Shift enable control method/system

Details Shift enable control method/system Shift enable control method/system

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 63/44 (2006.01) F16H 59/14 (2006.01) F16H 61/02 (2006.01) F16H 61/16 (2006.01) F16H 59/48 (2006.01) F16H 61/04 (2006.01) F16H 61/70 (2006.01)

Patent

CA 2099551

A control system/method for an at least partially automated mechanical transmission system (10) is provided for determining if selected upshifts into a target gear ratio are acceptable (208) or not acceptable (210) under current vehicle operating conditions and for prohibiting the initiation of not acceptable selected upshifts. An upshift is deemed acceptable if the available drivewheel torque (206) in the target ratio is sufficient to maintain at least a minimum acceptable vehicle acceleration (A0) after the upshift under current vehicle operating conditions.

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