Front wheel angle control of steering by wire system based on fuzzy adaptive PID algorithm

摘要

Steer by wire system can be free to design steering force transmission characteristics and angular displacement transfer characteristics, which can realize the coordination of portability, the driver steering road feel and handling stability. The dynamics models of steer by wire and vehicle system are established. Control strategy of front wheel angle based on fuzzy adaptive PID control is put forward, and simulation in different working conditions and road test are conducted. The simulation results show that front wheel angle control based on fuzzy adaptive PID can make the system achieve good control stability in different conditions and different road test. The results of this study can provide certain theoretical basis for research and application of steer by wire system.