| 摘要 |
Multi-speed transmission comprising four planetary gear sets eight rotatable shafts and six shifting elements, whereas the sun gear of the first planetary gear set is connected to the input shaft, which is connected to the sun gear of the third planetary gear set and, through a first clutch, is connectable to the eighth shaft connected to the carrier or bar of the fourth planetary gear set, whereas the eighth shaft is connectable to the third shaft through a second clutch, which is connected to the carrier or bar of the third planetary gear set and is attachable to the carrier or bar of the first planetary gear set through a first brake, which is coupled to the housing of the transmission, whereas the fourth shaft is connected to the sun gear of the second planetary gear set and is attachable to the carrier or bar of the first planetary gear set through a second brake, and the seventh shaft is connected to the ring gear of the first planetary gear set and, through a third clutch, is connectable to the fifth shaft connected to the ring gear of the second planetary gear set and the sun gear of the fourth planetary gear set, whereas the sixth shaft is connected to the carrier or bar of the second planetary gear set and the ring gear of the third planetary gear set, the output shaft is connected to the ring gear of the fourth planetary gear set and whereas a fourth, fifth or sixth clutch is provided, through the closing of which the second planetary gear set can be blocked. |
