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A method for fuel efficiency classification of agricultural tractors
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: Paper number 131621100, 2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131621100) @2013
Authors: Changseop Shin, Kyeong U. Kim
Keywords: Fuel efficiency classification Agricultural tractor
Abstract. A general method was proposed to classify fuel efficiency of agricultural tractors using fuel consumption data taken from the OECD tractor test report. The classification index comprised of four sub-indexes was designed to reflect operational characteristics of tractors and manufacturer’s fuel saving technology embedded in tractors. It was also intended to have tractors distributed normally over the classification grades. The weightings for the sub-indexes, number of classification grades and updating period of the index value were also discussed. The proposed method was applied to classify fuel efficiency of tractors in Korea into a five-grade system with 15% for the 1st, 20% for the 2nd, 30% for the 3rd, 20% for the 4th, and 15% for the 5th grades, respectively. The index values for each grade were calculated on the basis of performance data of 131 tractors tested over the five-year period from 2006 to 2010 and given as a function of rated PTO power. The classification results showed a reasonable distribution of tractors over the grades as intended. The proposed method can be utilized flexibly by assigning proper weightings to the sub-indexes depending on the classification purpose.
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