With the passage of time and the progress of science and technology, automatic gearbox technology has made a leap. In the past two years, the 7-speed and 8-speed automatic gearbox has become the mainstream, and the shifting speed can be comparable to that of dual clutch, which is more reliable. Some manufacturers are turning to AT transmissions.
And why is the public still insisting? Because there is no choice, the research and development of dual clutch has invested heavily in recent years. If it abandons the dual clutch, it is not only a question of loss, but also a question of what to replace the dual clutch. If it is an automatic transmission, it is almost monopolized by Credit Suisse and ZF in the world at present, which means that the public has to buy a lot, and the cost is on the one hand. As a big enterprise, it is always unsafe to be led by others. In addition, the continuously variable transmission is the Japanese world, and it is even more impossible for the public to use it. Therefore, only the dual clutch is the "best" choice, and this "good" means that it is more in line with its own interests.
To be honest, Volkswagen's dual clutch has made great progress this year, and it is rarely heard that there is a problem, which also shows that the dual clutch is not as bad as everyone thinks.
We always hear many "old drivers" say that Volkswagen's dual-clutch gearbox is not reliable, but Volkswagen still continues to use the dual-clutch gearbox. Why? There are three main reasons. The first is that Volkswagen can produce its own dual-clutch gearbox. We all know that there are two main suppliers of at gearboxes used by Volkswagen. All horizontal engine models adopt Aisin of Japan, and all vertical engine models adopt ZF of Germany. If Volkswagen's gearboxes are imported, it must be a huge number. Toyota owns 22% of Aisin. Will Toyota let Volkswagen outsell itself? So if the public doesn't want to be controlled by others, they have to make their own gearboxes.
But Volkswagen does not have the ability to produce gearboxes. At this time, Borgwarner of the United States and LUK of Germany provided Volkswagen with a solution of dual-clutch gearbox. Everyone knows that Volkswagen is good at making manual gearboxes. Dual-clutch gearbox is just similar to manual gearbox in structure, so it has dual-clutch gearbox.
Another main reason for Volkswagen to use the dual-clutch gearbox is that the transmission efficiency of the dual-clutch gearbox is higher than that of at, so the fuel consumption of vehicles will be lower, which is very important for reducing fuel consumption in the case of stricter emission standards.
Another reason is that the cost of dual clutch gearbox is a little lower than that of at. One is that the processing and manufacturing cost is low, and the other is that it can be produced by itself, so that others can avoid increasing the price, which can further reduce the cost. This is why Volkswagen is so keen on dual-clutch gearboxes. Because Volkswagen is mostly a turbocharged engine, CVT gearbox is not suitable for Volkswagen, so Japanese cars prefer to use CVT. The reason is the same, just to reduce costs and fuel consumption.
It is impossible to achieve today's achievements in various fields by giving up when encountering problems; The problems encountered by the dual clutch are not contradictory to the public's insistence on using it. In the early days, when the AT gearbox first came out, there were also many problems. Aren't you still using it? Without the persistence of that year, how could there be such a mature at gearbox? Nowadays, such a mature AT gearbox is gradually improved after numerous problems appear. It is good to correct the problems. How can you give up easily?
The gearbox is one of the most difficult parts in the car, so the gearbox is not intentionally built; There is another concept to be introduced, that is, whether to do it or not and whether to be competitive are completely two concepts; It is not difficult to build AT gearbox with Volkswagen's strength, but the products made are probably not competitive. Good quality and low price, love letter and high-end ZF. Even if Volkswagen builds an AT gearbox, can it be better than those two? Moreover, At gearbox has high development cost and long development cycle, and its performance is likely to fail to meet expectations. Therefore, engaging in research and development is also a new stove. It is necessary to engage in a product that is easier to develop, has a shorter cycle and far exceeds expectations. Volkswagen's double clutch is produced under this background; Dual clutch gearbox is easier to produce because of its simple structure, but the difficulty lies in the matching with the engine, but Volkswagen can learn from Porsche's matching technology and realize the expectation more easily!
Gearbox is not a child's play, you can use it if you want to use other people's products;
Volkswagen can represent the most intimate brands in Europe, not high-end at all; In Europe, manual gear is the main gear, so the spare parts supply system is also around manual gear! As shown in the above figure, even in the prevalence of automatic transmission today, the proportion of manual transmission cars in Europe is still as high as 80%. Therefore, in the 1980s and 1990s, the proportion of manual gears in Europe was at least 95%. Even if a small number of high-end models are equipped with automatic transmission, it is possible for Volkswagen to locate civilian vehicles and certainly not engage in automatic transmission, because at that time, Volkswagen could not predict that automatic transmission would be so popular in the future. Therefore, at that time, Volkswagen mainly made manual gears, and the manual performance of Volkswagen's home was quite good; But at the same time, Aisin and ZF, which represent the high end, have purchased the patent right to use the six-speed planetary gear mechanism and put it into research and development; So when automatic transmission became popular, Volkswagen suddenly found that it didn't have an automatic gearbox to use, so the early Volkswagen used Aisin's 6AT (in fact, Volkswagen and Toyota had a honeymoon); Both BMW and ZF are controlled by the Quant family, so it is natural to use ZF's gearbox directly. Mercedes-Benz's AT gearbox is completely developed by itself, so it is valuable to develop AT. After all, Mercedes-Benz is a high-end brand, and there are AT audience customers among the high-end users in Europe. The public doesn't have to. The AT gearbox developed by Volkswagen will be used in China and the United States, and European consumers will not recognize it at all, because most European consumers even buy Audi and BMW. Who will buy it in the public?
Volkswagen's automatic gearbox mainly faces the China market. The American market is dominated by Toyota, and Volkswagen has been having a hard time in the United States for so many years. During Toyota's cooperation with Volkswagen, it can purchase a large number of 6AT of Aisin for use. Later, the relationship between the two broke down and completely opposed. At this time, Aisin, which is controlled by Toyota, cannot fully cooperate with the public. Occasionally out of stock, delay and other means make the public unbearable. This is an inevitable result, because Toyota doesn't want to see Volkswagen grow bigger and bigger by its own products. Another point is that the consumption of the public is too large, and Aisin's products have to be supplied to many enterprises, which will easily lead to insufficient production capacity of Aisin!
Therefore, people who are oriented to the people are reluctant to develop AT gearboxes, because European consumers who choose the public will not accept automatic gearboxes; Therefore, Volkswagen only provides automatic transmission models for China and the United States. The cooperation with Toyota was terminated, and the public was embarrassed. It doesn't want to be controlled by others, and it doesn't want to develop a gearbox that is out of its own position. Therefore, we can only engage in a dual clutch with shorter research and development cycle and stronger performance. Although there are many problems, they are constantly improving; AT gearbox has been put into civilian use for decades, and there have been many problems, but it is gradually improving and perfecting in the long river of years. However, it took Volkswagen more than ten years to put the dual clutch into civilian use, and it is normal to have problems. If there is a problem, we must go forward bravely and not give up, and the future dual clutch will mature; Give up and there will be no future!
Why is Volkswagen still using dual clutch and dsg technology? Don't the public know that there are some immature problems in the dual clutch, and the public doesn't know to pay attention to the market?
Actually, it's not, mainly because Volkswagen has always had barriers on the gearbox. Volkswagen used to use Toyota's subsidiary, which is Aisin's gearbox. The three most important parts of a car are engine, gearbox and chassis, among which the importance of gearbox is self-evident. If you always rely on other people's gearboxes, then the profits of enterprises will be greatly suppressed.
Therefore, Volkswagen will find another way to find gearbox technology, so it thought of dual-clutch gearbox, which was first used in racing cars, with faster shifting speed and lower cost.
Whether it is cvt gearbox or at gearbox, even if he has this technology, there is no protection of this patent. That is to say, even if he has this technology, he can't produce this gearbox, and the gearbox like cvt has limited torque, so this cvt gearbox is not the gearbox mainly developed by Volkswagen. For example, Volkswagen's Audi a6 only has a 2.5 v6 engine and cvt gearbox assembly, which means that Volkswagen is not the main force in developing cvt gearboxes.
Volkswagen's dual clutch is divided into dry dual clutch and wet dual clutch. In fact, Volkswagen's wet dual clutch has no such problems, but it is relatively stable. The main problem and difficult problem is dry dual clutch. At present, the mainstream of Volkswagen's dry dual clutch is dq200' s seven-speed dry dual clutch. If it is not in the case of special traffic jams, the technology is still relatively mature.
Dual clutch is definitely not as stable as at gearbox, but Volkswagen's dual clutch is the best in technology, except pdk.
Volkswagen's dual clutch gearbox is a commonplace topic. To be realistic, Volkswagen has had many problems because of this double clutch, especially when it was recalled in the early stage of large-scale failure. Even this did not stop the promotion of dual clutch. Why?
First of all, the car itself is a whole composed of tens of thousands of parts, and the gearbox is one of the most important core components. The whole process from design and development to production and use requires huge funds and considerable energy. Today, with the development of automobile to cooperation, the core technologies for automobile enterprises are nothing more than those, such as engine, gearbox, chassis, adjustment and quality control. Mastering more than one of them can greatly improve your competitiveness. Even if some problems can be improved later, it is obviously not easy to simply give up. If so, I don't know how many engines and gearboxes should have been eliminated long ago, not just other Volkswagen brands.
Of course, Volkswagen's earliest research and development of dual clutch was also helpless. Early gearboxes relied on Aisin. Because Toyota, the largest shareholder behind Aisin, competed directly with Volkswagen, it was later limited to supply on the gearbox. If Volkswagen goes to cooperate with other companies, it is likely to encounter the same problem in the later stage. It is extremely difficult to develop at by itself, so I believe that Volkswagen has the strength to develop CVT. However, this kind of gearbox is not in line with people's pursuit of speed style, so they look for a new breakthrough in despair, so the dual-clutch gearbox came into being. Although there is a gap between reliability and at of aisin, at least we don't have to look at our faces. The problems in the early stage were more or less experimental, and then they were improved step by step, and now they have been greatly improved, especially the wet double clutch is not as bad as it has been circulated.
Of course, many consumers complain, but the public still uses it in China. On the other hand, it is mainly because of its high brand awareness. Even if there is a problem, the annual sales volume can be far ahead of the second place. It is almost impossible for any other brand to do it, let alone sell high, which may lead to its withdrawal from the market a few years ago.
I hope the above analysis can help everyone!
If today is not Volkswagen's dual clutch, or AT and CVT monopolize the market, I think you may need to pay more money to buy a car. Volkswagen's old Jetta automatic transmission first used its own AT, which seems to be called AGK. I can't remember clearly. I don't think there is anything wrong with Volkswagen's dual clutch. Some people say that the American public. Is the United States really the authority of more than 200 countries in the world? In the last sentence, everything has advantages and disadvantages. AT is not a perfect gearbox, nor is CVT, nor is DSG. Everyone should treat it correctly, but the innovative spirit of the public is really worth learning.
Volkswagen's AT gearbox seems to be made by Toyota Aisin of Japan, which is limited by other people's production capacity, so it takes a shortcut to develop its own dual clutch. The manufacturing cost of the double clutch is low. To put it bluntly, two manual gearboxes are combined into one, with obvious advantages and disadvantages. The advantages are fast gear shifting and low fuel consumption. The disadvantage is that the gearbox is easy to be frustrated if it is not optimized, and the gearbox in congested sections is easy to overheat, especially the DQ200 dry 7-speed DSG gearbox. This gearbox is most used in Volkswagen's 1.4T turbocharged engine. Bora, LaVida, Golf, Sagitar and other 1.4T models all use this gearbox, but now Volkswagen has optimized the shifting logic of the gearbox better, and the sense of frustration is basically gone, but I don't know how durable it is. If you want to buy Volkswagen's dual-clutch model, I think it is more reassuring to buy extended warranty. After all, there are many kilometers.
Without the scientific and technological progress and active application of German, would you experience the acceleration experience of automobile turbocharging? You have to find a diesel engine to experience it. It's just a fact. Pursuit is better than standing still, not to mention continuous improvement. Can you say that it is not enterprising spirit? It was put on some enterprises, was discredited and suppressed, and gave up long ago. Can this be said to be a persistent spirit? There's nothing more responsible than selling you an engine 10 years ago. Isn't it this endless spirit that promotes the progress of human society and the development of China?
When it comes to the dual-assembly gearbox, you have to mention Volkswagen. At present, Volkswagen focuses on the research and development of dual-clutch gearbox. Although there have been many problems before, the public's reputation has also deteriorated, but the constant public insists on the dual-clutch gearbox and insists on the development and use of the dual-clutch gearbox. Why does Volkswagen have a soft spot for dual-clutch gearboxes?
Dual clutch gearbox has been used in racing cars for a long time, with light weight, simple structure and fast shifting speed. Although there are obvious setbacks, it is not important for the car. After all, cars pay more attention to speed and performance. But for civilian cars, what is important is quality and smoothness. Because of the structure itself, the dual-clutch gearbox is difficult to be smooth, and major manufacturers are also trying to optimize it, which is impossible.
Why does Volkswagen prefer a dual clutch gearbox? We know that CVT gearbox and at gearbox are mainly produced by several companies in the world, including Czech and Aisin in Japan and ZF in Germany. These three companies are the largest gearbox manufacturers in the world and have too many patents. If the public wants to use their gearbox, they must pay for it themselves. Sometimes money can't buy it. For example, Toyota used the insufficient supply of gearbox as an excuse to reduce the supply of gearbox to Volkswagen, and Volkswagen was also at its wit's end.
In order to get rid of other people's restrictions and further reduce the cost of building cars, Volkswagen aimed at the dual-clutch gearbox with blank patents. Why not develop in gearbox? If we want to develop AT gearbox, we need to bypass the patent, which is time-consuming and laborious. Volkswagen chooses a dual-clutch gearbox that is easier to succeed in a short time. The dual clutch gearbox has a very simple structure and low cost, which is more conducive to the cost control of the public.
At present, Volkswagen's dual clutch gearbox is still ok, especially in fact, the problem of fever has been basically solved. However, the quality of dry dual clutch gearbox is average. Due to the lack of oil cooling, it is still prone to problems such as fever and frustration under congested road conditions. If the road is congested, it is recommended to use manual mode or S gear, which is relatively better. Personally, if you can buy Volkswagen with wet dual-clutch gearbox, don't buy a car with dry dual-clutch gearbox.
Is there a problem with the dual clutch? What's the problem? For some people, the frustration of downshifting and the feeling of pulling are problems, which seriously affect the driving experience. For some people, he enjoys the driving feeling of strong upshifting, fast acceleration and pushing back. For some people, oil leakage is a problem, while for others, as long as it is not oil leakage, it doesn't matter whether the fault light is on or not. Some people, cars are tools. For some people, cars have more meanings and symbols. So, the problem is big or small.
I have a new Audi, which has obvious downshift, rustling outside the left window and shaking badly at idle speed. It is a common fault of China people that they feel a little calmer after checking online. I don't suffer from poverty and inequality. Intolerance of ninja, consultation, posting, questioning. Curious, can't manufacturers see or hear these reactions? If you see it, if it is a problem, why not improve it? If there is a problem with the recall, the cost is not greater.
The disadvantages and advantages of dual clutch are outstanding, so choose carefully. Sensitive person suggested not to choose.