CVT technology development, has been a hundred years of history. Mercedes-Benz is the originator of CVT technology use in the car, back in 1886 will be V-shaped rubber belt CVT installed on the company's gasoline engine car. However, due to the presence of the rubber belt CVT series of shortcomings: limited power (torque is limited to 135Nm below), energy clutch job insecurity, hydraulic pumps, belts and clamping mechanism of the loss of the larger, so there is no universally accepted automotive industry.

Now, the torque converter integrated into the CVT system, the primary, the clamping force of the driven wheels to achieve electronic control of the pump energy efficient CVT, the drive belt in place of the conventional metal band rubber band. New technological advances to overcome the technical defects of the original CVT system, resulting in a greater transmission torque capacity, better performance CVT available, for research and development of automobile industry CVT technology is increasingly valued.

CVT continuously variable transmission can be realized, and therefore according to the actual situation of the vehicle and the road surface, change transmission gear ratio, the engine has to work in power and fuel consumption rate in the optimum range. Therefore, compared to the stepped transmission, CVT transmission dynamics. Meanwhile, CVT by changing the master, the radius of the driven wheel work to implement variable speed, compared to the commonly used AT automatic transmission CVT on the domestic market through the implementation of the torque converter, CVT transmission efficiency and fuel economy are greatly improved.

CVT CVT is the use of variable diameter belt and work of the Lord, the driven wheel matched to transmit power. You can make the engine operating conditions to achieve the best match driveline. Metal belt type continuously variable transmission system includes driving wheel group, driven wheels, metal belts and hydraulic pumps and other basic components. The driving wheel and the driven wheel set by the movable plate and the fixed plate composed of a side close to the pulley and the cylinder can slide on the shaft, the other side is fixed. Movable plate and fixed disks are cone structure, their cone to form a V-shaped groove with a V-shaped metal belt engaged.       Engine power output shaft is transmitted to the first driving wheel of the CVT, and then transmitted to the driven wheel by a V-belt drive, the final gear, the differential is transmitted to the wheels to drive the car. Working through the driving wheel and the driven wheel to move axially movable platen to change the working radius of the driving wheel, the tapered surface and the driven wheel engaged with the V-belt transmission, thus changing the transmission ratio. Since the working radius of the driving wheel and the driven wheel can be continuously adjusted, in order to achieve a continuously variable transmission.