Despite the new outbreak in recent years, automatic car actually has created more than 100 years ago.
Is the Sturtevant brothers who made this project in 1904. Sturtevant build Horseless Carriage, with two-speed automatic transmission that is able to move themselves. It later became the ancestors of the world’s automatic car.
How it works is simple. When the engine speed increases, centrifugal force of the flywheel will encourage the transmission mechanism into a higher gear. Then when the engine speed lowers, the spring mechanism will restore the tooth to a low position. In those days, the discovery automatic transmission is very spectacular but less appreciated.
But who would have thought, from this simple discovery automatic transmission progressing very rapidly. Through a sophisticated computer, automatic transmission is capable of beating the ability of humans in accuracy gearshift.
Several years later, one of which Ford is developing this invention by producing the Ford Model T. The car is very popular at that time using 2-Speed.
The weakness of the automatic transmission car at that time could not stop when the teeth in a forward position. Must be neutral. At the start, the car also jumped.
New in 1930 Chrysler developed a fluid coupling system to address this problem. Fluid in the transmission system makes the car move more subtle, especially when after quitting.
This technology continues to grow. In 1940, Cadillac and Oldsmobile develop Named Hydra-Matic technology. This is the first time using the automatic transmission fluid driven teeth hidroik.
By carrying out the four levels of acceleration, the United States automobile manufacturers, GM, selling this technology to Europe, such as Bentley and Rolls-Royce.