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公开(公告)号：US09074513B2
公开(公告)日：2015-07-07
申请号：US13352885
申请日：2012-01-18
CPC分类号： F01N11/00 , F02D41/1441 , F02D41/1474 , F02D41/1495 , F02D2041/1431 , F02D2041/286
摘要： A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on characteristics of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.
摘要翻译： 提供一种用于监测联接在发动机排气中的废气传感器的方法。 在一个实施例中，该方法包括基于在选择的操作条件期间收集的多组λ差分的极值的分布的特性来指示废气传感器劣化。 以这种方式，废气传感器可以以非侵入的方式被监视。
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公开(公告)号：US20130180510A1
公开(公告)日：2013-07-18
申请号：US13352931
申请日：2012-01-18
CPC分类号： F02D41/1495 , F02D2041/1423 , F02D2041/1431 , F02D2041/1433
摘要： A method of monitoring an exhaust gas sensor coupled in an engine exhaust is provided. The method comprises indicating exhaust gas sensor degradation based on a difference between a first set of estimated parameters of a rich operation model and a second set of estimated parameters of a lean operation model, the estimated parameters based on commanded lambda and determined lambda values collected during selected operating conditions. In this way, sensor degradation may be indicated with data collected in a non-intrusive manner.
摘要翻译： 提供了一种监测联接在发动机排气中的废气传感器的方法。 该方法包括基于富运行模型的第一组估计参数与稀薄运行模型的估计参数的第二组之间的差异来指示排气传感器退化，基于指令λ和所确定的λ值的估计参数 选定的运行条件。 以这种方式，可以用非侵入式收集的数据来指示传感器劣化。
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公开(公告)号：US08958974B2
公开(公告)日：2015-02-17
申请号：US13352931
申请日：2012-01-18
IPC分类号： F02D41/14
CPC分类号： F02D41/1495 , F02D2041/1423 , F02D2041/1431 , F02D2041/1433
摘要： A method of monitoring an exhaust gas sensor coupled in an engine exhaust is provided. The method comprises indicating exhaust gas sensor degradation based on a difference between a first set of estimated parameters of a rich operation model and a second set of estimated parameters of a lean operation model, the estimated parameters based on commanded lambda and determined lambda values collected during selected operating conditions. In this way, sensor degradation may be indicated with data collected in a non-intrusive manner.
摘要翻译： 提供了一种监测联接在发动机排气中的废气传感器的方法。 该方法包括基于富运行模型的第一组估计参数与稀薄运行模型的估计参数的第二组之间的差异来指示排气传感器退化，基于指令λ和所确定的λ值的估计参数 选定的运行条件。 以这种方式，可以用非侵入式收集的数据来指示传感器劣化。
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公开(公告)号：US20130180509A1
公开(公告)日：2013-07-18
申请号：US13352885
申请日：2012-01-18
CPC分类号： F01N11/00 , F02D41/1441 , F02D41/1474 , F02D41/1495 , F02D2041/1431 , F02D2041/286
摘要： A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on characteristics of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.
摘要翻译： 提供一种用于监测联接在发动机排气中的废气传感器的方法。 在一个实施例中，该方法包括基于在选择的操作条件期间收集的多组λ差分的极值的分布的特性来指示废气传感器劣化。 以这种方式，废气传感器可以以非侵入的方式被监视。
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