US Patent 9333997 Articulated tracked vehicle

An articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit controllably connected by means of a control member, wherein each vehicle unit comprises two driven tracks driven by drive wheels and has one electric motor per track for driving respective drive wheel via drive shafts for propulsion of the vehicle, wherein the first vehicle unit comprises a combustion engine, wherein the combustion engine is arranged to drive a generator for electric power generation, wherein the generator is arranged to transfer electric power via power electronics to the electric motors of each vehicle unit, wherein propulsion of the vehicle is arranged to be effected only electrically, and wherein power transfer between said vehicle units is arranged to be effected only electrically.