5.3.16 Preselective robotic transmission
Nowadays, such types of gearboxes as preselective robotic (automated) are becoming more common. What does it mean? Their design has drive shafts with gears rigidly mounted on them and there are two driven shafts with freely rotating gears and speed synchronizers. Gears of even and odd gears are installed on each shaft, respectively. That is, on one shaft only, for example, 1st, 3rd and 5th gears are switched on, and on the second shaft - 2nd, 4th and 6th. Each of these two shafts has its own clutch. Everything together is controlled and switched by electronics and servo mechanisms.
The benefit of this design is that in fact we have a manual transmission with all its advantages, but with the ability to change gears without interrupting the power flow from the engine to the wheels.
Note
One of the main drawbacks of all manual transmissions is a gap in the power flow, traction from the engine to the wheels, while shifting gears, which is associated with the need to disengage the clutch.
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