汽油机燃烧循环变动的分岔特征  

The Bifurcation of Cyclic Combustion Variations in a Gasoline Engine

作　　者：刘志强[1] 徐小林[1] 李岳林[1] 

机构地区：[1]长沙理工大学汽车与机械工程学院

出　　处：《车用发动机》2005年第3期13-17,共5页Vehicle Engine

基　　金：湖南省自然科学基金资助项目(03JJY4050);湖南省教育厅科学基金资助项目(01C253;04C094)

摘　　要：对16种不同工况下的汽油机示功图进行了测量,以缸内峰值压力的试验数据为基础,应用符号时间序列分析方法,得到了汽油机燃烧循环变动的分岔特性,同时获得了汽油机燃烧循环变动随转速与负荷的变化规律。In this paper, the pressure indicator diagrams under different operating conditions in a CS492Q-1A gasoline engine are measured. In-cylinder peak pressure is chose to be the characteristic parameter of cyclic combustion variations (CCV). Then, the applying technologies of symbolic time series analysis (STSA) are investigated to analyzing the bifurcation of CCV based on these test data. At the same time, the trends of characteristics of CCV with the change of rotary speed and load are obtained.

关 键 词：汽油机 燃烧循环变动 符号时间序列分析 分岔 Shannon熵 

分 类 号：TK421.2[动力工程及工程热物理—动力机械及工程]