电控高压共轨燃油系统循环喷油量影响因素研究  

The Study of Influencing Factor on Fuel Injection Quantity of High Pressure Common Rail System with Electronic Control

作　　者：王昊[1] 杜德芳 白云[1] 田丙奇[1] 范立云[1] 

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001 [2]大众汽车自动变速器(大连)有限公司,辽宁大连116600

出　　处：《内燃机》2013年第5期14-17,共4页Internal Combustion Engines

基　　金：国家自然科学基金项目(51279037);中央高校基本科研业务费专项资金项目(HEUCFZ13);黑龙江省博士后科研启动金(LBH-Q12126)

摘　　要：高压共轨燃油系统不但能够使柴油机满足日益严格的排放法规,还能提高柴油机的动力性和经济性。但由于其是一个多物理场相互耦合的复杂系统,特性参数的变化会影响系统的工作性能。建立了高压共轨的AMESim模型,在不同工况下分析研究了电磁阀最大升程、控制活塞间隙、针阀最大升程、喷油开启压力和喷孔流量系数等关键参数对系统循环喷油量的影响,并得出电磁阀最大升程、针阀最大升程、喷油开启压力和喷孔流量系数是引起循环喷油量波动的关键参数。High pressure common rail injection system not only enables the diesel engine to meet the increasingly strict emission criterion, but also enhances its economic efficiency and power performance. But the change of characteristic parameters can influence system＇ s working performance because high pressure common rail is a system coupled of multiple physical fields. The simulation model of high pressure common rail was established in AMESim environment. The influences to fuel injection quantity of electromagnetic valve lift, clearance of control piston, needle valve lift, open pressure and flow coefficient were analyzed in different working conditions. The results show that electromagnetic valve lift, needle valve lift, open pressure and flow coefficient are the key characteristic parameters which cause the fuel injection quantity fluctuation.

关 键 词：电控 高压共轨 循环喷油量 AMESIM 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]