摘要
针对汽车运行过程中工况的多变,以及模糊控制的局限性等问题,以提高冷却液温度控制精度和稳定性为目标,提出一种变论域模糊控制的电子水泵控制策略。在Flowmaster中建立发动机冷却系统的一维稳态模型,通过Flowmaster Interface模块传递转速和温度信号,与Simulink建立联合仿真。仿真结果表明,相较于模糊控制,变论域模糊控制能使冷却液温度更快地到达目标温度,快速性提升了11.57%,在目标温度偏差±0.5℃范围内的时间增加了11.96%,且冷却液温度波动幅度减小了40.97%。
Considering the various vehicle working conditions and the limitation of fuzzy control,this paper proposes a controlling strategy of electronic water pump based on variable universe fuzzy control,aiming at improving the accuracy and stability of coolant temperature control.A one-dimensional steady-state model of engine cooling system is established in Flowmaster.The speed and temperature signals are transmitted through Flowmaster Interface module,and the co-simulated with Simulink.The results show that the developed controlling strategy can enable faster response of controlling of the coolant temperature by 11.57%.The time within the target temperature deviation range of±0.5℃is stretched by 11.96%,while the fluctuating amplitude of the coolant temperature is reduced by 40.97%.
作者
程鑫
夏一恒
刘一鹏
彭程
CHENG Xin;XIA Yiheng;LIU Yipeng;PENG Cheng(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China;Hubei Provincial Engineering Technology Research Center for Magnetic Suspension,Wuhan University of Technology,Wuhan 430070,China)
关键词
发动机冷却系统
电子水泵
联合仿真
温度控制精度
变论域模糊控制
engine cooling system
electronic water pump
co-simulation
temperature control accuracy
variable universe fuzzy control
作者简介
程鑫(1982-),男,湖北武汉人,武汉理工大学机电工程学院副教授.
