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    • 92. 发明申请
    • CYLINDER-TO-CYLINDER AIR/FUEL RATIO IMBALANCE DETERMINATION SYSTEM OF INTERNAL COMBUSTION ENGINE
    • 内燃机气缸排气量/燃油比重测定系统
    • US20110054761A1
    • 2011-03-03
    • US12847300
    • 2010-07-30
    • Hiroshi SAWADAYasushi IwazakiHiroshi MiyamotoFumihiko Nakamura
    • Hiroshi SAWADAYasushi IwazakiHiroshi MiyamotoFumihiko Nakamura
    • F02D41/30
    • F02D41/0085F02D41/1441F02D41/1475
    • A cylinder-to-cylinder air/fuel ratio imbalance determination system obtains an imbalance determination parameter that increases or decreases as a difference between the air/fuel ratios of different cylinders increases, based on output values of an air/fuel ratio sensor, and makes a cylinder-to-cylinder A/F imbalance determination, based on the result of comparison between the imbalance determination parameter and a threshold value for imbalance determination. The determination system changes the amount of fuel injected into one or more of the cylinders so as to create a forced imbalance condition in which the air/fuel ratio of a particular cylinder deviates from the air/fuel ratio of the remaining cylinders, and obtains an air/fuel ratio sensor evaluation parameter (e.g., rate of change ΔAF of the detected air/fuel ratio) in this condition. Then, the determination system determines whether the air/fuel ratio sensor is adequate for making a cylinder-to-cylinder A/F imbalance determination, by comparing the evaluation parameter with a reference parameter (an evaluation parameter obtained based on output values of a reference air/fuel ratio sensor in the same forced imbalance condition).
    • 基于空/燃比传感器的输出值,气缸对气缸空气/燃料比不平衡确定系统获得不同气缸的空气/燃料比之间的差异增大或减小的不平衡确定参数,并且 基于不平衡确定参数和不平衡确定的阈值之间的比较结果,确定缸到缸的A / F不平衡。 确定系统改变喷射到一个或多个气缸中的燃料量,以产生特定气缸的空气/燃料比偏离剩余气缸的空气/燃料比的强制不平衡状态,并获得 在这种情况下,空气/燃料比传感器评估参数(例如,检测到的空气/燃料比的变化率和Dgr; AF)。 然后,判定系统通过将评价参数与参考参数(基于参考的输出值获得的评估参数)进行比较来判定空气/燃料比传感器是否足以进行气缸到气缸A / F不平衡的确定 空气/燃料比传感器处于相同的强制不平衡状态)。
    • 94. 发明授权
    • Ultrasonic test method and ultrasonic test instrument used for the method
    • 超声波检测方法和超声波检测仪用于该方法
    • US07721606B2
    • 2010-05-25
    • US11667772
    • 2005-11-11
    • Makoto ShiraiHiroshi MiyamotoShigeyuki Matsubara
    • Makoto ShiraiHiroshi MiyamotoShigeyuki Matsubara
    • G01N9/24
    • G01N29/043G01N29/07G01N29/223G01N29/32G01N29/38G01N2291/0231G01N2291/0427G01N2291/044G01N2291/056G01N2291/102G01N2291/2694
    • An ultrasonic test method for detecting a defective portion more precisely in a noncontact reflection way, and ultrasonic test instrument used for the method. An ultrasonic wave is transmitted from a transmitter (20 (21)) provided on one side of an object under test, and the reflected wave is received by a receiver (30 (31)) provided on the same side. The ultrasonic wave is transmitted/received through an air layer between the transmitter and the object (100) under test and between the receiver and the object (100). The relative positions of the transmitter (20), the receiver (30), and the object (100) are so determined that the air propagation time ta of the air path (RA) between the transmitter and the receiver is longer than the propagation time tb of the reflected wave in the reflection path (RB). The propagation of the ultrasonic wave through the solid body between the transmitter and the receiver is blocked. This invention is suitable to test laminated material (100) such as a laminate of CFRP (101) and insulation (102) in a noncontact way.
    • 一种用于以非接触反射方式更准确地检测缺陷部分的超声波测试方法,以及用于该方法的超声波测试仪器。 从设置在被测物体的一侧的发送器(20(21))发送超声波,反射波由设置在同一侧的接收器(30(31))接收。 超声波通过发射机与待测物体(100)之间的空气层和接收器与物体(100)之间的空气层进行传送/接收。 如此确定发射器(20),接收器(30)和物体(100)的相对位置,使得发射器和接收器之间的空气路径(RA)的空气传播时间ta比传播时间长 反射波(RB)中的反射波的tb。 超声波在发射机和接收机之间通过固体的传播被阻断。 本发明适合以非接触方式测试诸如CFRP(101)和绝缘体(102)的层压材料的层压材料(100)。
    • 95. 发明申请
    • ENGINE CONTROL APPARATUS
    • 发动机控制装置
    • US20090125212A1
    • 2009-05-14
    • US12268335
    • 2008-11-10
    • Yoshikuni KURASHIMAToshio HoriHiroshi Miyamoto
    • Yoshikuni KURASHIMAToshio HoriHiroshi Miyamoto
    • F02D41/00
    • F02D41/0002F02D37/02F02D41/0255F02D41/062F02D41/18F02D41/3029F02D41/3064F02D41/3836F02D41/402F02D41/405F02D2200/0402F02D2200/0404F02D2250/41Y02T10/42Y02T10/44
    • An object of the present invention is to provide an engine control apparatus that can perform combustion pattern changeover at a time point where fuel injection can be performed plural times in an engine operating state where fuel injection is performed plural times in each combustion.Each cylinder of the engine having an injector 112 performs fuel injection from the injector a predetermined number of times for each cylinder combustion. The control unit 200 controls fuel injection from the injector and the ignition timing from a spark plug. The control unit 200, upon combustion mode changeover from the first combustion mode in which fuel injection is performed at least once for each cylinder combustion to the second combustion mode in which fuel injection is performed a greater number of times with a larger intake air volume than the first combustion mode, performs the steps of changing in the first combustion mode a target intake air volume required in the second combustion mode; retarding the ignition timing; changing the second combustion mode; and further retarding the ignition timing.
    • 本发明的目的是提供一种发动机控制装置,其能够在每次燃烧中进行多次燃料喷射的发动机运转状态的多次燃料喷射的时间点进行燃烧模式切换。 具有喷射器112的发动机的每个气缸对于每个气缸燃烧,对喷射器执行预定次数的燃料喷射。 控制单元200控制来自喷射器的燃料喷射和来自火花塞的点火正时。 控制单元200在从燃烧模式切换到第一燃烧模式时,其中对于每个气缸燃烧进行至少一次的燃料喷射到进行燃料喷射的第二燃烧模式,具有较大的进气量的更多次数 第一燃烧模式执行在第一燃烧模式中改变在第二燃烧模式中所需的目标进气量的步骤; 延迟点火正时; 改变第二种燃烧模式; 并进一步延迟点火正时。