AT stands for automatic transmission, automatic transmission, also known as automatic transmission.
The automatic transmission is composed of hydraulic twister, planetary gear transmission and control mechanism.
It automatically shifts gears and torque according to road conditions, allowing drivers to keep their eyes on the road without being distracted by shifting gears.
AT structure Compared with manual transmission, hydraulic automatic transmission (AT) in the structure and use are very different.
Manual main automatic transmission is composed of gear and shaft, through different gear combinations to produce variable speed and torque;
AT is composed of hydraulic torque changer, planetary gear and hydraulic control system, through hydraulic transmission and gear combination to achieve variable speed and torque.
The hydraulic twister is the most characteristic part of AT, which is composed of pump wheel, turbine and regulating wheel and other components, directly input the engine power transmission torque and clutch action.
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