公开(公告)号：US09657679B2

公开(公告)日：2017-05-23

申请号：US14382342

申请日：2013-03-05

申请人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Ryo Suzuki ,  Toyomori Tsuiki ,  Naoyuki Yamada

发明人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Ryo Suzuki ,  Toyomori Tsuiki ,  Naoyuki Yamada

IPC分类号： F02D41/30 ,  F02D41/00 ,  F02D41/14 ,  F02D41/24 ,  F02D41/40 ,  F02D41/08

CPC分类号： F02D41/30 ,  F02D41/008 ,  F02D41/0085 ,  F02D41/08 ,  F02D41/1498 ,  F02D41/2467 ,  F02D41/40 ,  F02D2200/0602 ,  F02D2250/04 ,  Y02T10/44

摘要： An electronic control unit, in an idle operating state, detects a crankshaft rotation fluctuation in each cylinder using a crank angle sensor, and updates an individual correction value for a control value for each fuel injection valve as a first learned value such that a degree of deviation in the crankshaft rotation fluctuation among the cylinders reduces. The electronic control unit uses a fuel pressure sensor to detect a manner of a fuel pressure fluctuation with fuel injection by each fuel injection valve, and updates an individual correction value for a control value for each fuel injection valve as a second learned value based on a result of comparison between a detected temporal waveform and a basic temporal waveform. In an idle operating state, a learning rate of the second learned value is reduced until the first learned value converges for the first time as compared with after its convergence.

公开(公告)号：US20150046066A1

公开(公告)日：2015-02-12

申请号：US14382342

申请日：2013-03-05

申请人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Ryo Suzuki ,  Toyomori Tsuiki ,  Naoyuki Yamada

发明人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Ryo Suzuki ,  Toyomori Tsuiki ,  Naoyuki Yamada

IPC分类号： F02D41/00 ,  F02D41/30

CPC分类号： F02D41/30 ,  F02D41/008 ,  F02D41/0085 ,  F02D41/08 ,  F02D41/1498 ,  F02D41/2467 ,  F02D41/40 ,  F02D2200/0602 ,  F02D2250/04 ,  Y02T10/44

摘要： An electronic control unit, in an idle operating state, detects a crankshaft rotation fluctuation in each cylinder using a crank angle sensor, and updates an individual correction value for a control value for each fuel injection valve as a first learned value such that a degree of deviation in the crankshaft rotation fluctuation among the cylinders reduces. The electronic control unit uses a fuel pressure sensor to detect a manner of a fuel pressure fluctuation with fuel injection by each fuel injection valve, and updates an individual correction value for a control value for each fuel injection valve as a second learned value based on a result of comparison between a detected temporal waveform and a basic temporal waveform. In an idle operating state, a learning rate of the second learned value is reduced until the first learned value converges for the first time as compared with after its convergence.

摘要翻译： 一种电子控制单元，在怠速运转状态下，利用曲轴转角传感器检测各气缸的曲轴旋转波动，并将每个燃料喷射阀的控制值的各个校正值更新为第一学习值， 气缸之间曲轴旋转波动的偏差减小。 电子控制单元使用燃料压力传感器，通过各燃料喷射阀的燃料喷射来检测燃料压力波动的方式，并且，将基于每个燃料喷射阀的每个燃料喷射阀的控制值的各个校正值作为第二学习值更新 检测到的时间波形与基本时间波形之间的比较结果。 在空闲运行状态下，减少第二学习值的学习率，直到第一学习值与收敛后相比第一次收敛为止为止。

公开(公告)号：US20150019110A1

公开(公告)日：2015-01-15

申请号：US14383240

申请日：2013-03-05

申请人： Ryo Suzuki ,  Takeshi Miyaura ,  Yoshiyasu Ito ,  Toyomori Tsuiki ,  Naoyuki Yamada

发明人： Ryo Suzuki ,  Takeshi Miyaura ,  Yoshiyasu Ito ,  Toyomori Tsuiki ,  Naoyuki Yamada

IPC分类号： F02D41/36

CPC分类号： F02D41/36 ,  F02D41/2467 ,  F02D41/40 ,  F02D2200/0602 ,  Y02T10/44

摘要： An electronic control unit detects a manner of fluctuation of a fuel pressure with injection of fuel by a fuel injection valve with the use of a fuel pressure sensor, and calculates a tendency of deviation of an actual fuel injection characteristic of the fuel injection valve with respect to a basic fuel injection characteristic on the basis of a result of comparison between a detected temporal waveform and a basic temporal waveform. The tendency of deviation is reflected at a predetermined reflection rate (R) at the time of updating a learned value (Gij) for compensating for an individual difference of the fuel injection valve. The predetermined reflection rate (R) is increased when an accumulated value (D) of a vehicle travel distance is shorter than a predetermined value (Dth) as compared with when the accumulated value (D) is longer than or equal to the predetermined value (Dth).

摘要翻译： 电子控制单元通过使用燃料压力传感器由燃料喷射阀喷射燃料来检测燃料压力的波动的方式，并且计算燃料喷射阀的实际燃料喷射特性相对于 基于检测到的时间波形与基本时间波形之间的比较结果，获得基本的燃料喷射特性。 在更新用于补偿燃料喷射阀的个体差异的学习值（Gij）时，以预定的反射率（R）反映偏差的趋势。 与当累积值（D）大于或等于预定值（D）相比，当车辆行驶距离的累积值（D）小于预定值（Dth）时，预定反射率（R）增加 Dth）。

公开(公告)号：US09989006B2

公开(公告)日：2018-06-05

申请号：US14383240

申请日：2013-03-05

申请人： Ryo Suzuki ,  Takeshi Miyaura ,  Yoshiyasu Ito ,  Toyomori Tsuiki ,  Naoyuki Yamada

发明人： Ryo Suzuki ,  Takeshi Miyaura ,  Yoshiyasu Ito ,  Toyomori Tsuiki ,  Naoyuki Yamada

IPC分类号： F02D41/24 ,  F02D41/40 ,  F02D41/36

CPC分类号： F02D41/36 ,  F02D41/2467 ,  F02D41/40 ,  F02D2200/0602 ,  Y02T10/44

摘要： An electronic control unit detects a manner of fluctuation of a fuel pressure with injection of fuel by a fuel injection valve with the use of a fuel pressure sensor, and calculates a tendency of deviation of an actual fuel injection characteristic of the fuel injection valve with respect to a basic fuel injection characteristic on the basis of a result of comparison between a detected temporal waveform and a basic temporal waveform. The tendency of deviation is reflected at a predetermined reflection rate (R) at the time of updating a learned value (Gij) for compensating for an individual difference of the fuel injection valve. The predetermined reflection rate (R) is increased when an accumulated value (D) of a vehicle travel distance is shorter than a predetermined value (Dth) as compared with when the accumulated value (D) is longer than or equal to the predetermined value (Dth).

公开(公告)号：US08833147B2

公开(公告)日：2014-09-16

申请号：US13418754

申请日：2012-03-13

申请人： Toyomori Tsuiki

发明人： Toyomori Tsuiki

IPC分类号： G01M15/00 ,  F02M57/00 ,  F02D41/22

CPC分类号： F02D41/221 ,  F02D2041/224 ,  F02D2200/0602 ,  F02M57/005 ,  Y02T10/40

摘要： Based on a detection signal of a fuel pressure sensor provided in a first fuel injector, an ECU determines whether a fuel pressure in a first fuel injector is increased over a specified amount when a second fuel injector provided with no fuel pressure sensor terminates a fuel injection. When the ECU determines that the fuel pressure in the first fuel injector is increased over a specified amount, it is diagnosed that the second fuel injector does not have a malfunction of continuous injection.

摘要翻译： 基于设置在第一燃料喷射器中的燃料压力传感器的检测信号，当设置有没有燃料压力传感器的第二燃料喷射器终止燃料喷射时，ECU判断第一燃料喷射器中的燃料压力是否增加超过规定量 。 当ECU确定第一燃料喷射器中的燃料压力增加超过规定量时，诊断为第二燃料喷射器不具有连续喷射的故障。

公开(公告)号：US07891339B2

公开(公告)日：2011-02-22

申请号：US12058153

申请日：2008-03-28

申请人： Hidekazu Takahashi ,  Toyomori Tsuiki

发明人： Hidekazu Takahashi ,  Toyomori Tsuiki

IPC分类号： F02M63/00

CPC分类号： F02D41/40 ,  F02D41/2467 ,  F02D41/3845 ,  F02D2041/389 ,  F02D2200/0602 ,  Y02T10/44

摘要： A control apparatus is provided to control a fuel injection apparatus. The fuel injection apparatus includes an accumulator that accumulates high-pressure fuel, at least one injector that injects the high-pressure fuel accumulated in the accumulator into a cylinder of an internal combustion engine, and a pressure sensor that senses fuel pressure in the accumulator and outputs a signal indicative of the sensed fuel pressure. The control apparatus includes an estimator, a determiner, and a setter. The estimator estimates an actual injection duration of the injector. The determiner determines, during the actual injection duration estimated by the estimator, a value of the fuel pressure in the accumulator based on the signal output from the pressure sensor. The setter sets a manipulated variable for controlling fuel injection quantity of the injector based on the value of the fuel pressure determined by the determiner.

摘要翻译： 提供控制装置来控制燃料喷射装置。 燃料喷射装置包括：蓄积器，其积存高压燃料;至少一个喷射器，其将累积在蓄能器中的高压燃料喷射到内燃机的气缸中;以及压力传感器，其感测蓄能器中的燃料压力; 输出表示感测到的燃料压力的信号。 控制装置包括估计器，确定器和设定器。 估计器估计注射器的实际注射持续时间。 在由估计器估计的实际喷射持续时间期间，确定器基于从压力传感器输出的信号确定累加器中的燃料压力的值。 设定器基于由确定器确定的燃料压力的值来设定用于控制喷射器的燃料喷射量的操作变量。

公开(公告)号：US20080236547A1

公开(公告)日：2008-10-02

申请号：US12058153

申请日：2008-03-28

申请人： Hidekazu Takahashi ,  Toyomori Tsuiki

发明人： Hidekazu Takahashi ,  Toyomori Tsuiki

IPC分类号： F02M63/00

CPC分类号： F02D41/40 ,  F02D41/2467 ,  F02D41/3845 ,  F02D2041/389 ,  F02D2200/0602 ,  Y02T10/44

摘要： A control apparatus is provided to control a fuel injection apparatus. The fuel injection apparatus includes an accumulator that accumulates high-pressure fuel, at least one injector that injects the high-pressure fuel accumulated in the accumulator into a cylinder of an internal combustion engine, and a pressure sensor that senses fuel pressure in the accumulator and outputs a signal indicative of the sensed fuel pressure. The control apparatus includes an estimator, a determiner, and a setter. The estimator estimates an actual injection duration of the injector. The determiner determines, during the actual injection duration estimated by the estimator, a value of the fuel pressure in the accumulator based on the signal output from the pressure sensor. The setter sets a manipulated variable for controlling fuel injection quantity of the injector based on the value of the fuel pressure determined by the determiner.

摘要翻译： 提供控制装置来控制燃料喷射装置。 燃料喷射装置包括：蓄积器，其积存高压燃料;至少一个喷射器，其将累积在蓄能器中的高压燃料喷射到内燃机的气缸中;以及压力传感器，其感测蓄能器中的燃料压力， 输出表示感测到的燃料压力的信号。 控制装置包括估计器，确定器和设定器。 估计器估计注射器的实际注射持续时间。 在由估计器估计的实际喷射持续时间期间，确定器基于从压力传感器输出的信号确定累加器中的燃料压力的值。 设定器基于由确定器确定的燃料压力的值来设定用于控制喷射器的燃料喷射量的操作变量。