Analysis on inconsistency of electric bicycle battery pack

Author

Yu Zhao ; Weige Zhang ; Jiuchun Jiang ; Ting Zhao ; Feng Wen

Author_Institution

Nat. Active Distrib. Network Technol. Res. Center (NANTEC), Beijing Jiaotong Univ., Beijing, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

5

Abstract

Inconsistency of electric bicycle battery pack which has been used for 2 years under the actual driving cycle is analyzed from the three aspects: Firstly, the necessity of battery equalization is analysed by the criterion based on capacity and energy utilization efficiency; Secondly, the estimated error of SOC caused by the offset of OCV-SOC curves for inconsistency of batteries is analyzed, propose a solution by compensation SOC in different intervals based on the battery of most serious capacity recession. Finally, we analyze the difference of rate characteristic of single cells and the reason for accelerating the inconsistency.

Keywords

electric vehicles; energy conservation; secondary cells; OCV-SOC curves; battery equalization; capacity recession; electric bicycle battery pack; energy utilization efficiency; Acceleration; Batteries; Electric vehicles; Market research; Mathematical model; Standards; System-on-chip; Inconsistency of battery pack; SOC error analysis; capacity & energy utilization efficiency; rate;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6941063

Filename

6941063