Patent ID: 7384374
Filing Date: 2008-06-10
Classification: F16H,Y10T

Abstract:
1. A method for shifting a transmission from a current gear to a target gear following a release of an accelerator pedal, the transmission having first and second clutches for alternately connecting and disconnecting a power source and first and second input shafts, respectively, first couplers for alternately connecting and disconnecting a transmission output and a first set of gears driveably connected to the first clutch, and second couplers for alternately connecting and disconnecting the output and a second set of gears driveably connected to the second clutch, comprising the steps of: (a) stroking the first and second clutches to zero torque capacity; (b) using a first coupler to maintain a drive connection between the output and the current gear; (c) determining a target gear; (d) using the target gear to determine a preselected gear; (e) actuating a coupler to produce a drive connection between the output and the preselected gear; and (f) engaging one of the first and second clutches such that said clutch driveably connects the power source to the output through said coupler and preselected gear.