DE19856695A1 - Method for identifying vehicle user involves pre-generating interrogation code for next ID process in control unit independently of ID process and storing in transmitter/receiver unit - Google Patents

Method for identifying vehicle user involves pre-generating interrogation code for next ID process in control unit independently of ID process and storing in transmitter/receiver unit

Info

Publication number
DE19856695A1
DE19856695A1 DE19856695A DE19856695A DE19856695A1 DE 19856695 A1 DE19856695 A1 DE 19856695A1 DE 19856695 A DE19856695 A DE 19856695A DE 19856695 A DE19856695 A DE 19856695A DE 19856695 A1 DE19856695 A1 DE 19856695A1
Authority
DE
Germany
Prior art keywords
unit
control unit
identification
transmitting
code
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.)
Granted
Application number
DE19856695A
Other languages
German (de)
Other versions
DE19856695B4 (en
Inventor
Peter Dr Diehl
Axel Nix
Burkhard Milke
Wolfgang Saucke
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.)
GM Global Technology Operations LLC
Original Assignee
Adam Opel 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 Adam Opel AG filed Critical Adam Opel AG
Priority to DE19856695A priority Critical patent/DE19856695B4/en
Publication of DE19856695A1 publication Critical patent/DE19856695A1/en
Application granted granted Critical
Publication of DE19856695B4 publication Critical patent/DE19856695B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20Means to switch the anti-theft system on or off
    • B60R25/24Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically 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
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/01Mechanical arrangements specially adapted for hands-free locking or unlocking
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically 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
    • G07C2009/00365Electronically 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 in combination with a wake-up circuit
    • G07C2009/00373Electronically 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 in combination with a wake-up circuit whereby the wake-up circuit is situated in the lock
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically 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
    • G07C2009/0042Electronically 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
    • G07C2009/00476Electronically 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
    • G07C2009/00484Electronically 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 variable code
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically 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
    • G07C2009/00769Electronically 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

Abstract

The invention relates to a method and a device for identifying a vehicle user, an electronic control unit (1) in the motor vehicle generating a question code which is sent to at least one transmission unit (3, 5) and from there wirelessly to an identification unit (7) on the user side. is forwarded, in which a response code is transmitted wirelessly from the identification unit (7) to the control unit (1), in which the response code (A) is compared in the control unit (1) with at least one expected code and, depending on the comparison result, vehicle functions are released or be blocked, and in which a question code (F1) for the next identification process is generated in time independently of the current identification process in the control unit (1), transmitted to the transmission unit (3, 5) and stored there in an electronic memory, thereby a current identification process with the communication between the transmission unit (3, 5) and the user-side identification unit (7) begins.

Description

The invention relates to a method with the The preamble of claim 1 features specified as well as a device according to the preamble of Pa claim 6.

As known from DE 196 17 038 A1, for strength Vehicle identification systems are provided that are secure should make that vehicle functions only authorized ten users are feasible. So-called passive systems work without the vehicle user actively processing a signal must send if he wants access to the vehicle. By an operation, for example a handle to Door handle, signals that the user is the vehicle wants to open. Thereupon a control unit generates while driving create a question code that is sent to the egg via a sending unit ner user identification unit is sent. Here can be a smart card in the user's pocket act. The identification unit generates an ant word (code) sent directly or indirectly to the control unit is transmitted in the vehicle. After an analysis of the Ant word, it is possible to distinguish whether the user be is entitled to use the vehicle or not. Vehicle functions can be enabled / activated or also ge to be blocked / remain.  

To increase the security of these systems, it is common that the question codes are not constant, but by Zu if generators are always newly formed. Problematic is that from the user's action to Function release takes a certain time. At a parked vehicle must be an existing vehicle BUS system must first be "woken up", then the question code generated and transmitted to the sender and ver goes on until the answer is evaluated. In DE 196 17 038 A1 attempts to remedy the situation and shorten the stated time by not pressing the button door handle is used as a start signal, but already recognized an approach of the hand to the door handle becomes. It is achieved with relatively great effort that the door handle actuation also the release of the opening voltage functions has taken place, so the lock is unlocked leaves.

It is an object of the invention, a simple but safe To create a system for passive user identification, that the user identification within a very short time realized.

To solve this problem, the fiction, excel moderate method by the specified in claim 1 Features from and is the device according to the invention by the features listed in claim 6 ge indicates. Further details of the invention emerge themselves from the patent claims 2 to 5 and 7.

The time required for user identification will be significantly reduced if a question code does not appear first is generated when it is needed, but already is kept ready in advance. It is intended to answer the question code for the next following identification code  gear in an electronic memory of a transmitter unit ready and immediately after recognizing the action request of the user from his identification unit send. At the same time, the vehicle's BUS system "Woken up" so that a control unit in the vehicle is ready to receive the response code it is directly from the identification unit or indirectly under Zwi circuit of a transceiver unit receives. In any phase during or after the current identi fication process can follow the question code for the next one generated the process and put it into the named memory be written, which is completely uncritical in terms of time and the current identification process is not negative influenced.

To achieve high system security, it is from Advantage if the time from sending a current Fra gecodes until the response code arrives. This can be done in the transmitter / receiver unit, if the answer transmitted to the control unit via this becomes. But it can also be the time from the arrival of the alarm signals at the control unit (is simultaneously with the Question code sent) until the answer arrives in Control unit can be detected. Exceeds the recorded time a predetermined period of time, an activation of Vehicle functions not permitted. So are so-called "Record attacks" can be prevented. That is, if one Unauthorized person receives and records the question code, it moves close to the vehicle owner Sends out the question code and receives the answer code and on then goes back to the vehicle around the Ant Sending word code will be a function to be performed already locked because the time limit has expired.

Details of the invention emerge from the following Be writing an embodiment. From the belonging The drawings show:

Fig. 1 shows a motor vehicle with an inventive SEN identification device;

Figure 2 is a schematic diagram for illustrating the process sequence.

Fig. 3 shows a plan according to Fig. 2 with an alternativ ven process flow.

The locking system of a motor vehicle is illustrated schematically in FIG. 1. Actuators with central locking are provided on each door, the trunk and the fuel filler cap. Furthermore, a control unit 1 in the vehicle is of importance for the invention, from which vehicle functions can be enabled or disabled. The control unit 1 is connected to a transmission unit 3 in a driver's door 4 via a BUS system 2 . A transmission unit 5 in a passenger door 6 can be designed identically. In another embodiment of the invention, the transmission units 3 and 5 can also be designed as transmission / reception units 3 , 5 . The identification device of the vehicle also includes at least one identification unit 7 , which carries a vehicle slot. This unit 7 is designed, for example, as a chip card and, in a known manner, has its own memory, computing capacity and a transmitting / receiving device.

Details of a door handle 8 are not shown in the drawing. In a known manner it is realized that it is automatically recognized when the door handle 8 is actuated. This can be done as specified in DE 196 17 038 A1, or a door handle contact switch signals an opening request by the user. It is also possible to record the approach of a vehicle user in another way (pressing a separate button; touching a vehicle part; optical methods...).

The identification method to be described below with reference to FIG. 2 begins in each case with the recognition of a specific condition, which is symbolized with 0 in FIG. 2 and is supplied to the transmission unit 3 or 5 . A question code F is then immediately removed from a memory Sp of the transmission unit 3 , 5 and transmitted wirelessly to the identification unit 7 . At the same time, a wake-up signal 9 is transmitted from the transmission unit 3 , 5 to the control unit 1 , whereby the control unit 1 itself, the vehicle bus 2 and other control units are switched to the active state (method step I). In the following method step II, a response code A (wireless) calculated in the identification unit 7 is sent to the control unit 1 . After this answer has been received, the control unit 1 generates a new question code F1 in method step III and transmits it to the memory Sp of the transmitting unit 3 , 5 , so that the question code F1 is then ready for the next identification process. At the same time, response code A is checked in control unit 1 . If it corresponds to the expected value, vehicle functions are activated in a known manner in method step IV. If this is not the case, these functions remain blocked.

In Fig. 3, a slightly modified variant is shown of the procedure. The unit 3 , 5 is designed as a transmitting / receiving unit 3 , 5 . The response code A is sent wirelessly to the unit 3 , 5 (step II ') and from there via the BUS 2 to the control unit 1 (step II "). Another difference to the method according to FIG. 2 is that that the vehicle functions are already activated in process step III '(as long as the answer code A is okay) and only then in step IV' the new question code F1 is determined and transmitted to the memory Sp of the transceiver unit 3 , 5 .

In any case, it is of particular advantage that the question code F is sent immediately upon receipt of an initialization signal 0, which means a significant gain in time compared to known processes. A new question code F1 is generated at non-critical time and transmitted to the unit 3 , 5 . The system is already working while the vehicle BUS 2 and the control unit 1 are "woken up".

Claims (7)

1. A method for identifying a vehicle user in relation to an identification device in a motor vehicle, in which an electronic control unit ( 1 ) in the motor vehicle generates a question code (F) which, via electrical conductors ( 2 ), either leads to at least one transmission unit ( 3 , 5 ) or at least a transmitting and receiving unit ( 3 , 5 ) and from there wirelessly to a user-side identification unit ( 7 ), in which a response code (A) is generated in the identification unit ( 7 ) and from there wirelessly the transmitting and receiving unit ( 3 , 5 ) or directly to the control unit ( 1 ) and in which the response code (A) in the control unit ( 1 ) is compared with at least one expected code and depending on the comparison result, vehicle functions are released or be blocked, characterized in that a question code (F1) for the next identification process is independent of the time sem identification process generated in advance in the control unit ( 1 ), transmitted to the transmitting unit ( 3 , 5 ) or transmitting and receiving unit ( 3 , 5 ) and stored there in an electronic memory (Sp), whereby this identification process with the communication begins between the transmitting unit ( 3 , 5 ) or the transmitting and receiving unit ( 3 , 5 ) and the user-side identification unit ( 7 ).
2. The method according to claim 1, characterized in that the question code (F1) for the next identification process after completion or during a current identification process to the sensor unit ( 3 , 5 ) or the transmitting and receiving unit ( 3 , 5 ) and transmitted is saved there.
3. The method according to claim 1 or 2, characterized in that a wake-up signal ( 9 ) is transmitted to the control unit ( 1 ) simultaneously with the sending of a question code (F) to the user-side identification unit ( 7 ).
4. The method according to claim 3, characterized in that the control unit ( 1 ) has an electronic time taker, which detects the time from the reception of a wake-up signal ( 9 ) to the arrival of the response code (A), the response code (A) only then is used for identification if it was received within a specified period of time.
5. The method according to any one of claims 1-3, characterized in that the transmitting and receiving unit ( 3 , 5 ) has an electronic timekeeper, the time from sending a question code (F) to receiving a response code (A) detected, the response word code (A) is only transmitted to the control unit ( 1 ) if it was received within a specified period of time.
6. Identification device for a motor vehicle, with an electronic control unit ( 1 ) in the motor vehicle, via electrical conductors ( 2 ) either with at least one transmitter unit ( 3 , 5 ) or with at least one transmitter and receiver unit ( 3 , 5 ) is bound and with a user-side identification unit ( 7 ) for wireless communication, whereby for user identification question codes (F) from the control unit ( 1 ) via the transmitting unit ( 3 , 5 ) or the transmitting and receiving unit ( 3 , 5 ) to the identi fication unit ( 7 ) and response codes (A) from the identification unit ( 7 ) via the transmitting and receiving unit ( 3 , 5 ) or directly to the control unit ( 1 ) and the control unit ( 1 ) depending on the response code received (A ) Vehicle functions releases or blocks, characterized in that the transmitting unit ( 3 , 5 ) or the transmitting and receiving unit ( 3 , 5 ) with an electronic memory (Sp) for a question ecode (F1) of the next following identification process and thus at the start of the next following identification process no question code (F) is generated by the control unit ( 1 ) and sent to the transmitter unit ( 3 , 5 ) or the transmitter and receiver unit ( 3rd , 5 ) is to be transmitted.
7. Identification device according to claim 6, characterized in that the electrical conductor ( 2 ) between the control unit's ( 1 ) and the transmitter unit ( 3 , 5 ) or the transmitter and receiver unit ( 3 , 5 ) by a vehicle bus ( 2nd ) are realized and a wake-up signal ( 9 ), which is sent to the control unit ( 1 ) at the start of an identification process, serves to activate the BUS ( 2 ).
DE19856695A 1998-12-09 1998-12-09 Method and device for identifying a vehicle user Expired - Fee Related DE19856695B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19856695A DE19856695B4 (en) 1998-12-09 1998-12-09 Method and device for identifying a vehicle user

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19856695A DE19856695B4 (en) 1998-12-09 1998-12-09 Method and device for identifying a vehicle user

Publications (2)

Publication Number Publication Date
DE19856695A1 true DE19856695A1 (en) 2000-06-15
DE19856695B4 DE19856695B4 (en) 2008-07-10

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DE19856695A Expired - Fee Related DE19856695B4 (en) 1998-12-09 1998-12-09 Method and device for identifying a vehicle user

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008058057A2 (en) * 2006-11-03 2008-05-15 Continental Automotive Systems Us, Inc. Cryptology calculation for last used authentication device
WO2008127400A2 (en) * 2006-11-03 2008-10-23 Continental Automotive Systems Us, Inc. Cryptology calculation for remote entry devices
DE102007031738A1 (en) * 2007-07-06 2009-01-08 Audi Ag Data communication protecting method for motor vehicle, involves utilizing actual code for protecting function by each signal sequence, and determining code of signal sequence for implementing predetermined function before call of function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631501A (en) * 1995-02-08 1997-05-20 Honda Giken Kogyo Kabushiki Kaisha Data processing method and apparatus for vehicle
FR2749607A1 (en) * 1996-06-10 1997-12-12 Valeo Electronique Unlocking security system for cars
DE4433499C2 (en) * 1994-09-20 1998-06-18 Siemens Ag Electronic anti-theft protection system for a motor vehicle
DE29623461U1 (en) * 1995-10-26 1998-07-23 Valeo Securite Habitacle System for hands-free unlocking and / or opening of opening devices of a motor vehicle
DE19718764C1 (en) * 1997-05-06 1998-08-27 Siemens Ag Theft protection system for motor vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433499C2 (en) * 1994-09-20 1998-06-18 Siemens Ag Electronic anti-theft protection system for a motor vehicle
US5631501A (en) * 1995-02-08 1997-05-20 Honda Giken Kogyo Kabushiki Kaisha Data processing method and apparatus for vehicle
DE29623461U1 (en) * 1995-10-26 1998-07-23 Valeo Securite Habitacle System for hands-free unlocking and / or opening of opening devices of a motor vehicle
FR2749607A1 (en) * 1996-06-10 1997-12-12 Valeo Electronique Unlocking security system for cars
DE19718764C1 (en) * 1997-05-06 1998-08-27 Siemens Ag Theft protection system for motor vehicle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008058057A2 (en) * 2006-11-03 2008-05-15 Continental Automotive Systems Us, Inc. Cryptology calculation for last used authentication device
WO2008058057A3 (en) * 2006-11-03 2008-07-31 Continental Automotive Systems Cryptology calculation for last used authentication device
WO2008127400A2 (en) * 2006-11-03 2008-10-23 Continental Automotive Systems Us, Inc. Cryptology calculation for remote entry devices
WO2008127400A3 (en) * 2006-11-03 2008-12-18 Continental Automotive Systems Cryptology calculation for remote entry devices
US8275511B2 (en) 2006-11-03 2012-09-25 Continental Automotive Systems Us, Inc. Cryptology calculation for remote entry devices
DE102007031738A1 (en) * 2007-07-06 2009-01-08 Audi Ag Data communication protecting method for motor vehicle, involves utilizing actual code for protecting function by each signal sequence, and determining code of signal sequence for implementing predetermined function before call of function
DE102007031738B4 (en) * 2007-07-06 2009-04-02 Audi Ag Method and system for securing the data transmission between at least two on-board electronic components of a motor vehicle

Also Published As

Publication number Publication date
DE19856695B4 (en) 2008-07-10

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8181 Inventor (new situation)

Free format text: DIEHL, PETER G.,DIPL.-ING., 64521 GROSS-GERAU, DE NIX, AXEL, DIPL.-ING., 65193 WIESBADEN, DE MILKE, BURKHARD, DR.-ING., 63071 OFFENBACH, DE SAUCKE, WOLFGANG, DIPL.-ING., 64521 GROSS-GERAU, DE

8110 Request for examination paragraph 44
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GM GLOBAL TECHNOLOGY OPERATIONS, INC., DETROIT, US

8328 Change in the person/name/address of the agent

Representative=s name: STRAUSS, P., DIPL.-PHYS.UNIV. MA, PAT.-ANW., 65193

8380 Miscellaneous part iii

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Owner name: GM GLOBAL TECHNOLOGY OPERATIONS LLC (N. D. GES, US

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Effective date: 20110323

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R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee