The invention relates to a method for operating an electric drive system (1) comprising power electronics (2), in particular an electric current converter, and comprising an electric machine (3) which can be controlled by the power electronics (2), wherein: the drive system (1) can be operated at least in one working mode and in a freewheeling mode as operating modes; the power electronics (2) have at least three electrical phases for controlling the electric machine (3); at least one current value of an electric current of one of the phases is monitored; the current value is compared to a predefined threshold value; and an active short circuit is activated as a safe operating state of the power electronics (2) if the current value exceeds the threshold value. According to the invention, the electric drive system (1) is monitored as to whether its current operating mode is the freewheeling mode, and the predefined threshold value is lowered to a freewheeling threshold value if the current operating mode has been recognized to be the freewheeling mode.


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    Title :

    VERFAHREN ZUM BETREIBEN EINES ELEKTRISCHEN ANTRIEBSSYSTEMS, COMPUTERPROGRAMMPRODUKT, DATENTRÄGER UND ELEKTRISCHES ANTRIEBSSYSTEM


    Additional title:

    METHOD FOR OPERATING AN ELECTRIC DRIVE SYSTEM, COMPUTER PROGRAM PRODUCT, DATA CARRIER AND ELECTRIC DRIVE SYSTEM
    PROCÉDÉ POUR FAIRE FONCTIONNER UN SYSTÈME D'ENTRAÎNEMENT ÉLECTRIQUE, PRODUIT PROGRAMME INFORMATIQUE, SUPPORT DE DONNÉES ET SYSTÈME D'ENTRAÎNEMENT ÉLECTRIQUE



    Publication date :

    2024-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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