NOVELTY - Electric traction vehicle (1) comprises at least one pair of driving wheels (3); electronic power converter (13) which pilots the electric machine; a storage system (14) for storing electric energy, connected to electronic power converter and comprising at least one storage device (15); passenger compartment; and cooling system (20) completely independent and separated from air conditioning system of the passenger compartment and utilizing compression refrigeration cycle to cool at least one of electric components, i.e. electric machine (8), electronic power converter and storage system (14).    USE - Electric traction vehicle.    ADVANTAGE - The vehicle utilizes cooling system that is simple and low cost, having small overall dimensions and capable of providing efficient, effective cooling of all electric components in all possible operative circumstances without any negative effect on air conditioning system of the passenger compartment of vehicle. The cooling system allows to run electric components at a lower temperature than the ambient temperature with an even considerable increase of efficiency and specific power.    DETAILED DESCRIPTION - Electric traction vehicle (1) comprises at least one pair of driving wheels (3); at least one reversible electric machine (8) mechanically connected to driving wheels; electronic power converter (13) which pilots the electric machine; a storage system (14) for storing electric energy, connected to electronic power converter and comprising at least one storage device (15); passenger compartment; air conditioning system (18) of the passenger compartment regulating temperature inside passenger compartment; and cooling system (20) completely independent and separated from air conditioning system of the passenger compartment and utilizing compression refrigeration cycle to cool at least one of electric components, i.e. electric machine (8), electronic power converter and storage system (14). The vehicle in the cooling system comprises compressor (22) actuated directly by shaft (17) of the electric machine.    DESCRIPTION OF DRAWING(S) - The drawing shows a diagrammatic view of the cooling system of the electric component of the hybrid vehicle.    Driving wheels (3)    Electric machine (8)    Reversible electric machine (8)    Electronic power converter (13)    Storage system (14)    Storage device (15)    Shaft (17)    Air conditioning system (18)    Cooling system (20)    Compressor (22)