加油排放试验程序设计和车载油气回收系统开发建议.pdfVIP

学兔兔 汽 车 工 程 2014年(第36卷)第5期 Automotive Engineering 2014100 加油排放试验程序的设计和车载油气回收 系统开发的建议 杜建波 ，方茂东 ，陆红雨 ，李菁元 ，王小臣 ，汤大钢 (1．中国汽车技术研究中心，天津 300300；2．中国环境科学研究院，北京 100012) [摘要] 借鉴美国EPA的加油排放试验程序，根据NEDC对预处理工况进行转化，设计了适合我国汽车排放 标准体系的加油排放试验程序。对两辆带车载油气回收(ORVR)系统的样车分别按照设计的试验程序和EPA法规 进行加油排放验证试验，结果表明：经本试验程序预处理的炭罐脱附水平与EPA法规基本等效，测试结果均满足 EPA法规限值要求，油气回收率超过99％。通过对实际加油排放的影响因素进行分析，对ORVR系统的开发提出 了针对性的建议。 关键词：加油排放试验；车载油气回收系统；炭罐 Design of Refueling Emission Test Procedures and Suggestions on the Development of Onboard Refueling Vapor Recovery System Du Jianbo ，Fang Maodong ，Lu Hongyu ，Li Jingyuan ，Wang Xiaochen ＆Tang Dagang 1．China Automotive Technology＆Research Center，Tianjin 300300； 2．Chinese Research Academy of Environmental Sciences，Bering 100012 [Abstract] By using the refueling test procedure of US EPA as reference and transforming the precondition cycles based on NEDC，a refueling test procedure tallying with the vehicle emission standard system in China is de- signed．The refueling emission verification tests on two sample vehicles with onboard refueling vapor recovery(OR- VR)system are conducted as per both the procedure designed and that of US EPA．The resuhs indicate that the de— sorption performance of carbon canister with the designed procedure including precondition cycles basically equiva— lent to that with EPA regulation．All the test results meet the EPA regulation limits with vapor recovery rate excee— ding 99％．The targeted suggestio