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Application of Improved Cooling & Heating System to Long-Range Electric Vehicles for Higher Power Efficiency.

Number: No 113

Author(s) : KIM J. Y., KIM Y. H., KIM J. W., KIM T.

Summary

The challenge for long-range electric vehicles is to increase the driving distance by maintaining the highest battery energy density level and by managing energy efficiently. An effective battery thermal management system is required to control the operating temperature of the battery for optimal battery energy density. For efficient energy management, more efficient cabin heating system is needed because they consume a lot of energy during winter. In this paper, the performance of the dual coolant-cooled battery cooling system was studied. In addition, the heat pump system that utilizes battery waste heat was studied to further improve the energy efficiency of the existing heat pump using the ambient air heat and power electric module waste heat. The results showed that a dual coolant-cooled battery cooling system combined with a radiator and Air Conditioning (AC) system can reduce power consumption by 75% at the ambient temperature of 15°C compared to using the AC system only. In addition, the use of battery waste heat in the heat pump system increased mileage by up to 9% at the low ambient temperature of -7°C.

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Pages: 9 p.

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Details

  • Original title: Application of Improved Cooling & Heating System to Long-Range Electric Vehicles for Higher Power Efficiency.
  • Record ID : 30029991
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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