Patent ID: 7479088

Claim:
A transmission device ( 1 ) for distributing drive torque to at least two drive output shafts ( 7 , 8 ), the transmission device ( 1 ) comprising: a first planetary gearset ( 2 ) having a first shaft ( 4 ) connected to a drive input shaft ( 6 ), a second shaft ( 7 ) being one of the at least two drive output shafts ( 7 , 8 ) and a third shaft ( 9 ) which is in active communication with a first brake ( 19 ); and a second planetary gearset ( 3 ) having a fourth shaft ( 5 ) connected to the drive input shaft ( 8 ), a fifth shaft ( 8 ) being another of the at least two drive output shafts ( 7 , 8 ) and a sixth shaft ( 10 ) which is in active communication with a second brake ( 20 ), the third shaft ( 9 ) communicates with the first brake ( 19 ) and the sixth shaft ( 10 ) communicating with the second brake ( 20 ) so that a degree of distribution of the drive torque, between the at least two drive output shafts ( 7 , 8 ), varies as a function of transfer capacities of the first and the second brakes ( 19 , 20 ) the second shaft ( 7 ) being solely driven by the first planetary gearset ( 2 ) and the fifth shaft ( 8 ) being solely driven by the second planetary gearset ( 3 ) without any sun gear or carrier of the first planetary gearset ( 2 ) being connected with any sun gear or carrier of the second planetary gearset ( 3 ).