GF26.00-P-0003-05MCC Automated Manual Transmission (Automated Manual Transmission) Shift Process

GF26.00-P-0003-05MCC Automated Manual Transmission (Automated Manual Transmission) Shift Process







1 Shift fork, shift collar 5
2 Shift fork for sliding gear, reverse gear
3 Shift fork for shift collar 1/3
4 Shift fork for shift collar 2/4
5 Main shaft
6 Selector drum 1/3, 5
7 Selector drum 2/4, R
8 Input shaft
M17/3 Transmission motor 1
M17/4 Transmission motor 2

Shift operation
The two selector drums are assigned to the gears:
^ Selector drum 1/3, 5: Gear 1, 3 and 5
^ selector drum 2/4, R: gear 2, 4 and reverse gear
Through corresponding rotation of the selector drums the sliding blocks running in the grooves are deflected to the left or right. As a result the corresponding shift collars are displaced in turn via the shift forks and thus the gears are shifted.

Because when shifting out of a gear and shifting into the next gear different selector drums are used, the gearshift may overlap when it is executed:
^ While the current gear is disengaged, the next gear is moved up to the synchromesh.
^ When the shift collar has separated the previous gear, the new gear is then synchronized and engaged.

The overlap reduces the time for the gear change significantly, it is shorter than that of gear change with only one selector drum.