Vehicle height control system with fail-safe operation for fault

Details Vehicle height control system with fail-safe operation for fault Vehicle height control system with fail-safe operation for fault

1986-05-08

1988-01-12

Love, John J.

Land vehicles

Wheeled

Running gear

280 6R, B60G 1700

Patent

active

047186950

ABSTRACT:
A vehicle height control system has at least two vehicle height sensors which are mounted at points suitable for detecting changes in vehicular profile. Each vehicle height sensor monitors vehicle height at the associated portion of the vehicle and produces a vehicle height indicative signal having a value representative of the vehicle height at the associated portion. The vehicle height control system also has height control means respectively associated with individual suspension systems, each of which is associated with a corresponding vehicle wheel. The height control means is connected to a controller and controlled by means of a control signal selected so as to hold the relative distance between the vehicle body and the vehicular wheels in a given relationship. The controller monitors the output values of the vehicle height sensors so as to detect abnormal output values from one or more of the vehicle height sensors. When the output value of only one of the vehicle height sensors is outside the normal range, the controller simply disables the height control means. On the other hand, when the output values of more than one vehicle height sensor are outside of the normal range, the controller outputs a control signal for lowering the vehicle.

REFERENCES:
patent: 4462610 (1984-07-01), Saito et al.
patent: 4466625 (1984-08-01), Kondo et al.
patent: 4537411 (1985-08-01), Naramoto

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