DOI QR코드

DOI QR Code

Investigation of Electric Vehicle Performance Affected by Cabin Heating

실내 난방이 전기 자동차 주행 성능에 미치는 영향 조사

  • Kim, Kibum (Division of Mechanical Engineering, Chungbuk National University) ;
  • Lee, Wan-Seong (Division of Mechanical Engineering, Chungbuk National University) ;
  • Kim, Yong-Yun (Division of Mechanical Engineering, Chungbuk National University)
  • Received : 2013.07.18
  • Accepted : 2013.10.10
  • Published : 2013.10.31

Abstract

Compared with internal combustion engine, the electric vehicle has a limitation of low driving range due to low battery capacity due to relatively low energy density. Moreover, the energy consumption rapidly increases up to 30% during winter season with operating electric heater. In this study, electric vehicle performance was evaluated using heat pump having higher energy efficiency rather than electric heater for cabin heating. Electric vehicle system and heat pump system were developed using 1-D simulation software called AMESim, the simulation result indicated that the energy consumption could be reduced approximately 66% when the electric heating system was replaced with the heat pump system. As a result, the driving range is expected to increase the similar value. This study proved the merit of heat pump for cabin heating in electric vehicle, and it could contribute to developing suitable heating method for electric vehicles.

기존 내연기관에 비해 전기자동차가 가지는 한계 중 하나는 에너지 밀도가 상대적으로 낮은 배터리로 인한 짧은 주행거리이며, 겨울철 실내 난방을 위하여 전기 히터 사용 시, 전기 소모량이 30%이상 증가하는 문제가 발생한다. 본 연구에서는 전기 히터보다 에너지 효율이 우수한 히트펌프를 이용하여 난방 시, 전기 자동차의 주행성능 변화를 조사하였다. 일차원 해석 프로그램인 AMESim Software를 이용하여 전기자동차의 구동시스템 및 히트펌프의 해석모델을 개발하였고, 해석 결과 전기 히터를 히트펌프로 대체하면, 배터리 소모량이 약 50% 감소하여 그 만큼의 주행거리를 증가시킬 수 있는 것으로 나타났다. 본 연구 결과는 전기자동차 난방을 위한 히트펌프의 장점을 입증하였으며, 향후 전기 자동차 난방 대책의 비전을 제시하는데 기여할 것으로 사료된다.

Keywords

References

  1. K. Umezu, H. Noyana, "Air Conditioning System for Electric Vehicles, i-MiEV", JSAE 2010 annual conference, 2010.
  2. H. Noyana, "Joint On-Road Monitoring of i-MiEV New Generation Electric Vehicle with Power Companies", Mitsubishi Motors Technical Review No. 21, pp. 22-29, 2010.
  3. Y. Choi, W. Lee, M. Park, Y. Choi, "Heating Performance Evaluations for Development of Heat Pump System on Battery Electric Vehicle", KSAE Vol(11), pp. 559-563, 2011
  4. K. Kim, S. Kim, M. Kim, "Experimental studies on the heating performance and efficiency for electric vehicle", KSAE Vol(5), pp. 1871-1876, 2010
  5. I. Choi, J. Song, Y. Kim, J. Choi, K. Lee, " Evaluation of the Cooling and Heating Capacity of a CO2 Heat Pump System for Electric Vehicles" KSAE Vol(5), pp. 435-439, 2012
  6. H. Park, B. Lee, Y. Chang, S. Lee, "Development of High Efficient Heating system using waste heat source", KSAE Conference, pp. 1050-1055, 2012

Cited by

  1. A Numerical Study on the Light-Weight Design of PTC Heater for an Electric Vehicle Heating System vol.11, pp.5, 2018, https://doi.org/10.3390/en11051276