A Simulation of Dynamic Compensate for Air Fuel Ratio of Automobile Gasoline Engine under Transient Condition

摘要：

　　During transient condition,air fuel ratio of gasoline engine always greatly departs the theoretical value by the affection of intake pipe fuel film,this let exhaust emission increase.The dynamic characteristic of intake pipe fuel film is analyzed; an intake pipe fuel film model and a fuel compensation method based on it are presented,which are used for accurately control of air fuel ratio under transient condition.Two transient conditions of a gasoline engine are simulated with SIMULINK based on presented model and compensation method; the simulated results of air fuel ratio are given out by present fuel film model and by Aquino model.The result shows that the presented intake pipe fuel film model and a fuel compensation method can be used for accurately control of air fuel ratio under transient condition.

关键词： Air Fuel Ratio Gasoline Engine Transient Condition Automobile

作者: Huanchun GONG Shengyun XU Ying DU Dongdong WU

作者单位: North College of Beijing University Chemical and Technology,P.R.China

会议类型: 国际会议

会议名称: The 5th International Conference on Mechanical Engineering and Mechanics(第五届国际机械工程与力学会议)

会议地点: 江苏扬州

会议语种:英文

页码: 703-710

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）