The invention provides a control unit 1 which generates pulse width modulation (PWM) pulses for an inverter 2, in particular a drive train. The control unit has a noise reducer 3 configured to generate an opposing signal for active noise reduction. The noise reducer is configured to set a phase (deltatheta PWM) of the opposing signal as a function of a predefined PWM frequency (F) and/or rotational speed (omegam). The invention further relates to a drive train (10), to a motor vehicle (100) and to a method for operating a drive train (10).

    本发明提出一种控制单元(1),该控制单元用于产生用于逆变器(2)的、尤其驱动系(10)的逆变器(2)的PWM脉冲,该控制单元具有用于产生反信号以主动降噪的降噪装置(3),其中该降噪装置(3)被适配成用于根据预先给定的PWM频率(F)和/或转速(ωm)来设定该反信号的相位(ΔθPWM)。本发明还提出了一种驱动系(10)、一种机动车辆(100)以及一种用于运行驱动系(10)的方法。


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    Title :

    CONTROL UNIT, DRIVE TRAIN, METHOD FOR OPERATING DRIVE TRAIN AND MOTOR VEHICLE


    Additional title:

    控制单元、驱动系、用于运行驱动系的方法及机动车辆


    Contributors:

    Publication date :

    2022-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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