不同工况循环下的轻型汽车排放和油耗特性研究  

The Research on Emission and Fuel Consumption Characteristics of Light Vehicles under Different Cycling Conditions

作　　者：罗长亮[1] 郭晓鑫[1] 马毅[1] 李国栋[1] 张凤鸣 Luo Changliang;Guo Xiaoxin;Ma Yi;Li Guodong;Zhang Fengming(China Automotive Engineering Research Institute Co.,Ltd.,Chongqing,401120,China)

机构地区：[1]中国汽车工程研究院股份有限公司

出　　处：《小型内燃机与车辆技术》2019年第6期1-5,共5页Small Internal Combustion Engine and Vehicle Technique

摘　　要：介绍了当前世界上轻型车排放与油耗测试工况循环的发展历程和研究现状,并选取样车分别在NEDC、WLTC、CLTC工况下进行常温冷起动后排气污染物排放试验,对其排放和油耗结果进行比对分析。结果表明,轻型车排放主要与车辆排放控制后处理装置有关,与试验运行工况循环关系较小。轻型车油耗受运行工况循环影响较大,CLTC工况油耗与车辆实际油耗更为接近,增压车型油耗相比自然吸气车型油耗受工况循环影响更大。This paper introduces the development and research status of the current cycle of light vehicle emissions and fuel consumption test conditions in the world, and selects sampling vehicles to conduct exhaust pollutant emission tests at normal temperature under the conditions of NEDC, WLTC, and CLTC.The results of emissions and fuel consumptions were compared and analyzed. The results show that the emission of light vehicle is mainly related to the post-treatment device of vehicle emission control, and has little relationship with the cycle of test operation. The fuel consumption of light vehicles is greatly affected by the operating conditions cycle. The fuel consumption of the CLTC operating conditions is more similar to the actual fuel consumption of the vehicle. The fuel consumption of the supercharged models is more affected by the operating conditions cycle than that of the naturally aspirated models.

关 键 词：工况循环 排放 油耗 特性 

分 类 号：U467.48[机械工程—车辆工程]