Patent ID: 7518279
Filing Date: 2009-04-14
Classification: H02K,Y02T

Abstract:
1. An electric motor system for use in a vehicle, comprising: a first inverter; a second inverter; a motor electrically coupled to the first and the second inverters, the motor comprising: a stator including a plurality of slots formed therein; and a plurality of windings disposed at least partially in the slots and including a first winding comprising a first coil and a second coil, at least a portion of the first winding first coil disposed in a first pair of non-adjacent slots and a second pair of non-adjacent slots, where a first slot of the second pair of non-adjacent slots is located adjacent a first slot of the first pair of non-adjacent slots and a second slot of the second pair of non-adjacent slots is adjacent a second slot of the first pair of non-adjacent slots, at least a portion of the first winding second coil disposed in the first and the second pairs of non-adjacent slots over the first winding first coil, the first coil having a first number of turns, the second coil having a second number of turns that is unequal to the first number of turns, the first coil of each winding electrically coupled to the first inverter, and the second coil of each winding electrically coupled to the second inverter.