AN ENDOTHERMIC/ELECTRIC HYBRID PROPULSION SYSTEM FOR A VEHICLE

An endothermic/electric hybrid propulsion system for a vehicle comprises a first propulsion unit, of the electrical type, provided with at least a first electric machine (EM) coupled to a transmission shaft, a second propulsion unit, of the hybrid type, provided with an output shaft and comprising at least one internal combustion engine (ICE) and at least one second electric machine (EM) which can be selectively coupled together to provide torque to the output shaft in an independent or combined manner and a coupling member operatively interposed between the output shaft of the second propulsion unit and the transmission shaft of the first propulsion unit.