| 摘要 |
A method of operating a power-branched transmission (10) is provided. The transmission comprises an input shaft (11) and an output shaft (23), an epicyclic gearing (13) having first, second and third gear elements (16, 17, 18) each being connected to either the input shaft or the output shaft, wherein the input shaft and the output shaft are each connected to at least one of the first, second and third gear elements. The transmission further comprises a drive connection (24) between a fourth gear element (19) of the epicyclic and the input shaft, the connection serving to drive the fourth gear element from the input shaft in a continuously variable manner to provide a CVT. The method comprises selectively locking two of the first, second and third gear elements relative to one another to provide a direct driving relationship between the input shaft and the output shaft whilst disconnecting the drive connection. By selectively locking out the CVT part of the transmission in this way, a driver can retrieve a high torque output when required. |
