Improvements in or relating to automotive transmissions

Details Improvements in or relating to automotive transmissions Improvements in or relating to automotive transmissions

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 59/20 (2006.01) F16H 59/26 (2006.01) F16H 61/24 (2006.01)

Patent

CA 2527228

A transmission control method improves shift feel during kickdown shifts. The release clutch is fully released at the initiation of the kickdown shift. The release clutch is then reapplied when the volume of the release clutch reaches a threshold capacity. The volume of the release clutch is slowly ramped down, thereby increasing turbine speed. When the turbine speed reaches a threshold, the apply clutch is actuated. The apply clutch is actuated by controlling the volume of the apply clutch according to a target volume.

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