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公开(公告)号：US07669582B2
公开(公告)日：2010-03-02
申请号：US12131158
申请日：2008-06-02
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
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。
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公开(公告)号：US20070084266A1
公开(公告)日：2007-04-19
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
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。
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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。
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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
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。
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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
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。
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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。
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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。
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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。
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公开(公告)号：US07281516B2
公开(公告)日：2007-10-16
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。
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公开(公告)号：US20060142925A1
公开(公告)日：2006-06-29
申请号：US11313741
申请日：2005-12-22
申请人： Rihito Kaneko , Kenji Kasashima , Masatomo Yoshihara , Kenji Senda , Kouzi Ohara , Kiyoshi Iwade , Shuhei Oe , Yuichi Takemura , Shigeru Kamio
发明人： Rihito Kaneko , Kenji Kasashima , Masatomo Yoshihara , Kenji Senda , Kouzi Ohara , Kiyoshi Iwade , Shuhei Oe , Yuichi Takemura , Shigeru Kamio
IPC分类号： G06F19/00
CPC分类号： G01L23/225
摘要： An engine ECU executes a program including a step of calculating a knock intensity N as based on comparing a waveform detected as a waveform of a vibration attributed to knocking with a knock waveform model stored in a memory as a waveform of a vibration attributed to knocking for crank angles except for crank angles where a magnitude of a vibration not attributed to knocking is greater than a predetermined magnitude, a step of determining that the engine knocks if knock intensity N is larger than a predetermined reference value, and a step of determining that the engine does not knock if knock intensity N is not larger than a predetermined reference value.
摘要翻译： 发动机ECU执行程序，其包括以下步骤：基于将作为归因于振荡的振动的波形检测的波形与存储在存储器中的爆震波形模型进行比较，计算爆震强度N作为归因于振荡的振动波形 除了没有归因于爆震的振动的幅度大于预定的大小的曲轴角度以外的曲轴角度，确定爆震强度N大于预定参考值时发动机撞击的步骤;以及确定 如果爆震强度N不大于预定的参考值，发动机不会敲击。
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