Continuously variable transmission refers to a transmission system in which the engine gearbox can continuously obtain any transmission ratio within the transmission range, so that the car can have a better power output, which is generally more common in Japanese cars.
With the continuous progress and innovation of science and technology, more and more cars are equipped with continuously variable transmission, which is more convenient to operate than the traditional transmission before. However, many people do not understand what continuously variable transmission is. Let’s follow Xiaobian today.
In order to realize the stepless speed change, according to the transmission mode can adopt liquid transmission, electric transmission and mechanical transmission three ways.
Liquid transmission: It is characterized by large speed regulation range, shock absorption and overload prevention, high transmission efficiency, long service life and easy automation; However, the ma
Electric drive: it is characterized by good speed regulation performance, wide range, high efficiency, automatic control, small size, and wide power range; However, the mechanical characteristics are constant torque in the deceleration section. At low speed, the efficiency is low and the operation is not smooth enough. The price is high, and the maintenance needs professional personnel.
Mechanical transmission: the characteristics are mainly stable speed, small sliding rate, and poor hitting characteristics of constant power mechanical characteristics, so it is generally suitable for medium and small power transmission, high transmission efficiency, and simple structure, convenient maintenance, relatively cheap price;However, the processing and lubrication requirements of parts are high, the bearing capacity is low, and the overload resistance and impact resistance are poor.
Common continuously variable transmissions are hydromechanical continuously variable transmissions and metal belt continuously variable transmissions (VDT-CVT).