DE19940323A1 - Motor vehicle has steering aid driven by electric motor, arrangement for interrupting operation of electric motor connected to access control arrangement, e.g. ignition lock/immobiliser - Google Patents

Motor vehicle has steering aid driven by electric motor, arrangement for interrupting operation of electric motor connected to access control arrangement, e.g. ignition lock/immobiliser

Info

Publication number
DE19940323A1
DE19940323A1 DE1999140323 DE19940323A DE19940323A1 DE 19940323 A1 DE19940323 A1 DE 19940323A1 DE 1999140323 DE1999140323 DE 1999140323 DE 19940323 A DE19940323 A DE 19940323A DE 19940323 A1 DE19940323 A1 DE 19940323A1
Authority
DE
Germany
Prior art keywords
electric motor
vehicle
motor
steering
arrangement
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Withdrawn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
DE1999140323
Other languages
German (de)
Inventor
Werner Schleidt
Rudi Schieck
Frank Jung
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 GmbH
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 GmbH filed Critical Adam Opel GmbH
Priority to DE1999140323 priority Critical patent/DE19940323A1/en
Publication of DE19940323A1 publication Critical patent/DE19940323A1/en
Withdrawn legal-status Critical Current

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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
    • B60R25/01Fittings 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
    • B60R25/02Fittings 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 steering mechanism
    • B60R25/021Fittings 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 steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch

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

Abstract

The vehicle has a steering aid driven by an electric motor (M) with an arrangement for interrupting the operation of the electric motor connected to an access control arrangement, such as an ignition lock (11) and/or immobiliser (8). Steering assistance supported by the electric motor only operates after successful access authorisation.

Description

Die Erfindung bezieht sich auf ein Kraftfahr­ zeug mit Lenkhilfe mit denen im Oberbegriff des Patentan­ spruches 1 angegebenen Merkmalen. Fahrzeuge dieser Art sind beispielsweise aus DE 37 41 581 C2 bekannt. Dort wird ein Elektromotor zur Erzeugung von Lenkhilfskräften eingesetzt, der in Abhängigkeit von der Fahrzeuggeschwin­ digkeit anzusteuern aber auch kurzzuschließen ist, um Gierbewegungen des Fahrzeuges zu verringern.The invention relates to a motor vehicle stuff with steering aid with those in the preamble of the patent pronounced 1 characteristics. Vehicles of this type are known for example from DE 37 41 581 C2. There becomes an electric motor for the production of steering assistants used, depending on the vehicle speed control but also to be short-circuited to Reduce yawing movements of the vehicle.

Zur Verringerung des Leistungsbedarfs ist auch aus DE 29 31 541 A1 ein abschaltbarer elektrischer Lenk­ hilfsmotor bekannt.To reduce the power requirement is also from DE 29 31 541 A1 a switchable electric steering auxiliary engine known.

In DE 38 08 900 A1 ist eine Lenkhilfe beschrie­ ben, wobei ein Elektromotor von einer Steuervorrichtung geschwindigkeitsabhängig betrieben wird, womit insbeson­ dere Einparkvorgänge unterstützt werden sollen.A steering aid is described in DE 38 08 900 A1 ben, an electric motor from a control device is operated depending on the speed, with which in particular whose parking processes are to be supported.

Es ist Aufgabe der Erfindung, mit geringem Auf­ wand den Diebstahlschutz von Fahrzeugen zu verbessern, wobei Dieben keine volle Fahrzeugfunktionalität zur Ver­ fügung stehen soll.It is an object of the invention with little on to improve the theft protection of vehicles, where thieves do not have full vehicle functionality for ver ought to stand.

Zur Lösung dieser Aufgabe zeichnet sich das er­ findungsgemäße Fahrzeug durch die im Patentanspruch 1 an­ gegebenen Merkmale aus. Weitere Einzelheiten ergeben sich aus den Patentansprüchen 2-5.To solve this task, he excels Vehicle according to the invention by the in claim 1  given characteristics. Further details emerge from claims 2-5.

Fahrzeuge weisen heute Mittel zur Zugangskon­ trolle, wie ein Zündschloss und/oder eine Wegfahrsperre auf. Zur Betätigung der Zündung ist ein Zündschlüssel er­ forderlich, und betriebswesentliche Steuergeräte arbeiten nur, wenn ein spezieller Code von einem fahrzeugseitigen Sender aus übermittelt wird. Erfindungsgemäß ist ein elektrischer Lenkhilfemotor nicht betriebsfähig, wenn das Fahrzeug abgestellt ist, solange, bis ein gültiger Zu­ gangs-Berechtigungsnachweis erfolgt ist. Mittel zur Un­ terbrechung des Betriebs des Elektromotors sind mit den Mitteln zur Zugangskontrolle verbunden, so dass die not­ wendigen Eingangsinformationen übermittelt werden können. Vorzugsweise erfolgt dies über einen Fahrzeug-BUS. Es kann sich um ein Unterbrecher-Relais oder um eine Steuer­ vorrichtung handeln. Der Motorbetrieb kann einerseits einfach unterbrochen werden, der Motor kann kurzgeschlos­ sen werden, oder der Motor kann sogar ein Lenkbewegungen entgegenwirkendes Drehmoment abgeben, wenn kein Zugangs- Berechtigungsnachweis erbracht wurde.Vehicles today have means of access control trolls, like an ignition lock and / or an immobilizer on. An ignition key is used to actuate the ignition required, and essential control units work only if a special code from a vehicle side Sender is transmitted from. According to the invention electric power steering motor not operational if that Vehicle is parked until a valid Zu proof of eligibility has been provided. Means to the Un Interruption of the operation of the electric motor are with the Means of access control, so that the emergency nimble input information can be transmitted. This is preferably done via a vehicle bus. It can be a breaker relay or a control act device. The engine operation can on the one hand simply interrupted, the motor can short-circuit sen, or the motor can even make steering movements deliver counteracting torque if no access Proof of eligibility has been provided.

Zur Vermeidung von Sicherheitsrisiken ist die Lenkhilfe durch die genannten Mittel nur einmalig jeweils nach bzw. bei einem Fahrzeugstart abschaltbar. Bei Weg­ fahrsperren, die auch während des Fahrzeugbetriebs die Berechtigung abfragen, wirkt sich dies nicht auf die Lenkhilfe aus, da die Lenkhilfe sonst während der Fahrt ihr Verhalten plötzlich ändern könnte, womit eine große Unfallgefahr bestünde.To avoid security risks, the Steering assistance by the means mentioned only once can be switched off after or when starting the vehicle. By way driving locks, which also during vehicle operation Query authorization, this does not affect the Steering aid off, otherwise the steering aid while driving their behavior could suddenly change, making a big one There would be an accident.

Details der Erfindung werden anhand eines Aus­ führungsbeispiels beschrieben. Die zugehörige Figur zeigt schematisch den Elektromotor der Lenkhilfe innerhalb ei­ nes elektrischen Netzes eines Fahrzeugs. Details of the invention are based on an off management example described. The associated figure shows schematically the electric motor of the steering aid within egg electrical network of a vehicle.  

Ein Elektromotor M einer Lenkhilfe steht über Leitungen 1, 2 mit einer Lenkungssteuerung 3 in elektri­ scher Verbindung, von wo aus der Motor M zur Unterstüt­ zung von Lenkungsvorgängen angesteuert wird. Die Leitun­ gen 1, 2 sind durch einen Schalter 4, wie gezeigt, kurz­ zuschließen, so dass die Funktion des Motors M nicht ge­ geben ist. Bei Kurzschluss sind vom Fahrer des Fahrzeugs sehr höhe Lenkkräfte aufzubringen, was den Diebstahl des Fahrzeugs erschwert.An electric motor M of a steering aid is connected via lines 1 , 2 with a steering control 3 in electrical connection, from where the motor M is controlled to support steering processes. The lines 1 , 2 are short-circuited by a switch 4 , as shown, so that the function of the motor M is not given. In the event of a short circuit, the driver of the vehicle must apply very high steering forces, which makes it difficult to steal the vehicle.

Der Schalter 4 wird über ein Relais 5 angesteu­ ert. Das Relais 5 wiederum schaltet in Abhängigkeit vom Vorliegen eines gültigen Berechtigungsnachweises. Dazu ist es über eine Leitung 6 mit einem Ausgang eines Motor­ steuergerätes 7 verbunden.The switch 4 is controlled via a relay 5. The relay 5 in turn switches depending on the presence of a valid proof of authorization. For this purpose, it is connected via a line 6 to an output of an engine control unit 7 .

Wie an sich bekannt, wird eine Zugangskontrolle realisiert, in dem bei einem Fahrzeugstart am Zündschloss ein Berechtigungscode abgefragt wird. Dieser Code wird an ein Wegfahrsperr-Steuergerät 8 übermittelt und von dort an das Motorsteuergerät 7 weitergeleitet, wo es überprüft wird. Nur bei Übereinstimmung des Codes mit einem erwar­ teten Code wird das Motorsteuergerät 7 freigeschaltet.As is known per se, an access control is implemented in which an authorization code is requested when the vehicle is started at the ignition lock. This code is transmitted to an immobilizer control unit 8 and from there to the engine control unit 7 , where it is checked. The engine control unit 7 is only enabled if the code matches an expected code.

Über die Leitung 6 wird nun zusätzlich auch ein Freigabe­ signal an das Relais 5 übermittelt, das dann den Schalter 4 öffnet, womit die Lenkhilfe ordnungsgemäß arbeitet. Bei anderer Ausführung der Erfindung könnten auch der Schalter 4, das Relais 5 und die Leitung 6 ent­ fallen. Anstelle dessen übernimmt die Lenkhilfesteuerung 3 auch die Funktion der Mittel zum Abschalten der Lenk­ hilfe. Diese Steuerung 3 wird über Leitungen 9, 10 (hier als Alternative gestrichelt dargestellt) mit dem Zünd­ schloss 11 des Fahrzeugs und dem Wegfahrsperrsteuergerät 8 verbunden. Nach einem Zündung-Ein-Befehl kann nun der an das Wegfahrsperr-Steuergerät 8 übermittelte Code im Steuergerät 3 selbst auf seine Richtigkeit hin überprüft werden, was grundsätzlich nach einem Zündung-Ein-Signal aber nicht öfters während des Fahrzeugbetriebs erfolgen sollte. Wird kein oder ein falscher Code übermittelt, werden die Leitungen 1, 2 im Steuergerät 3 kurzgeschlos­ sen, oder der Motor M wird sogar derart angesteuert, dass seine Kraft Lenkbewegungen am Lenkrad entgegenwirkt. So ist ein Fahrzeugbetrieb nahezu unmöglich, und auch ein Austausch des Motorsteuergerätes 7 führt nicht zur vollen Funktionsfähigkeit des Fahrzeuges.Via the line 6 , a release signal is now also transmitted to the relay 5 , which then opens the switch 4 , with which the steering aid works properly. In another embodiment of the invention, the switch 4 , the relay 5 and the line 6 could fall ent. Instead, the power steering control 3 also assumes the function of the means for switching off the power steering. This control 3 is connected via lines 9 , 10 (shown here in dashed lines as an alternative) to the ignition lock 11 of the vehicle and the immobilizer control unit 8 . After an ignition-on command, the correctness of the code transmitted to the immobilizer control unit 8 can now be checked in the control unit 3 itself, which in principle should not take place after the ignition-on signal but more often during vehicle operation. If no code or an incorrect code is transmitted, lines 1 , 2 are short-circuited in control unit 3 , or motor M is even activated in such a way that its force counteracts steering movements on the steering wheel. Thus, vehicle operation is almost impossible, and even an exchange of the engine control unit 7 does not lead to the full functionality of the vehicle.

Die im Beispiel als Leitungsverbindungen aufge­ zeigten Signalwege können vorteilhaft auch durch ein Fahrzeug-BUS realisiert sein.The in the example as line connections showed signaling pathways can also be beneficial by a Vehicle BUS can be realized.

Claims (5)

1. Kraftfahrzeug mit einer über einen Elektromotor (M) angetriebenen Lenkhilfe mit Mitteln zur Unterbre­ chung des Betriebs des Elektromotors (M), dadurch gekennzeichnet, dass die Mittel zur Unterbrechung des Betriebs des Elektromotors (M) in Verbindung stehen mit Mitteln zur Zugangskontrolle des Fahrzeu­ ges, wie Zündschloss (11) und/oder Wegfahrsperre (8) und eine durch den Elektromotor (M) unterstützte Lenkhilfe nur nach erfolgtem Zugangs-Berechtigungs­ nachweis erfolgt.1. Motor vehicle with an electric motor (M) driven steering aid with means for interrupting the operation of the electric motor (M), characterized in that the means for interrupting the operation of the electric motor (M) are in communication with means for access control of the vehicle ges, such as the ignition lock ( 11 ) and / or immobilizer ( 8 ) and a steering aid supported by the electric motor (M) only after proof of access authorization. 2. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeich­ net, dass es sich bei dem Mittel zur Unterbrechung des Betriebs des Elektromotors (M) um ein Relais (5) handelt, welches den Elektromotor (M) in einer Schaltstellung kurzschließt, die dann eingenommen wird, wenn kein notwendiger Zugangs-Berechtigungs­ nachweis vorliegt.2. Motor vehicle according to claim 1, characterized in that the means for interrupting the operation of the electric motor (M) is a relay ( 5 ) which short-circuits the electric motor (M) in a switching position which is then assumed, if there is no necessary proof of access authorization. 3. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeich­ net, dass es sich bei dem Mittel zur Unterbrechung des Betriebs des Elektromotors (M) um eine Steuer­ vorrichtung(3) handelt, die den Motor bei nicht vor­ liegenden Zugangs-Berechtigungsnachweis in Lenkbewe­ gungen verändernder Weise ansteuert.3. Motor vehicle according to claim 1, characterized in that it is in the means for interrupting the operation of the electric motor (M) is a control device ( 3 ) which changes the engine in non-existing access authorization in steering movements changing manner controls. 4. Kraftfahrzeug nach Anspruch 2 oder 3, dadurch ge­ kennzeichnet, dass das Relais (5) bzw. die Steuer­ vorrichtung (3) über einen Fahrzeug-BUS mit dem Zündschloss (11) und/oder der Wegfahrsperre (8) ver­ bunden ist, von wo aus ein die Zugangsberechtigung darstellendes Signal übermittelt wird. 4. Motor vehicle according to claim 2 or 3, characterized in that the relay ( 5 ) or the control device ( 3 ) via a vehicle bus with the ignition lock ( 11 ) and / or the immobilizer ( 8 ) is connected, from where a signal representing the access authorization is transmitted. 5. Kraftfahrzeug nach einem der Ansprüche 1-4, da­ durch gekennzeichnet, dass der Betrieb des Elektro­ motors (M) der Lenkhilfe durch die Mittel nur unmit­ telbar nach Start eines Fahrzeugmotors zu unterbre­ chen/freizugeben ist und eine erneute Berücksichti­ gung des Zugangs-Berechtigungsnachweises erst nach Abstellen des Fahrzeugmotors erfolgt.5. Motor vehicle according to one of claims 1-4, there characterized by that the operation of the electric motors (M) of the steering aid only by the means available after starting a vehicle engine Chen / is to be released and a new consideration of the access credentials only after The vehicle engine is turned off.
DE1999140323 1999-08-25 1999-08-25 Motor vehicle has steering aid driven by electric motor, arrangement for interrupting operation of electric motor connected to access control arrangement, e.g. ignition lock/immobiliser Withdrawn DE19940323A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999140323 DE19940323A1 (en) 1999-08-25 1999-08-25 Motor vehicle has steering aid driven by electric motor, arrangement for interrupting operation of electric motor connected to access control arrangement, e.g. ignition lock/immobiliser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999140323 DE19940323A1 (en) 1999-08-25 1999-08-25 Motor vehicle has steering aid driven by electric motor, arrangement for interrupting operation of electric motor connected to access control arrangement, e.g. ignition lock/immobiliser

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DE19940323A1 true DE19940323A1 (en) 2001-03-01

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158923A1 (en) * 2001-11-30 2003-06-12 Marquardt Gmbh Motor vehicle steering device, comprises a first boost drive for assisting movement of the steering column, and a locking device with a locking element and a second drive for bringing the element in and out of engagement with the column
US6857496B2 (en) * 2002-09-03 2005-02-22 Trw Inc. Vehicle steering apparatus with anti-steer security device
DE102004004537A1 (en) * 2004-01-29 2005-08-18 Volkswagen Ag Steering support process for a motor vehicle only turns the wheels in response to an instruction from an authorized operator
DE102004020513A1 (en) * 2004-04-26 2005-11-10 Lämmle, Knud Steering lock, especially for motor vehicles with steering systems with electromechanical servo systems, blocks steering with the supporting servo systems or sufficiently reduces it in its operation
DE102004035889A1 (en) * 2004-07-23 2006-03-16 Bayerische Motoren Werke Ag Power assisted steering system operating method for motor vehicle, involves blocking steering rod between steering handle and wheels by lock, and automatically releasing rod temporally before releasing lock by suitable startup of motor
DE10392434B4 (en) * 2002-03-25 2006-11-30 Jtekt Europe S.A.S. Steering unlocking device for a vehicle equipped with an electric power steering
DE102006056042A1 (en) * 2006-11-28 2008-05-29 Volkswagen Ag Electro-mechanical steering locking and releasing system for motor vehicle, has steering control device for switching from one position to another position, after reversing electronic immobilizer and after authentication by controller
DE102008026612A1 (en) * 2008-06-03 2009-12-10 Continental Automotive Gmbh Method and device for operating a vehicle with steering system and steering system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722865A1 (en) * 1995-01-20 1996-07-24 Siemens Aktiengesellschaft Anti-theft device for a vehicle
DE19736651C1 (en) * 1997-08-22 1999-08-12 Siemens Ag Theft protection system for motor vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722865A1 (en) * 1995-01-20 1996-07-24 Siemens Aktiengesellschaft Anti-theft device for a vehicle
DE19736651C1 (en) * 1997-08-22 1999-08-12 Siemens Ag Theft protection system for motor vehicle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158923A1 (en) * 2001-11-30 2003-06-12 Marquardt Gmbh Motor vehicle steering device, comprises a first boost drive for assisting movement of the steering column, and a locking device with a locking element and a second drive for bringing the element in and out of engagement with the column
DE10392434B4 (en) * 2002-03-25 2006-11-30 Jtekt Europe S.A.S. Steering unlocking device for a vehicle equipped with an electric power steering
US7178624B2 (en) 2002-03-25 2007-02-20 Koyo Steering Europe (K.S.E.) Steering system release device for a vehicle with electric power steering
US6857496B2 (en) * 2002-09-03 2005-02-22 Trw Inc. Vehicle steering apparatus with anti-steer security device
DE102004004537A1 (en) * 2004-01-29 2005-08-18 Volkswagen Ag Steering support process for a motor vehicle only turns the wheels in response to an instruction from an authorized operator
DE102004020513A1 (en) * 2004-04-26 2005-11-10 Lämmle, Knud Steering lock, especially for motor vehicles with steering systems with electromechanical servo systems, blocks steering with the supporting servo systems or sufficiently reduces it in its operation
DE102004035889A1 (en) * 2004-07-23 2006-03-16 Bayerische Motoren Werke Ag Power assisted steering system operating method for motor vehicle, involves blocking steering rod between steering handle and wheels by lock, and automatically releasing rod temporally before releasing lock by suitable startup of motor
DE102006056042A1 (en) * 2006-11-28 2008-05-29 Volkswagen Ag Electro-mechanical steering locking and releasing system for motor vehicle, has steering control device for switching from one position to another position, after reversing electronic immobilizer and after authentication by controller
DE102006056042B4 (en) * 2006-11-28 2018-06-14 Volkswagen Ag System for locking and releasing an electromechanical steering
DE102008026612A1 (en) * 2008-06-03 2009-12-10 Continental Automotive Gmbh Method and device for operating a vehicle with steering system and steering system
US8122994B2 (en) 2008-06-03 2012-02-28 Continental Automotive Gmbh Method and device for operating a vehicle with a steering system, and a steering system

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