轻型车RDE试验的排放特性研究  

The Study on Emission Characteristics of RDE

作　　者：陆明江 龚然成 蒋轶谦 陈自力 梁堂 LU Mingjiang;GONG Rancheng;JIANG Yiqian;CHEN Zili;LIANG Tang(SAIC-GM-Wuling Automobile Co.,Ltd.,Liuzhou Guangxi 545007,China;AISN AUTO R&D CO.,LTD,Liuzhou Guangxi 545007,China)

机构地区：[1]上汽通用五菱汽车股份有限公司,广西柳州545007 [2]湖南湖大艾盛汽车技术开发有限公司,广西柳州545007

出　　处：《装备制造技术》2021年第12期152-155,共4页Equipment Manufacturing Technology

摘　　要：研究了轻型车道路试验的排放结果计算过程和引用台架转毂排放试验计算全过程排放的方法。研究了CO和NOx在各窗口的排放特性,CO和NOx分别集中于高速区和市区。冷启动对CO和PN排放的增加量虽然仅分布在市区,但对全程排放结果依旧较大,尤其是PN。对比了18组台架法和RDE法的全程排放结果,RDE法的排放整体偏大。不包含冷启动的情况下,二者结果相差在20%以内,平均在12.2%;包含冷启动的情况下,相差10%以内,最小3.9%。The calculation of emission result of RDE was introduced and with the way on test bench.CO and NOx result in different windows was studied,CO and NOx result are concentrated in urban and motorway.Cold start has a large effect on CO and PN result of overall,especially PN,even when the increase is came from urban.18 groups of emission results,including cold start and excluding cold start,were compared,while the results were calculated by RDE method and test bench method.The whole emission result of RDE method is lager.The differ are within 20%and the average differ is 12.2%while cold start is excluded.The value are 10%and 3.9%(the minimum value).

关 键 词：RDE 排放特性 冷启动 台架法 

分 类 号：U467[机械工程—车辆工程]