DE102005030259A1 - Electrohydraulic by-wire steering system for vehicle, has hydraulic pump motor supplied with hydraulic medium in normal operation of hydraulic pump by hydraulic control block in sense of generation of specific hand moment at steering handle - Google Patents
Electrohydraulic by-wire steering system for vehicle, has hydraulic pump motor supplied with hydraulic medium in normal operation of hydraulic pump by hydraulic control block in sense of generation of specific hand moment at steering handle Download PDFInfo
- Publication number
- DE102005030259A1 DE102005030259A1 DE200510030259 DE102005030259A DE102005030259A1 DE 102005030259 A1 DE102005030259 A1 DE 102005030259A1 DE 200510030259 DE200510030259 DE 200510030259 DE 102005030259 A DE102005030259 A DE 102005030259A DE 102005030259 A1 DE102005030259 A1 DE 102005030259A1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic
- hydraulic pump
- steering
- pump motor
- normal operation
- 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- Withdrawn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
-
- 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
- B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
- B62D5/32—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means for telemotor systems
-
- 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
- B62D5/003—Backup systems, e.g. for manual steering
-
- 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
- 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
- B62D5/065—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
Description
Die
Erfindung betrifft ein elektrohydraulisches Lenksystem eines Kraftfahrzeugs
mit hydraulischer Rückfallebene,
bei dem im Normalbetrieb zumindest ein hydraulischer Stellzylinder
zur Positionierung eines lenkbaren Rades oder mehrerer lenkbarer
Räder mit
von einer Hydraulikpumpe gefördertem
Hydraulikmedium über
eine von einer elektronischen Steuereinheit unter Berücksichtigung
des Fahrer-Lenkwunsches geeignet angesteuerte Ventileinheit beaufschlagt
wird, während
im Notbetrieb ein mit der Lenkhandhabe des Fahrers mechanisch gekoppelter
hydraulischer Pumpmotor den Hydraulikdruck zur Beaufschlagung des
oder der gleichen hydraulischen Stellzylinder(s) dem Lenkwunsch
des Fahrers entsprechend erzeugt. Zum bekannten Stand der Technik
wird insbesondere auf die
Wie
u.a. in der erstgenannten
Ein
im Grundprinzip ähnliches,
jedoch hinsichtlich des Aufbaus komplizierteres System zeigt die
Schließlich sei
noch auf die
Für ein elektrohydraulisches Lenksystem nach dem Oberbegriff des Anspruchs 1 soll nun eine weitere Verbesserung aufgezeigt werden. Die Lösung dieser Aufgabe ist dadurch gekennzeichnet, dass der Pumpmotor im Normalbetrieb von einer Hydraulikpumpe über einen geeignet angesteuerten hydraulischen Steuerblock im Sinne einer Erzeugung eines gezielten Handmoments an der Lenkhandhabe mit Hydraulikmedium beaufschlagt wird.For an electrohydraulic Steering system according to the preamble of claim 1 is now another Improvement are shown. The solution to this problem is thereby characterized in that the pump motor in normal operation of a hydraulic pump via a suitably controlled hydraulic control block in the sense of a Generation of a targeted manual torque on the steering handle with hydraulic medium is charged.
Zur
Erläuterung
wird auf die beiden beigefügten
Prinzipskizzen verwiesen, wobei
Mit
der Bezugsziffer
Wie
ersichtlich ist jedem lenkbaren Fahrzeug-Rad
Mit
einem soweit beschriebenen Lenksystem erhält der Fahrer an seinem Lenkrad
In
Mit
einem entsprechend gestalteten elektrohydraulischen Lenksystem ist
somit mit geringem Aufwand ein äußerst zuverlässiges und
dabei einfach und kostengünstig
aufgebautes „steer-by-wire"-Konzept realisiert,
wobei noch darauf hingewiesen sei, dass durchaus eine Vielzahl von
Details abweichend von obigen Ausführungen gestaltet sein kann,
ohne den Inhalt des Patentanspruchs zu verlassen. So kann insbesondere
auch nur ein einziger hydraulischer Stellzylinder zur Positionierung
der beiden lenkbaren Fzg.-Räder
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510030259 DE102005030259A1 (en) | 2005-06-29 | 2005-06-29 | Electrohydraulic by-wire steering system for vehicle, has hydraulic pump motor supplied with hydraulic medium in normal operation of hydraulic pump by hydraulic control block in sense of generation of specific hand moment at steering handle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510030259 DE102005030259A1 (en) | 2005-06-29 | 2005-06-29 | Electrohydraulic by-wire steering system for vehicle, has hydraulic pump motor supplied with hydraulic medium in normal operation of hydraulic pump by hydraulic control block in sense of generation of specific hand moment at steering handle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005030259A1 true DE102005030259A1 (en) | 2007-01-18 |
Family
ID=37563287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510030259 Withdrawn DE102005030259A1 (en) | 2005-06-29 | 2005-06-29 | Electrohydraulic by-wire steering system for vehicle, has hydraulic pump motor supplied with hydraulic medium in normal operation of hydraulic pump by hydraulic control block in sense of generation of specific hand moment at steering handle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005030259A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988004A3 (en) * | 2007-05-03 | 2011-12-21 | JCB Landpower Ltd | Hydrailc vehicle steering system |
CN103625532A (en) * | 2012-08-20 | 2014-03-12 | 绵阳师范学院 | Automobile steering-by-wire system for achieving aligning and road feel based on fluid power |
EP2801509A3 (en) * | 2013-05-08 | 2015-07-08 | STILL GmbH | Mobile work machine, in particular industrial truck, with an electric steering assembly |
EP3053806A1 (en) * | 2014-12-05 | 2016-08-10 | Robert Bosch GmbH | Steering drive and steering system for a vehicle |
EP4279358A1 (en) * | 2022-05-19 | 2023-11-22 | Arnold NextG GmbH | Steering input device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19546942C1 (en) * | 1995-12-15 | 1997-06-19 | Daimler Benz Ag | Hydraulic power steering |
DE19801393C1 (en) * | 1998-01-16 | 1999-07-15 | Daimler Chrysler Ag | Steering system |
DE10040870A1 (en) * | 1999-08-30 | 2001-05-31 | Trw Fahrwerksyst Gmbh & Co | Steering system for motor vehicle |
DE10061383A1 (en) * | 2000-12-09 | 2002-01-17 | Bosch Gmbh Robert | Self-centering hydraulic back-up level for steer-by-wire steering systems for motor vehicles has manual actuator and steering adjuster with hydraulically connected connections and working chambers |
DE10060374A1 (en) * | 2000-12-07 | 2002-06-27 | Bosch Gmbh Robert | Steer-by-wire steering with hydraulic feedback actuator |
-
2005
- 2005-06-29 DE DE200510030259 patent/DE102005030259A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19546942C1 (en) * | 1995-12-15 | 1997-06-19 | Daimler Benz Ag | Hydraulic power steering |
DE19801393C1 (en) * | 1998-01-16 | 1999-07-15 | Daimler Chrysler Ag | Steering system |
DE10040870A1 (en) * | 1999-08-30 | 2001-05-31 | Trw Fahrwerksyst Gmbh & Co | Steering system for motor vehicle |
DE10060374A1 (en) * | 2000-12-07 | 2002-06-27 | Bosch Gmbh Robert | Steer-by-wire steering with hydraulic feedback actuator |
DE10061383A1 (en) * | 2000-12-09 | 2002-01-17 | Bosch Gmbh Robert | Self-centering hydraulic back-up level for steer-by-wire steering systems for motor vehicles has manual actuator and steering adjuster with hydraulically connected connections and working chambers |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988004A3 (en) * | 2007-05-03 | 2011-12-21 | JCB Landpower Ltd | Hydrailc vehicle steering system |
CN103625532A (en) * | 2012-08-20 | 2014-03-12 | 绵阳师范学院 | Automobile steering-by-wire system for achieving aligning and road feel based on fluid power |
CN103625532B (en) * | 2012-08-20 | 2016-01-13 | 绵阳师范学院 | A kind of based on fluid power realize back just with the automobile steer-by-wire system of road feel |
EP2801509A3 (en) * | 2013-05-08 | 2015-07-08 | STILL GmbH | Mobile work machine, in particular industrial truck, with an electric steering assembly |
EP3053806A1 (en) * | 2014-12-05 | 2016-08-10 | Robert Bosch GmbH | Steering drive and steering system for a vehicle |
EP4279358A1 (en) * | 2022-05-19 | 2023-11-22 | Arnold NextG GmbH | Steering input device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20120630 |