Abstract
Batteries have been widely applied in many high-power applications, such as electric vehicles (EVs) and hybrid electric vehicles, where a suitable battery management system (BMS) is vital in ensuring safe and reliable operation of batteries. This paper aims to give a brief review on several key technologies of BMS, including battery modelling, state estimation and battery charging. First, popular battery types used in EVs are surveyed, followed by the introduction of key technologies used in BMS. Various battery models, including the electric model, thermal model and coupled electro-thermal model are reviewed. Then, battery state estimations for the state of charge, state of health and internal temperature are comprehensively surveyed. Finally, several key and traditional battery charging approaches with associated optimization methods are discussed.
Highlights
Electric vehicles (EVs) and hybrid electric vehicles (HEVs) have been widely regarded as the most promising solutions to replace the conventional internal combustion (IC) engine-based vehicles, and the recent years have seenReceived September 30, 2017; accepted January 9, 2018Kailong LIU, Kang LI (✉)Qiao PENG School of Physics and Optoelectronic Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCheng ZHANG IDL, Warwick Manufacturing Group, University of Warwick, CV4 7AL Coventry, UK a rapid development of EV and HEV technologies
This paper aims to give a brief review of the key technologies especially for battery modelling, state estimation and battery charging in the battery management system (BMS) of EVs
Some key technologies including battery modelling, battery state estimation and battery charging which are required in designing an effective BMS in EVs will be surveyed
Summary
Electric vehicles (EVs) and hybrid electric vehicles (HEVs) have been widely regarded as the most promising solutions to replace the conventional internal combustion (IC) engine-based vehicles, and the recent years have seen. Key technologies in the BMS of EVs include the battery modelling, internal state estimation and battery charging. Some battery internal states, such as state of charge (SOC), state of health (SOH) and internal temperature, cannot be measured directly, while these states play important roles in managing the operation of batteries, and need to be monitored using proper estimation methods. This paper aims to give a brief review of the key technologies especially for battery modelling, state estimation and battery charging in the BMS of EVs. Recent approaches to tackle the problem of battery modelling of the electric and thermal characteristics are surveyed first.
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