Paper Info
Title
Real-time battery thermal management for electric vehicles
Abstract
Electric vehicles (EVs) are powered by a large number of battery cells, requiring an effective battery management system (BMS) to maintain the battery cells in an operational condition while providing the necessary power efficiently. Temperature is one of the most important factors for battery operation, and existing BMSes have thus employed simple thermal management policies so as to prevent battery cells from very high and low temperatures which may likely cause their explosion and malfunction, respectively. In this paper, we study thermo-physical characteristics of battery cells, and design a battery thermal management system that achieves efficiency and reliability by active thermal controls. We first analyze the effect of a temperature change on the basic operation of a battery cell. We then show how it can cause thermal and general problems, e.g., a thermal runaway that results in explosion of battery cells, and unbalanced state of charge (SoC) that degrades battery cells' performance. Based on this understanding of thermal behavior, we finally develop temperature-control approaches which are then used to design a battery thermal management system. Our simulation results demonstrate that the proposed thermal management system improves battery performance by up to 58.4% without compromising reliability over the existing simple thermal management.
Year
DOI
Venue
2014
10.1109/ICCPS.2014.6843712
Cyber-Physical Systems
Keywords
Field
DocType
battery management systems,battery powered vehicles,temperature control,thermal management (packaging),BMS,SoC,active thermal control,battery cells,battery management system,electric vehicles,real-time battery thermal management system,temperature-control,thermal behavior,thermo-physical characteristics,unbalanced state of charge
Thermal,Computer science,Thermal runaway,Battery management systems,Thermal management of electronic devices and systems,Electronic engineering,Battery (electricity),Trickle charging,Automotive battery,State of charge
Conference
ISSN
Citations 
PageRank 
2375-8317
12
1.17
References 
Authors
7
3
Name
Order
Citations
PageRank
Eugene Kim1245.56
Kang G. Shin2140551487.46
JinKyu Lee361554.04