System and method for controlling damping force characteristic of shock absorber of vehicle
US5515273A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S280/01
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling a damping characteristic of at least one shock absorber for an automotive vehicle in which, when direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between a sprung mass and an unsprung mass are the same, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is plus) or contraction stroke side (V is minus and Sv is minus) to provide C=.alpha..multidot.V/Sv, and when the direction determining signs of both vertical sprung mass velocity (V) and relative velocity (Sv) between the sprung mass and the unsprung mass are mutually different, the variable control of the damping characteristic C is carried out at either of extension stroke side (V is plus and Sv is minus) or contraction stroke side (V is minus and Sv is plus) to provide C=.alpha..multidot.V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.