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A study on opportune reduction in greenhouse gas emissions via adoption of electric drive vehicles in light duty vehicle fleets

机译：通过在轻型车辆车队中采用电动车辆来减少温室气体排放的研究

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Electrified powertrain vehicles have the potential to bring about significant reductions in greenhouse gas (GHG) emissions in light-duty vehicle fleets as they replace conventional vehicles. Compared to electrified powertrains, a conventional vehicle (CV), whose driving power only comes from an internal combustion engine (ICE), is in many ways disadvantaged when in driven in conditions that involve frequent stops or idling. As a result, the amount of achievable reduction in GHG by replacing a CV with one that has an electrified powertrain can vary significantly depending on the driving patterns in which the vehicle is expected to be driven in. This work analyzes more than 65 thousand real-world trips from California household travel survey (CHTS) in order to highlight and quantify the differential benefit in opportune reduction of GHG emissions. Equivalent GHG emissions are estimated using a public-domain fuel economy simulations software for each trip if it was done on a mid-sized CV, a matching hybrid-electric vehicle (HEV), two different all-electric range (AER) plug-in hybrid electric vehicles (PHEVs), as well as a pure battery-electric vehicle (BEV). A clustering approach is used to discern sub-populations of vehicle samples in CHTS data set into four vehicle groups, ordered from least to most city-like driving patterns. Results show that replacing a CV in the group with city-like driving could reduce the GHG emissions by appreciably larger amounts (approx. two to three times) than in the group with less city-like driving.
机译：电动动力总成车辆有潜力显着减少轻型车辆车队的温室气体（GHG）排放，因为它们取代了传统车辆。与电动动力总成相比，传统汽车（CV）的驱动力仅来自内燃机（ICE），在涉及频繁停车或空转的条件下驾驶时，在许多方面都处于不利地位。结果，通过将CV替换为具有电动动力总成的CV可以实现的温室气体减排量可能会因预期驾驶车辆的驾驶模式而有很大差异。这项工作分析了超过65,000辆真实汽车，加利福尼亚家庭旅行调查（CHTS）进行的世界旅行，目的是突出并量化在适当减少温室气体排放量方面的不同收益。如果是在中型CV，匹配的混合动力汽车（HEV），两个不同的全电动范围（AER）插件上完成的，则使用公共领域的燃油经济性模拟软件估算每次行程的等效温室气体排放量混合动力电动汽车（PHEV）以及纯电池电动汽车（BEV）。使用聚类方法将CHTS数据集中的车辆样本的子群体分为四个车辆组，从最小到大多数类似城市的驾驶模式。结果表明，与城市驾驶较少的人群相比，在城市驾驶的人群中替代CV可以减少温室气体排放量（约两倍至三倍）。

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