This remarkable bit of gearing has appeared on HowStuffWorks just before. You may acknowledge it from the electric screwdriver posting. An automatic transmission consists of two comprehensive planetary gearsets folded alongside one another into a single part. See How Gear Ratios Function for an introduction to planetary gearsets. As electric https://brooksgoqqo.shotblogs.com/a-secret-weapon-for-gearbox-auto-48069548