Video encyclopedia

Automatic transmission


How Automatic Transmissions Work! (Animation)


Toyota Eight-Speed Automatic Transmission


Benefits of driving automated transmission trucks


How Automatic Transmissions Work! | Best 3D Animation Ever


4 signs of a Bad Automatic Transmission failing Symptoms Slipping makes Whining Noise

An automatic transmission, also called auto, self-shifting transmission, n-speed automatic, or AT, is a type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually. Like other transmission systems on vehicles, it allows an internal combustion engine, best suited to run at a relatively high rotational speed, to provide a range of speed and torque outputs necessary for vehicular travel. The number of forward gear ratios is often expressed for manual transmissions as well.
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    • Other American inventions 

    • History 

    • Parts and operation 

    • Automatic transmission modes 

    • Comparison with manual transmission 

    • Automatic transmission models