What are the main components of an automatic transmission?
2 Answers
An automatic transmission consists of a torque converter, gear train, oil supply system, automatic shift control system, and shift operating mechanism. Below is a partial introduction to automatic transmissions: 1. The working principle of an automatic transmission is: it uses planetary gear mechanisms to shift gears, automatically adjusting the gear ratio based on the degree of throttle pedal input and changes in vehicle speed. 2. Common types of automatic transmissions include: hydraulic automatic transmissions, continuously variable transmissions (CVT), electronically controlled mechanical automatic transmissions, and dual-clutch transmissions. Their characteristics include easy operation, comfortable driving, and reduced driver fatigue. Hydraulic automatic transmissions achieve gear shifting through a combination of hydraulic power transmission and planetary gears.
I’ve always been fascinated by car parts, and automatic transmissions are quite interesting when taken apart. The key components include: the torque converter at the front, which connects to the engine like a big fan; a stack of planetary gears in the middle resembling a tower of blocks; the oil pump at the bottom, diligently pumping fluid into the valve body, where a maze of small valves sits on the valve plate; modern cars even have a computer module constantly calculating when to shift gears. The whole assembly is submerged in oil, with a small radiator on the side. If these parts don’t work in harmony, the shifts can be jerky enough to make anyone frown.
