[Ether]

Originally Posted by pntbll1313

In my head that number was from rolling resistance because of carpet compression...

That would have been my first guess. But I prefer not to guess. I'm trying to trace the etymology of the phrase back to its source.

I found it in another paper too called wheel/floor efficiency http://www.chiefdelphi.com/media/papers/2750

I did a quick search of both documents there and couldn't find it. Does anyone know: Who coined that phrase, and when and where? And in practical application, how is it supposed to be different from the widely used term "rolling resistance"?

In the drivetrain acceleration model located here,
rolling resistance is modeled with a constant parameter Kro and a speed-dependent parameter Krv.