Semi-active suspension system
First Claim
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1. A suspension system for a vehicle, said suspension system comprising:
- a hydraulic system including;
a plurality of hydraulic actuators;
a plurality of control valves associated with said hydraulic actuators;
a hydraulic pump;
a hydraulic accumulator;
a reservoir; and
a compressible hydraulic fluid in hydraulic communication with said plurality of hydraulic actuators, said plurality of control valves, said hydraulic pump, and said reservoir; and
a controller adapted to process data received from one or more switches or sensors and provide control signals to said control valves according to an algorithm embodied in said controller;
wherein said hydraulic actuators, said hydraulic pump, and said hydraulic accumulator operate at static hydraulic pressures of at least about 5750 psi;
wherein said reservoir operates at a pressure lower than the operating pressure of said hydraulic actuators, said hydraulic pump, and said hydraulic accumulator;
wherein said hydraulic actuators are selectively charged with hydraulic fluid drawn from said reservoir; and
wherein said actuators selectively discharge said hydraulic fluid to said reservoir.
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Abstract
A suspension system for a wheeled vehicle includes hydraulic actuators associated with each of the vehicle'"'"'s wheels, a hydraulic pump, a hydraulic accumulator, a compressible hydraulic fluid, and a hydraulic manifold including control valves that open and close to control the hydraulic fluid flow and pressure to each of the hydraulic actuators. The control valves are regulated by a control system including a processor running an algorithm that receives data from switches and sensors providing information regarding the vehicle'"'"'s state and mode of intended use or storage.
98 Citations
20 Claims
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1. A suspension system for a vehicle, said suspension system comprising:
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a hydraulic system including; a plurality of hydraulic actuators; a plurality of control valves associated with said hydraulic actuators; a hydraulic pump; a hydraulic accumulator; a reservoir; and a compressible hydraulic fluid in hydraulic communication with said plurality of hydraulic actuators, said plurality of control valves, said hydraulic pump, and said reservoir; and a controller adapted to process data received from one or more switches or sensors and provide control signals to said control valves according to an algorithm embodied in said controller; wherein said hydraulic actuators, said hydraulic pump, and said hydraulic accumulator operate at static hydraulic pressures of at least about 5750 psi; wherein said reservoir operates at a pressure lower than the operating pressure of said hydraulic actuators, said hydraulic pump, and said hydraulic accumulator; wherein said hydraulic actuators are selectively charged with hydraulic fluid drawn from said reservoir; and wherein said actuators selectively discharge said hydraulic fluid to said reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification