通过乘用车的动力系统电气化量化车磨损颗粒物排放的变化
William Hicks1, David C Green2, Sean Beevers2
1MRC Centre for Environment and Health, Environmental Research Group, Imperial College London, UK.
Environmental pollution (Barking, Essex : 1987)
|August 18, 2023
概括
再生制动系统在电动和混合动力车辆中显著减少了64-95%的制动磨损颗粒物 (PM) 排放. 这种过渡支持更清洁的空气,尽管增加的车辆质量可能会引入其他环境考虑因素.
科学领域:
- 环境科学 环境科学
- 汽车工程 汽车工程
- 空气质量研究 空气质量研究
背景情况:
- 车辆车队正在从内燃机 (ICE) 转向电动动力系统.
- 车磨损颗粒物 (PM) 排放是一个重大的环境问题.
- 再生式制动系统 (RBS) 为减少颗粒物排放提供了一个潜在的解决方案.
研究的目的:
- 预测再生制动系统 (RBS) 对车磨损颗粒物 (PM10和PM2.5) 排放的影响.
- 分析车辆类,驾驶风格和动力系统类型对车磨损的影响.
- 预测到2035年,英国车磨损对PM排放的潜在减少.
主要方法:
- 对各种车辆类别和驾驶风格进行了摩擦制动功率模拟.
- 该研究模拟了再生制动对颗粒物排放的影响.
- 对于电动动力系统,分析了城市,农村和高速公路驾驶条件的排放因子.
主要成果:
- 再生制动系统 (RBS) 能够减少64-95%的制动磨损,尽管电动和混合动力汽车的质量增加了.
- 电动动力系统显著减少了颗粒物排放 (在城市条件下平均为68%).
- 到2035年,英国车磨损的PM排放量与2020年水平相比,可能会减少39%.
结论:
- 转向使用RBS的电动和混合动力车队,对于减少车磨损的PM排放至关重要.
- 驾驶条件和积极的制动显著影响RBS在减轻车磨损方面的有效性.
- 由于车辆质量较高,轮胎和道路磨损的潜在增加可能会抵消一些减少颗粒物的好处.
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