摘要
介绍了汽车电子节气门控制系统的结构及工作原理,分析了系统的非线性因素,建立其数学模型,叙述了负载力矩观测器工作原理,设计了增量式PID控制器和负载力矩补偿器。并在Matlab/Simulink中进行了仿真。从仿真结果可以看出:增量式PID控制器的控制精度较差,并且容易产生超调;基于负载力矩观测器的PID控制器具有较好的跟踪性,可以较好地满足控制要求。
This paper introduces the structure and working principles of the automotive electronic throttle control system.After analyzing the nonlinearity of the system,a mathematical model of the system is built up,and the working principle of load torque observer is described.Then incremental PID controller and load torque compensator were designed and simulated in the Matlab/Simulink.Through analyzing simulative result,we can see that the control precision of the incremental PID controller is poor,and it also has an overshoot.However,the PID controller based on the load torque observer has a better tracking performance,it can meet the control requirements very well.
出处
《机械科学与技术》
CSCD
北大核心
2010年第10期1346-1351,共6页
Mechanical Science and Technology for Aerospace Engineering
基金
广西自然科学基金项目(桂科自02290101)资助
关键词
电子节气门
数学模型
非线性
负载力矩补偿器
electronic throttle
mathematical model
nonlinearity
load torque compensator
