Device and method for dynamically adjusting an operating voltage for an electric motor (9), which voltage is provided by a voltage source (1) formed in a modular manner, wherein modules (2-i) of the voltage source (1) formed in a modular manner are switched in dependence upon a rotational speed (n) of the electric motor (9) such that the overall degree of efficiency of the electric drive train is improved in a low rotational speed range of the electric motor (9), wherein the modules (2-i) of the voltage source (1) are switched by means of a switching network (3) which is composed of controllable power switches (5) and can be actuated by control signals which are generated by a switching controller (4) in dependence upon the rotational speed (n) of the electric motor (9).
VERFAHREN UND VORRICHTUNG ZUR DYNAMISCHEN EINSTELLUNG EINER BETRIEBSSPANNUNG FÜR EINEN ELEKTROMOTOR
METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING AN OPERATING VOLTAGE FOR AN ELECTRIC MOTOR
PROCÉDÉ ET DISPOSITIF PERMETTANT L'AJUSTEMENT DYNAMIQUE D'UNE TENSION DE FONCTIONNEMENT POUR UN MOTEUR ÉLECTRIQUE
2018-10-10
Patent
Electronic Resource
German
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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