基于模糊控制的四轮转向汽车研究  

Research on Four-wheel-steering Vehicle Control Based on Fuzzy Control

作　　者：周丽[1] 王翠[1] 欧林立[1] 

机构地区：[1]长沙理工大学汽车与机械工程学院,湖南长沙410076

出　　处：《机械与电子》2009年第3期40-42,共3页Machinery & Electronics

基　　金：湖南省教育厅重点资助项目(03A005);湖南省自然科学基金项目(04JJ40062)

摘　　要：将模糊控制技术应用于四轮主动转向汽车控制策略研究,通过模型跟踪技术,提出一种以模糊控制横摆力矩输出作为反馈的新方法,设计了反馈控制器,同时采用前、后轮比例控制作为前馈提高系统响应时间,并对所设计的控制器在不同车速下的阶跃响应进行仿真分析与对比,结果证明基于模糊控制理论所设计的控制器可以适用于汽车的四轮转向系统,并能很好的跟踪理想模型,提高了汽车的操纵稳定性.In this paper, fuzzy control technology will be applied to four - wheel vehicle control. Through model tracking technology, we designed the feedback controller which used yaw torque as the controlled output based on fuzzy control theory, meanwhile,used proportional control as a feed forward to improve system response time, several simulations were conducted at different speed of the step -response simulation analysis and comparison. The results proved that theory based on fuzzy control by the controller can be applied to the four -wheel steering vehicle system, and can be improve the car＇s handling and stability.

关 键 词：四轮转向 模型跟踪 操纵稳定性 反馈 模糊控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]