Simply put, a transmission is a magical device used to change engine speed and torque. It has many functions:
Gear Ratio Change: The transmission adjusts the torque and speed of the drive wheels, allowing the engine to maintain optimal operating conditions in various road conditions. For example, high speed and low torque are needed on the highway, while low speed and high torque are required when climbing a hill. The transmission can easily handle both, improving fuel economy and providing a more comfortable driving experience.
Reverse Drive: Everyday driving inevitably requires backing into parking spaces or exiting narrow roads. The transmission can redirect the power flow without changing the direction of engine rotation, allowing the car to travel in reverse. This is a very practical feature!
Power Interruption: The transmission's neutral function disconnects the power connection between the engine and the drive wheels. This is particularly useful during engine starting and gear shifting, preventing accidental vehicle movement, ensuring smooth gear shifting, and facilitating power output maintenance.