基于连续微分方程对高压油管压力控制的研究

Research on Pressure Control of High Pressure Tubing Based on Continuous Differential Equation

本文针对高压油管的压力控制问题,运用了微分方程及改良的连续微分方程等理论,构建了基于微分方程的凸轮角速度确定模型、基于分段函数拟合及基于连续微分方程的单向阀控制方案等模型,综合运用MATLAB、EXCEL等软件编程求解,得出了恒压下凸轮角速度、喷油规律和多种情况下减压阀的控制方案等结论。在数学模型的基础上分别从宏观、微观角度给出高压油泵的压力控制方案,完成进一步改进,使作为温室气体排放大户的发动机产业朝着低污染、低油耗和高比功率输出的方向发展。

In this paper,based on the pressure control problem of high pressure tubing,using differential equations and improved continuous differential equations,a cam angle velocity determination model is built based on differential equations,and one-way valve control plan model based on piecewise function fitting and continuous differential equations continuous differential equations and so on.The control scheme and other models are comprehensively solved by software programming such as MATLAB and EXCEL,and the conclusions of the cam angular velocity,the fuel injection law under the constant pressure and the control scheme of the pressure reducing valve under various conditions are obtained.On the basis of the mathematical model,the pressure control scheme of the high-pressure oil pump is given from the macroscopic and microscopic perspectives respectively,and further improvement is made to make the engine industry,which is a large greenhouse gas emitter,develop in the direction of low pollution,low fuel consumption and high specific power output.