A torque transfer mechanism and a control system are disclosed for adaptively controlling the transfer of drive torque between first and second rotary members in a power transmission device of the type used in motor vehicle driveline applications. The torque transfer mechanism includes a main clutch assembly operably disposed between the first and second rotary members, a pilot clutch assembly and a clutch operator assembly. The clutch operator assembly includes a rotary cam driven by an electric motor and a pivotal mode fork.