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The first real automatic transmission, referring to the first transmission to not use any kind of clutch at all, was the famous Hydra-Matic four-speed automatic. The Hydra-Matic transmission was invented in 1939 by General Motors, and was first included as an option in several models under their Oldsmobile brand.
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The first six-speed automatic was the ZF 6HP26 transmission, which debuted in the 2002 BMW 7 Series (E65). The first seven-speed automatic was the Mercedes-Benz 7G-Tronic transmission, which debuted a year later. In 2007, the first eight-speed transmission to reach production was the Toyota AA80E transmission.
Dec 2, 2022 · History of the automatic transmission. According to Tech Historian, the automatic transmission was first developed in the early 1900s by Karl Benz, who also invented the modern automobile. However, General Motors Corporation employees Edward A. Deeds and Charles F. Kettering developed the first automatic transmission widely employed in ...
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Feb 2, 2023 · In 1932, the Canadian steam engineer Alfred Horner Munro was granted a patent for the first automatic transmission. The "Munro Patent" was an improvement on earlier designs that lacked power and efficiency. Munro's invention allowed for smoother gear changes than ever before with compressed air or hydraulic power as its energy source.
Hydramatic (also known as Hydra-Matic) is an automatic transmission developed by both General Motors ' Cadillac and Oldsmobile divisions. Introduced in 1939 for the 1940 model year vehicles, the Hydramatic was the first mass-produced fully-automatic transmission developed for passenger automobile use.
Mar 19, 2023 · Some credit Canadian steam engineer Alfred Horner Munro with inventing the automatic transmission, whose design was patented in 1923. However, the first such transmission was actually released in 1904. Designed by the Sturtevant brothers of Boston, it had high and low forward gears with flyweights that shifted based on the engine RPM.
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Mar 30, 2021 · 1930’s to 1960’s: 2-Speeds, 3-Speeds & 4-Speeds. In 1939 Cadillac and Oldsmobile became the first manufacturers to utilize a fully automatic transmission in a production vehicle; they named it the Hydra-matic, which would later be named the Turbo Hydra-matic. It was developed for rear-wheel-drive vehicles and had four Forward speeds plus ...
