轻型柴油车实际行驶排放特性的研究  

A Research on the Real Driving Emission Characteristics of Light-duty Diesel Vehicles

作　　者：杨正军[1,2] 付秉正 尹航[3] 谭建伟[1,2] 周小燕[1,2] 葛蕴珊[1,2] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]北京电动车辆协同创新中心,北京100081 [3]中国环境科学研究院,北京100012

出　　处：《汽车工程》2017年第5期497-502,共6页Automotive Engineering

基　　金：国家自然科学基金(51276021);科技部大气专项(2016YFC0208005);青海省科技项目(2013-J-A4)资助

摘　　要：根据欧盟最新制定的实际行驶排放RDE试验规程,使用便携式车载排放测试系统对两辆分别满足欧Ⅳ和欧Ⅵ排放标准的柴油轿车进行了实际行驶排放试验。结果表明:车辆RDE试验NO_x排放因子是实验室认证循环NEDC的6.8~7.7倍,且NEDC,FTP75与WLTC循环和RDE试验中的NO_x符合性因子(0.71~7.09)均大于CO符合性因子(0.11~0.63);NO_x瞬时排放率随加速度的增大而升高;市郊和高速公路工况下,NO_x瞬时排放率在车辆加速度超过NEDC循环工况的最大加速度时达到峰值。因此在制定RDE法规时,应重点关注轻型柴油车的NO_x排放。The real driving emissions from two diesel vehicles meeting Euro-IV and Euro-VI emission regu-lations respectively are measured using portable emission measurement system in accordance with real driving emis-sions （RDE） procedure newly formulated by EU. The results show that the N0 X emission factors of two vehicles with RDE procedure are 6. 8 -7. 7 times as high as those with laboratory certification cycle NEDC,and the NO, conformi-ty factors （0.71-7. 09） with NEDC, FTP75 and WLTC cycles and RDE procedure are all larger than those of CO （0. 11-0. 63）. The instantaneous emission rate of NO, rises with the increase of vehicle acceleration and under the suburban and motorway conditions,peaks in instantaneous emission rate of NO, appear whenever vehicle accelera-tion exceeds the maximum acceleration in NEDC cycle. Accordingly particular attentions should be paid on the NO, emission of light-duty diesel vehicles in formulating RDE regulation.

关 键 词：轻型柴油车 实际行驶排放 

分 类 号：U467.48[机械工程—车辆工程]