Torque converter – cutaway perspective To deliver coupling and decoupling on the engine, a contemporary automatic transmission employs a torque converter in place of the friction clutch Utilized in a handbook transmission.[14][fifteen] Bigger gears supply much more velocity in lieu of torque, that's perfect for clean  driving around the freeway.  https://louisqrnjc.isblog.net/new-step-by-step-map-for-gearbox-auto-51292707