基于OBD的三效催化转化器失效的诊断研究

Diagnosis to Failure of Three-way Catalytic Converter Based on OBD

介绍OBD系统对三效催化转化器的失效诊断方法,阐述催化转化器的失效模式以及双氧传感器法的原理,最后提出我国实施OBD的催化转化器失效诊断面临的问题。

The author introduces the diagnostic way of the OBD system to the failure of three-way catalytic converter; Describes its failure modes and the principle of the way of dioxygen sensor; Puts forward the facing problems in the diagnosis in our country.