This development will require the optimisation of a highly efficient gasoline engine, relying on a dual dilution combustion approach with excess air and EGR, synergizing an innovative in-cylinder charge motion with high pressure injection, novel ignition technologies, and an electrified turbocharger particularly relevant for hybrid architectures. The potential of alternative fuels produced by P2X processes will also be considered. To achieve the targeted near-zero emissions in transient conditions specific to PHEV in real driving conditions, the demonstrator vehicle will be equipped with a complete and dedicated after-treatment system including an electrically heated catalyst, a SCR and a GPF for abating NOx, particle number down to 10 nm, and non-regulated gaseous emissions.

The vehicle overall efficiency will be increased with an exhaust waste heat recovery system for generating an additional electric power contribution for cabin heating or cooling, or for reducing the switch-on time of the internal combustion engine in cold conditions, thereby limiting the engine-out pollutant emissions such as particles.

Virtual methods will be employed to reduce the calibration time of all the vehicle sub-systems. The vehicle control will use all the flexibility of the hybrid architecture and sub-systems to lower in real time the driving emissions and fuel consumption.