What does automatic mean?

[SanBrooke]

automatic refers to automation. In automotive terminology, this word means automatic transmission vehicles or automatic gear-shifting cars, commonly known as automatic transmissions. The core function of an automatic transmission is to achieve automatic gear shifting. Automatic transmissions use planetary gear mechanisms to change gears and can automatically shift based on the degree of throttle pedal input and changes in vehicle speed, allowing the driver to control the speed simply by operating the accelerator pedal. The engine's power is transmitted through the transmission, which is also a key factor affecting fuel consumption. Generally, automatic transmissions consume over 10% more fuel than manual transmissions. Regardless of whether it's a manual or automatic transmission, more gears usually mean better fuel efficiency.