6、ns,buttheshortfordrivingrange.Combinestheadvantagesofboth,thePlug-inHybridElectricVehicle(hereinafterreferredtoastheP-HEV)whichcanbechargedbyanexternalgridhasbecomearesearchhotspot.Basedon the research statusanddevelopmenttrend of the P-HEV technology ,to meetthegoalofvehicle
7、dynamicperformance and improve the vehicle ofeconomic performance,designtheP-HEV bus power systemwhichissuitablefor urbanconditions , anddesign thebus controlstrategy.Firstly, designthe keycomponents of theP-HEV bus power system,including theselectionmatchestheparameter of t
8、he engine,electricmotor,battery,and build the P-HEVbusmodelinsoftwar