WO2002034609A1 - Systeme de direction - Google Patents

Systeme de direction Download PDF

Info

Publication number
WO2002034609A1
WO2002034609A1 PCT/EP2001/012263 EP0112263W WO0234609A1 WO 2002034609 A1 WO2002034609 A1 WO 2002034609A1 EP 0112263 W EP0112263 W EP 0112263W WO 0234609 A1 WO0234609 A1 WO 0234609A1
Authority
WO
WIPO (PCT)
Prior art keywords
steering
actuator
electric motor
handwheel
stop
Prior art date
Application number
PCT/EP2001/012263
Other languages
German (de)
English (en)
Inventor
Johannes Kaltenbach
Volker Bachmann
Original Assignee
Zf Friedrichshafen 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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2002034609A1 publication Critical patent/WO2002034609A1/fr

Links

Classifications

    • 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
    • B62D5/006—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 power actuated
    • 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
    • B62D6/007—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits adjustable by the driver, e.g. sport mode
    • 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
    • B62D6/008—Control of feed-back to the steering input member, e.g. simulating road feel in steer-by-wire applications

Definitions

  • the invention relates to a steering system according to the type defined in more detail in the preamble of claim 1.
  • Steering systems that work on the steer-by-wire principle differ from conventional steering systems in that there is no mechanical connection between the steering handwheel and the steered wheel.
  • the torque delivered by the conventional steering systems via the steering column to the steering handwheel is eliminated.
  • the steering feeling previously determined by the road surface, the tires, the chassis and the transmission behavior of the steering system is alternatively generated by a steering wheel actuator.
  • the forces or torques in the steering linkage of the steered wheels, which are detected by one or more force / torque sensors, are forwarded to a central control unit.
  • a steering wheel actuator depending on the respective operating state, provides the driver with a reaction which is similar to that which occurs in a conventional steering system Forces and torques.
  • force / torque sensors in the steering linkage of the steered wheels deliver force signals which are proportional to the steering forces occurring on the steered wheels.
  • the forces / torques that occur are recorded, evaluated by a control unit and forwarded to the steering handwheel actuator for generating torque on the steering handwheel.
  • the steering handwheel actuator is activated in such a way that the rotational resistance or torque curve perceived by the driver corresponds to that which is experienced by a conventional steering system with the same force / torque action in the steering linkage would have been caused.
  • the steering handwheel actuator has at least one electric motor, which, due to the lack of a mechanical connection between the steering handwheel and the steered wheels, is used to produce an artificial steering feel. In this way, at least theoretically, any steering ratio between the steering handwheel and the steered wheels can be represented.
  • DE 36 04 396 C2 is known from the prior art, which describes an electrical servo system in which, when steering near the maximum steering angle, the auxiliary torque generated by an electric motor is reduced in order to avoid damage to the electric motor.
  • the servo system has an electromagnetic clutch device for transmitting the auxiliary torque generated by the electric motor and a reduction gear for transmitting the auxiliary torque generated by the electric motor to the electromagnetic clutch device in order to reduce its speed.
  • Fatigue strength and reliability can be classified as critical.
  • the present invention has for its object to provide a steering system that does not require a mechanical end stop and can be individually adapted to the requirements of different drivers without much effort.
  • the object on which the invention is based is achieved by a generic steering system which also has the characterizing features of the main claim.
  • the steering stop is characterized by a steep increase in the torque gradient on the steering handwheel.
  • the torque on the steering handwheel must increase to the full torque of the electric motor within a maximum angle of rotation of 10 degrees on the steering handwheel.
  • Decisive for the correct implementation of the artificially generated steering stop is a maximum jump in the torque of the steering handwheel at the steering stop and the increase in torque on the steering handwheel within a maximum angle of rotation of 10 degrees on the steering handwheel to the maximum torque of the electric motor.
  • a steering angle is applied to the steering handwheel
  • Target wheel lock set and implemented by a separate actuator on the steered wheel, so that the vehicle follows the steering request specified by the driver and takes the desired direction of travel. If the steering handwheel reaches the artificially generated steering stop, the target wheel lock is not increased even if the steering handwheel is turned further against the increasing resistance of the electric motor. This prevents impermissibly large wheel turning angles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Power Steering Mechanism (AREA)

Abstract

L'invention concerne un système de direction comprenant au moins un actionneur de direction et au moins un actionneur de volant qui sont reliés par un circuit de réglage. L'actionneur de volant présente un volant et au moins un moteur électrique. Le moteur électrique sert non seulement à obtenir une sensibilité au braquage mais aussi à représenter une butée de direction.
PCT/EP2001/012263 2000-10-28 2001-10-24 Systeme de direction WO2002034609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000153714 DE10053714A1 (de) 2000-10-28 2000-10-28 Lenksystem
DE10053714.6 2000-10-28

Publications (1)

Publication Number Publication Date
WO2002034609A1 true WO2002034609A1 (fr) 2002-05-02

Family

ID=7661529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/012263 WO2002034609A1 (fr) 2000-10-28 2001-10-24 Systeme de direction

Country Status (2)

Country Link
DE (1) DE10053714A1 (fr)
WO (1) WO2002034609A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1332946A3 (fr) * 2002-02-05 2004-04-14 Delphi Technologies, Inc. Actionneur pour volant de direction
US7325644B2 (en) 2002-10-11 2008-02-05 Jtekt Corporation Steering control device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221721B4 (de) * 2002-05-16 2011-02-17 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug mit einem Lenksystem sowie einem Anschlag zum Begrenzen des maximalen Einschlagwinkels
JP4425687B2 (ja) * 2004-04-08 2010-03-03 本田技研工業株式会社 操舵装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522924A1 (fr) * 1991-07-12 1993-01-13 Sextant Avionique Actionneur rotatif apte à engendrer sur le volant de manoeuvre d'un système de commande, un couple résistant variable selon une loi adaptative
US5247441A (en) * 1990-09-25 1993-09-21 Honda Giken Kogyo Kabushiki Kaisha Vehicle steering control system
DE19605553C1 (de) * 1996-02-15 1997-08-21 Daimler Benz Ag Lenksystem für mehrspurige Kraftfahrzeuge
DE19842624A1 (de) * 1998-09-17 2000-04-06 Daimler Chrysler Ag Verfahren zum Betreiben eines Lenksystems für ein Fahrzeug

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19820774A1 (de) * 1998-05-08 1999-11-18 Danfoss As Hydraulische Flügelzellenmaschine
DE19834868B4 (de) * 1998-08-01 2007-10-18 Robert Bosch Gmbh Lenkradsteller für die Steer-by-Wire-Anwendung in Kraftfahrzeugen
DE19842627A1 (de) * 1998-09-17 2000-04-06 Daimler Chrysler Ag Lenksystem für ein Fahrzeug
DE19902557A1 (de) * 1999-01-22 2000-07-27 Mercedes Benz Lenkungen Gmbh Redundante Vorrichtung zur Erzeugung von Drehmomenten
DE19902556B4 (de) * 1999-01-22 2008-10-16 Thyssenkrupp Presta Steertec Gmbh Lenkgetrieb mit redundantem Antrieb
DE19908832A1 (de) * 1999-03-01 2000-09-07 Volkswagen Ag Lenkvorrichtung für Fahrzeuge
DE29915559U1 (de) * 1999-09-03 2000-01-13 Trw Fahrwerksyst Gmbh & Co Lenksystem für ein Fahrzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247441A (en) * 1990-09-25 1993-09-21 Honda Giken Kogyo Kabushiki Kaisha Vehicle steering control system
EP0522924A1 (fr) * 1991-07-12 1993-01-13 Sextant Avionique Actionneur rotatif apte à engendrer sur le volant de manoeuvre d'un système de commande, un couple résistant variable selon une loi adaptative
DE19605553C1 (de) * 1996-02-15 1997-08-21 Daimler Benz Ag Lenksystem für mehrspurige Kraftfahrzeuge
DE19842624A1 (de) * 1998-09-17 2000-04-06 Daimler Chrysler Ag Verfahren zum Betreiben eines Lenksystems für ein Fahrzeug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1332946A3 (fr) * 2002-02-05 2004-04-14 Delphi Technologies, Inc. Actionneur pour volant de direction
US6799654B2 (en) 2002-02-05 2004-10-05 Delphi Technologies, Inc. Hand wheel actuator
US7325644B2 (en) 2002-10-11 2008-02-05 Jtekt Corporation Steering control device

Also Published As

Publication number Publication date
DE10053714A1 (de) 2002-05-02

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Legal Events

Date Code Title Description
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

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