环境温度对插电式混动RDE排放的影响研究  

Research on the Influence of Environmental Temperature on RDE emissions of Plug-in Hybrid Vehicle

作　　者：柴家启 杨冬霞 杜君臣 顾绍晶 欧阳曾繁 向桥 邵峰 Chai Jia-qi;Yang Dong-xia;Du Jun-chen;Gu Shao-jing;Ouyang Zeng-fan;Xinag Qiao;Shao Feng(State-Local Joint Engineering Research Center of Precious Metal Catalytic Technology and Application,Kunming Sino-platinum Metals Catalysts Co.Ltd.Kunming 650106,China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,KunmingInstitute of Precious Metals,Kunming 650106,China)

机构地区：[1]昆明贵研催化剂有限责任公司贵金属催化技术与应用国家地方工程研究中心,昆明650106 [2]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《内燃机与配件》2024年第6期8-11,共4页Internal Combustion Engine & Parts

基　　金：国家自然科学基金(22262016);云南省重大科技专项计划(202102AB080007);重庆市技术创新与应用发展专项(cstc2020jscx-dxwtBX0024);云南省科技人才与平台计划项目(202205AC160085)。

摘　　要：随着国家碳中和政策和汽车企业油耗双积分政策的推行,插电式混动汽车在国内乘用车市场的占有量稳步上升。以一辆满足国六排放标准的代表性插电式混动汽车为研究对象,在环境模拟实验室使用全流排放测试系统(CVS)和PEMS串联测试,研究了环境温度对插电式混动汽车RDE排放测试影响。结果表明:PN排放量和符合因子随环境温度的下降而升高;NOx符合因子随环境温度的下降而升高;THC、CO、NH_(3)排放量随环境温度的下降而升高;基于欧七或国七控制不同环境温度下插电式混动汽车RDE排放特点及风险分析,提出了通过进行原排、标定策略优化,加载CGPF,提升后处理催化剂的贵金属用量等思路以确保RDE排放满足法规要求。With the implementation of the national carbon-neutral policy and the double-integral policy of fuel consumption,the share of plug-in hybrid vehicles in the domestic passenger vehicle market has increased steadily.Taking a representative plug-in hybrid vehicle meeting the national six emission standards as the research object,the full-flow emission test system(CVS) and PEMS series test were used in the environmental simulation laboratory,the influence of ambient temperature on RDE emission measurement of plug-in hybrid vehicle was studied.The results showed that PN emission and coincidence factor increased with the decrease of ambient temperature,NOx coincidence factor increased with the decrease of ambient temperature,THC,CO,NH_(3) emission increased with the decrease of ambient temperature Based on the RDE emission characteristics and risk analysis of plug-in hybrid vehicles under different ambient temperatures controlled by Euro 7 or Euro 7,this paper proposes a new approach to control RDE emission of plug-in hybrid vehicles by optimizing the original emission and calibration strategy,loading CGPF,increasing the amount of noble metal used in the post-treatment catalyst to ensure that the RDE emission meets the regulatory requirements.

关 键 词：插电混动汽车 RDE排放 环境温度 欧七 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]