Apparatus for controlling vehicle spring firmness
US4655440A · kind A · utility
153Cited by
19References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Feb 12, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2500/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for controlling the spring firmness of a road vehicle is proposed, which is combined with a control of the shock absorber firmness. Both controls are preformed using a single control valve. Trigger signals for the control valve are ascertained by an electronic device, which receives its signals from sensors, disposed on the vehicle, for spring travel, acceleration, vehicle speed and steering angle or the like, and in particular for a travel sensor which picks up the shock absorber compression and emits it as a signal to the electronic device, whereby changes in spring stiffness are achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.