Analysis of Current Hybrid-Electric Automobile Drivetrains and Proposal of an Alternative Powertrain

Andrew Ahn, T. Welles, B. Akih-Kumgeh
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Abstract

Byproducts of fossil fuel combustion contribute to negative changes in the global climate. Specifically, emissions from automobiles are a major source of greenhouse gas pollution. Efforts to minimize these harmful emissions have led to the development and sustained improvement of hybrid drivetrains in automobiles. Despite many advancements, however, hybrid systems still face substantial challenges which bear on their practicality, performance, and competitive disadvantage in view of the low cost of today’s traditional internal combustion engines. These imperfections notwithstanding, hybrid electric vehicles have the potential to play significant roles in the future as cleaner transportation solutions. Actualization of this potential will depend on the ability of hybrid-electric vehicles to minimize their disadvantages while increasing their positive features relative to traditional combustion engines. This research investigates current hybrid electric architectures in automobiles with the aim of suggesting an alternative, more efficient hybrid configuration that utilizes current technology. This is completed by utilizing an iterative design process to compare how various components of existing hybrids can be combined and/or improved to develop a single, efficient and cohesive system that performs comparably to or surpasses existing ones in fuel efficiency and low emissions in all driving conditions. A critical and comparative analysis is provided based on current hybrid-electric vehicle architectures as well as a plausible alternative.
当前混合动力汽车动力系统的分析及替代动力系统的提出
化石燃料燃烧的副产品对全球气候产生负面影响。具体来说,汽车排放是温室气体污染的主要来源。减少这些有害排放物的努力导致了汽车混合动力传动系统的发展和持续改进。然而,尽管取得了许多进步,但混合动力系统仍然面临着实质性的挑战,这些挑战涉及到其实用性、性能和竞争劣势,因为当今传统内燃机的成本较低。尽管存在这些不完善之处,但混合动力汽车在未来作为更清洁的交通解决方案有可能发挥重要作用。实现这一潜力将取决于混合动力汽车的能力,以尽量减少其缺点,同时增加其优点相对于传统内燃机。本研究调查了当前汽车中的混合动力架构,目的是提出一种利用当前技术的替代、更高效的混合动力配置。这是通过利用迭代设计过程来比较现有混合动力车的各种组件如何组合和/或改进,以开发一个单一的、高效的、有凝聚力的系统来完成的,该系统在所有驾驶条件下的燃油效率和低排放方面与现有系统相当或超过现有系统。基于当前的混合动力汽车架构以及合理的替代方案,提供了关键和比较分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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