Vehicle height control system

Details Vehicle height control system Vehicle height control system

1992-08-28

1994-02-22

Focarino, Margaret A.

Land vehicles

Wheeled

Running gear

280714, 280 612, 267 6416, B60G 1704

Patent

active

052881024

ABSTRACT:
A compact vehicle height control system is capable of changing the spring constant of gas springs to thereby control the vehicle attitude stabilizing characteristics so as to provide a comfortable vehicle ride. Pilot-controlled directional control valves are interposed in passages that connect first and second gas springs in parallel. When the pilot-controlled directional control valves are opened, the first and second gas springs are communicated with respective cylinders in parallel, whereas, when the directional control valves are closed, only the first gas springs are communicated with the cylinders, thereby changing the spring constant. The pilot-controlled directional control valves are hydraulically operable, thereby eliminating solenoid operated valves.

REFERENCES:
patent: 2885202 (1959-05-01), Trumper
patent: 3945664 (1976-03-01), Hiruma
patent: 4664410 (1987-05-01), Richard
patent: 5141244 (1992-08-01), Clotault et al.

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