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Automated manual. v. t. e. Gear selection lever on the steering column of a 1934 Daimler Fifteen. A preselector gearbox is a type of manual transmission mostly used on passenger cars and racing cars in the 1930s, in buses from 1940–1960 and in armoured vehicles from the 1930s to the 1970s. The defining characteristic of a preselector gearbox ...
A gear stick (rarely spelled gearstick ), [1] [2] gear lever (both UK English ), gearshift or shifter (both U.S. English ), more formally known as a transmission lever, is a metal lever attached to the transmission of an automobile. The term gear stick mostly refers to the shift lever of a manual transmission, while in an automatic transmission ...
A sequential manual transmission, also known as a sequential gearbox, or a sequential transmission, is a type of non-synchronous manual transmission used mostly for motorcycles and racing cars. [1] It produces faster shift times than traditional synchronized manual transmissions, and restricts the driver to selecting either the next or previous ...
Later cars used both a foot pedal and a hand lever to set the minimum throttle. The 1918 Stutz Bearcat had a central throttle pedal with the clutch and brake to the right and left. Modern cruise control was invented in 1948. Transmission A floor-mounted gear lever in a modern passenger car with a manual transmission
The M6 Presto-Matic was a Chrysler Corporation semi-automatic transmission produced from 1946 to 1953. It was a special manual transmission with a fluid coupling. Although it had just two forward gears, an electric overdrive unit was attached and useful in either gear for a total of four forward speeds. The driver would use the clutch pedal any ...
Design and operation. 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, electro-mechanical, pneumatic, electromagnetic ...
t. e. A parking pawl is a device fitted to a motor vehicle 's automatic transmission that locks up the transmission when the transmission shift lever selector is placed in the P ark position. "Park" is the first position of the lever (topmost on a column shift, frontmost on a floor shift) in all cars sold in the United States since 1965 (when ...
A transmission control unit ( TCU ), also known as a transmission control module ( TCM ), or a gearbox control unit ( GCU ), is a type of automotive ECU that is used to control electronic automatic transmissions. Similar systems are used in conjunction with various semi-automatic transmissions, purely for clutch automation and actuation.