PINTLE VELOCITY DETERMINATION IN A SOLENOID FUEL INJECTOR AND CONTROL METHOD
    51.
    发明申请
    PINTLE VELOCITY DETERMINATION IN A SOLENOID FUEL INJECTOR AND CONTROL METHOD 有权
    电磁燃油喷射器中的快速速度测定和控制方法

    公开(公告)号:US20150040871A1

    公开(公告)日:2015-02-12

    申请号:US14346019

    申请日:2012-09-20

    Inventor: Francois Ravenda

    Abstract: A method is provided for determining the velocity of a pintle assembly in a solenoid fuel injector during a closing stroke of the pintle assembly, such that a braking step is performed during the closing stroke, which includes operating an injector driver with a current regulator to establish a braking current in the solenoid coil. The velocity of the pintle assembly is derived from the duty-cycle of the current regulator during the braking step. A method of operating a solenoid fuel injector, in particular for gaseous fuel, using the so-determined pintle velocity is also provided.

    Abstract translation: 提供了一种用于在枢栓组件的关闭行程期间确定螺线管燃料喷射器中的枢栓组件的速度的方法,使得在关闭冲程期间执行制动步骤,其包括用电流调节器操作喷射器驱动器以建立 电磁线圈中的制动电流。 枢轴组件的速度来自制动步骤期间电流调节器的占空比。 还提供了使用确定的枢轴速度来操作螺线管燃料喷射器,特别是用于气体燃料的方法。

    Method of controlling a piezoelectric actuator
    55.
    发明授权
    Method of controlling a piezoelectric actuator 有权
    控制压电致动器的方法

    公开(公告)号:US07856964B2

    公开(公告)日:2010-12-28

    申请号:US11804923

    申请日:2007-05-21

    Abstract: A method for controlling the displacement of a stack of a piezoelectric actuator for use in a fuel injector comprises determining a desired amount of charge (ΔQ) to be added or removed from the stack. The method further comprises determining an operating parameter of the fuel system and selecting a drive current level (PO, SO) and a drive time (topen, tclose) in accordance with the desired amount of charge (ΔQ) and the operating parameter, and driving the drive current through the stack for the drive time (topen, tclose) in order to add or remove the desired amount of charge (ΔQ).

    Abstract translation: 用于控制用于燃料喷射器的压电致动器的堆叠的位移的方法包括确定要从堆叠中添加或移除的期望的电荷量(&Dgr; Q)。 该方法还包括根据期望的充电量(&Dgr; Q)和操作参数确定燃料系统的运行参数并选择驱动电流水平(PO,SO)和驱动时间(topen,tclose) 并驱动驱动电流通过堆栈驱动时间(topen,tclose),以便添加或删除所需的电荷量(&Dgr; Q)。

    Electromagnetic fuel injection valve device
    56.
    发明授权
    Electromagnetic fuel injection valve device 有权
    电磁燃油喷射阀装置

    公开(公告)号:US07774126B2

    公开(公告)日:2010-08-10

    申请号:US12117295

    申请日:2008-05-08

    Abstract: An electromagnetic fuel injection valve device for an internal combustion engine is configured to carry out an energization to an electromagnetic coil of an injection valve actuator for a valve opening motion and additionally carry out a mid-term energization at a time interval between both an energization for valve opening of a previous fuel injection and an energization for valve opening of a subsequent fuel injection. A current of the mid-term energization is smaller than a current of the energization for valve opening motion and has the same direction as a direction of the current of the energization for valve opening motion.

    Abstract translation: 用于内燃机的电磁燃料喷射阀装置被配置为对用于阀打开运动的喷射阀致动器的电磁线圈进行通电,并且在两个通电期间的时间间隔进一步进行中期通电 先前的燃料喷射的阀打开和随后的燃料喷射的阀打开的通电。 中期通电的电流小于阀开度运动的通电电流,并且具有与开阀运动的通电电流的方向相同的方向。

    Electromagnetic Fuel Injection Valve Device
    57.
    发明申请
    Electromagnetic Fuel Injection Valve Device 有权
    电磁燃油喷射阀装置

    公开(公告)号:US20080276907A1

    公开(公告)日:2008-11-13

    申请号:US12117295

    申请日:2008-05-08

    Abstract: An electromagnetic fuel injection valve device for an internal combustion engine is configured to carry out an energization to an electromagnetic coil of an injection valve actuator for a valve opening motion and additionally carry out a mid-term energization at a time interval between both an energization for valve opening of a previous fuel injection and an energization for valve opening of a subsequent fuel injection. A current of the mid-term energization is smaller than a current of the energization for valve opening motion and has the same direction as a direction of the current of the energization for valve opening motion.

    Abstract translation: 用于内燃机的电磁燃料喷射阀装置被配置为对用于阀打开运动的喷射阀致动器的电磁线圈进行通电,并且在两个通电期间的时间间隔进一步进行中期通电 先前的燃料喷射的阀打开和随后的燃料喷射的阀打开的通电。 中期通电的电流小于阀开度运动的通电电流,并且具有与开阀运动的通电电流的方向相同的方向。

    Electromagnetic Switching Device and Method for the Operation Thereof
    58.
    发明申请
    Electromagnetic Switching Device and Method for the Operation Thereof 有权
    电磁开关装置及其操作方法

    公开(公告)号:US20080192402A1

    公开(公告)日:2008-08-14

    申请号:US11922206

    申请日:2005-06-16

    Abstract: Disclosed is an electromagnetic switching device including a number of fixed contact pieces, a solenoid-operated mechanism, a contact support which can be moved counter to restoring devices in at least one embodiment, with the aid of the solenoid-operated mechanism and on which a number of movable contact pieces are arranged, and an off stop for the contact support. A sensor is provided, in at least one embodiment, for detecting the position of the contact support while a control unit is provided which is connected to the sensor and regulates and/or controls the solenoid-operated mechanism during a switch-off process in order to decelerate the contact support before the same hits the off stop. Also disclosed is a method for operating such a switching device. The contact support, in at least one embodiment, transmits only a small momentum to the off stop, thus reducing the load applied to the involved parts. Such a switching device therefore has a longer service life than conventional switching devices.

    Abstract translation: 公开了一种电磁切换装置,其包括多个固定接触件,电磁操作机构,在至少一个实施例中可以与恢复装置相对移动的触点支撑件,借助于电磁操作机构, 布置了可动接触件的数量,以及用于接触支撑件的停止。 在至少一个实施例中,提供了一种传感器,用于在提供连接到传感器的控制单元时检测接触支架的位置,并在关闭过程期间按顺序调节和/或控制电磁操作机构 在相同的点击停止之前减速触点支撑。 还公开了一种用于操作这种开关装置的方法。 在至少一个实施例中,接触支撑件仅将一个小的动量传递到停止,从而减少施加到所涉及部件上的负载。 因此,这种开关装置具有比常规开关装置更长的使用寿命。

    Current supply circuit for engine starters

    公开(公告)号:US06598574B2

    公开(公告)日:2003-07-29

    申请号:US09922689

    申请日:2001-08-07

    CPC classification number: F02N11/087 F02D2041/2037 F02N11/0859 H02P1/04

    Abstract: In a current supply circuit for starters, an inductance coil is connected in series or a capacitor is connected in parallel with a starter motor to slow down the rise of a current supplied to the starter motor. The current, which flows in a magnet switch upon occurrence of bouncing of the magnet switch, is lowered. Thus even if the time of occurrence of bouncing delays due to increased inductance of a pull-in coil, the magnet switch turns on and off a small current by bouncing and hence generation of noise arising from bouncing can be suppressed. Generation of arc in the magnet switch due to bouncing can be suppressed, and the reliability of the magnet switch can be increased.

    Directly actuated injection valve with a ferromagnetic needle
    60.
    发明授权
    Directly actuated injection valve with a ferromagnetic needle 有权
    直接致动注射阀,带有铁磁针

    公开(公告)号:US06584958B2

    公开(公告)日:2003-07-01

    申请号:US09863188

    申请日:2001-05-23

    Abstract: A directly actuated injection valve comprises a hollow valve housing, a valve needle disposed within the hollow interior, a needle spring and a tubular magnetostrictive actuator assembly disposed in an annular space around a portion of the valve needle. A magnetic field activates the magnetostrictive material to change its length to cause a corresponding movement of the valve needle that actuates the valve. The valve needle is formed from a ferromagnetic material and extends through the tubular magnetostrictive actuator assembly without interfering with the flux field that is directed through the magnetostrictive member. A passive hydraulic link assembly is preferably employed to compensate for component wear, temperature effects and manufacturing variations within design tolerances.

    Abstract translation: 直接致动的喷射阀包括中空阀壳体,设置在中空内部的阀针,针弹簧和管状磁致伸缩致动器组件,其设置在围绕阀针的一部分的环形空间中。 磁场激活磁致伸缩材料以改变其长度,以引起致动阀的阀针的相应运动。 阀针由铁磁材料形成并且延伸穿过管状磁致伸缩致动器组件而不干扰通过磁致伸缩构件的磁通场。 被动液压连杆组件优选地用于补偿部件磨损,温度影响和设计公差内的制造变化。

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