▎ 摘　　要

NOVELTY - Electric vehicle energy management system comprises PTC heater (10), heat pump air conditioner condenser (20), power battery (30), graphene electric heating sheet, and cooling loop. The cooling loop comprises main circuit, first branch and second branch. The main circuit comprises second water pump (40) and warm air core (50), the main circuit flows through the PTC heating heater and the heat pump condenser. The first branch comprises first water pump, and the first branch flows through power battery. The seat heating sheet is installed on the seat and can heat the seat. The graphene electric heating sheet comprising battery heating sheet and seat heating sheet that is installed on power battery, and capable of heating power battery. USE - Used as electric vehicle energy management system. ADVANTAGE - The system can quickly improve the battery temperature and the passenger cabin temperature under the low temperature condition, and improves the user experience. The PTC heater and the heat pump air conditioner condenser provide heat, which can be used for battery heating and passenger cabin warming, when the main circuit and the second branch communicate second cooling loop. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for control method of the electric vehicle energy management system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the electric vehicle energy management system. 3Nozzle 10Ptc heater 17Expansion water tank 18Three-way valve 20Heat pump air conditioner condenser 30Power battery 40Second water pump 50Warm wind core body 60First water pump