公开(公告)号：US20060005816A1

公开(公告)日：2006-01-12

申请号：US11169730

申请日：2005-06-30

申请人： Koji Ishizuka ,  Takayuki Fukushima ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Takayuki Fukushima ,  Kenichiro Nakata

IPC分类号： F02M59/46

CPC分类号： F02M47/027 ,  F02D41/1401 ,  F02D41/3809 ,  F02D41/402 ,  F02D2041/1433 ,  F02D2200/0625 ,  F02D2200/063 ,  F02M45/10 ,  F02M63/0225 ,  Y02T10/44

摘要： During a short duration injection, a triangular geometry is drawn in terms of the injection rate with respect to time, while a trapezoidal geometry is drawn during a long duration injection. The ON timing of the drive pulse is determined to be at a valve opening pressure achieving time before the start point of formation in time of the geometry. An injection pulse duration is determined from “the valve opening pressure achieving time+a needle rise time—a valve closing pressure achieving time,” and then the OFF timing of the drive pulse is determined.

摘要翻译： 在短时间喷射期间，以相对于时间的喷射速率绘制三角形几何形状，而在长时间喷射期间绘制梯形几何形状。 驱动脉冲的接通定时被确定为在几何形状时刻的形成开始点之前的开阀压力达到时间。 从“开阀压力达到时间+针上升时间 - 关闭压力达到时间”确定喷射脉冲持续时间，然后确定驱动脉冲的OFF定时。

公开(公告)号：US09127612B2

公开(公告)日：2015-09-08

申请号：US13325531

申请日：2011-12-14

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  F02D41/24

CPC分类号： F02D41/2467 ,  F02D41/2429 ,  F02D41/2438 ,  F02D41/2451 ,  F02D41/2461 ,  F02D41/2464 ,  F02D2200/0602 ,  F02D2200/0606

摘要： A characteristics-detecting-portion analyzes a fuel injection condition based on a fuel pressure waveform which represents a variation in a detection value of the fuel pressure sensor and then detects the fuel-injection-characteristic value based on the analyzed fuel injection condition. The detected parameter is learned and stored in a memory in association with a fuel temperature detected by a fuel temperature sensor. A fuel-injection-rate model is established based on the learned detected parameters. A command-fuel-injection start time and a command-fuel-injection period are defined by use of the fuel-injection-rate model and the current fuel temperature.

摘要翻译： 特性检测部分基于表示燃料压力传感器的检测值的变化的燃料压力波形来分析燃料喷射状态，然后基于分析的燃料喷射条件来检测燃料喷射特性值。 与由燃料温度传感器检测到的燃料温度相关联地将所检测的参数学习并存储在存储器中。 基于学习的检测参数建立燃料喷射率模型。 通过使用燃料喷射率模型和当前燃料温度来定义指令燃料喷射开始时间和指令燃料喷射时段。

公开(公告)号：US08539935B2

公开(公告)日：2013-09-24

申请号：US12187638

申请日：2008-08-07

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02M51/00 ,  G06F19/00 ,  G06G7/70

CPC分类号： F02D41/3836 ,  F02D41/221 ,  F02D41/2435 ,  F02D41/2467 ,  F02D41/247 ,  F02D2200/0602 ,  F02D2250/04

摘要： A fuel injection device includes a fuel injection valve for injecting fuel, which is distributed from a pressure-accumulation vessel. A pressure sensor is located in a fuel passage, which extends from the pressure-accumulation vessel to a nozzle hole. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. A storage unit stores individual difference information obtained by an examination. The individual difference information indicates an injection characteristic of the fuel injection valve and indicates at least one of an injection response time delay between an injection start point and a time point, at which a fluctuation is caused by the start of fuel injection in detected pressure of the pressure sensor, and a parameter for calculating the injection response time delay.

摘要翻译： 燃料喷射装置包括从蓄压容器分配的用于喷射燃料的燃料喷射阀。 压力传感器位于从蓄压容器延伸到喷嘴孔的燃料通道中。 压力传感器比压力蓄积容器更靠近喷嘴孔。 存储单元存储通过检查获得的个体差异信息。 个体差异信息表示燃料喷射阀的喷射特性，并且表示喷射开始点和时间点之间的喷射响应时间延迟中的至少一个，其中由检测到的压力下的燃料喷射开始引起波动 压力传感器和用于计算喷射响应时间延迟的参数。

公开(公告)号：US08100112B2

公开(公告)日：2012-01-24

申请号：US12235917

申请日：2008-09-23

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/30

CPC分类号： F02M57/005 ,  F02D41/123 ,  F02D41/2441 ,  F02D41/2451 ,  F02D41/40 ,  Y02T10/44

摘要： A variation waveform of fuel pressure is obtained by use of a fuel pressure sensor which detects pressure of fuel supplied to an injector. A quantity of fuel supplied to the injector is estimated based on a waveform of the detected pressure that is greater than a reference value due to a fuel pumping, in the obtained variation waveform. Especially, in a case that the fuel pressure sensor is provided to each of a plurality of injectors, it is desirable to obtain the variation waveform based on the output of the fuel pressure sensor provided to a cylinder in which no fuel injection is currently performed.

摘要翻译： 通过使用检测供给到喷射器的燃料的压力的燃料压力传感器来获得燃料压力的变化波形。 在获得的变化波形中，基于由于燃料泵送而大于参考值的检测压力的波形来估计供应到喷射器的燃料量。 特别地，在将燃料压力传感器设置在多个喷射器中的情况下，希望基于设置在当前不进行燃料喷射的气缸的燃料压力传感器的输出而获得变化波形。

公开(公告)号：US07865293B2

公开(公告)日：2011-01-04

申请号：US12179235

申请日：2008-07-24

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： F02M51/00 ,  F02M51/06

CPC分类号： F02D41/40 ,  F02D2200/0602 ,  F02M57/005 ,  Y02T10/44

摘要： A fuel injection control device (ECU) for controlling injection supply of fuel to a target engine includes a program for sequentially sensing fuel pressure fluctuating with injection of a predetermined injector of each cylinder of a multi-cylinder engine based on an output of a fuel pressure sensor, a program for detecting a diagram as a profile of a transition of a fuel quantity injected from the injector per unit time (i.e., an injection rate) at a present time based on the sequentially sensed fuel pressure transition, and a program for varying an injection command to the injector based on the diagram that is the profile of the injection rate transition and that is detected by the latter program and a predetermined basic diagram such that the diagram as the actual profile of the injection rate transition belongs to the basic diagram.

摘要翻译： 一种用于控制向目标发动机的燃料喷射供应的燃料喷射控制装置（ECU）包括用于根据燃料压力的输出依次感测燃料压力波动的程序，其中喷射多气缸发动机的每个气缸的预定喷射器 传感器，用于基于依次感测到的​​燃料压力转换，将当前时间内从喷射器喷射的燃料量的过渡（即，喷射速率）的曲线图检测到的程序，以及用于变化的程序 基于作为喷射速率转换的轮廓的图并且由后一程序检测的喷射指令和预定的基本图，使得作为喷射率转换的实际轮廓的图属于基本图 。

公开(公告)号：US07792632B2

公开(公告)日：2010-09-07

申请号：US12256100

申请日：2008-10-22

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： F02D41/14 ,  F02D41/40 ,  G06F19/00

CPC分类号： F02D41/18 ,  F02D33/02 ,  F02D41/1402 ,  F02D41/22

摘要： An intake air quantity correcting device calculates an intake air quantity as a sensing target of an airflow meter (an intake air quantity sensor) based on an injection quantity sensing value sensed with a fuel pressure sensor (an injection quantity sensor) and an oxygen concentration sensing value sensed with an A/F sensor (an oxygen concentration sensor). The intake air quantity correcting device regards a difference between the intake air quantity calculation value calculated in this way and an intake air quantity sensing value sensed with the airflow meter as a sensing error of the airflow meter and corrects the intake air quantity sensing value of the airflow meter based on the sensing error.

摘要翻译： 进气量校正装置基于用燃料压力传感器（喷射量传感器）感测的喷射量感测值和氧浓度感测来计算作为气流计（吸入空气量传感器）的感测对象的进气量 用A / F传感器（氧浓度传感器）感测的值。 进气量校正装置将以这种方式计算出的进气量计算值与用气流计检测到的进气量感测值之间的差作为气流计的感测误差，校正进气量检测值 气流计基于感测误差。

公开(公告)号：US20090084357A1

公开(公告)日：2009-04-02

申请号：US12235917

申请日：2008-09-23

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/30

CPC分类号： F02M57/005 ,  F02D41/123 ,  F02D41/2441 ,  F02D41/2451 ,  F02D41/40 ,  Y02T10/44

摘要： A variation waveform of fuel pressure is obtained by use of a fuel pressure sensor which detects pressure of fuel supplied to an injector. A quantity of fuel supplied to the injector is estimated based on a waveform of the detected pressure that is greater than a reference value due to a fuel pumping, in the obtained variation waveform. Especially, in a case that the fuel pressure sensor is provided to each of a plurality of injectors, it is desirable to obtain the variation waveform based on the output of the fuel pressure sensor provided to a cylinder in which no fuel injection is currently performed.

摘要翻译： 通过使用检测供给到喷射器的燃料的压力的燃料压力传感器来获得燃料压力的变化波形。 在获得的变化波形中，基于由于燃料泵送而大于参考值的检测压力的波形来估计供应到喷射器的燃料量。 特别地，在将燃料压力传感器设置在多个喷射器中的情况下，希望基于设置在当前不进行燃料喷射的气缸的燃料压力传感器的输出而获得变化波形。

公开(公告)号：US20090063010A1

公开(公告)日：2009-03-05

申请号：US12194130

申请日：2008-08-19

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/30

CPC分类号： F02D41/401 ,  F02D35/028 ,  F02D41/2467 ,  F02D41/3809 ,  F02D41/40 ,  F02D2200/0602 ,  F02D2250/04 ,  F02M2200/24 ,  Y02T10/44

摘要： A fuel injection control device (ECU) for controlling injection supply of fuel to a target engine has a program for sequentially sensing fuel pressure fluctuating with injection of a predetermined injector a program for detecting an injection centroid of a diagram as a profile of a transition of an injection rate of the injector at a present time based on a transition of the sequentially sensed fuel pressure, and a program for varying an injection command (injection timing) of the injector based on the detected injection centroid and an injection centroid of a predetermined basic diagram such that a relative positional relationship between the injection centroids of the diagram as the actual profile of the injection rate transition and the basic diagram becomes a relationship, in which timings of the injection centroids are close to each other.

摘要翻译： 用于控制向目标发动机的燃料喷射供应的燃料喷射控制装置（ECU）具有用于依次感测燃料压力波动的程序，喷射预定喷射器，用于检测图的喷射重心的程序作为转换轮廓的轮廓 基于顺序感测的燃料压力的转变，目前的喷射器的喷射速度和用于根据检测到的喷射重心改变喷射器的喷射命令（喷射正时）的程序和预定基准的喷射重心 使得作为喷射速率转变的实际轮廓的图的喷射质心与基本图之间的相对位置关系成为其中喷射质心的定时彼此接近的关系。

公开(公告)号：US20090056678A1

公开(公告)日：2009-03-05

申请号：US12187638

申请日：2008-08-07

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02M61/16 ,  F02M65/00

CPC分类号： F02D41/3836 ,  F02D41/221 ,  F02D41/2435 ,  F02D41/2467 ,  F02D41/247 ,  F02D2200/0602 ,  F02D2250/04

摘要： A fuel injection device includes a fuel injection valve for injecting fuel, which is distributed from a pressure-accumulation vessel. A pressure sensor is located in a fuel passage, which extends from the pressure-accumulation vessel to a nozzle hole. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. A storage unit stores individual difference information obtained by an examination. The individual difference information indicates an injection characteristic of the fuel injection valve and indicates at least one of an injection response time delay between an injection start point and a time point, at which a fluctuation is caused by the start of fuel injection in detected pressure of the pressure sensor, and a parameter for calculating the injection response time delay.

摘要翻译： 燃料喷射装置包括从蓄压容器分配的用于喷射燃料的燃料喷射阀。 压力传感器位于从蓄压容器延伸到喷嘴孔的燃料通道中。 压力传感器比压力蓄积容器更靠近喷嘴孔。 存储单元存储通过检查获得的个体差异信息。 个体差异信息表示燃料喷射阀的喷射特性，并且表示喷射开始点和时间点之间的喷射响应时间延迟中的至少一个，其中由检测到的压力下的燃料喷射开始引起波动 压力传感器和用于计算喷射响应时间延迟的参数。

公开(公告)号：US07021278B2

公开(公告)日：2006-04-04

申请号：US11169730

申请日：2005-06-30

申请人： Koji Ishizuka ,  Takayuki Fukushima ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Takayuki Fukushima ,  Kenichiro Nakata

IPC分类号： F02M47/00

CPC分类号： F02M47/027 ,  F02D41/1401 ,  F02D41/3809 ,  F02D41/402 ,  F02D2041/1433 ,  F02D2200/0625 ,  F02D2200/063 ,  F02M45/10 ,  F02M63/0225 ,  Y02T10/44

摘要： A fuel injection system includes an injector and a control device. The injector includes a control chamber that drive-controls a needle with a pressure therein. The control device determines a required injection amount in accordance with an operation state of an internal combustion engine, and controls a fuel injection amount injected from the injector through controlling an electric valve therein. The control device determines a geometric shape defined by a time axis and a lift-height change of the needle. The control device further divides the lift-height change of the needle during the period from when the needle starts moving up to when the needle starts moving down into a plurality of portions. The control device then evaluates the lift-height change of the needle in the plurality of portions based on a physical equation.

摘要翻译： 燃料喷射系统包括喷射器和控制装置。 喷射器包括控制室，该控制室以其中的压力驱动控制针。 控制装置根据内燃机的运转状态决定所需的喷射量，通过控制电动阀来控制从喷射器喷射的燃料喷射量。 控制装置确定由时间轴限定的几何形状和针的升高高度变化。 控制装置在从针开始向上移动到针开始向下移动到多个部分的期间，进一步分割针的升高高度变化。 然后，控制装置基于物理方程来评估多个部分中的针的升高高度变化。