基于进油比例控制阀的轨压控制仿真研究  

Research on Simulation of Rail Pressure Control Based on Proportional Control Valve

作　　者：陈海龙 Chen Hailong(Mechanical Electrical Management Department,China Coast Guard Academy(Ningbo,Zhejiang,315801,China)

机构地区：[1]武警海警学院机电管理系

出　　处：《小型内燃机与车辆技术》2019年第5期22-25,29,共5页Small Internal Combustion Engine and Vehicle Technique

摘　　要：为研究柴油机高压共轨燃油喷射系统共轨压力(轨压)波动,在系统的物理和数学模型基础上,制定了进油比例控制方式,设计了适用于进油比例控制方式的高压共轨燃油喷射系统。采用面向对象的可视化仿真软件,从物理模型出发,建立了高压共轨燃油喷射系统仿真模型;根据进油比例控制方式,用Matlab/Simulink软件建立了相应的PID控制模块;运用高压共轨燃油喷射系统仿真软件与Matlab/Simulink的接口,建立了16缸柴油机轨压实时控制系统。输入仿真参数,运行模型,模拟了共轨管内的燃油压力。结果表明,所制定的进油比例控制方式及PID策略能使轨压在0.35s内快速建立,并在各种设定压力下稳定在设定值3%的范围之内。In order to research the fuel pressure fluctuation of the high pressure common-rail fuel injection system for a ship diesel engine,based on establishing a physical and math model of the high pressure common-rail,the control manner of Proportional oil-in Control for fuel pressure control has been discussed and framed.The structure of the fuel injection system which adapts to this control manner has been designed,and the high pressure common-rail fuel injection system simulation model has been established through the Object Oriented simulation software.Based on this control manner,the corresponding PID control model has been established through the Matlab/Simulink.Finally,the real time control system of 16-cylinder diesel engine has been established through the juncture between the fuel system simulation software and Matlab/Simulink software.The simulation parameters were input,the model was run,and the common-rail fuel pressure was simulated.The result shows that,common-rail fuel pressure can be set up by the tuned control manner of Proportional oil-in Control and the strategy of PID in less than 0.35s,and stabilized in the range of 3%under manifold set pressures.

关 键 词：高压共轨 进油比例控制 轨压实时控制 

分 类 号：TK421.44[动力工程及工程热物理—动力机械及工程]