| 摘要 |
A control system (104)/method for semi-automatically executing manually or automatically 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 selection of upshifts or downshifts from a currently engaged gear ratio and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) and to a non-manually operable master friction clutch operator (CC) to implement a shift into transmission neutral and then the selected shifts upon a manual substantial synchronization of the transmission. <IMAGE> |
