Fuel injector closing timing adjustment systems and methods
    1.
    发明授权
    Fuel injector closing timing adjustment systems and methods 有权
    燃油喷射器关闭时间调整系统和方法

    公开(公告)号:US09074552B2

    公开(公告)日:2015-07-07

    申请号:US13590599

    申请日:2012-08-21

    摘要: A system for a vehicle includes a voltage measuring module, a second derivative module, a closing period module, and an injector driver module. The voltage measuring module measures first and second voltages at first and second electrical connectors of a fuel injector that injects fuel directly into a cylinder of an engine. The second derivative module determines a second-order derivative of a difference between the first and second voltages. The closing period module determines a closing period of the fuel injector based on the second-order derivative of the difference. The injector driver module selectively adjusts closing of the fuel injector based on the closing period.

    摘要翻译: 一种用于车辆的系统包括电压测量模块,二阶导数模块,闭合周期模块和喷射器驱动器模块。 电压测量模块测量燃料喷射器的第一和第二电连接器处的第一和第二电压,其将燃料直接喷射到发动机的气缸中。 二阶导数模块确定第一和第二电压之间的差的二阶导数。 关闭期间模块基于差的二阶导数来确定燃料喷射器的关闭周期。 喷射器驱动器模块基于关闭周期选择性地调节燃料喷射器的关闭。

    FUEL INJECTOR CLOSING TIMING ADJUSTMENT SYSTEMS AND METHODS
    6.
    发明申请
    FUEL INJECTOR CLOSING TIMING ADJUSTMENT SYSTEMS AND METHODS 有权
    燃油喷射器关闭时间调整系统和方法

    公开(公告)号:US20140000564A1

    公开(公告)日:2014-01-02

    申请号:US13590599

    申请日:2012-08-21

    IPC分类号: F02M51/06

    摘要: A system for a vehicle includes a voltage measuring module, a second derivative module, a closing period module, and an injector driver module. The voltage measuring module measures first and second voltages at first and second electrical connectors of a fuel injector that injects fuel directly into a cylinder of an engine. The second derivative module determines a second-order derivative of a difference between the first and second voltages. The closing period module determines a closing period of the fuel injector based on the second-order derivative of the difference. The injector driver module selectively adjusts closing of the fuel injector based on the closing period.

    摘要翻译: 一种用于车辆的系统包括电压测量模块,二阶导数模块,闭合周期模块和喷射器驱动器模块。 电压测量模块测量燃料喷射器的第一和第二电连接器处的第一和第二电压,其将燃料直接喷射到发动机的气缸中。 二阶导数模块确定第一和第二电压之间的差的二阶导数。 关闭期间模块基于差的二阶导数来确定燃料喷射器的关闭周期。 喷射器驱动器模块基于关闭周期选择性地调节燃料喷射器的关闭。

    Control systems and methods for newly assembled engines
    9.
    发明授权
    Control systems and methods for newly assembled engines 有权
    新组装发动机的控制系统和方法

    公开(公告)号:US08146569B2

    公开(公告)日:2012-04-03

    申请号:US12505150

    申请日:2009-07-17

    IPC分类号: F02M51/00

    摘要: An engine control system for a vehicle comprises a combustion control module and an engine startup module. The combustion control module selectively controls a spark timing and airflow into an engine based on a counter value. The engine startup module, when the counter value is one of greater than and less than a predetermined final value, controls an equivalence ratio (EQR) of an air/fuel mixture provided to the engine during an engine cranking period based on a fuel rail pressure and controls the EQR during an engine running period based on the fuel rail pressure and an engine runtime period. The counter value is set to the predetermined final value after the engine is started for a first time after the engine is assembled.

    摘要翻译: 一种用于车辆的发动机控制系统包括燃烧控制模块和发动机启动模块。 燃烧控制模块基于计数器值选择性地控制火花正时和气流进入发动机。 发动机起动模块当计数器值大于并小于预定最终值时,控制在发动机起动期间基于燃料轨道压力提供给发动机的空气/燃料混合物的当量比(EQR) 并且在发动机运行期间基于燃料轨压力和发动机运行时间段来控制EQR。 在发动机组装后第一次启动发动机后,将计数器值设定为预定的最终值。