Currently, many people are afraid when talking about dual-clutch, but everything has its advantages and disadvantages. Many people only talk about the failure rate and frustration of dual clutches, but they don't talk about the advantages of dual clutches. In fact, many car companies, including the general public, have reasons for choosing dual clutches. Why do so many car companies choose it?
1. High transmission efficiency
The dual-clutch gearbox is the automatic gearbox closest to the manual gearbox in terms of transmission efficiency. They are neither. Compared with the automatic transmission transmission efficiency of about 80%, the transmission efficiency of Volkswagen's dual clutch can reach more than 90%. Transmission efficiency means fuel economy for consumers and easier emissions standards for manufacturers. Since the dual-clutch gearbox has two input shafts, one gear is combined and the next gear is ready for combination, shifting speeds are very fast. Some prefer the shifting action of a dual-clutch transmission and its sportier shifting performance.
2. Low R&D difficulty
More and more independent brands use or even develop dual-clutch gearboxes independently, but they are able to independently develop automatic gearboxes and use them in their own mass-produced cars. The number of car companies used can be counted on one hand, which fully illustrates the difficulty of automatic transmission development. Car companies rely on purchasing 90% of their automatic transmissions from Aisin, which is why Aisin is so influential.
3. Simple structure and low production cost
Compared with automatic transmissions, the structure of dual-clutch transmissions is simpler and rougher. The gearbox is generally composed of a hydraulic torque converter, a planetary gear mechanism, a shift actuator, a shift operating mechanism and other devices, while a dual-clutch gearbox achieves gear shifting through the alternating work of two sets of clutches. The simple structure means that the production cost is relatively low. Low.
For many independent car companies, there are various reasons for adopting dual-clutch transmissions, some to save fuel and emission standards, some to reduce costs, and some to bypass patents barrier.