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  2. Automated manual transmission - Wikipedia

    en.wikipedia.org/wiki/Automated_manual_transmission

    Automated manual transmissions can be semi-automatic or fully-automatic in operation. Several different systems to automate the clutch and/or shifting have been used over the years, but they will generally use one of the following methods of actuation for the clutch and/or shifting: hydraulic or electro-hydraulic actuation, [12] electro-mechanical, [13] pneumatic, [6] [14] [15] electromagnetic ...

  3. Automatic transmission - Wikipedia

    en.wikipedia.org/wiki/Automatic_transmission

    This unit was an early semi-automatic transmission, based on the design of a conventional manual transmission, which used a servo-controlled vacuum-operated clutch system, with three different gear shifting modes, at the touch of a button; manual shifting and manual clutch operation (fully manual), manual shifting with automated clutch ...

  4. Transmission (mechanical device) - Wikipedia

    en.wikipedia.org/wiki/Transmission_(mechanical...

    An automated manual transmission (AMT) is essentially a conventional manual transmission that uses automatic actuation to operate the clutch and/or shift between gears. Many early versions of these transmissions were semi-automatic in operation, such as Autostick , which automatically control only the clutch , but still require the driver's ...

  5. AP automatic transmission - Wikipedia

    en.wikipedia.org/wiki/AP_automatic_transmission

    The AP automatic transmission is a 4-speed automatic transmission unit developed by Automotive Products and the British Motor Corporation specifically for use in the Mini.. It was unique in that not only was it one of the first transverse mounted automatic transmission units tailored for front wheel drive, it was one of the smallest in order to be used in the transmission-in-sump installation ...

  6. Volvo I-Shift - Wikipedia

    en.wikipedia.org/wiki/Volvo_I-Shift

    The different versions of the I-Shift are named AT (Automatic Transmission) or ATO, where the O stands for overdrive. The standard versions have a gear ratio of 1:1, while the overdrive has a ratio of 0.78:1, suitable for long-distance use. The numbers show maximum torque in hundreds of newton metres, plus 12 for the number of gears. [1]

  7. List of Ford transmissions - Wikipedia

    en.wikipedia.org/wiki/List_of_Ford_transmissions

    Manual – the driver has to perform each gear change using a manually operated clutch; Automatic – once placed in drive (or any other 'automatic' selector position), it automatically selects the gear ratio dependent on engine speed and load; Basically there are two types of engine installation:

  8. Semi-automatic transmission - Wikipedia

    en.wikipedia.org/wiki/Semi-automatic_transmission

    The 1941 Chrysler M4 Vacamatic transmission was a two-speed manual transmission with an integral underdrive unit, a traditional manual clutch, and a fluid coupling between the engine and the clutch. [ 51 ] [ 52 ] [ 53 ] The two-speed transmission had "high" and "low" ranges, and the clutch was used when the driver wanted to switch between ranges.

  9. ZF 4HP transmission - Wikipedia

    en.wikipedia.org/wiki/ZF_4HP_transmission

    The 4HP is a 4-speed Automatic transmission family with a hydrodynamic Torque converter with an electronic hydraulic control for passenger cars from ZF Friedrichshafen AG.In selector level position "P", the output is locked mechanically.