Proportioning valve assembly for an actively controlled suspensi

Details Proportioning valve assembly for an actively controlled suspensi Proportioning valve assembly for an actively controlled suspensi

1989-01-26

1990-08-14

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

B60F 1700, B60G 1116

Patent

active

049481657

ABSTRACT:
A proportioning valve assembly employs an electromagnetic acuator, such as a proportioning solenoid, associated with a driver circuit. The driver circuit is provided a lead phase circuit for providing a lead phase in supplying a supply current for controlling the valve position of the proportioning valve. Providing appropriate lead time reduces necessity of high gain in attitude change suppression mode operation. Therefore, the response characteristics in pressure adjustment in the shock absorbing mode operation, can be prevented from falling an excessive level.

REFERENCES:
patent: 4185845 (1980-01-01), Misch et al.
patent: 4364574 (1982-12-01), Saito
patent: 4573705 (1986-03-01), Kanai et al.
patent: 4625993 (1986-12-01), Williams et al.
patent: 4720490 (1987-10-01), Yamaguchi et al.
patent: 4801155 (1989-01-01), Fukushima et al.
patent: 4848790 (1989-07-01), Fukunaga et al.
patent: 4865348 (1989-09-01), Hano et al.
patent: 4888696 (1989-12-01), Akatsu et al.

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