Patent ID: 9738285
Date: 2017-08-22
CPC Classifications: B60W,F02D

Claim:
1. A method of controlling a transmission of a vehicle, the method compromising: determining if an internal combustion engine of the vehicle is currently operating with active fuel management, in which a portion of a total number of cylinders of the internal combustion engine are deactivated, or if the internal combustion engine is currently operating without active fuel management, in which all of the cylinders of the internal combustion engine are active, with a vehicle controller; determining if a possible engine torque, which is an amount of engine torque that may be produced by the internal combustion engine while the internal combustion engine is currently operating with active fuel management, is equal to or greater than a required engine torque, which is an amount of engine torque required from the internal combustion engine to maintain an axle torque when the transmission is upshifted from a current gear ratio to a higher gear ratio, or if the possible engine torque is less than the required engine torque, with the vehicle controller; upshifting the transmission, in which a gear ratio of the transmission is changed from the current gear ratio to the higher gear ratio, when the internal combustion engine is currently operating with active fuel management, and when the possible engine torque is equal to or greater than the required engine torque; changing the current operation of the internal combustion engine from operating with active fuel management to operating without active fuel management, when the possible engine torque is less than the required engine torque, so that the internal combustion engine is currently operating without active fuel management; and upshifting the transmission from the current gear ratio to the higher gear ratio, when the internal combustion engine is currently operating without active fuel management.