遥感法与高怠速法尾气排放状况对照检测试验研究

摘要

募集100辆点燃式发动机在用汽车进行遥感法和高怠速法尾气排放对照检测试验.结果表明,多数车辆CO遥测值比高怠速值大,HC则相反.通过对高怠速值(y)与遥测值(x)进行回归分析,得到CO的回归方程为y=0.81x +453.03,t检验显示方程具有线性(α=0.10).如果将两种方法配合使用,可以有效提高机动车尾气排放日常管理的效果.%A comparison testing experiment was designed to study the states of exhaust pollutants under the remote sensing conditions and the high-speed idle conditions, using 100 in-use cars equipped with spark ignition engine. For CO discharged by the majority of cars, the remote sensing value is bigger than the high-speed idle value while the value of HC show the reverse trend. According to regression analysis comparing the high-speed idle value (γ) and remote sensing value (x) , the obtained regression equation of CO is y = 0. 81x+453.03. The result from T-test show the linearity of the high-speed idle value (γ) and remote sensing test value(x) is significant (α=0. 10). Match usage of these methods can raise the effect of vehicle exhausts emission daily management.