegeln einer sicherheitseinrichtung |
EP0215291B1 (de) * | 1985-09-10 | 1991-02-27 | Hülsbeck & Fürst GmbH. & Co. KG | Elektronische Schliesseinrichtung für Kraftfahrzeuge |
DE3536378A1 (de) * | 1985-10-11 | 1987-04-16 | Bayerische Motoren Werke Ag | Sicherheitseinrichtung fuer ein kraftfahrzeug |
DE3636822C2 (de) * | 1986-10-29 | 1993-12-23 | Ruf Kg Wilhelm | Elektronische Fernbetätigungseinrichtung, insbesondere für Zentralverriegelungsanlagen von Kraftfahrzeugen |
GB2198779B (en) * | 1986-12-06 | 1990-07-04 | Kokusan Kinzoku Kogyo Kk | Vehicle anti-theft arrangement |
JP2546842B2 (ja) * | 1987-06-16 | 1996-10-23 | 日産自動車株式会社 | 車両用施解錠制御装置 |
DE3905651A1 (de) * | 1989-02-24 | 1990-08-30 | Daimler Benz Ag | Verfahren zur sicherung von codeworten eines fernwirksystems und fernwirksystem mit durch codeworte uebertragbarem code |
DE4025229A1 (de) * | 1990-08-09 | 1992-02-20 | Uwe Heyer | Codiersystem |
EP0574473B1 (de) * | 1991-03-07 | 1996-08-14 | Siemens Aktiengesellschaft | Optisch oder durch funk fernsteuerbares kfz-schliesssystem |
DE4236862A1 (de) * | 1992-01-22 | 1994-05-05 | Vdo Schindling | Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts |
DE4236863A1 (de) * | 1992-01-22 | 1994-05-05 | Vdo Schindling | Verfahren zur Eingabe von Kenndaten in den Mikroprozessor eines Kraftfahrzeugschlüssels |
GB2265412A (en) * | 1992-03-27 | 1993-09-29 | Ian Francis Deviny | Electronic key and lock |
DE4242231C3 (de) * | 1992-12-15 | 1997-01-16 | Diehl Gmbh & Co | Fernsteuereinrichtung |
DE4302550C2 (de) * | 1993-01-29 | 1997-02-20 | Siemens Ag | Fahrzeug-Schließsystem |
DE4308899C1 (de) * | 1993-03-19 | 1994-02-03 | Siemens Ag | Verfahren zum Betrieb eines in einem Dialogverfahren fernsteuerbaren Schließsystemes, z.B. eines Kfz |
DE4317117C1 (de) * | 1993-05-21 | 1994-07-21 | Audi Ag | Fernbedienbare Schließanlage an einem Kraftfahrzeug |
-
1994
- 1994-11-11 DE DE4440349A patent/DE4440349A1/de not_active Ceased
-
1995
- 1995-09-29 DE DE59510972T patent/DE59510972D1/de not_active Expired - Lifetime
- 1995-09-29 ES ES95115487T patent/ES2227534T3/es not_active Expired - Lifetime
- 1995-09-29 EP EP95115487A patent/EP0711892B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0711892A1 (de) | 1996-05-15 |
DE59510972D1 (de) | 2004-12-30 |
ES2227534T3 (es) | 2005-04-01 |
DE4440349A1 (de) | 1996-05-15 |
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