哈尔滨工程大学学报2017，Vol.38Issue(3)：397-403,7.DOI:10.11990/jheu.201604051
柴油机电控双阀燃油喷射系统的稳定性
Stability study of the electronically controlled double-valve fuel injection system of a diesel engine
摘要
Abstract
Aiming at fuel injection control in the electronically controlled double-valve fuel injection system of a diesel engine,this paper establishes a simulation model of the electronically controlled double-valve fuel injection system in the AMESim environment.The state matrices of the system that change over time during the injection process were acquired by using the linear analysis method.The stability and its influence factors of the system during injection were analyzed on the basis of the change of ranks and eigenvalue distribution of state matrices.The results show that the ranks of the state matrices are mainly affected by the action of the spill control valve,the needle control valve,and the needle valve.In the pressure building stage,owing to the compression of the plunger and the propagation,reflection,and superposition of the pressure wave within the high pressure volume,the system is in the unsteady state.In the fuel injection stage,after the needle valve reaches maximum lift,the flow state of fuel oil remains steady.In addition,the reflection and superposition of the pressure wave recede owing to the opening of the orifice,and system stability is enhanced.In the end stage of fuel injection,system stability increases,which is mainly caused by the strong damping effect of fuel discharge and attenuation of the pressure wave.关键词
柴油机/电控/燃油喷射系统/线性分析/特征值/喷油控制/溢流控制阀/针阀控制阀Key words
diesel engine/electronic control/fuel injection system/linear analysis/eigenvalues/spill control valve/needle control valve/fuel injection control分类
能源科技引用本文复制引用
范立云,杨逸风,赵晋成,白云,马修真,宋恩哲..柴油机电控双阀燃油喷射系统的稳定性[J].哈尔滨工程大学学报,2017,38(3):397-403,7.基金项目
国家自然科学基金项目(51279037,51379041) （51279037,51379041）
黑龙江省留学归国人员科学基金项目(LC201422). （LC201422）
