公开(公告)号：US08566005B2

公开(公告)日：2013-10-22

申请号：US12731431

申请日：2010-03-25

申请人： Naoyuki Yamada ,  Koji Ishizuka

发明人： Naoyuki Yamada ,  Koji Ishizuka

IPC分类号： F02D41/30 ,  F02M63/00

CPC分类号： F02D41/401 ,  F02D2200/0602 ,  F02D2250/04 ,  F02M47/027 ,  F02M63/0225 ,  Y02T10/44

摘要： An actual maximum fuel injection rate is computed based on a falling waveform and a rising waveform of the fuel pressure. The falling waveform represents the fuel pressure detected by a fuel sensor during a period in which the fuel pressure increases due to a fuel injection rate decrease. The rising waveform represents the fuel pressure detected by the fuel sensor during a period in which the fuel pressure decreases due to a fuel injection rate increase. The falling waveform and the rising waveform are modeled by modeling functions. A reference pressure is computed based on pressure during a specified time period before the falling waveform is generated. An intersection pressure is computed, at which the straight lines expressed by the modeling functions intersect to each other. The maximum fuel injection rate is computed based on a fuel pressure drop from the reference pressure to the intersection pressure.

摘要翻译： 基于下降波形和燃料压力的上升波形来计算实际的最大燃料喷射率。 下降波形表示在燃料压力由于燃料喷射速率降低而增加的时段期间由燃料传感器检测到的燃料压力。 上升波形表示燃料传感器在由于燃料喷射率增加而燃料压力降低的时段期间检测到的燃料压力。 下降波形和上升波形由建模功能建模。 基于在产生下降波形之前的指定时间段内的压力来计算参考压力。 计算交叉压力，在该交点压力下，由建模功能表达的直线彼此相交。 基于从参考压力到交叉口压力的燃料压降来计算最大燃料喷射速率。

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：US08306719B2

公开(公告)日：2012-11-06

申请号：US12486038

申请日：2009-06-17

申请人： Koji Ishizuka

发明人： Koji Ishizuka

IPC分类号： G06F19/00

CPC分类号： F02D43/02 ,  F02D41/2448 ,  F02D41/2474 ,  F02D41/2477 ,  F02D41/2483

摘要： A learning device changes each of multiple parameters to an increased side and to a decreased side with respect to a reference value set for each of the multiple parameters. The learning device calculates an approximation degree for each combination of the changes of the multiple parameters. The learning device performs update by using the combination of the changes providing the highest approximation degree among the approximation degrees as the combination of the updated reference values when an update end condition is not satisfied. The update end condition is a condition that the approximation degree at the reference values is higher than any of the approximation degrees after the change. The learning device decides the reference values as learning values of the multiple parameters when the update end condition is satisfied.

摘要翻译： 学习装置将多个参数中的每一个相对于针对多个参数中的每个参数设置的参考值将增加的一侧和减小的一侧改变。 学习装置计算多个参数的变化的每个组合的近似度。 当更新结束条件不满足时，学习装置通过使用提供近似度之间的最高近似度的变化的组合作为更新的参考值的组合来执行更新。 更新结束条件是参考值的近似度高于变化后的任何近似度的条件。 当满足更新结束条件时，学习装置将参考值确定为多个参数的学习值。

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：US20100319443A1

公开(公告)日：2010-12-23

申请号：US12817286

申请日：2010-06-17

申请人： Kenichiro NAKATA ,  Koji Ishizuka

发明人： Kenichiro NAKATA ,  Koji Ishizuka

IPC分类号： F02M65/00 ,  F02D41/30

CPC分类号： F02D41/28 ,  F02D41/008 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2400/08 ,  F02M57/005

摘要： A fuel temperature sensing device has fuel temperature sensors provided to respective cylinders for sensing fuel temperature. Each fuel temperature sensor is arranged in a position closer to an injection hole than to a pressure accumulator in a fuel passage extending from the pressure accumulator to the injection hole. The device has an average value calculating section for calculating an average value of fuel temperature sensing values sensed with the fuel temperature sensors of the respective cylinders. The device has a deviation calculating section for calculating deviations between the average value and the fuel temperature sensing values of the respective fuel temperature sensors. The device has a correcting section for correcting the fuel temperature sensing value of each fuel temperature sensor to approximate the deviation to zero for each fuel temperature sensor.

摘要翻译： 燃料温度感测装置具有设置在各个气缸上的用于检测燃料温度的燃料温度传感器。 每个燃料温度传感器布置在比从蓄压器延伸到喷射孔的燃料通道中的压力蓄积器更靠近喷射孔的位置。 该装置具有用于计算用各个气缸的燃料温度传感器感测的燃料温度感测值的平均值的平均值计算部。 该装置具有用于计算各个燃料温度传感器的平均值和燃料温度感测值之间的偏差的偏差计算部。 该装置具有用于校正每个燃料温度传感器的燃料温度感测值以将每个燃料温度传感器的偏差近似为零的校正部分。

公开(公告)号：US20100250097A1

公开(公告)日：2010-09-30

申请号：US12731431

申请日：2010-03-25

申请人： Naoyuki YAMADA ,  Koji Ishizuka

发明人： Naoyuki YAMADA ,  Koji Ishizuka

IPC分类号： F02D41/30 ,  F02M63/00

CPC分类号： F02D41/401 ,  F02D2200/0602 ,  F02D2250/04 ,  F02M47/027 ,  F02M63/0225 ,  Y02T10/44

摘要： An actual maximum fuel injection rate is computed based on a falling waveform and a rising waveform of the fuel pressure. The falling waveform represents the fuel pressure detected by a fuel sensor during a period in which the fuel pressure increases due to a fuel injection rate decrease. The rising waveform represents the fuel pressure detected by the fuel sensor during a period in which the fuel pressure decreases due to a fuel injection rate increase. The falling waveform and the rising waveform are modeled by modeling functions. A reference pressure is computed based on pressure during a specified time period before the falling waveform is generated. An intersection pressure is computed, at which the straight lines expressed by the modeling functions intersect to each other. The maximum fuel injection rate is computed based on a fuel pressure drop from the reference pressure to the intersection pressure.

摘要翻译： 基于下降波形和燃料压力的上升波形来计算实际的最大燃料喷射率。 下降波形表示在燃料压力由于燃料喷射速率降低而增加的时段期间由燃料传感器检测到的燃料压力。 上升波形表示燃料传感器在由于燃料喷射率增加而燃料压力降低的时段期间检测到的燃料压力。 下降波形和上升波形由建模功能建模。 基于在产生下降波形之前的指定时间段内的压力来计算参考压力。 计算交叉压力，在该交点压力下，由建模功能表达的直线彼此相交。 基于从参考压力到交叉口压力的燃料压降来计算最大燃料喷射速率。

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：US07599784B2

公开(公告)日：2009-10-06

申请号：US12212994

申请日：2008-09-18

申请人： Koji Ishizuka ,  Kouichi Sugiyama ,  Tetsuya Ohno ,  Manabu Tsujimura

发明人： Koji Ishizuka ,  Kouichi Sugiyama ,  Tetsuya Ohno ,  Manabu Tsujimura

IPC分类号： B60T7/12 ,  F02D41/00

CPC分类号： F02D41/1498 ,  F02D41/2438 ,  F02D41/247 ,  F02D41/248

摘要： A fuel injection system designed to execute a learning operation to spray fuel through a fuel injector in a cycle to calculate an average of actual injection quantities for correcting an injection duration so as to minimize a deviation of the average from a target quantity. The system samples the actual injection quantities for a given period of time made up of a first and a second time section. In each of the first and second time sections, the system decides whether each of the actual injection quantities is suitable for use in calculating the average or not. When a desired number of the actual injection quantities decided to be suitable for the calculation of the average has been derived in the first time section, the system proceeds to the second time section to calculate the average. This enhances the accuracy in determining the quantity of fuel actually sprayed from the fuel injector.

摘要翻译： 一种燃料喷射系统，其被设计为执行学习操作，以循环中的燃料喷射器喷射燃料，以计算用于校正喷射持续时间的实际喷射量的平均值，以使平均值与目标量的偏差最小化。 系统在由第一和第二时间段组成的给定时间段内对实际喷射量进行采样。 在第一和第二时间段中的每一个中，系统确定每个实际喷射量是否适合于计算平均值。 当在第一时间段中导出了确定适合于平均值的计算的所需数量的实际喷射量时，系统进行到第二时间段以计算平均值。 这提高了确定从燃料喷射器实际喷射的燃料量的准确性。

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。