Patent ID: 11863095
Assignee: KIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A motor driving device that drives a motor having a plurality of windings corresponding to a plurality of phases, the motor driving device comprising:
a first inverter configured to include a plurality of first switching elements and connected to first stages of the plurality of windings;
a second inverter configured to include a plurality of second switching elements and connected to second stages of the plurality of windings;
a plurality of third switching elements, first ends of which are connected to points dividing the number of turns of the plurality of windings at a preset ratio and second ends of which are interconnected; and
a controller configured to turn off the third switching elements if a required output of the motor is more than or equal to a preset reference value, and operate the first inverter and the second inverter in a space vector pulse width modulation mode by fixing switching states of the second switching elements which has larger switching loss than the first switching elements and switching the first switching elements to compose target voltage vectors.