Automatic shift preselection mode for mechanical...

Details Automatic shift preselection mode for mechanical... Automatic shift preselection mode for mechanical...

B - Operations, Transporting

60

K

341/68

B60K 17/04 (2006.01) F16H 61/02 (2006.01) F16H 61/04 (2006.01) F16H 59/12 (2006.01) F16H 59/46 (2006.01) F16H 59/68 (2006.01) F16H 63/44 (2006.01)

Patent

CA 2018162

A control system (104) for semi-automatically executing automatically and manually selected upshifts and downshifts of a mechanical transmission system (10) is provided. The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) and output shaft (90) speeds and from a driver control console (108) indicative of manual selection of upshifts or downshifts from a currently engaged gear ratio, or manual selection of operation in an automatic preselect mode, and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts upon a manually caused torque break of the transmission and manual substantial synchronization of the transmission in the selected ratio thereafter.

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