Recently, the Gongge noted a list of selection on the top ten transmission. It is understood that the selection activity is hosted by the Auto Evaluation Institute, and the full name is the “Dragon Cup” World Top Ten Transmission. It is founded in June 2017 and is currently the fourth session. The gearbox involved is divided into an electrified gearbox mounted in AT, DCT, CVT, and a mixed vehicle, and the model is sold in China.
From the view, the autonomous brand is very competitive, direct and joint venture “five-five open”. However, many people don’t buy this, more is cold moderate and questioned, as for specific reasons, let’s talk back. The following is the first five domestic gearboxes and models.
1, FAW 7DCT (DCT400)
Winning Model: Red Flag H9
This code is a 7-speed wet dual-clutch gearbox for DCT400, which is officially available in June last year. The output line, then take the red flag H9 in the flagship sedan. FAW official claims that this is the first self-developed vertical dual-clutch gearbox, the maximum transmission efficiency can reach 97.5%, maximum torque 420 cow middot; rice, as a reference, red flag high 3.0T model torque is 400 Nm .
Further, the transmission box can also match the longitudinally driving force framework. And modular design, add 48V light mixing system or plug-in hybrid system.
2, SAIC 7DCT (DM21)
SAIC this code DM21 7-speed wet double clutch gearbox, is its own research and development After the third generation of products, I was equipped on the third-generation March 6 after the year, and the dry double clutch equipped with the second generation of Mr. 6, the wet structure also made everyone more happy to accept some.
Officially said that this new double-clutch alternator uses the world’s first three-cavity independent cooling lubrication system, which has reached the level of leading products in the shift response, comfort and fuel consumption.
3, Qingshan Industrial 7DCT (DF727) 
Winning model: Changan Uni-T
Many people may be the first time I heard that Qingshan industry, it is located in Chongqing, It is a state-owned enterprise with a military background. It has been starting the transmission of gearboxes in the passenger field in the 1980s. It is a large number of gearbox suppliers in China. This code DF727’s 7-speed wet dual-clutch transmission is its jointly created by Changan, and has been developed for 8 years.
Currently, the gearbox is in addition to being mounted on UNI-T, The Changan CS series is also involved. In addition, some of the models such as Chery and Jetong brand also have a wide application.
4, Wanlong CVT (CVT25)
Winning model: Ruihu 8Plus
Wanli Yang originally a merchant of the main carrier gearbox, later passed through the Geely manual transmission And the acquisition of the Chery CVT transmission is only active in the field of passenger. This CVT25 gearbox is its latest representative work, which uses a separate hydraulic system, an LTD shock absorbing system, and Bosch’s latest generation of advanced technology.
The input torque can be extended to 280 Nm, the speed ratio is reached 7.07. In addition, the gearbox can also manually simulate 9 files, support startup, electronic shift, 48V light mixing.
5, BYD 6DCT (T75)
Winning model: Tang DM
This set of 6DCT plug-in mixed special transmission in BYD Tang DM, early 2014 In terms of production, it is a more mature product.The product is. It adopts more advanced process and higher strength materials, optimizing transmission lubricating cooling, P0 motor auxiliary shifts, etc., while ensuring high transmission efficiency, while maintaining power and fuel economy.
This gearbox is currently a BYD DM-P drive system technology The core, but it is necessary to know that the latest DM-I system released by BYD has abandoned the traditional gearbox structure.
In general, there are four in the autonomous brand, and four are double clutches, one is CVT, no AT. For this phenomenon, it is actually very well explained. First, the independent brand is indeed more at the development of the double-clutch alternative, in addition to the above four, more famous, Great Wall and Guangzhou Automobile. 
This is because AT and CVT patents are mastered by most gearbox giants, such as love letter and pick, etc., and double clutch It is not so strict in the technical threshold and the barrier, so it will be sought after by independent research and development. Of course, we also have domestic AT gearboxes, such as Shengrui’s 8AT, and 6 of Dong’an.
Dong’an 6AT gearbox
Shengrui 8AT gearbox
碍于 技术 技术, Reliability, popularity, etc., their AT transmission volume is not high, and it has not been able to integrate into the mainstream market. The CVT gearbox is currently more famous, and there is only a similar problem. These are mostly the status quo of the domestic transmission.
Wanli Yang CVT gearbox
AT and CVT were cardd, although there were more manufacturers to develop, but because of early technology immature, In addition, it is not good to have a good match with your own engine, and many people have left a bad impression. Overall, domestic and joint ventures are in the gearbox, the gap is still not small. 
So you said this time, a world ten-speed alternative, then found half of the domestic gearbox, how can everyone easily accept it? ?
Write in the last
At present, the domestic gearbox is still working to join the joint venture, such as the Great Wall has developed a 9AT and 9DCT gearbox, which is not in the entire domestic gearbox. Break through. However, in today’s electric trends, many international plants have to give up the development of internal combustion engines, which will also face the same problem. Then there is still no need to drill back, this is a question worth thinking. Welcome everyone to pay attention to “The Bowl of the Domain” and share your opinion in the following reviews. 