Abstract

The main aim of this study is to analyze the fuel saving possibilities of optimized gear shifting strategies in a vehicle with a flex-fuel engine powered by both ethanol and gasoline when submitted to a real-world driving cycle. A computational model is implemented and, for each fuel option, an optimization problem is solved aiming at minimization of fuel consumption and traveling time. The standard and optimized gear shifting strategies obtained are experimentally evaluated where the new gear shifting shows a significant fuel consumption reduction without a significant increase in traveling time.

中文翻译：

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在真实驾驶条件下应用于灵活燃料汽车的换档优化

摘要

本研究的主要目的是分析在实际驾驶循环中使用由乙醇和汽油驱动的弹性燃料发动机的车辆中优化换档策略的燃油节省可能性。实施了一个计算模型，并针对每种燃料选项解决了一个优化问题，旨在最小化燃料消耗和行驶时间。对获得的标准和优化换档策略进行了实验评估，其中新的换档显示出显着的油耗降低，而行驶时间没有显着增加。