What is the function of a car's transmission?
1 Answers
The functions of a car's transmission are: 1. To change the transmission ratio, expanding the range of torque and rotational speed variations of the drive wheels to adapt to frequently changing driving conditions, while allowing the engine to operate under favorable working conditions; 2. To enable the car to reverse while keeping the engine's rotational direction unchanged; 3. To interrupt power transmission by using neutral gear, allowing the engine to start, idle, and facilitating gear shifting or power output. The internal control mechanism of an automatic transmission is very precise, with small matching clearances, so most automatic transmissions have an oil change cycle of generally two years or 40,000 to 60,000 kilometers. During normal use, the working temperature of transmission oil is usually around 120 degrees Celsius, thus requiring high-quality oil and maintaining cleanliness.