Patent ID: 8892325
Filing Date: 2014-11-18
Classification: B60T

Abstract:
1. A vehicle motion controller comprising: a vehicle speed acquiring unit configured to acquire a vehicle speed of a vehicle; a vehicle wheel speed acquiring unit configured to acquire wheel speeds of vehicle wheels of the vehicle, respectively; a lateral acceleration acquiring unit configured to acquire an actual lateral acceleration actually generated in the vehicle; an actual slip ratio acquiring unit configured to acquire an actual slip ratio actually generated in the vehicle based on the vehicle speed acquired by the vehicle speed acquiring unit and the vehicle wheel speed acquired by the vehicle wheel speed acquiring unit; a steering angle acquiring unit configured to acquire a steering angle based on a driver's operation; a lateral acceleration calculating unit configured to calculate a steering angle lateral acceleration which is a lateral acceleration corresponding to the steering angle acquired by the steering angle acquiring unit; a mode setting unit configured to set a rolling control mode if the actual lateral acceleration acquired by the lateral acceleration acquiring unit is equal to or greater than a target lateral acceleration at which a roll-suppressing control of suppressing rolling of the vehicle should be performed; a determination unit configured to determine whether the steering angle lateral acceleration calculated by the lateral acceleration calculating unit is less than the target lateral acceleration if the rolling control mode is set by the mode setting unit; and a pressure-increasing prevention unit configured to prevent an increase of a wheel cylinder pressure of the wheel to be subjected to the roll-suppressing control without exiting the rolling control mode based on a determination by the determination unit that the steering angle lateral acceleration is less than the target lateral acceleration.