Control device for an active fluid suspension system of motor ve

Details Control device for an active fluid suspension system of motor ve Control device for an active fluid suspension system of motor ve

1989-06-08

1990-06-19

Marmor, Charles A.

Land vehicles

Wheeled

Running gear

280707, 280711, B60G 1130, B60G 1704

Patent

active

049347314

ABSTRACT:
An active fluid suspension system has a controller for controlling the delivery and withdrawal of air to and from individual suspension units at vehicle wheels in response to the sensor output signals representing a prescribed set of vehicle behaviors. The controller includes insensitivity zone filters each for filtering out those portions of one sensor output signal of which amplitudes are within an insensitivity zone, thereby avoiding unnecessary fluid flow into and out of the suspension units. The insensitivity zone is defined as a range of amplitudes between given positive and negative values. The filters widen the insensitivity zones with an increase in vehicle speed for optimum suspension control in all vehicle speed ranges.

REFERENCES:
patent: 4655440 (1987-04-01), Eckert
patent: 4765648 (1988-08-01), Mander et al.

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