Research on Control Algorithm for DYC and Integrated Control with 4WS

The best advantage of the DYC is it can greatly improve vehicle handling and stability. It is proposed integrated control of four wheel steering systems (4WS) and direct yaw moment control. A desirable vehicle model is established with the best performance of side slip angle and yaw rate. The strategy of both the forward controller and feedback controller of tracking the desirable model is adopted and an optimal controller is designed. By the simulation, it is compared to only DYC and integrated control of 4WS and DYC. The simulation results indicated that integrated control could effectively control side slip angle and yaw rate tracking the desirable value.