Vehicle suspension system with roll center control

Details Vehicle suspension system with roll center control Vehicle suspension system with roll center control

1997-09-23

1999-12-28

English, Peter C.

Land vehicles

Suspension modification enacted during travel

Riding or suspension height

280 552, 26714012, B06G 702, B06G 1700

Patent

active

060070722

ABSTRACT:
The present invention is directed to a suspension system for a vehicle. The system includes a wheel carrier rotatably supporting a wheel, a strut assembly connecting an upper end of the wheel carrier to a vehicle body, a lower control arm connecting a lower end of the wheel carrier to the vehicle body, and roll center control part for controlling a height of a roll center of the vehicle. The roll center control part includes a hydraulic source for generating hydraulic pressure, a hydraulic bushing disposed between the lower arm and the vehicle body, the hydraulic bushing having upper and lower chambers, first and second hydraulic control valves for controlling hydraulic pressure directed to or exhausted from the upper and lower chambers, respecively, whereby the hydraulic pressure is displaced upward and downward with respect to an axis of the vehicle body, and an electronic control unit for controlling the first and second hydraulic control valves in response to a driving state of the vehicle.

REFERENCES:
patent: 4440254 (1984-04-01), Shibahata et al.
patent: 4687223 (1987-08-01), Miyoshi et al.
patent: 4717175 (1988-01-01), Arai et al.
patent: 5577771 (1996-11-01), Lee
patent: 5725202 (1998-03-01), Nakamura et al.

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