Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine

摘要

PPROBLEM TO BE SOLVED: To provide the permanent magnet rotary electric machine suppressing cogging torque and a torque pulsation while obtaining reluctance torque by an auxiliary magnetic pole and the electrically propelled vehicle using this permanent magnet rotary electric machine. PSOLUTION: A magnetic air gap is provided between the permanent magnet of a rotor and the auxiliary magnetic pole adjacent each other in a circumferential direction to the permanent magnet, so that a distribution change of magnetic flux density in the surface of the rotor is loosened to suppress the cogging torque and the torque pulsation. PCOPYRIGHT: (C)2004,JPO&NCIPI