基于递归反演方法的电子节气门非线性控制  

Nonlinear control of electronic throttle based on recursion back-stepping method

作　　者：万钧力[1] 曾曲洋[1,2] 沈艳军[1] 

机构地区：[1]三峡大学电气与新能源学院,宜昌443002 [2]三峡电力职业学院,宜昌443000

出　　处：《电子测量与仪器学报》2014年第4期395-401,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(61074091);湖北省自然科学基金(2010CDB10803)资助项目

摘　　要：针对电子节气门的非线性和传统PID控制器的不足,提出一种基于递归Backstepping方法的控制策略,以节气门位置跟踪为控制对象,对电子节气门的结构进行了分析,建立了电子节气门的数学模型,以Lyapunov稳定性理论为基础,设计了Backstepping控制器。为了比较不同控制策略对电子节气门的控制效果,进行了PID和Backstepping两种控制策略的仿真实验,并分别采用阶跃、斜坡和正弦波作为目标信号完成跟踪控制仿真,仿真结果表明,Backstepping控制具有良好的动态特性,阶跃响应时间小于100 ms,控制效果明显优于PID,该控制能有效解决时变非线性系统的快速响应与超调量偏大两者矛盾的问题。In order to overcome the disadvantage of the non-linear attribute of electronic throttle and the deficiency of traditional PID controller,a control strategy is proposed based on recursion back-stepping method.This strategy takes throttle position tracking as control object,analyzes the structure of the electronic throttle,and establishes a mathematical model of the electronic throttle.A back-stepping controller is also designed based on Lyapunov stability theory.To compare different control effects on electronic throttle made by various control strategies,the simulation experiments is carried out on two control strategies:PID and back-stepping,taking step,slope and sine wave as target signals to complete tracking control,respectively.The simulation result indicates that back-stepping control has good dynamic characteristics,step response time is less than 100 ms and its control effect is significantly better than that of PID.Therefore,this type of control can effectively solve the contradiction between fast response and large overshoot in time-varying non-linear system.

关 键 词：电子节气门 反演控制 位置跟踪 仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]