F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 61/06 (2006.01) F16H 59/38 (2006.01) F16H 59/46 (2006.01) F16H 61/04 (2006.01) F16H 61/684 (2006.01)
Patent
CA 2043607
COAST-SYNC-COAST DOWNSHIFT CONTROL METHOD FOR CLUTCH-TO-CLUTCH TRANSMISSION SHIFTING Abstract of the Disclosure A coast-sync-coast control method for clutch-to-clutch shifting in which an engine control is employed to synchronize the engine speed with the transmission input speed at a point where the input speed would otherwise exceed the engine speed. The shift is referred to as a coast-sync-coast shift since (1) it is initiated at a coast condition where the input speed is higher than the engine speed, (2) it is completed at a synchronous condition where the speed differential across the on-coming clutch is at or near zero, and (3) a coast condition recurs immediately after the shift.
Bolander William Joseph
Milunas Rimas Stasys
Nitz Larry Theodore
Gowling Lafleur Henderson Llp
Saturn Corporation
LandOfFree
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