EP0596401B1 - Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts - Google Patents
Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts Download PDFInfo
- Publication number
- EP0596401B1 EP0596401B1 EP93117446A EP93117446A EP0596401B1 EP 0596401 B1 EP0596401 B1 EP 0596401B1 EP 93117446 A EP93117446 A EP 93117446A EP 93117446 A EP93117446 A EP 93117446A EP 0596401 B1 EP0596401 B1 EP 0596401B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- procedure according
- controller
- application
- data
- 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
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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
- 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
- G07C2009/0042—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 the transmitted data signal containing a code which is changed
- G07C2009/00476—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 the transmitted data signal containing a code which is changed dynamically
- G07C2009/00492—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 the transmitted data signal containing a code which is changed dynamically whereby the code is a rolling code
-
- 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
- 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
- G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
- G07C2009/00825—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed remotely by lines or wireless communication
-
- 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 for individualization and synchronization a control unit for central locking and anti-theft device one Motor vehicle, for receiving wirelessly transmitted, encrypted function commands is equipped with a receiver and also a microprocessor, a memory, a non-volatile memory, a pseudo-random generator, contains a counter and a control command output.
- the new coding is generated in the receiver and wirelessly transmitted to the transmitter and stored in it.
- the transmitter and the receiver are switched on before initialized when the central locking system is operated for the first time.
- the method according to the invention differs from that Method according to patent application DE 42 01 568 in that the key data for individualization and synchronization of the control unit wirelessly by means of the one containing the characteristic data Motor vehicle key takes place, the characteristic data remain hidden from operating and service personnel and any manipulation excluded even by "insiders" become. In addition, additional hardware and software-related effort to initialize the control units in the manufacturing process.
- Fig. 1 shows schematically a key 1 and a control unit 2.
- the key 1 contains a transmitter, a microprocessor, a pseudo-random generator, a program memory, a non-volatile memory, a battery and an actuator. Also in the key all required characteristics are saved.
- Control unit 2 for central locking and theft protection is arranged in the motor vehicle and contains a receiver, a microprocessor, a memory, a non-volatile memory, a pseudo-random generator, a counter and a control command output.
- the pseudo-random generators in the key and control unit can be either circuit-wise or software-wise will be realized.
- a primary synchronization using a serial interface initiated. This will make the Microprocessor of the control unit 2 for recording and storage of the sensitized data.
- the initialization command also tells control unit 2 which one Data storage space is to be occupied (key number). Then the required number of telegrams for wireless transmission of the entire characteristic data set be sent. It can be provided in the program that the complete identification data record is sent at least twice must be done and that a data comparison is made internally becomes. The data are only stored in memory if they match filed.
- Control commands lost be it that the Transmission power of the transmitter is not sufficient, be it that the key is outside the reception area of the Receiver is operated, then a secondary synchronization become necessary. All that is required is new change code data be transmitted.
- the secondary synchronization is through a special initialization procedure or initiated a special data telegram and can then by a special operation of the key or by controlling the control unit independently of the key be initiated. You can do this by contacting Door lock or a specific position of the ignition key to use.
- the data storage space to be used now results from the fixed code portion that the key 3 sends in the data telegram.
- the control unit 2 now expects a number of data messages, which he evaluates.
- the characteristic data that the control unit 2 now with the next Data telegrams are received with the determined change code and already known fixed code compared.
Description
- Fig. 1
- Blockschaltbild zur Durchführung des erfindungsgemäßen Verfahrens
- Fig. 2
- Primärsynchronisation
- Fig. 3
- Sekundärsynchronisation
Claims (11)
- Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts (2) für die Zentralverriegelung und Diebstahlsicherung eines Kraftfahrzeugs, das zum Empfang von drahtlos übertragenen, verschlüsselten Funktionsbefehlen mit einem Empfänger ausgerüstet ist, außerdem einen Mikroprozessor, einen Speicher, einen nichtflüchtigen Speicher, einen Pseudo-Zufallsgenerator, ein Zählwerk, eine Steuerbefehl-Ausgabe sowie einen die erforderlichen Kenndaten enthaltenden, für den ständigen Gebrauch durch den späteren Fahrzeugnutzer bestimmten Kraftfahrzeugschlüssel (1) aufweist, der außer einem Sender, einen Mikroprozessor, einen Pseudo-Zufallsgenerator, einen Programmspeicher, einen nichtflüchtigen Speicher, eine Batterie und eine Betätigungseinrichtung aufweist, dadurch gekennzeichnet, daß am Ende des Fertigungsprozesses des Steuergerätes (2) dessen Individualisierung und Synchronisierung drahtlos mittels des Kraftfahrzeugschlüssels (1) erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein Kenndatensatz vom Schlüssel (1) auf mehrere Telegramme verteilt ausgesendet wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Kenndatensatz zur Individualisierung und ersten Synchronisierung einen Festcode- und einen Wechselcode-Anteil sowie Steuerbefehle enthält.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die ankommenden Kenndaten vom Mikroprozessor des Steuergeräts (2) geprüft und bei positivem Ergebnis im nichtflüchtigen Speicher abgelegt werden.
- Anwendung des Verfahrens nach einem der Ansprüche 1 bis 4 auf die Individualisierung und Synchronisierung eines Steuergeräts (2) für mehr als einen Schlüssel (1).
- Anwendung des Verfahrens nach Anspruch 5, dadurch gekennzeichnet, daß die Kenndaten für die verschiedenen Schlüssel (1) nacheinander übermittelt und im nichtflüchtigen Speicher des Steuergeräts (2) getrennt abgelegt werden.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Festcode- und Wechselcode-Anteile der Kenndatensätze im nichtflüchtigen Speicher des Steuergerätes (2) getrennt abgelegt werden.
- Anwendung des Verfahrens nach Anspruch 1 mit der Maßgabe, daß bei einer erforderlichen Sekundärsynchronisation des Steuergeräts (2) nur neue Wechselcodedaten übertragen werden.
- Anwendung des Verfahrens nach Anspruch 8, dadurch gekennzeichnet, daß die Übertragung der Wechselcodedaten durch eine besondere Betätigung des Schlüssels (1) eingeleitet wird.
- Anwendung des Verfahrens nach Anspruch 8, dadurch gekennzeichnet, daß die Übertragung der Wechselcodedaten durch eine vom Schlüssel (1) unabhängige Ansteuerung des Steuergeräts (2) eingeleitet wird.
- Anwendung des Verfahrens nach Anspruch 10, dadurch gekennzeichnet, daß die Ansteuerung über einen Kontakt im Türschloß oder eine bestimmte Stellung des Zündschlüssels eingeleitet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19924236862 DE4236862A1 (de) | 1992-01-22 | 1992-10-31 | Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts |
DE4236862 | 1992-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0596401A1 EP0596401A1 (de) | 1994-05-11 |
EP0596401B1 true EP0596401B1 (de) | 1999-01-27 |
Family
ID=6471841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93117446A Expired - Lifetime EP0596401B1 (de) | 1992-10-31 | 1993-10-28 | Verfahren zur Individualisierung und Synchronisierung eines Steuergeräts |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0596401B1 (de) |
DE (1) | DE59309341D1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407966A1 (de) * | 1994-03-10 | 1995-09-14 | Valeo Borg Instr Verw Gmbh | Elektronisches Code-Schloß, insbesondere zum Deaktivieren einer Kraftfahrzeug-Wegfahrsperre |
FR2719924B1 (fr) * | 1994-05-11 | 1996-08-14 | Peugeot | Procédé de déverrouillage de l'accès d'un outil de téléchargement d'un fichier, à un calculateur. |
DE4441415C2 (de) * | 1994-11-22 | 2003-06-18 | Audi Ag | Verfahren für die Handhabung von Ersatzschlüsseln |
DE19507043B4 (de) * | 1995-03-01 | 2006-11-23 | Deutsche Telekom Ag | Verfahren zur Erzeugung und Verteilung unpersonalisierter vertraulicher elektronischer Schlüssel |
FR2747817B1 (fr) * | 1996-04-22 | 1998-07-24 | Peugeot | Systeme de programmation d'au moins un calculateur d'un systeme electronique embarque a bord d'un vehicule automobile |
DE102008020560A1 (de) | 2008-04-24 | 2009-10-29 | Volkswagen Ag | Verfahren zur Erweiterung von Software für ein Steuergerät eines Fahrzeugs und entsprechend ausgestaltete Datenlesevorrichtung sowie Schlüssel und Fahrzeug |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3529882A1 (de) * | 1985-08-21 | 1987-02-26 | Vdo Schindling | System zum ver- und / oder entriegeln einer sicherheitseinrichtung |
IT1227401B (it) * | 1988-12-06 | 1991-04-08 | Delta Elettronica Spa | Dispositivi per la trasmissione a distanza di comandi in sicurezza |
WO1991015645A1 (de) * | 1990-04-06 | 1991-10-17 | Siemens Aktiengesellschaft | Verfahren zum betrieb einer fernbedienbaren zentralverriegelung eines fahrzeuges |
DE59206921D1 (de) * | 1991-03-07 | 1996-09-19 | Siemens Ag | Optisch oder durch funk fernsteuerbares kfz-schliesssystem |
-
1993
- 1993-10-28 EP EP93117446A patent/EP0596401B1/de not_active Expired - Lifetime
- 1993-10-28 DE DE59309341T patent/DE59309341D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0596401A1 (de) | 1994-05-11 |
DE59309341D1 (de) | 1999-03-11 |
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