机动车实际道路排放特性及若干影响因素的研究  

The Study of Vehicle Emission Properties on Real-Road Condition and the Influence of Some Important Factors

作　　者：杜青[1] 杨延相[1] 郑伟[2] 丁宁[1] 蔡晓林[1] 金中国[1] 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津300072 [2]天津内燃机研究所,天津300072

出　　处：《内燃机学报》2002年第4期297-302,共6页Transactions of Csice

基　　金：天津市自然科学基金资助项目 ;日本丰田基金资助项目。

摘　　要：利用所设计的“机动车车载实时排放测试系统”研究了机动车实际道路排放因子的分布特征以及速度、加速度等参数对排放因子的影响规律。研究结果给出了 HC、CO、NO的排放因子在 g/ km和 g/ kg两种形式下高排放值的工况区域。这些区域的存在可根据发动机的燃烧状况和机动车的行驶速度、发动机的燃油消耗率等给出确定的解释。改善城市道路交通状况和优化发动机这些工况点的燃烧质量是减少机动车大气污染的关键所在。In this paper,the distribution properties of vehicle emission factors on real road condition and the influence of some important parameters such as speed and acceleration are studied by using a set of on board real time measuring system.The result shows the high emission part on driving mode areas of HC,CO and NO expressed by both forms of g/km and g/kg.The existence of these parts can be explained clearly according to the vehicle speed and the specific fuel consumption of the engine.To improve the city traffic and optimize the combustion of engine is the best way to reduce the exhaust emissions of vehicle in the atmosphere.

关 键 词：废气排放 排放因子 工况特征 汽车 

分 类 号：U467.48[机械工程—车辆工程]