重型车实际道路排放监控测试方法对比研究  

A Comparison Study on the Supervision and Test Methods for Heavy-duty Vehicle On-road Emissions

作　　者：任烁今 曹宏林 郭冬冬 李腾腾 邵鹏飞 张凡 REN Shuojin;CAO Honglin;GUO Dongdong;LI Tengteng;SHAO Pengfei;ZHANG Fan(CATARC Automotive Test Center(Tianjin)Co.,Ltd.,Tianjin,300300,China;Beijing Municipal Vehicle Emission Management Center;China Automotive Technology(Beijing)Co.,Ltd.)

机构地区：[1]中汽研汽车检验中心(天津)有限公司,天津300300 [2]北京市机动车排放管理事务中心 [3]中汽科技(北京)有限公司

出　　处：《小型内燃机与车辆技术》2022年第6期40-45,共6页Small Internal Combustion Engine and Vehicle Technique

摘　　要：对6辆重型车辆的实际道路运行过程同时进行了便携式排放测试系统(PEMS)测试、NO_(x)快速测试和排放远程监控,并利用最小二乘法对三种测试方法的数据进行了对比分析。研究结果表明,PEMS测试、NO_(x)快速测试和排放远程监控三种测试方法之间的瞬态结果数据一致性较好,均可以作为重型车实际道路排放的有效监控测试方法。NO_(x)快速测试过程中应该更加关注车辆加速过程的NO_(x)排放。所采用的NO_(x)快速检测仪的数据丢失比例大约为3%。因此,NO_(x)快速测试应开展多次重复试验,以降低数据丢失导致的误判可能性。Six heavy-duty vehicles were selected for the on-road test with a portable emission measure-ment system(PEMS), a NO_(x)quick test device and the emission remote supervision system. Comparison analysis was performed for the measurement results using the least-square method. The results show that strong data consistency could be found between the PEMS test, the NO_(x)quick test and the emission remote supervision, indicating that all these three methods are effective for heavy-duty vehicle on-road supervision and test. It was also found that more attention should be paid to the NO_(x)emissions during the accelerating process in the NO_(x)quick test. The data loss ratio was about 3% for the NO_(x)quick test device used in this study. Therefore, the NO_(x)quick tests should be repeated for several times to avoid misjudge caused by the data loss.

关 键 词：PEMS 远程监控 快速测试 重型车 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]