Suspension control apparatus
US5924703A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1997 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Dec 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2600/187
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a suspension control apparatus including dither amplitude setting device which is adapted to set the amplitude of the dithering current to be superimposed on the command current is set to a small value in a region in which a damping force generated by the shock absorber changes at a high rate relative to changes in intensity of the current applied to the solenoid. The present invention also provides a suspension control apparatus including dither frequency setting device which is adapted to set the frequency of the dithering current to a high frequency in a region in which a damping force generated by the shock absorber changes at a high rate relative to changes in intensity of the current applied to the solenoid and set the frequency of the dithering current to a low frequency in a region other than the above-mentioned region. The suspension control apparatus of the present invention prevents generation of undesirable noise and vibration while suppressing an increase in hysteresis with respect to a damping force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.