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69 条记录 (耗时 0.027 秒)

    On-board diagnostic catalyst monitoring system
    66.
    发明授权
    On-board diagnostic catalyst monitoring system 失效
    车载诊断催化剂监测系统

    公开(公告)号：US06532734B1

    公开(公告)日：2003-03-18

    申请号：US10062384

    申请日：2002-02-01

    申请人： David Robert Nader ,  Michael Igor Kluzner ,  Michael Daniel Shane ,  Michael James Uhrich ,  Robert Joseph Jerger

    发明人： David Robert Nader ,  Michael Igor Kluzner ,  Michael Daniel Shane ,  Michael James Uhrich ,  Robert Joseph Jerger

    IPC分类号： F01N300

    CPC分类号： F01N11/007 ,  F01N2550/02 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/1474 ,  F02D41/1495 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0802 ,  Y02T10/47

    摘要： A method for determining the effectiveness of a catalyst having both first, relatively high oxidizable material provided to remove emissions from the exhaust of an internal combustion engine and a second, relatively low oxidizable material provided to remove emissions from such exhaust. The method includes measure a difference in oxygen content upstream and downstream of the catalyst while the engine is producing the exhaust to determine the effectiveness of the first material and determining the effectiveness of the second material by comparing time delay in a property of the exhaust as such exhaust passes through the catalyst. In one embodiment, the property of the exhaust is the oxygen content in such exhaust. In one embodiment, the effectiveness of the second material is measured after the first material is determined to be ineffective.

    摘要翻译： 一种用于确定催化剂的有效性的方法，所述催化剂具有提供用于去除来自内燃机的排气的排放物的第一相对较高的可氧化材料和提供用于去除来自这种排气的排放物的第二，较低的可氧化材料。 该方法包括测量催化剂上游和下游的氧含量的差异，同时发动机产生排气以确定第一材料的有效性并且通过比较排气性质的时间延迟来确定第二材料的有效性 排气通过催化剂。 在一个实施例中，排气的性质是这种排气中的氧含量。 在一个实施例中，在确定第一材料无效之后测量第二材料的有效性。

    Engine Control Method and System
    67.
    发明申请
    Engine Control Method and System 审中-公开
    发动机控制方法与系统

    公开(公告)号：US20100263639A1

    公开(公告)日：2010-10-21

    申请号：US12426630

    申请日：2009-04-20

    申请人： Michael James Uhrich ,  Gopichandra Surnilla

    发明人： Michael James Uhrich ,  Gopichandra Surnilla

    IPC分类号： F02B33/00

    CPC分类号： F02D41/0007 ,  F02D41/025 ,  F02D41/0255 ,  F02D41/405 ,  Y02T10/144 ,  Y02T10/26

    摘要： Methods and systems are provided for operating a vehicle engine including an intake and an exhaust, the engine further including a boosting device configured to provide a boosted air charge to the engine intake. One example method comprises, during an engine cold start, operating the engine with positive intake to exhaust valve overlap, driving a compressor of the boosting device at least partially via a motor to generate blow-through air flow into the engine exhaust through cylinders of the engine, and exothermically reacting a reductant with the blow-through air flow in the exhaust.

    摘要翻译： 提供了用于操作包括进气和排气的车辆发动机的方法和系统，所述发动机还包括被配置为向所述发动机进气口提供增压空气装料的升压装置。 一个示例性方法包括在发动机冷启动期间，以正进气到排气门重叠操作发动机，至少部分地通过马达驱动升压装置的压缩机，以产生通过气缸 发动机，并使还原剂与排气中的吹气空气流放热反应。

    Engine catalyst monitor
    68.
    发明授权
    Engine catalyst monitor 失效
    发动机催化剂监测仪

    公开(公告)号：US06581371B1

    公开(公告)日：2003-06-24

    申请号：US10079351

    申请日：2002-02-20

    申请人： Daniel V Orzel ,  Michael James Uhrich ,  Theodore Michael Kostek

    发明人： Daniel V Orzel ,  Michael James Uhrich ,  Theodore Michael Kostek

    IPC分类号： F01N300

    CPC分类号： F01N11/007 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N13/107 ,  F01N2550/02 ,  Y02T10/47

    摘要： A method for determining a condition of a catalyst disposed in an exhaust of an engine. The method includes sensing a common property of both the exhaust upstream and downstream of the catalyst; taking samples of such upstream and downstream sensed property over a period of time; accumulating the samples over the period of time; determining statistical characteristics of the sensed common property of the upstream and downstream common property; comparing the determined statistical characteristics of the sensed upstream property with the determined statistical characteristics of the downstream property to determine whether catalyst was in a proper operating condition during such period of time. With such method statistical characteristics are determined from samples as they are obtained and then once obtained, processed to determine the condition of the catalyst. Such method thereby reduces memory or data storage requirements and also reduces computational requirements.

    摘要翻译： 一种用于确定设置在发动机的排气中的催化剂的状态的方法。 该方法包括检测催化剂上游和下游的废气的共同性质; 在一段时间内取样上游和下游检测属性; 在一段时间内积累样品; 确定所感知的上游和下游共同财产的共同财产的统计特征; 将确定的上游性质的统计特征与确定的下游性质的统计特征进行比较，以确定催化剂在这样的时间段内是否处于适当的操作状态。 使用这种方法，从获得的样品中确定统计特征，然后一次获得，进行处理以确定催化剂的条件。 这样的方法从而减少了存储器或数据存储要求并且还减少了计算要求。