A PROPULSION ARRANGEMENT FOR SELF-POWERED DOLLY VEHICLE UNITS

A propulsion arrangement (400) for a self-powered dolly vehicle unit, the propulsion arrangement comprising a first electric machine (410), a second electric machine (420), a gearbox (430), and an open differential (450) for driving first and second wheels (310l, 310r) of a driven axle (470), wherein the first (410) and second (420) electric machines are arranged in parallel and connected to the open differential (430) via the gearbox (430) at respective gear ratios (g1, g2, g3).