Method and apparatus for performing an asynchronous clutch-to-clutch switch in a hybrid transmission
A hybrid transmission comprising a first and second electrical machine. A method of operating the hybrid transmission in response to a command, a switch from a continuously variable output mode to a continuously variable target mode execute, comprises increasing torque of the on-coming clutch associated with the operation in the continuously variable target mode, and a corresponding reducing a torque of an off-going clutch associated with the operation in the continuous output mode. When deactivating the off-going clutch torque outputs of the first and second electric machine and the torque of the on-coming clutch are controlled in order to synchronize the on-coming clutch. When synchronization of the on-coming clutch torque of the on-coming clutch is increased and the transmission is operated in the continuously variable target mode.