The drive control system of automobile based on the quadratic stabilization design method

Slip arises during the acceleration of the automobile. As the result, the travel performance leads to an adverse effect because the grip force of the tyre on the road surface is lost. In this paper, we report the drive control system of an automobile by quadratic stabilization for the system, which considers the friction coefficient between the road surface and the tyre as an uncertainty in the controlled object. Generally, the car-body speed is necessary for the drive control of the automobile, but in practice it is impossible to detect the car-body speed in the automobile system. So we perform the simulation using the speed estimated by disturbance observer, in which the road surface friction coefficient is consider as the torque disturbance. The result obtained confirms the effectiveness of the approach.