What are the functions of a manual transmission?

[Angelo]

Manual transmission has the following functions: 1. Achieve speed and torque variation by changing the gear ratio, expanding the range of torque and speed changes at the driving wheels to adapt to frequently changing driving conditions, while keeping the engine operating under favorable conditions; 2. Enable reverse driving. When viewed from front to back, the engine's rotation direction is clockwise and cannot be changed. To achieve reverse driving of the vehicle, a reverse gear is set in the transmission; 3. Enable interruption of power transmission. A manual transmission is a gear-shifting device used to change the speed and torque transmitted from the engine to the driving wheels, allowing the vehicle to obtain different traction forces and speeds under various conditions such as starting from standstill, climbing hills, turning corners, and accelerating.