How to choose AT, CVT and dual-clutch automatic transmission family car!

Family carThere are generally three types of gearboxes, AT, CVT and dual clutch. American GM and Ford generally use AT, Japanese mostly use CVT (AT), German mostly use dry dual clutch (self-priming is matching Aisin 6AT), Korean mostly use AT and dual clutch, and domestic majority. What kind of gearbox is good? Each has its advantages and disadvantages! Let’s share our choices about:

AT gearbox

1. love letter AT. The external sales of this gearbox should be the most. The quality and stability market can show that some domestic models are also equipped with Aisin 6AT and 8AT. This brand AT has smooth gear shifting, good fuel economy and can adapt well to different road conditions. Among them, 6AT is divided into high and low power versions, which seems to be the low power version, but it is completely sufficient for the self-priming engine, and it is equipped with the high power version.

2. ZF 8AT. This gearbox has strong performance and high efficiency, and is basically used in German luxury brands, such as BMW 3, 5 and 7 series, and some models are also equipped.

3. Universal 9AT. This gearbox has a moderate upper and lower speed, but the throttle response is fast after the speed goes up. Secondly, Ford 8AT was developed in cooperation with GM, and one group was reduced on the basis of 9AT.

4. Modern 6AT and 8AT. Modern AT has strong stability and good ride comfort. Because the modern gearbox and engine are not only developed by themselves, but also the control programs of the engine and gearbox are developed by themselves, they feel good ride comfort when driving, and generally carry their own models.

5. Fuzhen 8AT. The first self-developed AT gearbox in China, many AT gearboxes are basically in the hands of international first-line car companies. Under such circumstances, it is very difficult to develop AT, which is worthy of admiration. Just like, this is not something that can be done overnight, but a long-term persistence. The new engine 2.0T is equipped with this gearbox.

6. AT gearbox structure. Mainly planetary gears, generally there are several groups of planetary gears with several gears. The power output by the engine is transmitted by the oil in the hydraulic torque converter in the gearbox, and it will lock up when the speed reaches a certain level. Compared with dual clutch, AT has smaller volume and more mature technology.

continuously variable transmission

CVT gearbox, two combinations, chain or steel belt is in the middle of two vertebrae, and the chain type can bear more than the steel belt type. The advantages of CVT are better ride comfort in power transmission than dual clutch, low cost and fuel economy. Disadvantages can not bear large torque, family cars are generally CVT, luxury cars rarely use CVT. Pro uses steel chain CVT, which is not easy to slip compared with steel belt type.

Dual clutch and manual gearbox are somewhat similar. Double clutch can be divided into wet clutch and dry clutch. The main difference between dry clutch and wet clutch is that the oil is added around the clutch plate, so the heat dissipation is relatively better. Theoretically, wet clutch is better than dry clutch. The advantages of dual clutch are fast shifting and high power transmission efficiency. The disadvantage is thAT the smoothness of at and CVT gearboxes is slightly worse. Most models under 150,000 are dual-clutch, but due to the fast shift, most of them use dual-clutch gearbox, but the quality is definitely higher.

summary

There are no perfect products, only products that suit you! Among the three, AT is more comprehensive, combining the advantages of CVT and dual clutch, but it is expensive, while CVT and dual clutch have their own advantages and disadvantages.

This article is purely personal sharing, thank you for reading!

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