What is the main function of a transmission?
2 Answers
The main function of a transmission is to change the gear ratio, expand the range of torque and speed variation of the driving wheels to adapt to frequently changing driving conditions, while keeping the engine operating under favorable conditions. The transmission is one of the main components in the automotive drivetrain, allowing the vehicle to reverse while maintaining the engine's rotational direction. Transmissions are divided into manual and automatic types. Manual transmissions primarily consist of gears and shafts, achieving speed and torque variation through different gear combinations. Automatic transmissions (AT) are composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque variation through hydraulic power transmission and gear combinations.
The transmission is like a matchmaker, dedicated to helping the engine and wheels fall in love. The engine has plenty of power but spins too fast, while the wheels prefer a leisurely pace. That's where the transmission steps in, breaking down the engine's power into manageable portions for the wheels. A manual transmission is like a manual pacemaker—you decide which gear to use. An automatic transmission is even more convenient, with the computer handling everything for you. Without it, your car would either crawl up hills like a snail or refuse to accelerate no matter how hard you press the gas. If it breaks down, you're in trouble—at best, your fuel consumption doubles, and at worst, your car just stops running. So, you'd better take good care of it.
