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    KNOCK DETECTION DEVICE AND KNOCK DETECTION SYSTEM DIAGNOSIS DEVICE
    1.
    发明申请
    KNOCK DETECTION DEVICE AND KNOCK DETECTION SYSTEM DIAGNOSIS DEVICE 失效
    锁定检测装置和锁定检测系统诊断装置

    公开(公告)号：US20090211337A1

    公开(公告)日：2009-08-27

    申请号：US12368490

    申请日：2009-02-10

    申请人： Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe ,  Naoki Kokubo

    发明人： Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe ,  Naoki Kokubo

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An output of a knock sensor is A/D converted in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from the knock sensor output signal and the time-varying patterns of vibration intensities in multiple frequency ranges are extracted. An edge direction and an edge intensity are computed by an edge extraction processing. A correlation value expressing a correlation between time-varying patterns of vibration intensities in multiple frequency ranges and a reference model expressing the feature of knock is computed in a mutual correlation/knock determination part. The correlation value is compared with a determination threshold. When the correlation value is larger than the determination threshold, it is determined that knock is caused. When the correlation value is not larger than the determination threshold, it is determined that knock is not caused.

    摘要翻译： 敲击传感器的输出在指定的敲击判定范围内进行A / D转换。 在时频分析部分，从爆震传感器输出信号中同时提取频率，时间和振动强度的数据，并提取多个频率范围内的振动强度的时变模式。 通过边缘提取处理来计算边缘方向和边缘强度。 在互相关/敲击判定部中计算出表示多个频率范围的振动强度的时变图案与表示敲击特征的参照模型之间的相关性的相关值。 将相关值与确定阈值进行比较。 当相关值大于确定阈值时，确定发生敲击。 当相关值不大于确定阈值时，确定不引起敲击。

    KNOCK DETECTION DEVICE AND KNOCK DETECTION SYSTEM DIAGNOSIS DEVICE
    2.
    发明申请
    KNOCK DETECTION DEVICE AND KNOCK DETECTION SYSTEM DIAGNOSIS DEVICE 失效
    锁定检测装置和锁定检测系统诊断装置

    公开(公告)号：US20090223281A1

    公开(公告)日：2009-09-10

    申请号：US12388651

    申请日：2009-02-19

    申请人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    发明人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An output signal of a knock sensor is converted by an A/D conversion part in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from an output signal of the knock sensor, and the time-varying patterns of vibration intensities in multiple frequency ranges are extracted. A knock determination part computes the number of time-varying patterns of vibration intensity which rise at same time. The knock determination part executes a knock determination based on whether the number of the time-varying patterns of vibration intensity is greater than a knock determination threshold.

    摘要翻译： 爆震传感器的输出信号由指定的爆震判定范围内的A / D转换部转换。 在时频分析部中，从爆震传感器的输出信号同时提取频率，时间和振动强度的数据，并提取多个频率范围内的振动强度的随时间变化的模式。 爆震确定部分计算同时上升的振动强度的时变模式的数量。 爆震判定部基于振动强度的时变图案的数量是否大于爆震判定阈值来执行爆震判定。

    Knock detection device and knock detection system diagnosis device
    3.
    发明授权
    Knock detection device and knock detection system diagnosis device 失效
    敲击检测装置和爆震检测系统诊断装置

    公开(公告)号：US08151627B2

    公开(公告)日：2012-04-10

    申请号：US12388651

    申请日：2009-02-19

    申请人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    发明人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    IPC分类号： G01M15/12

    CPC分类号： G01L23/225

    摘要： An output signal of a knock sensor is converted by an A/D conversion part in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from an output signal of the knock sensor, and the time-varying patterns of vibration intensities in multiple frequency ranges are extracted. A knock determination part computes the number of time-varying patterns of vibration intensity which rise at same time. The knock determination part executes a knock determination based on whether the number of the time-varying patterns of vibration intensity is greater than a knock determination threshold.

    摘要翻译： 爆震传感器的输出信号由指定的爆震判定范围内的A / D转换部转换。 在时频分析部中，从爆震传感器的输出信号同时提取频率，时间和振动强度的数据，并提取多个频率范围内的振动强度的随时间变化的模式。 爆震确定部分计算同时上升的振动强度的时变模式的数量。 爆震判定部基于振动强度的时变图案的数量是否大于爆震判定阈值来执行爆震判定。

    Knock detection device for internal combustion engine
    4.
    发明授权
    Knock detection device for internal combustion engine 失效
    内燃机爆震检测装置

    公开(公告)号：US08096166B2

    公开(公告)日：2012-01-17

    申请号：US12388616

    申请日：2009-02-19

    申请人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    发明人： Satoshi Masuda ,  Hirohiko Yamada ,  Naoki Kokubo ,  Shuhei Oe

    IPC分类号： G01M15/12

    CPC分类号： G01L23/225

    摘要： An output signal of a knock sensor is converted by an A/D conversion part in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from an output signal of the knock sensor and the time-varying patterns of vibration intensities in multiple frequency ranges are extracted. A knock determination part computes lengths (crank angle, or time period) from a starting point to a latest terminating point of the time-varying patterns of vibration intensity in at least two frequency ranges, which rise at a same time. The knock determination part executes a knock determination based on whether the lengths are greater than a knock determination threshold.

    摘要翻译： 爆震传感器的输出信号由指定的爆震判定范围内的A / D转换部转换。 在时频分析部中，从爆震传感器的输出信号同时提取频率，时间和振动强度的数据，并提取多个频率范围内的振动强度的时变图案。 敲击确定部分计算在至少两个频率范围内的振动强度的时变模式的起始点到最后终点的长度（曲柄角或时间周期），其同时上升。 爆震判定部基于长度是否大于爆震判定阈值来执行爆震判定。

    Knock detection device and knock detection system diagnosis device
    5.
    发明授权
    Knock detection device and knock detection system diagnosis device 失效
    敲击检测装置和爆震检测系统诊断装置

    公开(公告)号：US08056396B2

    公开(公告)日：2011-11-15

    申请号：US12368490

    申请日：2009-02-10

    申请人： Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe ,  Naoki Kokubo

    发明人： Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe ,  Naoki Kokubo

    IPC分类号： G01M15/12

    CPC分类号： G01L23/225

    摘要： An output of a knock sensor is A/D converted in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from the knock sensor output signal and the time-varying patterns of vibration intensities in multiple frequency ranges are extracted. An edge direction and an edge intensity are computed by an edge extraction processing. A correlation value expressing a correlation between time-varying patterns of vibration intensities in multiple frequency ranges and a reference model expressing the feature of knock is computed in a mutual correlation/knock determination part. The correlation value is compared with a determination threshold. When the correlation value is larger than the determination threshold, it is determined that knock is caused. When the correlation value is not larger than the determination threshold, it is determined that knock is not caused.

    摘要翻译： 敲击传感器的输出在指定的敲击判定范围内进行A / D转换。 在时频分析部分，从爆震传感器输出信号中同时提取频率，时间和振动强度的数据，并提取多个频率范围内的振动强度的时变模式。 通过边缘提取处理来计算边缘方向和边缘强度。 在互相关/敲击判定部中计算出表示多个频率范围的振动强度的时变图案与表示敲击特征的参照模型之间的相关性的相关值。 将相关值与确定阈值进行比较。 当相关值大于确定阈值时，确定引起敲击。 当相关值不大于确定阈值时，确定不引起敲击。

    KNOCK DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE
    6.
    发明申请
    KNOCK DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机用检测装置

    公开(公告)号：US20090217738A1

    公开(公告)日：2009-09-03

    申请号：US12372140

    申请日：2009-02-17

    申请人： Naoki Kokubo ,  Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe

    发明人： Naoki Kokubo ,  Satoshi Masuda ,  Hirohiko Yamada ,  Shuhei Oe

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： A knock sensor signal is converted by an A/D conversion part in a specified knock determination range. In a time-frequency analysis part, data of frequency, time, and vibration intensity are extracted at the same time from an output signal of the knock sensor and the time-varying patterns of vibration intensity of multiple frequency ranges are extracted. Contours of the time-varying patterns of vibration intensity in multiple frequency ranges are extracted. Vectors indicating directions along which the vibration intensities vary are approximated by the contour of the time-varying pattern of vibration intensity in each frequency range according to the least-squares method. A knock determination is executed based on whether directions of any two or more of multiple vectors are within a predetermined range. Alternatively, a knock determination is executed based on whether a ratio of length of any two or more of the vectors is within a predetermined range.

    摘要翻译： 爆震传感器信号由指定的爆震判定范围内的A / D转换部转换。 在时频分析部中，从爆震传感器的输出信号同时提取频率，时间和振动强度的数据，并提取多个频率范围的振动强度的随时间变化的模式。 提取多个频率范围内振动强度时变模式的轮廓。 指示振动强度变化的方向的矢量根据最小二乘法近似于每个频率范围内的振动强度的时变模式的轮廓。 基于多个向量中的任何两个或多个的方向是否在预定范围内来执行敲击判定。 或者，基于任何两个或更多个向量的长度的比率是否在预定范围内来执行敲击判定。

    Device and method for controlling ignition timing of internal combustion engine
    9.
    发明授权
    Device and method for controlling ignition timing of internal combustion engine 有权
    内燃机点火正时控制装置及方法

    公开(公告)号：US08000884B2

    公开(公告)日：2011-08-16

    申请号：US12096390

    申请日：2006-12-08

    申请人： Koji Aso ,  Kenji Kasashima ,  Rihito Kaneko ,  Masatomo Yoshihara ,  Kenji Senda ,  Yuichi Takemura ,  Shuhei Oe

    发明人： Koji Aso ,  Kenji Kasashima ,  Rihito Kaneko ,  Masatomo Yoshihara ,  Kenji Senda ,  Yuichi Takemura ,  Shuhei Oe

    IPC分类号： G06F19/00 ,  F02P5/00 ,  G06G7/70

    CPC分类号： F02P5/1523 ,  G01L23/225 ,  Y02T10/46

    摘要： A device and associated method for controlling ignition timing of an internal combustion engine are provided. By comparing a determination value and knock magnitude, determination of knocking is made, and ignition timing is advanced or retarded. The device includes an operation unit that sets a correction amount of the determination value to a value corresponding to a degree of change of the determination value over time. The operation unit calculates, at a first timing, a first value related to an average value of the determination values; and calculates, at a second timing later than the first timing, a second value related to the average value of the determination values. The degree of change of the determination value is calculated as a difference between the first value and the second value.

    摘要翻译： 提供了一种用于控制内燃机的点火正时的装置和相关方法。 通过比较确定值和爆震震级，进行爆震判定，点火正时提前或延迟。 该装置包括操作单元，该操作单元将确定值的校正量设置为与随时间的确定值的变化程度相对应的值。 操作单元在第一定时计算与所述确定值的平均值相关的第一值; 并且在比所述第一定时晚的第二定时计算与所述确定值的平均值相关的第二值。 将判定值的变化程度计算为第一值与第二值之差。

    Knock determination device and method for internal combustion engine
    10.
    发明授权
    Knock determination device and method for internal combustion engine 有权
    内燃机爆震测定装置及方法

    公开(公告)号：US07945379B2

    公开(公告)日：2011-05-17

    申请号：US12303123

    申请日：2007-06-05

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Norihito Hanai ,  Yuuichi Takemura ,  Shuhei Oe

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Norihito Hanai ,  Yuuichi Takemura ,  Shuhei Oe

    IPC分类号： G06F19/00

    CPC分类号： G01L23/225

    摘要： An engine ECU executes a program including the steps of: calculating a coefficient of correlation K in accordance with a result of comparing a waveform of a vibration of a frequency band including a resonance frequency of an engine with a knock waveform model previously created as a waveform of a vibration caused when the engine knocks; calculating a knock intensity N from an intensity of a vibration of a frequency band excluding the resonance frequency of the engine; if knock intensity N is larger than a reference value and coefficient of correlation K is larger than a threshold value, determining that the engine knocks; and if knock intensity N is smaller than the reference value and/or coefficient of correlation K is smaller than the threshold value, determining that the engine does not knock.

    摘要翻译： 发动机ECU执行程序，包括以下步骤：根据将包括发动机的共振频率的频带的振动的波形与先前创建的爆震波形模型进行比较的结果，计算相关系数K 发动机爆震时产生的振动; 从除了发动机的共振频率之外的频带的振动的强度计算爆震强度N; 如果爆震强度N大于参考值，并且相关系数K大于阈值，则确定发动机爆震; 并且如果爆震强度N小于参考值和/或相关系数K小于阈值，则确定发动机不会敲击。