Type selection, matching and simulation of plug-in series hybrid electric car

Taking a plug-in series hybrid electric car as example, based on definite vehicle performance and system architecture, the type selection and optimization matching for its electric drive system, energy storage system and auxiliary power unit are conducted and the optimal working points of engine are determined. By adopting UDC and NEDC driving cycle defined in national standard, driving cycle for light vehicles and constant speed driving cycle respectively, verification simulations on vehicle performance and fuel economy are carried out based on the simulation model built. The results show that with all three driving cycles, the power system scheme determined can well meet the requirements of vehicle performance and fuel economy.