多看汽車知識，你的大腦將不可逆的變聰明。接下來兩年半，我將帶你搞懂所有汽車知識，今天我們講變速箱的區別，問你個問題 AT 雙離合 CVT 手動擋到底誰更好，今天就帶你一次性搞清楚：

　　By reading more about car knowledge, your brain will irreversibly become smarter. In the next two and a half years, I will take you to understand all the knowledge about cars. Today, we will talk about the difference between gearboxes and ask you a question: which is better, AT dual clutch CVT manual transmission? Today, I will take you to figure it out at once:

　　第一手動變速箱也叫 MT 屬于老司機的快樂，卻是新手的噩夢。手動擋可以說是最原始也最直接的變速箱，優點很硬，核，比如傳動效率極高，省油結構簡單，故障率低，維修便宜，而且換擋完全由你掌控，駕駛參與感拉滿，但缺點也很明顯，需要手腳并用市區堵車，能把腿踩抽筋，還有坡道起步。容易熄火，對新手不友好。如今在家用車上越來越少見，主要是為駕駛愛好者或特定車型保留。

　　The first manual transmission, also known as MT, is a joy for experienced drivers, but a nightmare for beginners. Manual transmission can be said to be the most primitive and direct gearbox, with many advantages, such as extremely high transmission efficiency, simple fuel saving structure, low failure rate, cheap maintenance, and completely controlled gear shifting. The driving experience is full, but the disadvantages are also very obvious, requiring both hands and feet to use in urban traffic jams, leg cramps, and starting on slopes. Easy to stall, unfriendly to beginners. Nowadays, it is becoming increasingly rare in family cars, mainly reserved for driving enthusiasts or specific vehicle models.

　　第二自動變速箱也叫 at 人送外號皮實耐用的全能戰士 at 變速箱靠液力變矩器和行星齒輪組工作。液力變矩器讓動力連接很柔和，所以它極其耐用。故障率低，而且低速時能放大扭矩，配上能扛大扭矩的行星齒輪，讓它成了越野車和許多中高端車的首選。大部分坦克用的也是 AT 你可以自豪的給別人說自己用的坦克同款，它的缺點是結構復雜，導致成本高，專利也多，所以車價貴。另外，市區低速行駛時油耗偏高。換擋會有點頓挫感。

　　The second automatic transmission, also known as the AT, is nicknamed the sturdy and durable all rounder. The AT transmission works with a hydraulic torque converter and planetary gear set. The hydraulic torque converter makes the power connection very smooth, so it is extremely durable. With a low failure rate and the ability to amplify torque at low speeds, coupled with planetary gears that can withstand high torque, it has become the preferred choice for off-road vehicles and many mid to high end cars. Most tanks also use AT, and you can proudly tell others that you use the same type of tank. Its disadvantage is that its structure is complex, resulting in high costs and multiple patents, so the car price is expensive. In addition, fuel consumption is relatively high when driving at low speeds in urban areas. Shifting gears may feel a bit jerky.

　　第三雙離合變速箱也叫 DCT，它是又快又省的雙面手雙離合，顧名思義有兩套離合器交替工作，換擋速度極快，傳動效率高，所以特別省油，提速也快。它分干式和濕式干式雙離合傳動效率最高，最省油，但離合器片，散熱式短板，適合高速，國道等通暢路況。在頻繁走走停停的擁堵路況下，容易因離合器過熱而頓挫，甚至故障。濕式雙離合用油液包裹離合器片散熱好更穩定，能適應更多路況，但傳動效率和油耗表現會比干式稍遜一籌，成本也更高。

　　The third dual clutch transmission, also known as DCT, is a fast and efficient double-sided manual dual clutch transmission. As the name suggests, it has two sets of clutches working alternately, with extremely fast shifting speed and high transmission efficiency, making it particularly fuel-efficient and fast in acceleration. It is divided into dry and wet dry dual clutch transmission with the highest efficiency and fuel efficiency, but the clutch plates and heat dissipation type short plates are suitable for smooth road conditions such as highways and national roads. In congested road conditions with frequent stops and starts, it is easy for the clutch to experience jerking or even malfunction due to overheating. Wet dual clutch clutch fluid wrapped clutch plates have better and more stable heat dissipation, and can adapt to more road conditions, but their transmission efficiency and fuel consumption performance may be slightly inferior to dry type, and the cost is also higher.

　　第四種無級變速箱也叫 CVT。它是平順省油的市區通勤王 CVT，沒有固定檔位，通過鋼帶和追輪實現無級變速，優勢是極其平順，毫無頓挫，且市區低速行駛時非常省油，但它無法承受太大扭矩，激烈駕駛或經常大腳油門容易導致鋼帶打滑甚至損傷。因此，它通常與小排量發動機搭檔，最適合追求舒適，主要在市區代步的用車場景，不知道你有沒有聽過當 CVT 介入的恐怖傳說。

　　The fourth type of continuously variable transmission is also called CVT. It is a smooth and fuel-efficient urban commuting king CVT, with no fixed gears and continuously variable transmission achieved through steel belts and chasing wheels. Its advantage is extremely smooth, without any jerks, and it is very fuel-efficient when driving at low speeds in urban areas. However, it cannot withstand too much torque, and intense driving or frequent heavy throttle can easily cause steel belt slippage or even damage. Therefore, it is usually paired with a small displacement engine, which is most suitable for pursuing comfort and is mainly used in urban commuting scenarios. Have you heard of the terrifying legend of CVT intervention.

　　最后總結一下怎么選？追求駕駛樂趣不怕麻煩選手動檔預算充足圖，省心耐用，長跑爛路或越野首選 AT 變速箱主要跑高速國道。追求提速快和油耗低，干式雙離合是優選市區代步為主，看重平順，舒適和省油 CVT 變速箱最合適，啥路況都跑，想要均衡表現，可考慮濕式雙離合。

　　Finally, summarize how to choose? Pursuing driving pleasure without fear of trouble, the athlete has sufficient budget for dynamic transmission, which is worry free and durable. The AT gearbox is the preferred choice for long-distance running or off-road driving, mainly on highways and national roads. Pursuing fast acceleration and low fuel consumption, dry dual clutch transmission is the preferred choice for urban commuting, emphasizing smoothness, comfort, and fuel efficiency. CVT transmission is the most suitable for driving on any road conditions. If you want balanced performance, wet dual clutch transmission can be considered.