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Classification of Agricultural Tractors According to the Energy Efficiencies of the Engine and the Transmission Based on OECD Tests

机译:基于OECD测试的发动机和变速箱能量效率对农用拖拉机的分类

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摘要

A general goal of more energy efficiency encourages the use of tractors with better energy performance. Energy losses in agricultural tractors occur principally in the engine and secondarily in the transmission. In a previous article the authors proposed an efficiency index (c jt ) using some theoretical assumptions and applied it for 214 models of tractors sold in Spain by mid-2006. In this article a new efficiency index (c kt ) that better represents the relationship between fuel consumption and available energy in the tractors was derived from official tests that follow the OECD codes. This index also considers the rolling resistance to establish the transmission coefficient, and includes tractors with CVT (continuous variable transmission) taking into account the specific characteristics of this transmission
机译:提高能效的总目标鼓励使用具有更好能效的拖拉机。农用拖拉机的能量损失主要发生在发动机中,其次发生在变速器中。在先前的文章中,作者使用一些理论假设提出了效率指数(c jt ),并将其应用于2006年中之前在西班牙销售的214型号拖拉机。在这篇文章中,新的效率指数(c kt )可以更好地表示拖拉机中燃油消耗与可用能量之间的关系,是从遵循OECD法规的官方测试中得出的。该指数还考虑了滚动阻力来确定传动系数,并考虑到了CVT(无级变速器)的拖拉机的特性

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