A method and device for operating a brushless electric motor, having windings controlled by an inverter using six switches. The inverter includes three outputs that are associated with the windings of the electric motor. A respective power semiconductor switch is arranged between the outputs of the inverter and the windings, and wherein a detection unit detects defective switches, a measuring unit measures the voltage at the outputs of the inverter, and a motor angle position sensor determines the motor angle position arc. The invention further relates to a device for operating a brushless electric motor. The inverter is switched off after a defective switch has been detected, such that no additional power is introduced in the windings of the electric motor. The motor angle position sensor consecutively opens the power semiconductor switches in a predetermined motor angle position.
VERFAHREN UND VORRICHTUNG ZUM BETRIEB EINES BÜRSTENLOSEN MOTORS
METHOD AND DEVICE FOR OPERATING A BRUSHLESS MOTOR
PROCÉDÉ ET DISPOSITIF PERMETTANT DE FAIRE FONCTIONNER UN MOTEUR SANS BALAIS
2021-02-24
Patent
Electronic Resource
German
VORRICHTUNG ZUR ANSTEUERUNG UND/ODER ÜBERWACHUNG EINES BÜRSTENLOSEN GLEICHSTROMMOTORS
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