公开(公告)号：US08297240B2

公开(公告)日：2012-10-30

申请号：US12787853

申请日：2010-05-26

申请人： Masaomi Inoue ,  Yuichi Takemura

发明人： Masaomi Inoue ,  Yuichi Takemura

IPC分类号： F01L1/00

CPC分类号： F02D41/263 ,  F01L1/3442 ,  F01L2001/34453 ,  F01L2001/34463 ,  F01L2820/041 ,  F02D41/0002 ,  F02D41/2464 ,  F02D2041/001

摘要： A variable valve timing control apparatus for an internal combustion engine having a crankshaft and a camshaft, the variable valve timing control apparatus including a hydraulic variable valve timing device, an intermediate lock mechanism, and an oil pressure control device. The control apparatus learns an intermediate lock position to obtain a learning value of the intermediate lock position when the intermediate lock mechanism locks the VCT phase at the intermediate lock position. The control apparatus computes an actual VCT phase based on the learning value of the intermediate lock position. The control apparatus computes a target VCT phase in accordance with an operational condition of the engine based on the learning value of the intermediate lock position. The control apparatus controls a control amount of the oil pressure control device such that the actual VCT phase becomes the target VCT phase.

摘要翻译： 一种具有曲轴和凸轮轴的内燃机的可变气门正时控制装置，所述可变气门正时控制装置包括液压可变气门正时装置，中间锁定机构和油压控制装置。 当中间锁定机构将VCT相位锁定在中间锁定位置时，控制装置学习中间锁定位置以获得中间锁定位置的学习值。 控制装置基于中间锁定位置的学习值来计算实际VCT相位。 控制装置基于中间锁定位置的学习值，根据发动机的运转状况来计算目标VCT相位。 控制装置控制油压控制装置的控制量，使得实际VCT相位成为目标VCT相位。

公开(公告)号：US08005607B2

公开(公告)日：2011-08-23

申请号：US12095988

申请日：2006-12-04

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： F02P5/152 ,  G06F19/00 ,  H03F1/26

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

摘要： An engine ECU executes a program that includes: calculating a median value and a standard deviation based on a calculated value based on the detected vibration of the engine; and subtracting a product of the standard deviation and a coefficient from the median value to calculate a magnitude of mechanical vibration specific to the engine. Knocking determination is carried out by comparing a knock magnitude calculated by dividing the magnitude value of the peak magnitude of the detected vibration of the engine by the magnitude of mechanical vibration specific to the engine with a predetermined determination value. Based on the knocking determination result, ignition timing of the engine is controlled.

摘要翻译： 发动机ECU执行程序，其包括：基于检测到的发动机的振动，基于计算值来计算中值和标准偏差; 并从中值减去标准偏差乘积和系数，计算出发动机特有的机械振动的大小。 通过将通过将发动机的检测振动的峰值的幅度值除以预定的确定值的发动机特有的机械振动的大小来计算的敲击量进行敲击确定。 基于敲击判定结果，控制发动机的点火正时。

公开(公告)号：US20100305835A1

公开(公告)日：2010-12-02

申请号：US12787853

申请日：2010-05-26

申请人： Masaomi Inoue ,  Yuichi Takemura

发明人： Masaomi Inoue ,  Yuichi Takemura

IPC分类号： F02D41/26 ,  F01L1/34

CPC分类号： F02D41/263 ,  F01L1/3442 ,  F01L2001/34453 ,  F01L2001/34463 ,  F01L2820/041 ,  F02D41/0002 ,  F02D41/2464 ,  F02D2041/001

摘要： A variable valve timing control apparatus for an internal combustion engine having a crankshaft and a camshaft, the variable valve timing control apparatus including a hydraulic variable valve timing device, an intermediate lock mechanism, and an oil pressure control device. The control apparatus learns an intermediate lock position to obtain a learning value of the intermediate lock position when the intermediate lock mechanism locks the VCT phase at the intermediate lock position. The control apparatus computes an actual VCT phase based on the learning value of the intermediate lock position. The control apparatus computes a target VCT phase in accordance with an operational condition of the engine based on the learning value of the intermediate lock position. The control apparatus controls a control amount of the oil pressure control device such that the actual VCT phase becomes the target VCT phase.

摘要翻译： 一种具有曲轴和凸轮轴的内燃机的可变气门正时控制装置，所述可变气门正时控制装置包括液压可变气门正时装置，中间锁定机构和油压控制装置。 当中间锁定机构将VCT相位锁定在中间锁定位置时，控制装置学习中间锁定位置以获得中间锁定位置的学习值。 控制装置基于中间锁定位置的学习值来计算实际VCT相位。 控制装置基于中间锁定位置的学习值，根据发动机的运转状况来计算目标VCT相位。 控制装置控制油压控制装置的控制量，使得实际VCT相位成为目标VCT相位。

公开(公告)号：US20100288215A1

公开(公告)日：2010-11-18

申请号：US12777746

申请日：2010-05-11

申请人： Yuichi TAKEMURA ,  Minoru WADA

发明人： Yuichi TAKEMURA ,  Minoru WADA

IPC分类号： F01L1/34

CPC分类号： F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34463 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2800/05

摘要： In a variable valve timing control apparatus, a hydraulic variable valve timing device adjusts valve timing by changing a VCT phase. In a lock mode, the lock pin is allowed to be displaced in a lock direction for locking the VCT phase, and the VCT phase is slightly shifted in a lock-mode VCT phase shift direction corresponding to one of an advance direction and a retard direction. A lock control unit shifts the VCT phase in a direction opposite from the VCT phase shift direction if the VCT phase is located on a lock-mode VCT phase shift direction side of the intermediate lock position when the engine becomes equal to or less than a first rotational speed, and otherwise the lock control unit allows the lock pin to be displaced in the lock direction.

摘要翻译： 在可变气门正时控制装置中，液压可变气门正时装置通过改变VCT相位来调节气门正时。 在锁定模式下，锁定销被允许在锁定方向上移位以锁定VCT相位，并且VCT相位在对应于前进方向和延迟方向之一的锁定模式VCT相移方向上稍微移动 。 如果VCT相位在中间锁定位置的锁定模式VCT相移方向侧，则发动机变为等于或小于第一位置时，锁定控制单元将VCT相位沿VCT相移方向相反的方向移动 旋转速度，否则锁定控制单元允许锁定销在锁定方向上移位。

公开(公告)号：US07653477B2

公开(公告)日：2010-01-26

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： G06F19/00 ,  F02P5/152

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：US20080294328A1

公开(公告)日：2008-11-27

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： G01L23/22 ,  G06F19/00

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 (S222) of increasing a determination value V(J) by a correction amount A(3) if the number of knock intensities N not lower than the determination value V(J) is not smaller than a threshold value B(1) (YES at S220) among knock intensities N of a plurality of predetermined number of continuous ignition cycles; and the step (S232) of increasing the determination value V(J) by a correction amount A(5) if the number of knock intensities N not smaller than the determination value V(J) is not smaller than a threshold value B(3) (YES at S230), among knock intensities N of a plurality of ignition cycles satisfying the condition that a coefficient of correlation K calculated by comparing a vibration waveform and a knock waveform model is not smaller than a threshold value K(1), 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：如果不低于确定值V（J）的爆震强度N的数目不小于将确定值V（J）增加校正量A（3）的步骤（S222） 在多个预定数量的连续点火循环的爆震强度N之间超过阈值B（1）（S220处的“是”）。 如果不小于确定值V（J）的爆震强度N的数量不小于阈值B（3），则将确定值V（J）增加校正量A（5）的步骤（S232） ）（S230中为“是”），在满足通过比较振动波形和爆震波形模型而计算的相关系数K不小于阈值K（1）的条件的多个点火循环的爆震强度N中， 多个预定的连续点火循环的爆震强度。

公开(公告)号：US20080264150A1

公开(公告)日：2008-10-30

申请号：US12163342

申请日：2008-06-27

申请人： Shuhei Oe ,  Kiyoshi Iwade ,  Nobuyuki Murate ,  Rihito Kaneko ,  Yuichi Takemura ,  Shigeru Kamio

发明人： Shuhei Oe ,  Kiyoshi Iwade ,  Nobuyuki Murate ,  Rihito Kaneko ,  Yuichi Takemura ,  Shigeru Kamio

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 vibration corresponding to a first radial resonance mode by using a band-pass filter, from vibrations sensed by an in-cylinder pressure sensor provided at an upper central portion of the cylinder; calculating knock intensity N based on a result of comparison between the detected waveform and a knock waveform model prepared in advance as a vibration waveform when knocking occurs; determining that knocking occurred when the knock intensity N is larger than a predetermined reference value; and determining that knocking has not occurred when the knock intensity N is not larger than the predetermined reference value.

摘要翻译： 发动机ECU执行程序，包括以下步骤：通过使用带通滤波器从由设置在气缸的上中心部的缸内压力传感器检测到的振动来检测与第一径向共振模式相对应的振动; 基于检测波形与预先准备的爆震波形模型之间的比较结果，计算爆震强度N作为爆震时的振动波形; 确定当爆震强度N大于预定参考值时发生爆震; 并且当爆震强度N不大于预定参考值时，确定没有发生爆震。

公开(公告)号：US20080234918A1

公开(公告)日：2008-09-25

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

IPC分类号： F02D45/00

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。

公开(公告)号：US07424820B2

公开(公告)日：2008-09-16

申请号：US11475231

申请日：2006-06-27

申请人： Kiyoshi Iwade ,  Nobuyuki Murate ,  Shuhei Oe ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura

发明人： Kiyoshi Iwade ,  Nobuyuki Murate ,  Shuhei Oe ,  Rihito Kaneko ,  Kenji Kasashima ,  Yuichi Takemura

IPC分类号： G01L23/22 ,  F01P5/14

CPC分类号： G01L23/225

摘要： An engine ECU executes a program including a step of calculating intensity values LOG(V) based on signals transmitted from a knock sensor; a step of deciding a maximum value V(MAX) in frequency distribution of intensity values LOG(V) for N cycles (N is a natural number); a step of calculating a knock determination level V(KD) based on the frequency distribution; a step of, when the knock determination level V(KD) is smaller than the maximum value V(MAX), removing V(MAX) from the frequency distribution; and a step of counting the total frequency of removed maximum values V(MAX) as knock occupancy KC. Maximum values V(MAX) are removed until the knock determination level V(KD) and the maximum value V(MAX) coincide, and the knock determination level V(KD) is recalculated.

摘要翻译： 发动机ECU执行包括基于从爆震传感器发送的信号来计算强度值LOG（V）的步骤的程序; 在N个周期（N是自然数）中确定强度值LOG（V）的频率分布的最大值V（MAX）的步骤; 基于频率分布计算爆震判定电平V（KD）的步骤; 当爆震判定电平V（KD）小于最大值V（MAX）时，从频率分布中去除V（MAX）的步骤; 以及将去除的最大值V（MAX）的总频率计数为敲击占有率KC的步骤。 去除最大值V（MAX），直到爆震判定水平V（KD）和最大值V（MAX）重合为止，并重新计算爆震判定水平V（KD）。

公开(公告)号：US20070215109A1

公开(公告)日：2007-09-20

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）。