Automatic level control system for automotive vehicle with fail-safe system therefor
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United States of America Patent
Stats
-
Apr 21, 1987
Grant Date -
N/A
app pub date -
Nov 6, 1985
filing date -
Dec 20, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automotive height control system for an automotive vehicle includes an actuator disposed within a vehicle suspension system for adjusting the vertical dimension between a vehicle body and a wheel axle. The actuator is connected to a controller to receive a control signal which orders adjustment of the vehicle height. The height control system further includes a damping characteristics controller cooperative with the actuator for adjusting damping characteristics of the suspension system according to the vehicle height. In addition, the system is provided with a vehicle height sensor which monitors the height of the vehicle from the road surface and provides a vehicle height indicative signal. A fail-safe system detects abnormal height conditions as indicated by the vehicle height indicative signal to produce a fail-safe signal. The actuator and the damping characteristics controller respond to the fail-safe signal by equalizing their internal pressures.
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