EP1173356A1 - Steering system for motor vehicles with electric control devices - Google Patents
Steering system for motor vehicles with electric control devicesInfo
- Publication number
- EP1173356A1 EP1173356A1 EP00916989A EP00916989A EP1173356A1 EP 1173356 A1 EP1173356 A1 EP 1173356A1 EP 00916989 A EP00916989 A EP 00916989A EP 00916989 A EP00916989 A EP 00916989A EP 1173356 A1 EP1173356 A1 EP 1173356A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steering
- vehicle wheels
- basic position
- steering wheel
- steerable vehicle
- 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- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/001—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits the torque NOT being among the input parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/001—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/001—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
- B62D5/005—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup means for generating torque on steering wheel or input member, e.g. feedback
Definitions
- the invention relates to a steering device for vehicles with electrical control devices according to the preamble of claim 1.
- Steering devices for vehicles are known in which there is no mechanical coupling between the steering wheel and the steerable vehicle wheels.
- the steering movements carried out on the steering wheel are electronically recorded by means of angle sensors or in some other way and converted into corresponding steering movements on the steerable vehicle wheels by means of electrical control devices.
- Steering devices of this type are known under the term “steer by wire systems”.
- Such a steering device with electrical control devices is known from DE 195 39 101 C1, in which a return spring arrangement acts as part of a reaction simulator on the steering rod of the steering wheel.
- the return spring arrangement has the purpose that when the steering wheel is deflected from its straight-ahead position, a counterforce is generated which is intended to give the driver a steering feeling as in conventional steering systems.
- adjustable abutments are also arranged on the return spring arrangement in order to achieve a desired reaction simulation on the steering wheel.
- the steerable vehicle wheels and the steering gear can be reset with hydraulic support after the steering wheel is released after a steering operation.
- An electric motor is not used for this power steering since the hydraulic power assist is only supplied by a servo pump.
- the steerable vehicle wheels can no longer be aligned in a desired position.
- the invention has for its object to provide a steering device for vehicles with electrical control devices, which allows the steering of the steerable vehicle wheels in a desired basic position when the vehicle engine is turned off
- an electric steering motor aligns the steerable vehicle wheels into a predetermined basic position.
- the basic position does not necessarily have to be the straight-ahead position. If the vehicle is parked on a road with a steep slope, a basic position of the vehicle wheels may be expedient, in which the steerable vehicle wheels are aligned laterally towards the curb.
- an adjustment element can be arranged on the control panel accessible by the driver.
- the setting element can be a simple rotary knob or the keyboard of an on-board computer.
- the basic position entered in each case is recorded by a control unit which, in conjunction with further electrical control devices, then causes the desired orientation of the steerable vehicle wheels when the vehicle is parked
- the steering device can also be equipped with a spring device that acts on the steering rod of the steering wheel the electrical control devices tracked the steering wheel position accordingly, so that the steerable vehicle wheels, like the steering wheel, automatically assume the straight-ahead position
- a spring device that acts on the steering rod of the steering wheel the electrical control devices tracked the steering wheel position accordingly, so that the steerable vehicle wheels, like the steering wheel, automatically assume the straight-ahead position
- the drawing shows a block diagram of the steering device which controls the steerable vehicle wheels 2, 3 of a vehicle via an electric steering motor 1.
- the position of the steering wheel 4 is reported by a sensor 5 to a control unit 6, which is connected on the output side to the electric steering motor 1 and controls it in accordance with the angular position of the steering wheel 4. There is therefore no mechanical coupling between the steering wheel 4 and the steerable vehicle wheels 2, 3.
- a spring device 8 also acts on the steering rod 7 of the steering wheel 4 and exerts a restoring torque on the steering wheel 4 via the steering rod 7 when the steering wheel 4 is deflected from the basic position.
- the handlebar 7 is coupled to an electric motor 9, which can correct the restoring torque generated by the spring device 8.
- the electric motor 9 also enables any orientation of the steering wheel 4 when the vehicle is parked.
- the electric motor 9 can be acted upon by the control unit 6 so that when the vehicle is parked the steering wheel 4 has exactly the angular position which corresponds to the steering position of the steerable vehicle wheels 2, 3.
- a desired basic position for the steerable vehicle wheels 2, 3 can be entered via an adjusting element 10, which can be, for example, a rotary knob or the keyboard of an on-board computer.
- the desired basic position is passed on to the control unit 6 via the setting element 10, which then performs a corresponding alignment of the steerable vehicle wheels 2, 3 when or after the vehicle is parked.
- the entry of the basic position for the steerable vehicle wheels 2, 3 can, however, also take place via a programming input directly on the control unit 6, so that a certain basic position can be preset in the factory. A setting element to be operated by the driver could then possibly also be omitted.
- the setting element 10 is coupled to a direction indicator 11, which shows the driver the current position of the steerable vehicle wheels 2, 3.
- the Direction indicator 11 can in the simplest case also be a rotary knob which serves to set the basic position for the steerable vehicle wheels 2, 3, so that the basic position can be seen from the position of the rotary knob.
Abstract
The invention relates to a steering system for motor vehicles that are provided with electric control devices. A steering angle predetermined at the steering wheel (4) is transmitted to an electric steering motor (1) by a control device (6) in such a manner that the steerable vehicle wheels (2, 3) are brought into the corresponding steering position by the steering motor (1). An adjusting element (10) communicates a desired basic position of the steerable vehicle wheels (2, 4) to the control device (6). The control unit (6) prompts the steering motor (1) to align the steerable vehicle wheels (2, 3) in the predetermined basic position while or once the vehicle is parked.
Description
Lenkvorrichtung für Fahrzeuge mit elektrischen Steuereinrichtungen Steering device for vehicles with electrical control devices
Die Erfindung betrifft eine Lenkvorrichtung für Fahrzeuge mit elektrischen Steuereinrichtungen gemäß Oberbegriff des Anspruchs 1.The invention relates to a steering device for vehicles with electrical control devices according to the preamble of claim 1.
Es sind Lenkvorrichtungen für Fahrzeuge bekannt, bei denen zwischen Lenkrad und den lenkbaren Fahrzeugrädern keine mechanische Kopplung besteht. Die am Lenkrad ausgeführten Lenkbewegungen werden mittels Winkelsensoren oder in anderer Weise elektronisch erfaßt und über elektrische Steuereinrichtungen in entsprechende Lenkbewegungen an den lenkbaren Fahrzeugrädern umgesetzt. Derartige Lenkvorrichtungen sind unter dem Begriff „Steer by Wire Systeme" bekannt.Steering devices for vehicles are known in which there is no mechanical coupling between the steering wheel and the steerable vehicle wheels. The steering movements carried out on the steering wheel are electronically recorded by means of angle sensors or in some other way and converted into corresponding steering movements on the steerable vehicle wheels by means of electrical control devices. Steering devices of this type are known under the term “steer by wire systems”.
Aus der DE 195 39 101 C1 ist eine derartige Lenkvorrichtung mit elektrischen Steuereinrichtungen bekannt, bei der eine Rückstellfederanordnung als Teil eines Rückwirkungssimulators an der Lenkstange des Lenkrades angreift. Die Rückstellfederanordnung hat den Zweck, daß beim Auslenken des Lenkrades aus seiner Geradeausposition eine Gegenkraft erzeugt wird, die dem Fahrer ein Lenkgefühl wie bei herkömmlichen Lenkungen geben soll. An der Rückstellfederanordnung sind zu diesem Zweck außerdem verstellbare Wiederlager angeordnet, um eine gewünschte Rückwirkungssimulation am Lenkrad zu erreichen. Im Fahrbetrieb vermag das auf das Lenkrad wirkende Rückstellmoment bei losgelassenem Lenkrad dieses weitestgehend in die gerade Ausstellung zurückzustellen. Bei stehendem Fahrzeug ist eine selbsttätige Rückstellung des Lenkrads durch das Rückstellmoment nicht möglich.Such a steering device with electrical control devices is known from DE 195 39 101 C1, in which a return spring arrangement acts as part of a reaction simulator on the steering rod of the steering wheel. The return spring arrangement has the purpose that when the steering wheel is deflected from its straight-ahead position, a counterforce is generated which is intended to give the driver a steering feeling as in conventional steering systems. For this purpose, adjustable abutments are also arranged on the return spring arrangement in order to achieve a desired reaction simulation on the steering wheel. When the steering wheel is released, the restoring torque acting on the steering wheel is able to largely return it to the current exhibition. When the vehicle is stationary, the steering wheel cannot be automatically reset by the restoring torque.
Bei einer Hilfskraftlenkung mit hydraulischer Hilfskraftunterstützung, wie sie aus der DE 197 17 796 A1 bekannt ist, können nach einem Loslassen des Lenkrades nach einem Lenkvorgang die lenkbaren Fahrzeugräder und das Lenkgetriebe mit hydraulischer Unterstützung zurückgestellt werden. Ein Elektromotor wird für diese Hilfskraftlenkung nicht verwendet, da die hydraulische Hilfskraftunterstützung ausschließlich von einer Servopumpe geliefert wird. Bei abgestelltem Fahrzeug lassen sich somit die lenkbaren Fahrzeugräder nicht mehr in eine gewünschte Position ausrichten.
Der Erfindung hegt die Aufgabe zugrunde, eine Lenkvorrichtung für Fahrzeuge mit elektrischen Steuereinrichtungen zu schaffen, die bei abgestelltem Fahrzeugmotor eine selbsttätige Ausrichtung der lenkbaren Fahrzeugrader in eine gewünschte Grundstellung ermöglichtIn the case of power steering with hydraulic power assistance, as is known from DE 197 17 796 A1, the steerable vehicle wheels and the steering gear can be reset with hydraulic support after the steering wheel is released after a steering operation. An electric motor is not used for this power steering since the hydraulic power assist is only supplied by a servo pump. When the vehicle is parked, the steerable vehicle wheels can no longer be aligned in a desired position. The invention has for its object to provide a steering device for vehicles with electrical control devices, which allows the steering of the steerable vehicle wheels in a desired basic position when the vehicle engine is turned off
Die Losung dieser Aufgabe erhalt man durch die im Anspruch 1 aufgeführten Merkmale. Bei oder kurz nach dem Abstellen des Kraftfahrzeugs richtet ein elektrischer Lenkmotor die lenkbaren Fahrzeugrader in eine vorgegebene Grundstellung aus. Die Grundstellung muß dabei nicht unbedingt die Geradeausstellung sein Wird das Fahrzeug auf einer Straße mit starkem Gefalle abgestellt, so kann eine Grundstellung der Fahrzeugrader zweckmäßig sein, bei der die lenkbaren Fahrzeugrader seitlich zur Bordsteinkante hin ausgerichtet sind.The solution to this problem is obtained by the features listed in claim 1. When or shortly after the motor vehicle is parked, an electric steering motor aligns the steerable vehicle wheels into a predetermined basic position. The basic position does not necessarily have to be the straight-ahead position. If the vehicle is parked on a road with a steep slope, a basic position of the vehicle wheels may be expedient, in which the steerable vehicle wheels are aligned laterally towards the curb.
Besonders vorteilhaft ist es, die von den lenkbaren Fahrzeugradem eingenommene Grundstellung in Form einer Richtungsanzeige dem Fahrer anzuzeigen. Der Fahrer kann dann entscheiden, ob er diese Grundstellung beibehalten oder andern mochte. Das Anzeigen der Grundstellung hat außerdem Vorteile beim Ausparken, da der Fahrer die Ausgangsstellung der Fahrzeugrader kennt und entsprechende Lenkbewegungen zum Ausparken gezielt vornehmen kann. Die Stellung der lenkbaren Fahrzeugrader kann dabei auch standig angezeigt werdenIt is particularly advantageous to show the driver the basic position assumed by the steerable vehicle wheels in the form of a direction indicator. The driver can then decide whether to maintain this basic position or change it. Displaying the home position also has advantages when parking, since the driver knows the starting position of the vehicle wheels and can make appropriate steering movements for parking. The position of the steerable vehicle wheels can also be displayed continuously
Um für die lenkbaren Fahrzeugrader beim Abstellen des Fahrzeugs eine gewünschte Grundstellung einstellen zu können, kann an dem vom Fahrer erreichbaren Bedienfeld ein Einstellelement angeordnet sein. Das Einstellelement kann ein einfacher Drehknopf oder die Tastatur eines Bordcomputers sein Die jeweils eingegebene Grundstellung wird von einer Steuereinheit erfaßt, die in Verbindung mit weiteren elektrischen Steuereinrichtungen die gewünschte Ausrichtung der lenkbaren Fahrzeugrader dann beim Abstellen des Fahrzeugs veranlaßtIn order to be able to set a desired basic position for the steerable vehicle wheels when the vehicle is parked, an adjustment element can be arranged on the control panel accessible by the driver. The setting element can be a simple rotary knob or the keyboard of an on-board computer. The basic position entered in each case is recorded by a control unit which, in conjunction with further electrical control devices, then causes the desired orientation of the steerable vehicle wheels when the vehicle is parked
Die Lenkvorrichtung kann zusätzlich mit einer Federeinrichtung, die an der Lenkstange des Lenkrads angreift, ausgestattet sein Die Federeinrichtung erzeugt bei Ausrichtung des Lenkrades aus der Geradeausstellung ein auf das Lenkrad wirkendes Gegenmoment, welches das losgelassene Lenkrad selbsttätig in die Geradeausstellung zurückdrehen kann Die lenkbaren Fahrzeugrader werden über die elektrischen Steuereinrichtungen der Lenkradstellung entsprechend nachgefuhrt, so daß die lenkbaren Fahrzeugrader ebenfalls wie das Lenkrad die Geradeausstellung selbsttätig einnehmen
Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The steering device can also be equipped with a spring device that acts on the steering rod of the steering wheel the electrical control devices tracked the steering wheel position accordingly, so that the steerable vehicle wheels, like the steering wheel, automatically assume the straight-ahead position The invention is explained in more detail below with reference to an embodiment shown in the drawing.
Die Zeichnung zeigt ein Blockschaltbild der Lenkvorrichtung, die über einen elektrischen Lenkmotor 1 die lenkbaren Fahrzeugrader 2, 3 eines Fahrzeugs steuert.The drawing shows a block diagram of the steering device which controls the steerable vehicle wheels 2, 3 of a vehicle via an electric steering motor 1.
Die Position des Lenkrades 4 wird von einem Sensor 5 an eine Steuereinheit 6 gemeldet, die ausgangsseitig mit dem elektrischen Lenkmotor 1 in Verbindung steht und diesen entsprechend der Winkelposition des Lenkrades 4 steuert. Es besteht somit keine mechanische Kopplung zwischen Lenkrad 4 und den lenkbaren Fahrzeugrädern 2, 3.The position of the steering wheel 4 is reported by a sensor 5 to a control unit 6, which is connected on the output side to the electric steering motor 1 and controls it in accordance with the angular position of the steering wheel 4. There is therefore no mechanical coupling between the steering wheel 4 and the steerable vehicle wheels 2, 3.
An der Lenkstange 7 des Lenkrades 4 greift außerdem eine Federeinrichtung 8 an, die bei Auslenkung des Lenkrades 4 aus der Grundposition ein Rückstellmoment über die Lenkstange 7 auf das Lenkrad 4 ausübt. Die Lenkstange 7 ist mit einem Elektromotor 9 gekoppelt, der eine Korrektur des von der Federeinrichtung 8 erzeugten Rückstellmoments vornehmen kann. Der Elektromotor 9 ermöglicht auch eine beliebige Ausrichtung des Lenkrades 4 beim Abstellen des Fahrzeugs. Der Elektromotor 9 kann von der Steuereinheit 6 so beaufschlagt werden, daß bei abgestelltem Fahrzeug das Lenkrad 4 exakt die Winkelposition hat, die der Lenkposition der lenkbaren Fahrzeugrader 2, 3 entspricht.A spring device 8 also acts on the steering rod 7 of the steering wheel 4 and exerts a restoring torque on the steering wheel 4 via the steering rod 7 when the steering wheel 4 is deflected from the basic position. The handlebar 7 is coupled to an electric motor 9, which can correct the restoring torque generated by the spring device 8. The electric motor 9 also enables any orientation of the steering wheel 4 when the vehicle is parked. The electric motor 9 can be acted upon by the control unit 6 so that when the vehicle is parked the steering wheel 4 has exactly the angular position which corresponds to the steering position of the steerable vehicle wheels 2, 3.
Über ein Einstellelement 10, welches beispielsweise ein Drehknopf oder die Tastatur eines Bordcomputers sein kann, ist die Eingabe einer gewünschten Grundstellung für die lenkbaren Fahrzeugrader 2, 3 möglich. Die gewünschte Grundstellung wird über das Einstellelement 10 an die Steuereinheit 6 weitergegeben, die bei oder nach dem Abstellen des Fahrzeugs dann eine entsprechende Ausrichtung der lenkbaren Fahrzeugrader 2, 3 vornimmt.A desired basic position for the steerable vehicle wheels 2, 3 can be entered via an adjusting element 10, which can be, for example, a rotary knob or the keyboard of an on-board computer. The desired basic position is passed on to the control unit 6 via the setting element 10, which then performs a corresponding alignment of the steerable vehicle wheels 2, 3 when or after the vehicle is parked.
Die Eingabe der Grundstellung für die lenkbaren Fahrzeugrader 2, 3 kann aber auch über einen Programmiereingang direkt an der Steuereinheit 6 erfolgen, so daß werkseitig eine bestimmte Grundstellung vorgegeben werden kann. Ein vom Fahrer zu bedienendes Einstellelement könnte dann gegebenenfalls auch entfallen.The entry of the basic position for the steerable vehicle wheels 2, 3 can, however, also take place via a programming input directly on the control unit 6, so that a certain basic position can be preset in the factory. A setting element to be operated by the driver could then possibly also be omitted.
Das Einstellelement 10 ist mit einer Richtungsanzeige 11 gekoppelt, die dem Fahrer die jeweils aktuelle Position der lenkbaren Fahrzeugrader 2, 3 anzeigt. Die
Richtungsanzeige 11 kann im einfachsten Fall auch ein Drehknopf sein, der zur Einstellung der Grundstellung für die lenkbaren Fahrzeugrader 2, 3 dient, so daß anhand der Stellung des Drehknopfes die Grundstellung ersichtlich ist.
The setting element 10 is coupled to a direction indicator 11, which shows the driver the current position of the steerable vehicle wheels 2, 3. The Direction indicator 11 can in the simplest case also be a rotary knob which serves to set the basic position for the steerable vehicle wheels 2, 3, so that the basic position can be seen from the position of the rotary knob.
BEZUGSZEICHENLISTEREFERENCE SIGN LIST
LenkmotorSteering motor
FahrzeugraderVehicle wheels
Lenkradsteering wheel
Sensorsensor
SteuereinheitControl unit
LenkstangeHandlebar
FedereinrichtungSpring device
ElektromotorElectric motor
EinstellelementAdjustment element
Richtungsanzeige
Direction display
Claims
1. Lenkvorrichtung für Fahrzeuge mit elektrischen Steuereinrichtungen, die am Lenkrad (4) ausgeführte Lenkvorgänge in entsprechende Lenkbewegungen an den mittels eines elektrischen Lenkmotors (1) lenkbaren Fahrzeugrädern (2, 3) umsetzen, dadurch gekennzeichnet, daß eine Steuereinheit (6) bei oder kurz nach dem Abstellen des Fahrzeugs den Lenkmotor (1 ) so ansteuert, daß dieser die lenkbaren Fahrzeugrader (2, 3) in eine vorgegebene Grundstellung ausrichtet.1. Steering device for vehicles with electrical control devices, the steering operations carried out on the steering wheel (4) in corresponding steering movements on the by means of an electric steering motor (1) steerable vehicle wheels (2, 3), characterized in that a control unit (6) at or short after the vehicle has been switched off, the steering motor (1) is actuated in such a way that it aligns the steerable vehicle wheels (2, 3) into a predetermined basic position.
2. Lenkvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, daß die lenkbaren Fahrzeugrader (2, 3) in Grundstellung geradeaus oder zur Bordsteinkante hin seitlich ausgerichtet sind.2. Steering device according to claim 1, characterized in that the steerable vehicle wheels (2, 3) in the basic position are straight or laterally aligned towards the curb.
3. Lenkvorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die von den lenkbaren Fahrzeugrädern (2, 3) eingenommene Stellung in Form einer Richtungsanzeige (11 ) dem Fahrer angezeigt wird.3. Steering device according to one of claims 1 or 2, characterized in that the position assumed by the steerable vehicle wheels (2, 3) is displayed to the driver in the form of a direction indicator (11).
4. Lenkvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Bereich des vom Fahrer erreichbaren Bedienfeldes ein Einstellelement (10) zur Einstellung einer gewünschten Grundstellung angeordnet ist.4. Steering device according to one of the preceding claims, characterized in that an adjusting element (10) for setting a desired basic position is arranged in the area of the control panel accessible by the driver.
5. Lenkvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Einstellelement (10) die Tastatur eines Bordcomputers oder ein separater Drehknopf ist. 5. Steering device according to claim 4, characterized in that the adjusting element (10) is the keyboard of an on-board computer or a separate rotary knob.
6. Lenkvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Eingabe der Grundstellung über einen Programmiereingang direkt an der Steuereinheit (6) erfolgt.6. Steering device according to one of the preceding claims, characterized in that the entry of the basic position via a programming input takes place directly on the control unit (6).
7. Lenkvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Federeinrichtung (8) an der Lenkstange (7) des Lenkrades (4) angreift, die bei Auslenkung des Lenkrades (4) aus der Geradeaussteliung ein auf das Lenkrad (4) wirkendes Gegenmoment erzeugt, welches das losgelassene Lenkrad (4) selbsttätig in die Grundstellung zurückdreht und damit bei abgestelltem Fahrzeug eine entsprechende Geradeausstellung oder eine andere vorgegebene Grundstellung der lenkbaren Fahrzeugrader (2, 3) über die Steuereinheit (6) veranlaßt. 7. Steering device according to one of the preceding claims, characterized in that a spring device (8) on the handlebar (7) of the steering wheel (4) engages, which acts on the steering wheel (4) upon deflection of the steering wheel (4) from the straight line Counter torque generated, which automatically turns the released steering wheel (4) back into the basic position and thus causes a corresponding straight-ahead position or another predetermined basic position of the steerable vehicle wheels (2, 3) via the control unit (6) when the vehicle is parked.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19918355 | 1999-04-22 | ||
| DE1999118355 DE19918355A1 (en) | 1999-04-22 | 1999-04-22 | Steering system for motor vehicle with electrical control devices and no direct linkage between steering wheel and road wheels |
| PCT/EP2000/002521 WO2000064726A1 (en) | 1999-04-22 | 2000-03-22 | Steering system for motor vehicles with electric control devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1173356A1 true EP1173356A1 (en) | 2002-01-23 |
Family
ID=7905546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00916989A Withdrawn EP1173356A1 (en) | 1999-04-22 | 2000-03-22 | Steering system for motor vehicles with electric control devices |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1173356A1 (en) |
| DE (1) | DE19918355A1 (en) |
| WO (1) | WO2000064726A1 (en) |
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| US6922620B2 (en) | 2001-11-06 | 2005-07-26 | Delphi Technologies, Inc. | Actuator synchronization and locking concept for steer by wire applications |
| DE10155441B4 (en) * | 2001-11-12 | 2004-08-05 | Jungheinrich Ag | Method and device for aligning a steering angle sensor for electrical steering of an industrial truck |
| FR2839291A1 (en) * | 2002-05-03 | 2003-11-07 | Conception & Dev Michelin Sa | Steering control for vehicle uses electrical linkage, with angle and force sensors detecting movement of two-handled steering wheel |
| FR2832682A1 (en) | 2001-11-23 | 2003-05-30 | Conception & Dev Michelin Sa | Steering control for vehicle uses electrical linkage, with angle and force sensors detecting movement of two-handled steering wheel |
| CN102795262B (en) * | 2012-08-23 | 2015-09-30 | 浙江吉利汽车研究院有限公司杭州分公司 | Wheel automatic return system |
| DE102013216442B4 (en) * | 2013-08-20 | 2018-06-14 | Volkswagen Aktiengesellschaft | Method and device for optimizing a steering angle in a parking position |
| CN103640638A (en) * | 2013-12-05 | 2014-03-19 | 广西科技大学 | Remote-control spherical vehicle device |
| DE102019105476A1 (en) * | 2019-03-05 | 2020-09-10 | Valeo Schalter Und Sensoren Gmbh | Automatic alignment of a steering device of an at least partially autonomous motor vehicle by a parking assistance system |
| FR3113020B1 (en) * | 2020-07-28 | 2022-08-05 | Jtekt Europe Sas | Assistance system for installing and uninstalling a driver in a vehicle |
| WO2023050145A1 (en) * | 2021-09-29 | 2023-04-06 | 华为技术有限公司 | Method and apparatus for controlling vehicle |
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| JPH10218007A (en) * | 1997-02-05 | 1998-08-18 | Toyota Autom Loom Works Ltd | Advance direction display device |
| DE19716866C1 (en) * | 1997-04-22 | 1998-07-02 | Dieter Willi Reimer | Indicating device for position of steerable wheels on car |
| DE19717796C2 (en) | 1997-04-26 | 1999-03-04 | Zahnradfabrik Friedrichshafen | Power steering with hydraulic power assist |
-
1999
- 1999-04-22 DE DE1999118355 patent/DE19918355A1/en not_active Withdrawn
-
2000
- 2000-03-22 WO PCT/EP2000/002521 patent/WO2000064726A1/en not_active Application Discontinuation
- 2000-03-22 EP EP00916989A patent/EP1173356A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0064726A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000064726A1 (en) | 2000-11-02 |
| DE19918355A1 (en) | 2000-10-26 |
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