电控摩托车发动机喷油及点火控制建模与仿真  

Modeling and Simulation of Fuel-Injection and Ignition Control of Electronically Controlled Motorcycle Engine

作　　者：龚金科[1] 翟立谦[1] 谭理刚[1] 鄂加强[1] 刘孟祥[1] 袁文华[1] 

机构地区：[1]湖南大学机械与汽车工程学院,长沙410082

出　　处：《内燃机工程》2005年第5期49-53,共5页Chinese Internal Combustion Engine Engineering

基　　金：国家"985"项目资助

摘　　要：根据质量连续和能量守恒等基本原理,在充分考虑气缸壁温度矢量场的基础上,建立了初始喷油脉宽数学模型。基于双区燃烧模型和紊流火焰传播模型建立了初始点火提前角数学模型。通过仿真计算得到了发动机电控喷射系统的初始MAP图,其结果与国产125 mL摩托车汽油发动机的试验结果一致。A mathematic model of initial injection pulse-width is set up according to the quality＇s continuousness and the energy conservation law, while the model emphasizes on the derivation of the temperature vector field. At the same time, a mathematic model of basic ignition advance angel is built according to double-district burn model and the turbulent flame behavior propagation model. Through the emulational calculation, we can get the initial MAP graph of the motorcycle＇s EFI system, and the results are well consistent with the experimental results of the domestic 125 mL motorcycle gasoline engine.

关 键 词：内燃机 仿真计算 喷油脉宽 点火提前角 偏微分方程 温度矢量场 MAP 

分 类 号：TK413[动力工程及工程热物理—动力机械及工程]