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基于Matlab/Simulink仿真技术,充分考虑车辆弯道制动时因为纵向和侧向加速度的存在而引起轮胎所受垂直载荷的变化,建立了汽车弯道行驶的八自由度整车动力学仿真模型,嵌入了ABS控制逻辑模型。对弯道制动工况下的车速、横摆角速度、转弯半径以及车轮滑移率的变化进行了仿真计算,结果表明该模型可以全面准确的模拟车辆在弯道制动时的运动状况,为开发和改进ABS系统提供了很好的参考依据。
Based on the Matlab / Simulink simulation technology, the vertical load of the tire caused by the longitudinal and lateral acceleration is considered when the vehicle cornering is fully considered. The dynamic simulation model of vehicle with eight degrees of freedom is set up, Embedded ABS control logic model. The vehicle speed, yaw rate, turning radius and wheel slip ratio under curve braking condition are simulated. The results show that the model can simulate the movement condition of the vehicle in curve braking completely and accurately. Development and improvement of ABS system provides a good reference.