Patent ID: 7785221
Filing Date: 2010-08-31
Classification: B60K,B60W,F16H,Y02T,Y10T

Abstract:
1. A transmission unit for a motor vehicle, comprising: a drive shaft ( an output shaft ( a change speed gearbox ( an additional drive motor ( a planetary transmission ( wherein the additional drive motor ( 23 ) is coupled to a first part ( 35 ) of the planetary transmission and the output shaft is coupled to a second part ( 37 ) of the planetary transmission, characterized in that the change speed gearbox ( 21 ) has at least one first selectable gear stage ( 3 , 5 ) via which the drive shaft ( 11 ) of the transmission unit can be operationally coupled directly to the output shaft ( 15 ) while bypassing the planetary transmission; and in that the change speed gearbox has at least one second selectable gear stage ( 1 , 2 , 4 , 6 ) via which the drive shaft ( 11 ) can be operationally coupled indirectly to the output shaft ( 15 ) via a third part ( 39 ) of the planetary transmission.