基于车载测试的机动车比功率与排放关系的研究  

A Study on the Correlation Between VSP and Vehicle Emission Based on On-board Emission Test

作　　者：郭栋[1] 王云鹏[2] 邹广德[1] 高松[1] 谭德荣[1] 邵金菊[1] 

机构地区：[1]山东理工大学交通与车辆工程学院,淄博255000 [2]北京航空航天大学交通与科学工程学院,北京100191

出　　处：《汽车工程》2012年第1期18-21,66,共5页Automotive Engineering

基　　金：国家自然科学基金(50678072)资助

摘　　要：搭建车载排放测试试验平台,选择轻型车和中型车进行了实际道路排放测试,建立了排放数据与行驶工况数据对应的数据库。引入比功率的概念比较了机动车排放随比功率和速度的变化关系,分析了轻型车和中型车比功率的分布频率和3种污染物的排放随比功率的变化关系。结果表明,轻型车和中型车比功率集中在-3～7kW/t范围;和速度相比,机动车的排放与比功率有更强的相关性。An on-board emission testing platform is built, light and medium vehicles are chosen for conducting their emission test on real road, and a data base relating emission data to driving condition data is set up. A concept of vehicle specific power （VSP） is introduced, the relations of emission vs. VSP and emission vs. vehicle speed are compared, and the distribution frequencies of VSP for two types of vehicles and the changing relation between the emissions of three pollutants and VSP is analyzed. The results show that the VSP of light and medium vehicles concentrate on the range of -3 -7kW/t, and compared with vehicle speed, there is a more strong correlation between emissions and VSP of vehicles

关 键 词：车载排放测试 比功率 质量排放率 

分 类 号：U467.4[机械工程—车辆工程]