Automatic Transmission Components
Inside an automatic transmission (AT) there are a number of components that work together to control the gears:
Torque converter
* Located between the engine and gearbox.
*Contains pump, turbine and stator.
*Transmits power from the engine to the gearbox and regulates the speed of rotation of the shaft.
Planetary series
* A mechanism consisting of a set of gears that rotate around a central axis.
* Allows you to create different gear ratios to vary speed and torque.
Hydraulic control unit
* Contains a set of solenoids and valves to control fluid flow.
* Regulates gear shifting and ensures proper gear ratio.
Oil pump
* Provides the fluid pressure required to operate the hydraulic control unit.
Friction discs
* A set of disks that are used to turn gears on and off.
* Operates in an oil bath to reduce wear and heat generation.
Drums and tapes
* Used in some automatic transmissions to change gears and keep them engaged.
Overdrive
*An additional gear that allows the engine to run at lower rpm at higher speeds.
* Improves fuel economy.
The design features of automatic transmissions may vary depending on the type of transmission and its manufacturer. However, the general structure and operating principles remain the same.