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Energies 2017, 10(9), 1289; https://doi.org/10.3390/en10091289

Development of a New Battery Management System with an Independent Balance Module for Electrical Motorcycles

Electrical Engineering Department, National Chinyi University of Technology, No. 57, Sec. 2, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Received: 3 July 2017 / Revised: 14 August 2017 / Accepted: 26 August 2017 / Published: 29 August 2017
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Abstract

Conventional balance modules are integrated with the battery management system (BMS) and occupy a large area of the BMS system. In addition large balance currents generate high heating rates and require heat dissipation mechanisms. This study proposes an independent structure for the balance module. Specifically the balance module is removed from of the BMS and is integrated with an off board charger. A new BMS structure is therefore created with a simplified BMS inside the battery module and the heat dissipation requirement for the balance module could be easily met on the charger side. The design, fabrication and test of this new type of BMS on a 72 V heavy electric motorcycle application is detailed in the current work. The new BMS reduces the space and weight required for the BMS in the e-motorcycle. Complexity in the battery module or on the EV side is significantly reduced. The heat dissipation problem associated with the large balance current is also resolved by moving the balance module to the charger end. View Full-Text
Keywords: battery management system (BMS); active balance; e-motorcycle battery management system (BMS); active balance; e-motorcycle
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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).
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Lin, J.-C.M. Development of a New Battery Management System with an Independent Balance Module for Electrical Motorcycles. Energies 2017, 10, 1289.

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