在各种环境温度下模拟自行车轮胎的短暂滚动阻力
Jukka Hyttinen1,2, Malte Rothhämel2, Jenny Jerrelind2
1Scania CV AB, Södertälje, Sweden.
PloS one
|June 27, 2024
概括
这项研究引入了一种新型模型,用于模拟由环境温度影响的自行车滚动阻力和电池容量. 结果显示,在寒冷的天气中,能源需求显著增加,这影响了电动自行车的续航里程和通勤者的选择.
科学领域:
- 工程 工程师 工程师 工程师
- 可持续的运输可持续的运输
- 热力学是一种热力学.
背景情况:
- 滚动阻力显著影响电动自行车的续航里程和通勤决策.
- 环境温度影响滚动阻力,影响能源需求.
- 现有的模型不能动态模拟基于温度的自行车滚动阻力.
研究的目的:
- 开发和介绍一种新型模型,以模拟自行车轮胎的暂时滚动阻力作为环境温度的函数.
- 评估环境温度对电动自行车续航里程和电池容量的影响.
- 为了解和量化不同气候下能源消耗提供一个工具.
主要方法:
- 创建了一个动态模型来计算轮胎温度,考虑热传递 (滚动阻力,对流和辐射冷却).
- 为了标准化测试,为自行车通勤者建立了一个代表性的驾驶周期.
- 进行了模拟,以评估环境温度对滚动阻力和电池容量的影响.
主要成果:
- 模拟显示,与中等温度 (+20°C) 相比,在非常低的环境温度 (-30°C) 中,能源需求显著增加.
- 降低轮胎温度会导致滚动阻力增加和电池容量减少.
- 该模型成功模拟了基于环境温度的自行车动态能源消耗.
结论:
- 开发的模型提供了对不同温度下影响自行车能源消耗的因素的全面了解.
- 该模型可以帮助设计电动自行车,为各种气候提供适当的电池容量.
- 交通规划人员可以利用该模型来评估基础设施对自行车通勤动机的影响.
相关概念视频
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01:30Dry Friction
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