摘要
为了保证汽车定速巡航系统的控制精度、响应速度和控制稳定性,提出了一种基于模糊PID的参数自整定的模糊控制方法。该控制方法使用模糊规则,对PID的比例-积分-微分的参数进行实时在线调整,既保留了模糊控制的优点,又有效改善了系统的控制品质。使用PreScan与matlab/simulink的联合仿真可以得出以下结果:该控制方法在巡航速度和初始速度都分别为40、60、80、100km/h的条件下,定速巡航控制系统分别在5s、6s、11s、20s左右达到稳定状态,并且没有出现超调量。该系统响应速度快,超调量小,系统工作稳定,可以较好地满足汽车巡航系统中控制需求。
To ensure the response speed, control stability and control accuracy of cruise control system, a fuzzy control method of parameters self-tuning hased on fuzzy PIE） is presented. Fuzzy rules are used, and real-time online tunes proportional-integra derivative parameters of PID, not only retains the advantages of fuzzy control, but also effectively improves the quality of the system＇s control. Using co-simulation of PreScan and matlab/simulink can get the following results： under condition that crui sing speed and initial velocity both respectively are 40, 60, 80, 100 km/h, this control method reaches a steady state respectively at about 5s, 6s, lls, 20s, and no overshoot. The system has fast response speed and small overshoot, works stably and can satisfy the control needs of automobile cruise control system.
出处
《计算机工程与设计》
CSCD
北大核心
2013年第6期2098-2103,共6页
Computer Engineering and Design
基金
国家自然科学基金项目(51178053
50678027)
十一五国家科技支撑计划基金项目(2009BAG13A05)
