How about the independent wet 7-speed dual clutch of Great Wall?
As a domestic brand, the speed of the Great Wall's rise in recent years is amazing enough, especially its power system and other configurations have even played the slogan of crushing the public. However, the overall performance of the 7-speed DCT of the Great Wall is really good. The wet clutch is driven and cooled by oil. The structure similar to soft combination has controllable wear and temperature, which is the main reason why the wet structure can achieve almost the same stability as AT gearbox.
It is precisely because of this that the Great Wall has attracted many consumers with the slogan of "independent research and development". But it should be noted here that independent research and development is in double quotation marks. In fact, the so-called independent research and development is only a marketing routine of domestic brands in recent years. Although the gearbox is produced by ourselves, it is not known what proportion of the parts produced and developed by ourselves account for this gearbox.
The same is true of Great Wall's 7DCT450 dual clutch gearbox. When Great Wall developed this gearbox, it also purchased many parts provided by world-renowned gearbox parts suppliers, including many manufacturers who provided gearbox parts for high-end brands such as BMW and Mercedes-Benz. For example, the bearings of the Great Wall dual-clutch gearbox are provided by Schaeffler in Germany, the dual-clutch control module is provided by Borgwarner in the United States, and the most important hydraulic control module of the gearbox is provided by Gertrak.
A dual clutch gearbox needs at least 160 parts. Great Wall is only responsible for the production of 18 parts, and others are well-known foreign brands. Therefore, it is not unreasonable for the Great Wall to say that its gearbox can crush the public.