How Does an Automatic Transmission Work in a Car?
1 Answers
Automatic transmission in a car operates by utilizing planetary gear sets to change gears automatically based on the throttle pedal position and vehicle speed. The transmission, also known as a gearbox, is a mechanism designed to alter the speed and torque from the engine, either maintaining a fixed ratio or changing the gear ratio between the output and input shafts. The functions of a transmission include: 1. Changing the gear ratio to expand the range of torque and speed variations for the driving wheels; 2. Enabling the vehicle to reverse while maintaining the engine's rotational direction; 3. Utilizing neutral gear to interrupt power transmission, allowing the engine to start, idle, and facilitating gear shifts or power output.