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公开(公告)号：US08899210B2
公开(公告)日：2014-12-02
申请号：US13512406
申请日：2010-08-16
CPC分类号： F02D41/20 , F02D41/402 , F02D2041/2003
摘要： A drive circuit for driving an electromagnetic fuel-injection valve, the drive circuit varying an application sequence of a drive voltage, which is supplied from a step-up power supply to a fuel-injection valve for conducting injection multiple times in a single stroke of an internal-combustion engine, between the first injection and the second and subsequent injections, and setting the application sequence such that the consumption of power from the step-up power supply in the first injection becomes smaller than the power consumption in one of the second and subsequent injections.
摘要翻译： 一种用于驱动电磁燃料喷射阀的驱动电路，驱动电路将从升压电源提供的驱动电压的施加顺序改变为在单次行程中多次进行喷射的燃料喷射阀 内燃机，在所述第一喷射与所述第二喷射和所述第二喷射之间进行，并且设定所述应用顺序，使得所述第一喷射中的来自所述升压电源的功率的消耗变得小于所述第二喷射 和随后的注射。
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公开(公告)号：US20120234299A1
公开(公告)日：2012-09-20
申请号：US13512406
申请日：2010-08-16
IPC分类号： F02M51/06
CPC分类号： F02D41/20 , F02D41/402 , F02D2041/2003
摘要： A drive circuit for driving an electromagnetic fuel-injection valve, the drive circuit varying an application sequence of a drive voltage, which is supplied from a step-up power supply to a fuel-injection valve for conducting injection multiple times in a single stroke of an internal-combustion engine, between the first injection and the second and subsequent injections, and setting the application sequence such that the consumption of power from the step-up power supply in the first injection becomes smaller than the power consumption in one of the second and subsequent injections.
摘要翻译： 一种用于驱动电磁燃料喷射阀的驱动电路，驱动电路将从升压电源提供的驱动电压的施加顺序改变为在单次行程中多次进行喷射的燃料喷射阀 内燃机，在所述第一喷射与所述第二喷射和所述第二喷射之间进行，并且设定所述应用顺序，使得所述第一喷射中的来自所述升压电源的功率的消耗变得小于所述第二喷射 和随后的注射。
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公开(公告)号：US09593657B2
公开(公告)日：2017-03-14
申请号：US13817069
申请日：2011-08-08
申请人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Takuya Mayuzumi , Kenji Hiraku
发明人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Takuya Mayuzumi , Kenji Hiraku
CPC分类号： F02D41/20 , F02D41/3005 , F02D2041/2003 , F02D2041/2013 , F02D2041/2037 , F02D2041/2051 , F02M51/061 , F02M69/04
摘要： In a drive unit of a fuel injection device, an electric current is supplied to the fuel injection device by applying a high voltage to the fuel injection device from a high voltage source whose voltage is boosted to a voltage higher than a battery voltage at the time of opening a valve of the fuel injection device. Thereafter, the electric current supplied to the fuel injection device is lowered to a current value at which a valve element cannot be held in a valve open state by stopping the applying of the high voltage from the high voltage source. Thereafter, in a stage where a supply current is switched to a hold current, another high voltage is applied to the fuel injection device from the high voltage source.
摘要翻译： 在燃料喷射装置的驱动单元中，通过从电压升高到高于当时电池电压的电压的高电压源向燃料喷射装置施加高电压，向燃料喷射装置供给电流 打开燃料喷射装置的阀。 此后，通过停止从高电压源施加高电压，供给燃料喷射装置的电流降低到阀元件不能保持在开阀状态的电流值。 此后，在将电源电流切换为保持电流的阶段中，从高电压源向燃料喷射装置施加另一高电压。
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公开(公告)号：US09347393B2
公开(公告)日：2016-05-24
申请号：US13526734
申请日：2012-06-19
申请人： Ryo Kusakabe , Motoyuki Abe , Yoshihito Yasukawa , Noriyuki Maekawa , Takuya Mayuzumi , Tohru Ishikawa
发明人： Ryo Kusakabe , Motoyuki Abe , Yoshihito Yasukawa , Noriyuki Maekawa , Takuya Mayuzumi , Tohru Ishikawa
CPC分类号： F02M51/0653 , F02D41/20 , F02D2041/2013 , F02D2041/2055 , F02D2041/2058 , F02D2200/0618 , F02M45/12 , F02M51/0671 , F02M51/0685 , F02M59/366 , F02M61/1833 , F02M63/0033
摘要： A method of controlling a fuel injection device that can control a small amount of injection is provided. A fuel injection device for use in an internal combustion engine, includes: a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle, and a cylindrical nozzle holder disposed on an outer periphery of the magnetic core and the needle, in which a current is supplied to the coil to exert a magnetic attractive force between the magnetic core and the needle to open the valve body.
摘要翻译： 提供了一种控制能够控制少量喷射的燃料喷射装置的方法。 一种用于内燃机的燃料喷射装置，包括：能够打开和关闭燃料通道的阀体，与阀体传递力并执行阀打开/关闭操作的针，以及电磁体，其包括 设置为用于驱动针的驱动器的线圈和磁芯，以及设置在磁芯和针的外周上的圆柱形喷嘴保持架，其中电流被供应到线圈以在第一和第二磁芯之间施加磁力吸引力 磁芯和针头打开阀体。
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公开(公告)号：US08960157B2
公开(公告)日：2015-02-24
申请号：US13403506
申请日：2012-02-23
申请人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Noriyuki Maekawa , Takuya Mayuzumi
发明人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Noriyuki Maekawa , Takuya Mayuzumi
CPC分类号： F02D41/20 , F02D41/402 , F02D2041/2037
摘要： The drive device is configured to, during a time interval between an earlier fuel injection (first fuel injection) and a later fuel injection (second fuel injection), supply an electromagnetic coil with an intermediate current at a voltage with a level of not opening the valve. Further, the drive device sets a voltage application for supplying the intermediate current to initiate before a valve closing in the earlier fuel injection and terminate before half a period of time between a first instant when the valve is closed in the earlier fuel injection and a second instant when a supply of a drive current for opening the valve is initiated in the later fuel injection.
摘要翻译： 驱动装置被构造成在较早的燃料喷射（第一燃料喷射）和稍后的燃料喷射（第二燃料喷射）之间的时间间隔期间以不打开等级的电压向中间电流供应电磁线圈 阀。 此外，驱动装置设定用于提供中间电流的电压施加，以在较早的燃料喷射中的阀关闭之前启动，并且在较早的燃料喷射中的阀关闭的第一瞬间和第二时间之间的半个时间段之前终止 在稍后的燃料喷射中启动用于打开阀的驱动电流的供应的瞬间。
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公开(公告)号：US20130139791A1
公开(公告)日：2013-06-06
申请号：US13817069
申请日：2011-08-08
申请人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Takuya Mayuzumi , Kenji Hiraku
发明人： Ryo Kusakabe , Motoyuki Abe , Hideharu Ehara , Tohru Ishikawa , Takuya Mayuzumi , Kenji Hiraku
IPC分类号： F02M69/04
CPC分类号： F02D41/20 , F02D41/3005 , F02D2041/2003 , F02D2041/2013 , F02D2041/2037 , F02D2041/2051 , F02M51/061 , F02M69/04
摘要： In a drive unit of a fuel injection device, an electric current is supplied to the fuel injection device by applying a high voltage to the fuel injection device from a high voltage source whose voltage is boosted to a voltage higher than a battery voltage at the time of opening a valve of the fuel injection device. Thereafter, the electric current supplied to the fuel injection device is lowered to a current value at which a valve element cannot be held in a valve open state by stopping the applying of the high voltage from the high voltage source. Thereafter, in a stage where a supply current is switched to a hold current, another high voltage is applied to the fuel injection device from the high voltage source.
摘要翻译： 在燃料喷射装置的驱动单元中，通过从电压升高到高于当时电池电压的电压的高电压源向燃料喷射装置施加高电压，向燃料喷射装置供给电流 打开燃料喷射装置的阀。 此后，通过停止从高电压源施加高电压，供给燃料喷射装置的电流降低到阀元件不能保持在开阀状态的电流值。 此后，在将电源电流切换为保持电流的阶段中，从高电压源向燃料喷射装置施加另一高电压。
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公开(公告)号：US20120318883A1
公开(公告)日：2012-12-20
申请号：US13526734
申请日：2012-06-19
申请人： Ryo KUSAKABE , Motoyuki Abe , Yoshihito Yasukawa , Noriyuki Maekawa , Takuya Mayuzumi , Tohru Ishikawa
发明人： Ryo KUSAKABE , Motoyuki Abe , Yoshihito Yasukawa , Noriyuki Maekawa , Takuya Mayuzumi , Tohru Ishikawa
IPC分类号： F02M63/00
CPC分类号： F02M51/0653 , F02D41/20 , F02D2041/2013 , F02D2041/2055 , F02D2041/2058 , F02D2200/0618 , F02M45/12 , F02M51/0671 , F02M51/0685 , F02M59/366 , F02M61/1833 , F02M63/0033
摘要： A method of controlling a fuel injection device that can control a small amount of injection is provided. A fuel injection device for use in an internal combustion engine, includes: a valve body that can open and close a fuel passage, a needle that transfers a force with the valve body, and executes valve opening/closing operation, and an electromagnet that includes a coil and a magnetic core provided as a driver for driving the needle, and a cylindrical nozzle holder disposed on an outer periphery of the magnetic core and the needle, in which a current is supplied to the coil to exert a magnetic attractive force between the magnetic core and the needle to open the valve body.
摘要翻译： 提供了一种控制能够控制少量喷射的燃料喷射装置的方法。 一种用于内燃机的燃料喷射装置，包括：能够打开和关闭燃料通道的阀体，与阀体传递力并执行阀打开/关闭操作的针，以及电磁体，其包括 设置为用于驱动针的驱动器的线圈和磁芯，以及设置在磁芯和针的外周上的圆柱形喷嘴保持架，其中电流被供应到线圈以在第一和第二磁芯之间施加磁力吸引力 磁芯和针头打开阀体。
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公开(公告)号：US07789073B2
公开(公告)日：2010-09-07
申请号：US12339496
申请日：2008-12-19
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D2041/2044 , F02D2041/2058
摘要： A fuel injection control apparatus is capable of reducing a minimum quantity of fuel injection without reducing a maximum quantity of injection. To open a fuel injector valve, a driving circuit supplies an electric current from a high-voltage power supply to the fuel injector. Then, after valve opening, the high-voltage power supply is switched to a low-voltage power supply, and an open state of the valve is retained. For opening the valve of the fuel injector, a microcomputer, after supplying current from the high-voltage power supply to the injector, discharges the current rapidly for a decrease below a first current level at which the open state of the valve cannot be retained. The microcomputer then controls the supply current to the injector so as to supply a current at a second current level at which the open state of the valve can be retained.
摘要翻译： 燃料喷射控制装置能够在不减少最大喷射量的情况下减少燃料喷射的最小量。 为了打开燃料喷射阀，驱动电路将来自高压电源的电流提供给燃料喷射器。 然后，在阀打开之后，将高压电源切换到低压电源，并且保持阀的打开状态。 为了打开燃料喷射器的阀，微型计算机在从高压电源向喷射器提供电流之后，迅速地将电流放电到低于不能保持阀的打开状态的第一电流水平的下降。 微型计算机然后控制到喷射器的供应电流，以便以可以保持阀的打开状态的第二电流水平提供电流。
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公开(公告)号：US20090177369A1
公开(公告)日：2009-07-09
申请号：US12339496
申请日：2008-12-19
CPC分类号： F02D41/20 , F02D2041/2044 , F02D2041/2058
摘要： To provide a fuel injection control apparatus capable of reducing the minimum quantity of fuel injection without reducing the maximum quantity of injection.For fuel injector valve opening, a driving circuit 56 supplies an electric current from a high-voltage power supply VH to the fuel injector 53, then after valve opening, switches the high-voltage power supply VH to a low-voltage power supply LV, and retains the open state of the valve. A microcomputer 57 is adapted such that for opening the valve of the fuel injector, the microcomputer, after supplying the current from the high-voltage power supply to the injector 53, discharges the current rapidly for a decrease below a first current level Ihold1 at which the open state of the valve cannot be retained, and then controls the supply current to the injector 53 so as to supply a current of a second current level Ihold2 at which the open state of the valve can be retained.
摘要翻译： 提供能够在不减少最大喷射量的情况下减少燃料喷射量的最小量的燃料喷射控制装置。 对于燃料喷射阀打开，驱动电路56将电流从高压电源VH供给到燃料喷射器53，然后在阀打开之后，将高压电源VH切换到低压电源LV， 并保持阀的打开状态。 微型计算机57适于打开燃料喷射器的阀，微型计算机在将来自高压电源的电流提供给喷射器53之后，迅速地将电流放电到低于第一电流水平Ihold1， 阀的打开状态不能被保持，然后控制到喷射器53的供应电流，以便提供可以保持阀的打开状态的第二电流水平Ihold2的电流。
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公开(公告)号：US08113177B2
公开(公告)日：2012-02-14
申请号：US13046879
申请日：2011-03-14
IPC分类号： F02M69/46
CPC分类号： F02M51/0685 , F02M2200/306
摘要： An electromagnetic fuel injection valve comprising: a metallic cylindrical-shaped vessel provided at a tip end thereof with a fuel injection port, the other end thereof being closed by a stationary core provided centrally thereof with a through-hole; a movable member arranged between the stationary core and the fuel injection port and provided at a tip end thereof with a valve element, which opens and closes the fuel injection port, a maximum outside diameter of the movable member being smaller than a minimum inside diameter of the through-hole; and an electromagnetic drive mechanism that reciprocates the movable member.
摘要翻译： 一种电磁燃料喷射阀，包括：金属圆柱形容器，其末端设置有燃料喷射口，其另一端由设置在其中间的通孔的固定铁芯封闭; 设置在所述固定铁心和所述燃料喷射口之间并且在其末端设置有打开和关闭所述燃料喷射口的阀体的可动构件，所述可动构件的最大外径小于所述可动构件的最小内径 通孔; 以及使可动构件往复运动的电磁驱动机构。
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