Method of controlling damping force of damper

Details Method of controlling damping force of damper Method of controlling damping force of damper

1987-02-20

1988-09-27

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

188299, B60G 1700, B60G 1706

Patent

active

047736712

ABSTRACT:
The damping force of a damper on a motor vehicle is automatically controlled dependent on the running condition of the motor vehicle and the road condition in which the motor vehicle travels. An acceleration of vertical vibration of the motor vehicle body is detected by a sensor, and a binary pulse signal indicative of a variation in the acceleration is produced. Then, a first signal is generated on the basis of whether the pulse duration of the binary pulse signal is at least a prescribed value or smaller than the prescribed value. Thereafter, a second signal is produced indicating the magnitude of the absolute value of the acceleration. Finally, the damping force of the damper is selectively adjusted to hard, normal, and soft settings based on a combination of the first and second signals.

REFERENCES:
patent: 4655440 (1987-04-01), Eckert
patent: 4666180 (1987-05-01), Shirakuma
patent: 4678203 (1987-07-01), Rohner et al.
patent: 4682675 (1987-07-01), Eddy, Jr.
patent: 4691284 (1987-09-01), Izumi et al.

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