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：US20070214869A1

公开(公告)日：2007-09-20

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

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：US20070175444A1

公开(公告)日：2007-08-02

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： F02P5/00

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：US07942040B2

公开(公告)日：2011-05-17

申请号：US12162489

申请日：2007-05-21

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

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

IPC分类号： G01M15/12

CPC分类号： F02P5/152 ,  F02D35/027 ,  F02D2041/1432 ,  G01L23/225 ,  Y02T10/46

摘要： Out of synthesized waveforms of vibrations in a first frequency band A to a third frequency band C, a knock magnitude N is calculated by using a portion β having an integrated value greater than a reference magnitude in a knock region but not using a portion having an integrated value greater than the reference magnitude out of the knock region (i.e., a region obtained by excluding the knock region from a knock detecting gate). In a case where knock magnitude N is greater than a determination value V(KX), it is determined that knocking occurs. In contrast, in a case where knock magnitude N is not greater than determination value V(KX), it is determined that no knocking occurs.

摘要翻译： 在第一频带A至第三频带C的振动合成波形中，通过使用部分＆bgr来计算爆震振幅N; 具有大于敲击区域中的参考幅度的积分值，但不使用具有大于爆震区域中的参考幅度的积分值的部分（即，通过从爆震检测门排除爆震区域获得的区域）。 在爆震振幅N大于判定值V（KX）的情况下，判断为发生爆震。 相反，在爆震振幅N不大于判定值V（KX）的情况下，判断为不发生爆震。

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。

公开(公告)号：US20090158816A1

公开(公告)日：2009-06-25

申请号：US12300643

申请日：2007-05-23

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

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

IPC分类号： G01L23/22

CPC分类号： F02P5/152 ,  F02D35/027 ,  F02D2041/1432 ,  G01L23/225 ,  Y02T10/46

摘要： A knocking judgement method for an internal combustion engine, in which an engine ECU executes a program judging whether or not such ones of integrated values calculated by integrating the output of a knock sensor at every five degrees of a crank angle are larger than a tentative knock judgement value, in vibrations of a fourth frequency band containing the resonance frequency of the engine, tentatively judging that a knocking has occurred, in case the integrated value larger than the tentative knock judgement value is a predetermined number or more, and judging that no knocking has occurred, in case the integrated value larger than the tentative knock judgement value is not more than the predetermined number.

摘要翻译： 一种用于内燃机的爆震判断方法，其中发动机ECU执行一个程序，该程序判断通过对每个曲柄角度的每五度积分爆震传感器的输出而计算出的积分值是否大于临时敲击 在包含发动机的共振频率的第四频带的振动中，在大于临时爆震判定值的积分值为规定数以上的情况下暂时判断已经发生爆震的判定值，判断为没有爆震 在大于临时爆震判定值的积分值不大于预定数量的情况下发生。

公开(公告)号：US07500468B2

公开(公告)日：2009-03-10

申请号：US11767738

申请日：2007-06-25

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

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

IPC分类号： F02P5/00

CPC分类号： F02P5/152 ,  F02D35/027 ,  F02D2041/1433 ,  G01L23/225 ,  Y02T10/46

摘要： An engine ECU executes a program including the steps of: determining that the condition that there is a possibility of occurrence of knocking is satisfied, based on the result of comparison between a vibration waveform of an engine and a knock waveform model; calculating a 40CA integrated value by integrating magnitudes of vibration occurring in the engine for a range of crank angle of 40°; calculating a knock magnitude N by dividing the 40CA integrated value by a BGL; determining that knocking has occurred when the knock magnitude N is larger than a determination value V(KX); and determining that knocking has not occurred when the knock magnitude N is smaller than the determination value V(KX).

摘要翻译： 发动机ECU执行程序，包括以下步骤：基于发动机的振动波形与爆震波形模型之间的比较结果，确定满足发生爆震可能性的条件; 通过在40度的曲柄角范围内积分发动机发生振动的大小来计算40CA积分值; 通过将40CA积分值除以BGL来计算爆震量N; 确定当爆震振幅N大于确定值V（KX）时发生爆震; 并且当爆震振幅N小于确定值V（KX）时确定没有发生爆震。

公开(公告)号：US20090005956A1

公开(公告)日：2009-01-01

申请号：US12280753

申请日：2007-05-28

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

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

IPC分类号： F02D45/00

CPC分类号： F02D35/027 ,  F02D2250/28 ,  F02P5/152

摘要： An engine ECU executes a program including a step of setting a search range of the crank angle of a peak value P that is the largest integrated value in a vibration waveform of an engine detected by calculating integrated values that are integrals of output voltage values of a knock sensor for every five degrees of a crank angle such that the search range may include the crank angle increasing with increase in engine speed NE, and a step of detecting the crank angle of the largest integrated value in the search range, and setting the detected crank angle as the crank angle of peak value P in the vibration waveform. At the crank angle based on the crank angle of peak value P, the vibration waveform is compared with a knock waveform model.

摘要翻译： 发动机ECU执行程序，该程序包括以下步骤：将通过计算作为积分值的积分值的积分值设定为检测到的发动机的振动波形中的作为最大积分值的峰值P的曲柄角度的搜索范围， 使得搜索范围可以包括随着发动机转速NE的增加而增加的曲柄角度，以及检测搜索范围中最大积分值的曲柄角的步骤，并且设定检测到的曲柄角度 曲柄角作为振动波形中峰值P的曲柄角。 在基于峰值P的曲柄角的曲柄角处，将振动波形与爆震波形模型进行比较。

公开(公告)号：US20080262705A1

公开(公告)日：2008-10-23

申请号：US12092163

申请日：2007-10-01

申请人： Shuhei Oe ,  Kouzi Ohara ,  Satoshi Masuda ,  Yuuichi Takemura ,  Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

发明人： Shuhei Oe ,  Kouzi Ohara ,  Satoshi Masuda ,  Yuuichi Takemura ,  Rihito Kaneko ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Norihito Hanai ,  Yasuhiro Yamasako

IPC分类号： F02D45/00

CPC分类号： G01M15/11 ,  F02D35/027 ,  F02D41/1498 ,  G01L23/225

摘要： An engine ECU executes: calculating 15-degrees integrated value integrating vibration intensity for each of six crank angle ranges; detecting an amount of change in the 15-degrees integrated value between ignition cycles; specifying two ranges having larger amounts of change; specifying a crank angle having intensity larger than that of a neighboring crank angle in a search range determined to be the same as the specified ranges; calculating a coefficient of correlation K corresponding to a difference between a vibration waveform and a knock waveform model while the specified crank angle is matched with a timing at which intensity peaks in the knock waveform model; and, if the coefficient of correlation K is larger than a threshold value K(0), determining that knock has occurred.

摘要翻译： 发动机ECU执行：对六个曲柄角范围中的每一个计算积分振动强度的15度积分值; 检测点火循环之间15度积分值的变化量; 指定具有较大变化量的两个范围; 指定在确定为与所述指定范围相同的搜索范围内具有大于相邻曲柄角的强度的曲柄角; 计算与所述爆震波形模型中的强度峰值的时刻相匹配的振动波形与爆震波形模型之间的差值的相关系数K; 并且如果相关系数K大于阈值K（0），则确定发生了敲击。

公开(公告)号：US20080000449A1

公开(公告)日：2008-01-03

申请号：US11767955

申请日：2007-06-25

申请人： Rihito KANEKO ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Yuuichi Takemura ,  Shuhei Oe

发明人： Rihito KANEKO ,  Kenji Kasashima ,  Masatomo Yoshihara ,  Kenji Senda ,  Yuuichi Takemura ,  Shuhei Oe

IPC分类号： F02P5/00

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

摘要： An engine ECU executes a program including the steps of: calculating a magnitude value LOG(V) by logarithmically converting a magnitude V of vibration occurring in an engine, calculating a median V(50) and a standard deviation σ of magnitude values LOG(V); and setting, to the product of the standard deviation σ and a factor A, a first upper limit of a determination value V(KX) that is to be compared with a knock magnitude N for determining whether or not knocking has occurred, and setting a first lower limit of the determination value V(KX) to the product of the standard deviation σ and a factor B.

摘要翻译： 发动机ECU执行程序，包括以下步骤：通过对数变换发动机中发生的振动的振幅V来计算振幅值LOG（V），计算中值V（50）和幅度值LOG（V）的标准偏差σ ）; 并且将与标准偏差σ和因子A的乘积设定为与用于确定是否已经发生敲击的爆震大小N进行比较的确定值V（KX）的第一上限，并且将 确定值V（KX）与标准偏差σ和因子B的乘积的第一下限。