整车转弯制动控制仿真研究

Simulated Research on Turning and Braking Control of Automobile Which Based on Multibody Dynamics Automobile Model

转弯制动是汽车行驶中的常见工况。为了研究在该工况下对汽车控制时的各项性能,建立了整车非线性多体动力学模型,仿真分析了样车的操纵稳定性、平顺性和制动性能;利用ADAMS与MATLAB联合仿真技术,针对汽车在转弯制动的工况下的动态特性,对前轮转向和悬架采取联合控制,仿真结果表明所采用的模糊PID控制方法能较好地改进汽车的行驶性能。

Turning Vehicle Braking is the common condition. To study the performance of controlled automobile,the paper established multi-body dynamics model,analyzed manoeuvre stability,smoothness and braking performance by simulation. Untied simulated techniques based on ADAMS and MATLAB is utihzed to analyze the dynamics performance of front-wheel and suspension untied control. The result shows that the fuzzy and PID control methods can improve the performance of automobile.