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