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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 ...
But some semi-automatic transmissions have also been based on standard hydraulic automatic transmissions with torque converters and planetary gearsets. [1] [2] Names for specific types of semi-automatic transmissions include clutchless manual, [3] auto-manual, [4] [5] auto-clutch manual, [6] [7] and paddle-shift transmissions.
In Europe in 1997, only 10–12% of cars had automatic transmissions. [4] In 1957 over 80% of new cars in the United States had automatic transmissions. [3] Automatic transmissions have been standard in large cars since at least 1974. [5] By 2020 only 2.4% of new cars had manual transmissions. [6]
A manual transmission requires the driver to operate the gear stick and clutch in order to change gears (unlike an automatic transmission or semi-automatic transmission, where one (typically the clutch) or both of these functions are automated). Most manual transmissions for cars allow the driver to select any gear ratio at any time, for ...
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 ...
Automatic Transmissions With Components For Hybrid Drive On Request 8HP 76/I 3rd 900 N⋅m (664 lb⋅ft) [t] 2018 – Present Longitudinal: 5.0000 0.6400 8 7.8125 1.3413 1.7889 P & S 4 2 3 Torque Converter w/ Lockup Electronic 8HP 30 3rd 300 N⋅m (221 lb⋅ft) 2018 – Present Longitudinal: 5.2500 0.6400 8 8.2031 1.3507 1.8330 P & S 4 2 3 ...