改进ASM工况与双怠速工况的汽油汽车排放分析  

Analysis of Emissions from Gasoline Vehicle under Conditions of Improved ASM and Double Idle Speed

作　　者：张雨[1] 臧斌[2] 刘国兵[1] 赵建华[1] 

机构地区：[1]南京工程学院车辆工程系,江苏南京211167 [2]长沙理工大学载运工具运用工程研究所

出　　处：《小型内燃机与摩托车》2008年第4期78-80,共3页Small Internal Combustion Engine and Motorcycle

基　　金：国家自然科学基金资助项目(50176006)

摘　　要：比较了改进ASM工况与双怠速工况汽油汽车排放的共性与差异。采用汽车排放远程检测系统获得汽油汽车在改进ASM工况下的排放;采用体积分数排放量和"Shannon熵"作为排放特征参数。改进ASM工况与双怠速工况排放的共性是转速越低,排放越大,差别是前者的燃烧紊乱程度高于后者。双怠速工况下获得的汽油汽车排放量不能反映改进ASM工况的排放状况。The difference and commonness of gasoline vehicle emissions between the improved ASM condition and the double idle speed condition are compared. The gasoline vehicle emission in improved ASM condition is obtained by a remote inspecting system for automobile tail emission; the emission volume fraction and the Shannon entropy are used as the emission characteristic parameters. The commonness of the gasoline vehicle emission in the two conditions is that the lower the rotating speed of engine is, the larger the gasoline vehicle emission is. The difference between the two conditions is that the combustion turbulence degree of the former is higher than that of the latter. The gasoline vehicle emission obtained in the double idle speed condition cannot meet the one obtained in the improved ASM condition.

关 键 词：载运工具运用工程 汽油汽车 瞬态排放 改进ASM工况 单缸Shannon熵 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程] TP391[自动化与计算机技术—计算机应用技术]