To lighten reduction in motor output torque occurring when power supply current supplied from a power supply to a motor is limited to a predetermined upper limit value or lower. A motor control device (30) including: a power supply voltage detection unit (64) configured to detect a power supply voltage; a rotational angular velocity detection unit (50) configured to detect a rotational angular velocity of the motor; a command value calculation unit (40) configured to calculate a q-axis current command value and a d-axis current command value; a gain computation unit (51) configured to compute, based on an upper limit value of power supply current supplied from a power supply to the motor, the power supply voltage, the rotational angular velocity, the q-axis current command value, and the d-axis current command value, a limit gain reducing the power supply current to the upper limit value or lower by limiting the q-axis current command value and the d-axis current command value; and a driving circuit (48) configured to drive the motor, based on the q-axis current command value and the d-axis current command value limited by the limit gain.
MOTOR CONTROL DEVICE, ELECTRIC ACTUATOR PRODUCT, AND ELECTRIC POWER STEERING DEVICE
MOTORSTEUERVORRICHTUNG, ELEKTRISCHES AKTORPRODUKT UND ELEKTRISCHE SERVOLENKUNG
DISPOSITIF DE COMMANDE DE MOTEUR, PRODUIT D'ACTIONNEUR ÉLECTRIQUE, ET DISPOSITIF DE DIRECTION À ASSISTANCE ÉLECTRIQUE
2022-02-16
Patent
Elektronische Ressource
Englisch
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