Comparative study on anti-lock braking control strategies based on heavy-duty multi-axle special vehicles

To explore the brake control strategy more suitable for heavy-duty multi-axle special vehicles, a comparative analysis of anti-lock brake system (ABS) control strategies based on heavy multi-axle special vehicles was carried out. Use Matlab/Simulink to build a heavy-duty single-wheel anti-lock control system including dynamics model, slip rate model, tire model, braking model and controller model. The current main control strategies are adopted: no ABS, logic Threshold control, PID control, sliding mode variable structure control, fuzzy PID control and nonlinear active disturbance rejection control are simulated and compared.The research results show that: (1) The comparison of anti-lock braking control strategies for heavy-duty multi-axle special vehicles can be achieved simply and quickly through Matlab/Simulink heavy-duty single-wheel parametric model simulation; (2) Several control strategies have obvious advantages and disadvantages , Needs to be selected according to actual needs; (3) Comprehensive control strategy characteristics and special vehicle requirements, nonlinear auto disturbance rejection control is more suitable for heavy-duty multi-axle special vehicle braking control.