Mainly, the automatic gearbox takes advantage of a roller clutch for routine upshifts/downshifts. It operates much like a ratchet. It transmits the torque only in a single path by free-wheeling or overrunning in one other. The advantage of such a clutch is that it eliminates the potential for concurrently implementing https://gearbox-auto69012.blogs100.com/34273720/the-ultimate-guide-to-gearbox-auto