An electric motor apparatus having a controller and a torque demand signal modifier. The controller may produce a set signals to a drive stage of the motor where the drive stage applies a voltage to each phase of the motor to cause currents to flow in each phase of the motor corresponding to a current demand signal fed into the controller. The torque demand signal modifier may receive a target torque demand signal representative of a target torque demanded from the motor and outputs an actual torque demand signal which is converted into the current demand signal that is fed to the controller. The actual torque demand increases in value as a function of time towards the target torque demand value following a predefined ramp selected to ensure that the maximum current gradient of the current demand does not exceed a predetermined limit.


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    Titel :

    Electric motor apparatus


    Beteiligte:

    Erscheinungsdatum :

    16.11.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge



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