Many friends will pay attention to the gearbox, one of the three major parts of the car, when buying a car: what kind of gearbox is carried by the car? As many people know, the dual-clutch engine has a high failure rate because of its instability. At present, the gearbox with the highest transmission efficiency is the manual gear, but although the manual gear is good, it is still a little overwhelmed by the new era. Let’s talk about automation.
I comparison of advantages and disadvantages between AT gearbox and dual clutch gearbox
1. The service life of AT gearbox is longer.
This involves the structural principles of two gearboxes. AT gearboxes usually use hydraulic torque converters, while dual-clutch gearboxes usually use clutch plates. The biggest difference between these two gearboxes is whether their internal components are directly connected together, and they are usually divided into rigid and non-rigid.
Because of the internal structure, the wear rate of AT is much higher than that of AT. Generally, the service life of AT is about 100,000 kilometers, and there is no need for overhaul.
Moreover, in the case of modern traffic congestion, the dual-clutch gearbox will stop and go, shift gears frequently, and the wear will become bigger and bigger. Usually, it has to be repaired before it reaches 100 thousand kilometers, and even needs to be replaced with a new clutch, which is why its life will be shorter than that of AT gearbox.
2. The AT gearbox has better stability and lower maintenance cost.
In fact, this is related to its internal structure, one is non-rigid connection and the other is rigid connection. Moreover, the maintenance cost of at gearbox in the later period is relatively low, and it is usually only necessary to change the oil of the gearbox. Therefore, as long as the owner takes good care of it and does not drive too hard in daily use, there will basically be no big problem.
However, because the dual-clutch gearbox changes gears too many times, it will cause internal wear, and the cost of overhaul is very high. Moreover, the dual-clutch gearbox is different from the manual gearbox, and the manual gearbox is damaged. Just change a part or clutch plate, but the dual-clutch gearbox may have to be completely replaced.
Although powershift is more fuel-efficient, its maintenance cost will also affect its fuel consumption. This is not to say that you can’t buy a dry powershift. Just be careful when driving, and don’t drive too hard. If there is a traffic jam, you can also choose manual mode.
Second, AT gearbox has a better reputation.
These two transmissions have a history of more than 100 years, but their development processes are different. Since the AT transmission was invented, many people have improved it. Powershift, on the other hand, was widely used more than 30 years ago.
Therefore, the stability of AT gearbox will be better, the technology will be more mature, and the transmission efficiency of dual-clutch gearbox will be higher, but from the perspective of durability and economy, AT gearbox may have more advantages.
Before this, there was a data analysis. Through the summary of statistics and opinions about automobile gearboxes, it was found that seven of the top ten gearboxes with the highest complaint frequency were dual-clutch gearboxes, and only one of them was at gearboxes. Therefore, if we look at the stability and reputation of gearbox quality, AT gearbox may be better.
No matter what kind of gearbox it is, it has its own advantages and disadvantages. The most important thing is that the owner should avoid using violence and develop good driving habits when driving. Only in this way, the service life of the gearbox will be longer, thus reducing the maintenance cost. Both gearboxes have been precipitated by the market and have been continuously improved and optimized for several years. Therefore, the main reason lies in the good or bad driving habits.
