Common transmissions include mechanical, hydraulic, and hydraulic. Transmissions perform functions such as deceleration, speed change, reverse, power interruption, and inter-wheel and inter-axle differentials. Working in conjunction with the engine, they ensure smooth operation under various operating conditions while delivering excellent power and economy.
Mechanical transmission: A mechanical transmission system generally consists of a clutch, transmission, universal joint, final drive, differential, and axle shafts.
Hydraulic transmission: This system generates kinetic energy through the circulation of a fluid medium between the driving and driven elements. Two types of hydraulic transmissions are hydraulic couplings and torque converters. Hydraulic couplings can transmit torque but cannot vary the magnitude of the torque. Torque converters, in addition to all the functions of hydraulic couplings, can also achieve stepless speed change.
Hydraulic transmission: This system transmits energy through changes in the static pressure energy of the fluid transmission medium. Hydraulic transmission has the advantages of flexible layout, but its transmission efficiency is low, the cost is high, and the life and reliability are not ideal. It is currently only used in a few special vehicles.