Next Article in Journal
Web Management of Electric Vehicle Fleets
Previous Article in Journal
Impact of electromobility on automotive architectures
Article Menu

Article Versions

Export Article

World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Design and Implementation of a Smart Lithium-Ion Battery Capacity Estimation System for E-Bike

1
Department of Electrical Engineering, Kao Yuan University
2
Department of Mechanical and Automation Engineering, Kao Yuan University No.1821, Jhongshan Rd., Lujhu Township, Kaohsiung County 821, Taiwan
*
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(2), 370-378; https://doi.org/10.3390/wevj4020370
Published: 25 June 2010
PDF [529 KB, uploaded 17 May 2018]

Abstract

This paper proposes a smart lithium-ion battery capacity estimation method for electric bicycles. Battery capacity information informs the electric vehicle driver of the residual battery working time, thus facilitating the estimation of mileage of electric bicycle and timing of battery charging to avoid overcharging or over-discharging. Factors such as different discharge rates, environmental temperature, battery charge and discharge efficiency and battery aging affect the released capacity of battery, which is an electrochemical reaction of battery. In addition to integrating the advantages of the coulometric measurement and open circuit voltage measurement methods, and the proposed smart lithium-ion battery capacity estimator also incorporates discharge current, temperature, battery aging, as well as charging efficiency factors into capacity correction to develop a highly accurate PIC single-chip lithium-ion battery capacity estimation system.
Keywords: Lithium-ion battery; coulometric measurement; open circuit voltage; state of charge Lithium-ion battery; coulometric measurement; open circuit voltage; state of charge
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Liu, Y.-C.; Chang, S.-B. Design and Implementation of a Smart Lithium-Ion Battery Capacity Estimation System for E-Bike. World Electr. Veh. J. 2010, 4, 370-378.

Show more citation formats Show less citations formats

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
World Electr. Veh. J. EISSN 2032-6653 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top