摘要
汽车排放污染物中的HC和NOx主要来源于汽油车,因此,有效地在线监测催化器的技术状况并对其进行维护和保养是有必要的。文章在分析催化转化器失效机理的基础上,对比分析了储氧能力法、排放组分传感器法和反应热法等几种典型的效率监测方法,为检测维护(I/M)制度的实施提供技术方法支持。
HC and NOx are mainly derived from gasoline vehicle. Therefore, it is necessary to effectively monitor the technical status of the catalyst converter and maintain it.Based on the analysis of the failure mechanism of the catalyst converter, in this paper, several typical efficiency monitoring methods, such as the capacity of the oxygen storage capacity, the emission components and the reaction heat, are analyzed, and the technical support is provided for the implementation of the inspection and maintenance（I/M） system.
出处
《汽车实用技术》
2016年第1期61-64,共4页
Automobile Applied Technology
基金
陕西省教育厅2014年专项科研计划项目(14JK1066)
关键词
催化转化器
失效机理
效率
监测方法
Catalyst converter
Failure mechanism
Efficiency
Monitoring methods
