Patent ID: 7748482
Filing Date: 2010-07-06
Classification: B60K,B60L,Y02T

Abstract:
1. An accessory drive system for a hybrid vehicle comprising: a direct current battery; an inverter operatively connected to the battery, said inverter configured to convert direct current from the battery into three-phase alternating current; an electrically variable transmission operatively connected to the inverter, the electrically variable transmission including a first motor/generator and a second motor/generator, each operable to drive the hybrid vehicle, the first motor/generator being a Y-connected three phase motor/generator that defines a first neutral point and the second motor/generator being a Y-connected three phase motor/generator that defines a second neutral point; and a third motor/generator connected to an accessory and to the first neutral point and the second neutral point, wherein output from the battery is transferable through said first neutral point and the second neutral point to the third motor/generator such that the accessory is drivable by either the first motor/generator or the second motor/generator at a selectable rate without sacrificing an output of the other of the first motor/generator and the second motor/generator.