Anti-slip control of electric vehicles based on disturbance observer and PID controller

If an electric vehicle has slip phenomenon in a longitude motion, the output torque of the motor must be limited to anti the slip. This paper proposes an anti-slip control strategy composed with a torque limiter and PID controller. The PID controller is used to improve the performance of drive and antislip system. The relationships between the adhesion coefficient and slip ratio are discussed by magic formula. Simulation models are constructed in Matlab/Simulink surrounding. Simulations are carried out and simulation results verify the effectiveness of this anti slip control for the electric vehicle.