Patent ID: 7680575

Claim:
A method of determining a gear ratio of a transmission that has N gear ratios, where N is an integer, comprising: generating a driver input position value; selecting an operating mode of said transmission from a plurality of operating modes, each of said operating modes having different gear ratio selection criteria, based on said driver input position value, wherein said operating modes include a maximum performance mode, a power mode, a coast mode and a fuel economy mode; selecting to one of up-shift and down-shift said transmission; determining M ones of said N gear ratios that satisfy gear ratio selection criteria of said selected operating mode and that are associated with said selected one of said up-shift and said down-shift, where M is an integer greater than 1 and less than or equal to N; selecting a gear ratio of said M ones of said N gear ratios; and performing said selected one of said up-shift and said down-shift based on said selected gear ratio of said M ones of said N gear ratios.