DE4413922A1 - Vehicle propulsion drive control unit release method using release code signal - Google Patents

Vehicle propulsion drive control unit release method using release code signal

Info

Publication number
DE4413922A1
DE4413922A1 DE19944413922 DE4413922A DE4413922A1 DE 4413922 A1 DE4413922 A1 DE 4413922A1 DE 19944413922 DE19944413922 DE 19944413922 DE 4413922 A DE4413922 A DE 4413922A DE 4413922 A1 DE4413922 A1 DE 4413922A1
Authority
DE
Germany
Prior art keywords
code signal
control unit
release
drive control
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.)
Withdrawn
Application number
DE19944413922
Other languages
German (de)
Inventor
Andreas Haemmerl
Steffen Lutz
Christian Albert
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE19944413922 priority Critical patent/DE4413922A1/en
Publication of DE4413922A1 publication Critical patent/DE4413922A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Selective Calling Equipment (AREA)

Abstract

A procedure for releasing a vehicle propulsion control unit uses a comparison between a signal given by the user and an expected coded signal. The release signal is also given at regular intervals afterwards by the code comparator to the control unit. The release signal is generated without further input of the expected coded signal or without previous synchronisation of the control unit to the code comparator. The release signal is scanned by the control unit at a frequency that is higher than its pulse frequency.

Description

Die Erfindung bezieht sich auf ein Verfahren nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method according to the Preamble of claim 1.

Ein derartiges Verfahren ist aus der US-4 366 466 be­ kannt. Dabei wird das Antriebssteuergerät bei der Inbe­ triebnahme einmalig freigeschaltet. Dies ist insofern problematisch, als es bei dem Aufgeben des Freigabecode­ signals zu Störungen in der Übertragungsstrecke oder im gesamten Bordnetz kommen kann, die nicht auf den Versuch eines unberechtigten Benutzers zurückzuführen sind, das Kraftfahrzeug widerrechtlich in Gang zu bringen. Ursache für diese Störungen können beispielsweise externe elek­ tromagnetische Einstrahlungen ebenso sein wie Spannungs­ einbrüche, die während des Anlasserbetriebs aufgrund der hohen Stromaufnahme auftreten.Such a method is known from US 4,366,466 knows. The drive control unit at Inbe Drive activated once. This is so far problematic than when giving up the unlock code signals to interference in the transmission link or in entire on-board electrical system can come that is not on trial of an unauthorized user that To get motor vehicle illegally going. root cause For these faults, external elec tromagnetic radiation as well as voltage dips that occur during starter operation due to the high power consumption occur.

Verknüpft man die Inbetriebnahme des Antriebssteuergeräts mit der Bedingung eines vorher eingehenden "richtigen" Freigabecodesignals, so treten dann Probleme auf, wenn es aufgrund einer internen Betriebsstörung des Antriebssteuergeräts zu einer Situation kommt, die dem Zustand der Inbetriebnahme entspricht. Da ein derartiger "Reset" zu jeder Zeit auftreten kann, müssen dann beson­ dere Maßnahmen ergriffen werden, um ein Ausschalten des Antriebssteuergeräts zu verhindern.Link the commissioning of the drive control unit with the condition of a previously "correct" Release code signal, then problems arise when it due to an internal malfunction of the Drive control unit comes to a situation that the Corresponds to the state of commissioning. Because such "Reset" can occur at any time, then must be special measures are taken to switch off the Prevent drive control unit.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, das bei uneinge­ schränkter Wirksamkeit auch gegenüber Betriebsstörungen unempfindlich ist.The invention has for its object a method of the type mentioned at the beginning to create that at uneinge limited effectiveness also against breakdowns is insensitive.

Die Erfindung löst diese Aufgabe durch die kennzeichnen­ den Merkmale des Patentanspruchs 1.The invention solves this problem by characterizing the features of claim 1.

Durch die ständige Aufgabe des Codesignals kann die funk­ tionale Kopplung zwischen Empfang des "richtigen" Freiga­ becodesignals und der Inbetriebnahme des Antriebssteuer­ geräts entfallen. Es ist dann sogar möglich, für eine kurze Zeit das Antriebssteuergerät in Betrieb zunehmen, auch wenn das Freigabecodesignal nicht vorliegt. Es kann dann beispielsweise bis nach dem Anlassen einer Brenn­ kraftmaschine auf den Empfang des Freigabecodesignals ge­ wartet werden und das Antriebssteuergerät und damit das Antriebsaggregat kurze Zeit nach dem Anlassen wieder ab­ geschaltet werden, wenn dann immer noch nicht das Freiga­ becodesignal eingeht.Due to the constant abandonment of the code signal, the radio tional coupling between receipt of the "correct" release becodesignals and the commissioning of the drive control device is eliminated. It is then even possible for one put the drive control unit into operation for a short time, even if the release code signal is not present. It can then, for example, until after starting a burner engine on receipt of the release code signal ge are waiting and the drive control unit and thus that Drive unit shortly after starting again if the Freiga is still not switched becode signal is received.

Das Freigabecodesignal kann unterschiedlich ausgelöst werden. Eine Variante besteht darin, das erwartete Codesignal stets von Neuem abzufragen. Hierzu kann bei­ spielsweise ein Transponder dienen, der das Codesignal enthält und der im Dialog mit dem Codevergleicher steht.The release code signal can be triggered in different ways become. One variation is what is expected Always query the code signal again. This can be done at serve for example a transponder that the code signal contains and which is in dialogue with the code comparator.

Eine andere Variante besteht darin, ohne nochmalige Ein­ gabe des Codesignals nach einem erfolgreichen Vergleich des vom Benutzer eingegebenen oder von einem Sender kom­ menden Codesignals mit dem erwarteten Codesignal das Freigabecodesignal stets von Neuem an das Antriebssteuer­ gerät aufzugeben. Diese Wiederholung des Freigabecodesig­ nals hält dann bis zum Ablauf der jeweiligen Betriebsperiode des Antriebssteuergeräts an. Beide Varianten haben ihren Vorteil. Für die erste besteht er darin, daß die Berechtigung des Benutzers stets von Neuem überprüft und abgesichert wird. Im zweiten Fall kann der Speicher für das Codesignal dann bereits frühzeitig mit einem neuen Codesignal beschrieben werden, das dann für die nächste Betriebsperiode gültig ist.Another variant is without repeated one handing over the code signal after a successful comparison  of the user entered or coming from a transmitter menden code signal with the expected code signal Always release code signal to the drive control give up device. This repetition of the release code nals then stops until the end of each Operating period of the drive control unit. Both Variants have their advantage. It exists for the first in that the authorization of the user is always new checked and secured. In the second case, the Memory for the code signal is then available at an early stage a new code signal can be described, which is then for the next operating period is valid.

Ein ganz wesentlicher Vorteil ergibt sich dann, wenn das Freigabecodesignal ohne vorherige Synchronisation vom An­ triebssteuergerät und Codevergleicher erzeugt wird. Damit entfallen aufwendige und störanfällige Synchronisations­ maßnahmen.A very significant advantage arises when that Release code signal without prior synchronization from on drive control unit and code comparator is generated. In order to there is no need for time-consuming and fault-prone synchronization activities.

Dieser Vorteil läßt sich dann besonders einfach errei­ chen, wenn das Freigabecodesignal vom Antriebssteuergerät mit einer Frequenz abgetastet wird, die höher, vorzugs­ weise sogar wesentlich höher als die Pulsfrequenz des Freigabecodesignals ist. Jeder Puls des Freigabecodesig­ nals wird dann sicher erkannt und hinsichtlich seiner Länge bis auf die in der Abtastdauer begründete Ungenauigkeit, bestimmt.This advantage can then be achieved particularly easily if the release code signal from the drive control unit is sampled at a frequency that is higher, preferred even significantly higher than the pulse rate of the Release code signal is. Each pulse of the release code nals is then reliably recognized and regarding its Length up to the justified in the sampling period Inaccuracy, determined.

Claims (5)

1. Verfahren zum Freischalten eines Antriebssteuergeräts von Kraftfahrzeugen durch Aufgabe eines Freigabecode­ signals, das von einem Codevergleicher bei Überein­ stimmung eines vom Benutzer eingegebenen bzw. kommen­ den mit einem erwarteten Codesignal ausgegeben wird, dadurch gekennzeichnet, daß das Freigabecodesignal auch nach dem Freischalten in regelmäßigen Abständen vom Codevergleicher an das Antriebssteuergerät aufge­ geben wird.1. A method for unlocking a drive control unit of motor vehicles by abandoning a release code signal, which is provided by a code comparator if a user enters or comes out with an expected code signal, characterized in that the release code signal even after activation at regular intervals is given by the code comparator to the drive control unit. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Freigabecodesignal ohne nochmalige Eingabe des erwarteten Codesignals vom Codevergleicher er­ zeugt wird.2. The method according to claim 1, characterized in that that the release code signal without repeated input of the expected code signal from the code comparator is fathered. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Freigabecodesignal mit nochmaliger Eingabe des erwarteten Codesignals durch den Benutzer vom Co­ devergleicher erzeugt wird.3. The method according to claim 1, characterized in that the release code signal with repeated input of the expected code signal by the user from the Co comparator is generated. 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Freigabecodesignal ohne vor­ hergehende Synchronisation des Antriebssteuergeräts auf den Codevergleicher erzeugt wird. 4. The method according to any one of claims 1 to 3, characterized characterized in that the release code signal without before Synchronization of the drive control unit is generated on the code comparator.   5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß das Freigabecodesignal vom Antriebssteuergerät mit einer Frequenz abgetastet wird, die höher als die Pulsfrequenz des Freigabecodesignals ist.5. The method according to claim 4, characterized in that the release code signal from the drive control unit is sampled at a frequency higher than that Pulse frequency of the release code signal is.
DE19944413922 1994-04-21 1994-04-21 Vehicle propulsion drive control unit release method using release code signal Withdrawn DE4413922A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944413922 DE4413922A1 (en) 1994-04-21 1994-04-21 Vehicle propulsion drive control unit release method using release code signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944413922 DE4413922A1 (en) 1994-04-21 1994-04-21 Vehicle propulsion drive control unit release method using release code signal

Publications (1)

Publication Number Publication Date
DE4413922A1 true DE4413922A1 (en) 1995-10-26

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DE (1) DE4413922A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539011A1 (en) * 1994-10-19 1996-04-25 Honda Motor Co Ltd Vehicle anti-theft system
EP1188627A3 (en) * 2000-09-13 2004-03-03 Mazda Motor Corporation Anti-theft system for vehicle
US7154384B2 (en) 2003-01-21 2006-12-26 Nec Corporation Vehicle theft protection system, a method of protecting a vehicle from theft, a vehicle-onboard device, a management station, and a program for protecting a vehicle from theft

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1188029A1 (en) * 1983-09-30 1985-10-30 Masterov Petr V Automobile coded antijoy ride device
SU1544613A1 (en) * 1987-06-23 1990-02-23 Л Ф Николаев ( ь2) I; ми,-, } |5Ь) Патент Японии .V 60 к.. В 60 R 2S О 1985 Antitheft vehicle device
EP0377128A1 (en) * 1988-12-30 1990-07-11 Griesemer, Albert Ignition system for motor vehicles
WO1992019475A1 (en) * 1991-04-22 1992-11-12 Mercury Paging Limited Security system for vehicles
DE4240458C1 (en) * 1992-12-02 1993-12-23 Grundig Emv Device for protecting motor vehicles and electronic devices contained therein against theft
GB2268627A (en) * 1992-07-04 1994-01-12 Rover Group Key for a remote control security device
EP0586192A1 (en) * 1992-08-29 1994-03-09 Pilkington Micro-Electronics Limited Electronic identification system with anti-tampering protection
DE4243415C1 (en) * 1992-12-17 1994-04-14 Detecon Gmbh Alarm system for moving goods
DE4242492A1 (en) * 1992-12-16 1994-06-23 Telefunken Microelectron Antitheft prevention system for motor vehicle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1188029A1 (en) * 1983-09-30 1985-10-30 Masterov Petr V Automobile coded antijoy ride device
SU1544613A1 (en) * 1987-06-23 1990-02-23 Л Ф Николаев ( ь2) I; ми,-, } |5Ь) Патент Японии .V 60 к.. В 60 R 2S О 1985 Antitheft vehicle device
EP0377128A1 (en) * 1988-12-30 1990-07-11 Griesemer, Albert Ignition system for motor vehicles
WO1992019475A1 (en) * 1991-04-22 1992-11-12 Mercury Paging Limited Security system for vehicles
GB2268627A (en) * 1992-07-04 1994-01-12 Rover Group Key for a remote control security device
EP0586192A1 (en) * 1992-08-29 1994-03-09 Pilkington Micro-Electronics Limited Electronic identification system with anti-tampering protection
DE4240458C1 (en) * 1992-12-02 1993-12-23 Grundig Emv Device for protecting motor vehicles and electronic devices contained therein against theft
DE4242492A1 (en) * 1992-12-16 1994-06-23 Telefunken Microelectron Antitheft prevention system for motor vehicle
DE4243415C1 (en) * 1992-12-17 1994-04-14 Detecon Gmbh Alarm system for moving goods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539011A1 (en) * 1994-10-19 1996-04-25 Honda Motor Co Ltd Vehicle anti-theft system
US5686883A (en) * 1994-10-19 1997-11-11 Honda Giken Kogyo Kabushiki Kaisha Vehicle anti-theft system
DE19539011B4 (en) * 1994-10-19 2006-10-12 Honda Giken Kogyo K.K. Vehicle anti-theft system
EP1188627A3 (en) * 2000-09-13 2004-03-03 Mazda Motor Corporation Anti-theft system for vehicle
US6777826B2 (en) 2000-09-13 2004-08-17 Mazda Motor Corporation Anti-theft system for vehicle
US7154384B2 (en) 2003-01-21 2006-12-26 Nec Corporation Vehicle theft protection system, a method of protecting a vehicle from theft, a vehicle-onboard device, a management station, and a program for protecting a vehicle from theft
DE102004002928B4 (en) 2003-01-21 2020-07-16 Nec Corp. Anti-theft system, method for protecting a vehicle against theft, vehicle on-board device, management station and program for protecting a vehicle against theft

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