基于重型车PEMS试验排放影响因子研究

Research on Emission Influencing Factors Based on Heavy-duty Vehicle PEMS Test

通过采用PEMS试验,对重型车实际道路排放影响因子进行分析。试验研究表明,氮氧排放最直接因素是尿素喷射情况;排放温度是尿素喷射控制的关键因素;驾驶激烈程度对排放及排温有着显著影响。

Through the use of PEMS test,the factors affecting the actual road emissions,of heavy vehicles are analyzed.Experimental studies have shown that the most direct factor of nitrogen and oxygen emissions is the urea injection situation;the emission temperature is the key factor for urea injection control;the intensity of driving has a significant impact on emissions and exhaust temperature.