基于非线性模型的发动机非稳态工况控制  

Design and Optimize Electric Throttle Performance Based on the Non-linear Modeling

作　　者：李岳林[1] 王立标[1] 曾志伟[1] 汤彬[1] 杜宝杰[1] 

机构地区：[1]长沙理工大学汽车与机械工程学院,长沙410076

出　　处：《汽车工程》2009年第7期674-677,共4页Automotive Engineering

基　　金：湖南省自然科学基金(06JJ20045);湖南省教育厅重点科研项目(07A004)资助

摘　　要：针对发动机非稳态工况,建立了非线性模型。设计了滑模控制器和PID控制器分别对节气门开度和点火时刻进行自适应调节。对发动机怠速工况进行仿真的结果表明,发动机转速波动幅值低于6 r/min,表明所建的非线性模型适合于发动机非稳态工况控制。A non-linear model is set up for engine transient operating conditions. Both sliding mode controller and PID controller are designed to realize adaptive regulation of throttle opening and ignition timing respectively. The results of simulation on engine idling show that the amplitude of engine speed fluctuation is less than 6 r/min, indicating that the non-linear model built is appropriate for the control over the transient operating conditions of engine.

关 键 词：发动机 非稳定工况 控制 非线性模型 节气门开度 点火时刻 

分 类 号：U464[机械工程—车辆工程]