Method and device for operating an internal combustion engine
    3.
    发明授权
    Method and device for operating an internal combustion engine 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US09518545B2

    公开(公告)日:2016-12-13

    申请号:US14427506

    申请日:2013-10-04

    Abstract: An internal combustion engine has a pressure accumulator, a high-pressure pump, a controllable actuator, and camshaft. The high-pressure pump includes a pump piston movably arranged in a cylinder chamber. The pump piston is supported on the camshaft and thus influences an open volume of the cylinder chamber depending on a rotation of the camshaft. The cylinder chamber is hydraulically coupled to the pressure accumulator to pump the fluid into the pressure accumulator. The actuator drives the camshaft such that the camshaft rotates about the camshaft's longitudinal axis in a specified angular range. The high-pressure pump is controlled prior to an expected motor start such that the high-pressure pump is in a self-priming operating state and the actuator is controlled such that the camshaft rotates about the camshaft longitudinal axis in the specified angular range at least once in a first direction and at least once in an opposite second direction.

    Abstract translation: 内燃机具有压力蓄能器,高压泵,可控致动器和凸轮轴。 高压泵包括可活动地布置在气缸室中的泵活塞。 泵活塞支撑在凸轮轴上,因此影响气缸室的敞开体积,这取决于凸轮轴的旋转。 气缸室液压耦合到蓄压器,以将流体泵送到蓄压器中。 致动器驱动凸轮轴,使得凸轮轴在凸轮轴的纵向轴线上以指定的角度范围旋转。 高压泵在预期的电动机启动之前被控制,使得高压泵处于自吸操作状态,并且致动器被控制,使得凸轮轴至少在特定角度范围内围绕凸轮轴纵向轴线旋转 一次在第一方向上并且在相反的第二方向上至少一次。

    Method for Operating a High Pressure Pump of an Injection System and an Injection System
    6.
    发明申请
    Method for Operating a High Pressure Pump of an Injection System and an Injection System 审中-公开
    喷射系统和注射系统高压泵的操作方法

    公开(公告)号:US20170030288A1

    公开(公告)日:2017-02-02

    申请号:US15301483

    申请日:2015-03-05

    Abstract: A method for operating a high-pressure pump of an injection system and an injection system is provided. The method relates to a switching off of additional pulses, which are applied to a valve of the high-pressure pump, if the determined coil temperature of the valve exceeds a limit value. The method is, for instance, then carried out if additional pulses are applied to the valve to reduce noise (“whisper function”). Current information and voltage information from the control signal of the valve of the high-pressure pump are used to measure the temperature of the valve and switch off additional current pulses through this information if there is a risk of the valve overheating. The disclosure further describes an injection system of a combustion engine, wherein the injection system comprises a high-pressure pump having a valve and a corresponding control unit.

    Abstract translation: 提供了一种用于操作注射系统和注射系统的高压泵的方法。 如果所确定的阀的线圈温度超过极限值,该方法涉及施加到高压泵的阀的附加脉冲的关闭。 例如,如果向阀施加额外的脉冲以减少噪声(“耳语功能”),则该方法被执行。 如果存在阀过热的风险,来自高压泵阀门的控制信号的当前信息和电压信息用于测量阀的温度并关闭附加电流脉冲。 本公开进一步描述了内燃机的喷射系统,其中喷射系统包括具有阀和相应的控制单元的高压泵。

    Method and Device for Controlling a Valve
    7.
    发明申请
    Method and Device for Controlling a Valve 有权
    用于控制阀门的方法和装置

    公开(公告)号:US20150263648A1

    公开(公告)日:2015-09-17

    申请号:US14434654

    申请日:2013-10-04

    Abstract: A method includes applying a specified starting voltage to a valve actuator in a first specified operating mode for closing the valve, the valve having a spring with a spring force against which an actuator force of the actuator acts. In the first operating mode, a first period of time is ascertained which represents that a maximum current value has been reached. Furthermore, a second period of time is ascertained which represents that a minimum current value has been reached. In a specified second operating mode, the specified starting voltage is applied to the actuator until the end of the first period of time is reached, and a control voltage is then applied to the actuator until the end of the second period of time is reached, wherein the average value of the control voltage is lower than the average value of the starting voltage.

    Abstract translation: 一种方法包括在第一规定的操作模式中将指定的启动电压施加到阀致动器以关闭阀,该阀具有弹簧力,弹簧力作用于致动器的作用力。 在第一操作模式中,确定表示达到最大电流值的第一时间段。 此外,确定表示已经达到最小电流值的第二时间段。 在指定的第二操作模式中,将指定的启动电压施加到致动器直到达到第一时间段结束,然后将控制电压施加到致动器直到第二时间段结束, 其中所述控制电压的平均值低于所述启动电压的平均值。

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