What are the commonly used transmission devices?
2 Answers
Commonly used transmission devices include mechanical transmission, hydrodynamic transmission, hydraulic transmission, and electric transmission. Transmission devices are intermediate equipment that transfers the power from the power unit to the working mechanism. The basic function of the transmission system is to transmit the power generated by the engine to the driving wheels of the vehicle, generating driving force to enable the car to travel at a certain speed. The composition and arrangement of the transmission system vary depending on the type of engine, its installation position, and the intended use of the vehicle. For example, off-road vehicles often use four-wheel drive, incorporating additional components such as transfer cases in their transmission systems, whereas front-engine, front-wheel-drive vehicles do not require components like drive shafts in their transmission systems.
The most common transmission device in cars is the gearbox. In manual transmissions, we primarily rely on clutch plates and gear sets to transmit power, and you can directly feel the gear engagement jerk during shifting. Automatic transmissions are more convenient, using devices like torque converters to transmit power through transmission fluid, resulting in exceptionally smooth operation. Nowadays, many electric vehicles don't use traditional gearboxes, instead employing direct motor drive for highly efficient power transmission. Additionally, the driveshaft and differential are crucial, especially in rear-wheel-drive vehicles. The long driveshaft directs power from the gearbox to the rear wheels, while the differential automatically adjusts the rotation speeds of the left and right wheels during cornering. Belt drives are also common in the engine compartment, powering accessories like the air conditioning compressor.
