Apparatus for adjusting vehicle body height

Details Apparatus for adjusting vehicle body height Apparatus for adjusting vehicle body height

1991-06-11

1992-08-25

Marmor, Charles A.

Land vehicles

Wheeled

Running gear

36442405, B60G 17015

Patent

active

051412454

ABSTRACT:
An apparatus for adjusting a body height of a vehicle by supplying or discharging air into or from an air suspension system includes a controller for controlling a vertical vehicle body height to a predetermined set value responsive to a signal according to an adjustment amount of the vehicle body height obtained by subtracting an objective reference vehicle body height signal from a relative displacement signal. The apparatus further includes vehicle body height change control means connected to the controller for variably controlling a vehicle body height adjustment completion time and a vehicle body height adjusting speed responsive to the vehicle speed. The vehicle body height change control means comprises a sensor for detecting the vehicle speed and generating a signal according to the vehicle speed and a logic circuit for variably controlling the vehicle body height adjusting time and the vehicle body height adjusting speed such that when the vehicle speed signal indicates a high value, the vehicle body height adjusting time is lengthened or the vehicle body height adjusting speed is lowered and when the vehicle speed signal indicates a low value, the vehicle body height adjusting time is shortened or the vehicle body height adjusting speed is increased.

REFERENCES:
patent: 2882068 (1959-04-01), Faiver
patent: 4364574 (1982-12-01), Saito
patent: 4611815 (1986-09-01), Sasage et al.
patent: 4625994 (1986-12-01), Tanaka et al.
patent: 4848790 (1989-07-01), Fukunaga et al.
patent: 4887840 (1989-12-01), Harara et al.

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