What is the function of the gearbox?

The car transmission, also known as the gate box, its role is to change the engine speed, increase the torque of the engine to drive the wheel rotation. When a car starts off, is heavily loaded, climbs a slope, or rides rough roads, it requires more torque than a light load driving on a hard, hard surface. Second, when the transmission is placed in the neutral position, the engine can be disengaged from the wheels, so it is not necessary to use the clutch to separate. Again, because the engine crankshaft is always oriented (clockwise), the combination of transmission gears is used to change the direction of rotation to achieve vehicle reversal. When the transmission is shifted into the first or second gear position, the torque can be increased to maintain the engine at a high speed while the vehicle moves at a low speed.

The automobile transmission is essentially a variable force device. It can turn the low-torque, high-torque power into low-torque and high-torque power. Conversely, it can turn low-torque high-power into low-torque, high-torque power. . Therefore, the transmission is an indispensable component of an automobile transmission.