摘要
以1辆满足国五排放标准的轻型汽油车为试验样车,以三种不同含硫量的汽油为燃料,分别在FTP75和US06测试循环下,使用全流稀释排放测试系统对车辆N_2O排放的影响因素进行了研究。研究结果表明:测试工况会对车辆的N_2O排放产生影响,在冷起动工况的开始阶段,由于催化剂没有达到正常的工作温度,车辆会产生较多的N_2O排放;无论何种工况,随着燃油硫含量的增加,车辆的N_2O排放呈现上升的趋势;随着车辆里程的不断增加,车辆的N_2O排放存在一定程度的劣化。
A light-duty gasoline vehicle with meeting fifth stage emission standard is used to do a study on the effect factors of N2O emission, using three kinds of gasoline with different sulfur contents. The full flow dilution emission test system is applied under the FTP75 and US06 test cycle. The results show that the test condition has an influence on N2O emission. The vehicle will produce more N2O emission during the cold start phase because the catalyst does not meet the normal operating temperature. For all test cycles, there will be more N2O emission when sulfur content of the fuel increases. Furthermore, with the increasing of vehicle mileage, there is a certain degree of deterioration on the N2O emission.
出处
《汽车科技》
2017年第4期21-24,共4页
Auto Sci-Tech
关键词
N2O排放
工况
硫含量
里程
N2O Emission
Condition
Sulfur Content
Mileage
