摘要
针对国Ⅲ标准中新规定的-7°的低温冷起动测试,采用对比试验的方法比较了低温冷起动(Ⅵ型试验)和常温冷起动(Ⅰ型试验)整个排放过程中CO、HC和CO2的排放差异。对两种温度条件下的催化器入口温度进行了比较分析。通过对排放特性的比较,简述了汽油车低温冷起动排放控制方法。
Considering the new standard of low temperature cold star test at -7°in National Standard m ,this paper uses contrastive test to compare the differences of CO ,HC and CO2 emission between low temperature cold start(type Ⅵ ) and common temperature cold start (type Ⅰ ).It shows the difference of catalyst input temperature in two temperature test conditions.By analyzing emission characteristics,this paper gives some controlling methods about gasoline vehicle low temperature cold start.
出处
《汽车技术》
北大核心
2007年第4期25-28,共4页
Automobile Technology
关键词
汽油车
冷起动
排放特性
Gasoline vehicle,Low temperature cold start,Emission characteristic