Shift. Through the combination of gears of different sizes, the transmission can achieve different transmission ratios, thereby changing the driving speed of the car.
Change the driving force. Depending on the road surface and driving conditions, the transmission can provide the appropriate driving force for the vehicle. Cut off or transmit engine power. The gearbox can cut off or transmit the engine's power as needed, allowing the engine to effectively output power or idle. Change the direction of power output. The gearbox can change the direction of the car's power output by shifting gears, enabling forward and reverse driving. Enhance vehicle torque. When high torque at low speed is required, the transmission can enhance the vehicle's torque through specific gear combinations, making the vehicle drive more smoothly. Clutch function. The gearbox can separate the engine from the load by separating the originally meshed gears. Distribute power. Gearboxes allow one engine to drive multiple loads through different shafts.