自動變速箱根據(jù)換擋邏輯可分為手動自動，傳統(tǒng)自動，雙離合，無級變速，電子檔位。

Automatic transmissions can be divided into manual automatic, traditional automatic, dual clutch, continuously variable transmission, and electronic gears based on shifting logic.

　　(1)手動自動變速箱已經(jīng)開始使用多片離合與行星齒輪機構(gòu)，但換擋過程仍需人為撥動檔桿操作，即電控單元并未實現(xiàn)自動化，只是省略了傳統(tǒng)離合器的操作。這種變速箱由于便利度低且成本高，現(xiàn)在已經(jīng)淘汰。但是手動自動是早提出電控換擋概念的變速箱。

(1) Manual and automatic transmissions have begun to use multi plate clutches and planetary gear mechanisms, but the shifting process still requires manual shifting of the gear lever, meaning that the electronic control unit has not been automated and only omits the operation of traditional clutches. This type of gearbox has been phased out due to its low convenience and high cost. However, manual and automatic transmission was the earliest to propose the concept of electronic gear shifting.

　　(2)傳統(tǒng)自動變速箱屬于目前應(yīng)用范圍廣且技術(shù)兼容度的自動變速箱，因為其原理簡便直接，并且電控自動換擋技術(shù)成熟，所以適用于不同動力需求與檔位需求的車輛。但是，由于不同標定邏輯這種變速箱在不同產(chǎn)品上的表現(xiàn)差異巨大，行駛品質(zhì)也不同。優(yōu)點主要是換擋直接，無需人為操作，更易發(fā)揮車輛極限性能，缺點就是由于調(diào)教不同，油耗較高，同時全工況響應(yīng)速度可能較慢。

(2) Traditional automatic transmissions are currently the most widely used and technologically compatible automatic transmissions. Due to their simple and direct principles, as well as mature electronic automatic shifting technology, they are suitable for vehicles with different power and gear requirements. However, due to different calibration logic, the performance of this type of gearbox varies greatly on different products, and the driving quality also varies. The main advantage is that the gear shift is direct, without the need for manual operation, making it easier to maximize the vehicle's performance. The disadvantage is that due to different tuning, fuel consumption is higher, and the response speed under all working conditions may be slower.

　　(3)雙離合變速箱采用雙片離合奇偶檔位預(yù)判的邏輯，優(yōu)點是在激烈駕駛或極限動力輸出時，可以大大減小變速箱換擋間隔，動力輸出更為連續(xù)，且扭矩承受能力較大，缺點是由于標定原因，在正常工況下由于雙離合自動預(yù)判檔位不一定符合需求，易產(chǎn)生較大頓挫感，且由于摩擦點較多，故障率相對較高。

(3) The dual clutch transmission adopts the logic of dual clutch odd and even gear prediction. The advantage is that it can greatly reduce the shifting interval of the transmission during intense driving or extreme power output, make the power output more continuous, and have a greater torque bearing capacity. The disadvantage is that due to calibration reasons, under normal working conditions, the automatic gear prediction of the dual clutch may not necessarily meet the requirements, which can easily cause significant jerking, and due to the many friction points, the failure rate is relatively high.

　　(3)無級變速變速箱以日系車為主，采用錐輪鋼帶鏈接結(jié)構(gòu)，通過改變錐輪直徑移動鋼帶實現(xiàn)連續(xù)變速變矩，優(yōu)點是行駛平順性極好，且更易發(fā)揮發(fā)動機功率，全工況提速較快的同時油耗較低，缺點是由于不同調(diào)教，在原地起步時可能會初段扭矩限制導(dǎo)致前段提速較慢不線性，同時受制于結(jié)構(gòu)，變速箱不能承受過大扭矩。

(3) The continuously variable transmission is mainly used in Japanese cars and adopts a cone-shaped wheel steel belt connection structure. By changing the diameter of the cone-shaped wheel and moving the steel belt to achieve continuous speed and torque change, it has the advantages of excellent driving smoothness and easier performance of the engine's optimal power. It accelerates quickly under all working conditions while reducing fuel consumption. The disadvantage is that due to different tuning, there may be initial torque limitations when starting in place, resulting in slow and non-linear acceleration in the front section. At the same time, due to structural constraints, the transmission cannot withstand excessive torque.

　　(4)電子檔位多用于強調(diào)舒適家用的混動車，采用雙電機直連行星齒輪結(jié)構(gòu)匹配阿特金森循環(huán)汽油機，優(yōu)點是平順性較好，響應(yīng)較快的同時，扭矩輸出更為直接，并且由于行星齒輪結(jié)構(gòu)，更利于能量回收，缺點是由于屬于新型技術(shù)，成本較高。

(4) Electronic gears are often used in hybrid vehicles that emphasize comfort for household use. They adopt a dual motor directly connected planetary gear structure matched with an Atkinson cycle gasoline engine. The advantages are good smoothness, fast response, and more direct torque output. Due to the planetary gear structure, it is more conducive to energy recovery. The disadvantage is that it belongs to a new technology and has higher costs.

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