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Utilization of battery-electric vehicles in two-car households: Empirical insights from Gothenburg Sweden
Transportation Research Part C: Emerging Technologies ( IF 7.6 ) Pub Date : 2020-10-05 , DOI: 10.1016/j.trc.2020.102818
Sten Karlsson

Two-car households with one conventional and one battery electric vehicle (EV) have an opportunity to partially circumvent the range limitations of a modest-range battery-electric vehicle through flexible use. To investigate the extent to which real-world households utilize this flexibility, we used from 20 two-car households in the Gothenburg area in Sweden, GPS data from before and during an EV trial in which the households were asked to temporarily replace one of their two conventional cars with a short-range EV for the duration of the trial. The actual household electric drive fraction, i.e., the EV distance as a share of the total two-car household driving distance varied between 30 and 70%, with a household mean of 47%. On average, this corresponds to 80% of the estimated potential household electric drive fraction during the trial. We quantify the flexibility in choosing the EV as the difference in distance between the potential, and the minimum needed, EV driving. For below-range (≤120 km) home-to-home non-overlapping trips, the households used 69% of that flexibility. For household trips that did overlap in time, they used 56% of the flexibility. Thus, the EV is the preferred vehicle, but the preference is less obvious for overlapping trips. Our analysis implies an even more dominant role for the EV in weekend driving. Further, although the pre-trial data showed a large difference in the household shares of distances driven between a (later in the EV trial) replaced “first” car and a replaced “second” car, this difference disappears when an EV replaces either one.



中文翻译:

两车家庭中电动汽车的使用:来自瑞典哥德堡的经验

拥有一辆传统电动车和一辆电池电动车(EV)的两车家庭有机会通过灵活使用部分规避中等档次电池电动车的行驶距离限制。为了调查现实生活中的家庭利用这种灵活性的程度,我们使用了瑞典哥德堡地区的20个两辆汽车的家庭,通过EV试验之前和期间的GPS数据,要求这些家庭临时替换其中一个在试验期间,有两辆常规电动汽车具有短程EV。实际的家庭电动驾驶比例,即,EV距离在两辆汽车的家庭驾驶总距离中所占的比例在30%至70%之间,家庭平均为47%。平均而言,这相当于试验期间估计的潜在家用电力驱动比例的80%。我们将选择EV的灵活性量化为电位与所需的最小EV驱动之间的距离差。对于低于范围(≤120 km)的家庭到家庭非重叠旅行,家庭使用了69%的灵活性。对于确实在时间上重叠的家庭旅行,他们使用了56%的灵活性。因此,EV是首选车辆,但对于重叠行程而言,偏好并不明显。我们的分析表明,电动汽车在周末驾驶中将发挥更大的主导作用。此外,尽管预审数据显示(在电动汽车试验中较晚)替换的“第一”汽车和替换的“第二”汽车之间的行驶距离的家庭份额差异很大,但是当电动汽车替换其中任何一辆时,这种差异就会消失。以及所需的最低限度,EV驾驶。对于低于范围(≤120 km)的家庭到家庭非重叠旅行,家庭使用了69%的灵活性。对于确实在时间上重叠的家庭旅行,他们使用了56%的灵活性。因此,EV是首选车辆,但对于重叠行程而言,偏好并不明显。我们的分析表明,电动汽车在周末驾驶中将发挥更大的主导作用。此外,尽管预审数据显示(在电动汽车试验中较晚)替换的“第一”汽车和替换的“第二”汽车之间的行驶距离的家庭份额差异很大,但是当电动汽车替换其中任何一辆时,这种差异就会消失。以及所需的最低限度,EV驾驶。对于低于范围(≤120 km)的家庭到家庭非重叠旅行,家庭使用了69%的灵活性。对于确实在时间上重叠的家庭旅行,他们使用了56%的灵活性。因此,EV是首选车辆,但对于重叠行程而言,偏好并不明显。我们的分析表明,电动汽车在周末驾驶中将发挥更大的主导作用。此外,尽管预审数据显示(在电动汽车试验中较晚)替换的“第一”汽车和替换的“第二”汽车之间的行驶距离的家庭份额差异很大,但是当电动汽车替换其中任何一辆时,这种差异就会消失。EV是首选车辆,但对于重叠行程,偏好并不明显。我们的分析表明,电动汽车在周末驾驶中将发挥更大的主导作用。此外,尽管预审数据显示(在电动汽车试验中较晚)替换的“第一”汽车和替换的“第二”汽车之间的行驶距离的家庭份额差异很大,但是当电动汽车替换其中任何一辆时,这种差异就会消失。EV是首选车辆,但对于重叠行程,偏好并不明显。我们的分析表明,电动汽车在周末驾驶中将发挥更大的主导作用。此外,尽管预审数据显示(在电动汽车试验中较晚)替换的“第一”汽车和替换的“第二”汽车之间的行驶距离的家庭份额差异很大,但是当电动汽车替换其中任何一辆时,这种差异就会消失。

更新日期:2020-10-05
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