The invention relates to a method for operating an electric machine in the form of a synchronous motor of a motor vehicle, which electric machine can be operated in a power-loss-optimized, efficient operating mode and in a power-loss-increased, inefficient operating mode, in an efficient operating mode, the synchronous electric machine is set in such a way that a stator of the synchronous electric machine generates a synchronous rotating field which rotates synchronously with a rotor of the synchronous electric machine in order to provide an operating point-specific torque, and in order to increase the heat loss of the synchronous electric machine which can be used to heat at least one component to be heated of the motor vehicle, according to the invention, the synchronous electric machine is switched into a low-efficiency operating mode in which a synchronous rotating field is loaded with an asynchronous rotating field which superimposes the fundamental waves of the synchronous rotating field with higher harmonics with increased heat loss while maintaining a specific operating point torque.

    本发明涉及一种用于运行机动车同步电机形式的电机的方法,所述电机能在损耗功率优化的、高效运行模式和损耗功率提高的、低效运行模式中运行,在所述方法中,同步电机在高效运行模式中为了提供工作点特定的转矩被调节为使得同步电机的定子产生与同步电机的转子同步旋转的同步旋转场,并且为了提高同步电机的能用于加热该机动车的至少一个要加热的构件的损耗热量,将同步电机转换到低效运行模式中,在所述低效运行模式中,同步旋转场加载异步旋转场,所述异步旋转场在保持工作点特定的转矩的情况下将同步旋转场的基波与损耗热量提高的高次谐波叠加。


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    Title :

    Method and system for operating electric machine of motor vehicle, and motor vehicle


    Additional title:

    用于运行机动车的电机的方法、系统以及机动车


    Contributors:

    Publication date :

    2022-05-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    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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