Patent · US Active

Hydraulic power steering

US7735595B2 · kind B2 · utility

2Cited by

4References

18Claims

0Family size

Assignee

ZF Lenksysteme GmbH · DE

Inventors

Walter Kogel · Abtsgmünd, DE
Andreas Braun · San Diego, US

Key dates

Filing date	Jan 17, 2007
Grant date	Jun 15, 2010
Priority date	—
Expiry date	Apr 20, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB62D5/063
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hydraulic power steering system for a vehicle includes a first, hydraulic actuator for making available steering power or auxiliary steering power for adjusting the steering angle of one or more steered wheels of the vehicle, and with a second electric actuator for making available a steering power or auxiliary steering power for adjusting the steering angle of the steered wheel. For a power steering system, for which the power dissipated is reduced and the operating temperature lowered, the first hydraulic actuator can be taken out of operation while the vehicle is being driven as a function of the trip and/or vehicle parameters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.