Patent ID: 9156346
Filing Date: 2015-10-13
Classification: B60K,B60W,Y02T,Y10T

Abstract:
1. A transmission system for a four wheel drive hybrid electric vehicle, comprising: an input shaft selectively connected to a front wheel transmission housing while being connected to an output shaft of an engine; a first motor/generator having motor and generator functions and disposed in the front wheel transmission housing; a second motor/generator having motor and generator functions and connected to a rear wheel output gear disposed in a rear wheel transmission housing; a planetary gear set on the input shaft and including three rotating elements, in which among three rotating elements, a first rotating element is directly connected to the first motor/generator and selectively connected to the input shaft, a second rotating element is directly connected to the input shaft, and a third rotating element is selectively connected to a front wheel output gear; and a connection unit disposed at a selective connection part.