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    Catalytic monitoring method
    2.
    发明授权
    Catalytic monitoring method 失效
    催化监测方法

    公开(公告)号：US06401452B1

    公开(公告)日：2002-06-11

    申请号：US09648055

    申请日：2000-08-25

    申请人： Christopher Kirk Davey ,  Robert Joseph Jerger ,  David Robert Nader ,  Michael Igor Kluzner

    发明人： Christopher Kirk Davey ,  Robert Joseph Jerger ,  David Robert Nader ,  Michael Igor Kluzner

    IPC分类号： F01N300

    CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0421 ,  Y02T10/47

    摘要： A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors respectively, upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.

    摘要翻译： 一种用于具有两个发动机组的发动机的催化监测方法，每个发动机组分别与使用第一和第二排气氧传感器的两个催化转化器中的一个分别耦合到一个催化转化器的上游和下游。 第三和第四废气氧传感器分别耦合在另一个催化转化器的上游和下游。 基于每个上游和下游对排气氧传感器的切换比，确定每个发动机组的开关比。 使用开关比的组合来确定总体催化转化器系统性能。

    Catalytic monitoring method
    4.
    发明授权
    Catalytic monitoring method 失效
    催化监测方法

    公开(公告)号：US6151889A

    公开(公告)日：2000-11-28

    申请号：US175111

    申请日：1998-10-19

    申请人： Christopher Kirk Davey ,  Robert Joseph Jerger ,  David Robert Nader ,  Michael Igor Kluzner

    发明人： Christopher Kirk Davey ,  Robert Joseph Jerger ,  David Robert Nader ,  Michael Igor Kluzner

    IPC分类号： F01N11/00 ,  F01N3/00

    CPC分类号： F01N11/007 ,  F01N2550/02 ,  F01N2900/0421 ,  Y02T10/47

    摘要： A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors, respectively upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.

    摘要翻译： 一种用于具有两个发动机组的发动机的催化监测方法，每个发动机组分别使用分别在一个催化转化器的上游和下游的第一和第二排气氧传感器耦合到两个催化转化器中的一个。 第三和第四废气氧传感器分别耦合在另一个催化转化器的上游和下游。 基于每个上游和下游对排气氧传感器的切换比，确定每个发动机组的开关比。 使用开关比的组合来确定总体催化转化器系统性能。

    Catalytic monitoring method
    5.
    发明授权
    Catalytic monitoring method 有权
    催化监测方法

    公开(公告)号：US6138452A

    公开(公告)日：2000-10-31

    申请号：US263457

    申请日：1999-03-05

    申请人： Christopher Kirk Davey ,  Michael Igor Kluzner ,  Robert Roy Jentz ,  Robert Joseph Jerger

    发明人： Christopher Kirk Davey ,  Michael Igor Kluzner ,  Robert Roy Jentz ,  Robert Joseph Jerger

    IPC分类号： F01N11/00 ,  F01N13/04 ,  F01N13/10 ,  F02D41/14 ,  F01N3/00

    CPC分类号： F02D41/1443 ,  F01N11/007 ,  F01N13/011 ,  F01N13/107 ,  F01N2550/02 ,  F01N2900/0421 ,  F02D41/1456 ,  Y02T10/47

    摘要： An adaptive catalytic monitoring method for an engine having two engine banks each coupled to one of two catalytic converters uses first and second exhaust gas oxygen sensors respectively upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors, with the switch ratio being adjusted by an adjustment gain that is a function of airflow and a catalytic converter characteristic. A combination of the adjusted switch ratios is used to determine overall catalytic converter system performance.

    摘要翻译： 一种用于具有两个发动机组的发动机的适应性催化监测方法，每个发动机组分别耦合到两个催化转化器中的一个，分别使用分别在一个催化转化器的上游和下游的第一和第二排气氧传感器。 第三和第四废气氧传感器分别耦合在另一个催化转化器的上游和下游。 基于每个上游和下游排气氧传感器对的切换比，确定每个发动机组的开关比，其中开关比通过作为气流和催化转化器特性的调节增益来调节。 使用调整后的开关比的组合来确定总体催化转化器系统性能。

    Method and system for evaluating exhaust on-board diagnostics system
    7.
    发明授权
    Method and system for evaluating exhaust on-board diagnostics system 失效
    废气车载诊断系统评估方法和系统

    公开(公告)号：US06378359B1

    公开(公告)日：2002-04-30

    申请号：US09479534

    申请日：2000-01-07

    申请人： Douglas A. Dobson ,  Jeffrey Scott Hepburn ,  Michael Igor Kluzner ,  Robert Joseph Jerger ,  Timothy Chanko ,  William Lewis Henderson Watkins

    发明人： Douglas A. Dobson ,  Jeffrey Scott Hepburn ,  Michael Igor Kluzner ,  Robert Joseph Jerger ,  Timothy Chanko ,  William Lewis Henderson Watkins

    IPC分类号： G01M1900

    CPC分类号： F01N11/00 ,  F01N2550/00 ,  F01N2550/20 ,  Y02T10/22 ,  Y02T10/47

    摘要： A system and method of normalizing an emissions threshold catalytic brick 302 without a mileage accumulation step is used to evaluate an on-board diagnostics for an exhaust system. The method comprises normalizing a emissions threshold catalytic brick 302 by placing the emissions threshold catalytic brick 302 in a exhaust gas circulation oven, such as a retort chamber 300, immediately after an oven-aging and chemical aging process wherein the emissions threshold catalytic brick 302 is saturated with a exhaust gas at a predetermined rate and at a predetermined temperature for a specified period of time based upon the characteristics desired for the emissions threshold catalytic brick. Additionally, a method for evaluating on-board diagnostics of an exhaust system using an emissions threshold catalytic brick 302 based upon the characteristics of the exhaust system that it will be placed in is also contemplated.

    摘要翻译： 使用不使用里程积累步骤对排放阈值催化砖302进行归一化的系统和方法来评估排气系统的车载诊断。 该方法包括通过将排放阈值催化剂砖302放置在排气循环炉（例如蒸煮室300）中，在炉老化和化学老化过程之后立即使排放阈值催化砖302标准化，其中排放阈值催化砖302为 基于排放阈值催化砖所需的特性，以预定的速率和在预定温度下将废气饱和一定时间。 另外，还考虑了一种基于排放系统的特征来评估排气系统的车载诊断方法，该排气系统使用排放阈值催化砖302。

    On-board diagnostic catalyst monitoring system
    8.
    发明授权
    On-board diagnostic catalyst monitoring system 有权
    车载诊断催化剂监测系统

    公开(公告)号：US06804951B2

    公开(公告)日：2004-10-19

    申请号：US10065648

    申请日：2002-11-06

    申请人： David Robert Nader ,  Michael Igor Kluzner ,  Robert Eloy Gonzales ,  Robert Joseph Jerger ,  Ziad Zaghati

    发明人： David Robert Nader ,  Michael Igor Kluzner ,  Robert Eloy Gonzales ,  Robert Joseph Jerger ,  Ziad Zaghati

    IPC分类号： F01N300

    CPC分类号： F02D41/1441 ,  F01N3/20 ,  F01N11/007 ,  F02D41/0235 ,  F02D41/1456 ,  F02D41/221 ,  F02D2041/228 ,  Y02T10/47

    摘要： A method for determining the effectiveness of a catalyst to remove emissions from the exhaust of an internal combustion engine. The method includes measuring an upstream time history of a signal produced by an exhaust gas oxygen sensor upstream of the converter and a time history of an exhaust gas oxygen sensor disposed downstream of the converter. The time histories vary between a lean air-fuel ratio signal level and a rich air-fuel ratio signal level. A time delay is determined between the upstream time history and the downstream time history during transitions in such time histories from the lean air-fuel ratio signal level to the rich air-fuel ratio signal level. The determined time delay is compared with a reference time delay to determine the efficiency of the converter. The converter is determined to be ineffective if the converter as been determined to be potentially ineffective and the time delay is determined to be less than the reference time delay.

    摘要翻译： 一种用于确定催化剂去除内燃机排气排放的有效性的方法。 该方法包括测量由转换器上游的废气氧传感器产生的信号的上游时间历史，以及设置在转换器下游的排气氧传感器的时间历程。 时间历程在贫空燃比信号电平和浓空燃比信号电平之间变化。 在这样的时间历程中从稀空燃比信号电平到浓空燃比信号电平的转变期间的上游时间历史和下游时间历史之间确定时间延迟。 将确定的时间延迟与参考时间延迟进行比较以确定转换器的效率。 如果转换器被确定为潜在地无效且时间延迟被确定为小于参考时间延迟，则转换器被确定为无效。

    On-board diagnostic catalyst monitoring system
    10.
    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。