城市道路坡度和车速对机动车排放的影响  

Effect of Urban Road Slope and Speed on Motor Vehicle Emission

作　　者：郑春燕 张海[2] 郭栋[2] 王娟 赵金宝[2] ZHENG Chunyan;ZHANG Hai;GUO Dong;WANG Juan;ZHAO Jinbao(School of Management,Shandong University of Technology,Zibo 255049,China;School of Transportation & Vehicle Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学管理学院,山东淄博255049 [2]山东理工大学交通与车辆工程学院,山东淄博255049

出　　处：《河南科技大学学报（自然科学版）》2019年第2期35-39,44,107,共7页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51508315;51608313);淄博市校城融合计划基金项目(2017ZBXC133)

摘　　要：为了分析城市道路坡度变化对机动车排放的影响,基于车载排放测试平台获取实际道路排放数据,并通过比功率反推完善数据。分析了在4个坡度区间的城市道路下,轻型车3种排放污染物(CO、HC、NOX)在不同速度区间的排放特性。研究结果表明:当车速处于20～50 km/h时,每升高一个坡度区间,3种污染物的质量排放率分别提升约22. 8%、23. 6%、24. 4%。在坡度一定的路面上,当车速处于20～40 km/h时,3种污染物处于高排放状态,其质量排放率比低排放状态分别提升约64. 3%、80. 0%、95. 0%。To study the impact of urban road gradient change on motor vehicle emissions,based on vehicle emission test platform,the actual road emission data was obtained. Through the vehicle specific power( VSP)backstepping,the data was improved. The emission characteristics of three pollutants( CO,HC,NOx) in the different speed range of the light vehicle in four slope sections were analysed. Analysis results show that when the vehicle speed is in the speed range of 20 ~ 50 km/h,the mass emission rate of the three pollutants approximately increases by 22. 8%,23. 6% and 24. 4%,respectively for increasing each slope interval. On the road with a certain slope,when the vehicle speed is in the speed range of 20 ~ 40 km/h,the three pollutants are in high-emission state. The mass emission rate is approximately increased by 64. 3%,80. 0% and 95.0%,respectively compared with low-emission state.

关 键 词：车载排放测试 城市道路坡度 速度 排放特性 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]