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    KNOCK DETERMINING DEVICE
    3.
    发明申请
    KNOCK DETERMINING DEVICE 有权
    卡诺决定装置

    公开(公告)号：US20110257872A1

    公开(公告)日：2011-10-20

    申请号：US12672731

    申请日：2008-07-23

    申请人： Satoshi Masuda ,  Rihito Kaneko ,  Satoshi Watanabe ,  Hiroto Tanaka ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

    发明人： Satoshi Masuda ,  Rihito Kaneko ,  Satoshi Watanabe ,  Hiroto Tanaka ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An output signal of a knock sensor is filtered with a plurality of band-pass filters to extract vibration waveform components of a plurality of frequency bands (f1-f4). Weighting coefficients (G1-G4) which multiply the vibration waveform component of each frequency band are established in such a manner as to be a small value as a noise intensity of each frequency band becomes larger. Thereby, the vibration waveform component of a plurality of frequency bands is synthesized by weighting according to an influence of a noise intensity of each frequency band. Even when the noise is superimposed on the vibration waveform component of any of the frequency bands, it becomes possible to reduce the influence of the noise and to synthesize the vibration waveform component of each frequency band, and an accurate knock determination can be performed based on the composite vibration waveform.

    摘要翻译： 用多个带通滤波器对爆震传感器的输出信号进行滤波，以提取多个频带（f1-f4）的振动波形分量。 以每个频带的噪声强度变大的方式建立乘以每个频带的振动波形分量的加权系数（G1-G4），使其为小值。 由此，通过根据每个频带的噪声强度的影响进行加权来合成多个频带的振动波形分量。 即使当噪声叠加在任何频带的振动波形分量上时，也可以减小噪声的影响并合成每个频带的振动波形分量，并且可以基于 复合振动波形。

    IGNITION TIMING CONTROLLING APPARATUS AND IGNITION TIMING CONTROLLING METHOD FOR INTERNAL COMBUSTION ENGINE
    4.
    发明申请
    IGNITION TIMING CONTROLLING APPARATUS AND IGNITION TIMING CONTROLLING METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    点火时间控制装置和点火时间控制方法内燃机

    公开(公告)号：US20090120410A1

    公开(公告)日：2009-05-14

    申请号：US12263216

    申请日：2008-10-31

    申请人： Rihito Kaneko ,  Hiroto Tanaka ,  Satoshi Watanabe ,  Norihito Hanai ,  Yasuhiro Yamasako ,  Kenji Senda ,  Satoshi Masuda

    发明人： Rihito Kaneko ,  Hiroto Tanaka ,  Satoshi Watanabe ,  Norihito Hanai ,  Yasuhiro Yamasako ,  Kenji Senda ,  Satoshi Masuda

    IPC分类号： F02P5/15

    CPC分类号： F02P5/152 ,  G01M15/042 ,  Y02T10/46

    摘要： A 90° integrated value calculating unit of an engine ECU calculates a 90° integrated value obtained by integrating a magnitude. A calculating unit calculates a knock magnitude by dividing 90° integrated value by a BGL. A value obtained by subtracting a standard deviation σ from a median value of 90° integrated value is determined as the BGL. An ignition timing control unit controls the ignition timing depending on whether knock magnitude is equal to or larger than a determination value. A median value calculating unit calculates median value of 90° integrated value. A standard deviation calculating unit calculates standard deviation of 90° integrated value. A first stop unit stops updating of median value and standard deviation when 90° integrated value is smaller than a first threshold value or is equal to or larger than a second threshold value.

    摘要翻译： 发动机ECU的90°积分值计算单元计算通过积分大小获得的90°积分值。 计算单元通过将90°积分值除以BGL来计算敲击量。 通过从90°积分值的中值减去标准偏差σ获得的值被确定为BGL。 点火正时控制单元根据爆震量是否等于或大于判定值来控制点火正时。 中值计算单元计算90°积分值的中值。 标准偏差计算单元计算90°积分值的标准偏差。 当90°积分值小于第一阈值或等于或大于第二阈值时，第一停止单元停止中值和标准偏差的更新。

    Knock determining device
    5.
    发明授权
    Knock determining device 有权
    敲击确定装置

    公开(公告)号：US08301360B2

    公开(公告)日：2012-10-30

    申请号：US12672731

    申请日：2008-07-23

    申请人： Satoshi Masuda ,  Rihito Kaneko ,  Satoshi Watanabe ,  Hiroto Tanaka ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

    发明人： Satoshi Masuda ,  Rihito Kaneko ,  Satoshi Watanabe ,  Hiroto Tanaka ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

    IPC分类号： G01L23/22 ,  F02D45/00 ,  G01M15/12 ,  F02P5/152

    CPC分类号： G01L23/225

    摘要： An output signal of a knock sensor is filtered with a plurality of band-pass filters to extract vibration waveform components of a plurality of frequency bands (f1-f4). Weighting coefficients (G1-G4) which multiply the vibration waveform component of each frequency band are established in such a manner as to be a small value as a noise intensity of each frequency band becomes larger. Thereby, the vibration waveform component of a plurality of frequency bands is synthesized by weighting according to an influence of a noise intensity of each frequency band. Even when the noise is superimposed on the vibration waveform component of any of the frequency bands, it becomes possible to reduce the influence of the noise and to synthesize the vibration waveform component of each frequency band, and an accurate knock determination can be performed based on the composite vibration waveform.

    摘要翻译： 用多个带通滤波器对爆震传感器的输出信号进行滤波，以提取多个频带（f1-f4）的振动波形分量。 以每个频带的噪声强度变大的方式建立乘以每个频带的振动波形分量的加权系数（G1-G4），使其为小值。 由此，通过根据每个频带的噪声强度的影响进行加权来合成多个频带的振动波形分量。 即使当噪声叠加在任何频带的振动波形分量上时，也可以减小噪声的影响并合成每个频带的振动波形分量，并且可以基于 复合振动波形。

    Ignition timing controlling apparatus and ignition timing controlling method for internal combustion engine
    6.
    发明授权
    Ignition timing controlling apparatus and ignition timing controlling method for internal combustion engine 有权
    点火正时控制装置和内燃机的点火正时控制方法

    公开(公告)号：US07963269B2

    公开(公告)日：2011-06-21

    申请号：US12263216

    申请日：2008-10-31

    申请人： Rihito Kaneko ,  Hiroto Tanaka ,  Satoshi Watanabe ,  Norihito Hanai ,  Yasuhiro Yamasako ,  Kenji Senda ,  Satoshi Masuda

    发明人： Rihito Kaneko ,  Hiroto Tanaka ,  Satoshi Watanabe ,  Norihito Hanai ,  Yasuhiro Yamasako ,  Kenji Senda ,  Satoshi Masuda

    IPC分类号： F02P5/00

    CPC分类号： F02P5/152 ,  G01M15/042 ,  Y02T10/46

    摘要： A 90° integrated value calculating unit of an engine ECU calculates a 90° integrated value obtained by integrating a magnitude. A calculating unit calculates a knock magnitude by dividing 90° integrated value by a BGL. A value obtained by subtracting a standard deviation σ from a median value of 90° integrated value is determined as the BGL. An ignition timing control unit controls the ignition timing depending on whether knock magnitude is equal to or larger than a determination value. A median value calculating unit calculates median value of 90° integrated value. A standard deviation calculating unit calculates standard deviation of 90° integrated value. A first stop unit stops updating of median value and standard deviation when 90° integrated value is smaller than a first threshold value or is equal to or larger than a second threshold value.

    摘要翻译： 发动机ECU的90°积分值计算单元计算通过积分大小获得的90°积分值。 计算单元通过将90°积分值除以BGL来计算敲击量。 通过减去标准偏差＆sgr获得的值 从中值90°积分值确定为BGL。 点火正时控制单元根据爆震量是否等于或大于判定值来控制点火正时。 中值计算单元计算90°积分值的中值。 标准偏差计算单元计算90°积分值的标准偏差。 当90°积分值小于第一阈值或等于或大于第二阈值时，第一停止单元停止中值和标准偏差的更新。

    Knock determining apparatus and method for internal combustion engine
    9.
    发明授权
    Knock determining apparatus and method for internal combustion engine 有权
    内燃机爆震判定装置及方法

    公开(公告)号：US07043353B2

    公开(公告)日：2006-05-09

    申请号：US11106581

    申请日：2005-04-15

    申请人： Yuichi Takemura ,  Satoshi Masuda ,  Masaomi Inoue ,  Kenji Kasashima ,  Rihito Kaneko

    发明人： Yuichi Takemura ,  Satoshi Masuda ,  Masaomi Inoue ,  Kenji Kasashima ,  Rihito Kaneko

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： A plurality of variables representing the characteristics of a knock is obtained from an output signal of a sensor. The variables include a peak value of the knock frequency component in the output signal of the sensor and a waveform correlation coefficient representing the correlation between the waveform of the output signal and an ideal knock waveform, which is the waveform specific to a knock. The peak value and the waveform correlation coefficient are normalized, and a detection distribution is created using the obtained normalized data values. A correlation coefficient for knock determination representing the correlation between the detection distribution and an ideal knock distribution is calculated. The correlation coefficient for knock determination is compared with a predetermined knock determination threshold value, and the knock determination threshold value is corrected in accordance with the comparison result. As a result, the accuracy and the reliability of knock determination are improved.

    摘要翻译： 从传感器的输出信号获得表示爆震特性的多个变量。 这些变量包括传感器的输出信号中的爆震频率分量的峰值和表示输出信号的波形与理想爆震波形之间的相关性的波形相关系数，其是敲击特有的波形。 将峰值和波形相关系数归一化，并使用所获得的归一化数据值创建检测分布。 计算表示检测分布与理想爆震分布之间的相关性的爆震确定的相关系数。 将爆震确定的相关系数与预定的爆震判定阈值进行比较，并根据比较结果校正爆震判定阈值。 结果，提高了敲击确定的精度和可靠性。

    Knock detecting apparatus and method for internal combustion engine
    10.
    发明申请
    Knock detecting apparatus and method for internal combustion engine 有权
    内燃机爆震检测装置及方法

    公开(公告)号：US20050241369A1

    公开(公告)日：2005-11-03

    申请号：US11106546

    申请日：2005-04-15

    申请人： Masaomi Inoue ,  Yuichi Takemura ,  Satoshi Masuda ,  Kenji Kasashima ,  Rihito Kaneko

    发明人： Masaomi Inoue ,  Yuichi Takemura ,  Satoshi Masuda ,  Kenji Kasashima ,  Rihito Kaneko

    IPC分类号： F02P17/12 ,  F02D45/00 ,  G01L23/22

    CPC分类号： G01L23/225

    摘要： The signal levels of vibration waveform signals outputted by knock sensors are extracted at a filter processing section for each of a plurality of frequency bands. The mean value of the signal levels in the frequency bands at a point in time when variation of the signal levels in the frequency bands is minimum computed, and the mean value is detected as a background level. A knock characteristic parameter, which represents the characteristics of knock, is computed based on the extracted signal levels in the frequency bands. The knock characteristic parameter is compared with the background level to obtain a knock intensity. If the knock intensity is equal to or greater than a knock determination value, it is determined that knock that exceeds a permissible level is occurring. If the knock intensity is less than the knock determination value, it is determined that knock that exceeds the permissible level is not occurring. This configuration permits the background level of the output of the knock sensors to be accurately detected without being influenced by knock or noise.

    摘要翻译： 对于多个频带中的每一个，在滤波处理部分提取由爆震传感器输出的振动波形信号的信号电平。 在频带中的信号电平的变化被计算的时间点的频带中的信号电平的平均值被计算，并且平均值被检测为背景电平。 基于在频带中提取的信号电平来计算表示爆震特性的爆震特征参数。 将敲击特征参数与背景水平进行比较以获得爆震强度。 如果敲击强度等于或大于爆震判定值，则确定发生超过允许水平的爆震。 如果爆震强度小于爆震判定值，则确定没有发生超过允许水平的爆震。 该配置允许在不受敲击或噪声影响的情况下精确地检测爆震传感器的输出的背景水平。