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    Knock determination device for internal combustion engine
    1.
    发明授权
    Knock determination device for internal combustion engine 有权
    内燃机爆震判定装置

    公开(公告)号：US07251556B2

    公开(公告)日：2007-07-31

    申请号：US11312735

    申请日：2005-12-21

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Kenji Senda ,  Shigeru Kamio ,  Masaomi Inoue ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Kenji Senda ,  Shigeru Kamio ,  Masaomi Inoue ,  Yuichi Takemura

    IPC分类号： B60T7/12 ,  F02P5/00

    CPC分类号： G01L23/225

    摘要： An engine ECU executes a program including a step of calculating coefficient of correlation K that is a value related to a deviation between a vibration waveform and a knock waveform model by comparing the engine's vibration waveform with the knock waveform model stored in advance at a plurality of timings, a step of calculating a knock intensity N as based on a largest coefficient of correlation K among the calculated coefficient of correlation Ks, a step of determining that the engine knocks if knock intensity N is larger than a predetermined reference value (YES at S108), and a step of determining that the engine does not knock if knock intensity N is not larger than a predetermined reference value (NO at S108).

    摘要翻译： 发动机ECU执行程序，该程序包括通过将发动机的振动波形与预先存储的多个爆震波形模型进行比较来计算与振动波形和爆震波形模型之间的偏差相关的值的相关系数K的步骤 定时，计算相关系数Ks中基于最大相关系数K的爆震强度N的步骤，如果爆震强度N大于预定参考值，则确定发动机敲击的步骤（在S处为是 108），以及如果爆震强度N不大于预定参考值（步骤S108为否），则确定发动机不会敲击的步骤。

    Knock determination device for internal combustion engine
    2.
    发明申请
    Knock determination device for internal combustion engine 有权
    内燃机爆震判定装置

    公开(公告)号：US20060136117A1

    公开(公告)日：2006-06-22

    申请号：US11312735

    申请日：2005-12-21

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Kenji Senda ,  Shigeru Kamio ,  Masaomi Inoue ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Kenji Senda ,  Shigeru Kamio ,  Masaomi Inoue ,  Yuichi Takemura

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An engine ECU executes a program including a step of calculating coefficient of correlation K that is a value related to a deviation between a vibration waveform and a knock waveform model by comparing the engine's vibration waveform with the knock waveform model stored in advance at a plurality of timings, a step of calculating a knock intensity N as based on a largest coefficient of correlation K among the calculated coefficient of correlation Ks, a step of determining that the engine knocks if knock intensity N is larger than a predetermined reference value (YES at S108), and a step of determining that the engine does not knock if knock intensity N is not larger than a predetermined reference value (NO at S108).

    摘要翻译： 发动机ECU执行程序，该程序包括通过将发动机的振动波形与预先存储的多个爆震波形模型进行比较来计算与振动波形和爆震波形模型之间的偏差相关的值的相关系数K的步骤 定时，计算相关系数Ks中基于最大相关系数K的爆震强度N的步骤，如果爆震强度N大于预定参考值，则确定发动机敲击的步骤（在S处为是 108），以及如果爆震强度N不大于预定参考值（步骤S108为否），则确定发动机不会敲击的步骤。

    Knocking determination device for internal combustion engine
    4.
    发明授权
    Knocking determination device for internal combustion engine 有权
    内燃机敲击确定装置

    公开(公告)号：US07621172B2

    公开(公告)日：2009-11-24

    申请号：US11471682

    申请日：2006-06-21

    申请人： Masatomo Yoshihara ,  Kenji Kasashima ,  Rihito Kaneko ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Masatomo Yoshihara ,  Kenji Kasashima ,  Rihito Kaneko ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An engine ECU 200 includes a bandpass filter (1), a bandpass filter (2), and a bandpass filter (3). The bandpass filter (1) extracts only vibrations at a first frequency band A from the vibrations detected by a knock sensor. The bandpass filter (2) extracts only vibrations at a second frequency band B from the vibrations detected by the knock sensor. The bandpass filter (3) extracts only vibrations at a third frequency band C from the vibrations detected by the knock sensor. The first to third frequency bands A-C are identical in bandwidth. The engine ECU calculates a peak value in magnitude of vibrations in a synthesized waveform of these frequency bands, and determines whether knocking occurred or not based on the peak value.

    摘要翻译： 发动机ECU200包括带通滤波器（1），带通滤波器（2）和带通滤波器（3）。 带通滤波器（1）仅从由爆震传感器检测到的振动中仅提取第一频带A的振动。 带通滤波器（2）仅从由爆震传感器检测到的振动中仅提取第二频带B处的振动。 带通滤波器（3）仅从由爆震传感器检测到的振动中仅提取第三频带C处的振动。 第一至第三频带A-C的带宽相同。 发动机ECU以这些频带的合成波形计算振动幅度的峰值，根据峰值判定是否发生爆震。

    Ignition timing control device of internal combustion engine
    5.
    发明授权
    Ignition timing control device of internal combustion engine 有权
    内燃机点火正时控制装置

    公开(公告)号：US07478624B2

    公开(公告)日：2009-01-20

    申请号：US11471540

    申请日：2006-06-21

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： F02P5/00 ,  G01L23/22

    CPC分类号： F02P5/152 ,  F02D35/027 ,  G01L23/225 ,  Y02T10/46

    摘要： An engine ECU executes a program including a step of calculating intensity values LOG(V), a step of detecting vibration waveforms, a step of calculating a correlation coefficient K based on vibration waveforms, a step of preparing frequency distribution of intensity values LOG(V) smaller than a threshold V(1) and intensity values LOG(V) in an ignition cycle where correlation coefficient K is larger than a threshold K(1), a step of calculating a knock determination level V(KD) based on a median V(50) and a standard deviation σ of intensity values LOG(V), and a step of counting the number of intensity values LOG(V) larger than knock determination level V(KD) as the number of times that knocking has occurred.

    摘要翻译： 发动机ECU执行包括计算强度值LOG（V），检测振动波形的步骤，基于振动波形计算相关系数K的步骤的程序，准备强度值LOG（V）的频率分布的步骤 ），其中相关系数K大于阈值K（1）的点火循环中的阈值V（1）和强度值LOG（V）;基于中值的计算爆震判定水平V（KD）的步骤 V（50）和强度值LOG（V）的标准偏差σ，以及作为敲击发生次数的大于爆震判定水平V（KD）的强度值LOG（V）的数量的计数步骤。

    Knocking state determination device
    6.
    发明授权
    Knocking state determination device 失效
    敲击状态判定装置

    公开(公告)号：US07387107B2

    公开(公告)日：2008-06-17

    申请号：US11475230

    申请日：2006-06-27

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： F02P5/152 ,  F02P5/00

    CPC分类号： F02D35/027 ,  G01L23/225

    摘要： An engine ECU executes a program including the steps of: calculating a correlation coefficient K based on the result of comparing a vibration waveform of an engine and a knock waveform model stored previously; calculating a magnitude value LOG(V) from the magnitude V detected based on a signal transmitted from a knock sensor; creating frequency distribution of magnitude values LOG(V) by using magnitude values LOG(V) in an ignition cycle in which the correlation coefficient K larger than a threshold K(1) is calculated; and counting knock proportion KC by using the created frequency distribution. If the vibration waveform includes a waveform of vibration of noise components, the correlation coefficient K is calculated to be smaller comparing with a case of not including it.

    摘要翻译： 发动机ECU执行程序，包括以下步骤：基于比较发动机的振动波形和先前存储的爆震波形模型的结果来计算相关系数K; 从根据从爆震传感器发送的信号检测到的幅值V计算幅度值LOG（V）; 通过使用大于阈值K（1）的相关系数K的点火循环中的幅度值LOG（V）来产生幅度值LOG（V）的频率分布; 并使用创建的频率分布计数爆震比例KC。 如果振动波形包括噪声成分的振动波形，则与不包含噪声成分的情况相比，相关系数K被计算得较小。

    Knocking determination device for internal combustion engine
    7.
    发明申请
    Knocking determination device for internal combustion engine 有权
    内燃机敲击确定装置

    公开(公告)号：US20070000307A1

    公开(公告)日：2007-01-04

    申请号：US11471682

    申请日：2006-06-21

    申请人： Masatomo Yoshihara ,  Kenji Kasashima ,  Rihito Kaneko ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Masatomo Yoshihara ,  Kenji Kasashima ,  Rihito Kaneko ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： G01L23/22

    CPC分类号： G01L23/225

    摘要： An engine ECU 200 includes a bandpass filter (1), a bandpass filter (2), and a bandpass filter (3). The bandpass filter (1) extracts only vibrations at a first frequency band A from the vibrations detected by a knock sensor. The bandpass filter (2) extracts only vibrations at a second frequency band B from the vibrations detected by the knock sensor. The bandpass filter (3) extracts only vibrations at a third frequency band C from the vibrations detected by the knock sensor. The first to third frequency bands A-C are identical in bandwidth. The engine ECU calculates a peak value in magnitude of vibrations in a synthesized waveform of these frequency bands, and determines whether knocking occurred or not based on the peak value.

    摘要翻译： 发动机ECU200包括带通滤波器（1），带通滤波器（2）和带通滤波器（3）。 带通滤波器（1）仅从由爆震传感器检测到的振动中仅提取第一频带A的振动。 带通滤波器（2）仅从由爆震传感器检测到的振动中仅提取第二频带B处的振动。 带通滤波器（3）仅从由爆震传感器检测到的振动中仅提取第三频带C处的振动。 第一至第三频带A-C的带宽相同。 发动机ECU以这些频带的合成波形计算振动幅度的峰值，根据峰值判定是否发生爆震。

    Ignition timing control device of internal combustion engine
    8.
    发明申请
    Ignition timing control device of internal combustion engine 有权
    内燃机点火正时控制装置

    公开(公告)号：US20060288982A1

    公开(公告)日：2006-12-28

    申请号：US11471540

    申请日：2006-06-21

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： F02P5/152

    CPC分类号： F02P5/152 ,  F02D35/027 ,  G01L23/225 ,  Y02T10/46

    摘要： An engine ECU executes a program including a step of calculating intensity values LOG(V), a step of detecting vibration waveforms, a step of calculating a correlation coefficient K based on vibration waveforms, a step of preparing frequency distribution of intensity values LOG(V) smaller than a threshold V(1) and intensity values LOG(V) in an ignition cycle where correlation coefficient K is larger than a threshold K(1), a step of calculating a knock determination level V(KD) based on a median V(50) and a standard deviation σ of intensity values LOG(V), and a step of counting the number of intensity values LOG(V) larger than knock determination level V(KD) as the number of times that knocking has occurred.

    摘要翻译： 发动机ECU执行包括计算强度值LOG（V），检测振动波形的步骤，基于振动波形计算相关系数K的步骤的程序，准备强度值LOG（V）的频率分布的步骤 ），其中相关系数K大于阈值K（1）的点火循环中的阈值V（1）和强度值LOG（V）;基于中值的计算爆震判定水平V（KD）的步骤 V（50）和强度值LOG（V）的标准偏差σ，以及作为敲击发生次数的大于爆震判定水平V（KD）的强度值LOG（V）的数量的计数步骤。

    Ignition timing control device of internal combustion engine
    9.
    发明申请
    Ignition timing control device of internal combustion engine 有权
    内燃机点火正时控制装置

    公开(公告)号：US20060288981A1

    公开(公告)日：2006-12-28

    申请号：US11452313

    申请日：2006-06-14

    申请人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    发明人： Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Koji Aso ,  Kenji Senda ,  Shigeru Kamio ,  Yuichi Takemura

    IPC分类号： F02P5/152

    CPC分类号： F02P5/1523 ,  F02P5/1527 ,  Y02T10/46

    摘要： An engine ECU executes a program including the steps of: comparing a vibration waveform of an engine and a knock waveform model stored in advance to calculate a correlation coefficient K; prohibiting correction when a correction prohibiting condition of a determination value V(KX) is satisfied, the determination value V(KX) compared with a knock magnitude N calculated from the correlation coefficient K so as to control the ignition timing; and correcting the determination value V(KX) based on a magnitude value LOG(V) calculated from a magnitude V of vibration in an ignition cycle in which the correlation coefficient K greater than a threshold value K(1) is calculated when the correction prohibiting condition of determination value V(KX) is not satisfied. The correlation coefficient K is calculated as a smaller value when the vibration waveform includes a waveform of vibration of a noise component as compared with that when the vibration waveform does not include it.

    摘要翻译： 发动机ECU执行程序，包括以下步骤：比较发动机的振动波形和预先存储的爆震波形模型，以计算相关系数K; 当满足确定值V（KX）的校正禁止条件时，禁止校正，与根据相关系数K计算的爆震大小N相比较的判定值V（KX）以控制点火正时; 并且基于从在校正禁止中计算相关系数K大于阈值K（1）的点火周期中的振动幅度V计算的幅度值LOG（V）来校正确定值V（KX） 判定值V（KX）的条件不满足。 与振动波形不包含振动波形的振动波形相比，当振动波形包括噪声分量的振动波形时，相关系数K被计算为较小的值。