Design and Evaluation of a Cost-Effective BMS for CERYAN Using Nuvoton

Year 2025, Volume: 18 Issue: 3, 876 - 891

Seda Kul , Abdurrahman Özgür Polat , Şevval Yorulmaz Atay , Seyit Alperen Çeltek

Abstract

The development of Electric Vehicles (EVs) has also accelerated the advancement of battery technology. A Battery Management System (BMS) is essential to use batteries in EVs safely and efficiently. The basic functions of a BMS include measurement, monitoring, and balancing. In the rapidly growing field of micromobility, achieving cost-effective balancing requires high-accuracy measurements. In this study, a BMS design was made with a Nuvoton NUC131 microcontroller for CERYAN, an L6e light electric vehicle, and was evaluated in terms of measurement, performance, and cost. As a result, Since the unit cost of the Nuvoton microcontroller is approximately 30% cheaper compared to STM32Fx, one of the most used microcontrollers, the unit cost of the designed BMS prototype is 27% cheaper. In addition, the ADC measurement error is approximately 0.7 mV, which allows accurate measurement of cell voltages and efficient balancing.

Keywords

Battery management system , electric vehicle , microcontroller , Nuvoton , BMS

Ethical Statement

There are no ethical issues regarding the publication of this study.

Supporting Institution

This research was supported by the KOSGEB R&D Innovation Project (Project Number: sCAPE2018)

Project Number

sCAPE2018

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