This remarkable bit of gearing has appeared on HowStuffWorks prior to. You might figure out it from the electric screwdriver posting. An automatic transmission is made up of two full planetary gearsets folded collectively into a single component. See How Equipment Ratios Get the job done for an introduction to https://louisuuqmg.blogscribble.com/34230772/the-basic-principles-of-gearbox-auto