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EP0522109A1 - Direction hydraulique assistee pour automobiles - Google Patents

Direction hydraulique assistee pour automobiles

Info

Publication number
EP0522109A1
EP0522109A1 EP92902441A EP92902441A EP0522109A1 EP 0522109 A1 EP0522109 A1 EP 0522109A1 EP 92902441 A EP92902441 A EP 92902441A EP 92902441 A EP92902441 A EP 92902441A EP 0522109 A1 EP0522109 A1 EP 0522109A1
Authority
EP
European Patent Office
Prior art keywords
pump
steering
motor
housing
power steering
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.)
Ceased
Application number
EP92902441A
Other languages
German (de)
English (en)
Inventor
Wilhelm Beer
Nabil Henein
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.)
ITT Automotive Europe GmbH
Original Assignee
ITT Automotive Europe GmbH
Alfred Teves 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 ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Publication of EP0522109A1 publication Critical patent/EP0522109A1/fr
Ceased legal-status Critical Current

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
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/062—Details, component parts
    • B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
    • 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
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion type

Definitions

  • Hydraulic power steering for motor vehicles consisting of a steering gear with housing, steering shaft and rack, a hydraulic cylinder connected to the rack, a pump and a steering valve which controls the pressure medium flow from the pump to the hydraulic cylinder depending on the actuation of the steering.
  • Such steering systems are installed in many PK's, especially in the luxury class.
  • the individual parts are usually inserted one after the other directly into the body on the assembly line of the automobile manufacturer. After installation, the system is filled with pressure medium, vented and tested. If a defect is found here, the defective parts have to be removed and replaced with great effort, this is expensive, as is the necessary storage by the vehicle manufacturer.
  • the invention is therefore based on the task of producing a fully assembled, tested and filled hydraulic see power steering that meets today's requirements for industrial production, logistical processes and recycling and is also inexpensive.
  • An advantageous development of the invention provides that the pump is driven by an electric motor and that the latter is firmly connected to the pump.
  • pumps driven by internal combustion engines which have to be driven from the crankshaft via a belt and in which the drive belt can only be attached after installation in the vehicle
  • pumps driven by an electric motor can be used together with the motor in the Unit are installed. After installing the unit in the motor vehicle, only a cable connector for powering the engine needs to be connected to the vehicle electrical system.
  • damping elements are attached between the pump and the other parts. are ordered. This measure prevents the vibrations which inevitably occur during operation of the pump from being transmitted to other elements.
  • Sound absorption is particularly effective if the damping elements are attached to the pump housing in the area of vibration nodes.
  • the lowest vibration amplitudes occur in the nodes, so the vibrations are only transmitted relatively weakly at these points anyway.
  • Fig. 1 is a power steering, in which all parts form a unit and
  • Fig. 2 is a damping element, enlarged.
  • the power steering system is shown schematically.
  • the hydraulic cylinder 2 and the toothed rack 3 are located in the housing 1.
  • the steering shaft 4 protrudes from a section 5 of the housing 1.
  • the steering valve 6 is fixedly connected to the housing 1 in front of the steering shaft 4.
  • the motor-pump unit 8 is also fixed to the housing via the pump holder 7 attached to the housing 1
  • control unit On the steering shaft 4 there is a steering angle and / or steering speed sensor (not shown), the output signal of which is fed to a control unit, which is advantageously integrated into the motor-pump unit 8.
  • the control unit is supplied with further signals, such as a signal corresponding to the vehicle speed.
  • the control unit controls the voltage supply to the pump motor, for example via a switch 15 in the electrical connection 16 between the motor-pump unit 8 and the accumulator 17 of the motor vehicle, so that all electrical consumers can be prevented immediately when the ignition key is turned start up. A delay of a few seconds is advisable to avoid a current spike.
  • damping elements 20 and 21 are shown enlarged in FIG.
  • the screw 22 screwed to the motor-pump unit 8 has no direct contact with the pump holder 7, but is only in contact with the damping element 20 or 21.
  • the damping elements 20 and 21 are still surrounded by a sleeve 23 or 24 for stabilization. The arrangement enables almost complete structure-borne noise insulation between the motor-pump unit 8 and the housing 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

L'invention concerne une direction hydraulique assistée pour automobiles, comprenant un mécanisme de direction pourvu d'un boîtier (1), d'un arbre de direction (4) et d'une crémaillère (3), d'un vérin hydraulique (2) relié à la crémaillère (3), d'une pompe et d'une soupape (6), chaque pièce individuelle constituant une unité. Non seulement il est possible, grâce à un tel système, de livrer au fabricant, au moment voulu, des ensembles montés, remplis de fluid de pression, et essayés, mais il est également facile de démonter la direction lorsque le véhicule a déjà été utilisé. La direction assistée selon l'invention est donc bon marché et peut être recyclée, ce qui est favorable à la protection de l'environnement. Les modes de réalisation mentionnés dans les sous-revendications concernent avant tout un système de montage amortissant les bruits, de la pompe ou de l'ensemble moteur/pompe (8) sur le boîter (1) de la direction assistée.
EP92902441A 1991-01-26 1992-01-15 Direction hydraulique assistee pour automobiles Ceased EP0522109A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4102264 1991-01-26
DE4102264A DE4102264C2 (de) 1991-01-26 1991-01-26 Hydraulische Servolenkung für Kraftfahrzeuge

Publications (1)

Publication Number Publication Date
EP0522109A1 true EP0522109A1 (fr) 1993-01-13

Family

ID=6423738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92902441A Ceased EP0522109A1 (fr) 1991-01-26 1992-01-15 Direction hydraulique assistee pour automobiles

Country Status (5)

Country Link
US (1) US5307894A (fr)
EP (1) EP0522109A1 (fr)
JP (1) JPH05505370A (fr)
DE (1) DE4102264C2 (fr)
WO (1) WO1992012887A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7255698B2 (en) 1994-03-28 2007-08-14 Warsaw Orthopedic, Inc. Apparatus and method for anterior spinal stabilization

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4303674A1 (de) * 1993-02-09 1994-08-11 Teves Gmbh Alfred Halterung für Motor-Pumpen-Aggregat
DE59603560D1 (de) * 1995-12-11 1999-12-09 Volkswagen Ag Hilfsrahmen mit einem Leichtmetall-Gussgehäuse einer Zahnstangenlenkung
DE19715808A1 (de) * 1997-04-16 1998-10-22 Bayerische Motoren Werke Ag Zahnstangen-Hydro-Lenkung für Fahrzeuge
US6419042B1 (en) * 2000-10-03 2002-07-16 Trw Inc. Integrated electric power hydraulic steering system
JP2004353786A (ja) * 2003-05-29 2004-12-16 Favess Co Ltd 弾性支持構造およびこれを用いるパワーステアリング装置
JP2006205792A (ja) * 2005-01-25 2006-08-10 Showa Corp 電動舵取補助装置
DE202005006414U1 (de) * 2005-04-21 2005-08-04 Trw Automotive Gmbh Motor-Pumpen-Aggregat, insbesondere für eine Fahrzeug-Servolenkung
US7282875B2 (en) * 2005-08-31 2007-10-16 Caterpillar Inc. System and method for electric motor control
JP5920190B2 (ja) * 2012-11-30 2016-05-18 株式会社デンソー 熱交換器の固定構造
DE102014117301A1 (de) * 2014-11-26 2016-06-02 Robert Bosch Automotive Steering Gmbh Lenksystem für ein kraftfahrzeug

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2931541C2 (de) * 1979-08-03 1986-09-11 O & K Orenstein & Koppel Ag, 1000 Berlin Schaltbare hydraulische Lenkhilfe für ein durch einen Elektromotor angetriebenes Fahrzeug
US4351228A (en) * 1980-07-02 1982-09-28 General Motors Corporation Power assist rack and pinion steering gear
US4409789A (en) * 1980-11-03 1983-10-18 Clark Equipment Company Power steering system
JPS58156857A (ja) * 1982-03-15 1983-09-17 Tokai T R W Kk 回転検出装置
GB2124935B (en) * 1982-07-21 1985-08-14 Cam Gears Ltd A piston and cylinder assembly a power assisted steering gear which includes such an assembly and a method of forming a piston for such an assembly
JPS60201194A (ja) * 1984-03-23 1985-10-11 トヨタ自動車株式会社 流体圧用ホ−ス
JPS6192960A (ja) * 1984-10-11 1986-05-10 Honda Motor Co Ltd 電動式パワ−ステアリング装置
GB2172665B (en) * 1985-02-06 1988-07-27 Aisin Seiki Hydraulic pump assemblies
GB2183778B (en) * 1985-12-06 1989-10-11 Trw Cam Gears Ltd A rack and pinion steering gear assembly
US4673051A (en) * 1986-03-10 1987-06-16 General Motors Corporation Power steering gear with two-way check valve
US4742882A (en) * 1986-03-12 1988-05-10 Honda Giken Kogyo Kabushiki Kaisha Motor-driven power steering device
US4821828A (en) * 1987-06-08 1989-04-18 General Motors Corporation Dynamic absorber for motor vehicle
DE3726979A1 (de) * 1987-08-13 1989-02-23 Opel Adam Ag Hydraulikeinheit fuer ein kraftfahrzeug
DE3743061C1 (en) * 1987-12-18 1989-04-13 Opel Adam Ag Steering boost for motor vehicles
US5141069A (en) * 1988-09-13 1992-08-25 Aisin Seiki Kabushiki Kaisha Steering mechanism with toe-in control
JPH0275375U (fr) * 1988-11-30 1990-06-08
US5096153A (en) * 1990-10-19 1992-03-17 Onan Corporation Shock and vibration mount

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9212887A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7255698B2 (en) 1994-03-28 2007-08-14 Warsaw Orthopedic, Inc. Apparatus and method for anterior spinal stabilization

Also Published As

Publication number Publication date
US5307894A (en) 1994-05-03
DE4102264A1 (de) 1992-07-30
JPH05505370A (ja) 1993-08-12
WO1992012887A1 (fr) 1992-08-06
DE4102264C2 (de) 2003-03-27

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920804

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ITT AUTOMOTIVE EUROPE GMBH

17Q First examination report despatched

Effective date: 19931119

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19950127