The invention relates to a method for operating an electric machine (9) comprising a rotatably mounted rotor (10) and at least one motor winding (13). In said method, a temperature load of the machine (9) is ascertained, and an electric motor current is applied to the motor winding (13) to generate a specified desired torque (Ndesired) according to the temperature load. According to the invention, when a temperature load is ascertained that exceeds a specified load threshold, a field strengthening mode of the machine (9) is activated, in which field-strengthening mode the motor winding (13) is energized in such a way that the motor current has a positive field-forming current component (Id).
METHOD FOR OPERATING AN ELECTRIC MACHINE, DEVICE, ELECTRIC MACHINE, AND MOTOR VEHICLE
04.01.2024
Patent
Elektronische Ressource
Englisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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