混合动力轿车不同通行时段的市区道路尾气排放特征研究  

Emission Characteristics of the Hybrid Electric Vehicle on Urban Road during Different Traffic Time

作　　者：孙龙林[1] 黄文伟[1] 董铸荣[1] 

机构地区：[1]深圳职业技术学院汽车与交通学院,广东深圳518055

出　　处：《安全与环境工程》2017年第4期79-83,共5页Safety and Environmental Engineering

基　　金：深圳市科技计划项目(JCYJ20140702172114468;ZDSYS201602291000573)

摘　　要：为揭示混合动力轿车在不同通行时段的市区道路尾气排放特征,利用高精度的移动排放测试仪,对混合动力轿车进行不同通行时段的市区道路尾气排放上的测试,分析混合动力轿车在顺畅时段和拥堵时段的尾气排放特征。试验数据分析表明:速度特征上,混合动力轿车在顺畅时段CO、NOx和HC的平均排放速率和平均排放因子的峰值主要出现在低速区域,在拥堵时段CO、NOx和HC的平均排放速率和平均排放因子的峰值主要出现在发动机起动初期速度区间;比功率特征上,混合动力轿车在顺畅时段和拥堵时段高比功率区间CO、NOx和HC的平均排放速率和平均排放因子的峰值都明显高于低比功率区间和负比功率区间;道路拥堵虽然会延长混合动力轿车的通行时间,但同时增加了其纯电力驱动的低速行驶时间,使尾气排放并没有显著增加。This paper carries out the onroad emission experiments of a hybrid electric car with Portable Emission Measurement System （PEMS）during different traffic time to discover the exhaust emission characteristics of the vehicle on urban road.Then the paper analyzes the emission characteristics during peak and non peak traffic time.The analysis of experiment data shows that as for the velocity characteristics,the peak values of hybrid electric cars＇average emission rate and average emission factors during the CO、NOx and HC during peak traffic time appear in low velocity regions,while the peak values during nonpeak traffic time appear in the beginning regions when the engine starts;as for the Vehicle Specific Power（VSP） characteristics,the peak values of hydrid electric cars＇ average emission rate and average emission factors in high VSP regions are larger than the values in low and negative VSP regions during both traffic time.Although the traffic jam increases the traveling time, of hybrid electric car reduces the low speed traveling time of pure electric driving time,therefore,the emission doesn＇t increase.

关 键 词：混合动力轿车 尾气排放 通行时段 市区道路 

分 类 号：X831[环境科学与工程—环境工程]