The Development of ESP Control System Based on the Fuzzy-PID Control Strategy

摘要

In this paper, the author primarily established the vehicle dynamics model with seven degrees of freedom by MATLAB / Simulink, which could reflect the longitudinal motion, lateral motion and yaw of the vehicle. Under the environment of MATLAB/Simulink, the Fuzzy PID control system based on yaw and sideslip angle is integrated to the 7-DOF vehicle model. With this model, two kinds of emergency double lane change steering condition of the joint control analysis are carried out to check the effects of the control system on the emergency lane change, passing, avoiding obstacles. The results showed that the vehicle stability control system designed can improve vehicle handling and stability, assisting the driver to adapt to various roads and driving conditions, achieve a good effect on the active control, and greatly improve the driving safety.