Patent ID: 6178368
Filing Date: 2001-01-23
Classification: B60T,B60W

Abstract:
A device for controlling a rolling of a vehicle during a turning, the vehicle having a vehicle body, a pair of front wheels and a pair of rear wheels, a steering system, and a brake system for applying a braking to each wheel of at least one of the front pair and the rear pair of wheels independently of the other of the pair, the device comprising:means for detecting a speed Vx of the vehicle;means for detecting a steeling angle .theta. of the steeling system;means for calculating a turning radius R of the turning based upon at least the steering angle .theta. detected by the steering angle detection means and the vehicle speed Vx detected by the vehicle speed detection means;means for calculating a target roll suppress quantity Qrs so as to be indicative of the degree of need of a roll suppress control;means for calculating a target deceleration Gxt of the vehicle and a target yaw torque Twt of the vehicle as followsGxt=(R/2Vx) QrsTwt=(I/2Vx) Qrswherein I is an inertial yaw moment of the vehicle;means for calculating a slip ratio of each wheel of the at least one pair of front or rear wheels so as to attain the target deceleration Gxy of the vehicle and the target yaw torque Twt of the vehicle; andmeans for operating the brake system so as to accomplish the calculated slip ratio at each wheel of the at least one pair of front or rear wheels.