Patent ID: 8738254

Claim:
A method for a non-synchronous automatic transmission having gearing defining multiple torque flow paths from an input shaft to an output shaft and further having a one-way coupling and an on-coming clutch (“OCC”) for shifting from a low gear configuration to a high gear configuration during a ratio up-shift event having a preparatory phase, a torque phase, and an inertia phase, the method comprising: during the up-shift event, measuring input torque using an input torque sensor in communication with the input shaft; determining a target input torque profile for the torque phase and a target input torque profile for the inertia phase each based on the input torque measured during the preparatory phase; during the torque phase raising the torque capacity of the OCC and controlling an engine torque to cause the input torque to achieve the target input torque profile for the torque phase; and during the inertia phase, controlling the OCC to cause the input torque to achieve the target input torque profile for the inertia phase.