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A clever way of changing gearsThe DSG never takes a rest: while you are accelerating in 2nd gear, for example, the control logic is already pre-selecting 3rd gear. At the gearshift point, the twin multi-plate clutch reacts in a flash and the transmission shifts seamlessly. A two-shaft construction makes this changeover possible and ensures an uninterrupted flow of power to the drive wheels. | |
FunctionalityConventional manual gearboxes operate with just one clutch. To change gear, the driver steps on the clutch pedal and interrupts the power flow. This is a prerequisite because when changing gear a different pair of gears (ratios) is selected in the gearbox – and this cannot take place under load.
The Direct Shift Gearbox prevents this power interruption. In idealised terms, it offers the function of two manual gearboxes in one. It is technically a compact component.
In contrast to conventional manual gearboxes, the Direct Shift Gearbox has a two-part transmission shaft. It consists of an outer hollow shaft and an inner shaft. The inner transmission shaft feeds gears 1, 3 and 5, and the outer gears 2, 4 and 6. A twin multi-plate clutch continuously transmits the engine power to one of the two shafts.
When driving, one gear is always engaged and one pre-selected. When the gearshift point is reached, one clutch segment opens in a flash while the other closes. The driver therefore hardly notices the gearshift process. This uninterrupted, efficient transfer of power enables particularly sporty driving. | Comparison testAccelerate with the Direct Shift Gearbox and compare it to a conventional manual gearbox. |
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