汽车标定用失效催化器排放劣化指标课件.pdf

1 3 2 1 1 1 1 2 3 []OBD Research on Emission Deterioration Index Conformance for Catalytic Converter Disabled Sample 1 3 1 2 1 1 Ye Hongling , LiJun , Wang Wuling , Li Chao Ren Meilin 1 2 Tianjin SwARC Automotive Research Laboratory Co.,Ltd China Automotive Technology 3 Research Center Anhui Agriculture University Abstract : Based on the mechanism of catalyst deactivation at high temperature, OBD catalytic converter disabled sample preparation process was studied. Its preparation process was complex, and the method was not yet uniform in all major company. It was detailed to expound the catalyst oxygen storage capacity test which was a part of catalytic converter disabled sample preparation in the article. Furthermore, conformance between catalyst OSC after different aging stage and emission deteriorate was analysed. Key words: Disabled sampleCatalystOxygen storage capacity Preparation Emission deterioration 1 2005 12 30 III 2007 7 1 III(1) II50 (2)(OBD) OBD-On Board Diagnostic OBD 1 2 [1] PtRh Al O 2 3 [2] OBD 2.1 1 1 [3] 40 [4]