An electric drive system for a vehicle. The electric drive system includes an inverter having at least one phase leg, wherein a first of the phase legs includes a first power switch; an internal voltage supply configured to generate a) an internal supply voltage regulated with respect to a voltage on a rail configured to be coupled to a dc power supply, and b) a second voltage, wherein the internal voltage supply is configured to reduce a voltage difference between the internal supply voltage and the second voltage in response to a signal indicating a shut-down or a fault of the vehicle; and a gate drive channel configured to drive the first power switch into conductance by applying the voltage difference between the internal supply voltage and the second voltage between a control terminal and a main terminal of the power switch, gate drive channel configured to continue the driving of the first power switch for a time window after the signal indicating the shut-down or the fault of the vehicle.


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    Title :

    ACTIVE DISCHARGE OF AN ELECTRIC DRIVE SYSTEM


    Additional title:

    AKTIVE ENTLADUNG EINES ELEKTROANTRIEBSSYSTEMS
    DÉCHARGE ACTIVE D'UN SYSTÈME D'ENTRAÎNEMENT ÉLECTRIQUE


    Contributors:

    Publication date :

    2022-08-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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