公开(公告)号：US08205489B2

公开(公告)日：2012-06-26

申请号：US12602286

申请日：2008-05-27

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

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

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including: detecting a magnitude of vibration of an engine; detecting a vibration waveform of the engine based on the magnitude; calculating a correlation coefficient, in the case where the engine speed is smaller than a threshold value, using the sum of values each determined by subtracting a positive reference value from a magnitude of a knock waveform model, as an area of the knock waveform model and, calculating the correlation coefficient, in the case where the engine speed is not smaller than the threshold value, using the area of the whole knock waveform model; and determining whether or not knocking has occurred using the correlation coefficient. The correlation coefficient is calculated by dividing by the area the sum of differences that are each the difference between the magnitude on the vibration waveform and the magnitude on the knock waveform model.

摘要翻译： 发动机ECU执行程序，包括：检测发动机振动的大小; 基于大小检测发动机的振动波形; 使用通过从爆震波形模型的大小中减去正的参考值而确定的值的总和作为爆震波形模型的面积，计算相对系数，在发动机转速小于阈值的情况下， 使用整个爆震波形模型的面积，计算发动机转速不小于阈值的情况下的相关系数; 以及使用所述相关系数来确定是否发生了敲击。 相关系数通过除以振动波形上的大小与爆震波形模型上的大小之间的差值之差的面积来计算。

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。

公开(公告)号：US20100162795A1

公开(公告)日：2010-07-01

申请号：US12602286

申请日：2008-05-27

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

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

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including the steps of: detecting a magnitude of vibration of an engine (S 102); detecting a vibration waveform of the engine based on the magnitude (S 104); calculating a correlation coefficient K, in the case where the engine speed NE is smaller than a threshold value NE (1), using the sum of values each determined by subtracting a positive reference value from a magnitude of a knock waveform model, as an area S of the knock waveform model and, calculating the correlation coefficient K, in the case where the engine speed NE is not smaller than the threshold value NE (1), using the area S of the whole knock waveform model (S114); and determining whether or not knocking has occurred using the correlation coefficient K (S 120, S 124). The correlation coefficient K is calculated by dividing by the area S the sum of differences that are each the difference between the magnitude on the vibration waveform and the magnitude on the knock waveform model.

摘要翻译： 发动机ECU执行包括以下步骤的程序：检测发动机的振动的大小（S102）; 基于大小检测发动机的振动波形（S104）; 在使用通过从爆震波形模型的大小中减去正的基准值而确定的值的和的总和，在发动机转速NE小于阈值NE（1）的情况下，计算相关系数K作为区域 并且使用整个爆震波形模型的区域S，在发动机转速NE不小于阈值NE（1）的情况下计算相关系数K）（S114）。 以及使用所述相关系数K确定是否已经发生了敲击（S 120，S 124）。 通过将面积S除以振动波形上的大小与爆震波形模型上的大小之间的差值之差，来计算相关系数K.

公开(公告)号：US20070012090A1

公开(公告)日：2007-01-18

申请号：US11475993

申请日：2006-06-28

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

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

IPC分类号： G01L23/22 ,  G01M15/12

CPC分类号： G01L23/225

摘要： An engine ECU includes a bandpass filter (1) extracting only vibrations at a first frequency band A, a bandpass filter (2) extracting only vibrations at a second frequency band B, a bandpass filter (3) extracting only vibrations at a third frequency band C, and a bandpass filter (4) extracting only vibrations at a fourth frequency band D including the first to third frequency bands A-C. The engine ECU determines whether knocking occurred or not based on a vibration waveform of the fourth frequency band D and a peak value in magnitude of vibrations in a synthesized waveform of the first to third frequency bands.

摘要翻译： 发动机ECU包括仅抽取第一频带A的振动的带通滤波器（1），仅抽取第二频带B的振动的带通滤波器（2），仅提取第三频带的振动的带通滤波器（3） C和带通滤波器（4）仅提取包括第一至第三频带AC的第四频带D的振动。 发动机ECU基于第四频带D的振动波形和第一至第三频带的合成波形中的振动幅度的峰值来确定是否发生敲击。

公开(公告)号：US08302462B2

公开(公告)日：2012-11-06

申请号：US12676161

申请日：2008-07-28

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

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

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU executes operations including: extracting vibration intensities of a plurality of frequency bands from vibration detected by a knock sensor, multiplying the extracted vibration intensity of each frequency band by a weight coefficient and adding the results in correspondence with crank angles to calculate integrated values of every five degrees; calculating a coefficient of correlation based on a result of comparison between a vibration waveform of a frequency band and a knock waveform model prepared in advance; calculating a knock intensity; determining occurrence of knocking in accordance with the calculated coefficient of correlation and the knock intensity; and determining no occurrence of knocking in accordance with the calculated coefficient of correlation and the knock intensity.

摘要翻译： 发动机ECU执行以下操作：包括：从由爆震传感器检测的振动中提取多个频带的振动强度，将每个频带的提取的振动强度乘以权重系数，并将结果与​​曲柄角相对应，以计算积分值 每五度; 基于频带的振动波形与预先准备的爆震波形模型的比较结果，计算相关系数; 计算爆震强度; 根据计算的相关系数和爆震强度确定爆震的发生; 并根据计算的相关系数和爆震强度确定不发生爆震。

公开(公告)号：US07669459B2

公开(公告)日：2010-03-02

申请号：US11475993

申请日：2006-06-28

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

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

IPC分类号： G01L23/22

CPC分类号： G01L23/225

摘要： An engine ECU includes a bandpass filter (1) extracting only vibrations at a first frequency band A, a bandpass filter (2) extracting only vibrations at a second frequency band B, a bandpass filter (3) extracting only vibrations at a third frequency band C, and a bandpass filter (4) extracting only vibrations at a fourth frequency band D including the first to third frequency bands A-C. The engine ECU determines whether knocking occurred or not based on a vibration waveform of the fourth frequency band D and a peak value in magnitude of vibrations in a synthesized waveform of the first to third frequency bands.

摘要翻译： 发动机ECU包括仅抽取第一频带A的振动的带通滤波器（1），仅抽取第二频带B的振动的带通滤波器（2），仅提取第三频带的振动的带通滤波器（3） C和带通滤波器（4）仅提取包括第一至第三频带AC的第四频带D的振动。 发动机ECU基于第四频带D的振动波形和第一至第三频带的合成波形中的振动幅度的峰值来确定是否发生敲击。

公开(公告)号：US20090165746A1

公开(公告)日：2009-07-02

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： F02P5/00

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

摘要： An engine ECU executes a program including: a step (S310) of multiplying a correction amount of a determination value V(KX) by Q, when deviation L between an approximation value V(R), which is an average value of determination values V(KX) corrected according to the occurrence frequency of knocking, and an approximation value V(R−1) previously calculated is greater than a predetermined value (NO in S306) or when the number of times where deviation L is determined to be smaller than a predetermined value is smaller than a predetermined number of times (NO in S308); and a step (S312) of multiplying the correction amount of the determination value V(KX) by 1/P, when the number of times where the deviation L is determined to be smaller than a predetermined value is greater than a predetermined number of times (YES in S308). By comparing the determination value V(KX) and knock magnitude, determination of knocking is made, and ignition timing is advanced or retarded.

摘要翻译： 发动机ECU执行程序，包括：步骤（S310），当作为确定值V（KX）的校正量V（KX）的平均值V的近似值V（R） （KX），并且预先计算的近似值V（R-1）大于预定值（S306中为“否”），或者当偏差L被确定为小于 预定值小于预定次数（S308中为“否”）。 以及当确定偏差L小于预定值的次数时，将确定值V（KX）的校正量乘以1 / P的步骤（S312）大于预定次数 （S308中为“是”）。 通过比较判定值V（KX）和爆震振幅，进行敲击判定，点火正时进行或延迟。

公开(公告)号：US07363142B2

公开(公告)日：2008-04-22

申请号：US11678805

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： G06F19/00 ,  F02P5/00

CPC分类号： F02P5/152 ,  Y02T10/46

摘要： An engine ECU executes a program including the steps of: calculating a magnitude value LOG(V) from a magnitude V detected using a knock sensor; calculating a median value V(50) and a standard deviation a of calculated magnitude values LOG(V); calculating a knock determination level V(KD) that is a value obtained by adding the product of standard deviation a and a coefficient U(3) to median value V(50); and when knock determination level V(KD) is greater than the product of determination value V(KX) and a coefficient K, decreasing determination value V(KX). When a knock magnitude N calculated using magnitude V is greater than determination value V(KX), ignition timing is retarded.

摘要翻译： 发动机ECU执行程序，包括以下步骤：从使用爆震传感器检测的幅值V计算幅度值LOG（V）; 计算中值V（50）和计算的幅度值LOG（V）的标准偏差a; 计算通过将标准偏差a和系数U（3）的乘积加到中值V（50）而获得的值的爆震判定水平V（KD）; 当爆震判定水平V（KD）大于判定值V（KX）的乘积和系数K时，减小判定值V（KX）。 当使用振幅V计算的爆震振幅N大于判定值V（KX）时，点火正时被延迟。

公开(公告)号：US20070215108A1

公开(公告)日：2007-09-20

申请号：US11678805

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 ,  Y02T10/46

摘要： An engine ECU executes a program including the steps of: calculating a magnitude value LOG(V) from a magnitude V detected using a knock sensor; calculating a median value V(50) and a standard deviation a of calculated magnitude values LOG(V); calculating a knock determination level V(KD) that is a value obtained by adding the product of standard deviation a and a coefficient U(3) to median value V(50); and when knock determination level V(KD) is greater than the product of determination value V(KX) and a coefficient K, decreasing determination value V(KX). When a knock magnitude N calculated using magnitude V is greater than determination value V(KX), ignition timing is retarded.

摘要翻译： 发动机ECU执行程序，包括以下步骤：从使用爆震传感器检测的幅值V计算幅度值LOG（V）; 计算中值V（50）和计算的幅度值LOG（V）的标准偏差a; 计算通过将标准偏差a和系数U（3）的乘积加到中值V（50）而获得的值的爆震判定水平V（KD）; 当爆震判定水平V（KD）大于判定值V（KX）的乘积和系数K时，减小判定值V（KX）。 当使用振幅V计算的爆震振幅N大于判定值V（KX）时，点火正时被延迟。

公开(公告)号：US20060236753A1

公开(公告)日：2006-10-26

申请号：US11409079

申请日：2006-04-24

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

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

IPC分类号： G01L23/22 ,  G06G7/70 ,  G01M15/00

CPC分类号： G01L23/225

摘要： A knock waveform model (thick line) is prepared by correcting a line (thin line) representing an average value of a vibration waveform measured in advance to have more moderate inclination. The knocking determination device determines whether knocking occurred in an engine or not, based on a result of comparison between the knock waveform model and a waveform detected by a knock sensor.

摘要翻译： 通过将表示预先测量的振动波形的平均值的线（细线）校正为具有更适度的倾斜度来准备爆震波形模型（粗线）。 爆震判定装置基于爆震波形模型与爆震传感器检测到的波形的比较结果，判定发动机是否发生爆震。