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Harnessing big data for estimating the energy consumption and driving range of electric vehicles

机译：利用大数据估算电动汽车的能耗和续驶里程

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Analyzing the factors that affect the energy efficiency of vehicles is crucial to the overall improvement of the environmental efficiency of the transport sector, one of the top polluting sectors at the global level. This study analyses the energy consumption rate (ECR) and driving range of battery electric vehicles (BEVs) and provides insight into the factors that affect their energy consumption by harnessing big data from real-world driving. The analysis relied on four data sources: (i) driving patterns collected from 741 drivers over a two-year period; (ii) drivers' characteristics; (iii) road type; (iv) weather conditions. The results of the analysis measure the mean ECR of BEVs at 0.183 kW h/km, underline a 34% increase in ECR and a 25% decrease in driving range in the winter with respect to the summer, and suggest the electricity tariff for BEVs to be cost efficient with respect to conventional ones. Moreover, the results of the analysis show that driving speed, acceleration and temperature have non-linear effects on the ECR, while season and precipitation level have a strong linear effect. The econometric model of the ECR of BEVs suggests that the optimal driving speed is between 45 and 56 km/h and the ideal temperature from an energy efficiency perspective is 14 degrees C. Clearly, the performance of BEVs highly depends on the driving environment, the driving patterns, and the weather conditions, and the findings from this study enlighten the consumers to be more informed and manufacturers to be more aware about the actual utilization of BEVs. (C) 2017 Published by Elsevier Ltd.
机译：分析影响车辆能效的因素对于全面改善运输部门的环境效率至关重要，而运输部门是全球一级污染最严重的部门之一。这项研究分析了电池电动汽车（BEV）的能源消耗率（ECR）和行驶里程，并通过利用来自现实驾驶的大数据来深入了解影响其能源消耗的因素。分析依赖于四个数据源：（i）在两年期间从741个驾驶员那里收集的驾驶模式； （ii）驾驶员的特征； （iii）道路类型； （iv）天气情况。分析结果表明，BEV的平均ECR为0.183 kW h / km，与冬季相比，冬季的ECR增加了34％，行驶里程减少了25％，并建议BEV的电价为相对于传统产品而言具有成本效益。此外，分析结果表明，行驶速度，加速度和温度对ECR具有非线性影响，而季节和降水水平则具有很强的线性影响。 BEV的ECR的计量模型表明，最佳驾驶速度在45至56 km / h之间，从能源效率的角度来看，理想温度为14摄氏度。显然，BEV的性能很大程度上取决于驾驶环境，驾驶模式，天气状况以及这项研究的发现启发了消费者，使他们更加了解情况，制造商也更加了解BEV的实际使用情况。 （C）2017由Elsevier Ltd.发布

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