Steering system with ability to stop steering wheel rotation
US6560961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Sep 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/097
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A full fluid-linked steering system includes a fluid pump (11), a fluid controller (19), a steering actuator (17), an electro-hydraulic compensation valve (21), and a vehicle microprocessor (23). Downstream of the fluid pump (11) is a load sensing priority flow control valve (15) having both a controlled flow outlet port (CF) and an excess flow outlet port (EF). The excess flow outlet port (EF) communicates with an inlet port (35) of the fluid controller (19), while the controlled flow outlet port (CF) communicates with a fluid inlet (63) of the compensation valve (21). As a result, when the steering actuator (17) is at the end of its travel, pressure will be communicated only through the compensation valve (21), and the operator will be unable to turn the steering wheel further in the same direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.