Provided are a motor control device (1) for controlling a motor (2) having a plurality of phases, for quickly and accurately detecting a phase in which an open-state fault has occurred when the open-state fault occurs in a target phase and an electric power steering device using the same. When a power-supply voltage (Vb) is equal to or higher than a predetermined voltage (Vthr), a motor rotation speed (É) is equal to or lower than a predetermined speed (Éthr), a target x-phase voltage command (Vx*) is not in the vicinity of zero, a current (Ix) of the target x-phase is equal to or lower than a predetermined current (Iu_thr), and a state in which a control error is equal to or larger than a predetermined error is detected over a predetermined time period or longer, occurrence of an open-state fault in the target phase is determined.
MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE USING SAME
MOTORSTEUERUNGSVORRICHTUNG UND ELEKTRISCHE SERVOLENKVORRICHTUNG DAMIT
DISPOSITIF DE COMMANDE DE MOTEUR ET DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE QUI UTILISE CE DERNIER
28.11.2018
Patent
Elektronische Ressource
Englisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B62D MOTOR VEHICLES , Motorfahrzeuge |
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