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Energies 2014, 7(8), 5177-5200; doi:10.3390/en7085177

Modeling and Parameterization of Fuel Economy in Heavy Duty Vehicles (HDVs)

Graduate School of Hanyang University, Seoul 133-791, Korea
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Received: 31 March 2014 / Revised: 12 July 2014 / Accepted: 4 August 2014 / Published: 13 August 2014
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Abstract

The present paper suggests fuel consumption modeling for HDVs based on the code from the Japanese Ministry of the Environment. Two interpolation models (inversed distance weighted (IDW) and Hermite) and three types of fuel efficiency maps (coarse, medium, and dense) were adopted to determine the most appropriate combination for further studies. Finally, sensitivity analysis studies were conducted to determine which parameters greatly impact the fuel efficiency prediction results for HDVs. While vitiating each parameter at specific percentages (±1%, ±3%, ±5%, ±10%), the change rate of the fuel efficiency results was analyzed, and the main factors affecting fuel efficiency were summarized. As a result, the Japanese transformation algorithm program showed good agreement with slightly increased prediction accuracy for the fuel efficiency test results when applying the Hermite interpolation method compared to IDW interpolation. The prediction accuracy of fuel efficiency remained unchanged regardless of the chosen fuel efficiency map data density. According to the sensitivity analysis study, three parameters (fuel consumption map data, driving force, and gross vehicle weight) have the greatest impact on fuel efficiency (±5% to ±10% changes). View Full-Text
Keywords: heavy duty vehicle (HDV); Japanese transformation algorithm program; inversed distance weighted (IDW) and Hermite interpolation method; fuel efficiency map; sensitivity analysis heavy duty vehicle (HDV); Japanese transformation algorithm program; inversed distance weighted (IDW) and Hermite interpolation method; fuel efficiency map; sensitivity analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Oh, Y.; Park, S. Modeling and Parameterization of Fuel Economy in Heavy Duty Vehicles (HDVs). Energies 2014, 7, 5177-5200.

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