Patent ID: 7979189

Claim:
A vehicle behavior control system, comprising: a first drive power control unit that executes a turning control to reduce a turning radius of a vehicle using a drive power difference, which is a difference between a drive power supplied to a right drive wheel and a drive power supplied to a left drive wheel, so that the vehicle is enabled to turn in a smaller radius; and a second drive power control unit that executes a traction control when there is a drive power difference between the right drive wheel and the left drive wheel, in order to reduce the drive power difference, wherein when a vehicle speed is equal to or lower than a predetermined vehicle speed and a steering angle is equal to or larger than a predetermined steering angle, the first drive power control unit applies a braking force to an inner wheel in the turning control, the second drive power control unit determines whether there is a drive power difference between the right drive wheel and the left drive wheel using a wheel that turns at a lower wheel speed as a reference wheel, when the turning control is executed by the first drive power control unit, the traction control executed by the second drive power control unit is restricted by changing a threshold value, at which the second drive power control unit starts the traction control, to a value based on which the traction control is executed less frequently, the second drive power control unit calculates a slip ratio of each of the right drive wheel and the left drive wheel based on a corresponding wheel speed and a speed of the reference wheel, a first slip ratio of each of the right drive wheel and the left drive wheel is a slip ratio at which traction control is executed when the turning control is not being executed, a second slip ratio of each of the right drive wheel and the left drive wheel is higher than the first slip ratio, and the second slip ratio is a ratio at which traction control is executed when turning control is being executed.