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。

公开(公告)号：US20080000448A1

公开(公告)日：2008-01-03

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：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）。

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：US20160108847A1

公开(公告)日：2016-04-21

申请号：US14890332

申请日：2014-05-07

申请人： Tomohiro NAKANO ,  Eiji MURASE ,  Rihito KANEKO ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Tomohiro NAKANO ,  Eiji MURASE ,  Rihito KANEKO

IPC分类号： F02D41/40 ,  F02M63/00

CPC分类号： F02D41/40 ,  F02D41/20 ,  F02D41/2467 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2200/0602 ,  F02M63/0017 ,  H01F7/1844

摘要： An electronic control unit that calculates an injection standby period, which is a period from an energization start point of the solenoid to a point at which the fuel injection valve opens, and adjusts an energization period of the solenoid in accordance with the calculated injection standby period. The electronic control unit of the control apparatus for a fuel injection valve then measures a reference fall detection period, which is a period from the energization start point to a reference fall detection point, and sets the injection standby period to be longer as the reference fall detection period is longer. Here, the reference fall detection point is a point at which the excitation current detected by the current detection circuit falls below a reference current value, which is smaller than a peak current value, while the excitation current decreases after reaching the peak current value.

摘要翻译： 一种电子控制单元，其计算作为从螺线管的通电开始点到燃料喷射阀打开的时间段的喷射待机期间，并根据计算出的喷射待机期间调整螺线管的通电期间 。 然后，用于燃料喷射阀的控制装置的电子控制单元测量作为从通电开始点到基准下降检测点的时间段的基准下降检测周期，并将注入待机期间设定为更长的参考下降 检测期较长。 这里，基准下降检测点是由电流检测电路检测出的励磁电流低于峰值电流值的基准电流值，而在达到峰值电流值后，励磁电流降低的点。

公开(公告)号：US20160131074A1

公开(公告)日：2016-05-12

申请号：US14896548

申请日：2014-05-23

申请人： Tomohiro NAKANO ,  Eiji MURASE ,  Rihito KANEKO

发明人： Tomohiro NAKANO ,  Eiji MURASE ,  Rihito KANEKO

IPC分类号： F02D41/38 ,  F02M51/06 ,  F02D41/20

CPC分类号： F02D41/38 ,  F02D41/20 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2041/2017 ,  F02D2041/2048 ,  F02D2041/2058 ,  F02D2200/0602 ,  F02M51/061

摘要： A control device for a fuel injection valve includes a drive circuit that controls open/close operation of the fuel injection valve by passing an exciting current through a solenoid of the fuel injection valve and an ECU that reduces a peak current value as a fuel pressure in a delivery pipe at timing of a start of energization of the fuel injection valve decreases. The ECU reduces the peak current value as an amount of fuel discharged from a high-pressure fuel pump to the delivery pipe reduces.

摘要翻译： 用于燃料喷射阀的控制装置包括驱动电路，其通过使激励电流通过燃料喷射阀的螺线管和将峰值电流值减小为燃料压力的ECU来控制燃料喷射阀的打开/关闭操作 在燃料喷射阀的通电开始的定时，输送管减少。 当从高压燃料泵排出到输送管道的燃料量减少时，ECU降低峰值电流值。