Suspension system for vehicle
US8116939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | May 1, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2400/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A suspension system for a vehicle, including (a) four displacement force generators (152) each configured to generate a displacement force forcing sprung and unsprung portions of the vehicle toward or away from each other; and (b) a control unit (200) configured to control the displacement force that is to be generated by each displacement force generator. The control unit is capable of executing a plurality of vibration damping controls concurrently with each other, by controlling the displacement force, so as to damp a composite vibration containing a plurality of different vehicle-body vibrations which are to be damped by the respective vibration damping controls. The control unit is configured to refrain from executing at least one of the vibration damping controls for damping one of the vehicle-body vibrations that is not required to be damped, in a low vibration intensity situation in which intensities of sprung-portion resonance-frequency vibration components in respective four sprung portions of the vehicle are lower than a threshold intensity degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.