Simulating and Modeling of Intake Pipe Fuel Film Dynamic Characteristic under Gasoline Engine Transient Condition
During the gasoline engine transient process, both fuel quantity and fuel film parameter change, fuel film dynamics balance in intake pipe is destroyed, which makes the fuel quantity from nozzle and fuel quantity into the cylinder not be equaled. Therefore, fuel film model need to be established accurately in order to control the air fuel ratio accurately. The costumed fuel film model of Aquino is introduced in detail, and the characteristic of Aquino model used in gasoline engine transient process is also analyzed. Based on Aquino fuel film model, a new kind of dynamic fuel film model is presented, in which the change of intake parameter is consider. The air fuel ratio variable of two fuel film model is simulated by using SIMULINK under gasoline engine transient condition, and the simulated result is compared with experiment data. The result shows that the intake pipe fuel film dynamic characteristic is accurately described by the presented model, and the accuracy of presented model is higher than Aquino model.
Yi-hu Wu Huanchun Gong Lin-li Ou Li Zhou Cui Wang
School of Mechanical and Automotive Engineering, Changsha University of Science and Technology, Changsha, China 410076
国际会议
长沙
英文
703-707
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）