The invention relates to a method for operating a high-voltage energy storage unit (10) which comprises a main control device (12) and several interconnected battery cells (12) which are connected to the main control device (12) by means of at least one line (16) and at least some of which are connected to a respective cell monitoring apparatus (18) which is, in each case, designed to detect at least one respective cell parameter and to transmit same to the main control device (12), said method comprising the following steps: - detecting the communication between the main control device (12) and the respective cell monitoring apparatus (18); - modulating a load of at least one battery cell (14) if the cell parameter is not transmitted and/or if there is no confirmation following transmission; - detecting the modulation by a voltage measurement of the main control device (12) on the line (16); and - specifying an operating state of the high-voltage energy storage unit (10) depending on the type of modulation. The invention also relates to a high-voltage energy storage unit (10) and to a motor vehicle.


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    Title :

    VERFAHREN ZUM BETREIBEN EINES HOCHVOLT-ENERGIESPEICHERS, HOCHVOLT-ENERGIESPEICHER SOWIE KRAFTFAHRZEUG


    Additional title:

    METHOD FOR OPERATING A HIGH-VOLTAGE ENERGY STORAGE UNIT, HIGH-VOLTAGE ENERGY STORAGE UNIT AND MOTOR VEHICLE
    PROCÉDÉ DE FONCTIONNEMENT D'UNE UNITÉ DE STOCKAGE D'ÉNERGIE HAUTE TENSION, UNITÉ DE STOCKAGE D'ÉNERGIE HAUTE TENSION ET VÉHICULE AUTOMOBILE


    Contributors:

    Publication date :

    2024-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung