Suspension control device

Details Suspension control device Suspension control device

1990-05-30

1991-12-17

Rice, Kenneth R.

Land vehicles

Wheeled

Running gear

36442405, B60G 1700

Patent

active

050729659

ABSTRACT:
A suspension control device including a control device for variably controlling a damping force of a suspension to an optimum value by determining a magnitude of acceleration is vertical opposite directions of a vehicle body which magnitude is equal to or greater than a predetermined level and measuring the accumulated duration time of a sprung resonance which is detected by a cycle of vibration of the vehicle body from a timing of the determination of the magnitude. In another aspect, the suspension control device includes a control device for outputting a command for increasing a damping force when a magnitude of acceleration in vertical opposite directions of a vehicle body is determined to be equal to or greater than a predetermined level, and measuring the number of repetitions of a sprung resonance which is detected by measuring a cycle of vibration of the vehicle body from a timing of the determination of the magnitude. The control device maintains the damping force at a high level until the vehicle is stopped and a door open condition is detected.

REFERENCES:
patent: 4696489 (1987-09-01), Fujishiro et al.
patent: 4729580 (1988-03-01), Buma et al.
patent: 4741554 (1988-05-01), Okamoto
patent: 4765648 (1988-08-01), Mander et al.
patent: 4787650 (1988-11-01), Doi et al.

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