Jeffersonville, OH | Red Pete - 3/5/2025 22:17
Been looking at information about CVT transmissions. It's my understanding that a CVT transmission contains a differential connected to a hydrostatic motor that turns in reverse thus varying the speed by increasing the speed of the hydrostat motor. This connected to a powershift gearbox controlled by a computer provides seamless speed change though a range of speeds. This should provide nearly direct drive characteristics when the hydrostat motor is not turning. Am I on the right track here? Is there anything that tells you what percent the hydro is turning so you could maximize efficiency under a heavy drawbar load?
Who's CVT are you talking about? An AGCO CVT (FENDT, MF, Challenger, AGCO) doesn't have any powershift gearbox included in it's CVT...
Deere IVT does have a 2 speed powershift for range change, in my experience, right in the middle of your working gear range.
Some of the CNH had 4 speed ranges, some didn't.
They are not all created equal.
Chris |
How does a CVT transmission work
