Which is better, dual clutch transmission or infinitely variable gear?

The continuously variable speed is good, and the dual-clutch gearbox is not recommended.

Dual-clutch, which cannot be compared with CVT. Today's CVT technology is not what it was 10 years ago...

If it's a Porsche's PDK, it's definitely a dual-clutch.

I haven't driven the CVT and don't spray randomly, the dual-clutch is very good, the gear shift is very fast, and I often have the urge to overtake.

The dual-clutch gearbox, as we can tell from the name, has two clutches. Its transmission principle is basically the same as that of manual gearbox, and the power is transmitted through gears, so the transmission efficiency of the dual-clutch gearbox is relatively high, and the loss of power is small, so as to achieve the effect of fuel saving. In addition, thanks to the innate structural advantages, the dual-clutch transmission can be replaced quickly.

However, in the state of low-speed peristaltic and starting, the dual-clutch transmission responds more slowly and takes a long time to bond, resulting in poor smoothness in both cases. In addition, in terms of reliability, the dual-clutch gearbox is relatively poor.

Actually, I feel that the latter is better, and the latter is better with this gearbox.

CVT and dual-clutch have been driven, driving feeling dual-clutch crisp, shift fast acceleration cool, CVT, especially acceleration below small displacement, people are anxious, when it comes to fuel consumption with the displacement of CVT and 7-speed dual-clutch fuel consumption is about the same, the Golf at home has been 6 years, and last year I bought a Sylphy automatic Haohua version of the two cars compared to Sylphy in addition to large space, other places are really not as good as Golf.

Volkswagen dry dual-clutch transmission How about putting it is not at ease.

I feel that the dual-clutch gearbox is a combination of two sets of manual gearboxes, one is an odd-numbered gear, and a set is an even-numbered gear, and in the process of driving, the next corresponding gear has been prepared in the running process of a gear, so the gear shift speed is very fast, so that the acceleration performance of the vehicle is very good. However, the shortcomings of this set of gearboxes are also more obvious, the dry dual-clutch is easy to overheat in a long-term low-speed state, which affects the workmanship, and the performance of the downshift is a lot of dual-clutch gearbox does not solve the problem of frustration very well, which makes the gearbox shake or abnormal noise when downshifting or going uphill.

It depends on what model it is applied to. If it is a van used by housewives on the streets of Japan, a grocery shopping cart, or a car that picks up and drops off children to and from school, it is undoubtedly good to have a CVT continuously variable transmission. However, if it is a performance car, and you want to pursue power and a good driving feeling, then it is undoubtedly good to be equipped with a dual-clutch transmission.

If you are a woman, the elderly, buy CVT, if you are a man, young people buy a double clutch, CVT must be gently opened, because the CVT steel belt design is only 300,000 at most, so you can not brake suddenly, you can not accelerate sharply, so you can barely drive 300,000 kilometers, if you like to accelerate sharply, like sudden braking, 100,000 kilometers CVT steel belt will be scrapped.

I bought an Elantra taxi in 06, ran 600,000 kilometers, clutch, gearbox has not been repaired, at 500,000 kilometers, is the third gear synchronization tooth broken, forward plus gear no feeling, is five, four gear back three gear can not enter, need to enter the second gear and then into the third gear, forget not to repair it is used, in 13 years bought the Cerato run operation, now are 420,000 kilometers of road, gearbox and clutch, the engine has not been disassembled and repaired, driving or manual driving fun!

Personally, I feel that DCT (dual-clutch collectively), can be said to be the fastest gearbox for shifting, high transmission efficiency, energy saving, fuel saving, fast shift and many other advantages, but due to the Volkswagen's 7DSG dry type led to a black 10,000 years, many consumers did because of the DCT phobia at that time, and now they dare not say good things for DCT, saying that it is sprayed, all DCT is not durable tone, and in fact, even as early as 2008, wet 6DCT has not had any problems, Therefore, I hope that the majority of riders will be objective. DCT is being developed all over the world, and it is destined for the future. The difficulty of the DCT gearbox is not in the DCT itself, the real problem is the "matching" of the DCT with the engine, which Volkswagen does very well.

For these two gearboxes, I personally feel that CVT is more advantageous. Because in most current models, the use of dual clutch has more or less some flaws, and the CVT transmission is relatively more worry-free.

Infinitely variable speed. That is, the CVT gearbox, which is better in terms of smoothness of shifting and fuel economy, the disadvantage is that it is more delicate, has cold protection and heat protection, and cannot accelerate too violently for a long time. Dual-clutch transmission.

It is divided into two types: dry and wet, the dry type mainly relies on air cooling, afraid of long-term traffic jams, and the wet type is relatively much better, mainly relying on the oil and liquid cooling, the disadvantage is that it is not resistant to make, belongs to the delicate type of gearbox, and there is an obvious sense of frustration after the number of kilometers of the vehicle. Let's say which gearbox has advantages and disadvantages, if you separate one depends on your needs, the dual-clutch is better than the CVT in terms of shift speed and smoothness, that is to say, you prefer that kind of performance model or dual-clutch transmission, if Qingchao is just a home travel to consider the CVT gearbox.

You look for civilian dual-clutch transmissions around the world, whether wet or dry, and which one is more reliable than that???

The dual-clutch gearbox is better, because the clutch gearbox is relatively safer, so it is more secure for people's travel, and the speed of the continuously variable gearbox is very fast, which is more prone to traffic accidents.

I can't absolutely say which one is better, the infinitely variable speed has less noise and good smoothness, but its power is limited, and the dual-clutch transmission power is good, but it will still be frustrated at low speeds.

For daily use, the infinitely variable speed will be a little better. The car with this kind of transmission does not feel the stump in normal driving, and it is very stable and comfortable.

Infinitely variable speed is a little better. This kind of thing is not only fuel-efficient, but it is also very convenient to switch, and it is still very good for daily use.

None are good, and if not used properly, it will break quickly.

From a technical point of view, the dual-clutch is more advanced, more fuel-efficient, and has less power loss.

From an economic point of view, the dual-clutch has stricter requirements for maintenance, the cost is higher, and the transmission efficiency is higher.

Stability, dual-clutch is still not honed, and there are many problems with the current mainstream dual-clutch, such as Volkswagen's DSG, Ford's dual-clutch and so on.

Cost-effective, dual-clutch models are much higher, and the advantages brought by ordinary people will not be too obvious.

The continuously variable transmission is actually gearless, the 6-speed of the Ethereal and the 8-speed of the Audi are both simulated, and the CVT gearbox works more smoothly and there is no gear shifting, so there is no loss of power, which is more comfortable, but not suitable for intense driving.

So each has its own advantages, theoretically the 7-speed dual-clutch shift speed is already quite fast, the power loss is smaller, it should be said that the dual-clutch is better.

From the normal use of the situation, the continuously variable speed technology is mature, smooth, fuel-efficient and durable. However, it is not suitable for excessive torque transmission. The dual-clutch transmission is straightforward, easy to use, and more fuel-efficient, but it still needs further improvement.

What does automatic transmission, continuously variable gear, automatic manual transmission, and dual clutch all mean.

Alone in the west building without a word, the moon is like a hook, the lonely sycamore, and the deep courtyard locks Qingqiu.

It's hard to choose, but it's still the wrong choice.

The continuously variable gearbox is better:

1. CVT gearboxCVT gearbox is what we often call a continuously variable gearbox, the transmission ratio of its internal force transmission mechanism is continuously changed within a certain range, there is no clear specific gear, and the operation is similar to that of an automatic gearbox.

Advantages: The biggest advantage of CVT continuously variable transmission is that it has good driving smoothness and good matching with the engine, so that the engine can always work in the most economical speed range. The transmission efficiency is higher, the fuel economy is also better, and the structure is relatively simple compared with the hydromechanical automatic transmission (AT);

2. Disadvantages: Because the torque that the CVT transmission belt can withstand is limited, the CVT model is not suitable for intense driving and extreme off-road; In addition, the cost of steel belts and taper pulleys in CVT continuously variable gearboxes is very high, and there are very few manufacturers, so once damaged, the maintenance is very high;

3. Dual-clutch gearbox dual-clutch gearbox is referred to as DCT, because there are two sets of clutches inside, so some people call it "dual-clutch transmission". DSG is just the proprietary name of the dual-clutch technology that Volkswagen buys out.

Continuously variable gearbox and dual-clutch gearbox have their own advantages and disadvantages: 1. Continuously variable gearbox, that is, continuous variable transmission, the transmission does not shift gears, but the maintenance cost is high; 2. The dual-clutch gearbox shifts quickly, but the torque at low speed is not enough, and the probability of failure is greater. Continuously variable transmissions originated in Europe and developed in Japan. Its structure is very different from that of AT and DCT.

Instead of using gears to transmit torque, it uses friction between the chain and bevel gears to transmit torque. It has more freedom in gear setting. Ratios, gear ratios, and balances of performance, fuel consumption, and exhaust emissions in conventional transmissions are easier to achieve.

The dual-clutch transmission shifts faster, eliminating torque discontinuities and reducing drive force loss. In short, the drive output is always on. Compared with the traditional automatic transmission, the fuel saving effect is better, and the fuel consumption can be reduced by about 10%.

Wet dual clutch and CVT transmission.

It is a very economical and practical type of transmission, which can be seen in many self-owned brand models due to its low cost. Wet dual clutch or CVT transmission, which is better for a family vehicle? Characteristics of wet dual-clutch transmissions.

The biggest feature of the dual-clutch transmission is that the shifting speed is very fast. This is due to the fact that the two sets of manual shifting mechanisms are actually shifted in turns.

The nose file is one set, and the even-numbered gears are another, so when the owner hangs on one gear, the next gear is already on standby, ready to change gears, which is very efficient. That's why dual-clutch shifting is used in a lot of performance cars or sports cars. However, the biggest flaw of dual-clutch transmissions is essentially manual transmissions.

Therefore, there is a clutch plate, so there will be heating and wear of the clutch plate during the shifting process, which is also the focus of the biggest criticism of the owner of the dual clutch transmission in the past. In fact, for the relative congestion of domestic urban traffic, for road situations that require frequent walking and stopping, double clutch. Dual-clutch transmissions are also available in wet and dry versions.

The so-called dry and wet are distinguished by whether the clutch plates are soaked in the transmission oil or not.

In the case of a wet transmission, the clutch plate is soaked in transmission oil, so the cooling effect is better, so the wet dual clutch is of better quality and there is less frustration in driving. Therefore, if you buy a clutch model, the probability of problems will be low, so you can buy it. If it's a healthy food, I personally don't recommend it.

Continuously variable transmission characteristics.

The principle of the CVT transmission is to achieve the gear ratio using two pairs of adjustable cones and intermediately connected steel.

infinite variation. The so-called infinite change is that there is no clear concept of building blocks. The change in the gear ratio it achieves is linear.

There is no grade change with other types of transmissions, so the CVT transmission gears can achieve very smooth, non-frustrating gears, especially suitable for active comfort and driving smoothness models. Audi A6

As mentioned above, the dual-clutch gearbox can withstand a lot of torque, so it is more suitable for sport-oriented models, but not for crowded city roads.

The CVT gearbox is primarily a comfortable and smooth drive, and is not recommended for owners who have more aggressive needs for the car. Wet dual clutch or CVT transmission, which is better for a family vehicle? In short, wet clutch and CVT gearboxes have their own advantages, and the cost is relatively low, making them a good choice for private cars.

Dual-clutch and continuously variable gear, I think the continuously variable speed is more suitable for home use, the continuously variable speed is very convenient, the continuously variable speed is very suitable for home use, and its fuel consumption is small, the most important thing is that it is very comfortable to drive, so the household generally chooses continuously variable gear.

Continuously variable gear is more suitable for home use, and the dual-clutch transmission is actually a racing car configuration, which is a bit overkill for home use.

It is still more suitable for household use, because the continuously variable speed has higher fuel economy and is more fuel-efficient, and the two are similar in terms of reliability. If it is self-priming plus continuously variable gear, it is even more perfect.

Introduction: Compared with dual-clutch and continuously variable transmission, the continuously variable transmission will be better than the dual-clutch transmission, which is also because the dual-clutch transmission is not suitable for home use because of the stability problem, you must know that the dual-clutch transmission is also a kind of transmission that has been popularized in recent years. It is necessary to extend the semi-linkage state between the two sets of clutches, so for a family, the cost of maintenance in the later period of use is very high.

Continuously variable transmission.

The continuously variable transmission is actually automatic, but it can also be combined with manual transmission and automatic transmission, compared with the general manual transmission, in the process of driving when using the continuously variable transmission, the increase or decrease of gears will actually be more obvious. However, the CVT does not have a clear gear, similar to the automatic transmission in operation, but the power output in the operation process is actually not as good as the automatic transmission, the traditional functions such as the speed ratio and the balance of performance and fuel consumption are relatively difficult to achieve, and the maintenance cost is also relatively high, if the operation is improper, the CVT is very prone to problems.

Automatic transmission.

In addition to dual-clutch transmissions and continuously variable transmissions, the current more popular by car owners is the automatic transmission, this technology is actually more mature at present, the current market is common is the 6AT transmission, automatic transmission is mainly through the combination of hydraulic transmission and planetary gears to achieve automatic transmission, in this process is not used clutch for shifting, shift less change is relatively large, and it is also relatively stable, for novice Xiaobai operation is also very simple.

Summary. Finally, there are dual-clutch transmissions, continuously variable transmissions, and automatic transmissions on the market.