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    Method to diagnose an exhaust gas sensor disposed in an exhaust gas region of an internal combustion engine and device to implement the method
    6.
    发明授权
    Method to diagnose an exhaust gas sensor disposed in an exhaust gas region of an internal combustion engine and device to implement the method 有权
    用于诊断设置在内燃机的排气区域中的废气传感器和装置的方法

    公开(公告)号：US07913550B2

    公开(公告)日：2011-03-29

    申请号：US12028545

    申请日：2008-02-08

    申请人： Jochen Schoenthaler ,  Stefan Wickert

    发明人： Jochen Schoenthaler ,  Stefan Wickert

    IPC分类号： G01M15/10

    CPC分类号： F02D41/222 ,  F01N3/2066 ,  F01N2560/026 ,  F02D41/146 ,  F02D41/1463 ,  F02D41/187 ,  F02D2041/0075 ,  F02D2200/1012 ,  Y02T10/40

    摘要： A method to diagnose an exhaust gas sensor disposed in the exhaust gas region of an internal combustion engine, wherein provision is made for a comparison of a measurement for at least one exhaust gas component with a measurement of the exhaust gas component, which is ascertained on the basis of an exhaust gas sensor signal, and a device to implement the method are proposed. The diagnosis is only implemented if a change in at least one operating parameter of the internal combustion engine and/or at least one parameter of the exhaust gas is detected during the running operation of the internal combustion engine. Provision is made in the diagnosis for an averaging of the measurement for at least the one exhaust gas component as well as of the measurement for the exhaust gas component, which is provided by the exhaust gas sensor. Provision is additionally made for a subsequent comparison of the two averages and for an error signal to be provided if the difference of the two averages exceeds a difference threshold value. The procedural approach allows for the diagnosis to occur without a diagnostic intervention into the operation of the internal combustion engine and without an intervention into an open-loop control, which if need be is present, for the metering of a reagent substance, which is introduced into the exhaust gas region of the internal combustion engine to convert at least one exhaust gas component.

    摘要翻译： 一种用于诊断设置在内燃机的排气区域中的废气传感器的方法，其中提供用于比较至少一种废气组分的测量和排气组分的测量，所述测量被确定在 提出了排气传感器信号的基础，以及实现该方法的装置。 只有在内燃机的运行操作期间检测到内燃机的至少一个操作参数和/或废气的至少一个参数的变化时，才实现诊断。 在对排气传感器提供的至少一个废气成分的测量以及排气组分的测量的平均化进行诊断时进行了规定。 另外为两个平均值的后续比较以及两个平均值的差值超过差值阈值而提供的误差信号另外设定。 程序方法允许在没有对内燃机的操作的诊断干预的情况下进行诊断，并且不介入开环控制（如果需要的话），用于测量引入的试剂物质 进入内燃机的废气区域以转化至少一个排气组分。

    Method for operating an internal combustion engine and a device for carrying out the method
    7.
    发明授权
    Method for operating an internal combustion engine and a device for carrying out the method 有权
    用于操作内燃机的方法和用于执行该方法的装置

    公开(公告)号：US07428809B2

    公开(公告)日：2008-09-30

    申请号：US11236183

    申请日：2005-09-26

    申请人： Stefan Wickert ,  Torsten Handler ,  Dirk Samuelsen ,  Christian Walz

    发明人： Stefan Wickert ,  Torsten Handler ,  Dirk Samuelsen ,  Christian Walz

    IPC分类号： F01N3/00 ,  F01N3/10 ,  F02M25/06

    CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/08 ,  Y02T10/24

    摘要： A method for operating an internal combustion engine; in the exhaust area of this engine there is at least one catalytic converter and downstream from the catalytic converter there is an NOx sensor. A device for carrying out this method is also provided. The NOx sensor has a cross-sensitivity to a reagent needed in the catalytic converter. In predefined operating states of the internal combustion engine, e.g., idling and/or overrun, a selection signal is supplied; when this selection signal occurs, the sensor signal supplied by the NOx sensor is interpreted as at least a measure of the reagent leakage.

    摘要翻译： 一种操作内燃机的方法; 在该发动机的排气区域中存在至少一个催化转化器，并且在催化转化器的下游具有NOx传感器。 还提供了一种用于执行该方法的装置。 NOx传感器对催化转化器中所需的试剂具有交叉敏感性。 在内燃机的预定操作状态下，例如空转和/或溢出，提供选择信号; 当该选择信号发生时，由NOx传感器提供的传感器信号被解释为试剂泄漏的至少一个量度。

    Method to diagnose an exhaust gas sensor disposed in the exhaust gas region of an internal combustion engine and device for the implementation of the method
    8.
    发明申请
    Method to diagnose an exhaust gas sensor disposed in the exhaust gas region of an internal combustion engine and device for the implementation of the method 有权
    用于诊断设置在内燃机的排气区域中的废气传感器的方法和用于实施该方法的装置

    公开(公告)号：US20080148830A1

    公开(公告)日：2008-06-26

    申请号：US11904763

    申请日：2007-09-27

    申请人： Stefan Wickert ,  Jochen Schoenthaler

    发明人： Stefan Wickert ,  Jochen Schoenthaler

    IPC分类号： G01M15/04

    CPC分类号： F02D41/222 ,  F01N2560/02 ,  F02D41/1408 ,  F02D41/1445 ,  F02D41/146 ,  Y02T10/40

    摘要： A method to diagnose an exhaust gas sensor (16) disposed in an exhaust gas region (13) of an internal combustion engine (10), whereby a test is made at said sensor to determine whether a change of at least one exhaust gas component, which is detectable by the exhaust gas sensor (16), results in an expected change of the sensor signal (s_Mes), and a device for the implementation of the method are proposed. The diagnosis is only implemented if a specified change in at least one operating parameter (Md, n, agr) of the internal combustion engine (10) and/or at least one parameter (ms_Abg, NOx, ms_NOx) of the exhaust gas in the running operation of the internal combustion engine (10) are detected.The procedural approach allows for a diagnosis without a diagnostic intervention into the operation of the internal combustion engine (10) and without a diagnostic intervention into a metering control system, which if necessary is present and which controls a metering of a reagent substance into the exhaust gas region (13) of the internal combustion engine (10).

    摘要翻译： 一种用于诊断设置在内燃机（10）的排气区域（13）中的废气传感器（16）的方法，由此在所述传感器处进行测试，以确定是否改变至少一个排气组分， 其可被排气传感器（16）检测到，导致传感器信号（s_Mes）的预期变化，并且提出了用于实现该方法的装置。 只有在内燃机（10）的至少一个操作参数（Md，n，agr）和/或至少一个参数（ms_Abg，NOx，ms_NOx）中的指定变化和 检测内燃机（10）的运转动作。 该程序方法允许在没有对内燃机（10）的操作的诊断干预的情况下进行诊断，并且没有对计量控制系统的诊断干预，如果需要，其存在并且控制将试剂物质计量到排气中 内燃机（10）的气体区域（13）。

    METHOD TO DIAGNOSE AN EXHAUST GAS SENSOR DISPOSED IN AN EXHAUST GAS REGION OF AN INTERNAL COMBUSTION ENGINE AND DEVICE TO IMPLEMENT THE METHOD
    10.
    发明申请
    METHOD TO DIAGNOSE AN EXHAUST GAS SENSOR DISPOSED IN AN EXHAUST GAS REGION OF AN INTERNAL COMBUSTION ENGINE AND DEVICE TO IMPLEMENT THE METHOD 有权
    用于诊断在内燃机的排气区域中排出的排气传感器的方法和实现该方法的装置

    公开(公告)号：US20090044612A1

    公开(公告)日：2009-02-19

    申请号：US12028545

    申请日：2008-02-08

    申请人： Jochen Schoenthaler ,  Stefan Wickert

    发明人： Jochen Schoenthaler ,  Stefan Wickert

    IPC分类号： F01N11/00

    CPC分类号： F02D41/222 ,  F01N3/2066 ,  F01N2560/026 ,  F02D41/146 ,  F02D41/1463 ,  F02D41/187 ,  F02D2041/0075 ,  F02D2200/1012 ,  Y02T10/40

    摘要： A method to diagnose an exhaust gas sensor disposed in the exhaust gas region of an internal combustion engine, wherein provision is made for a comparison of a measurement for at least one exhaust gas component with a measurement of the exhaust gas component, which is ascertained on the basis of an exhaust gas sensor signal, and a device to implement the method are proposed. The diagnosis is only implemented if a change in at least one operating parameter of the internal combustion engine and/or at least one parameter of the exhaust gas is detected during the running operation of the internal combustion engine. Provision is made in the diagnosis for an averaging of the measurement for at least the one exhaust gas component as well as of the measurement for the exhaust gas component, which is provided by the exhaust gas sensor. Provision is additionally made for a subsequent comparison of the two averages and for an error signal to be provided if the difference of the two averages exceeds a difference threshold value. The procedural approach allows for the diagnosis to occur without a diagnostic intervention into the operation of the internal combustion engine and without an intervention into an open-loop control, which if need be is present, for the metering of a reagent substance, which is introduced into the exhaust gas region of the internal combustion engine to convert at least one exhaust gas component.

    摘要翻译： 一种用于诊断设置在内燃机的排气区域中的废气传感器的方法，其中提供用于比较至少一种废气组分的测量和排气组分的测量，所述测量被确定在 提出了排气传感器信号的基础，以及实现该方法的装置。 只有在内燃机的运行操作期间检测到内燃机的至少一个操作参数和/或废气的至少一个参数的变化时，才实现诊断。 在对排气传感器提供的至少一个废气成分的测量以及排气组分的测量的平均化进行诊断时进行了规定。 另外为两个平均值的后续比较以及两个平均值的差值超过差值阈值而提供的误差信号另外设定。 程序方法允许在没有对内燃机的操作的诊断干预的情况下进行诊断，并且不介入开环控制（如果需要的话），用于测量引入的试剂物质 进入内燃机的废气区域以转化至少一个排气组分。