Anti-skid Re-adhesion control based on BMC for electric vehicle

The contribution of each wheel to the advance of the vehicle is represented by a mechanical coupling of accumulation element. However, by taking into account the contact wheel-road, a new problem occurs which can be associated with the mechanical coupling, adding to that, the principle of contact which is badly known, nonlinear and no stationary. The whole of these phenomena (mechanical coupling and skidding) will induce different resistive torques for the machines. The problems arising from the mechanical coupling are related to the nonlinear character of the contact wheel-road. The solution of this problem is obtained by using a model control structure adapted well to the nonlinear systems: the behaviour model control (BMC). Therefore, this method is expected to improve the performance of anti skid control. The simulations carried out using Matlab/Simulink showed that the non linear problem of adhesion is solved by the behaviour model control in which the skid phenomenon has completely disappeared and the stability of vehicle is improved.