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Shock absorber control apparatus

  • US 5,060,157 A
  • Filed: 04/10/1990
  • Issued: 10/22/1991
  • Est. Priority Date: 04/13/1989
  • Status: Expired due to Fees
First Claim
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1. A shock absorber control apparatus for controlling a damping force of a shock absorber provided at a vehicle, comprising:

  • detecting means for detecting a running condition of said vehicle, wherein said running condition is detected based upon data derived from a sensor for detecting a steering angle of said vehicle, a sensor for detecting a speed of said vehicle, a sensor for detecting a vertical acceleration of said vehicle, a sensor for detecting whether or not braking operation is carried out for said vehicle, and a sensor for detecting an opening speed of a throttle of said vehicle;

    means for estimating a value of a fuzzy variable on the basis of the running condition detected by said detecting means;

    fuzzy inference means for performing a fuzzy inference corresponding to a fuzzy rule between a membership function of said fuzzy variable and a membership function using the damping force as the fuzzy variable, thereby deciding the damping force of said shock absorber; and

    means for controlling the damping force of said shock absorber corresponding to the damping force decided by said fuzzy inference means, said damping force being decided by a center of gravity of a logical sum of said membership functions.

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