摘要
为了提高汽车行驶的安全性和驾驶汽车的舒适性,提出基于城市工况的模糊巡航控制方法,依据巡航控制系统原理建立模糊控制器和汽车纵向系统动力学模型,以理想安全距离与实际距离的差值、两车速度差作为巡航控制系统的控制变量,在Matlab/simulink平台上建立模糊控制器模型、车辆纵向系统动力学模型,最后以一种典型城市道路工况作为仿真工况。仿真结果表明:所建立的模型很好地实现了基于城市工况的安全行驶,具有较好的控制效果,验证了所建模型的有效性和正确性。
In order to improve the comfortable and safety of cars, Now put the cruise control method based on urban conditions, With theory of cruise control system built the fuzzy controller and the vehicle longitudinal system dynamics model, Then use the difference between the ideal safe distance and the actual as well as difference between the two vehicles speed as the controls variable of cruise control system, With the help of MATLAB/Simulink, we establish the model of fuzzy controller and longitudinal dynamics system of vehicle model. Finally, we establish a typical city road condition as simulation conditions, The results of simulation show that： the model we established in this paper achieve a good safe driving under urban conditions, also achieve the better control effect, At the same time validity and correctness of the model.
出处
《汽车实用技术》
2015年第5期17-20,共4页
Automobile Applied Technology
基金
淮安市汽车技术公共服务平台
项目编号:HAP201411
关键词
城市工况
纵向系统动力学模型
模糊控制
仿真
urban conditions
modeling of longitudinal dynamics system
fuzzy control
simulation
