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http://dx.doi.org/10.5307/JBE.2002.27.1.019

Characteristics of Power Efficiency of Tractor Driveline  

류일훈 (School of Bioresources and Materials Engineering Seoul National University)
김대철 (School of Bioresources and Materials Engineering Seoul National University)
김경욱 (School of Bioresources and Materials Engineering Seoul National University)
Publication Information
Journal of Biosystems Engineering / v.27, no.1, 2002 , pp. 19-24 More about this Journal
Abstract
According to the field test, the transient power transmission efficiency of a tractor driveline fluctuated in a range of 56 to 86% and the mean value was about 72.5%. Therefore, the constant efficiency model commonly used for a simulation of power performance was not proper far predicting such a variable of efficiency. In order to predict power efficiency more accurately, new concepts of the maximum efficiency and drag torque were introduced and a new model based on the these concepts was proposed. The difference between measured and model-predicted efficiencies was about 1.5% in average with a standard deviation of 1.1%. The new power efficiency model was expected to enhance the accuracy of predicting power transmission efficiencies of tractor drivelines.
Keywords
Power driveline; Transmission efficiency; Drag torque; Agricultural tractor;
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