Patent ID: 7783402

Claim:
A vehicle stability control system of a vehicle having a vehicle body, front and rear wheel suspensions that support the vehicle body, an accelerator and power regulating means for regulating engine power, thereby producing a desired vehicle drive force, the vehicle stability control system comprising: body vibration detection means for detecting a pitching vibration of the vehicle body which occurs during running of the vehicle based on a vehicle body input torque from a quantity sensor; and correction means configured to determine a correction physical quantity corresponding to the pitching vibration detected by the body vibration detection means, and control the power regulating means based at least on the correction physical quantity, wherein the correction means determines a drive force proportion between the engine and the power regulating means based on operation of the accelerator, and corrects a physical quantity corresponding to the drive force proportion based on the correction physical quantity, wherein the power regulating means is a motor generator, and when the motor generator operates as a motor and the correction physical quantity is negative, the correction means subtracts an absolute value of the correction physical quantity from a physical quantity corresponding to a drive force increased by the motor generator, and when the motor generator operates as a generator and the correction physical quantity is positive, the correction means subtracts an absolute value of the correction physical quantity from a physical quantity corresponding to a drive force reduced by the motor generator.