公开(公告)号：US07779673B2

公开(公告)日：2010-08-24

申请号：US11993671

申请日：2006-12-27

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

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

IPC分类号： G01M15/12

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including the steps of: calculating an absolute value ΔS(I) of the deviation of the vibration waveform detected by a knock sensor and a knock waveform model from each other at each crank angle; when ΔS(I) greater than threshold value ΔS(0) is present and the number of ΔS(I) greater than threshold value ΔS(0) is equal to or smaller than Q(1), correcting the vibration waveform; calculating a correlation coefficient K which is a value related to the deviation of the corrected vibration waveform and the knock waveform model from each other; and when the number of ΔS(I) greater than threshold value ΔS(0) is greater than predetermined number Q(1), calculating the correlation coefficient K without correcting the vibration waveform. Based on the correlation coefficient K, whether knocking is present or absent is determined.

摘要翻译： 发动机ECU执行程序，包括以下步骤：计算在每个曲柄角处由爆震传感器检测的振动波形和爆震波形模型的偏差的绝对值＆Dgr; S（I）; 当存在大于阈值＆Dgr; S（0）的＆Dgr; S（I）时，大于阈值Dgr; S（0）的Dgr; S（I）的数量等于或小于Q（1） 校正振动波形; 计算与校正振动波形和爆震波形模型的偏差相关的值的相关系数K; 并且当大于阈值＆Dgr; S（0）的＆Dgr; S（I）的数量大于预定数量Q（1）时，计算相关系数K而不校正振动波形。 基于相关系数K，确定是否存在敲击。

公开(公告)号：US20100162794A1

公开(公告)日：2010-07-01

申请号：US11993671

申请日：2006-12-27

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

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

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including the steps of: calculating an absolute value ΔS(I) of the deviation of the vibration waveform detected by a knock sensor and a knock waveform model from each other at each crank angle; when ΔS(I) greater than threshold value ΔS(0) is present and the number of ΔS(I) greater than threshold value ΔS(0) is equal to or smaller than Q(1), correcting the vibration waveform; calculating a correlation coefficient K which is a value related to the deviation of the corrected vibration waveform and the knock waveform model from each other; and when the number of ΔS(I) greater than threshold value ΔS(0) is greater than predetermined number Q(1), calculating the correlation coefficient K without correcting the vibration waveform. Based on the correlation coefficient K, whether knocking is present or absent is determined.

摘要翻译： 发动机ECU执行程序，包括以下步骤：计算在每个曲柄角处由爆震传感器检测的振动波形和爆震波形模型的偏差的绝对值＆Dgr; S（I）; 当存在大于阈值Dgr; S（0）的＆Dgr; S（I）时，大于阈值Dgr; S（0）的Dgr; S（I）的数量等于或小于Q（1） 校正振动波形; 计算与校正振动波形和爆震波形模型的偏差相关的值的相关系数K; 并且当大于阈值＆Dgr; S（0）的＆Dgr; S（I）的数量大于预定数量Q（1）时，计算相关系数K而不校正振动波形。 基于相关系数K，确定是否存在敲击。

公开(公告)号：US07681552B2

公开(公告)日：2010-03-23

申请号：US12092004

申请日：2007-10-01

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

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

IPC分类号： F02P5/00 ,  G01L23/22

CPC分类号： G01L23/225 ,  F02D2041/1432 ,  F02D2041/1433 ,  F02P5/152 ,  Y02T10/46

摘要： An engine ECU executes a program including: the step of increasing a determination value by a correction amount if the number of knock intensities not lower than the determination value is not smaller than a threshold value among knock intensities of a plurality of predetermined number of continuous ignition cycles; and the step of increasing the determination value by a correction amount if the number of knock intensities not smaller than the determination value is not smaller than a threshold value, among knock intensities of a plurality of ignition cycles satisfying the condition that a coefficient of correlation calculated by comparing a vibration waveform and a knock waveform model is not smaller than a threshold value, of the knock intensities of a plurality of predetermined continuous ignition cycles.

摘要翻译： 发动机ECU执行程序，包括：如果在多个预定数量的连续点火中的爆震强度之中，如果爆震强度不低于确定值的爆震强度的数量不小于阈值，则将确定值增加校正量的步骤 循环; 以及在多个点火循环的爆震强度满足相关系数计算的条件下，如果爆震强度不小于所述判定值的爆震强度的数量不小于阈值，则将所述判定值增加校正量的步骤 通过比较多个预定连续点火循环的爆震强度的振动波形和爆震波形模型不小于阈值。

公开(公告)号：US07637247B2

公开(公告)日：2009-12-29

申请号：US11684786

申请日：2007-03-12

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

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

IPC分类号： G01L23/22 ,  F02D45/00

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including a step of, when it has temporarily been determined that knocking had occurred because of the presence of an integrated value greater than a product of the reference magnitude and coefficient Y among the integrated values of vibration in fourth frequency band D that includes first to third frequency bands A to C, calculating knock magnitude N using the integrated values in the synthesized waveform of first to third frequency bands A to C and correlation coefficient K calculated from a vibration waveform of fourth frequency band D. Based on a comparison between knock magnitude N and determination value V(KX), whether or not knocking has occurred is determined. If there is no integrated value greater than a product of the reference magnitude and coefficient Y, it is determined that knocking has not occurred.

摘要翻译： 发动机ECU执行程序，该程序包括当暂时确定由于存在大于第四频带振动的积分值中的参考幅度和系数Y的乘积的积分值而发生敲门时的步骤 D，其包括第一至第三频带A至C，使用第一至第三频带A至C的合成波形中的积分值和根据第四频带D的振动波形计算的相关系数K计算爆震振幅N.基于 确定敲击量N与判定值V（KX）之间的比较，确定是否发生了敲击。 如果没有大于参考幅度和系数Y的乘积的积分值，则确定未发生爆震。

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。

公开(公告)号：US07588015B2

公开(公告)日：2009-09-15

申请号：US11627133

申请日：2007-01-25

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

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

IPC分类号： F02P5/14 ,  F02P5/00

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

摘要： An engine ECU executes a program including a step of, when an absolute value of a difference between a determination value V(KX) used for determining presence or absence of knocking and a maximum value V(MAX) of magnitude value LOG(V), which is obtained by logarithmically converting a magnitude V detected based on a signal sent from a knock sensor, is greater than the product of a standard deviation σ and a coefficient U(3) in a frequency distribution of magnitude values LOG(V) for N cycle(s), setting a value obtained by adding the product of the standard deviation σ and the coefficient U(3) to the maximum value V(MAX) of the magnitude value LOG(V) as the determination value V(KX).

摘要翻译： 发动机ECU执行程序，其包括以下步骤：当用于确定是否存在敲击的判定值V（KX）与幅度值LOG（V）的最大值V（MAX）之间的差的绝对值时， 其通过对数变换基于从爆震传感器发送的信号检测到的幅度V而获得的大于对于N的幅度值LOG（V）的频率分布的标准偏差σ和系数U（3）的乘积 将通过将标准偏差σ和乘积（U）（3）乘以幅值Log（V）的最大值V（MAX）而得到的值设定为确定值V（KX）。

公开(公告)号：US20090043484A1

公开(公告)日：2009-02-12

申请号：US12162202

申请日：2007-01-24

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

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

IPC分类号： F02D45/00

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

摘要： An engine ECU executes a program including: determining whether or not a condition for stopping knocking determination is satisfied; setting a flag of stopping correction of a determination value to “ON”; calculating a knock determination level based on the extracted magnitude value; and when the correction stop flag is not “ON”, decreasing or increasing the determination value in accordance with a knock proportion KC that is a proportion of magnitude values greater than the knock determination level. The knock determination level is calculated even when the correction stop flag is “ON”.

摘要翻译： 发动机ECU执行程序，包括：确定是否满足停止敲击确定的条件; 将确定值的停止校正的标志设置为“ON”; 基于所提取的幅度值计算爆震判定水平; 并且当校正停止标志不是“ON”时，根据比敲击判定水平大的幅度值的比例的敲击比例KC来减小或增加判定值。 即使校正停止标志为“ON”，也可以计算爆震判定水平。

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。

公开(公告)号：US07392788B2

公开(公告)日：2008-07-01

申请号：US11678822

申请日：2007-02-26

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

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

IPC分类号： F02P5/00

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

摘要： An engine ECU executes a program including a step of, when an absolute value of a difference between median value V(50) of magnitude values LOG(V), which is obtained by logarithmically converting a magnitude V detected based on a signal sent from a knock sensor, and a determination value V(KX) used for determining presence or absence of knocking is greater than the product of a standard deviation σ and a coefficient U(3) in a frequency distribution of magnitude values LOG(V) for N cycle(s), setting a value obtained by adding the product of the standard deviation σ and the coefficient U(3) to the median value V(50) of magnitude values LOG(V) as the determination value V(KX).

摘要翻译： 发动机ECU执行程序，该程序包括以下步骤：当通过对数变换检测到的幅值V获得的幅度值V（50）的幅度值LOG（V）的中值V（50）的绝对值 敲击传感器，并且用于确定爆震的存在或不存在的确定值V（KX）大于在N周期的幅度值LOG（V）的频率分布中的标准偏差σ和系数U（3）的乘积 将通过将标准差σ和系数U（3）的乘积与幅度值LOG（V）的中值V（50）相加而获得的值设置为确定值V（KX）。

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。