Leveraging the benefits of ethanol-fueled advanced combustion and supervisory control optimization in hybrid biofuel-electric vehicles

Hao Zhang, Shang Liu, Nuo Lei, Qinhao Fan and Zhi Wang

Applied Energy, 2022, vol. 326, issue C, No S0306261922012909

Abstract: The advanced combustion-based dedicated hybrid engines (DHEs) operating with biofuels demonstrate great advantages to reduce greenhouse gas emissions. To explore the potential of this solution, the synergistic effect of bio-ethanol and spark-induced compression ignition (SICI) combustion with reliance on efficient supervisory control systems is evaluated for greenhouse gas (GHG) emission reduction. This article is pioneered with the forward engineering of SICI combustion engine for plug-in hybrid biofuel-electric vehicles (PHBEVs) by optimizing the high-efficiency region of SICI combustion system for the PHBEV with dynamic programming (DP)-based case studies, after which the DHE prototype is produced using one-dimension and three-dimension engine digital twin models. Further, experimental test data of the optimized DHE is used to model the PHBEV in GT-Suite and MATLAB/Simulink software, and its charge-sustaining (CS) performance with rule-based control and adaptive equivalent minimization control strategy (A-ECMS) under both homologation and real-world driving cycles is evaluated and compared with the offline DP. The results show that the SICI combustion engine-based PHBEV with ethanol blending from E20 to E100 can reduce the well-to-wheel (WTW) CO2 emissions by 28% to 75%, respectively, where more than 7% of the reduction is contributed by control system optimization using A-ECMS. Moreover, the digital twin-based simulation platform developed in this work can be applied to evaluate and optimize the advanced combustion engines and supervisory controllers for hybrid biofuel-electric vehicles.

Keywords: Plug-in hybrid biofuel-electric vehicle; Ethanol-fueled SICI combustion; Forward engineering; Digital twin model; Charge-sustaining control (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (5)

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DOI: 10.1016/j.apenergy.2022.120033

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