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38 条记录 (耗时 0.031 秒)

    EXHAUST TEMPERATURE SENSOR MONITORING
    33.
    发明申请
    EXHAUST TEMPERATURE SENSOR MONITORING 有权
    排气温度传感器监测

    公开(公告)号：US20080307851A1

    公开(公告)日：2008-12-18

    申请号：US11763396

    申请日：2007-06-14

    申请人： Stephen B. Smith ,  Shane Elwart ,  Michael Igor Kluzner ,  Jason Aaron Lupescu

    发明人： Stephen B. Smith ,  Shane Elwart ,  Michael Igor Kluzner ,  Jason Aaron Lupescu

    IPC分类号： F01N11/00

    CPC分类号： F02D41/221 ,  F01N3/0814 ,  F02D41/1446 ,  F02D41/2474

    摘要： A system for diagnosing an exhaust temperature sensor in an engine exhaust, the exhaust further including an emission control device, the system comprising an exhaust temperature sensor disposed in the exhaust pathway for indicating temperature; an air/fuel ratio sensor having a heater, the air/fuel ratio sensor disposed in the exhaust pathway; and a control system, the control system enabling and disabling the air/fuel ratio sensor heater based on operating conditions, the controller further adjusting fuel injection to provide a desired air-fuel ratio based on feedback from the air/fuel ratio sensor when the heater is enabled, and determining degradation of the exhaust temperature sensor based on a signal from the air/fuel ratio sensor when the heater is disabled.

    摘要翻译： 一种用于诊断发动机排气中的排气温度传感器的系统，所述排气还包括排放控制装置，所述排气温度传感器包括排气温度传感器，所述废气温度传感器设置在所述排气路径中用于指示温度; 具有加热器的空气/燃料比传感器，设置在排气通路中的空气/燃料比传感器; 以及控制系统，所述控制系统基于操作条件启用和禁用所述空/燃比传感器加热器，所述控制器进一步调节燃料喷射以基于来自所述空气/燃料比传感器的反馈提供期望的空燃比，当所述加热器 并且当加热器被禁用时，基于来自空气/燃料比传感器的信号来确定排气温度传感器的劣化。

    On-board diagnostic catalyst monitoring system
    35.
    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。

    Method and system for evaluating exhaust on-board diagnostics system
    37.
    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。

    Catalytic monitoring method
    38.
    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。