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Policy makers, especially in the European Union, are pushing towards an early transition to electric mobility, with the internal combustion engine supposed to be phased out by 2030. With a world population projected to exceed 10 billion peoples by 2050, the electric car mobility still lacks the significant development needed to become a real alternative to the internal combustion engine based mobility. Resources availability, and environmental, energetic and economic downfalls, are currently largely underrated or simply unassessed. It is unclear how many will be able to afford to purchase and recharge an electric vehicle in this new world.

Direct injection and jet ignition is becoming popular in electrically assisted, turbocharged, F1 engines because of the pressure to reduce fuel consumption. Operation from homogeneous stoichiometric up to lean of stoichiometry stratified about λ = 1.5, occurs with fast combustion of reduced cyclic variability thanks to the enhanced ignition by multiple jets of hot, partially reacting products travelling through the combustion chamber. The fuel consumption has thus been drastically reduced in an engine that is, however, still mostly throttle controlled. The aim of the present paper is to show the advantages of direct injection and jet ignition based on model simulations of the operation of a high-performance throttle-controlled engine featuring rotary valves.