What is the role of the planetary gear mechanism in an automatic transmission?
1 Answers
The role of the planetary gear mechanism in an automatic transmission is: 1. To use clutches and brakes to change the relative motion relationships of the components within the planetary gear mechanism; 2. To achieve different gear transmissions, altering the transmission ratio and direction. The planetary gear mechanism consists of a sun gear, ring gear, planetary carrier, and planet gears. The working principles of the planetary gear mechanism are: 1. Power is input from the sun gear and output from the ring gear, with the planetary carrier locked by the mechanism; 2. Power is input from the sun gear and output from the planetary carrier, with the ring gear locked; 3. Power is input from the planetary carrier and output from the sun gear, with the ring gear locked; 4. Power is input from the planetary carrier and output from the ring gear, with the sun gear locked.