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    Online optimization of injection systems having piezoelectric elements
    1.
    发明授权
    Online optimization of injection systems having piezoelectric elements 失效
    具有压电元件的注射系统的在线优化

    公开(公告)号：US06691682B2

    公开(公告)日：2004-02-17

    申请号：US09824081

    申请日：2001-04-02

    申请人： Johannes-Jörg Rueger ,  Dirk Samuelsen

    发明人： Johannes-Jörg Rueger ,  Dirk Samuelsen

    IPC分类号： F02M3704

    CPC分类号： F02D41/2096 ,  F02D41/008 ,  F02D41/2438 ,  F02D41/2467

    摘要： Online optimization of injection systems having piezoelectric elements which are used, for example, as actuators in a fuel injection system of an internal combustion engine, wherein the piezoelectric element is activated by an activation voltage having a value set as a function of operating characteristics of the particular piezoelectric element, and based upon, for example, a correction value for injected fuel volume.

    摘要翻译： 具有压电元件的喷射系统的在线优化，所述压电元件例如用作内燃机的燃料喷射系统中的致动器，其中所述压电元件由具有设定为所述内燃机的运行特性的函数的激活电压而被激活 特定的压电元件，并且基于例如喷射燃料量的校正值。

    Method and apparatus for controlling system parameters
    2.
    发明授权
    Method and apparatus for controlling system parameters 有权
    用于控制系统参数的方法和装置

    公开(公告)号：US06826504B2

    公开(公告)日：2004-11-30

    申请号：US09824080

    申请日：2001-04-02

    申请人： Johannes-Jörg Rueger ,  Matthias Mrosik ,  Volker Pitzal ,  Udo Schulz

    发明人： Johannes-Jörg Rueger ,  Matthias Mrosik ,  Volker Pitzal ,  Udo Schulz

    IPC分类号： G01R3500

    CPC分类号： H02N2/067 ,  F02D41/008 ,  F02D41/2096 ,  H02N2/062

    摘要： A method and an apparatus for controlling system parameters, in particular for controlling the voltage applied to piezoelectric elements (10, 20, 30, 40, 50, 60) within a circuit (A) for charging and discharging piezoelectric elements (10, 20, 30, 40, 50, 60) are described. The method is characterized by modifying at least one control parameter for the control of a system parameter, in particular a target voltage for the voltage applied to a piezoelectric element (10, 20, 30, 40, 50, 60), in view of at least one systematic error occurring during a first control procedure of the system parameter to obtain a corrected control parameter for a second and/or a further control of the system parameter. The apparatus is particularly eligible for use with the inventive method.

    摘要翻译： 一种用于控制系统参数的方法和装置，特别是用于控制施加到用于对压电元件（10,20,30,40,50,60）进行充电和放电的电路（A）内的压电元件（10,20,30,40,50,60） 30，40，50，60）。 该方法的特征在于，考虑到对于施加到压电元件（10,20,30,40,50,60）的电压，修改用于控制系统参数的至少一个控制参数，特别是用于施加到压电元件（10,20,30,40,50,60）的电压的目标电压 在系统参数的第一控制过程期间发生最少一个系统误差，以获得系统参数的第二和/或进一步控制的校正控制参数。 该装置特别适用于本发明的方法。

    Fuel injection system
    4.
    发明授权
    Fuel injection system 有权
    燃油喷射系统

    公开(公告)号：US06498418B2

    公开(公告)日：2002-12-24

    申请号：US09824192

    申请日：2001-04-02

    申请人： Johannes-Jörg Rueger

    发明人： Johannes-Jörg Rueger

    IPC分类号： F02D4122

    CPC分类号： F02D41/2096 ,  F02D41/221 ,  F02D2041/2003 ,  F02D2041/2093

    摘要： The invention describes a fuel injection system comprising a piezoelectric element for controlling an amount of injected fuel, by charging and discharging the piezoelectric element using a driving circuitry, and a current diagnosis unit capable of detecting a fault of a current flowing in the driving circuitry within 10 &mgr;sec of the fault occurring.

    摘要翻译： 本发明描述了一种燃料喷射系统，其包括用于通过使用驱动电路对压电元件充电和放电来控制喷射燃料量的压电元件，以及能够检测在驱动电路内流动的电流故障的电流诊断单元 10个音箱发生故障。

    Apparatus and method for detecting a short circuit to the battery voltage when driving piezoelectric elements
    6.
    发明授权
    Apparatus and method for detecting a short circuit to the battery voltage when driving piezoelectric elements 有权
    用于在驱动压电元件时检测电池电压短路的装置和方法

    公开(公告)号：US06522049B2

    公开(公告)日：2003-02-18

    申请号：US09824292

    申请日：2001-04-02

    申请人： Johannes-Jörg Rueger

    发明人： Johannes-Jörg Rueger

    IPC分类号： H01L4109

    CPC分类号： F02D41/2096 ,  F02D41/221 ,  F02D41/3809 ,  F02D2041/2093 ,  H02N2/062 ,  H02N2/067

    摘要： The invention describes an apparatus and method for detecting a short circuit to a battery voltage when driving a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The apparatus and method are characterized in that separate switches are used for selecting a piezoelectric element to be operated and for selecting the operation that is to be performed on the piezoelectric element. A short circuit to battery voltage is detected by first activating the switches to select a piezoelectric element. For a predetermined time interval, the invention monitors for abnormal currents flowing in series with the piezoelectric element. If abnormal currents are detected, an error signal is generated indicating a short circuit to battery voltage. If no abnormal currents are detected during the predetermined time interval, then the switches for selecting a charging or discharging operation are activated to continue with the normal cycling of the piezoelectric elements.

    摘要翻译： 本发明描述了一种用于在驱动压电元件例如用作内燃机的燃料喷射系统中的致动器时检测电池电压短路的装置和方法。 该装置和方法的特征在于，使用单独的开关来选择要被操作的压电元件和用于选择对压电元件执行的操作。 通过首先启动开关来选择压电元件来检测电池电压的短路。 在预定的时间间隔内，本发明监测与压电元件串联流动的异常电流。 如果检测到异常电流，则产生指示电池电压短路的误差信号。 如果在预定时间间隔内没有检测到异常电流，则用于选择充电或放电操作的开关被激活以继续压电元件的正常循环。

    Method and device for detecting a fault current across a piezoelectric actuator of an injector or its high voltage supply lead
    8.
    发明授权
    Method and device for detecting a fault current across a piezoelectric actuator of an injector or its high voltage supply lead 失效
    用于检测喷射器的压电致动器或其高压电源引线上的故障电流的方法和装置

    公开(公告)号：US06700301B2

    公开(公告)日：2004-03-02

    申请号：US09901378

    申请日：2001-07-09

    申请人： Johannes-Jörg Rueger ,  Matthias Mrosik ,  Marco Gangi ,  Udo Schulz

    发明人： Johannes-Jörg Rueger ,  Matthias Mrosik ,  Marco Gangi ,  Udo Schulz

    IPC分类号： H01L4108

    CPC分类号： F02D41/221 ,  F02D41/2096 ,  F02D2041/2093 ,  G01R31/2829

    摘要： A method and a device are described for detecting a fault current across a piezoelectric actuator (5) of an injector or its high voltage supply lead (6, 6a). Because the fault current upon contact with a person, for example, is relatively small compared to the useful current that charges or discharges the actuator, direct measurement of the current is not reliable. Therefore, it is suggested that, during the injection or in an injection pause, when the piezoelectric actuator (5) is charged, the voltage variation or a change in voltage (dU) be measured and the difference be compared to a predefined threshold value (S). When the threshold value (S) is exceeded, a fault message is produced, the voltage source is shut off, and/or the piezoelectric actuator (5) is discharged. The measured fault can be weighted using a counting algorithm. The method thus provides maximum protection upon contact, in particular for service personnel.

    摘要翻译： 描述了用于检测喷射器或其高压电源引线（6,6a）的压电致动器（5）上的故障电流的方法和装置。 因为例如与人接触的故障电流相对于对致动器进行充电或放电的有用电流相对较小，直接测量电流是不可靠的。 因此，建议在注入或注入暂停期间，当压电致动器（5）充电时，测量电压变化或电压变化（dU），并将该差异与预定阈值（ S）。 当超过阈值（S）时，产生故障消息，关闭电压源，和/或压电致动器（5）放电。 测量故障可以使用计数算法加权。 因此，该方法在接触时提供最大的保护，特别是对于维修人员。