Working fluid circuit for active suspension control system of ve

Details Working fluid circuit for active suspension control system of ve Working fluid circuit for active suspension control system of ve

1993-04-15

1994-03-01

Tyson, Karin L.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

280714, B60G 2106, B60G

Patent

active

052900487

ABSTRACT:
A working fluid circuit for an active suspension control system for an automotive vehicle comprises a pressure source unit which provides pressurized working fluid to actuators, associated with wheels respectively, which are operable to suppress attitude change of a vehicle body, pressure control valves associated with the actuators respectively, and check valves located in a by-pass from an output port to a supply port of the pressure control valve, the supply port communicating with the pressure source through a supply line to which the working fluid is supplied from the pressure source, the output port communicating with the actuator through an output line for outputting the working fluid adjusted at a preselected controlled level to the actuator. Each of the check valves is responsive to pressure of the working fluid in the output line which is greater than that in the supply line for feeding back the working fluid in the output line to the supply line for providing a part of pressure supplied to said pressure control valve.

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