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Suspension control system

  • US 5,701,245 A
  • Filed: 10/06/1995
  • Issued: 12/23/1997
  • Est. Priority Date: 10/07/1994
  • Status: Expired due to Term
First Claim
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1. A suspension control system for controlling suspension means disposed between a mass body and a support base of a vehicle for supporting said mass body on said support base;

  • said system comprising;

    control means for varying and controlling a damping force of said suspension means according to a velocity ratio of a velocity of said mass body in a vertical direction to a relative velocity of said mass body and said support base in said vertical direction, said control means comprising;

    vehicle speed detection means for detecting a speed of said vehicle;

    an actuator for causing said damping force in response to a driving signal, said actuator varying said damping force at a rate corresponding to a driving frequency of said driving signal; and

    frequency reduction means for, when said damping force is varied and controlled according to said velocity ratio, decreasing said driving frequency of said driving signal in response to said vehicle speed detected by said vehicle speed detection means to provide a lower driving frequency at a lower vehicle speed.

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