基于模型的汽油机动态转矩输出性能仿真研究  

Research of Gasoline Engine′s Dynamic Torque Output Based on Model

作　　者：杜常清[1] 杜传进[1] 严运兵[1] 

机构地区：[1]武汉理工大学汽车学院,武汉430070

出　　处：《武汉理工大学学报（交通科学与工程版）》2008年第2期229-231,266,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家863计划项目资助(批准号:2003AA501212-3)

摘　　要：以Matlab/Simulink仿真软件为工具,研究了基于汽油机平均值模型的发动机动态转矩估计方法.建立并验证了发动机动态模型.用所建立模型能够由节气门开度和转速动态计算输出转矩.对给定的转矩曲线进行动态转矩跟随时发动机的节气门开度变化情况进行了仿真分析.An available mathematic model of gasoline engine based on the mean value engine model is set up in this paper via dynamic simulation software Matlab/simulink. The mathematic model has been validated on a real engine. The engine＇s performance of torque output is analyzed and simulated when the inputs are throttle angle and engine speed. The throttle angle change when the engine operating on the given torque curve is simulated and analyzed too. The on-board engine torque estimation and the smooth power transfer under state-switch control of hybrid electrical vehicles can base on the study in this paper.

关 键 词：汽油机 动态模型 转矩 仿真 

分 类 号：U464[机械工程—车辆工程]