Patent ID: 7999501
Filing Date: 2011-08-16
Classification: B60L,H02K,H02P,Y02T

Abstract:
1. A motor controller for an axial-gap motor equipped with a rotor having a permanent magnet, two stators provided on both sides of the rotor in the axial direction of the rotor, and armature windings wrapped around of the two stators, respectively, the motor controller comprising: a field current control means for adjusting a field current of a current passed through the armature windings of at least one of the two stators so as to restrain a thrust force acting on the rotor in the axial direction of the rotor, wherein the field current control means adjusts the field currents of the armature windings of the two stators by adding field current components in a field weakening direction to the field currents of the armature windings of the two stators when a thrust force attributable to a magnetic flux generated from the permanent magnet acts on the rotor.