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    System and method for controlling an injection time of a fuel injector based on closing electrical decay
    1.
    发明授权
    System and method for controlling an injection time of a fuel injector based on closing electrical decay 有权
    基于闭合电气衰减来控制燃料喷射器的喷射时间的系统和方法

    公开(公告)号：US08656890B2

    公开(公告)日：2014-02-25

    申请号：US13069862

    申请日：2011-03-23

    申请人： Philippe S. Farah ,  Ronald J. Krefta ,  Brent J. Wahba ,  Eugene A. Kobos ,  Kevin R. Keegan

    发明人： Philippe S. Farah ,  Ronald J. Krefta ,  Brent J. Wahba ,  Eugene A. Kobos ,  Kevin R. Keegan

    IPC分类号： F02M1/00

    CPC分类号： F02D41/20 ,  F02D41/1401 ,  F02D2041/2027 ,  F02D2041/2055

    摘要： A system and method for controlling an injection time of a fuel injector. The system includes a drive circuit configured to output a drive signal having a pulse width, wherein the injection time is influenced by the pulse width and a closing electrical decay of the fuel injector. A controller is configured to determine the closing electrical decay of the fuel injector and adapt the pulse width based on the closing electrical decay to control the injection time. The closing electrical decay includes a closing response. The controller determines the closing response based on an injector signal, such as a coil voltage of the fuel injector. By determining the closing response, the pulse width can be adjusted to compensate for fuel injector part-to-part variability, fuel injector wear, variations in fuel pressure received by the fuel injector, dirt in the fuel injector, and the like.

    摘要翻译： 一种用于控制燃料喷射器的喷射时间的系统和方法。 该系统包括：驱动电路，被配置为输出具有脉冲宽度的驱动信号，其中喷射时间受燃料喷射器的脉冲宽度和闭合电衰减的影响。 控制器被配置为确定燃料喷射器的闭合电衰减，并且基于闭合电衰减来适应脉冲宽度以控制喷射时间。 关闭电气衰减包括关闭响应。 控制器基于诸如燃料喷射器的线圈电压的喷射器信号来确定关闭响应。 通过确定关闭响应，可以调整脉冲宽度以补偿燃料喷射器部件间变化，燃料喷射器磨损，燃料喷射器接收的燃料压力变化，燃料喷射器中的污垢等。

    Method and apparatus for controlling a dual coil fuel injector
    2.
    发明授权
    Method and apparatus for controlling a dual coil fuel injector 失效
    用于控制双线圈燃料喷射器的方法和装置

    公开(公告)号：US06799559B2

    公开(公告)日：2004-10-05

    申请号：US10233124

    申请日：2002-08-30

    申请人： Harry R. Mieny ,  Eugene A. Kobos ,  Gordon Cheever, Jr.

    发明人： Harry R. Mieny ,  Eugene A. Kobos ,  Gordon Cheever, Jr.

    IPC分类号： F02D4134

    CPC分类号： F02D41/20 ,  F02D2041/2079 ,  F02M51/0617 ,  F02M51/0621

    摘要： A method for controlling a dual coil fuel injector having an opening coil and a closing coil includes issuing an opening coil pulse to the opening coil. The opening coil pulse has an opening coil pulse width (OCPW) and an opening coil turn on time (OCTOT). A closing coil turn on time (CCTOT) is calculated dependent at least in part upon the OCPW. A closing coil pulse is issued to the closing coil at the calculated CCTOT.

    摘要翻译： 用于控制具有开启线圈和闭合线圈的双线圈燃料喷射器的方法包括向开启线圈发出开启线圈脉冲。 开路线圈脉冲具有开路线圈脉冲宽度（OCPW）和开路线圈导通时间（OCTOT）。 关闭线圈打开时间（CCTOT）的计算至少部分取决于OCPW。 在计算出的CCTOT时，向闭合线圈发出闭合线圈脉冲。