A comprehensive dynamic efficiency-enhanced energy management strategy for plug-in hybrid electric vehicles

Feng Wang, Jian Zhang, Xing Xu, Yingfeng Cai, Zhiguang Zhou and Xiaoqiang Sun

Applied Energy, 2019, vol. 247, issue C, 657-669

Abstract: This paper presents a comprehensive dynamic efficiency model for the overall powertrain efficiency that considers the internal combustion engine and electric motor generators in depth as well as a planetary coupling transmission system of PHEVs example. In particular, the dynamic forces of planetary coupling transmission system with an effect on the dynamic transmission efficiency are taken into consideration. Then a dynamic efficiency optimization strategy is proposed to improve the fuel economy, and an improved dynamic efficiency optimization strategy, consisting in adding to the dynamic efficiency optimization strategy a penalty coefficient, is applied to reach the trade-off between energy consumption and fatigue life of planetary coupling transmission system. Eventually, the dynamic efficiency optimization strategy and improved dynamic efficiency optimization strategy are validated by hardware-in-the-loop experiments. The main contribution of this study is to explore a novel way to optimize the comprehensive dynamic efficiency of whole powertrain, and also improve ride comfort by avoiding planetary coupling transmission system working in the inefficient resonance region.

Keywords: Plug-in hybrid electric vehicles; Dynamic efficiency optimization strategy; Dynamic transmission efficiency; Planetary coupling transmission system; Energy management strategy (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (20)

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DOI: 10.1016/j.apenergy.2019.04.016

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