The difference between double clutch and continuously variable transmission
1, the working principle is different.
CVT consists of two pairs of pulleys with different diameters and a steel belt. Two pulleys, one connected to the engine and the other connected to the driving wheel, are connected by steel belts. When working, the speed can be changed by changing the diameter of the pulley.
The dual clutch consists of two groups of manual transmissions. Two clutches respectively control the connection and disconnection of two groups of gears and the engine. The dual clutch can be combined with the next gear to be changed in advance. When it is necessary to shift gears, it is only necessary to disengage the initial clutch and then combine a clutch to complete the shift.
2. Different ride comfort.
Dual-clutch transmission system is a combination of two groups of gears, with fast shifting speed and small power loss during power transmission, but serious reverse gear at low speed. The transmission mechanism of CVT is two helical gears and a steel belt. There is no shifting process in automatic gear, and the shifting feeling is small. The power output of CVT is linear and relatively stable during driving.
3. Different adaptation modes
Power shift is mainly divided into dry type and wet type, which is mainly used in European automobile market. Continuously variable transmission is gradually developed under the impetus of Japanese cars and some independent brands, and is suitable for small displacement and lightweight vehicles.
Extended data
Other automobile gearbox types
Automatic manual transmission (AT)?
AT gearbox transmits torque through gears and is cushioned by hydraulic torque converter, so it starts gently and crawls smoothly at low speed, and its acceleration is close to that of traditional manual gearbox (MT), but its efficiency is not as high as that of MT, so its fuel consumption is higher than that of MT, its shifting speed is faster than that of MT and CVT, and of course its response speed is faster than that of MT and CVT.
Advantages: stable quality, wide transmission range (both large displacement and small displacement engines), and good balance between ride comfort and handling.
Baidu Encyclopedia-Double Clutch (Transmission Mechanism)
Baidu encyclopedia-continuously variable gearbox
Baidu encyclopedia-manual and automatic transmission
Baidu encyclopedia-automatic gearbox