The Simulation Research of Control Arithmetic for Automobile ABS Based on MATLAB

A new method to develop automobile´s anti-lock braking system is presented under MATLAB software condition. First, a single wheel automobile model and an arrester model are established. Then, several sub modules of anti-lock braking system (ABS) are established, that is slippage rate calculating module, wheel supporting force module, road surface input module and full automobile module. Finally, the ABS simulation model is obtained by connecting above modules according to the braking rule. The best slipping rate is achieved by adjusting the brake moment. Using switch control, PID control and fuzzy control at the whole module, the simulation results show that PID control can achieve the best control result in the way of braking distance, braking time and control stability. This method can help the designer to shorten ABS product development period and guarantee the superior performance.