Patent ID: 11942889
Assignee: HITACHI ASTEMO, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. A motor control device comprising:
an inverter which supplies U-phase, V-phase, and W-phase currents to a motor;
a torque limit calculation unit which calculates a torque limit from a current limit of a secondary battery that supplies a DC current to the inverter;
a first torque calculation unit which calculates first torque based on the DC current supplied to the inverter;
a second torque calculation unit which calculates second torque based on the U-phase, V-phase, and W-phase currents; and
a torque limit correction unit which corrects the torque limit using the first torque and the second torque,
wherein the torque limit correction unit decreases the corrected torque limit by current feedback control when the DC current input to the inverter exceeds the current limit.