Land vehicles – Body elevation or tilt – Establishing riding or trim height
Patent
1981-02-09
1983-02-01
Song, Robert R.
Land vehicles
Body elevation or tilt
Establishing riding or trim height
280 61, 280714, B60G 1308
Patent
active
043711820
ABSTRACT:
A motor vehicle suspension system comprises four hydro-pneumatic struts three of which are provided with sensors to detect variations in length of the struts. A control system is responsive to the sensors and operates valves to add fluid to or remove fluid from struts to maintain the length of these struts constant. The pressure within the fourth strut is controlled so that the proportion of the static roll-torque (caused by off-center loading of the vehicle) which is reacted by the front and rear axles is the same as the proportion of the static weight of the vehicle which is reacted by the front and rear axles respectively. Control of the pressure within the fourth strut is accomplished by a control valve having a valve spool which is subject to the pressures within the four struts.
REFERENCES:
patent: 3778081 (1973-12-01), Takahashi
patent: 3881736 (1975-05-01), Wilfert
patent: 3884496 (1975-05-01), Ito
patent: 3917295 (1975-11-01), Hiruma
Lucas Industries Limited
Song Robert R.
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