Online Short-Term Remaining Useful Life Prediction of Fuel Cell Vehicles Based on Cloud System

Tiancai Ma, Jianmiao Xu, Ruitao Li, Naiyuan Yao and Yanbo Yang
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Tiancai Ma: School of Automotive Studies, Tongji University, Shanghai 201804, China
Jianmiao Xu: School of Automotive Studies, Tongji University, Shanghai 201804, China
Ruitao Li: School of Automotive Studies, Tongji University, Shanghai 201804, China
Naiyuan Yao: School of Automotive Studies, Tongji University, Shanghai 201804, China
Yanbo Yang: School of Automotive Studies, Tongji University, Shanghai 201804, China

Energies, 2021, vol. 14, issue 10, 1-17

Abstract: The durability of automotive fuel cells is one of the main factors restricting their commercial application. Therefore, establishing a remaining useful life (RUL) prediction model and developing an online operational method to apply it to the RUL optimization of fuel cell vehicles is an urgent academic problem. In this work, a short-term RUL prediction model and an online operation scheme for fuel cell vehicles are proposed. Firstly, based on historical data of a fuel cell bus under multiple conditions, the daily mode of stack voltage under a 75 A operation condition was selected as a health indicator that could better reflect the health status of a fuel cell stack. Then, an adaptive locally weighted scatterplot smoothing (LOWESS) algorithm was developed to adjust the most appropriate step size to smooth the original data automatically. Furthermore, for better prediction accuracy and stronger adaptability, a short-term RUL prediction model consisting of the adaptive LOWESS and bi-directional long short-term memory was established. Finally, an online operation scheme of the RUL prediction model based on a cloud system gave the model a strong powerful practicability. After validation, this work demonstrated good application prospects in the prognostic and health management of automotive fuel cells.

Keywords: proton exchange membrane fuel cell; cloud system; short-term RUL prediction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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