PARTICULATE COLLECTION FILTER STATE DETECTION DEVICE
    3.
    发明申请
    PARTICULATE COLLECTION FILTER STATE DETECTION DEVICE 有权
    颗粒收集过滤器状态检测装置

    公开(公告)号:US20140090460A1

    公开(公告)日:2014-04-03

    申请号:US14122678

    申请日:2012-03-07

    CPC classification number: F01N9/002 F01N9/007 F01N11/002 G01M15/106 Y02T10/47

    Abstract: A particulate collection filter state detection device according to the present invention includes first pressure detection means for detecting a first pressure produced at an upstream side of the filter on an exhaust gas flow path, second pressure detection means for detecting a second pressure produced at a downstream side of the filter on the exhaust gas flow path, first Fourier transformation means for applying Fourier transformation to a value of the first pressure detected by the first pressure detection means, second Fourier transformation means for applying Fourier transformation to a value of the second pressure detected by the second pressure detection means, comparison means for comparing a spectral intensity and/or a phase at a zero frequency and a spectral intensity and/or a phase at a predetermined frequency obtained by the first Fourier transformation means and a spectral intensity and/or a phase at a zero frequency and a spectral intensity and/or a phase at a predetermined frequency obtained by the second Fourier transformation means, and filter state determination means for determining a state of the filter based on a comparison result provided by the comparison means, so as to conduct determination of a state of a filter for collecting particulates in an exhaust gas at a good precision.

    Abstract translation: 根据本发明的颗粒物收集过滤器状态检测装置包括:第一压力检测装置,用于检测在排气流路上的过滤器的上游侧产生的第一压力;第二压力检测装置,用于检测在下游产生的第二压力 在第一压力检测装置检测到的第一压力的值上进行傅立叶变换的第一傅里叶变换装置,用于将傅里叶变换应用于检测到的第二压力的值的第二傅里叶变换装置, 通过第二压力检测装置,比较装置,用于将零频率处的光谱强度和/或相位与由第一傅立叶变换装置获得的预定频率的光谱强度和/或相位和/或频谱强度和/或频谱强度和/或 在零频率处的相位和光谱强度和/或预成型条件下的相位 通过第二傅里叶变换装置得到的频率的滤波器状态,以及基于由比较装置提供的比较结果来确定滤波器的状态的滤波器状态确定装置,以便进行用于收集排气中的微粒的过滤器的状态的确定 天然气精度良好。

    Particulate collection filter state detection device
    4.
    发明授权
    Particulate collection filter state detection device 有权
    颗粒收集过滤状态检测装置

    公开(公告)号:US09322315B2

    公开(公告)日:2016-04-26

    申请号:US14122678

    申请日:2012-03-07

    CPC classification number: F01N9/002 F01N9/007 F01N11/002 G01M15/106 Y02T10/47

    Abstract: A filter state detection device includes a first pressure detection part, a second pressure detection part, and a filter state determination part. The filter state determination part is configured to include an operation part and a storage part. The operation part is configured to apply Fourier transformation to each of values of first and second pressures to obtain first and second spectral intensities and/or phases at a zero frequency and first and second spectral intensities and/or phases at a predetermined frequency and configured to compare the first spectral intensity and/or phase at a zero frequency and the first spectral intensity and/or phase at the predetermined frequency as a first group against the second spectral intensity and/or phase at a zero frequency and the second spectral intensity and/or phase at the predetermined frequency as a second group to determine a state of a filter.

    Abstract translation: 过滤状态检测装置包括第一压力检测部,第二压力检测部以及过滤状态判定部。 过滤状态确定部被配置为包括操作部和存储部。 操作部分被配置为对第一和第二压力的每个值应用傅里叶变换,以在零频率和/或在预定频率处的第一和第二频谱强度和/或相位获得第一和第二频谱强度和/或相位,并且被配置为 将零频率处的第一光谱强度和/或相位和在预定频率处的第一光谱强度和/或相位作为第一组抵抗零频率处的第二光谱强度和/或相位,并且将第二光谱强度和/ 或以预定频率的相位作为第二组,以确定滤波器的状态。

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