基于模糊PID的路感控制策略研究OA

To meet the real-time road feel simulation and feedback requirements of the steer-by-wire sys-tem,this study proposes a road feel control strategy based on a fuzzy PID algorithm.First,a full vehicle model of the steer-by-wire system is established using Simulink and CarSim,providing the foundation for subsequent research.Next,dynamic analysis is employed to calculate the force conditions during the ve-hicle's steering process,thereby obtaining the target road feel torque.Then a fuzzy PID controller is es-tablished based on fuzzy rules to ensure accurate output of the road feel torque.Finally,joint simulation verification was conducted using CarSim and Simulink.The results show that the designed fuzzy PID road feel control strategy enables the steer-by-wire system to replace the mechanical steering system.Compared with the traditional PID control algorithm,the fuzzy PID controller more effectively feeds back the road feel information,ensuring the light steering at low speeds while maintaining clear road feedback at high-speed steering.