METHOD AND SYSTEM FOR CONTROLLING FILTER OPERATION
    1.
    发明申请
    METHOD AND SYSTEM FOR CONTROLLING FILTER OPERATION 审中-公开
    用于控制过滤器操作的方法和系统

    公开(公告)号:WO2011056164A1

    公开(公告)日:2011-05-12

    申请号:PCT/US2009/062757

    申请日:2009-10-30

    Abstract: A particulate filter control system and method for controlling the same is disclosed. The particulate filter load monitoring system may transmit radio frequency signals through the resonant cavity and filter medium across a frequency range sufficient to generate more than one resonant mode. The system may contain additional sensors for monitoring additional exhaust characteristics and parameters. Further, a control unit may be configured to determine the amount of material accumulated in the particulate filter, detect failures and malfunctions of the exhaust after-treatment system and its associated components, and initiate an action based on the amount of material accumulated in the particulate filter, the determination of a system failure or malfunction, or input from one or more exhaust sensors.

    Abstract translation: 公开了一种微粒过滤器控制系统及其控制方法。 微粒过滤器负载监测系统可以在足以产生多于一个谐振模式的频率范围内通过谐振腔和滤波介质传输射频信号。 该系统可能包含用于监测附加排气特性和参数的附加传感器。 此外,控制单元可以被配置为确定在颗粒过滤器中累积的材料的量,检测废气后处理系统及其相关部件的故障和故障,并且基于在颗粒中积累的材料的量来启动动作 过滤器,确定系统故障或故障,或从一个或多个排气传感器输入。

    SYSTEM AND METHOD FOR MEASURING RETENTATE IN FILTERS
    2.
    发明申请
    SYSTEM AND METHOD FOR MEASURING RETENTATE IN FILTERS 审中-公开
    用于测量过滤器中的净重的系统和方法

    公开(公告)号:WO2010074812A1

    公开(公告)日:2010-07-01

    申请号:PCT/US2009/062782

    申请日:2009-10-30

    Abstract: A system and method for determining loading of a filter having a first dielectric constant with a material having a different dielectric constant, is disclosed. The filter is contained within a metallic container forming a microwave cavity, and microwave or RF energy is created within the cavity and changes in the cavity microwave response are monitored. The changes in cavity microwave response are related to filter loading. In a preferred embodiment, the microwave energy includes multiple cavity modes thereby allowing determination of spatial distribution of the contaminant material loading. In one embodiment, the microwave cavity response includes a shift in frequency of a resonant mode. Alternatively, the microwave cavity response includes a shift in quality factor Q of a resonant mode. The microwave cavity response may include a shift in amplitude or peak width of the microwave's signal at resonance.

    Abstract translation: 公开了一种用具有不同介电常数的材料确定具有第一介电常数的滤波器的负载的系统和方法。 过滤器包含在形成微波腔的金属容器内,并且在空腔内产生微波或RF能量,并且监测空腔微波响应的变化。 空腔微波响应的变化与滤波器负载有关。 在优选实施例中,微波能量包括多个腔模式,由此允许确定污染物质负载的空间分布。 在一个实施例中,微波谐振腔响应包括谐振模式的频率偏移。 或者,微波腔响应包括谐振模式的质量因子Q的偏移。 微波腔响应可以包括在共振时微波信号的振幅或峰值宽度偏移。

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