Patent ID: 8116942
Filing Date: 2012-02-14
Classification: B62D

Abstract:
1. A steering angle control apparatus for a vehicle, which controls a steering angle of front wheels and rear wheels for a vehicle at which a slip restraining control for adjusting a longitudinal force of at least one of the wheels is executed in order to restrain a slip of the wheel and a μ split control is executed for executing the slip restraining control during the time the vehicle travels on a μ split road having different frictional coefficients at a portion of the road on which at least one of left side wheels rotates and a portion of the road on which at least one of right side wheels rotates, comprising: a first calculating unit for calculating the longitudinal force; a second calculating unit for calculating a longitudinal force difference between said at least one of the right side wheels and said at least one of the left side wheels based on the longitudinal force; a third calculating unit for calculating a contribution rate of the front wheels at the steering angle control and a contribution rate of the rear wheels at the steering angle control; a fourth calculating unit for calculating a front wheel correction steering angle and a rear wheel correction steering angle based on the contribution rate of the front wheel, the contribution rate of the rear wheel, and a state quantity including the longitudinal force difference; and a driving unit for outputting a control command value based on the front wheel correction steering angle and the rear wheel correction steering angle.