Acceleration-to-torque ratio based anti-skid control for electric vehicles

Anti-skid control for electric vehicles has attracted the attention of many researchers over the past years. Most of the approaches proposed need to measure or estimate the vehicle velocity to calculate the slip ratio. In this paper, an approach based on the ratio of wheel acceleration to motor torque for electric vehicle anti-skid control is proposed. Instead of the vehicle velocity, only two easily measured parameters for electric vehicles, wheel acceleration and motor torque, are used to estimate the slip level. Two types of controllers, a rules-based controller and a fuzzy logic controller are designed for the vehicle anti-skid control. Simulation results show that both of them can successfully prevent vehicle skidding.