Injection Quantity Control for GDI Engines

摘要：

　　To improve fuel economy and reduce emissions,direct injection technology with precise fuel injections is widely used for gasoline engines,because quantitative precise fuel injection,as well as multi injection during one combustion revolution,is fit for the whole engine speed range.This paper designs a PID controller of fuel injection quantity for gasoline direct injection (GDI).Firstly,a mathematical model of an injector,which is used for controller validation,is established mainly based on fluid dynamic;Secondly,a map of fuel injection quantity corresponding with engine demands (according to engine speed and rail pressure) is calibrated by using the high-fidelity engine software enDYNA through experiments.Then,a PID controller is aimed to track the given value of fuel injection quantity.Tuning controller parameters are chosen by randomized algorithm according to the criteria of performance.Simulation results show that the designed control scheme is effective.

关键词： GDI engine map calibration injection quantity PID controller

作者: GUO Shuai XIN Baiyu HU Yunfen CHEN Hong

作者单位: State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130025, Chin Department of Control Science and Engineering, Jilin University, Changchun, 130025, China

会议类型: 国际会议

会议名称: the 25th Chinese Control and Decision Conference(第25届中国控制与决策会议)

会议地点: 贵阳

会议语种:英文

页码: 3593-3597

在线出版日期: 2013-05-01（万方平台首次上网日期，不代表论文的发表时间）