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    Method and device for charging a capacitive actuator
    2.
    发明授权
    Method and device for charging a capacitive actuator 有权
    用于为电容式致动器充电的方法和装置

    公开(公告)号：US06459244B1

    公开(公告)日：2002-10-01

    申请号：US10042084

    申请日：2002-01-07

    申请人： Christian Hoffmann ,  Wolfgang Lingl ,  Richard Pirkl

    发明人： Christian Hoffmann ,  Wolfgang Lingl ,  Richard Pirkl

    IPC分类号： H02J700

    CPC分类号： F02D41/2096 ,  F02D2041/2006 ,  F02D2041/201 ,  F02D2041/2017 ,  H02N2/067

    摘要： A method and a device for charging a capacitive actuator are described. The capacitive actuator, in particular for a fuel injection valve of an internal combustion engine, is charged or discharged with different charging and discharging times. In order to shorten the charging time, the capacitance of the recharging capacitor which is dimensioned for a maximum charging time is reduced at a predefined time during the charging process. Two exemplary embodiments of a device for carrying out the method are explained in more detail.

    摘要翻译： 描述用于对电容性致动器充电的方法和装置。 特别是用于内燃机的燃料喷射阀的电容式致动器在不同的充放电时间被充放电。 为了缩短充电时间，在充电过程中的预定时间减小了充电时间最大化的充电电容器的电容。 更详细地说明用于执行该方法的装置的两个示例性实施例。

    Method and device for driving a capacitive control element
    5.
    发明授权
    Method and device for driving a capacitive control element 有权
    用于驱动电容控制元件的方法和装置

    公开(公告)号：US6121715A

    公开(公告)日：2000-09-19

    申请号：US335562

    申请日：1999-06-18

    申请人： Christian Hoffmann ,  Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Richard Pirkl

    发明人： Christian Hoffmann ,  Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Richard Pirkl

    IPC分类号： F02D41/20 ,  H01L41/04 ,  H02N2/06 ,  H01L41/08

    CPC分类号： F02D41/2096 ,  H02N2/06 ,  H02N2/067

    摘要： A capacitive control element is charged with a defined charging voltage Uc. From a stored mapping KF, the instantaneous control element capacitance Cp is determined from the charge voltage Uc and a control element voltage Up. In addition, energy E supplied to the control element is determined from the charge voltage Uc and the control element capacitance Cp. According to a deviation of energy E fed to the control element from a stipulated amount of energy Ev, the charge voltage Uc for a next drive process of the control element is regulated. The same process occurs for additional control elements.

    摘要翻译： 电容性控制元件用定义的充电电压Uc充电。 从存储的映射KF中，根据充电电压Uc和控制元件电压Up确定瞬时控制元件电容Cp。 此外，从充电电压Uc和控制元件电容Cp确定提供给控制元件的能量E。 根据从规定的能量Ev供给到控制元件的能量E的偏差，调节控制元件的下一个驱动处理的充电电压Uc。 对于其他控制元素也会发生相同的过程。

    Method and apparatus for controlling a capacitive actuator
    8.
    发明授权
    Method and apparatus for controlling a capacitive actuator 有权
    用于控制电容式致动器的方法和装置

    公开(公告)号：US06472796B1

    公开(公告)日：2002-10-29

    申请号：US09513623

    申请日：2000-02-25

    申请人： Christian Hoffmann ,  Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Richard Pirkl

    发明人： Christian Hoffmann ,  Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Richard Pirkl

    IPC分类号： H01L4108

    CPC分类号： F02D41/2096 ,  F02D41/221 ,  H02N2/06 ,  H02N2/067

    摘要： A method for controlling a capacitive actuator includes the steps of determining an energy applied to an actuator, measuring an actuator voltage present at the actuator, and inferring a functional state of the actuator by using the energy and the actuator voltage. A capacitive actuator is fed energy and the actuator voltage present at the actuator is measured. The energy and the comparison of the actuator voltage with reference values are used to infer a functional state, for example, either faults or correct function of the actuator or injection valve. Furthermore, the actuator voltage is used to infer an actuator stroke. The method is based on actuator characteristics. The invention also includes a circuit for controlling a capacitive actuator having a driving circuit with a main switch, a charging capacitor, a first series circuit including an oscillating coil, an auxiliary switch, and a second series circuit having a discharging switch, a charging switch, and a diode to be connected to the actuator, and a control device having a program and a family of characteristics with actuator characteristics defining characteristic curves, reference values, and correction factors.

    摘要翻译： 用于控制电容式致动器的方法包括以下步骤：确定施加到致动器的能量，测量致动器处存在的致动器电压，以及通过使用能量和致动器电压来推断致动器的功能状态。 电容式致动器被馈送能量，并且测量致动器处存在的致动器电压。 使用致动器电压和参考值的能量和比较来推断功能状态，例如故障或致动器或喷射阀的正确功能。 此外，致动器电压用于推断致动器行程。 该方法基于执行器特性。 本发明还包括用于控制具有主开关的驱动电路的电容式致动器的电路，充电电容器，包括振荡线圈的第一串联电路，辅助开关和具有放电开关的第二串联电路，充电开关 以及要连接到致动器的二极管，以及具有程序和特征族的控制装置，具有定义特性曲线，参考值和校正因子的致动器特性。

    Method and configuration for diagnosis of a capacitive actuator
    10.
    发明授权
    Method and configuration for diagnosis of a capacitive actuator 失效
    诊断电容式执行器的方法和配置

    公开(公告)号：US06366868B2

    公开(公告)日：2002-04-02

    申请号：US09821968

    申请日：2001-03-30

    申请人： Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Christian Hoffmann ,  Richard Pirkl ,  Walter Schrod

    发明人： Hellmut Freudenberg ,  Hartmut Gerken ,  Martin Hecker ,  Christian Hoffmann ,  Richard Pirkl ,  Walter Schrod

    IPC分类号： H01L4104

    CPC分类号： F02M65/00 ,  F02D41/2096 ,  F02D41/221 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2089 ,  F02D2041/2093 ,  F02M2200/21 ,  G01R31/2829 ,  H02N2/06 ,  Y10T307/747 ,  Y10T307/826

    摘要： A method of diagnosing an actuator includes supplying a predeterminable amount of energy to an actuator through a charge-reversal circuit. Faulty functional statuses of the actuator and its supply lines and/or its drive circuits, short- or long-term interruptions, short-circuits within the actuator or its supply lines, or excessively low capacitance values may be deduced from a discrepancy between reference values and determined variables including actuator voltage, actuator current, and actuator charge. A short-circuit of an electrical connection within the actuator or an electrical connection between the drive circuit and the actuator can be deduced if the actuator voltage is less than a lower voltage value. An interruption in the electrical connection within is the actuator or an electrical connection between the drive circuit and the actuator may be deduced if an actuator peak current is less than a lower current value. An apparatus for performing the method is also provided.

    摘要翻译： 诊断致动器的方法包括通过电荷反转电路向致动器提供预定量的能量。 执行机构及其供电线路和/或其驱动电路的功能状态不良，执行器或其供电线路中的短期或长期中断，短路或过低的电容值可能会从参考值 并确定变量，包括执行器电压，执行器电流和执行器充电。 如果执行器电压小于较低的电压值，则可以推导出致动器内的电气连接的短路或驱动电路与致动器之间的电气连接。 如果致动器峰值电流小于较低的电流值，那么内部电气连接的中断是致动器，或者可以推导出驱动电路和致动器之间的电气连接。 还提供了一种用于执行该方法的装置。