Patent ID: 8424625
Filing Date: 2013-04-23
Classification: B60K,B60L,B60W,B60Y,H02K,Y02T

Abstract:
1. A transaxle comprising: an axle; and a multiple motor generator unit including first and second motor generators for driving the axle, the multiple motor generator unit including: a common rotor shaft drivingly connected to the axle, armature windings serving as a first stator and a second stator aligned opposite each other in the axial direction of the rotor shaft, a common rotor member, wherein the rotor shaft serves as a rotary axis of the rotor member and is rotatably integral with the rotor member, and permanent magnets provided on the common rotor member, so as to serve as a first rotor facing the first stator, and a second rotor facing the second stator, wherein the first stator and the first rotor constitute the first motor generator, wherein the second stator and the second rotor constitute the second motor generator, wherein the first stator and the second stator can be independently supplied with electric power so that, when at least one of the first and second stators is supplied with electric power, the corresponding first or second motor generator functions as a motor and outputs a torque to rotate the rotor member and the rotor shaft, and wherein a total motor output torque of the first and second motor generators for rotating the rotor member and the rotor shaft can be changed in correspondence to a load applied from the axle to the rotor shaft.