Patent ID: 6949856

Claim:
A permanent magnet rotating electric machine for a vehicle, comprising: a stator having stator windings wound concentratively; a rotor held rotatably inside said stator and having a rotor core formed of a plurality of laminated steel plates; a plurality of holes arranged circumferentially about said rotor core radially inwardly from a perimeter in a radial direction thereof; a plurality of permanent magnets arranged in said plurality of holes with alternately reversing polarity at each pole respectively; magnetic pole piece areas provided at said rotor core, radially outward of said permanent magnets; auxiliary magnetic pole areas disposed at said rotor core, between said permanent magnets of said pole so as to generate a reluctance torque; wherein, said stator and rotor are configured so as to generate a rotational torque based on a torque generated by said permanent magnets and on said reluctance torque; said stator windings generate magnetic flux by receiving current that is controlled in response to a position of said permanent magnets of said rotor; and said auxiliary magnetic pole areas generate said reluctance torque by said magnetic flux generated by said stator windings.