Question

What is automatic transmission? What is the principle of automatic transmission?

Answer 1

It 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.The automatic transmission is same work as the manual transmission except it is controlled by the brake arrangement operated hydraulically.In this the engine shaft is connected to the clutch and the further connected to the turbine of the torque converter.

Answer 2

Answer:

Principle of Automatic Transmission:

This type of gear box uses no sliding dogs or gears to engage but different gear speeds are obtained by merely tightening brake bands on gear drum. It consists of a sun gear, pinion or planet gear and the ring gear.