It is said that dual clutch transmissions are not durable, so why are more and more models in use?

Because the dual-clutch transmission is more convenient to drive, and the cost of building a car is not high. Therefore, many models are being used.

Because the dual-clutch gearbox can make the car faster, smoother, and cheaper to make. Although it is not durable, these shortcomings will be corrected as technology advances.

Because more and more car owners are now paying great attention to power and fuel consumption, the dual-clutch gearbox can bring a good power experience to the car, and at the same time will reduce fuel consumption.

The dual-clutch gearbox on the market now has a relatively poor durability. The dual-clutch transmission uses two friction plates to control the operation of the vehicle, and if it idles in place for a long time, it is likely to cause the friction plates to heat up, resulting in a safety failure. After the friction plate is used for a long time, the friction will be reduced, and the friction plate will also become thinner, causing the vehicle to malfunction and the life will be reduced.

When you buy a vehicle, the gearbox directly determines the driving experience of the vehicle. There are CVT, AT, and dual-clutch transmissions on the market, each with its own advantages. In comparison, the CVT has smooth handling, the AT is more stable, and the dual-clutch has a faster start.

However, these transmissions also have their own disadvantages, so they are suitable for different people and models.

First, the popular dual-clutch transmission technology on the market is not yet mature, and there will be defects in use

Since dual-clutch transmissions are more fuel-efficient and can start faster than AT transmissions when driving, some vehicles will be equipped with dual-clutch transmissions. However, this technology is not yet mature, if the car is in the idle state, the friction plate may heat up during the operation. In the event of a spark, the consequences would be unimaginable.

If the dual-clutch transmission is really used, there will be a frustration when changing gears, and the driving experience is quite poor. However, its cost is relatively low, so many car manufacturers use dual-clutch transmissions. Consumers must be vigilant when purchasing.

Second, the life of the dual-clutch gearbox is lower than that of the AT gearbox, so we should choose carefully

The dual-clutch transmission relies on friction plates to control the vehicle, and the working principle is also to rely on frictional resistance to make the vehicle forward or stop. Many people are worried that the friction plate is not so reliable, and if it fails, it will inevitably be a traffic accident. Moreover, the friction plate should be replaced within a fixed time, otherwise it will only cause greater wear and tear, threatening the life safety of the owner.

Compared with the AT gearbox, the maintenance cost of the dual-clutch gearbox in the later stage will be a lot of money, which is also unacceptable to many people.

So, which vehicles do you think are more suitable for dual-clutch transmissions?

It's very hard, and it's not easy to break, and even if you have a hammer to hit it, you won't necessarily be able to break it.

Durability is still okay, it is a molding technology, and it is used in many cars.

The durability of the dual-clutch gearbox is still excellent, and I haven't had any problems using it for ten years.

Dual-clutch transmission, a simple dual-clutch simply refers to "two sets of clutches". There is no need to worry about the longevity of the gearbox. MT AMT is widely used in passenger cars, buses and heavy-duty trucks, which shows that the service life of the gearbox is very exaggerated; The dual-clutch transmission controls odd and even forward gears through only two power input shafts, and the basic concept of gears remains unchanged.

The concept of the clutch is to control the union and separation of the engine and transmission. Manual transmissions are just that, and AMT DCT is no exception; The difference is that the MT AMT uses a "dry friction clutch", which is an original clutch without any heat dissipation and lubrication system, only one set. Under the action of the diaphragm spring, the clutch pressurizes the clutch plate through the pressure plate, so that the clutch plate is stably pressed on the engine flywheel; The flywheel is the power take-off of the engine, which outputs power in a rotating manner.

In the fully linked state, the clutch achieves high friction through high pressure. If the torque of the flywheel is lower than the friction between the two, it will not slip. As a result, the flywheel can drive the clutch and the PTO shaft of the clutch to transmit power in a rotating manner.

Modern dual-clutch transmissions are also widely used. When it comes to the application of dual-clutch transmissions, Hyundai is following in the footsteps of Volkswagen. For example, Kia and Hyundai, which are owned by the Hyundai Group, have many models with turbocharged engines and DCT transmissions.

So far, the dual-clutch transmissions of Volkswagen and Hyundai are also transmissions with a lower failure rate. In the same driving conditions, the durability of the Volkswagen and Hyundai is very good.

The durability of a dual-clutch transmission depends on the driving habits of the owner. If the owner drives frequently on urban roads, the speed is high and low, and the transmission frequently shifts up and down, especially in traffic jams, the dual-clutch transmission often travels in a semi-linkage mode, such a transmission will overheat, the clutch will be seriously worn, and the service life of the transmission will naturally be slightly shorter, however, the clutch assembly is the most prone to failure of this dual-clutch transmission. If it is damaged, simply replace a set of clutch assembly.

Its durability is still very good, and it can generally be used for 5 to 7 years. Many cars have not broken the dual-clutch gearbox after more than ten years of use.

It's still very durable, I've been using it for 7 years and it's still not broken.

After the <> dual-clutch gearbox has been fully implemented by Volkswagen, most people have stopped rejecting the dual-clutch gearbox, and more and more people have accepted the dual-clutch gearbox. Some models have no choice but a dual-clutch gearbox. And some entry-level luxury cars have also begun to use dual-clutch transmissions, such as Toyota, which is supported by Aisin transmissions.

Self-produced, whether it is quality, matching or cost has an advantage. Although Aisin gearbox is also takeaway, there will always be "** insufficient" at critical moments. Even if it's a partner of Toyota:

GAC Trumpchi's GS8 also cannot escape the nightmare of transmission outage.

Dual-clutch hard transmission, the traditional automatic transmission relies on hydraulic transmission, which leads to the dual-clutch transmission, which is more direct than the torque power transmission of the traditional automatic transmission, and the power loss is less, and the power loss of the traditional automatic transmission is high, which directly leads to the dual-clutch gearbox and better fuel economy. Therefore, if independent car companies want to come up with a reliable automatic transmission (decent performance and durability), they must be inseparable from cooperation with mainstream automatic transmission companies!

Chinese car companies are loyal to the dual-clutch gearbox, which may be related to the step-by-step development of our car companies, in the early days of our car companies started late, there is no experience in automatic transmissions, more rely on imported automatic transmissions, the most right of which are to buy Aisin AT gearbox new technology on the drawings and the real use of there will still be a gap. The DQ200 and DQ250 released by the public in the early days did have a lot of problems, not exaggerated, but indeed there, and there are many records on the Internet for the two large-scale recalls.

Why are Chinese car companies loyal to dual-clutch transmissions? The main reason is that many domestic car companies are lacking in gearbox research and development and technical reserves. Let's talk about the manual transmission first, in terms of manual transmission, domestic car companies should say that there is no problem in technology, whether this car company is a joint venture or domestic, basically has used a dual-clutch gearbox, in fact, this is also a forced choice!

Especially domestic cars! In the joint venture car, Volkswagen loves the dual-clutch the most!

It is because such a gearbox can meet a certain performance, and the technology is also particularly superb, so high-end models are chosen in this way.

Because this kind of gearbox is fuel-efficient, relatively safe, and low cost, this kind of gearbox is used.

On the one hand, this is because the dual-clutch transmission is more performant, and on the other hand, it is more fuel-efficient.

Because this kind of gearbox is better, this kind of gearbox is easier to use, and this kind of gearbox can increase the grade of the car.

Because this setting is a little better to use, and it also has a great effect on the balance of the car.

Because of Audi, Volkswagen has to buy someone else's if it doesn't use a dual-clutch, or pay royalties, mainly to save money.

Due to the structural and design factors, you want the DSG to be smooth, dynamic and responsive and direct, so in low-speed tracking in congested environments, the transmission logic determines whether to accelerate or decelerateTherefore, the frequent preparation and switching process of two sets of clutches inevitably leads to frequent half-clutch conditions, coupled with the concept of public environmental protection to seal the clutch in the valve body, especially the dry dual clutch plan to avoid dust entering the air polluted environment, which further leads to overheating of the low-speed half-clutch. The current Volkswagen 7DCT, when the vehicle is driving at low speed, switches to 2nd gear in advance and <>

In the case of traffic jam, the vehicle stops in time, and the transmission is still in 2nd gear, so that the vehicle is started or when the traffic jam is not.

The first and second gears are switched, and the dual clutch is stupid and the old transmission is low-speed.

The jitter phenomenon of the first and second gears is directly eliminated. Therefore, if the public wants to continue to let the dual clutch exist, they must change their publicity strategy and no longer show off the advantages of their car's genes and comfort, but face its cheap characteristics. The gearbox slows down the logic of low-speed shifting, avoiding the half-clutch that is frequently beaten.

So now you'll feel that the dual clutch is unsatisfactory at low speeds and the response is unsatisfactory, the power is always slow at low speeds, and the keep gap always increases by three to <>

But the throttle gives more power than expected, the foot brakes, and some people are not willing to endure these pains and just cut into manual mode driving, so the failure rate is much lower, and there is no question of whether the car is comfortable or dynamically responsive after the speed increases. Therefore, after the test drive of the Sutar and Lavida, the two cars have a very high degree of smooth gear shifting when driving at low speeds. Even in a traffic jam, the vehicle still doesn't shift gears and shakes, except in the process of rapid acceleration, when the second gear will be in first gear and the vehicle feels a little shaky.

In the normal course of the vehicle, there are no problems at all. However, when Volkswagen's design directly leads to traffic jams, the vehicle is slightly less responsive.

Volkswagen dual-clutch transmission, the early problem is mainly the low speed of the vehicle, the dual-clutch transmission is easy to shift frequently, in the process of shifting, the clutch is not fully combined, but due to the sliding state, the temperature of the transmission clutch friction plate is very high, the higher the temperature, the more difficult the dual-clutch transmission control. Volkswagen has strong transmission stability and good acceleration phenomenon during driving. When stepping on the accelerator, the vehicle power changes strongly with the throttle line**, and there is no obvious sense of turbo intervention, but the vehicle response is slightly insufficient, and there is no acceleration impact of Japanese cars, Korean cars, American cars, etc., but the overall driving experience of the vehicle is better.

It means that the car has two sets of clutch volts, and the two sets of clutches will work at the same time. The failure rate of the dual-clutch gearbox is relatively high, and then the cost of maintenance is also relatively high, and the torque is seriously insufficient when running at low speed, and the frustration is very strong; There are more disadvantages than advantages, so people are reluctant to buy.

It refers to a type of transmission, and the disadvantage is that the cost is relatively high and the maintenance is more complicated, so few people buy it.

It refers to the gearbox with two clutches, and the failure rate will be relatively high, which will sometimes increase the cost of maintenance, and there will be a situation of insufficient torque. This gearbox is very expensive and will cost a lot of money, so few people buy it.

Because this gearbox is more complicated and more expensive to repair, which is also its disadvantage, it is a more common transmission.

In addition to the brand talking about the quality of the dual clutch is playing bull hooligan, the dual clutch depends on the brand, such as the Volkswagen Dual Clutch can be purchased, although the Volkswagen Dual Clutch has had a lot of problems beforeBut after so many years of optimization and upgrading, it is relatively mature, as long as it is driven normally, there will be no major problems. However, if the car is not finished, there will be drawbacks. The dual clutch is not suitable for congested road conditions, and long-term congestion will inevitably reduce the life, so it is recommended to switch to manual mode and hang 2nd gear.

Do not listen to the black dual-clutch water army upstairs, maybe the Japanese, the Chinese must be worthy of their conscience.

For example, the dry dual clutch is also one of the most serviced clutches by now. In a sense, dry dual clutch components don't last as long as regular clutch components. Since the dual clutch assembly works particularly frequently, not only does the semi-clutch need to start, but the frequency of the half-clutch needs to be increased to improve the smoothness of the upshift.

Especially at low speeds, the half-clutch state will be more. The life cycle of dual-clutch transmissions is still relatively short. The reason it leaves people with poor reliability is that some manufacturers only care about making money and rush to start when the dual-clutch technology is not mature enough, resulting in a high percentage of defects.

This impression will not change in a short time, but sooner or later it will get better.

As we all know, the principle of the clutch mainly depends on the friction between the clutch plate and the pressure plate and flywheel. As long as the pressure of the pressure plate is well controlled, the degree of slippage of the clutch plate can be controlled at will, and the degree of slippage can also control the speed. If the manual gear wants to start smoothly, the clutch must be released slowly to increase the slip time of the clutch plates.

If the clutch pedal is released quickly, the vehicle won't stall and can also create serious frustration. The same goes for dual clutches, where smoothness is achieved by increasing the degree of clutch slippage. Slipping naturally generates heat, clutch component wear increases, and life is naturally shortened.

There will also be problems such as overheat protection, frustration, etc.

And the advantages of the dual-clutch gearbox are too attractive, in comparison, its disadvantages are more acceptable to the manufacturer. So after being silent for a while, the dual-clutch gearbox is now on fire again, and more and more cars are used. In fact, there are a variety of options on the market that are good for our consumers.

In order to solve the heat dissipation problem of the dry clutch, the clutch plates are soaked in oil, so that the clutch plates dissipate heat very well. This solves the problems caused by poor heat dissipation. But the smoothness is still not as good as that of an automatic transmission.

The advantages are high transmission efficiency, fast shift speed, high torque, and no patent barriers.