The word Powershift or DCT is refer to dual-clutch transmissions, also known as Powershift Transmissions. Some of its features are as follows:
It uses
a dry clutch, and it avoids the clutches to not bathe in oil for it to cool
down. This process increases its efficiency.
One of
its best features about it is that it does not require any periodic
maintenance. It is filled with oil and sealed for life (10 years or 240,000 km)
– does not require any after-care.
It
includes a subset of 2 transmissions, with attached components for comparison
such as the Getrag ib5 gearbox, which even Ford uses as a 5-speed manual
transmission with a dry weight of 35 kg.
Some of
the benefits of Powershift Transmissions are as follows:
Its
gear shifts very quickly. It also lowers transmission losses.
The
electro-mechanical actuators remove the need for hydraulic lines.
The dry
clutch does not require cooling lines.
Some of
the disadvantages of Powershift Transmission are
as follows:
Its
logic can be confused by driver input, it results in slow gear changes.
It's a
complex process. This complexity can lead to several issues and difficulties in
repairs.
Manufacturers
are not preferring dry clutches gearboxes. They are shifting to wet clutches
because of their improved reliability and thermal constraints. Example –
Getrag’s newer 6DCT150 gearbox.
Components:
A Powershift transmission consists of 2 manual transmissions that interact very
efficiently with the use of electronics and electrical. This gearbox includes
mechanicals, electromechanical actuators, and control electronics.
https://www.avtec.in/avtec-automotive-engines-and-transmissions.php
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