Fluid pressure type active suspension responsive to change of ra

Details Fluid pressure type active suspension responsive to change of ra Fluid pressure type active suspension responsive to change of ra

1990-08-16

1991-12-10

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

280714, 36442405, B60G 1126

Patent

active

050711580

ABSTRACT:
In a fluid pressure type active suspension in a vehicle such as an automobile in which a fluid pressure type actuator supporting a vehicle body from a wheel so as to be able to vary a vehicle height of the vehicle body relative to the wheel in accordance with a fluid pressure supplied in its fluid chamber is operated by a pressure control means which controls the fluid pressure supplied in the fluid chamber of the actuator according to certain control parameters including at least a rate of change of the vehicle height or an acceleration of the vehicle body, the control means is adapted to modify an actual value of the rate of change of the vehicle height or the acceleration of the vehicle body for use in the control of the fluid pressure to be less than the actual value thereof when the rate of change of the vehicle height or the acceleration of the vehicle body is greater than a threshold value therefor.

REFERENCES:
patent: 4647069 (1987-03-01), Iijima
patent: 4717173 (1988-01-01), Sugasawa et al.
patent: 4789935 (1988-12-01), Buma et al.
patent: 4803630 (1989-02-01), Takizawa et al.
patent: 4853860 (1989-08-01), Achenbach
patent: 4924393 (1990-05-01), Kurosawa
patent: 4936604 (1990-06-01), Kawagoe et al.
patent: 4979115 (1990-12-01), Takahashi
patent: 4999777 (1991-12-01), Schussler et al.

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