Author:
Wang Zexing,He Hongwen,Zhang Yang,Ji Shuang,Duan Zhihui
Abstract
Abstract
For hybrid electric vehicles, working mode division and shift schedule are two decisive factors affecting vehicle fuel economy. This paper introduces a method for vehicle working mode division and shift schedule determination on the basis of optimal system efficiency. The key index named ‘fuel-electricity conversion efficiency’ is defined and calculated. Via this method, unreasonable gear modes in specific working modes are excluded and the mode transition map and upshifting curves in each working mode are extracted. The simulation results demonstrate that, with the application of the single-motor multi-mode parallel hybrid power system, the proposed mode transition and shifting strategy can increase vehicle fuel economy by 12.99%.
Reference9 articles.
1. Mode shift map design and integrated energy management control of a multi-mode hybrid electric vehicle;Zhuang;Applied Energy,2017
2. Determination of vehicle working modes for global optimization energy management and evaluation of the economic performance for a certain control strategy;Xu;Energy,2022
3. Energy management strategies for hybrid electric vehicles: Review, classification, comparison, and outlook;Zhang;Energies,2020
4. Energy management of parallel hybrid electric vehicle based on fuzzy logic control strategies;Halima;Journal of Circuits, Systems and Computers,2023
5. Hierarchical energy management strategy considering switching schedule for a dual-mode hybrid electric vehicle;Liu;Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering,2022