As a manual gearbox uses gear of different sizes and individually engaged, the Automatic Transmissions is based on a grouping of planetary gears, with the most diversified sizes possible and permanently interlocked, so that the ratio of the force always depends on the order with which these gears are being connected. The system is hydraulic and also makes use of a torque converter.
Formation
Each of the planetary gears has 3 very fundamental parts - the crown gear, the planetary gear and its support and the solar year. It is around the sun gear that the planetary wheels spin and the system still has braces to lock parts of every gear grouping.
In addition, the torque converter in the Automatic Transmissions that are used today is a type of pump attached to the gearbox having the stator conducts the flow of the fluid and a turbine. The great benefit of this equipment is the increase of the motor torque.
And finally, it is extremely important to take into consideration that the modern automatic gearbox has many electronic control devices.
Do you understand what a CVT transmission is?
A Continuously Variable Transmission has no gear ratios formed by fixed gears, such as a manual shift lever or automatic transmissions. Instead, a CVT transmission provides the vehicle's engine to run through the most efficient RPMs in a succession of vehicle speeds.
The most obvious use for a CVT transmission is at the moment you are seeking to ensure maximum fuel efficiency. However, this is too simple an interpretation for a system that implies a bit of complexity.
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