What is the function of a car transmission?
2 Answers
The functions of a car transmission are: 1. To change the transmission ratio and expand the range of torque and speed variation of the driving wheels; 2. To enable reverse driving without changing the rotation direction of the engine crankshaft; 3. To interrupt power transmission to the driving wheels when the engine is started, idling, shifting gears, or when power output is required for parking; 4. To achieve neutral gear, allowing the transmission to output no power when the clutch is engaged. Transmissions are divided into manual transmissions and automatic transmissions. Manual transmissions consist of gears and shafts, achieving speed and torque variation through different gear combinations. Automatic transmissions consist of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque variation through hydraulic transmission and gear combinations.
I think the transmission is particularly important when driving. It acts like an intermediary regulator, allowing the engine's power to be adjusted more appropriately according to different road conditions and speeds. For example, during city traffic jams, the car needs to move smoothly at low speeds, and the transmission will automatically shift to lower gears to provide greater starting power. Once on the highway, it switches to higher gears, making the engine run more smoothly and fuel-efficiently. Without it, the engine would only operate at a fixed speed, leading to inefficiency, higher fuel consumption, and increased wear. Automatic transmissions are especially convenient, responding quickly when driving on mountain roads or during sudden acceleration. I've also noticed that if there's an issue with the transmission, it might cause jerking or delayed shifting, affecting the comfort and safety of daily commutes. Regular maintenance of transmission fluid is key to avoiding these issues and extending the car's lifespan.
