Land vehicles – Wheeled – Running gear
Patent
1989-09-22
1991-07-23
Marmor, Charles A.
Land vehicles
Wheeled
Running gear
36442405, B60G 1700
Patent
active
050337700
ABSTRACT:
An apparatus for controlling an active suspension system for an automotive vehicle comprises hydraulic suspensions, control valves for independently controlling each of the suspensions and a controller for issuing a signal for controlling of opening/closing of the respective control valves. The apparatus includes a longitudinal g sensor for detecting a longitudinal acceleration of a vehicle body and a lateral g sensor for detecting a lateral acceleration of the vehicle. To calculate a control quantity relative to feeding of hydraulic fluid in and discharging of the hydraulic fluid from the respective suspensions required for suppressing pitching and rolling of the vehicle body, the apparatus further includes a control logic which in the controller. A control quantity derived from the circuits is added to another control quantity derived from a vertical g acceleration sensor and a vertical relative displacement sensor, and the resultant control quantity is delivered to the control valve for each suspension.
REFERENCES:
patent: 3124368 (1964-03-01), Corley et al.
patent: 4625993 (1986-12-01), Williams
patent: 4872701 (1989-10-01), Akatsu et al.
Hiwatashi Yutaka
Kamimura Katsuyoshi
Mine Atsushi
Fuji Jukogyo Kabushiki Kaisha
Marmor Charles A.
Tyson Karin
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