模糊自适应PID在汽车底盘测功机中的仿真研究  

Simulation research of fuzzy adaptive PID control in the vehicle chassis dynamometer system

作　　者：郭磊[1] 陈文会[1] 刘小民 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072 [2]陕西脉航交通测控有限公司,陕西西安710000

出　　处：《电子设计工程》2013年第7期76-79,共4页Electronic Design Engineering

摘　　要：在汽车底盘测功机研究中,由于汽车底盘测功机是一个复杂的时变非线性、大惯性系统。传统的PID控制对于非线性、时变性的系统难以达到控制精度的要求,而模糊自适应PID控制具有在线自动调整的功能,从对传统的PID与模糊自适应PID比较的基础上,分析了参数对系统性能的影响,并利用MATLAB软件中的模糊工具箱对连续系统进行了仿真,离散系统采用编程仿真,比较结果表明,模糊自适应PID控制器具有良好的跟踪性能,超调量小、控制精度高、调节速度快,可以实现对PID参数的最佳调整。The vehicle chassis dynamometer is a complex nonlinear and time-varying inertial system. It is difficult for traditional PID control to meet the requirements of precision and it is not fit for nonlinear time-varying system and fuzzy adaptive PID control has the function of on-line automatic adjustment. In this paper, we make the comparison of the traditional PID and fuzzy adaptive PID, and analysis parameters on system performance, and take advantage of the fuzzy toolbox in MATLAB software for continuous system simulation, and discrete system using programming simulation. Results show that the fuzzy adaptive PID controller has good tracking performance, smaller overshoot control, higher precision speed adjustment, These performances can achieve the best adjustment of the PID parameters.

关 键 词：模糊控制 自适应PID MATLAB SIMULINK 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]