UNIFLOW SCAVENGING TWO-CYCLE ENGINE
    61.
    发明公开
    UNIFLOW SCAVENGING TWO-CYCLE ENGINE 有权
    ZWEITAKTMOTOR MIT UNIDIREKTIONALERSPÜLUNG

    公开(公告)号:EP2891790A1

    公开(公告)日:2015-07-08

    申请号:EP13833096.4

    申请日:2013-08-29

    申请人: IHI Corporation

    摘要: A uniflow-scavenging-type two-cycle engine (100) includes: a cylinder (110); a piston (112) that slides in the cylinder; an exhaust port (116) that is provided at a first end of the cylinder; an exhaust valve (120) that opens and closes the exhaust port; a scavenging port (122) that is provided in an inner circumferential surface of a second end of the cylinder in the stroke direction of the piston and inhales an active gas into a combustion chamber (140) in accordance with a sliding movement of the piston; a plurality of fuel injection valves (128) that inject a fuel gas to the active gas, which has been drawn in from the scavenging port to the combustion chamber, to thereby generate a premixed gas; and a fuel injection control unit (152) that varies injection directions of fuel gas injected from a part or all of the fuel injection valves (128).

    摘要翻译: 单清扫型双冲程发动机(100)包括:气缸(110); 活塞(112),其在所述气缸中滑动; 设置在所述气缸的第一端的排气口(116) 排气门,其开闭所述排气口; 清除口122设置在所述活塞的行程方向上的所述气缸的第二端的内周面中,并根据所述活塞的滑动运动将活性气体吸入燃烧室; 多个燃料喷射阀(128),其向从所述扫气口向所述燃烧室吸入的活性气体喷射燃料气体,从而产生预混合气体; 以及燃料喷射控制单元(152),其改变从部分或全部燃料喷射阀(128)喷射的燃料气体的喷射方向。

    FEEDBACK CONTROL SYSTEM
    63.
    发明公开
    FEEDBACK CONTROL SYSTEM 有权
    反馈REGELUNGSSYSTEM

    公开(公告)号:EP2784610A1

    公开(公告)日:2014-10-01

    申请号:EP11876283.0

    申请日:2011-11-22

    发明人: AOYAGI, Shinsuke

    IPC分类号: G05B11/42

    摘要: An object of the invention is to provide a feedback control system that calculates a P term and an I term on the basis of a deviation between a target value and a measured value of a control amount, and calculates a correction amount to be applied to an operation amount of a control subject on the basis of a PI term, which is a sum of the P term and the I term, wherein divergence of the I term in a condition where the PI term is restricted by a guard is prevented while improving a convergence property of the I term following removal of the restriction applied to the PI term by the guard. For this purpose, the feedback control system calculates, as a corrected previous value of the I term, a value obtained by subtracting a difference between a value of the PI term prior to restriction by the guard and a value of the PI term following restriction by the guard, from a value of the I term, and then updates the value of the I term by adding an update amount calculated from the deviation between the target value and the measured value of the control amount to the corrected previous value of the I term.

    摘要翻译: 本发明的目的是提供一种反馈控制系统,其基于目标值与控制量的测量值之间的偏差来计算P项和I项,并且计算应用于 基于作为P项和I项的总和的PI项的控制对象的操作量,其中,在改善了所述PI项的同时,防止了PI项受到护罩限制的条件下的I项的发散 在取消了护卫员对PI条款的限制后,I术语的收敛性。 为此,反馈控制系统作为I项的校正的先前值计算通过减去由保护者限制之前的PI项的值与PI限制之后的限制之间的差值而获得的值 保护人员,从I条款的值,然后通过将从目标值与控制量的测量值之间的偏差计算的更新量相加到I项的修正后的值,来更新I项的值 。

    INTERNAL COMBUSTION ENGINE CONTROL DEVICE
    64.
    发明公开
    INTERNAL COMBUSTION ENGINE CONTROL DEVICE 有权
    内燃机控制装置

    公开(公告)号:EP2781726A1

    公开(公告)日:2014-09-24

    申请号:EP12849628.8

    申请日:2012-10-23

    摘要: Provided is a control unit (1) for an internal combustion engine (10) including a direct injector (11) directly injecting fuel into a cylinder (20) and a port injector (12) injecting fuel into an intake port (17). The control unit (1) includes an injection volume calculator (5) to calculate a volume of the fuel injected from the direct injector (11), a port injection controller (2) to control a volume of the fuel injected from the port injector (12), an overlap period controller (4) to control an overlap period during which both an intake valve (27) and an exhaust valve (28) are open, and a changer (6) to vary both the volume of the port injection from the port injector (12) and the overlap period based on the volume of the direct injection.

    摘要翻译: 提供了一种用于内燃机(10)的控制单元(1),该内燃机包括直接喷射燃料到气缸(20)中的直接喷射器(11)和将燃料喷射到进气口(17)中的进气口喷射器(12)。 控制单元(1)包括用于计算从直接喷射器(11)喷射的燃料的体积的喷射量计算器(5),用于控制从端口喷射器(11)喷射的燃料的体积的端口喷射控制器(2) 12);重叠时间控制器(4),用于控制进气门(27)和排气门(28)两者打开的重叠时间段;以及变换器(6),用于将进气口喷射量 端口喷射器(12)和基于直接喷射的体积的重叠周期。

    DEVICE FOR CONTROLLING FUEL INJECTION AMOUNT IN INTERNAL COMBUSTION ENGINE
    68.
    发明授权
    DEVICE FOR CONTROLLING FUEL INJECTION AMOUNT IN INTERNAL COMBUSTION ENGINE 有权
    一种用于控制喷油量在内燃机

    公开(公告)号:EP2249014B1

    公开(公告)日:2012-04-25

    申请号:EP09714280.6

    申请日:2009-02-25

    摘要: The amount of fuel injection is determined with higher accuracy. In an internal combustion engine provided with a variable valve mechanism capable of changing the amount of lift of an intake valve, a controlling device for controlling the amount of fuel injection has a means for detecting an actual lift amount (ALIFT) of the intake valve and feedback-controls the actual lift amount on a predetermined control cycle so that the actual lift amount converges to a target lift amount (ALCMD) at a predetermined time constant (τp). The controller calculates an estimated value (HALIFT) of the amount of lift in a subsequent control cycle by adding a value obtained by multiplying a difference between the target lift amount and the actual lift amount by a predetermined gain (C) to the actual lift amount. Then, the controlling device calculates, based on the estimated value of the amount of lift, the amount of fuel to be injected in the subsequent control cycle, where the gain is calculated based on the length of the control cycle and on the time constant above.

    Fuel supply apparatus for internal combustion engine
    69.
    发明公开
    Fuel supply apparatus for internal combustion engine 有权
    一种用于内燃发动机的燃料供给装置

    公开(公告)号:EP2392807A3

    公开(公告)日:2011-12-28

    申请号:EP11164612.1

    申请日:2011-05-03

    IPC分类号: F02D41/30 F02D41/34

    摘要: A fuel supply apparatus for an internal combustion engine having a plurality of cylinders, which supplies fuel through fuel injection valves provided corresponding to the plurality of cylinders. An amount of fuel supplied to the engine is controlled by changing a fuel injection period of said fuel injection valve, and performing a fuel injection with a plurality of injection modes including a reference injection mode in which the fuel injection periods corresponding to the plurality of cylinders do not overlap with each other. A fuel injection amount parameter for controlling a valve opening period of the fuel injection valve in the reference injection mode, is calculated according to an operating condition of said engine. When the injection mode is determined to be another injection mode in which the fuel injection periods corresponding to a part or all of the plurality of cylinders overlap with each other, the fuel injection amount parameter is corrected so as to compensate shortage or oversupply of the fuel injection amount according to a correction parameter indicative of a time period which affects a pressure change of the fuel supplied to the fuel injection valve caused by employing the other injection mode.