Theoretical Performance of EV Range Extender Compared with Plugin Hybrid

Abstract

This paper shows that EV range-extender (RXT) with a trailer will provide better mileage than the plug-in hybrid (PHEV) when an appropriate system is used. A weekly driving pattern is assumed to be: 30 km (6 days a week), 100 km (1 day a week). The RXT system made for this evaluation is composed of a pure BEV and a trailer with an electric generator. Japan 10-15 mode is used for the calculation. The result shows that 35.4 kWh/weeks is obtained for RXT, while 36.5 kWh/week for PHEV. This would be the first evaluation of RXT based on the fuel economy.