基于MATLAB的制动防抱死自调节门限值控制

为了在制动防抱死仿真研究中取得良好的控制效果,逻辑门限值控制方法中的最佳门限值会随着车速和路面附着系数的情况变化而变化。以研究自调节门限值的控制方式为目的,在MATLAB软件中创建了双轮三自由度车辆模型以及有效的逻辑门限值控制策略。在不同车速及不同附着系数的路面进行了仿真试验,并且选取车轮滑移率和车轮速2个重要参数进行考察,通过对最佳滑移率持续时间以及车轮的转动稳定性分析,验证了该自调节门限值控制的有效性。

Anti-lock Braking Self-adjustment Logic Gate Limiting Value Control based on MATLAB

In order to get good control effects in anti-braking simulation study, the logic gate of logic gate limiting value control will be changed with the change of speed and road adhesion coefficient. The vehicle model with wheeled three de- grees of freedom and effective logic gate limiting value control strategy were created in MATLAB for research on self-adjust- ment logic gate control. Simulation tests were carried out for multiple speeds of cases and variety of road adhesion coeffi- cient. Did simulation tests under different vehicle speed and different adhesion coefficient, and did observation selecting two important parameters, which were slip rate and wheel speed, through the analysis of duration of best slip rate and stability of wheel rotation, testified the effectiveness of self-adjustment logic gate limiting control.