A method for operating a brushless electric motor, the windings being energized by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage at the outputs of the inverter, and a microcontroller for controlling the switch and for generating a pulse width modulated voltage supply for the windings are provided. A short-circuited switch causes a torque in the electric motor opposite the actuating direction of the electric motor. The method proposes that after detecting a short-circuited switch, the windings (U. V. W) are energized to generate a motor torque that is, on the whole, positive. An actuating period of the electric motor is divided into a plurality of sectors, wherein, in accordance with the defective switch, individual sectors are deactivated for the actuation of the windings (U, V, W), while other sectors are used to actuate the windings (V, W).
VERFAHREN ZUM BETRIEB EINES BÜRSTENLOSEN ELEKTROMOTORS
METHOD FOR OPERATING A BRUSHLESS ELECTRIC MOTOR
PROCÉDÉ POUR FAIRE FONCTIONNER UN MOTEUR ÉLECTRIQUE SANS BALAIS
2019-05-08
Patent
Electronic Resource
German
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
European Patent Office | 2020
|European Patent Office | 2022
|VERFAHREN UND VORRICHTUNG ZUM BETRIEB EINES BÜRSTENLOSEN MOTORS
European Patent Office | 2021
|Verfahren zum Betrieb eines Elektromotors in einem Fahrzeug
European Patent Office | 2017
|VERFAHREN UND SCHALTUNG FÜR DEN MEHRPHASIGEN BETRIEB EINES ELEKTROMOTORS
European Patent Office | 2020
|