Data-Driven Methodologies for Battery State-of-Charge Observer Design

Author(s):  
Christoph Hametner ◽  
Stefan Jakubek
Author(s):  
Zhimin Xi ◽  
Rong Jing ◽  
Cheol Lee

This paper investigates recent research on battery diagnostics and prognostics especially for Lithium-ion (Li-ion) batteries. Battery diagnostics focuses on battery models and diagnosis algorithms for battery state of charge (SOC) and state of health (SOH) estimation. Battery prognostics elaborates data-driven prognosis algorithms for predicting the remaining useful life (RUL) of battery SOC and SOH. Readers will learn not only basics but also very recent research developments on battery diagnostics and prognostics.


Author(s):  
Seyed Mohammad Rezvanizanian ◽  
Yixiang Huang ◽  
Jiang Chuan ◽  
Jay Lee

This paper deals with mobility prediction of LiFeMnPO4 batteries for an emission-free Electric Vehicle. The data-driven model has been developed based on empirical data from two different road types –highway and local streets –and two different driving modes – aggressive and moderate. Battery State of Charge (SoC) can be predicted on any new roads based on the trained model by selecting the drving mode. In this paper, the performance of Adaptive Recurrent Neural Network (ARNN) and regression is evaluated using two benchmark data sets. The ARNN model at first estimates the speed profile of the new road based on slope and then both slope and speed is going to be used as the input to estimate battery current and SoC. Through comparison it is found that if ARNN system is appropriately trained, it performs with better accuracy than Regression in both two road types and driving modes. The results show that prediction SoC model follows the Columb-counting SoC according to the road slope.


2021 ◽  
Vol 483 ◽  
pp. 229108
Author(s):  
Marco Ragone ◽  
Vitaliy Yurkiv ◽  
Ajaykrishna Ramasubramanian ◽  
Babak Kashir ◽  
Farzad Mashayek

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