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System for controlling active suspensions of a vehicle

  • US 5,144,559 A
  • Filed: 06/18/1990
  • Issued: 09/01/1992
  • Est. Priority Date: 06/22/1989
  • Status: Expired due to Fees
First Claim
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1. A system for controlling active suspensions of a vehicle, having fluid suspensions provided for respective wheels, means for charging and discharging a fluid into and out of the respective fluid suspensions to extend and contract the suspensions independently, a lateral Gsensor provided in the vehicle for detecting lateral acceleration of the vehicle, and a controller responsive to an acceleration signal from the G-sensor for adjusting said charging and discharging means so as to control the amount of the fluid to be charged and discharged to maintain the vehicle attitude in a desired state,said system comprising:

  • means for setting a reference lateral acceleration;

    changeover means for producing a closing signal when the detected lateral acceleration exceeds the reference lateral acceleration; and

    shut-off means responsive to the closing signal for sealing the fluid in the fluid suspensions to change the fluid suspensions from an active state to a passive state.

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