![How automatic transmission works ? What happens when auto-transmission car is going down the hill ? - Quora How automatic transmission works ? What happens when auto-transmission car is going down the hill ? - Quora](https://qph.cf2.quoracdn.net/main-qimg-f4d97fab727e6c25ffaf25590d0139d0.webp)
How automatic transmission works ? What happens when auto-transmission car is going down the hill ? - Quora
Why are geared automatic transmission box dominantly planetary, whereas manual transmission use no planetary gearbox at all? What's the cons using linear gearbox in AT and planetary gear box in MT? -
![Front planetary gear assembly with sun and ring gears, automatic transmission UA80 3572048070 3572006020 Front planetary gear assembly with sun and ring gears, automatic transmission UA80 3572048070 3572006020](https://akpp.com.ua/image/catalog/Photo/bga/IMG_3445_3572006020_s.jpg)
Front planetary gear assembly with sun and ring gears, automatic transmission UA80 3572048070 3572006020
![Planetary Gearsets Inside Vehicle Automatic Transmission. Close Up View In Mechanic Workshop During Repairing Stock Photo, Picture And Royalty Free Image. Image 139494354. Planetary Gearsets Inside Vehicle Automatic Transmission. Close Up View In Mechanic Workshop During Repairing Stock Photo, Picture And Royalty Free Image. Image 139494354.](https://previews.123rf.com/images/oskanov/oskanov2002/oskanov200200006/139494354-planetary-gearsets-inside-vehicle-automatic-transmission-close-up-view-in-mechanic-workshop-during-r.jpg)