Patent ID: 8694208

Claim:
A vehicle behavior control apparatus comprising: a deceleration control portion that decelerates the vehicle to reduce a deviation between a target turning index value, and an actual turning index value of the vehicle, the target turning index value being determined based on a steering angle of the vehicle, wherein the deceleration has a first gradient of decrease when a roll motion index value of the vehicle is below a threshold roll motion index value, the deceleration has a second gradient of decrease, that is smaller than the first gradient of decrease, when the roll motion index value of the vehicle exceeds the threshold roll motion index value, the deceleration control portion decelerates the vehicle to reduce the deviation between the target turning index value and the actual turning index value by correcting a target value of the deceleration so as to keep a rate of change in the deceleration per predetermined time period smaller than a predetermined value that is smaller than a rate of change in the deceleration when the roll motion index does not exceed the threshold roll motion index, the target turning index value is at least one value selected from the group consisting of a yaw rate of the vehicle, a wheel angle, and a lateral acceleration, wherein the yaw rate is determined based on the steering angle and a vehicle speed, and the wheel angle is an angle of a left or right wheel of the vehicle, and the actual turning index value is a turning index value that is actually detected or estimated, and which corresponds to the target turning index value of the vehicle.