US 7,585,249 B2
Apparatus and method to control transmission torque output during a gear-to-gear shift
Jy-Jen F. Sah, West Bloomfield, Mich. (US)
Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US)
Filed on Jun. 30, 2006, as Appl. No. 11/428,030.
Prior Publication US 2008/0004779 A1, Jan. 03, 2008
Int. Cl. B60K 1/02 (2006.01)
U.S. Cl. 477—3 22 Claims
OG exemplary drawing
 
1. Article of manufacture, comprising a storage medium having a computer program encoded therein for effecting a method to control torque output from a transmission device during a gear-to-gear shifting event when an off-going torque-transfer device is disengaged, the program comprising:
code comprising a predetermined preferred torque output from the transmission device;
code to control torque output from each of a plurality of torque-generative devices operative to transmit motive torque to the transmission device; and,
code to control torque transmitted across a selectively actuated torque transfer device.