High efficiency two stroke opposed piston engine for plug-in hybrid electric vehicle applications: Evaluation under homologation and real driving conditions

The potential of plug-in hybrid electric vehicles (PHEV) to reduce greenhouse gas emissions highly depends on the vehicle usage and electricity source. In addition, high costs battery pack components suppose a challenge manufacturers. However, internal combustion engine complexity can be reduced due its lower use as compared no-hybrid vehicles. This work evaluates new opposed piston 2-stroke engine, based rod-less innovative kinematics, in series PHEV architecture kinematics along different driving routes Europe. A 0D-vehicle model fed with experimental tests is used. size optimized under homologation conditions for two types. optimum case tested several real modes states charge. main contribution this demonstration CO2 cost an engine. results show that 24 kWh both platforms. Charge depleting mode shows 70% tailpipe reduction urban cycles 22% long travels version. sustaining 20% 2% distance respect spite manufacturing, LCA 52% charge 7% against case.