Abstract
The aim of this study is to enhance the fuel economy of a continuously variable tractor transmission by analyzing its energy and fuel consumption. First, we present the principle of a self-developed tractor transmission based on power splitting and examine its parasitic power characteristics. Next, we construct a mathematical model of the hydraulic system, mechanical system, and entire transmission, calibrating the model to ensure the accuracy of subsequent results. We then perform a systematic analysis of the energy and fuel consumption of the tractor transmission. Finally, we optimize the transmission through design and power matching, investigating the impact of changes in parameters and control strategies on the fuel economy of the transmission. The results indicate that fuel consumption can be reduced by 2%–14% through parameter optimization and by an additional 0%–20% through appropriate power matching.
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