Active suspension system with adaptive actuator gain adjustment

Details Active suspension system with adaptive actuator gain adjustment Active suspension system with adaptive actuator gain adjustment

1992-12-14

1996-05-21

Chin, Gary

Boots, shoes, and leggings

280707, B60K 1100

Patent

active

055196128

ABSTRACT:
An active suspension system uses a closed-loop feedback controller to with tunable feedback gains to produce a control signal which minimizes a cost function formed by the weighted sum of system outputs including body acceleration and wheel displacement error. The feedback gains are adaptively varied by incremental amounts which are calculated based on the "pseudo-sensitivities" of those gains to system outputs, the pseudo-sensitivities being generated by a fixed-gain model of the suspension system and being combined using weighting factors which insure convergence in accordance with the predetermined cost function. The adaptive control provides long-term compensation for varying road conditions, variations from vehicle-to-vehicle, and changes in vehicle performance.

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