In the market, it is found that in the past two years, there are fewer and fewer cars with AT transmissions, and many of them have been replaced by ATs with dual-clutch transmissions. Just like the classic model of the Camry, it was also replaced by a dual-clutch from AT. In addition, models using dual clutches on the market have also occupied a considerable proportion.
In terms of stability, the stability of AT and dual-clutch automatic transmissions is unquestionable at present, and it is the best among these transmissions. However, in addition to the inherent advantages of stability, AT transmissions have other aspects. It does have its inherent disadvantages, especially in terms of transmission efficiency. Because the AT transmission is a soft connection, it relies on hydraulic torque to achieve power transmission, so the transmission efficiency is worse than that of dual clutch.
The iterative progress of other automatic clutch actuator technologies is also very fast, especially the progress of the dual-clutch automatic transmission is very fast. In the past few years, due to a large number of dry-type dual-clutches, Volkswagen caused many problems with dry-type dual-clutch at that time. However, in recent years, due to the increasing number of players entering the game with dual clutches, and the fact that dual clutches themselves have evolved from manual transmissions, there are not so many patents and technical barriers, especially after the improvement of the heat dissipation problem of wet dual clutches. The shifting efficiency of the upper double clutch is higher than that of AT. Although the stability is slightly worse than that of AT, the gap in stability and life span is only 20,000 kilometers a year for most of our ordinary vehicles. It doesn't feel so obvious anymore.
Because new energy vehicles are quite different from traditional fuel vehicles in terms of structure, especially in the transmission, because new energy vehicles and traditional fuel vehicles are not a technical route at all in terms of engine transmission, and new energy vehicles do not need the transmission of traditional fuel vehicles at all, so it is bound to cause some impact to these traditional fuel transmission manufacturers, and it will also cause a certain blow to their enthusiasm for research and development.
In addition, many countries have clearly proposed a timetable for banning the sale of fuel vehicles, which means that once the sale of fuel vehicles is banned, some traditional fuel vehicle transmissions will be produced and sold to whom they must face a transformation. Therefore, under the influence of the comprehensive factors of cost, market, technology and future market expectations, more and more manufacturers are choosing to replace the AT transmission with a more cost-effective dual-clutch transmission. Only on higher-priced models, because the profit of the car itself is relatively high, it is not necessary to be too demanding about the cost when building a car, and an AT transmission that is more stable and more acceptable to everyone will be selected.