Traction control for electric vehicles: A novel control scheme

Traction control is critical to avoid loss of control on low-adhesion road surfaces. Electric vehicles have faster torque response derived from the motor, as well as more flexible powertrains with in-wheel motors, which can significantly improve the dynamic control performance. We propose a novel traction control scheme for electric vehicles. A judgment unit of the slip ratio is designed after the error calculation. The driver's handling on the pedal is superimposed on the control output of the slip controller to coordinate the driver's handling. Further, combined feedforward plus feedback control is designed to eliminate the steady error and improve the dynamics. The control performance is evaluated with co-simulation based on ADAMS and MATLAB SIMULINK for high fidelity.