关于中国在用汽车排污控制的若干问题——汽油车部分

About Some Important Issues for In-Use Vehicle Emission Control——the gasoline vehicle

文章结合《点燃式发动机汽车排气污染物排放限值及测量方法(双怠速法及简易工况法)》(GB18285-2005)修订中的重大问题阐述中国在用汽油车排气烟度控制方面的新要求。主要包括:增加高怠速排污检测、对电喷汽车增加过量空气系数(λ)的限定、新规定了国1以来的在用汽油车双怠速排放限值、双燃料车要对两种燃料分别检测、对简易工况检测法作了规定、制定简易工况检测法排放限值的基本原则和方法、供地方参考的排放限值等。

The paper is going to expound new requirements of China in -use gasoline vehicle emission control by analyzing important issues from the process of establishing new gasoline vehicle emission standards. Include ： add checking in high idle, en- hance checking and limit of λvalue for EFI vehicle, emission limits of two - speed idle were regulate for EFI vehicle, two fuel were test separately for bi - fuel vehicle, test methods of simple driving mode were added, the principle and method of confirm limits for exhaust pollutants in simple driving mode, offer reference exhaust limits to meet local requirement, and so on.