Patent ID: 8074755
Filing Date: 2011-12-13
Classification: B60K,B60L,H02K,H02P,Y02T,Y10S

Abstract:
1. A hybrid vehicle comprising: an engine; a first electric motor including a stator, a first rotor and a second rotor relatively rotatable with respect to said stator, one of said first rotor and said second rotor being mechanically connected to said engine; and first drive wheels mechanically connected to the other of said first rotor and said second rotor of said first electric motor, wherein said stator includes a first armature row formed by a plurality of first armatures arranged side by side in a circumferential direction, for generating a first rotating magnetic field rotating in a predetermined rotating direction, by magnetic poles generated on said first armatures along with supply of electric power, and a second armature row formed by a plurality of second armatures arranged side by side in the circumferential direction, for generating a second rotating magnetic field rotating in the predetermined rotating direction, by magnetic poles generated on said second armatures along with supply of electric power, wherein said first rotor includes a first magnetic pole row which is formed by a plurality of first magnetic poles arranged in the circumferential direction, each two adjacent ones of said first magnetic poles having polarities different from each other, and is arranged in a manner opposed to said first armature row, and a second magnetic pole row which is formed by a plurality of second magnetic poles arranged in the circumferential direction, each two adjacent ones of said second magnetic poles having polarities different from each other, and is arranged in a manner opposed to said second armature row, wherein said second rotor includes a first soft magnetic material element row formed by a plurality of first soft magnetic material elements arranged in the circumferential direction at predetermined intervals, and is arranged between said first armature row and said first magnetic pole row, and a second soft magnetic material element row formed by a plurality of second soft magnetic material elements arranged in the circumferential direction at predetermined intervals, and is arranged between said second armature row and said second magnetic pole row, wherein when each magnetic pole of said first armature and each said first magnetic pole are opposed to each other, each magnetic pole of said second armature and each said second magnetic pole are opposed to each other; when each magnetic pole of said first armature and each said first magnetic pole opposed to each other have polarities different from each other, each magnetic pole of said second armature and each said second magnetic pole opposed to each other have a same polarity; and when each magnetic pole of said first armature and each said first magnetic pole opposed to each other have a same polarity, each magnetic pole of said second armature and each said second magnetic pole opposed to each other have polarities different from each other, and wherein when each magnetic pole of said first armature and each said first magnetic pole are opposed to each other, if each said first soft magnetic material element is in a position between said magnetic pole of said first armature and each said first magnetic pole, each said second soft magnetic material element is in a position between circumferentially adjacent two pairs of said magnetic poles of said second armatures and said second magnetic poles, and if each said second soft magnetic material element is in a position between said magnetic pole of said second armature and said second magnetic pole, each said first soft magnetic material element is in a position between circumferentially adjacent two pairs of said magnetic poles of said first armatures and said first magnetic poles.