发明授权
- 专利标题: Method and device for diagnosis of an exhaust gas cleaning system
- 专利标题(中): 排气净化系统诊断方法及装置
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申请号: US11666003申请日: 2006-07-20
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公开(公告)号: US07484407B2公开(公告)日: 2009-02-03
- 发明人: Tino Arlt , Krzysztof Korbel , Gerd Rosel
- 申请人: Tino Arlt , Krzysztof Korbel , Gerd Rosel
- 申请人地址: DE Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE Munich
- 优先权: DE102005034880 20050726
- 国际申请: PCT/EP2006/064458 WO 20060720
- 国际公布: WO2007/012597 WO 20070201
- 主分类号: G01M15/00
- IPC分类号: G01M15/00
摘要:
The invention is distinguished by a method and a corresponding device for diagnosis of an individual catalytic converter of an exhaust gas purification unit assigned to an internal combustion engine in the Y configuration, despite the lack of exhaust gas probe between the individual catalytic converter and a main catalytic converter. The diagnosis proceeds on the basis of signals from the exhaust gas probes belonging to the exhaust gas purification unit. On the basis of these signals, the oxygen storage capacity of the individual catalytic converter is determined despite the lack of exhaust gas probe between the individual catalytic converter and the main catalytic converter.
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