公开(公告)号：US09835523B2

公开(公告)日：2017-12-05

申请号：US14380561

申请日：2013-02-27

申请人： Tsuyoshi Misaizu ,  Kazuo Takahashi ,  Yoshihiko Soga ,  Hiromichi Yasuda

发明人： Tsuyoshi Misaizu ,  Kazuo Takahashi ,  Yoshihiko Soga ,  Hiromichi Yasuda

IPC分类号： G01M15/08 ,  G01L23/10 ,  F02D35/02

CPC分类号： G01M15/08 ,  F02D35/023 ,  G01L23/10

摘要： A combustion pressure detection device for detecting combustion pressure inside a combustion chamber of an internal combustion engine, the combustion pressure detection device being attachable to a communication hole communicating an inside of a cylinder head configuring the combustion chamber and an outside thereof, the combustion pressure detection device includes: a housing; and an piezoelectric element and the like that are located in the housing and detect the combustion pressure. The housing has an attachment structural part attachable to the communication hole, the attachment structural part has a third outer peripheral surface to which a first seal member is attachable, and a inclined surface to which a second seal member is attachable, and the inclined surface is arranged at a front end side in a direction to the combustion chamber relative to the third outer peripheral surface when the combustion pressure detection device is attached to the communication hole.

公开(公告)号：US08831856B2

公开(公告)日：2014-09-09

申请号：US13002228

申请日：2010-04-19

申请人： Hiromichi Yasuda ,  Yusuke Suzuki ,  Soichiro Tanaka

发明人： Hiromichi Yasuda ,  Yusuke Suzuki ,  Soichiro Tanaka

IPC分类号： F02D28/00

CPC分类号： F02D35/028 ,  F02D35/024 ,  F02D41/0255 ,  F02D41/1498

摘要： An apparatus for controlling an internal combustion engine that can estimate a quantity of heat generated is provided.An arithmetic processing unit 20 can calculate PVκ variable according to a crank angle θ and dPVκ/dθ as a rate of change in PVκ. For convenience' sake, a “crank angle at which dPVκ/dθ is a maximum while PVκ is increasing” is to mean a “crank angle at a combustion proportion of 50%” and be referred to also as “θCA50”. PVκ calculated for θCA50 is to be referred to also as “PVκCA50”. In addition, for convenience' sake, a difference between PVκ (which is zero in the embodiment as shown in FIGS. 3 and 4) and PVκCA50 at a start of combustion is also referred to as ΔPVκCA50. A total quantity of heat generated Q is assumed to be twice as much as a value of ΔPVκCA50.

摘要翻译： 提供了一种用于控制可以估计产生的热量的内燃机的装置。 算术处理单元20可以计算PV＆kgr; 根据曲柄角度可变; 和dPV＆kgr; / d＆thetas; 作为PV＆kgr的变化率。 为方便起见，一个“曲轴角度dPV＆kgr; / d＆thetas; 是最大值，而PV＆kgr; 正在增加“是指”燃烧比例为50％的曲柄角“，也称为”＆theta; CA50“。 PV＆kgr 计算为＆thetas; CA50也被称为“PV＆kgr; CA50”。 另外为了方便起见，PV＆kgr之间的区别 （在图3和图4所示的实施例中为零），燃烧开始时的PV＆kgr; CA50也被称为＆Dgr; PV＆kgr; CA50。 产生的总热量Q假定为＆Dgr; PV＆kgr; CA50值的两倍。

公开(公告)号：US08281643B2

公开(公告)日：2012-10-09

申请号：US12677982

申请日：2008-09-11

申请人： Hiromichi Yasuda

发明人： Hiromichi Yasuda

IPC分类号： G01M15/00

CPC分类号： F02D41/0025 ,  F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D19/0689 ,  F02D35/023 ,  F02D35/028 ,  F02D41/123 ,  F02D2200/0612 ,  Y02T10/36

摘要： A minute amount of fuel is injected into a combustion chamber during fuel cut, and a cylinder pressure is detected when the minute amount of fuel is being combusted. Then a combustion ratio is calculated based on the detected cylinder pressure, and a determination crank angle, which is used for determining a cetane number based on the combustion ratio, is determined. The cetane number is determined based on the determination crank angle.

摘要翻译： 在燃料切断期间，将少量燃料喷射到燃烧室中，并且在少量燃料燃烧时检测出气缸压力。 然后，基于检测到的气缸压力计算燃烧比，并且确定用于基于燃烧比来确定十六烷值的确定曲柄角度。 十六烷值是根据确定的曲柄角确定的。

公开(公告)号：US08260531B2

公开(公告)日：2012-09-04

申请号：US13126959

申请日：2009-11-13

申请人： Hiromichi Yasuda

发明人： Hiromichi Yasuda

IPC分类号： G06F19/00 ,  G06G7/70 ,  G01M15/00

CPC分类号： F02D41/222 ,  F02D35/023 ,  G01L27/007 ,  G01M15/08 ,  Y02T10/40

摘要： An object of the present invention is to provide an abnormality detection device for an in-cylinder pressure sensor and an abnormality detection method for an in-cylinder pressure sensor that is able to detect preload loss abnormality of an in-cylinder pressure sensor.An in-cylinder pressure sensor has a strain gauge element to which preload was given. Under an operating state of an internal-combustion engine, it is judged whether Pim/Pex that is a ratio of intake pressure Pim to exhaust gas pressure Pex is 1. Reset of temperature drift is performed when Pim/Pex is 1. If an output voltage which serves as a base of calculation of Pim after the reset of a temperature drift is equal to a circuit limit value, existence of preload loss abnormality is determined.

摘要翻译： 本发明的目的是提供一种用于缸内压力传感器的异常检测装置和能够检测缸内压力传感器的预负荷损失异常的缸内压力传感器的异常检测方法。 缸内压力传感器具有预应力的应变计元件。 在内燃机的运行状态下，判断作为进气压力Pim与排气压力Pex的比值的Pim / Pex是否为Pim / Pex为1时的温度漂移的复位。如果输出 作为温度漂移复位后的Pim的计算基准的电压等于电路限制值，确定预负荷损失异常的存在。

公开(公告)号：US20120053819A1

公开(公告)日：2012-03-01

申请号：US13255647

申请日：2010-03-09

申请人： Hiromichi Yasuda ,  Yusuke Suzuki

发明人： Hiromichi Yasuda ,  Yusuke Suzuki

IPC分类号： F02D28/00

CPC分类号： F02D35/02 ,  F02D35/023 ,  F02D35/024 ,  F02D35/028 ,  F02D41/222 ,  F02D2041/281 ,  Y02T10/40

摘要： Heat generation amount PVκ(θ) is calculated with the use of cylinder pressure P(θ), detected by a cylinder pressure sensor, cylinder, volume V(θ), and specific heat ratio κ (steps 100 to 102). A crank angle θfix, at which the value of PVκ(θ) peaks, is determined as a start crank angle, at which an adiabatic process after combustion starts (step 104). A correction coefficient Kfix is calculated based on the variation of the value of PVκ(θ) after θfix (step 106). An actual heat generation amount PVκ(θ) is calculated with the use of the correction coefficient Kfix (step 110). A cooling loss coefficient Kcool that determines a correlation between the cooling loss and crank angles may be calculated based on a water temperature and an engine speed and the actual heat generation amount PVκfix(θ) may be made to reflect the cooling loss coefficient Kcool.

摘要翻译： 使用气缸压力传感器，气缸，体积V（＆amp; t）和比热比k k来检测发动机的发电量PV＆kgr（（t）），计算出气缸压力P（＆amp; （步骤100〜102）。 确定PV＆kgr（（t））峰值的曲柄角度和角度;确定燃烧开始之后的绝热过程的起始曲柄角（步骤104）。 修正系数Kfix是根据经过修正后的PV＆kgr;（＆thetas;）的值的变化计算的（步骤106）。 使用校正系数Kfix计算实际发热量PV＆kgr（（t））（步骤110）。 可以基于水温和发动机转速来计算确定冷却损失和曲柄角之间的相关性的冷却损失系数Kcool，并且可以使实际发热量PV＆kgr;固定（＆amp; t）来反映冷却损失系数 Kcool。

公开(公告)号：US20110209533A1

公开(公告)日：2011-09-01

申请号：US12677982

申请日：2008-09-11

申请人： Hiromichi Yasuda

发明人： Hiromichi Yasuda

IPC分类号： G01M15/08

CPC分类号： F02D41/0025 ,  F02D19/061 ,  F02D19/0636 ,  F02D19/0649 ,  F02D19/0689 ,  F02D35/023 ,  F02D35/028 ,  F02D41/123 ,  F02D2200/0612 ,  Y02T10/36

摘要： A minute amount of fuel is injected into a combustion chamber during fuel cut, and a cylinder pressure is detected when the minute amount of fuel is being combusted. Then a combustion ratio is calculated based on the detected cylinder pressure, and a determination crank angle, which is used for determining a cetane number based on the combustion ratio, is determined. The cetane number is determined based on the determination crank angle.

摘要翻译： 在燃料切断期间，将少量燃料喷射到燃烧室中，并且在少量燃料燃烧时检测出气缸压力。 然后，基于检测到的气缸压力计算燃烧比，并且确定用于基于燃烧比来确定十六烷值的确定曲柄角度。 十六烷值是根据确定的曲柄角确定的。

公开(公告)号：US20070240518A1

公开(公告)日：2007-10-18

申请号：US11727152

申请日：2007-03-23

申请人： Kentaro Mizuno ,  Shoji Hashimoto ,  Hidenori Moriya ,  Hiromichi Yasuda

发明人： Kentaro Mizuno ,  Shoji Hashimoto ,  Hidenori Moriya ,  Hiromichi Yasuda

IPC分类号： G01L1/00

CPC分类号： G01L1/2281 ,  G01L9/065

摘要： A stress measurement device includes a current supply portion; a series circuit which is connected to the current supply portion and has a piezoresistive element that forms a single gauge resistance and a compensating diode that is connected in series to the piezoresistive element; and a voltage measuring portion that measures voltage between both ends of the series circuit. The single gauge resistance has a piezoresistive effect in which a resistance value changes according to applied stress, and a positive temperature characteristic in which the resistance value increases depending on an increase in temperature. The compensating diode is provided in a forward direction with respect to the current supply portion and has a negative temperature characteristic in which a voltage between an anode and a cathode of the compensating diode decreases depending on the increase in temperature.

摘要翻译： 应力测量装置包括电流供应部分; 串联电路，其连接到电流供应部分，并具有形成单规格电阻的压阻元件和与压阻元件串联连接的补偿二极管; 以及测量串联电路的两端之间的电压的电压测量部。 单规格电阻具有压阻效应，其中电阻值根据施加的应力而变化，并且电阻值随着温度升高而增加的正温度特性。 补偿二极管相对于电流供给部分在正向方向上设置，并且具有负温度特性，其中补偿二极管的阳极和阴极之间的电压根据温度的升高而降低。

公开(公告)号：US20140048038A1

公开(公告)日：2014-02-20

申请号：US13884193

申请日：2011-04-28

申请人： Hiromichi Yasuda

发明人： Hiromichi Yasuda

IPC分类号： F02D45/00

CPC分类号： F02D45/00 ,  F02D35/023 ,  F02D41/222 ,  F02D2200/1004 ,  Y02T10/40

摘要： An object of this invention is to accurately detect a sensitivity abnormality of an in-cylinder pressure sensor over a wide operating range without using other sensor outputs or the like. Based on only the output of an in-cylinder pressure sensor 44, an ECU 50 acquires a first parameter that is affected by an output sensitivity of the sensor, and a second parameter that is not affected by the output sensitivity. Specifically, the ECU 50 acquires a heat release quantity PVκ as the first parameter, and acquires an indicated torque ratio (A2/A1) as a second parameter. The ECU 50 also calculates a determination coefficient α that is a ratio between the first and second parameters, and determines that the output sensitivity of the in-cylinder pressure sensor 44 is abnormal when the determination coefficient α deviates from an allowable range. Thus, even without utilizing another sensor output or the like in an auxiliary manner or previously preparing a large amount of data or the like, a sensitivity abnormality of the in-cylinder pressure sensor 44 can be easily detected over a wide operating range.

摘要翻译： 本发明的目的是在不使用其他传感器输出等的情况下，在宽的工作范围内精确地检测缸内压力传感器的灵敏度异常。 仅基于缸内压力传感器44的输出，ECU50获取受传感器的输出灵敏​​度影响的第一参数和不受输出灵敏度影响的第二参数。 具体而言，ECU50获取作为第一参数的散热量PVkappa，并且获取指定的扭矩比（A2 / A1）作为第二参数。 ECU50还计算作为第一和第二参数之间的比率的确定系数α，并且当确定系数α偏离允许范围时，确定缸内压力传感器44的输出灵敏​​度异常。 因此，即使没有以辅助方式利用另一传感器输出等或者预先准备大量数据等，也能够在宽的工作范围内容易地检测缸内压力传感器44的灵敏度异常。

公开(公告)号：US5320897A

公开(公告)日：1994-06-14

申请号：US17781

申请日：1993-02-16

申请人： Hiromasa Kondo ,  Yoshitaka Okumura ,  Hiromichi Yasuda

发明人： Hiromasa Kondo ,  Yoshitaka Okumura ,  Hiromichi Yasuda

IPC分类号： B41M5/00 ,  B41M5/52 ,  B32B9/00

CPC分类号： B41M5/5218 ,  B41M5/5245 ,  B41M5/5254 ,  Y10S428/913 ,  Y10T428/24893 ,  Y10T428/249953 ,  Y10T428/256 ,  Y10T428/258 ,  Y10T428/259 ,  Y10T428/29

摘要： An ink jet recording paper ensuring high image qualities and a method of producing the same. The paper has excellent ink receptivity, ink dryness, image density, color reproduction and image brightness. The paper is free from the strike through of Ink. The paper does not produce paper dust which affects the performance of the recording apparatus. The paper comprises a substrate and an ink receptive image-receiving layer thereon, the image-receiving layer being formed by coating or saturating the substrate with an aqueous coating composition, the improvement comprising the substrate satisfying the following two conditions at the same time:(1) The substrate contains a porous pigment in an amount of 6 to 20% by weight, the pigment having an apparent specific gravity under JIS-K-6220 of 0.10 to 0.50 g/cm.sup.3.(2) The initial angle of contact .theta. of the surface of the substrate with water is 45.degree. to 100.degree..

摘要翻译： 一种确保高图像质量的喷墨记录纸及其制造方法。 该纸具有优异的油墨接受性，油墨干燥度，图像浓度，色彩还原和图像亮度。 该纸没有墨水的打击。 纸张不会产生影响记录设备性能的纸屑。 该纸包括基板和其上的墨接受图像接收层，图像接收层通过用水性涂料组合物涂布或饱和基板形成，改进包括同时满足以下两个条件的基材：（ 1）基材含有6〜20重量％的多孔颜料，JIS-K-6220的表观比重为0.10〜0.50g / cm 3的颜料。 （2）底物表面与水的初始接触角θ为45°〜100°。

公开(公告)号：US09482177B2

公开(公告)日：2016-11-01

申请号：US13884193

申请日：2011-04-28

申请人： Hiromichi Yasuda

发明人： Hiromichi Yasuda

IPC分类号： F02D45/00 ,  F02D35/02 ,  F02D41/22

CPC分类号： F02D45/00 ,  F02D35/023 ,  F02D41/222 ,  F02D2200/1004 ,  Y02T10/40

摘要： An object of this invention is to accurately detect a sensitivity abnormality of an in-cylinder pressure sensor over a wide operating range without using other sensor outputs or the like. Based on only the output of an in-cylinder pressure sensor 44, an ECU 50 acquires a first parameter that is affected by an output sensitivity of the sensor, and a second parameter that is not affected by the output sensitivity. Specifically, the ECU 50 acquires a heat release quantity PVκ as the first parameter, and acquires an indicated torque ratio (A2/A1) as a second parameter. The ECU 50 also calculates a determination coefficient α that is a ratio between the first and second parameters, and determines that the output sensitivity of the in-cylinder pressure sensor 44 is abnormal when the determination coefficient α deviates from an allowable range. Thus, even without utilizing another sensor output or the like in an auxiliary manner or previously preparing a large amount of data or the like, a sensitivity abnormality of the in-cylinder pressure sensor 44 can be easily detected over a wide operating range.

摘要翻译： 本发明的目的是在不使用其他传感器输出等的情况下，在宽的工作范围内精确地检测缸内压力传感器的灵敏度异常。 仅基于缸内压力传感器44的输出，ECU50获取受传感器的输出灵敏​​度影响的第一参数和不受输出灵敏度影响的第二参数。 具体地说，ECU50获取作为第一参数的放热量PVκ，并获取指定的扭矩比（A2 / A1）作为第二参数。 ECU50还计算作为第一和第二参数之间的比率的确定系数α，并且当确定系数α偏离允许范围时，确定缸内压力传感器44的输出灵敏​​度异常。 因此，即使没有以辅助方式利用另一传感器输出等或者预先准备大量数据等，也能够在宽的工作范围内容易地检测缸内压力传感器44的灵敏度异常。