Transmission design
Schematic diagram
| Item | Description |
|---|---|
| 1 | Engine |
| 2 | Dry double clutch |
| 3 | Output shaft B - 3rd gear, 4th gear and reverse gear |
| 4 | Input shaft A - 1st gear, 3rd gear and 5th gear |
| 5 | Input shaft B - 2nd gear, 4th gear, 6th gear and reverse gear |
| 6 | Output shaft A - 1st gear, 2nd gear, 5th gear and 6th gear |
In principle, the transmission comprises two independent gear trains.
Each of the two input shafts is connected via outer splines to a clutch disc.
Each of the two output shafts provide a final drive gear ratio to the differential ring gear.
Input shaft A is the core shaft and drives the odd numbered gears (1st, 3rd, and 5th gear).
Input shaft B is the hollow shaft and drives the even numbered gears (2nd, 4th, and 6th gear) as well as the reverse gear (via an intermediate gear).
Output shaft A contains the driven gears and synchronizers for 1st, 2nd, 5th, and 6th gear as well as the intermediate gear for reverse.
Output shaft B contains the driven gears and synchronizers for 3rd, 4th, and reverse gears.
During driving, one gear train is always positively connected and the next gear is already engaged in the other gear train (although the clutch for this gear is still open).