Correct understanding of dual-clutch transmission! Does the dry type have an advantage over the wet type?
Among the many transmissions, the DSG transmission has become the standard equipment of Volkswagen, and both the entry-level dry and intermediate and high-end wet transmissions have also made great progress in recent years. So which one should choose between wet and dry dual-clutch? Today, I will take you to a simple analysis!
To be precise, the two have their own merits and characteristics. Among them, the closer the friction plate of the dry dual-clutch transmission, the better the power transmission, and when the friction plate is separated, the power of the car will be disconnected, which is equivalent to neutral gear, that is, N gear. Since the dry dual clutch transmits power through the friction plate, in theory, the power transmission effect of the dry dual clutch is better, the fuel consumption is lower, and the cost of the dry dual clutch is relatively low, so it is basically the standard configuration of some low-end cars. However, its disadvantages are also particularly obvious, because without oil immersion, the dry dual-clutch is prone to high temperatures. If you drive in a traffic jam for a long time, the clutch must be constantly combined and disconnected, and over time, the friction plate will be easy to heat up, causing transmission failure.
In contrast, the wet dual-clutch gearbox in the power transmission work, part of the power loss in the resistance of the cooling oil, and the dry dual-clutch will not exist in this area of power loss, so the dry dual-clutch has more advantages in the fuel consumption of the car. In other advantages, for example, because the clutch plate is liquid-cooled, the heat transfer efficiency is high, so it has the advantage of good heat dissipation effect. Thanks to this guarantee, the clutch discs of wet dual-clutch transmissions can withstand large power transmission and can better adapt to more intense driving environments. Therefore, it can be matched with larger displacement engines. In addition, when following the car in the speed range of 15-25 km, the wet dual-clutch has more damping feeling, that is, everyone likes to be smooth, and the driving quality is better than that of the dry dual-clutch.
Overall, wet dual-clutch and dry dual-clutch have their own features and advantages, and consumers can choose the right type of transmission according to their actual needs. Therefore, it is not possible to generalize which gearbox is better, and the most important thing is to suit yourself.