ABSTRACT:
The twin-clutch transmission, also known
as the Direct Shift Gearbox (DSG) or dual-clutch transmission, is an automated
transmission that can change gears faster than any other geared transmission.
Twin-clutch transmissions deliver more power and better control than a
traditional automatic transmission and faster performance than a manual
transmission. Two
separate clutches for odd and even gear sets are utilized by it. It can be
imagined as two separate manual transmission working as one unit. They are
operated in a fully automatic mode. It eliminates torque converter as used in
conventional epicyclical-geared automatic transmissions but use two oil-bathed
two wet multi-plate clutches. It eliminates the lag, thus improving
acceleration and engine performance overall. One of them is responsible for
controlling the odd gears, such as first, third and reverse, while the other
manages the even gears – second, fourth and others.
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