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公开(公告)号：US20110137542A1
公开(公告)日：2011-06-09
申请号：US12765081
申请日：2010-04-22
CPC分类号： F02D41/1439 , F02D9/04 , F02D41/0065 , F02D41/1408 , F02D41/146 , F02D41/1466 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.
摘要翻译： 描述了一种操作发动机系统的方法，其中在EGR操作期间可以以较低的频率调制低压EGR系统的背压阀，并且在需要额外的废气感测时以较高的频率进行调节。 因此，背压阀调节可用于在提供EGR时促进排气混合。 然后可以通过下游排气传感器以更高的精度感测混合废气中的废气成分。
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公开(公告)号：US07945377B1
公开(公告)日：2011-05-17
申请号：US12765081
申请日：2010-04-22
CPC分类号： F02D41/1439 , F02D9/04 , F02D41/0065 , F02D41/1408 , F02D41/146 , F02D41/1466 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.
摘要翻译： 描述了一种操作发动机系统的方法，其中在EGR操作期间可以以较低的频率调制低压EGR系统的背压阀，并且在需要额外的废气感测时以较高的频率进行调节。 因此，背压阀调节可用于在提供EGR时促进排气混合。 然后可以通过下游排气传感器以更高的精度感测混合废气中的废气成分。
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公开(公告)号：US08200414B2
公开(公告)日：2012-06-12
申请号：US13101803
申请日：2011-05-05
CPC分类号： F02D41/1439 , F02D9/04 , F02D41/0065 , F02D41/1408 , F02D41/146 , F02D41/1466 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.
摘要翻译： 描述了一种操作发动机系统的方法，其中在EGR操作期间可以以较低的频率调制低压EGR系统的背压阀，并且在需要额外的废气感测时以较高的频率进行调节。 因此，背压阀调节可用于在提供EGR时促进排气混合。 然后可以通过下游排气传感器以更高的精度感测混合废气中的废气成分。
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公开(公告)号：US20110259305A1
公开(公告)日：2011-10-27
申请号：US13101803
申请日：2011-05-05
IPC分类号： F02M25/07
CPC分类号： F02D41/1439 , F02D9/04 , F02D41/0065 , F02D41/1408 , F02D41/146 , F02D41/1466 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , Y02T10/47
摘要： A method of operating an engine system is described in which a back-pressure valve of a low pressure EGR system can be modulated at a lower frequency during an EGR operation, and at a higher frequency when additional exhaust gas sensing is requested. Back-pressure valve modulation can therefore be used to promote exhaust gas mixing while providing EGR. Exhaust gas constituents in the mixed exhaust gas can then be sensed with higher accuracy by downstream exhaust gas sensors.
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公开(公告)号：US08448511B2
公开(公告)日：2013-05-28
申请号：US12643575
申请日：2009-12-21
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
IPC分类号： G01N27/12
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, particulate sensor degradation is indicated in response to an output of said particulate matter sensor staying below a threshold as engine temperature increases past the dewpoint temperature.
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公开(公告)号：US08438899B2
公开(公告)日：2013-05-14
申请号：US12643568
申请日：2009-12-21
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, degradation of a particulate matter sensor is indicated after a temperature of a substrate of the particulate matter sensor exceeds a threshold temperature and an output of the particulate matter sensor is below a threshold value.
摘要翻译： 提出了一种用于改善具有颗粒物质传感器的发动机的操作的系统。 该系统可用于在冷启动期间改善发动机运行，特别是在车辆废气中存在水蒸气或夹带水滴的情况下。 在一个实施例中，在颗粒物质传感器的基底的温度超过阈值温度并且颗粒物质传感器的输出低于阈值之后指示颗粒物质传感器的劣化。
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公开(公告)号：US08136343B2
公开(公告)日：2012-03-20
申请号：US12643563
申请日：2009-12-21
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
IPC分类号： F01N3/00
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, an engine controller that activates a heater of an exhaust gas sensor after an output of a particulate matter sensor exceeds a threshold value after an engine is started.
摘要翻译： 提出了一种用于改善具有颗粒物质传感器的发动机的操作的系统。 该系统可用于在冷启动期间改善发动机运行，特别是在车辆废气中存在水蒸气或夹带水滴的情况下。 在一个实施例中，在发动机起动之后，在颗粒物质传感器的输出超过阈值之后激活排气传感器的加热器的发动机控制器。
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公开(公告)号：US20110047985A1
公开(公告)日：2011-03-03
申请号：US12643563
申请日：2009-12-21
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, an engine controller that activates a heater of an exhaust gas sensor after an output of a particulate matter sensor exceeds a threshold value after an engine is started.
摘要翻译： 提出了一种用于改善具有颗粒物质传感器的发动机的操作的系统。 该系统可用于在冷启动期间改善发动机运行，特别是在车辆废气中存在水蒸气或夹带水滴的情况下。 在一个实施例中，在发动机起动之后，在颗粒物质传感器的输出超过阈值之后激活排气传感器的加热器的发动机控制器。
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公开(公告)号：US08707678B2
公开(公告)日：2014-04-29
申请号：US13423049
申请日：2012-03-16
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, Jr. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
IPC分类号： F01N3/00
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, an engine controller that activates a heater of an exhaust gas sensor after an output of a particulate matter sensor exceeds a threshold value after an engine is started.
摘要翻译： 提出了一种用于改善具有颗粒物质传感器的发动机的操作的系统。 该系统可用于在冷启动期间改善发动机运行，特别是在车辆废气中存在水蒸气或夹带水滴的情况下。 在一个实施例中，在发动机起动之后，在颗粒物质传感器的输出超过阈值之后激活排气传感器的加热器的发动机控制器。
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公开(公告)号：US20120174564A1
公开(公告)日：2012-07-12
申请号：US13423049
申请日：2012-03-16
申请人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, JR. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
发明人： Garry Anthony Zawacki , Robert F. Novak , Roberto Teran, JR. , Dave Charles Weber , Michiel J. Van Nieuwstadt , Michael Hopka , William Charles Ruona
IPC分类号： F01N11/00
CPC分类号： G01N33/0006 , F01N2560/05 , F02D41/1494 , F02D41/222 , G01N15/0656 , Y02T10/40
摘要： A system for improving operation of an engine having a particulate matter sensor is presented. The system may be used to improve engine operation during cold starts especially under conditions where water vapor or entrained water droplets are present in vehicle exhaust gases. In one embodiment, an engine controller that activates a heater of an exhaust gas sensor after an output of a particulate matter sensor exceeds a threshold value after an engine is started.
摘要翻译： 提出了一种用于改善具有颗粒物质传感器的发动机的操作的系统。 该系统可用于在冷启动期间改善发动机运行，特别是在车辆废气中存在水蒸气或夹带水滴的情况下。 在一个实施例中，在发动机起动之后，在颗粒物质传感器的输出超过阈值之后激活排气传感器的加热器的发动机控制器。
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