Electronic controlled fluid suspension system for controlling ro

Details Electronic controlled fluid suspension system for controlling ro Electronic controlled fluid suspension system for controlling ro

1988-09-02

1990-01-30

Chin, Gary

Boots, shoes, and leggings

280707, 280703, B60G 1700

Patent

active

048977764

ABSTRACT:
In controlling roll and pitch of a vehicle body responsive to a displacement signal produced at each wheel of the vehicle, each signal is low-pass-filtered with a certain threshold frequency to prevent hunting of the control due to an excessively high frequency component (such as noise or a component corresponding to road irregularities) of the signal. According to this invention, the threshold frequency is changed to a higher value in order to get quick attitude control when the roll or pitch of the body is expected, while it is set at a lower value when no such attitude change is expected in order to prevent hunting of the control.

REFERENCES:
patent: 4749210 (1988-06-01), Sugasawa et al.
patent: 4765649 (1988-08-01), Ikemoto et al.
patent: 4770438 (1988-09-01), Sugasawa et al.
patent: 4787649 (1988-11-01), Watanabe et al.

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