Mainly, the automatic gearbox works by using a roller clutch for routine upshifts/downshifts. It operates much like a ratchet. It transmits the torque only in a single way by free-wheeling or overrunning in the other. The advantage of this type of clutch is it removes the potential of simultaneously implementing https://gearboxauto13333.vidublog.com/32834096/the-ultimate-guide-to-gearbox-auto