Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles

This paper presents the design and hardware-in-the-loop (HIL) experimental validation of a data-driven estimation method for the state of charge (<i>SOC</i>) in the lithium-ion batteries used in hybrid electric vehicles (HEVs). The considered system features a 1.25 kWh 48 V lithium-ion b...

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Main Authors: Sara Luciani, Stefano Feraco, Angelo Bonfitto, Andrea Tonoli
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/10/22/2828
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author Sara Luciani
Stefano Feraco
Angelo Bonfitto
Andrea Tonoli
author_facet Sara Luciani
Stefano Feraco
Angelo Bonfitto
Andrea Tonoli
author_sort Sara Luciani
collection DOAJ
description This paper presents the design and hardware-in-the-loop (HIL) experimental validation of a data-driven estimation method for the state of charge (<i>SOC</i>) in the lithium-ion batteries used in hybrid electric vehicles (HEVs). The considered system features a 1.25 kWh 48 V lithium-ion battery that is numerically modeled via an RC equivalent circuit model that can also consider the environmental temperature influence. The proposed estimation technique relies on nonlinear autoregressive with exogenous input (NARX) artificial neural networks (ANNs) that are properly trained with multiple datasets. Those datasets include modeled current and voltage data, both for charge-sustaining and charge-depleting working conditions. The investigated method is then experimentally validated using a Raspberry Pi 4B card-sized board, on which the estimation algorithm is actually deployed, and real-time hardware, on which the battery model is developed, namely a Speedgoat baseline platform. These hardware platforms are used in a hardware-in-the-loop architecture via the UPD communication protocol, allowing the system to be validated in a proper testing environment. The resulting estimation algorithm can estimate the battery <i>SOC</i> in real-time, with 2% accuracy during real-time hardware testing.
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spelling doaj.art-d4debc727c9646eeaa79fbff5aa501f12023-11-22T23:07:42ZengMDPI AGElectronics2079-92922021-11-011022282810.3390/electronics10222828Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid VehiclesSara Luciani0Stefano Feraco1Angelo Bonfitto2Andrea Tonoli3Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino, ItalyDepartment of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino, ItalyThis paper presents the design and hardware-in-the-loop (HIL) experimental validation of a data-driven estimation method for the state of charge (<i>SOC</i>) in the lithium-ion batteries used in hybrid electric vehicles (HEVs). The considered system features a 1.25 kWh 48 V lithium-ion battery that is numerically modeled via an RC equivalent circuit model that can also consider the environmental temperature influence. The proposed estimation technique relies on nonlinear autoregressive with exogenous input (NARX) artificial neural networks (ANNs) that are properly trained with multiple datasets. Those datasets include modeled current and voltage data, both for charge-sustaining and charge-depleting working conditions. The investigated method is then experimentally validated using a Raspberry Pi 4B card-sized board, on which the estimation algorithm is actually deployed, and real-time hardware, on which the battery model is developed, namely a Speedgoat baseline platform. These hardware platforms are used in a hardware-in-the-loop architecture via the UPD communication protocol, allowing the system to be validated in a proper testing environment. The resulting estimation algorithm can estimate the battery <i>SOC</i> in real-time, with 2% accuracy during real-time hardware testing.https://www.mdpi.com/2079-9292/10/22/2828battery monitoring systemstate of chargeartificial neural networkshardware-in-the-loopreal-time hardwaremodeling
spellingShingle Sara Luciani
Stefano Feraco
Angelo Bonfitto
Andrea Tonoli
Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
Electronics
battery monitoring system
state of charge
artificial neural networks
hardware-in-the-loop
real-time hardware
modeling
title Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
title_full Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
title_fullStr Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
title_full_unstemmed Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
title_short Hardware-in-the-Loop Assessment of a Data-Driven State of Charge Estimation Method for Lithium-Ion Batteries in Hybrid Vehicles
title_sort hardware in the loop assessment of a data driven state of charge estimation method for lithium ion batteries in hybrid vehicles
topic battery monitoring system
state of charge
artificial neural networks
hardware-in-the-loop
real-time hardware
modeling
url https://www.mdpi.com/2079-9292/10/22/2828
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