Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Prediction of Vehicle Fuel Consumption on a Component Basis

가솔린 차량의 각 요소별 연료소모량 예측

  • 송해박 (아주대학교 기계공학과) ;
  • 유정철 (아주대학교 기계공학과) ;
  • 이종화 (아주대학교 기계 및 산업공학부) ;
  • 박경석 (금오공과대학교 기계공학과)
  • Published : 2003.03.01
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Abstract

A simulation study was carried to analyze the vehicle fuel consumption on component basis. Experiments was also carried out to identify the simulation results, under FTP-75 Hot Phase driving conditions. and arbitrary driving conditions. A good quantitative agreement was obtained. Based on the simulation, fuel energy was used in pumping loss(3.7%), electric power generation(0.7%), engine friction(12.7%), engine inertia(0.7%), torque converter loss(4.6%), drivetrain friction(0.6%), road-load(9.2%), and vehicle inertia(13.4%) under FTP-75 Hot Phase driving conditions. Using simulation program, the effects of capacity factor and idle speed on fuel consumption were estimated. A increment of capacity factor of torque converter resulted in fuel consumption improvement under FTP-75 Hot Phase driving conditions. Effect of a decrement of idle speed on fuel consumption was negligible under the identical driving conditions.

Keywords

References

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