Global Patent Index - EP 1989072 A1

EP 1989072 A1 20081112 - HYDRAULIC SYSTEM FOR A VEHICLE SUSPENSION

Title (en)

HYDRAULIC SYSTEM FOR A VEHICLE SUSPENSION

Title (de)

HYDRAULIKSYSTEM FÜR EINE FAHRZEUGAUFHÄNGUNG

Title (fr)

SYSTÈME HYDRAULIQUE POUR UNE SUSPENSION DE VÉHICULE

Publication

EP 1989072 A1 20081112 (EN)

Application

EP 07701575 A 20070302

Priority

  • AU 2007000257 W 20070302
  • AU 2006901051 A 20060302

Abstract (en)

[origin: WO2007098559A1] A hydraulic system for a vehicle suspension for a vehicle has at least one front pitch control ram (11) activated by change in ride height of the front of the vehicle body with respect a forward wheel assembly, and at least one rear pitch control ram (13) activated by a change in ride height of the rear of the vehicle body with respect to a rearward wheel assembly. The front pitch control ram(s) and the rear pitch control ram(s) including at least a compression chamber (45, 46, 47) and a rebound chamber (49, 50, 51). The compression chamber of the front pitch control ram(s) is in fluid communication (53, 54, 59) with the rebound chamber of said at least one rear pitch control ram to provide a front compression volume, and the . compression chamber of the rear pitch control ram(s) is in fluid communication (55, 57, 58) with the rebound chamber of the front pitch control ram(s) to provide a rear compression volume. The hydraulic system provides increased pitch stiffness decoupled from heave stiffness of the suspension system.

IPC 8 full level

B60G 21/067 (2006.01); B60G 21/073 (2006.01)

CPC (source: EP)

B60G 17/016 (2013.01); B60G 17/033 (2013.01); B60G 17/056 (2013.01); B60G 21/06 (2013.01); B60G 21/067 (2013.01); B60G 21/073 (2013.01); B60G 2204/81 (2013.01); B60G 2204/82 (2013.01); B60G 2204/8304 (2013.01)

Citation (search report)

See references of WO 2007098559A1

Designated contracting state (EPC)

DE ES FR GB

DOCDB simple family (publication)

WO 2007098559 A1 20070907; EP 1989072 A1 20081112

DOCDB simple family (application)

AU 2007000257 W 20070302; EP 07701575 A 20070302