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    • 1. 发明授权
    • Method and apparatus for detecting blocking of a direct current motor
    • 用于检测直流电动机阻塞的方法和装置
    • US08063590B2
    • 2011-11-22
    • US11570960
    • 2005-06-01
    • Norbert KnabNikolas HaberlFrank FischerJoerg Eichhorn
    • Norbert KnabNikolas HaberlFrank FischerJoerg Eichhorn
    • H02P1/00
    • H02H7/093
    • Both a method and a use by this method of an apparatus for detecting blocking of a direct current motor (10), in particular a direct current motor (10) for a blower of a motor vehicle, is presented. The direct current motor (10) is deactivated by a computer unit (20) with the aid of a switching means (18) for a defined time period (Toff). Within the defined time period (Toff), at least one subsequent time (ta, tb), an induced voltage (U) of the direct current motor (10) is measured and forwarded to the computer unit (20). The direct current motor (10) remains deactivated if the induced voltage (U) undershoots a predetermined threshold value (Uth), or the direct current motor (10) is reactivated if the induced voltage (U) of the direct current motor (10) does not undershoot the predetermined threshold value (Uth).
    • 提出了用于检测直流电动机(10)的阻塞装置的方法和使用方法,特别是用于机动车辆的鼓风机的直流电动机(10)。 借助于切换装置(18)在一定时间段内(Toff),直流电动机(10)由计算机单元(20)停用。 在定义的时间段(Toff)内,测量直流电动机(10)的至少一个后续时间(ta,tb),感应电压(U)并将其转发到计算机单元(20)。 如果感应电压(U)下冲预定的阈值(Uth),则直流电动机(10)将保持停用,或直流电动机(10)的感应电压(U) 不会超过预定阈值(Uth)。
    • 4. 发明授权
    • Electric motor having a pulse width modulator
    • 具有脉宽调制器的电动机
    • US09018890B2
    • 2015-04-28
    • US13518600
    • 2010-12-01
    • Volker LurkNikolas HaberlFrank FischerChristian PoddeyMichael KoernerTobias Stiefel
    • Volker LurkNikolas HaberlFrank FischerChristian PoddeyMichael KoernerTobias Stiefel
    • H02P23/00H02P7/29
    • H02P7/29
    • The invention relates to an electric motor having a stator and a rotor. The electric motor also comprises a controller, wherein the controller is connected to the stator and/or rotor, and is designed for applying current to the stator and/or rotor for rotating the rotor. According to the invention, the controller comprises a pulse width modulator designed for controlling a power output of the electric motor, in order to generate a predetermined number of different current application patterns. The current application patterns each represent a power output of the electric motor, and preferably comprise a time sequence of current pulses, each having a current pulse duration. The controller is designed for applying current to the electric motor according to at least two different current application patterns for actuating the electric motor during a time interval of actuation, such that a power output of the electric motor in the time-based average of the time interval of actuation, in particular from the beginning to the end of the time interval, is different from the power outputs represented by the current application patterns in the time interval of actuation.
    • 本发明涉及具有定子和转子的电动机。 电动机还包括控制器,其中控制器连接到定子和/或转子,并被设计成将电流施加到用于旋转转子的定子和/或转子。 根据本发明,控制器包括设计用于控制电动机的功率输出的脉宽调制器,以便产生预定数量的不同的当前应用模式。 当前的应用模式各自表示电动机的功率输出,并且优选地包括电流脉冲的时间序列,每个电流脉冲具有电流脉冲持续时间。 控制器被设计成根据至少两个不同的当前施加模式向电动机施加电流,以在致动的时间间隔期间致动电动机,使得电动机的功率输出在时间上的平均时间 特别是从时间间隔的开始到结束的致动间隔与在致动的时间间隔中由当前应用模式表示的功率输出不同。