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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 ...
A clutchless manual system, named the Autostick, was a semi-automatic transmission introduced by Volkswagen for the 1968 model year. Marketed as the Volkswagen Automatic Stickshift, a conventional three-speed manual transmission was connected to a vacuum-operated automatic clutch system. The top of the gear stick was designed to depress and ...
Automated manual transmission (AMT), sometimes referred to as a clutchless manual, is a type of multi-speed automobile transmission system that is closely based on the mechanical design of a conventional manual transmission, and automates either the clutch system, the gear shifting, or both simultaneously, requiring partial, or no driver input ...
Some of these systems are also referred to as clutchless manual systems. [8] Modern versions of these systems that are fully automatic in operation, such as Selespeed and Easytronic, can control both the clutch operation and the gear shifts automatically, without any input from the driver. [9] [10]
Some automatic transmission vehicles have extra controls that modify the choices made by the transmission system. These controls depend on the engine and road speed. Automatic gear selectors generally have a straight pattern, beginning at the most forward position with park, and running through reverse, neutral, drive, and then to the lower gears.
An automatic transmission that allows the driver to control the gear selection (such as shift paddles or "+/-" positions on the gear selector) is called a manumatic transmission, and is not considered a manual transmission. Some automatic transmissions are based on the mechanical build and internal design of a manual transmission but have added ...
The Wrangler's standard 285-hp 3.6-liter V-6 now only comes with a six-speed manual, as it drops the available eight-speed automatic. For 2025, every Wrangler now comes standard with power locks ...
Semi-automatic transmissions on motorcycles are also referred to as auto-clutch transmissions, or sometimes, clutchless manual transmissions. They function in the same way as a conventional fully-manual motorcycle with a sequential gearbox , except they utilize a fully-automatic clutch system, or sometimes torque converter , but still require ...