WO2009015681A1 - Method and on-board electrical system of a motor vehicle comprising an immobilizer - Google Patents
Method and on-board electrical system of a motor vehicle comprising an immobilizer Download PDFInfo
- Publication number
- WO2009015681A1 WO2009015681A1 PCT/EP2007/006834 EP2007006834W WO2009015681A1 WO 2009015681 A1 WO2009015681 A1 WO 2009015681A1 EP 2007006834 W EP2007006834 W EP 2007006834W WO 2009015681 A1 WO2009015681 A1 WO 2009015681A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- type
- control unit
- control device
- immobilizer
- operating state
- Prior art date
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
- B60R25/01—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
Definitions
- the invention relates to a method for providing an immobilizer in a motor vehicle according to the preamble of claim 1.
- the same control units are always the participants of an immobilizer network.
- the authenticity of each of the immobilizer network controllers is checked based on known challenge-response techniques. If the ECUs participating in or participating in the immobilizer network are authentic, the immobilizer is canceled after the detection of an authentic vehicle key.
- Object of the present invention is in particular to increase the effort to overcome known immobilizers.
- At least one control device of a first type, a control device of a second type and a control device of a third type are used.
- the control unit of the first type monitors the presence of a certain property of the motor vehicle and outputs corresponding measured values.
- the measured values are received by an evaluation device and compared with at least one reference measured value.
- the evaluation device gives if missing Deviations at least one trigger message, which is received by at least one controller of a second type and at least one controller of a third type.
- the at least one control device of the second type changes from a first operating state to a second operating state.
- the at least one control device of the third type which likewise has the first and the second operating state, changes from the second operating state into the first operating state.
- the measured values ascertained for certain properties of the motor vehicle are monitored and these are preferably used to change the operating state of control devices both in a first manner and in a second manner, the manipulation effort can be considerably increased.
- At least one so-called detecting control device is used to provide the measured values to be monitored.
- the measured values to be monitored in the preferred embodiment of an evaluation device in the form of a so-called master security module to deviations compared. one or more predetermined reference measured values monitored out.
- control device of the second type is a control device which only works when it has received the triggering message.
- the control unit of the third type is a control unit which no longer functions when it has received the triggering message. This plurality of different behaviors makes manipulation more difficult.
- control unit of the second type is a transmission control unit, a starter control unit, an engine control unit or an EMF control unit (???).
- control unit of the third type is an EKP control unit (???) or a ZGW control unit (???).
- control devices and the evaluation device communicate with one another via one or more data buses and the measured values and / or the triggering message are transmitted in a tamper-proof manner.
- the invention also makes it possible to provide a tamper-proof vehicle electrical system or a tamper-proof immobilizer for a motor vehicle in that the vehicle electrical system or the immobilizer performs a method according to one of the preceding claims.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007003543T DE112007003543A5 (en) | 2007-08-02 | 2007-08-02 | Method and electrical system of a motor vehicle with an immobilizer |
PCT/EP2007/006834 WO2009015681A1 (en) | 2007-08-02 | 2007-08-02 | Method and on-board electrical system of a motor vehicle comprising an immobilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2007/006834 WO2009015681A1 (en) | 2007-08-02 | 2007-08-02 | Method and on-board electrical system of a motor vehicle comprising an immobilizer |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009015681A1 true WO2009015681A1 (en) | 2009-02-05 |
Family
ID=39322822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/006834 WO2009015681A1 (en) | 2007-08-02 | 2007-08-02 | Method and on-board electrical system of a motor vehicle comprising an immobilizer |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE112007003543A5 (en) |
WO (1) | WO2009015681A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285160A (en) * | 1993-12-27 | 1995-06-28 | Nissan Motor | Anti-theft car protection system |
-
2007
- 2007-08-02 DE DE112007003543T patent/DE112007003543A5/en not_active Ceased
- 2007-08-02 WO PCT/EP2007/006834 patent/WO2009015681A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285160A (en) * | 1993-12-27 | 1995-06-28 | Nissan Motor | Anti-theft car protection system |
Also Published As
Publication number | Publication date |
---|---|
DE112007003543A5 (en) | 2010-06-10 |
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