公开(公告)号：US08437942B2

公开(公告)日：2013-05-07

申请号：US12197447

申请日：2008-08-25

申请人： Kenichiro Nakata ,  Koji Ishizuka ,  Ru Long Li

发明人： Kenichiro Nakata ,  Koji Ishizuka ,  Ru Long Li

IPC分类号： F02D41/30 ,  F02D41/04 ,  F02M47/02

CPC分类号： F02D41/3809 ,  F02D41/40 ,  F02D41/402 ,  F02D2200/0604 ,  F02D2250/04 ,  F02M57/005 ,  F02M2200/24 ,  Y02T10/44

摘要： A fuel injection characteristic sensing device obtains an injection characteristic of a target injector (an injector of each cylinder of a multi-cylinder engine) at each time. The device has a program for sequentially sensing fuel pressure at a sensing point corresponding to a fuel pressure sensor, which is provided at a fuel inlet of each injector, based on an output of the fuel pressure sensor. The device has a program for detecting predetermined timings (injection timings such as an injection start timing and an injection end timing) in a series of operations concerning fuel injection of the injector of each cylinder based on the sequentially sensed fuel pressure. Thus, the injection characteristic at each time including a temporal characteristic change can be obtained.

摘要翻译： 燃料喷射特性检测装置每次获得目标喷射器（多缸发动机的各气缸的喷射器）的喷射特性。 该装置具有用于根据燃料压力传感器的输出，在每个喷射器的燃料入口设置的燃料压力传感器对应的检测点依次感测燃料压力的程序。 该装置具有用于根据依次检测到的燃料压力在每个气缸的喷射器的燃料喷射的一系列操作中检测预定定时（喷射开始定时和喷射结束定时的喷射定时）的程序。 因此，可以获得每次包括时间特性变化的喷射特性。

公开(公告)号：US07873460B2

公开(公告)日：2011-01-18

申请号：US12210440

申请日：2008-09-15

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/40 ,  F02M47/02

CPC分类号： F02D41/3836 ,  F02D41/222 ,  F02D2041/223 ,  F02D2200/0602 ,  F02D2250/31 ,  F02M57/005

摘要： A fuel pressure sensor is provided to each fuel injector respectively and is disposed in a fuel passage between the accumulator and a fuel injection port of the fuel injector in such a manner as to be close to a fuel injection port relative to the accumulator. Output values of a plurality of fuel pressure sensors are acquired, and an average of the output values is computed. The output values are corrected in such a manner as to agree with the average.

摘要翻译： 燃料压力传感器分别设置在每个燃料喷射器上，并且设置在蓄能器和燃料喷射器的燃料喷射口之间的燃料通道中，以便靠近相对于蓄能器的燃料喷射口。 获取多个燃料压力传感器的输出值，并计算输出值的平均值。 输出值以与平均值一致的方式进行纠正。

公开(公告)号：US20090107227A1

公开(公告)日：2009-04-30

申请号：US12258726

申请日：2008-10-27

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： G01M15/04

CPC分类号： F02D41/0072 ,  F02B29/0406 ,  F02D41/0055 ,  F02D41/0085 ,  F02D41/1497 ,  F02D41/2451 ,  F02D41/3809 ,  F02D2200/0614 ,  F02D2200/1002 ,  F02D2250/04 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/47

摘要： An exhaust gas recirculation distribution variation sensing device has a torque sensing section that senses instantaneous torque caused with combustion of fuel injected from an injector for each cylinder, an injection quantity sensing section that senses an actual injection quantity of the injected fuel for each cylinder and an exhaust gas recirculation distribution variation calculating section that calculates an exhaust gas recirculation distribution variation as a distribution variation of recirculated exhaust gas to respective cylinders based on a variation in the torque sensing value of the torque sensing section among the cylinders (i.e., a torque variation) and a variation in the injection quantity sensing value of the injection quantity sensing section among the cylinders (i.e., an injection quantity variation).

摘要翻译： 废气再循环分配变化检测装置具有转矩检测部，其感测从每个气缸的喷射器喷射的燃料的燃烧引起的瞬时转矩;喷射量感测部，其感测每个气缸的喷射燃料的实际喷射量;以及 废气再循环分配变化计算部，其基于所述气缸中的所述转矩检测部的转矩检测值的变化（即，转矩变动量），计算排气再循环分配变化，作为所述再循环排气到各气缸的分布变化， 以及气缸中的喷射量感测部的喷射量感测值的变化（即喷射量变化）。

公开(公告)号：US20090107225A1

公开(公告)日：2009-04-30

申请号：US12258750

申请日：2008-10-27

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： G01M15/04 ,  F02D41/30

CPC分类号： F02D41/403 ,  F02D41/12 ,  F02D41/1498 ,  F02D41/2438 ,  F02D41/247 ,  F02D2250/04 ,  Y02T10/44

摘要： A cylinder characteristic variation sensing device has a small injection controlling section that performs small injections sequentially in respective cylinders, a torque increase amount sensing section that senses an increase amount of output torque caused in connection with the small injection for each cylinder, an injection quantity sensing section that senses an actual injection quantity of the small injection for each cylinder, and a cylinder characteristic variation calculating section that calculates a variation in a cylinder characteristic among the cylinders (i.e., a cylinder characteristic variation) based on a variation in the sensing value of the injection quantity sensing section among the cylinders (i.e., an injection quantity variation) and a variation in the sensing value of the torque increase amount sensing section among the cylinders (i.e. a torque increase amount variation).

摘要翻译： 气缸特性变化检测装置具有小型喷射控制部分，其在各个气缸中顺序地进行小喷射;扭矩增加量感测部分，其感测与每个气缸的小喷射相关联的输出转矩增加量;喷射量感测 感测每个气缸的小喷射的实际喷射量的气缸部分，以及气缸特性变化计算部分，其基于感测值的变化来计算气缸之间的气缸特性变化（即气缸特性变化） 气缸之间的喷射量感测部（即喷射量变化）和转矩增加量感测部的感测值的变化（即，转矩增加量变化）。

公开(公告)号：US20090063013A1

公开(公告)日：2009-03-05

申请号：US12197447

申请日：2008-08-25

申请人： Kenichiro NAKATA ,  Koji Ishizuka ,  Ru Long Li

发明人： Kenichiro NAKATA ,  Koji Ishizuka ,  Ru Long Li

IPC分类号： F02D41/00

CPC分类号： F02D41/3809 ,  F02D41/40 ,  F02D41/402 ,  F02D2200/0604 ,  F02D2250/04 ,  F02M57/005 ,  F02M2200/24 ,  Y02T10/44

摘要： A fuel injection characteristic sensing device obtains an injection characteristic of a target injector (an injector of each cylinder of a multi-cylinder engine) at each time. The device has a program for sequentially sensing fuel pressure at a sensing point corresponding to a fuel pressure sensor, which is provided at a fuel inlet of each injector, based on an output of the fuel pressure sensor. The device has a program for detecting predetermined timings (injection timings such as an injection start timing and an injection end timing) in a series of operations concerning fuel injection of the injector of each cylinder based on the sequentially sensed fuel pressure. Thus, the injection characteristic at each time including a temporal characteristic change can be obtained.

摘要翻译： 燃料喷射特性检测装置每次获得目标喷射器（多缸发动机的各气缸的喷射器）的喷射特性。 该装置具有用于根据燃料压力传感器的输出，在每个喷射器的燃料入口设置的燃料压力传感器对应的检测点依次感测燃料压力的程序。 该装置具有用于根据依次检测到的燃料压力在每个气缸的喷射器的燃料喷射的一系列操作中检测预定定时（喷射开始定时和喷射结束定时的喷射定时）的程序。 因此，可以获得每次包括时间特性变化的喷射特性。

公开(公告)号：US20090056677A1

公开(公告)日：2009-03-05

申请号：US12186038

申请日：2008-08-05

申请人： Kenichiro NAKATA ,  Koji Ishizuka

发明人： Kenichiro NAKATA ,  Koji Ishizuka

IPC分类号： F02M51/06 ,  F02D41/30

CPC分类号： F02D41/221 ,  F02D41/2435 ,  F02D41/2467 ,  F02D41/3836 ,  F02D41/40 ,  F02D41/402 ,  F02D2200/0602 ,  F02D2200/0604 ,  F02D2200/0618 ,  Y02T10/44

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 of the fuel injection valve. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel and configured to detect pressure of fuel. The fuel injection device further includes a storage unit for storing individual difference information, which indicates an injection characteristic of the fuel injection valve. The injection characteristic is obtained by an examination. The individual difference information indicates a relationship between an injection state when the fuel injection valve performs fuel injection and a fluctuation in detected pressure of the pressure sensor. The fluctuation is attributed to the fuel injection.

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燃料喷射阀的喷嘴孔的燃料通道中。 压力传感器比压力蓄积容器位于更靠近喷嘴孔的位置，并被配置成检测燃料的压力。 燃料喷射装置还包括存储单元，用于存储指示燃料喷射阀的喷射特性的各个差异信息。 通过检查获得注射特性。 各个差异信息表示燃料喷射阀进行燃料喷射时的喷射状态与压力传感器的检测压力的波动之间的关系。 波动归因于燃油喷射。

公开(公告)号：US20090056676A1

公开(公告)日：2009-03-05

申请号：US12189376

申请日：2008-08-11

申请人： Kenichiro NAKATA ,  Koji Ishizuka

发明人： Kenichiro NAKATA ,  Koji Ishizuka

IPC分类号： F02M51/06

CPC分类号： F02D41/40 ,  F02D41/221 ,  F02D41/2435 ,  F02D41/2467 ,  F02D41/3836 ,  F02D2200/0602 ,  F02D2250/04 ,  F02M57/005 ,  F02M2200/24 ,  Y02T10/44

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, and configured to detect pressure of the fuel. The pressure sensor is located closer to the nozzle hole than the pressure-accumulation vessel. A storage unit stores individual difference information, which indicates an injection characteristic of the fuel injection valve, the injection characteristic being obtained by an examination. The individual difference information is related to a fluctuation pattern of a portion of the fluctuation in detected pressure waveform of the pressure sensor. The fluctuation is attributed to one fuel injection through the nozzle hole. The portion of the fluctuation is subsequent to an end of the fuel injection.

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，并构造成检测燃料的压力。 压力传感器比压力蓄积容器更靠近喷嘴孔。 存储单元存储指示燃料喷射阀的喷射特性的各个差异信息，通过检查获得的喷射特性。 个体差异信息与压力传感器的检测压力波形的波动的一部分的波动模式相关。 波动归因于通过喷嘴孔的一次燃料喷射。 波动的一部分在燃料喷射结束之后。

公开(公告)号：US07284538B2

公开(公告)日：2007-10-23

申请号：US11508280

申请日：2006-08-23

申请人： Koji Ishizuka ,  Kenichiro Nakata

发明人： Koji Ishizuka ,  Kenichiro Nakata

IPC分类号： F02D31/00 ,  F02D41/30

CPC分类号： F02D41/009 ,  F02D41/042 ,  F02D41/123 ,  F02D41/22 ,  G01M15/046

摘要： A rotation angle sensing device calculates an average value of calculation values of time necessary for rotation of each one of sections provided by equally dividing one rotation of a crankshaft. The device calculates an average value of the average values of the entire sections to calculate an entire section average value. The device calculates ratios of the average values of the respective sections to the entire section average value. The device eliminates an influence of rotation fluctuation of the crankshaft from the ratios by using reference ratios, which are calculated as ratios of the average values of the respective sections to the entire section average value in the case where there is no structural error. Thus, the device calculates learning values for compensating for the structural error.

摘要翻译： 旋转角度检测装置计算通过使曲轴的一次旋转等分而提供的每个部分的旋转所需的时间的计算值的平均值。 该装置计算整个部分的平均值的平均值以计算整个部分平均值。 该装置计算各部分的平均值与整个部分平均值的比率。 该装置通过使用在不存在结构错误的情况下以各部分的平均值与整个截面平均值的比率计算的参考比来消除曲轴的旋转波动对比率的影响。 因此，该装置计算用于补偿结构误差的学习值。

公开(公告)号：US09267459B2

公开(公告)日：2016-02-23

申请号：US13161740

申请日：2011-06-16

申请人： Kenichiro Nakata ,  Koji Ishizuka

发明人： Kenichiro Nakata ,  Koji Ishizuka

IPC分类号： F02D41/20 ,  F02D41/24

CPC分类号： F02D41/2096 ,  F02D41/2441 ,  F02D2041/2086

摘要： A fuel-injector-replacement device obtains a learning value of characteristic data of an injector while an engine is running. The learning value stored in an ECU is updated into the learning value. When the engine is stopped, the characteristic data stored in an INJ-EEPROM are updated into the characteristic data stored in the ECU. When the engine is started, it is determined whether the characteristic data stored in the ECU agrees with the characteristic data stored in the INJ-EEPROM. When these data do not agree with each other, it is determined that the fuel-injector is improperly replaced without updating the characteristic data stored in the ECU.

摘要翻译： 燃料喷射器更换装置在发动机运行时获得喷射器的特征数据的学习值。 存储在ECU中的学习值被更新为学习值。 当发动机停止时，存储在INJ-EEPROM中的特征数据被更新为存储在ECU中的特征数据。 当发动机启动时，确定存储在ECU中的特征数据是否与存储在INJ-EEPROM中的特征数据一致。 当这些数据彼此不一致时，确定在不更新存储在ECU中的特征数据的情况下不正确地更换燃料喷射器。

公开(公告)号：US20120158268A1

公开(公告)日：2012-06-21

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： G06F19/00

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。