Shock absorber damping force control system for vehicle

Details Shock absorber damping force control system for vehicle Shock absorber damping force control system for vehicle

1993-01-14

1994-06-21

Focarino, Margaret A.

Land vehicles

Wheeled

Running gear

36442405, B60G 1708

Patent

active

053223209

ABSTRACT:
A shock absorber damping force control system for a vehicle employs at least a high-frequency component included in sprung mass vibration as a factor to control a damping force of a shock absorber. The system provides a lower damping force of the shock absorber with a larger magnitude of the high-frequency component when signs of a sprung mass velocity and a relative velocity between a sprung mass and an unsprung mass coincide with each other. A low-frequency component may also be employed as a factor to control the damping force of the shock absorber. The system provides a lower damping force with a larger ratio of the high-frequency component relative to the low-frequency component when signs of the sprung mass velocity and the relative velocity coincide with each other.

REFERENCES:
patent: 4696489 (1987-09-01), Fujishiro et al.
patent: 4936604 (1990-06-01), Kawagoe et al.
patent: 5071159 (1991-12-01), Kamimura et al.
patent: 5075855 (1991-12-01), Sugasawa et al.

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