发明名称 |
Procedure and device for diagnosing an exhaust gas probe |
摘要 |
A procedure and device for diagnosing the increasing speed and the dead time of an exhaust gas probe includes carrying out the diagnosis by comparing a modeled and a measured signal after a default change of a fuel air ratio of an air fuel mixture that is supplied to a combustion engine. The signal is an output signal of the exhaust gas probe or a modeled or measured signal that is derived from the output signal. The device for diagnosing the velocity and the dead time of an exhaust gas probe also includes a comparing unit for comparing the modeled signal with the measured signal for diagnosing the velocity and the dead time of the exhaust gas probe after a default change of a fuel air ratio of an air fuel mixture that is supplied to the combustion engine. |
申请公布号 |
US8245566(B2) |
申请公布日期 |
2012.08.21 |
申请号 |
US20090571587 |
申请日期 |
2009.10.01 |
申请人 |
WEHMEIER KERSTEN;RUSLI RONALDI;KORING ANDREAS;HOTZEL RICHARD;ROBERT BOSCH GMBH |
发明人 |
WEHMEIER KERSTEN;RUSLI RONALDI;KORING ANDREAS;HOTZEL RICHARD |
分类号 |
G01M15/10 |
主分类号 |
G01M15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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