Study on the Control of Anti-lock Brake System based on Finite State Machine

The vehicle braking process and working principle of Anti-lock Brake System (ABS) are analyzed. According to the nonlinear ABS brake model and time-varying characteristics, a more accurate ABS hydraulic numerical model is established. Combined with Matlab software, a single wheel vehicle ABS dynamics model is established, which makes the control of vehicle ABS is more close to reality. The ABS hydraulic brake control system is realized by using control strategy based on PID control and finite-state machine method. Through the co-simulation of AMESim and Simulink, the results show that the method could effectively control of ABS, and the simulation process can study the influence of each parameter of hydraulic system, but also it can provide theoretical guidance for the setup of ABS experiment platform, which can shorten the system's development period, and reduce the experiment cost.