METHOD AND CONTROL ARCHITECTURE FOR OPTIMIZATION OF ENGINE FUEL-CUT OFF SELECTION AND ENGINE INPUT TORQUE FOR A HYBRID POWERTRAIN SYSTEM

摘要

There is provided a method and article of manufacture for operating an internal combustion engine adapted to transmit torque to a hybrid transmission. The method comprises determining an engine input torque transmittable to the hybrid transmission for a plurality of engine states, the engine states comprising a fueled-engine operation and an engine fuel-cutoff operation. Costs are determined costs for operating the engine and hybrid transmission in the engine states to substantially meet an operator torque request. The engine state is controlled to one of the fueled-engine operation and the engine fuel-cutoff operation based upon the costs.