Effects of Test Conditions on Fuel Economy of Gasoline-Powered Vehicle |
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| Authors: | Seokjoo Kwon Minkyung Kang Youngho Seo Sungwook Park |
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| Institution: | 1.Department of Mechanical Convergence Engineering,Graduate School of Hanyang University,Seoul,Korea;2.Green Car Power System R&D Division,Korea Automotive Technology Institute,Chungnam,Korea;3.School of Mechanical Engineering,Hanyang University,Seoul,Korea |
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| Abstract: | In this study, the influence on fuel economy testing of gasoline-powered vehicles is evaluated for various test conditions (e.g., laboratory temperature, soaking time, cooling fan, battery charge state, and driving mode tracking). It showed a difference in fuel economy results of approximately 3 % between low (88 %) and high (99 %) battery state of charge conditions because the alternator saving function has a positive effect on fuel economy. Fuel economy testing with laboratory temperature changes gave a slight reduction at 21 °C and slight increase at 29 °C. The cooling fan changes had an almost negligible effect on fuel consumption. The largest fuel economy result varied by 5.2 % in the soft, standard, and rough driving conditions. |
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