F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 61/14 (2006.01) F16H 61/06 (2006.01) F16H 61/08 (2006.01) F16H 61/28 (2006.01) F16H 59/68 (2006.01) F16H 61/00 (2006.01)
Patent
CA 2064308
OPEN-LOOP CLUTCH-TO-CLUTCH UPSHIFT CONTROL HAVING CLUTCH OVERLAP REGULATION Abstract of the Disclosure An open-loop clutch-to-clutch shift control system wherein the overlap between off-going and on-coming clutches in an upshift is regulated in accordance with a confidence term determined through a self-estimation by the control system of its ability to accurately determine the on-coming clutch fill time, and thus, its ability to effect a precise exchange of the off-going and on-coming clutches with little or no overlap. Under certain conditions, the confidence level is assumed to be low, and the clutches are controlled to result in a relatively high level of overlap. As the level of confidence improves, the timing of the clutch exchange is adjusted to reduce the level of overlap. When the level of confidence is high, the exchange of clutches is effected with almost no overlap.
Milunas Rimas Stasys
Nitz Larry Theodore
Gowling Lafleur Henderson Llp
Saturn Corporation
LandOfFree
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