Powering the Future: Advanced Battery Management Systems (BMS) for Electric Vehicles

This paper introduces a novel approach for rapidly balancing lithium-ion batteries using a single DC–DC converter, enabling direct energy transfer between high- and low-voltage cells. Utilizing relays for cell pair selection ensures cost-effectiveness in the switch network. The control system integr...

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Vydáno v:Energies (Basel) Ročník 17; číslo 14; s. 3360
Hlavní autoři: Krishna, T. N. V., Kumar, Seelam V. S. V. Prabhu Deva, Srinivasa Rao, Sunkara, Chang, Liuchen
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 01.07.2024
Témata:
Automobiles, Electric
battery management system (BMS)
cell balancing
Communication
Comparative analysis
Computer organization
Control systems
DC–DC converter
Efficiency
Electric vehicles
Hybrid vehicles
MCU
Methods
Renewable resources
Temperature
ISSN:1996-1073, 1996-1073
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Shrnutí:This paper introduces a novel approach for rapidly balancing lithium-ion batteries using a single DC–DC converter, enabling direct energy transfer between high- and low-voltage cells. Utilizing relays for cell pair selection ensures cost-effectiveness in the switch network. The control system integrates a battery-monitoring IC and an MCU to oversee cell voltage and ensure battery protection. A prototype circuit with twelve lithium-ion batteries demonstrates the method’s efficacy, achieving a remarkable balancing time of 48 min during charging with a maximum efficiency of 89.85%. Comparative analysis with other methods underscores the superior performance of the proposed balancing circuit in terms of balancing time and implementation cost. Furthermore, this paper delves into hardware aspects of battery management systems (BMSs) for electric vehicles and stationary applications. It offers an overview of prevailing concepts in state-of-the-art systems, aiding readers in assessing considerations essential for BMS design in various applications. The discussion includes examples of battery packs sourced from commercially available electric vehicles. Subsequently, the manuscript addresses implementation aspects concerning the measurement of critical physical variables such as voltage, current, and temperature, alongside balancing strategies.
Bibliografie:ObjectType-Article-1
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content type line 14
ISSN:1996-1073
1996-1073
DOI:10.3390/en17143360