公开(公告)号：US08307695B2

公开(公告)日：2012-11-13

申请号：US12678828

申请日：2009-02-05

申请人： Takeshi Miyaura ,  Yasuyuki Terada ,  Akio Matsunaga

发明人： Takeshi Miyaura ,  Yasuyuki Terada ,  Akio Matsunaga

IPC分类号： G01M15/00

CPC分类号： F02D41/0025 ,  F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D35/025 ,  F02D35/026 ,  F02D41/0007 ,  F02D41/123 ,  F02D41/1498 ,  F02D41/2422 ,  F02D41/402 ,  F02D2200/0612 ,  Y02T10/36

摘要： A cetane number estimation method is provided in which: the preliminary injection is preformed multiple times at different compression end temperatures with a fuel tank (26) containing fuel having a predetermined cetane number, and an engine torque increase caused by each preliminary injection is calculated and the relation between the compression end temperatures at the respective preliminary injections and the engine torque increases caused by the respective preliminary injections is determined; the compression end temperature and the engine torque increase at a predetermined reference point on the relation are recorded as a basic compression eng temperature and a basic engine toque increase; the preliminary injection is performed at the basic compression end temperature and an engine torque increase caused by this preliminary injection is calculated; and the cetane number of fuel is estimated based on the relation between the calculated engine torque increase and the basic engine torque increase.

摘要翻译： 提供一种十六烷值估计方法，其中：在具有预定十六烷值的燃料的燃料箱（26）中，在不同的压缩终止温度下进行多次预备喷射，并且计算由每次预喷射引起的发动机转矩增加， 确定各个预喷射时的压缩终止温度与由各个预喷射引起的发动机转矩增加之间的关系; 关系上的预定基准点处的压缩结束温度和发动机转矩增加被记录为基本压缩ENG温度和基本发动机转矩增加; 在基本压缩终止温度下进行预喷射，并计算由该预喷射引起的发动机转矩增加; 并且基于计算的发动机转矩增加与基本发动机转矩增加之间的关系来估计燃料的十六烷值。

公开(公告)号：US20100319444A1

公开(公告)日：2010-12-23

申请号：US12678828

申请日：2009-02-05

申请人： Takeshi Miyaura ,  Yasuyuki Terada ,  Akio Matsunaga

发明人： Takeshi Miyaura ,  Yasuyuki Terada ,  Akio Matsunaga

IPC分类号： G01M15/04

CPC分类号： F02D41/0025 ,  F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D35/025 ,  F02D35/026 ,  F02D41/0007 ,  F02D41/123 ,  F02D41/1498 ,  F02D41/2422 ,  F02D41/402 ,  F02D2200/0612 ,  Y02T10/36

摘要： A cetane number estimation method is provided in which: the preliminary injection is preformed multiple times at different compression end temperatures with a fuel tank (26) containing fuel having a predetermined cetane number, and an engine torque increase caused by each preliminary injection is calculated and the relation between the compression end temperatures at the respective preliminary injections and the engine torque increases caused by the respective preliminary injections is determined; the compression end temperature and the engine torque increase at a predetermined reference point on the relation are recorded as a basic compression eng temperature and a basic engine toque increase; the preliminary injection is performed at the basic compression end temperature and an engine torque increase caused by this preliminary injection is calculated; and the cetane number of fuel is estimated based on the relation between the calculated engine torque increase and the basic engine torque increase.

摘要翻译： 提供一种十六烷值估计方法，其中：在具有预定十六烷值的燃料的燃料箱（26）中，在不同的压缩终止温度下进行多次预备喷射，并且计算由每次预喷射引起的发动机转矩增加， 确定各个预喷射时的压缩终止温度与由各个预喷射引起的发动机转矩增加之间的关系; 关系上的预定基准点处的压缩结束温度和发动机转矩增加被记录为基本压缩ENG温度和基本发动机转矩增加; 在基本压缩终止温度下进行预喷射，并计算由该预喷射引起的发动机转矩增加; 并且基于计算的发动机转矩增加与基本发动机转矩增加之间的关系来估计燃料的十六烷值。

公开(公告)号：US08538664B2

公开(公告)日：2013-09-17

申请号：US12738461

申请日：2008-11-13

申请人： Takeshi Miyaura ,  Yasuyuki Terada ,  Atsushi Morikawa

发明人： Takeshi Miyaura ,  Yasuyuki Terada ,  Atsushi Morikawa

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  G06G7/70

CPC分类号： F02D41/403 ,  F02D19/0605 ,  F02D19/061 ,  F02D19/0628 ,  F02D19/0649 ,  F02D19/0684 ,  F02D19/088 ,  F02D41/0025 ,  F02D41/123 ,  F02D41/1498 ,  F02D41/40 ,  F02D41/401 ,  F02D41/405 ,  F02D2200/0612 ,  F02D2200/1015 ,  F02D2250/28 ,  Y02T10/36 ,  Y02T10/44

摘要： An electronic controller for a diesel engine (1) performs primary injection control in which primary injection of fuel is controlled based on an operational status of the diesel engine and additional injection control in which additional injection of the fuel is controlled for estimation of a cetane number of the fuel. The electronic controller includes a control means that, as the additional injection control, causes a plurality of fuel injections to be performed at different injection timings as the additional injection, calculates the amount of increase in torque of a crankshaft (14) due to each of the fuel injections, estimates injection timing at which misfiring starts to occur based on a trend of variation in the calculated torque increase amount as the injection timing of the fuel injections is shifted in one direction, and estimates the cetane number of the fuel based on the estimated injection timing.

摘要翻译： 用于柴油发动机（1）的电子控制器执行主喷射控制，其中基于柴油发动机的操作状态来控制燃料的初次喷射，并且附加喷射控制，其中控制燃料的附加喷射以估计十六烷值 的燃料。 电子控制器包括控制装置，作为附加喷射控制，作为附加喷射，以不同的喷射正时进行多次燃料喷射，计算由于每个喷射时间而产生的曲轴（14）的扭矩的增加量 燃料喷射，根据燃料喷射的喷射正时在一个方向上移动时，基于计算出的转矩增加量的变化趋势开始发生失火的喷射正时，并且基于燃料喷射来估计燃料的十六烷值 估计喷射正时。

公开(公告)号：US20100268444A1

公开(公告)日：2010-10-21

申请号：US12738461

申请日：2008-11-13

申请人： Takeshi Miyaura ,  Yasuyuki Terada ,  Atsushi Morikawa

发明人： Takeshi Miyaura ,  Yasuyuki Terada ,  Atsushi Morikawa

IPC分类号： F02D41/30 ,  F02B3/00

CPC分类号： F02D41/403 ,  F02D19/0605 ,  F02D19/061 ,  F02D19/0628 ,  F02D19/0649 ,  F02D19/0684 ,  F02D19/088 ,  F02D41/0025 ,  F02D41/123 ,  F02D41/1498 ,  F02D41/40 ,  F02D41/401 ,  F02D41/405 ,  F02D2200/0612 ,  F02D2200/1015 ,  F02D2250/28 ,  Y02T10/36 ,  Y02T10/44

摘要： An electronic controller for a diesel engine (1) performs primary injection control in which primary injection of fuel is controlled based on an operational status of the diesel engine and additional injection control in which additional injection of the fuel is controlled for estimation of a cetane number of the fuel. The electronic controller includes a control means that, as the additional injection control, causes a plurality of fuel injections to be performed at different injection timings as the additional injection, calculates the amount of increase in torque of a crankshaft (14) due to each of the fuel injections, estimates injection timing at which misfiring starts to occur based on a trend of variation in the calculated torque increase amount as the injection timing of the fuel injections is shifted in one direction, and estimates the cetane number of the fuel based on the estimated injection timing.

摘要翻译： 用于柴油发动机（1）的电子控制器执行主喷射控制，其中基于柴油发动机的操作状态来控制燃料的初次喷射，并且附加喷射控制，其中控制燃料的附加喷射以估计十六烷值 的燃料。 电子控制器包括控制装置，作为附加喷射控制，作为附加喷射，以不同的喷射正时进行多次燃料喷射，计算由于每个喷射时间而产生的曲轴（14）的扭矩的增加量 燃料喷射，根据燃料喷射的喷射正时在一个方向上移动时，基于计算出的转矩增加量的变化趋势开始发生失火的喷射正时，并且基于燃料喷射来估计燃料的十六烷值 估计喷射正时。

公开(公告)号：US09051895B2

公开(公告)日：2015-06-09

申请号：US13581555

申请日：2011-02-23

申请人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Makio Tsuchiyama ,  Yoshihiro Furuya

发明人： Takeshi Miyaura ,  Yoshiyasu Ito ,  Makio Tsuchiyama ,  Yoshihiro Furuya

IPC分类号： F02D41/40

CPC分类号： F02D41/402 ,  F02D41/40 ,  F02D41/401 ,  F02D41/403 ,  F02D41/405 ,  Y02T10/44

摘要： This apparatus is applied to an engine equipped with a fuel supply system that supplies pressure-increased fuel to a fuel injection valve, and performs the fuel injection from the injection valve in one combustion cycle by a multiple injection process that includes a pre-injection and a main injection that are executed with an interval therebetween. The apparatus calculates a deviation between a required value (one-dot chain line) and an actual value (solid line) regarding the end timing of the pre-injection, based on the manner of fluctuation of the fuel pressure in the fuel injection that is detected by a pressure sensor. A target main injection timing and a target pre-interval are individually set on the basis of the state of operation of the engine. Based on the deviation, the target main injection timing and the target pre-interval, the apparatus sets control target values regarding the execution period of the pre-injection.

摘要翻译： 该装置应用于配备有向燃料喷射阀供应增压燃料的燃料供给系统的发动机，并且通过包括预喷射的多次喷射处理在一个燃烧循环中执行从喷射阀的燃料喷射， 以其间隔间隔执行的主喷射。 该装置基于燃料喷射中的燃料压力的波动方式，计算关于预喷射的结束时刻的所需值（单点划线）和实际值（实线）之间的偏差 由压力传感器检测。 基于发动机的运转状况，分别设定目标主喷射正时和目标预先间隔。 基于偏差，目标主喷射正时和目标预先间隔，该装置设定关于预喷射的执行周期的控制目标值。

公开(公告)号：US08820151B2

公开(公告)日：2014-09-02

申请号：US13884231

申请日：2011-11-25

申请人： Yoshiyasu Ito ,  Takeshi Miyaura ,  Makio Tsuchiyama

发明人： Yoshiyasu Ito ,  Takeshi Miyaura ,  Makio Tsuchiyama

IPC分类号： G01M15/00

CPC分类号： F02M65/00 ,  F02D41/0025 ,  F02D41/1497

摘要： A cetane number estimation apparatus injects fuel from a fuel injection valve in a diesel engine based on a target fuel injection amount, calculates an indicator of output torque of the diesel engine produced through fuel injection, and estimates the cetane number of the fuel using the calculated indicator. The cetane number estimation apparatus includes a pressure sensor for detecting fuel pressure varied by variation in actual fuel pressure in the fuel injection valve at the time of the fuel injection. The cetane number estimation apparatus also has a pressure correcting section that is adapted to calculate actual operating characteristics of the fuel injection valve based on a variation waveform of the detected fuel pressure and corrects the target fuel injection amount based on the difference between the calculated actual operating characteristics and prescribed reference operating characteristics.

摘要翻译： 十六烷值估计装置基于目标燃料喷射量从柴油发动机中的燃料喷射阀喷射燃料，计算通过燃料喷射产生的柴油机的输出转矩的指标，并使用计算出的燃料量来估计燃料的十六烷值 指示符。 十六烷值估计装置包括用于检测在燃料喷射时由燃料喷射阀中的实际燃料压力的变化而变化的燃料压力的压力传感器。 十六烷值估计装置还具有压力校正部，该压力校正部根据检测到的燃料压力的变化波形来计算燃料喷射阀的实际工作特性，并根据计算出的实际运转时的差来校正目标燃料喷射量 特点和规定的参考工作特点。

公开(公告)号：US20140013832A1

公开(公告)日：2014-01-16

申请号：US14004221

申请日：2011-03-29

申请人： Makio Tsuchiyama ,  Yoshiyasu Ito ,  Takeshi Miyaura

发明人： Makio Tsuchiyama ,  Yoshiyasu Ito ,  Takeshi Miyaura

IPC分类号： G01N33/22

CPC分类号： G01N33/22 ,  F02D1/16 ,  F02D1/162 ,  F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D41/0025 ,  F02D41/1497 ,  F02D2200/0602 ,  F02D2200/0612 ,  F02D2200/1012 ,  Y02T10/36

摘要： In order to estimate the cetane number of a fuel, fuel injection is executed by controlling the driving of a fuel injection valve by a prescribed amount. The amount of change in the rotation of a diesel engine generated in response to the fuel injection is detected, and the cetane number of the fuel is estimated on the basis of this amount of change in the rotation. The actual amount of fuel injected from the fuel injection valve is detected, and when the difference between the amount actually detected and the prescribed amount is equal to or greater than a threshold value, the execution of the fuel cetane number estimation process is restricted.

摘要翻译： 为了估计燃料的十六烷值，通过控制燃料喷射阀的驱动规定量来执行燃料喷射。 检测响应于燃料喷射而产生的柴油机的旋转变化量，并且基于该旋转变化量来估计燃料的十六烷值。 检测从燃料喷射阀喷射的燃料的实际量，并且当实际检测量与规定量之差等于或大于阈值时，限制了燃料十六烷值估计处理的执行。

公开(公告)号：US08527182B2

公开(公告)日：2013-09-03

申请号：US12993403

申请日：2009-07-16

申请人： Masahiro Minami ,  Takeshi Miyaura

发明人： Masahiro Minami ,  Takeshi Miyaura

IPC分类号： B60T7/12

CPC分类号： F02D41/1402 ,  F02D41/123 ,  F02D41/2438 ,  F02D41/2441 ,  F02D41/2448 ,  F02D41/2467 ,  F02D2400/12

摘要： A fuel injection amount control apparatus for an internal combustion engine includes an ECU that commands a learning-purpose injection when a first learning condition regarding operation state and a second learning condition regarding load connection state are satisfied, and calculates an injection performance value that corresponds to the actual injection amount based on the amount of change in rotation speed, and further determines whether a delay of the learning process is permitted based on whether the learning process, despite occurrence of the delay, can be completed before the injector performance reaches a permissible limit value, and forces, when the delay is not permitted, the load connection state to be a specific connection state so as to satisfy the second learning condition. When it is determined that the delay of the learning process is permitted, the delay is permitted until the two learning conditions are satisfied.

摘要翻译： 一种用于内燃机的燃料喷射量控制装置包括：当满足关于运行状态的第一学习条件和关于负载连接状态的第二学习条件时，指示学习目的注入的ECU，并且计算与 基于旋转速度的变化量的实际喷射量，并且还基于在喷射器性能达到允许极限之前是否能够完成学习过程，尽管发生延迟，还可以确定是否允许学习过程的延迟 值和力，当不允许延迟时，负载连接状态为特定连接状态，以满足第二学习条件。 当确定允许学习处理的延迟时，允许延迟直到两个学习条件得到满足。

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：US20130220006A1

公开(公告)日：2013-08-29

申请号：US13884231

申请日：2011-11-25

申请人： Yoshiyasu Ito ,  Takeshi Miyaura ,  Makio Tsuchiyama

发明人： Yoshiyasu Ito ,  Takeshi Miyaura ,  Makio Tsuchiyama

IPC分类号： F02M65/00

CPC分类号： F02M65/00 ,  F02D41/0025 ,  F02D41/1497

摘要： A cetane number estimation apparatus injects fuel from a fuel injection valve in a diesel engine based on a target fuel injection amount, calculates an indicator of output torque of the diesel engine produced through fuel injection, and estimates the cetane number of the fuel using the calculated indicator. The cetane number estimation apparatus includes a pressure sensor for detecting fuel pressure varied by variation in actual fuel pressure in the fuel injection valve at the time of the fuel injection. The cetane number estimation apparatus also has a pressure correcting section that is adapted to calculate actual operating characteristics of the fuel injection valve based on a variation waveform of the detected fuel pressure and corrects the target fuel injection amount based on the difference between the calculated actual operating characteristics and prescribed reference operating characteristics.

摘要翻译： 十六烷值估计装置基于目标燃料喷射量从柴油发动机中的燃料喷射阀喷射燃料，计算通过燃料喷射产生的柴油机的输出转矩的指标，并使用计算出的燃料量来估计燃料的十六烷值 指示符。 十六烷值估计装置包括用于检测在燃料喷射时由燃料喷射阀中的实际燃料压力的变化而变化的燃料压力的压力传感器。 十六烷值估计装置还具有压力校正部，该压力校正部根据检测到的燃料压力的变化波形来计算燃料喷射阀的实际工作特性，并根据计算出的实际运转时的差来校正目标燃料喷射量 特点和规定的参考工作特点。