Suspension control system

Details Suspension control system Suspension control system

1994-03-03

1996-06-04

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188319, 280707, F16F 946

Patent

active

055224822

ABSTRACT:
A suspension control system has a relative displacement sensor for detecting a relative velocity between a vehicle body and a wheel, and a controller which sets a relatively large value as a damping coefficient for the extension stroke of a hydraulic shock absorber, which is provided between the vehicle body and the wheel, when the magnitude of the relative velocity in the direction of the extension stroke exceeds a preset reference value, with priority to control based on the absolute velocity of the vehicle body. When the magnitude of the relative velocity between the vehicle body and the wheel in the direction of the extension stroke exceeds the reference value during running of the vehicle, for example, due to falling of the wheel into a depression, the damping coefficient for the extension stroke is set at a relatively large value with priority to the control based on the absolute velocity. Accordingly, when the wheel falls into a depression, occurrence of full bounce is prevented. Thus, the ride quality is improved.

REFERENCES:
patent: 4936425 (1990-06-01), Boone
patent: 5242190 (1993-09-01), Morris
patent: 5310027 (1994-05-01), Nakamura
patent: 5324066 (1994-06-01), Masumura
patent: 5324067 (1994-06-01), Kallenbach
patent: 5384706 (1995-01-01), Uchiyama

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