×

System for controlling yaw moment based on an estimated coefficient of friction

  • US 5,711,024 A
  • Filed: 06/07/1995
  • Issued: 01/20/1998
  • Est. Priority Date: 11/25/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. Yaw moment control apparatus for improving the driving behavior of an automotive vehicle tending to oversteering or understeering, the vehicle including means for determining a vehicle velocity, a vehicle steering angle, a measured yaw rate, and a vehicle lateral acceleration, said apparatus comprising:

  • yaw control means for generating a value representing a desired yaw rate adjustment based on the vehicle steering angle, the vehicle velocity and the measured yaw rate;

    means for calculating an estimated coefficient of friction based on the vehicle velocity, the lateral acceleration, the measured yaw rate and the steering angle, said estimated coefficient of friction being used by the yaw control means for determining the desired yaw rate adjustment; and

    means, responsible to the vehicle steering angle, for enabling said estimated coefficient of friction determining means only while the vehicle is traveling through a curve.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×