轻型插电式混合动力汽车实际行驶污染物排放特性  

Real driving emission characteristics of a light duty plug-in hybrid electric vehicle

作　　者：汪晓伟 景晓军[1] 秦孔建[1] 闫峰[1] WANG Xiaowei;JING Xiaojun;QIN Kongjian;YAN Feng(China Automotive Technology and Research Center,Tianjin 30030Q China)

机构地区：[1]中国汽车技术研究中心

出　　处：《汽车安全与节能学报》2018年第2期209-214,共6页Journal of Automotive Safety and Energy

基　　金：科技部大气污染成因控制技术专项(2017YFC0211005);国家重点研发计划资助项目(2016YFB0101401)

摘　　要：为了解混合动力汽车实际行驶下的排放情况,使用车载排放测量系统(PEMs)对一辆满足国5排放法规的插电式混合动力汽车按照轻型车国6标准进行了3次实际行驶污染物排放(RDE)试验,探寻了一氧化碳(CO)、氮氧化物(NO_x)和颗粒物数量(PN)的排放特性。结果表明:尽管该轻型混合动力乘用车的新型欧洲驾驶循环(NEDC)排放测试结果符合法规要求,但在市区行程和总行程的PN的符合性因子(CF)均高于2.1,NO_x的均低于2.1,而CO的超过2.1。在实际道路的城市工况时,每次发动机起动时排放会有相应的峰值;郊区和高速工况时,发动机提供动力的同时还在给电池充电,导致CO、NO_x和PN的排放均很高。Three real driving emission（RDE） tests were conducted in accordance with the China No 6 emission regulation of light-duty vehicle to understand the exhaust emission of hybrid vehicle under real driving by using a portable emission measurement system（PEMs） for the light duty plug-in hybrid electric vehicle（PHEV） which met the China No 5 emission regulation＇ requirements. The characteristics of emissions including CO, NOx and particle number（PN） were investigated. The results show that emission results based on New European Driving Cycle（NEDC） meets the regulation requirements. However, for these three RDE tests, the emission conformity factor（CF） of PN is over the limitation of 2.1 at both of the city trip and total trip; while the CF of NOx is lower than the limitation of 2.1, and that of CO sometimes surpasses 2.1. The emission peak appears at each engine start, CO, NOx and PN emissions are very high during the rural and motorway trips because the engine is charging the battery besides powering the vehicle.

关 键 词：插电式混合动力汽车 污染物排放 实际行驶排放(RDE) 排放特性 符合性因子(CF) 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]