Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Study on Fuel Economy Characteristics of Plug-In Hybrid Electric Vehicle by Cumulative Distance

누적 주행거리에 따른 플러그인 하이브리드 자동차의 연비 특성 연구

  • PARK, JINSUNG (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • LIM, JAEHYUK (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • KIM, KIHO (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority) ;
  • LEE, JUNGMIN (Research Institute of Petroleum Technology, Korea Petroleum Quality & Distribution Authority)
  • 박진성 (한국석유관리원 석유기술연구소) ;
  • 임재혁 (한국석유관리원 석유기술연구소) ;
  • 김기호 (한국석유관리원 석유기술연구소) ;
  • 이정민 (한국석유관리원 석유기술연구소)
  • Received : 2018.10.08
  • Accepted : 2018.12.30
  • Published : 2018.12.30
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Abstract

Electric vehicles are taken a long time to charge and are restricted driving where charging infrastructure was not sufficiently constructed. The vehicle developed to solve these problems is a plug-in hybrid vehicle. It is possible to drive a certain distance by using electric motor and when the battery runs out, it operate the engine. Plug-in hybrid vehicle have a complicated structure and a lot of parts comparing a general vehicle because the electric parts and the internal combustion engine are installed together. Therefore, as the aging (mileage) of the plug-in hybrid vehicle, the influence which change of fuel consumption is expected to be larger than a general vehicle, but an experimental data are lacking. In this paper, we cumulate a mileage of the plug-in hybrid vehicle about 15,000 km and measured the fuel economy when the cumulated distance reached within 160 km, 6,500 km, 15,000 km respectively, by using domestic public test method. For measuring fuel economy of the vehicle, CD mode (driving distance on a single charge) which use only motor and the CS mode which operate motor and combustion engine were measured respectively. As a result, the fuel economy slightly increased at cumulated mileage of 6,500 km compared to the 160 km and the fuel economy of 15,000 km was similar to 160 km.

Keywords

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Fig. 1. Schematic diagram of gasoline vehicle emission measurement system

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Fig. 2. Comparison of fuel economy (CS mode) at each cumulative mileage

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Fig. 3. Comparison of fuel economy (CD mode) at each cumulative mileage

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Fig. 4. Comparison of driving distance on a single charge at each cumulative mileage

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Fig. 5. Comparison of Rcda (actual charge-depleting cycle range) and electric current requirement per Rcda at each cumulative mileage

Table 1. Specifications of test vehicles

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Table 2. Specifications of dynamometer system

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Table 3. Specification of the emission analyzer

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Table 4. Key features of the fuel economy test mode

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Table 5. Resistive force against 160 km

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References

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