×

Semi-active suspension system

  • US 8,075,002 B1
  • Filed: 11/18/2008
  • Issued: 12/13/2011
  • Est. Priority Date: 11/18/2008
  • Status: Active Grant
First Claim
Patent Images

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.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×