F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 47/00 (2006.01) F16H 61/04 (2006.01) F16H 61/00 (2006.01) F16H 61/08 (2006.01)
Patent
CA 2082009
An improved adaptive pressure control which accounts for nonlinearity in the relationship between fluid pressure and shift time. To account for nonlinearity in the relationship between cumulative shift time error and corrective pressure, the control utilizes an empirically derived table of shift time vs. controlled pressure to develop a raw pressure error in lieu of a shift time error. The adaptive pressure correction, in turn, is developed in relation to the cumulative pressure error. This removes the effect of system nonlinearity from the adaptive control, allowing more accurate adaptive convergence than was heretofore achieved.
Pollack Scott Bradley
Wanamaker Joseph Lee
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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