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    CONTROL DEVICE FOR COMMON RAIL FUEL INJECTION DEVICE
    2.
    发明授权
    CONTROL DEVICE FOR COMMON RAIL FUEL INJECTION DEVICE 有权

    公开(公告)号：EP3015700B1

    公开(公告)日：2018-08-01

    申请号：EP14818438.5

    申请日：2014-05-29

    申请人： Isuzu Motors, Ltd.

    发明人： NAGASAKI Takahiro ,  NARITA Kazuyoshi ,  SUZUKI Kenta

    IPC分类号： F02M37/00 ,  F02D41/20 ,  F02D41/38 ,  F02M59/36 ,  F02M63/02

    CPC分类号： F02M63/0285 ,  F02D41/266 ,  F02D41/3845 ,  F02D41/3863 ,  F02M51/061 ,  F02M59/366 ,  F02M63/0225

    摘要： The invention pertains to a control device for a common rail fuel injection device that avoids simultaneous driving of a pressurized fuel feed pump and a pressure reducing valve and enables proper regulations to a common rail pressure. The common rail fuel injection device includes a first flow rate regulating valve and a second flow rate regulating valve (12E, F) for regulating a delivery volume of the pressurized fuel feed pump (12) that feeds pressurized fuel to a common rail (13), and also includes the pressure reducing valve (18) for reducing the common rail pressure. The control device includes a first drive controlling unit (21) that controls an electromagnetic driving unit (32) for the second flow rate regulating valve (12F) and an electromagnetic driving unit (33) for the pressure reducing valve (18), and a second drive controlling unit (22) that controls an electromagnetic driving unit (31) for the first flow rate regulating valve (12E). The first drive controlling unit (21) prohibits a drive instruction from being sent to the second flow rate regulating valve (12F) when the first drive controlling unit sends a drive instruction to the pressure reducing valve (18).

    METHOD AND DEVICE FOR OPERATION OF A HIGH PRESSURE FUEL PUMP
    3.
    发明授权
    METHOD AND DEVICE FOR OPERATION OF A HIGH PRESSURE FUEL PUMP 有权

    公开(公告)号：EP2999879B1

    公开(公告)日：2018-07-04

    申请号：EP14800790.9

    申请日：2014-05-22

    申请人： Scania CV AB

    发明人： KYLSTRÖM, Kim

    IPC分类号： F02M63/02 ,  F02D41/22

    CPC分类号： F02M63/027 ,  F02D41/08 ,  F02D41/221 ,  F02D41/3845 ,  F02D2041/224 ,  F02D2250/31 ,  F02M59/022 ,  F02M59/04 ,  F02M59/08 ,  F02M59/366 ,  F02M63/0225 ,  Y02T10/40

    摘要： In a high pressure pump in a system for fuel injection in a combustion engine, determining whether a predetermined partial load operating condition prevails in the combustion engine, at which one single of several pump elements (10) in the high pressure pump is capable of alone delivering a fuel pressure requested in an accumulator tank (6), according to a first reference value, and to achieve a reproducible increase of the fuel pressure to a second reference value. If applicable, the high pressure pump's pump elements are controlled so that one single pump element alone delivers the fuel pressure in the accumulator tank according to the first reference value, whereupon this reference value is changed to the second reference value, and the actual development of the pressure in the accumulator tank as a function of time is determined, and compared with stored values of similar developments for the determination of information regarding the pump element's performance ability.

    Method and apparatus to reduce engine noise in a direct injection engine
    5.
    发明公开
    Method and apparatus to reduce engine noise in a direct injection engine 审中-公开
    降低直喷式发动机噪音的方法和装置

    公开(公告)号：EP2503132A3

    公开(公告)日：2018-03-21

    申请号：EP12160919.2

    申请日：2012-03-23

    申请人： Hitachi, Ltd.

    发明人： Tanabe, Yosuke ,  McCune, Donald J.

    IPC分类号： F02D41/38

    CPC分类号： F02M59/20 ,  F02D41/0097 ,  F02D41/3845 ,  F02D2200/101 ,  F02M59/366

    摘要： A method to reduce engine noise in a multi-cylinder direct injection internal combustion engine 22. The internal combustion engine includes a high pressure fuel pump 24 having both an inlet valve 30 fluidly connected to a fuel source and an outlet valve 36 typically connected to a pressurized fuel rail 34. In order to reduce engine noise, especially at low engine speeds, the timing of the opening of either the fuel pump inlet valve 30 or fuel pump outlet valve 36 is varied so that it coincides with the opening of the fuel injectors 38.

    摘要翻译： 一种减少多缸直喷式内燃机22中的发动机噪音的方法。内燃机包括高压燃料泵24，该高压燃料泵24具有流体地连接到燃料源的入口阀30和通常连接到燃料源的出口阀36 为了降低发动机噪音，特别是在低发动机转速下，燃料泵入口阀30或燃料泵出口阀36的打开正时是变化的，从而它与燃料喷射器的打开一致 38。

    FUEL SUPPLY DEVICE FOR AN INTERNAL COMBUSTION ENGINE, AND FUEL SUPPLY CONTROL METHOD
    7.
    发明公开
    FUEL SUPPLY DEVICE FOR AN INTERNAL COMBUSTION ENGINE, AND FUEL SUPPLY CONTROL METHOD 审中-公开

    公开(公告)号：EP2518303A4

    公开(公告)日：2018-01-10

    申请号：EP10839185

    申请日：2010-12-08

    申请人： NISSAN MOTOR

    发明人： AOKI YOZABURO ,  TAKAHASHI TOMOHIKO ,  KATAYAMA TAKATSUGU

    IPC分类号： F02M55/02 ,  F02D41/22 ,  F02D41/38 ,  F02M59/36 ,  F02M63/00 ,  F02M63/02

    CPC分类号： F02M63/0205 ,  F02D41/222 ,  F02D41/3845 ,  F02D2041/223 ,  F02D2200/0602 ,  F02M63/0245

    摘要： A fuel supply device includes a low-pressure fuel pump (8) for sucking fuel from a fuel tank (1), a high-pressure fuel pump (2) for pressurizing the sucked fuel, an accumulator (3) for accumulating the pressurized fuel, fuel injection valves (4) for directly injecting the fuel in the accumulator (3) into cylinders, a relief valve (17) for restricting an upper limit value of a fuel pressure in the accumulator (3), a high-pressure fuel pressure sensor (6) for detecting the fuel pressure in the accumulator (3), and a control unit (7) for setting a target fuel injection pressure, controlling the high-pressure fuel pump (2) so that the fuel pressure in the accumulator (3) reaches the target fuel injection pressure, and regarding the present target fuel injection pressure as a detection value of the high-pressure fuel pressure sensor (6) and setting the high-pressure fuel pump (2) in an operational state with a maximum discharge amount or a non-operational state when detecting an abnormality of the high-pressure fuel pressure sensor (6). This enables the fuel to be injected with an appropriate injection pulse width corresponding to an actual fuel pressure even if the high-pressure fuel pressure sensor (6) cannot detected the fuel pressure in the accumulator (3) due to disconnection or the like.

    CONTROLLER FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE
    8.
    发明公开
    CONTROLLER FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机控制器和控制内燃机的方法

    公开(公告)号：EP3252290A1

    公开(公告)日：2017-12-06

    申请号：EP17172866.0

    申请日：2017-05-24

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： NAKANO, Tomohiro

    IPC分类号： F02D41/20 ,  F02D41/38

    CPC分类号： F02D41/3863 ,  F02D41/20 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2041/2048 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/0604

    摘要： A controller (60) for an internal combustion engine (10) including a fuel pressure control processor that controls a fuel pressure at a target fuel pressure, an instruction value calculating processor that calculates a peak instruction value, an upper limit guard processor that executes a guard process on the peak instruction value, an energizing processor that energizes the coil based on the peak instruction value that has undergone the guard process, a convergence determination processor that determines whether or not the detected fuel pressure has converged on the target fuel pressure, and a decreasing processor that decreases the upper limit guard value to a lower value when the fuel pressure has converged on the target fuel pressure than when the fuel pressure has not converged on the target fuel pressure.

    摘要翻译： 1。一种内燃机（10）的控制装置（60），其特征在于，具备：将燃料压力控制为目标燃料压力的燃料压力控制处理部，计算峰值指令值的指令值计算处理部，执行 对峰值指令值进行保护处理;基于经过保护处理的峰值指令值对线圈通电的通电处理部;判定检测出的燃料压力是否收敛于目标燃料压力的收敛判定处理部; 减少处理器，其在燃料压力已经收敛于目标燃料压力时比燃料压力尚未收敛于目标燃料压力时将上限保护值减小至较低值。

    ETHOD FOR DETERMINING THE BULK MODULUS OF FUELS
    10.
    发明公开
    ETHOD FOR DETERMINING THE BULK MODULUS OF FUELS 审中-公开
    VERFAHREN ZUR BESTIMMUNG DES KOMPRESSIONSMODULS VON BRENNSTOFFEN

    公开(公告)号：EP3066323A4

    公开(公告)日：2017-07-12

    申请号：EP14860465

    申请日：2014-11-03

    申请人： SCANIA CV AB

    发明人： KYLSTRÖM KIM ,  HÄLLEBERG ROGER

    IPC分类号： F02D19/06 ,  F02D19/08 ,  G01N3/10 ,  G01N33/22 ,  G01N33/26 ,  G01N33/28

    CPC分类号： G01N33/2817 ,  F02D19/0628 ,  F02D19/087 ,  F02D41/3845 ,  G01N7/00 ,  G01N33/28 ,  Y02T10/36

    摘要： A method for determination of the bulk modulus of fuels in a fuel system of a combustion engine (2) with a common rail injection system (6), with a high pressure volume (16) including the high pressure side of a high pressure pump (9) and a fuel accumulator (8) with injectors (7) for injection of fuel into the cylinders of the combustion engine. The method including: first determining the volume of the high pressure volume by supplying a fuel with a known bulk modulus to the fuel system and by controlling the high pressure pump (9) so that it performs a pump stroke with the volume of the high pressure volume closed. The value of the determined volume is later used with another fuel in order to determine the latter fuel's bulk modulus.

    摘要翻译： 一种用于利用共轨喷射系统（6）确定内燃机（2）的燃料系统中的燃料的体积模量的方法，所述共轨喷射系统具有包括高压泵的高压侧的高压容积（16） 9）和具有喷射器（7）的燃料储存器（8），用于将燃料喷射到内燃机的气缸中。 该方法包括：首先通过向燃料系统供应具有已知体积模量的燃料来确定高压容积的容积，并且通过控制高压泵（9）使得其执行具有高压容积的泵冲程 音量关闭。 确定的体积值随后与另一种燃料一起使用，以确定后一种燃料的体积模量。