Patent ID: 6472845
Filing Date: 2002-10-29
Classification: B60L,H02K,H02P,Y02T

Abstract:
A motor/generator device comprising:a stator; a first rotor associated with the stator; a second rotor associated with the stator; an inverter connected to the stator; and a microprocessor programmed to control the inverter to cause a composite electrical current of a first electrical current associated with a rotation of the first rotor and a second electrical current associated with a rotation of the second rotor, to flow between the inverter and the stator, wherein the composite electrical current has a composite waveform combining a waveform of the first electrical current and a waveform of the second electrical current while an average value of the composite electrical current is smaller than the sum of an average value of the first electrical current and an average value of the second electrical current.