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    • 83. 发明申请
    • Control for determining a firing timing of an internal-combustion engine
    • 用于确定内燃机的点火正时的控制
    • US20090055074A1
    • 2009-02-26
    • US12222782
    • 2008-08-15
    • Tetsuya IshiguroShusuke AkazakiYuji Yamamoto
    • Tetsuya IshiguroShusuke AkazakiYuji Yamamoto
    • F02D45/00
    • F02D35/024F02D35/023F02D35/028F02D41/2416F02D41/34F02P5/00F02P7/06
    • A control for determining a firing timing of an engine is provided. An in-cylinder pressure is detected at a predetermined time interval. An in-cylinder pressure for every predetermined crank angle is calculated based on the detected in-cylinder pressure. A motoring pressure in a case where combustion is not performed in the engine is estimated. It is detected that a pressure difference between the calculated in-cylinder pressure and the motoring pressure has exceeded a determination value. A time point is identified, as a firing timing, at which the pressure difference has exceeded a determination value with a finer resolution than the resolution of the predetermined crank angle interval through an interpolation calculation. The interpolation calculation uses a first crank angle when it is detected that the pressure difference has exceeded the determination value, the pressure difference corresponding to the first crank angle, a second crank angle previous to the first crank angle by the predetermined crank angle and a pressure difference corresponding to the second crank angle.
    • 提供了一种用于确定发动机的点火正时的控制。 以预定的时间间隔检测缸内压力。 基于检测到的缸内压力计算每个预定曲柄角的缸内压力。 估计在发动机不进行燃烧的情况下的驾驶压力。 检测出计算出的缸内压力和驾驶压力之间的压力差超过了确定值。 通过内插计算,将时间点识别为具有比通过预定的曲柄角间隔的分辨率更精细的分辨率的压力差超过确定值的点火时刻。 当检测到压力差已经超过确定值,对应于第一曲柄角的压力差,第一曲柄角之前的预定曲柄角的第二曲柄角和压力时,插值计算使用第一曲柄角 差异对应于第二曲柄角度。
    • 86. 发明申请
    • Ignition timing control apparatus and method for internal combustion engine, and engine control unit
    • 点火正时控制装置和内燃机方法及发动机控制装置
    • US20070277780A1
    • 2007-12-06
    • US11806447
    • 2007-05-31
    • Shusuke AkazakiMitsuo HashizumeTakahide MizunoYuji Yamamoto
    • Shusuke AkazakiMitsuo HashizumeTakahide MizunoYuji Yamamoto
    • F02P5/00G06F19/00
    • F02P5/1522F02D35/023F02D35/027F02D35/028F02P5/153G01L23/221Y02T10/46
    • An ignition timing control apparatus and method for an internal combustion engine, and an engine control unit are provided for more rapidly and effectively restraining knocking as the entire internal combustion engine, and extending the lifetime of the internal combustion engine. The ignition timing control apparatus comprising an ECU. The ECU determines a basic ignition timing on a cylinder-by-cylinder basis, calculates a knock intensity on a cylinder-by-cylinder bases based on a detected signal of a cylinder inner pressure sensor, and updates a correction coefficient learning value for a corresponding cylinder when the knock intensity is larger than a predetermined first determination value and is smaller than a predetermined second determination value larger than the predetermined first determination value, and updates the knock intensities for all the cylinders when the one knock intensity parameter is equal to or larger than the predetermined second determination value. Then, the ECU calculates a knock correction term on a cylinder-by-cylinder basis in accordance with the correction coefficient learning value, and corrects the basic ignition timing with the knock correction term, thereby determining an ignition timing on a cylinder-by-cylinder basis.
    • 提供一种用于内燃机和发动机控制单元的点火正时控制装置和方法,用于更快速有效地限制作为整个内燃机的爆震,并延长内燃机的使用寿命。 点火正时控制装置包括ECU。 ECU根据汽缸内压传感器的检测信号,确定基于缸缸的基本点火正时,并根据汽缸内压传感器的检测信号,计算出汽缸底座上的爆震强度,并更新相应的校正系数学习值 当所述爆震强度大于预定的第一确定值并且小于大于所述预定的第一确定值的预定的第二确定值时,当所述一个爆震强度参数等于或更大时,更新所有气缸的爆震强度 比预定的第二确定值。 然后,ECU根据校正系数学习值,逐缸地计算敲击校正项,并用敲击校正项校正基本点火正时,由此确定圆柱滚子上的点火正时 基础。
    • 90. 发明申请
    • Multichannel optical path changing device and its production method
    • 多通道光路改变装置及其制作方法
    • US20070140636A1
    • 2007-06-21
    • US10575564
    • 2004-10-13
    • Toru TanakaHidehisa NanaiYuji YamamotoMotoyasu NishimuraShigeki Sakaguchi
    • Toru TanakaHidehisa NanaiYuji YamamotoMotoyasu NishimuraShigeki Sakaguchi
    • G02B6/10
    • G02B6/122G02B6/12002G02B6/125G02B2006/12176
    • The present invention relates to a multichannel optical path changing device that is constituted of resin optical waveguides and mirrors and that changes a direction of an optical path. This device has monolithically formed cores having a mirror therebetween and optical path directions changed, and has multichannel cores simultaneously formed under a condition that their positional relationship is maintained. This device can be produced by a first or second method. The first method comprises steps of forming a parallelepiped block on a substrate by a cladding resin; forming a film of a core layer to cover the block by a core resin; and simultaneously forming cores having an optical path direction rectangularly changed, by selectively etching the core layer and the block. The second method comprises steps of forming a film of a core layer on a substrate by a resin; and simultaneously forming a plurality of cores having an optical path rectangularly changed, by selectively etching the core layer, under a condition that their positional relationship is maintained.
    • 本发明涉及由树脂光波导和反射镜构成并改变光路方向的多通道光路改变装置。 该装置具有在其间具有反射镜并且光路方向改变的单片成形芯,并且在保持它们的位置关系的条件下同时形成多通道芯。 该装置可以通过第一种或第二种方法制造。 第一种方法包括通过包覆树脂在基底上形成平行六面体块的步骤; 通过芯树脂形成芯层的膜以覆盖块; 并且通过选择性地蚀刻芯层和块,同时形成光路方向的矩形变化的芯。 第二种方法包括通过树脂在基底上形成芯层的膜的步骤; 并且通过在保持其位置关系的条件下选择性地蚀刻芯层,同时形成具有矩形变化的光路的多个芯。