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A Modified Heat Pump Air-Conditioning System for Electric Vehicle(改良式電動車熱泵空調系統)
  • 發布年度:2011
  • 主要類別:電動車與車輛電子
  • 次要類別:論文
  • Abstract. In the present electric or hybrid vehicle, a PTC heater is adopted to provide heating function. In order to overcome the drawback of low efficiency of the PTC heater, a modified heat pump system structure was proposed to recover the waste heat which is generated by the subsystems of the electric vehicle. The recovered heat is transferred by the refrigerant and used to heat up the air that enters the cabin. In this paper, the electric vehicle battery pack is chosen as the target subsystem. A battery cell model was coded on the SC/Tetra platform and corrected according to the experiment data. The simulation results showed that the maximum heat generated by the battery modules (176 cells) under 1.5C discharging is about 356 W which could reduce 20% of the heat absorbed from the environment if a complete battery pack (400 cells) is used.

    Keywords: Electric vehicle, Automatic air-conditioning system, Battery temperature variation