Design of vehicle yaw stability controller based on model predictive control

Abstract

Yaw stability of an automotive vehicle in steering maneuver is critical to stability and handling performance of the vehicle. In the paper, a yaw stability controller based on model predictive control is designed in the principle of active differential brake. Implementing a simple 6 DoF linear vehicle model, the proposed controller solves brake torque constraints and overactuated problems in vehicle yaw stability control with the consideration of tire nonlinear characteristics. The simulations on a professional vehicle dynamics tool show the controller could calculate reasonable brake torque of the most efficient wheel in moving horizon manner, and keep the vehicle yaw stability.