How does an automobile transmission work?

The working principle of automobile transmission is to change the rotational speed and torque from the engine mechanism, fixed or split gear to change the output shaft and input shaft ratio. Transmission is divided into manual, automatic two kinds, manual transmission is mainly composed of gears and shafts, through different gear combinations to produce variable speed torque, and automatic transmission AT is composed of hydraulic torque converter, planetary gears and hydraulic manipulation system, through the hydraulic transmission and gear combinations to achieve variable speed torque. Principle of transmission: 1, manual transmission working principle by toggling the gearshift, switching the intermediate shaft on the active gear, through the size of different gear combinations with the power output shaft, so as to change the torque and speed of the driving wheels; 2, automatic transmission is the use of planetary gear mechanism for speed, according to the degree of accelerator pedal and speed changes, automatically change the speed, and the driver only need to manipulate the accelerator pedal to control the The driver only needs to manipulate the accelerator pedal to control the vehicle speed.