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  2. Double-clutching (technique) - Wikipedia

    en.wikipedia.org/wiki/Double-clutching_(technique)

    Before the introduction of transmission synchronizers in 1927, [2] double clutching was a technique required to prevent damage to an automobile's gearing during shifts. Due to the difficulty and most often unnecessary redundancy involved in the technique, coupled with the advent of synchronized gearing systems, it has largely fallen into disuse in light vehicles.

  3. Dual-clutch transmission - Wikipedia

    en.wikipedia.org/wiki/Dual-clutch_transmission

    A dual-clutch transmission (DCT) (sometimes referred to as a twin-clutch transmission) is a type of multi-speed vehicle transmission system, that uses two separate clutches for odd and even gear sets. [1] The design is often similar to two separate manual transmissions with their respective clutches contained within one housing, and working as ...

  4. Direct-shift gearbox - Wikipedia

    en.wikipedia.org/wiki/Direct-shift_gearbox

    A direct-shift gearbox (DSG, German: Direktschaltgetriebe [1]) [2] [3] is an electronically controlled, dual-clutch, [2] multiple-shaft, automatic gearbox, in either a transaxle or traditional transmission layout (depending on engine/drive configuration), with automated clutch operation, and with fully-automatic [2] or semi-manual gear selection.

  5. Ford PowerShift transmission - Wikipedia

    en.wikipedia.org/wiki/Ford_PowerShift_transmission

    The Ford unit is a six-speed with one clutch acting on reverse, first, third, and fifth gears, and the other used for second, fourth, sixth gears. As the first gear is engaged, the 2-4-6 clutch is disengaged and the second gear cogs are engaged. At the appropriate time, the R-1-3-5 clutch is disengaged and the 2-4-6 clutch is engaged.

  6. Mercedes-Benz 9G-Tronic transmission - Wikipedia

    en.wikipedia.org/wiki/Mercedes-Benz_9G-Tronic...

    The MCT transmission is essentially the 9G-Tronic with a start-off wet clutch (NAK for German Nass-Anfahrkupplung) replacing the torque converter. This saves weight and optimises the response to the accelerator pedal input. It is a computer-controlled double-clutching. [9]

  7. Mercedes-Benz 7G-Tronic transmission - Wikipedia

    en.wikipedia.org/wiki/Mercedes-Benz_7G-Tronic...

    Turbocharged V12 engines, 4-cylinder applications and commercial vehicles continued to use the older Mercedes-Benz 5G-Tronic transmission for many years. The company claims that the 7G-Tronic is more fuel efficient and has shorter acceleration times and quicker intermediate sprints than the outgoing 5-speed automatic transmission. [ 1 ]

  8. Twin Clutch SST - Wikipedia

    en.wikipedia.org/wiki/Twin_Clutch_SST

    Twin Clutch SST (Sport-or Sportronic Shift Transmission) is the brand name of a six-speed dual-clutch automatic transmission, developed by Getrag for Mitsubishi Motors. [1] The system was first incorporated in the 2008 Lancer Evolution X , [ 2 ] [ 3 ] and was designed to be a more performance-oriented system than that developed by rival ...

  9. FPT C635 DDCT transmission - Wikipedia

    en.wikipedia.org/wiki/FPT_C635_DDCT_transmission

    It is marketed variously under the trade names TCT - Twin Clutch Transmission , Euro Twin Clutch Transmission , [2] TCSS - The Twin Clutch System [3] and Dual-Dry-Clutch Auto Transmission . Able to receive torque inputs of up to 350 N⋅m (260 lbf⋅ft), the transmission is the highest-torque transverse dual-dry-clutch application.(2012) [ 4 ...