Semi-active suspension system with control circuit having a direct control loop including an inverse model of the damper
US6112866A · kind A · utility
47Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/1873
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a semi-active damper controlled by a control circuit including a direct control loop made up of an inverse model of the damper. The inverse model of the damper determines an ideal value for an electrical current i.sub.th for controlling a compression controlled-restriction valve and an expansion controlled-restriction valve on the basis of a measured value for a relative speed y between the two ends of the damper and on the basis of a force reference value Fc. The semi-active damper of the invention is applicable as a transverse secondary suspension for a passenger rail vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.