Primarily, the automatic gearbox employs a roller clutch for schedule upshifts/downshifts. It operates the same as a ratchet. It transmits the torque only in a single way by absolutely free-wheeling or overrunning in the other. The advantage of this type of clutch is the fact that it removes the opportunity https://johnathanvvsqn.bloggazza.com/32825843/the-fact-about-gearbox-auto-that-no-one-is-suggesting