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Yaw moment control apparatus for vehicle

  • US 5,941,334 A
  • Filed: 04/28/1998
  • Issued: 08/24/1999
  • Est. Priority Date: 04/28/1997
  • Status: Expired due to Fees
First Claim
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1. A yaw moment control apparatus for a vehicle comprising:

  • a left hydraulic pump connected to and rotated by a left wheel;

    a right hydraulic pump connected to and rotated by a right wheel;

    a first oil passage which connects a discharge port of said left hydraulic pump and a suction port of said right hydraulic pump;

    a second oil passage which connects a discharge port of said right hydraulic pump and a suction port of said left hydraulic pump;

    a first variable throttle valve provided between said first oil passage and a tank;

    a second variable throttle valve provided between said second oil passage and said tank;

    first displacement control means for increasing a discharge displacement of said left hydraulic pump according to a closure of said first variable throttle valve;

    second displacement control means for increasing a discharge displacement of said right hydraulic pump according to a closure of said second variable throttle valve; and

    roll angle control means for rolling a vehicle body in one of leftward and rightward directions by using a hydraulic pressure produced by said left hydraulic pump during the closure of said first variable throttle valve, and in the other of the leftward and rightward directions by using a hydraulic pressure produced by said right hydraulic pump during the closure of said second variable throttle valve.

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