基于半车模型的ABS滑模变结构控制仿真研究

由于汽车轮胎动力学的非线性,对防抱死制动系统采用了滑模变结构控制方法进行控制,滑模控制能较好地解决非线性系统的控制问题,但其固有的抖动会影响控制效果。文章介绍采用一种基于指数趋近律的滑模控制方法,针对两轮车辆的防抱死制动系统设计了滑模控制器,并在Matlab/Simulink里进行了仿真。仿真结果表明了该策略的可行性和有效性,并且能较好的抑制控制系统的抖动现象。

Simulation and Study of Half-vehicle Model Based ABS Sliding Mode Control

A sliding mode based variable structure controller is designed for anti-lock braking system to solve the nonlinearity problem of tyre dynamics.However,the inherent drawback of sliding mode control will affect the control performance.In this paper,the application of sliding control method based on exponential approach law has been introduced. By this method,a sliding mode controller aiming at the anti-lock braking system of two tires has been designed,and has been simulated in Matlab/Simulink.The simulation results show that this strategy is feasible and effective and can properly restrain the chattering phenomenon of the control system.