摘要
为了给在用汽车排放检测地方法规的制定提供科学依据,采用怠速法、双怠速法、ASM(加速模拟工况法)稳态工况法和IM 195瞬态工况法对出租车进行了排放测试。对比分析了怠速、双怠速、ASM和IM 195的排放合格率;以IM 195为基准,分析了怠速、双怠速和ASM的排放有效识别率;研究了不同测试方法下的CO、HC、NOx排放量随行驶里程的变化,通过多项式回归分析得出各种排放污染物随行驶里程的关系。结果表明:以IM 195为基准,怠速、双怠速和ASM的排放有效识别率分别为58.70%、67.39%和84.78%;行驶里程对排放污染物的影响呈二次曲线关系;行驶里程超过30×104km后,各种污染物排放量均显著增加;相对于10×104km、70×104km的CO、HC、NOx排放的平均值分别增加了23.13倍、30.94倍和18.79倍。
In order to provide scientific reference for drawing up the exhaust pollutants standard of in-use vehicles, this paper studied the exhaust emissions of taxies by means of the following test modes：idle mode, double idle mode, acceleration simulation mode （ASM） steady mode and instantaneous mode （IM） 195. It compares test results under different test modes and calculates the vehicle emissions effective recognition ratios after idle mode, double idle mode, ASM mode relatively to IM 195. It analyzes the relationships between the emission levels of CO, HC, NOx and vehicles＇ driving mileages, gains regression equations between driving mileages and emission values. The experimental results show that the effective recognition ratios of idle mode, double idle mode, ASM mode, relatively to IM 195, are 58.70%, 67.39% and 84.78%, respectively. The relationships between driving mileages and emission pollutants are parabolic curves. CO, HC and NOx emissions are all increased greatly after the mileage is over 30 ×10^4 km. Compared to CO, HC and NO, emissions after 10 ×10^4km, these emissions after 70 ×10^4 km are averagely increased 23.13 times, 30.94 times and 18.79 times respectively. 6 tabs, 16 figs, 12 refs.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第2期88-93,共6页
Journal of Chang’an University(Natural Science Edition)
基金
国家863计划项目(2006AA11A1C9)
关键词
汽车工程
在用汽车
排放特性
测试工况
有效识别率
行驶里程
automobile engineering
in-use vehicle
emission characteristics
test mode
effective recognition ratio
driving mileage
