Hydraulic power steering assistant
US7389848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2003 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Jun 6, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0835
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention generally relates to an improvement of conventional Hydraulically Power Assisted Steering system (HPAS-system) arranged to supply a steering assist force to the steering assembly of a vehicle as a response to a torque applied by a driver to the steering wheel. In such HPAS-systems a certain drivers torque always results in a certain assist force. The invention therefore discloses a valve that can be actuated to dynamically alter the steering assist force produced by the HPAS-system. This makes it possible to dynamically adjust the assist force so that an appropriate force may be delivered to fit the specific driving scenario.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.