基于轻型汽油车的燃油蒸发控制系统泄漏测试研究  

Study on Leakage Test of Fuel Evaporation Control System Based on Light-duty Gasoline Vehicle

作　　者：鲁君[1,2] 黄成 修光利 马东翔[3] 李勇志 梁兆锋 赖勇生 LU Jun;HUANG Cheng;XIU Guang-li;MA Dong-xiang;LI Yong-zhi;LIANG Zhao-feng;LAI Yong-sheng(State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Processes,East China University of Science and Technology,Shanghai 200237,China;Shanghai Academy of Environmental Science,State Environmental Protection Key Laboratory of Formation and Prevention of Urban Atmospheric Compound Pollution,Shanghai 200233,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;South China Instrument Co.,Ltd.,Foshan,Guangdong 528200,China)

机构地区：[1]华东理工大学国家环境保护化工过程环境风险评价与控制重点实验室,上海200237 [2]上海市环境科学研究院,国家环境保护城市大气复合污染成因与防治重点实验室,上海200233 [3]上海理工大学能源与动力工程学院,上海市动力工程多相流动与传热重点实验室,上海200093 [4]上海工程技术大学机械与汽车工程学院,上海201620 [5]南华仪器股份有限公司,广东佛山528200

出　　处：《环境监测管理与技术》2022年第3期45-48,共4页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金资助项目(21777101);国家重点研发计划基金资助项目(2018YFC0213800)。

摘　　要：在某特大城市机动车检验站筛选了123台轻型汽油车,依据《汽油车污染物排放限值及测量方法(双怠速法及简易工况法)》(GB 18285—2018)开展燃油蒸发控制系统泄漏测试,定量研究典型车型的燃油蒸发系统的现状及泄漏原因。结果表明,由于燃油系统硬管连接或碳罐遮挡造成无法进行后续泄漏测试的车辆约占14%;油箱盖加压测试合格率为95%;不合格车辆主要为10 a以上老旧车辆,合格车辆中加压损失与年均行驶里程(VKT)呈正相关,VKT每增加1000 km,油箱盖压力损失约为9.9 Pa;加油口加压测试显示,各排放阶段(除国六外)的合格率为44%~75%。123 light-duty gasoline vehicles were selected at a motor vehicle inspection station in a mega-city,the leakage test of fuel evaporation control system was carried out for quantitatively studying the current situation and leakage causes of fuel evaporation system of typical vehicle model,according to"Limits and measurement methods for emissions from gasoline vehicles under two-speed idle conditions and short driving mode conditions"(GB 18285—2018).The results showed that about 14% of tested vehicles were unable to undergo subsequent leakage test due to hard pipe connection or carbon canister blocking of the fuel system.The qualified rate of pressure test of fuel tank cap was 95%.Unqualified vehicles were mainly older than 10 years.The pressure loss of qualified vehicles were positively correlated with their average annual mileage(VKT).The pressure loss of fuel tank cap was about 9.9 Pa for every 1000 km increase of VKT.The pressure test of the oil filler showed that the qualified rate of each emission section(except ChinaⅥ)was between 44%and 75%.

关 键 词：轻型汽油车 燃油蒸发 控制系统 泄漏测试 

分 类 号：X511[环境科学与工程—环境工程]