A different system is usually to use a variable displacement pump.  If the pump is configured for small displacement, it creates a reduced quantity of oil stream, triggering the hydraulic motor(s) to turn much more slowly. Even so, a CVT performs quite in a different way to a traditional automated https://gearbox-cvt91346.blogspothub.com/31908210/the-smart-trick-of-gearbox-cvt-that-no-one-is-discussing