Patent ID: 6557656
Filing Date: 2003-05-06
Classification: B60K,B60W,F16H,Y02T,Y10S

Abstract:
A driving system comprising:an engine; a plurality of motor-generators; and a plurality of planetary gear sets, wherein rotating output axes of said plurality of motor-generators are disposed parallel to and opposite to a rotating output axis of said engine, a distance Lf1 projected in an axial direction between an end in a side of the rotating output axis of a first motor-generator having the largest dimension in a direction of the rotating output axis among said plurality of motor-generators and an end in a side of the rotating axis of the engine is equal to or smaller than a distance Lfi (i=2, 3, . . . ) projected in the axial direction between an end in a side of the rotating output axis of each of the other motor-generators excluding the first motor-generator and the end in the side of the rotating axis of the engine, and a distance Le1 projected in an axial direction between an end in an opposite side of the rotating output axis of a first motor-generator having the largest dimension in a direction of the rotating output axis among said plurality of motor-generators and an end in a side of the rotating axis of the engine is equal to or larger than a distance Lei (i=2, 3, . . . ) projected in the axial direction between an end in an opposite side of the rotating output axis of each of the other motor-generators excluding the first motor-generator and the end in the side of the rotating axis of the engine.