Adjustable hydropneumatic active suspension apparatus

Details Adjustable hydropneumatic active suspension apparatus Adjustable hydropneumatic active suspension apparatus

1985-05-20

1987-10-20

Love, John J.

Land vehicles

Wheeled

Running gear

280708, 364424, B60G 1706

Patent

active

047009713

ABSTRACT:
An active suspension apparatus detects an absolute acceleration Z in a passenger's compartment of a vehicle and a relative displacement X between an axle and a body, calculates an absolute value .vertline.Z.vertline. of the absolute acceleration, an absolute value .vertline.X.vertline. of the relative displacement and an absolute value .vertline.X.vertline. of a rate X of change in relative displacement, multiplies the absolute values .vertline.X.vertline., .vertline.X.vertline., and .vertline.Z.vertline. with coefficients A11, A12 and A13, and adding the resultant product to obtain a sum Y=A11.vertline.X.vertline.+A12.vertline.X.vertline.+A13.vertline.Z.vertlin e., compares the sum Y with a reference value C for evaluating the predetermined movement of the vehicle, and controls the damping forces of the hydropneumatic springs, thereby improving steering stability and riding comfort.

REFERENCES:
patent: 3124368 (1964-03-01), Corley
patent: 4589676 (1986-05-01), Meloche
Article from Mar. 1984 issue of "Auto World", written by Alan Baker.

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