Global Patent Index - EP 0969999 A1

EP 0969999 A1 2000-01-12 - METHOD FOR CONTROLLING ELECTROHYDRAULIC POWER STEERING

Title (en)

METHOD FOR CONTROLLING ELECTROHYDRAULIC POWER STEERING

Title (de)

VERFAHREN ZUM STEUERN EINER ELEKTROHYDRAULISCHEN SERVOLENKUNG

Title (fr)

PROCEDE DE COMMANDE D'UNE DIRECTION ASSISTEE ELECTROHYDRAULIQUE

Publication

EP 0969999 A1 (FR)

Application

EP 98917256 A

Priority

  • FR 9800628 W
  • FR 9703858 A

Abstract (en)

[origin: FR2761329A1] The invention concerns a method for controlling a motor vehicle power steering, consisting of an electropump unit (9) electronically controlled and comprising a hydraulic circuit with flexible pipes (5), such that, during a transitory phase, when the steering is stressed and the unit (9) serviceable voltage (Um) shifts from a stand-by value (Umin) to a maximum value (Umax), and when the pipes (5) are inflated this serviceable voltage (Um) whether progressively or not decreases to an optimal value (Uop) providing the steering power up to a maximum speed threshold ( OMEGA 1) of the motor vehicle steering wheel, before resuming its stand-by value (Umin) when the vehicle is no longer stressed.

IPC 1-7 (main, further and additional classification)

B62D 5/06

IPC 8 full level (invention and additional information)

B62D 5/065 (2006.01)

CPC (invention and additional information)

B62D 5/065 (2013.01)

Citation (search report)

See references of WO 9843866A1

Designated contracting state (EPC)

DE ES GB IT

EPO simple patent family

FR 2761329 A1 19981002; FR 2761329 B1 19990521; EP 0969999 A1 20000112; WO 9843866 A1 19981008

INPADOC legal status


2003-09-03 [18W] APPLICATION WITHDRAWN

- Effective date: 20030707

2002-08-21 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: RENAULT S.A.S.

2000-03-01 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: OUVRY, ERIC

2000-03-01 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: SAINT-MARTIN, PHILIPPE

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991028

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES GB IT