Hydraulic circuit for actively controlled automotive suspension system with fail-safe system
US5013061A · kind A · utility
16Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Jan 26, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An an actively controlled suspension system includes a fail-safe system which is associated with a pressure control valve and detective of failure of a control circuit to perform fail-safe operation. The fail-safe system operates the pressure control valve in response to failure of the control circuit, to fix the valve position corresponding to a working fluid pressure in a working chamber defined in a suspension cylinder disposed between a vehicular body and a suspension member rotatably supporting a vehicular wheel, at a pressure value at or in the vicinity of a predetermined initial or neutral pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.