What is the purpose of a transmission?
2 Answers
The functions of a transmission are as follows: 1. To change the transmission ratio and expand the range of torque and speed variation of the drive wheels. 2. To enable the vehicle to reverse while maintaining the same engine rotation direction. 3. To utilize neutral gear to interrupt power transmission, allowing the engine to start, shift gears, and facilitate gear changes or power output. 4. The transmission consists of a gear transmission mechanism and a control mechanism, and a power take-off can be added when needed. Extended information: Automotive transmissions are divided into manual and automatic types. Manual transmissions mainly 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 transmission and gear combinations.
I've been driving a taxi for over twenty years, and the steering wheel of my manual transmission car is almost worn through. To put it simply, the transmission is like a butler controlling the engine's power. Think about it—when you start, you need strong power to climb hills, but on the highway, you need fuel efficiency. The engine alone can't handle that. The transmission has several sets of gears of different sizes working together. In first gear, a large gear pushes a small one, making the wheels turn slowly but with great force, like a climber huffing and puffing with effort. In fifth gear, it's the opposite—a small gear pushes a large one, making the wheels spin fast while saving fuel. Without this thing, driving at 60 mph would force the engine to scream at 5,000 RPM, sounding like a tractor, and it would blow up before hitting 300 miles. When shifting gears, you also need to watch the tachometer—shifting at 2,000 RPM is the smoothest. And don’t keep pressing the clutch at red lights; if it wears out, replacing it will cost half a month's wages.
