Thermal management with fast temperature convergence based on optimized fuzzy PID algorithm for electric vehicle battery

Zhangmiaoge Liu, Zhouxiao Liu, Jianzhao Liu and Ning Wang

Applied Energy, 2023, vol. 352, issue C, No S0306261923013004

Abstract: In this study, we propose an optimized fuzzy proportional-integral-differential (Fuzzy PID) algorithm used in a rapid temperature control system for automotive batteries. Based on the proposed algorithm, an intelligent thermal management system with temperature feedback mechanism is built by switchable thermoelectric (TE) devices in working mode, simultaneously offering both heating and cooling capabilities. Assisted by liquid cooling optimization, the battery pack temperature is rapidly converged by the regulation of TE devices. Experimental results demonstrate that the temperature of a thermal runaway battery pack can be lowered from 63.5 °C to 25 °C in just 280 s, while the temperature of a frozen battery pack can be raised from −10 °C to 25 °C within 185 s. Compared to multi-channel liquid cooling method, our temperature control time is reduced by approximately 76%. The innovative structure and optimized temperature control algorithm can obviously enhance the efficiency of the battery temperature control system in new energy electric vehicle field.

Keywords: Electric vehicle battery; Fuzzy PID algorithm; Thermal management (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (2)

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DOI: 10.1016/j.apenergy.2023.121936

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