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What is the difference between 9AT and 6AT?

1 Answers

VonCamille

07/30/25 7:44am

The difference between 9AT and 6AT is: the 9AT transmission has more gears, and its transmission efficiency is higher than that of the 6AT transmission, while also offering better fuel economy. More details are as follows: 1. The AT transmission is the most mature and widely used transmission, providing smoother gear shifts and better reliability and stability. 2. The AT transmission relies on planetary gears for speed and torque changes, and it contains many planetary gears inside. There are three common types of automatic transmissions: AT transmission, CVT transmission, and dual-clutch transmission. 3. The dual-clutch transmission is currently a popular transmission type, known for its high transmission efficiency and fast gear shifts. Its structure is similar to that of a manual transmission, with the addition of a gear-shift control mechanism and an extra clutch. One clutch controls the odd-numbered gears, while the other controls the even-numbered gears. 4. The CVT transmission has a different structure compared to conventional transmissions. It consists of two cone pulleys and a steel belt, providing smooth gear shifts and good reliability and stability. The CVT transmission allows the engine to maintain an optimal RPM range, thereby improving the vehicle's fuel efficiency.

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