Patent ID: 8396634
Filing Date: 2013-03-12
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. Method for controlling a powertrain system including an engine mechanically coupled to an electro-mechanical transmission selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states, comprising: determining a current transmission operating range state for the electromechanical transmission and engine state for the engine; determining at least one potential transmission operating range state and engine state; providing an operator torque request; determining preferability factors associated with the current transmission operating range state and engine state, and potential transmission operating range states and engine states; preferentially weighting the preferability factors for the current transmission operating range state and engine state; and selectively commanding changing the current transmission operating range state of the electromechanical transmission and engine state of the engine based upon said preferability factors and said operator torque request.