Patent ID: 7824295
Filing Date: 2010-11-02
Classification: F16H

Abstract:
1. A power-branched, continuously variable vehicle transmission comprising: a transmission input shaft and a transmission output shaft; a planetary gear train operatively connected to the transmission input shaft; a variable speed drive unit operatively connected between the planetary gear train and the transmission output shaft; a multistage gearbox operatively connected between the variable speed drive unit and the transmission output shaft; wherein the gearbox includes a first gearbox drive shaft operatively connected to a first variable speed drive unit drive shaft and includes a second gearbox drive shaft operatively connected to the transmission output shaft and to a second variable speed drive unit drive shaft; wherein the first gearbox drive shaft carries a plurality of gears that mesh with associated gears carried by the second gearbox drive shaft; a forward clutch for coupling gears carried by the first and second gearbox shafts for selecting a forward gear range; and a reverse clutch for coupling respective gears carried by the first and second gearbox drive shafts for selecting a reverse gear.