公开(公告)号：US06435162B1

公开(公告)日：2002-08-20

申请号：US09665250

申请日：2000-09-18

申请人： Wolfgang Lingl ,  Walter Schrod

发明人： Wolfgang Lingl ,  Walter Schrod

IPC分类号： F02M3704

CPC分类号： H02N2/067 ,  F02D41/2096 ,  F02D2041/2006 ,  F02D2041/2041

摘要： A method and an apparatus for charging at least one capacitive control element, in particular a fuel injection valve of an internal combustion engine, charge the capacitive control element with different charging times. In order to shorten a charging time, a charging process is interrupted at a predetermined time, and a tuned circuit is connected to a freewheeling circuit which contains the control element and a ringing or charge reversal coil. If the freewheeling circuit contains a further capacitor, the charging process is further shortened, and a portion of a charge energy is fed back into a charge source while the control element is being discharged.

摘要翻译： 用于对至少一个电容性控制元件，特别是内燃机的燃料喷射阀进行充电的方法和装置，对不同充电时间的电容控制元件进行充电。 为了缩短充电时间，在预定时间内中断充电处理，并且将调谐电路连接到包含控制元件和振铃或充电反向线圈的续流电路。 如果续流电路包含另外的电容器，则充电过程进一步缩短，并且一部分充电能量在控制元件被放电时被反馈到电荷源中。

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。

公开(公告)号：US06349705B1

公开(公告)日：2002-02-26

申请号：US09521500

申请日：2000-03-09

申请人： Richard Pirkl ,  Achim Przymusinski ,  Walter Schrod ,  Mark Elliott

发明人： Richard Pirkl ,  Achim Przymusinski ,  Walter Schrod ,  Mark Elliott

IPC分类号： F02M5100

CPC分类号： F02D41/221 ,  F02D41/2096 ,  H01L41/042 ,  H02N2/06

摘要： A capacitive actuator is driven with a control signal st. The duration ti of actual actuator actuation is compared with the duration tst of the control signal st. Proper operation is determined, and the actuator is assumed to be operating correctly, if the measured duration ti is within a range determined by the duration tst of the control signal.

摘要翻译： 电容式致动器由控制信号st驱动。 将实际致动器致动的持续时间ti与控制信号st的持续时间tst进行比较。 如果测量的持续时间ti在由控制信号的持续时间tst确定的范围内，则确定正确的操作，并且假设致动器正常工作。