F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
342/27, 341/39,
F16H 61/06 (2006.01) F16H 61/00 (2006.01) F16H 61/02 (2006.01) F16H 61/08 (2006.01)
Patent
CA 1241093
D-9330 C-3756 ADAPTIVE DIRECT PRESSURE SHIFT CONTROL FOR A MOTOR VEHICLE TRANSMISSION Abstract of the Disclosure An adaptive shift control system for regulating the operation of a fluid operated torque establishing device associated with a specified speed ratio in a motor vehicle automatic transmission. Shifting from a currently engaged speed ratio to the specified speed ratio includes a completion phase during which fluid is supplied to the torque establishing device in accordance with a predetermined pressure schedule to initiate and progressively increase the transmission of torque therethrough. The time required to complete a specified portion of the speed ratio progression is identified and compared to a reference time representative of the time required to complete the progression when the shift quality is not degraded. The predetermined pressure schedule is adjusted based on such comparison so as to adaptively compensate for sources of error which affect the increase of torque transmission through the torque establishing device during the completion phase and cause the shift quality to be degraded.
519240
Downs Robert C.
Nitz Larry T.
Wanamaker Joseph L.
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
Adaptive direct pressure shift control for a motor vehicle... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive direct pressure shift control for a motor vehicle..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive direct pressure shift control for a motor vehicle... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1199277