Patent ID: 8096920
Filing Date: 2012-01-17
Classification: B60W,F02D,Y10T

Abstract:
1. A method of operating a propulsion system for a vehicle, said propulsion system including an internal combustion engine coupled to one or more drive wheels of the vehicle via a transmission, the method comprising: operating the engine to produce an engine output; transferring the engine output to said one or more drive wheels via the transmission; and adjusting a number of strokes performed by the engine per combustion cycle while shifting the transmission between different gear ratios, where said adjusting the number of strokes performed by the engine per combustion cycle is initiated after said shifting between the different gear ratios is initiated and before completion of said shifting between the different gear ratios; and where said adjusting the number of strokes performed by the engine per combustion cycle is completed after said shifting between the different gear ratios is completed.