OPTIMAL SELECTION OF INPUT TORQUE CONSIDERING BATTERY UTILIZATION FOR A HYBRID ELECTRIC VEHICLE

A preferred input torque for a hybrid powertrain is determined within a solution space of feasible input torques in accordance with a plurality of powertrain system constraints that results in a minimum overall powertrain system loss. System power losses and battery utilization costs are calculated at feasible input torques and a solution for the input torque corresponding to the minimum total powertrain system loss is converged upon to determine the preferred input torque.