发明申请
- 专利标题: DEVICE FOR MONITORING AN EXHAUST GAS CATALYTIC CONVERTER FOR AN INTERNAL COMBUSTION ENGINE
- 专利标题(中): 用于监测用于内燃机的排气变换器的装置
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申请号: US12296817申请日: 2007-04-03
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公开(公告)号: US20100005783A1公开(公告)日: 2010-01-14
- 发明人: Berthold Keppeler , Aleksandar Knezevic , Markus Paule , Detlef Scharr
- 申请人: Berthold Keppeler , Aleksandar Knezevic , Markus Paule , Detlef Scharr
- 申请人地址: DE STUTTGART
- 专利权人: DAIMLER CHRYSLER AG
- 当前专利权人: DAIMLER CHRYSLER AG
- 当前专利权人地址: DE STUTTGART
- 优先权: DE102006016906.9 20060411
- 国际申请: PCT/EP2007/002989 WO 20070403
- 主分类号: F01N11/00
- IPC分类号: F01N11/00
摘要:
A device for monitoring an exhaust gas catalytic converter in the exhaust system of an internal combustion engine, includes a measuring apparatus that is arranged in the exhaust system in such a way that, in the greatest part of the operating range of the internal combustion engine, it assumes a temperature that is correlated with a temperature of the exhaust gas catalytic converter. The measuring apparatus has a temperature-sensitive component with a temperature-dependent characteristic component parameter that changes either abruptly at a predetermined transition temperature or temperature range, or continuously in a predetermined way as a function of the temperature. A control and evaluation unit connected to the measuring arrangement detects the characteristic component parameter and/or a change in the latter, and correlates it with an aging state of the exhaust gas catalytic converter.
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