A multiphase electric motor is disconnectable from a DC voltage source by way of a control unit. Phase windings with connection lines can each be alternately connected via a high-side and a low-side switching element to a respective pole of the DC voltage source, and the connection lines each have a device for disconnecting the phase windings from the DC voltage source upon a fault. The control unit may monitor the switching elements for short-circuit faults, switch off the switching elements when a fault occurs, determine whether the switching element causing the fault is a high-side or a low-side switching element, switch on at least a second of the high-side or correspondingly at least a second of the low-side switching elements in addition to the switching element causing the fault to brake the electric motor, switch off the switching elements after a braking period, and open the phase disconnection devices.
VERFAHREN ZUM TRENNEN EINES MEHRPHASIGEN ELEKTROMOTORS EINER ELEKTROMECHANISCHEN KRAFTFAHRZEUGSERVOLENKUNG VON EINER GLEICHSPANNUNGSQUELLE UND STEUEREINHEIT ZUM ANSTEUERN DES ELEKTROMOTORS
METHOD FOR DISCONNECTING A MULTI-PHASE ELECTRIC MOTOR OF AN ELECTROMECHANICAL MOTOR VEHICLE POWER STEERING SYSTEM FROM A DIRECT VOLTAGE SOURCE, AND CONTROL UNIT FOR CONTROLLING THE ELECTRIC MOTOR
PROCÉDÉ PERMETTANT DE SÉPARER D'UNE SOURCE DE TENSION CONTINUE UN MOTEUR ÉLECTRIQUE POLYPHASÉ D'UNE DIRECTION ASSISTÉE ÉLECTROMÉCANIQUE D'UN VÉHICULE À MOTEUR ET UNITÉ DE COMMANDE SERVANT À L'ACTIVATION DU MOTEUR ÉLECTRIQUE
2023-06-21
Patent
Electronic Resource
German
Verfahren zum Schutz eines Sicherheitsschalters einer Steuereinheit eines Elektromotors
European Patent Office | 2021
|VERFAHREN ZUM SCHUTZ EINES SICHERHEITSSCHALTERS EINER STEUEREINHEIT EINES ELEKTROMOTORS
European Patent Office | 2021
|VERFAHREN ZUM SCHUTZ EINES SICHERHEITSSCHALTERS EINER STEUEREINHEIT EINES ELEKTROMOTORS
European Patent Office | 2023
|