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：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：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。

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：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：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：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。

公开(公告)号：US07206691B2

公开(公告)日：2007-04-17

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 ,  G01L23/22

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。

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。