Patent ID: 6256561
Filing Date: 2001-07-03
Classification: B60T,B62D

Abstract:
A system for controlling steering of vehicle, comprising:an actuator which steers driven wheels of the vehicle;vehicle running condition detecting means for detecting running conditions of the vehicle including at least a turning behavior of the vehicle, a speed of the vehicle and a steering angle of the vehicle;steering torque detecting a means for detecting a steering torque inputted by a driver of the vehicle;road detecting means for detecting a lane boundary which defines a road on which the vehicle is running;road condition information outputting means for outputting information of conditions of the road including at least a curvature of the road;steering angle correcting means for correcting the detected steering angle based on the detected road and the outputted information of the conditions of the road;desired vehicle turning behavior determining means for determining a desired turning behavior of the vehicle based on at least the corrected steering angle and the detected vehicle speed using a preset model;assist torque determining means for determining an error between the desired vehicle turning behavior and the detected vehicle turning behavior and for determining an assist torque for causing the vehicle to run along the road based on the determined error; andmanipulated variable determining means for determining a manipulated variable to be supplied to the actuator based on the determined assist torque.