负荷车试验系统的模糊自适应PID控制  

Fuzzy auto tuning PID control strategy for the test system of themobile dynamometer vehicle

作　　者：王天颖[1] 项昌乐[1] 李明喜[2] 朱先民[2] 

机构地区：[1]北京理工大学机械与车辆工程学院,北京100081 [2]军事交通学院,天津300161

出　　处：《哈尔滨工业大学学报》2007年第6期997-1000,共4页Journal of Harbin Institute of Technology

基　　金：总装备部2002年重点科研项目(ZLA02058)

摘　　要：负荷车试验系统主要用于测量各种车辆的牵引性能,测量过程为复杂的多自由度动态响应过程,为保证试验的测量精度必须对该系统进行精确的实时加载控制.因此针对负荷车试验系统所具有的非线性、时变性特点,通过深入分析系统组成和响应特征,依据车辆牵引性能试验方法的要求,提出了在该试验系统中采用模糊自适应PID控制方法,确定模糊推理规则和控制算法,利用Matlab/Simulink工具,建立了控制系统模型,进行仿真计算研究.研制开发负荷车试验系统并完成实车试验,对比分析仿真计算与试验结果表明:控制系统是可行的,达到了预期的控制品质和试验测量精度要求.The Mobile dynamometer vehicle test system is used as a chief means of measuring the pull performance of vehicles. The proceeding of measurement is complex with multi - DOF system. In order to meet the precision demand in the test standard, an exactitude and real - time control for the system have to be taken. The test system of mobile dynamometer vehicle is nonlinear and time varing. An application of fuzzy auto tuning PID control strategy with the measure -control system is introduced according to the test conditions of the vehicle pull characteristic. The fuzzy ruler and control arithmetic is established. The control system model is built and solved with Matlab/Simulink tool. The mobile dynamometer vehicle is developed and the test is made. The simulation result is compared to the test data. It shows that the model and arithmetic is reasonable. The error and the control quality are acceptable.

关 键 词：PID 模糊控制 负荷车 性能试验 

分 类 号：U467[机械工程—车辆工程]