Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data
Vehicle safety risk can be decreased by diagnosing the lithium-ion battery system of electric road vehicles. Real-time cell diagnostics can avoid unexpected occurrences. However, lithium-ion batteries in electric vehicles can significantly differ in design, capacity, and chemical composition. In add...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Algorithms |
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| Online Access: | https://www.mdpi.com/1999-4893/15/12/467 |
| _version_ | 1797461873095868416 |
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| author | Szabolcs Kocsis Szürke Gergő Sütheö Antal Apagyi István Lakatos Szabolcs Fischer |
| author_facet | Szabolcs Kocsis Szürke Gergő Sütheö Antal Apagyi István Lakatos Szabolcs Fischer |
| author_sort | Szabolcs Kocsis Szürke |
| collection | DOAJ |
| description | Vehicle safety risk can be decreased by diagnosing the lithium-ion battery system of electric road vehicles. Real-time cell diagnostics can avoid unexpected occurrences. However, lithium-ion batteries in electric vehicles can significantly differ in design, capacity, and chemical composition. In addition, the battery monitoring systems of the various vehicles are also diverse, so communication across the board is not available or can only be achieved with significant difficulty. Hence, unique type-dependent data queries and filtering are necessary in most cases. In this paper, a Volkswagen e-Golf electric vehicle is investigated; communication with the vehicle was implemented via an onboard diagnostic port (so-called OBD), and the data stream was recorded. The goal of the research is principally to filter out, identify, and localize defective/weak battery cells. Numerous test cycles (constant and dynamic measurements) were carried out to identify cell abnormalities (so-called deviations). A query and data filtering process was designed to detect defective battery cells. The fault detection procedure is based on several cell voltage interruptions at various loading levels. The methodology demonstrated in this article uses a fault diagnosis technique based on voltage abnormalities. In addition, it employs a hybrid algorithm that executes calculations on measurement and recorded data. In the evaluation, a status line comprising three different categories was obtained by parametrizing and prioritizing (weighting) the individual measured values. It allows the cells to be divided into the categories green (adequate region), yellow (to be monitored), and red (possible error). In addition, several querying strategies were developed accordingly to clarify and validate the measurement results. The several strategies were examined individually and analyzed for their strengths and weaknesses. Based on the results, a data collection, processing, and evaluation strategy for an electric vehicle battery system have been developed. The advantage of the developed algorithm is that the method can be adapted to any electric or hybrid vehicle battery. |
| first_indexed | 2024-03-09T17:25:34Z |
| format | Article |
| id | doaj.art-fc9d19be372b45f99d89ff38f8051065 |
| institution | Directory Open Access Journal |
| issn | 1999-4893 |
| language | English |
| last_indexed | 2024-03-09T17:25:34Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Algorithms |
| spelling | doaj.art-fc9d19be372b45f99d89ff38f80510652023-11-24T12:49:23ZengMDPI AGAlgorithms1999-48932022-12-01151246710.3390/a15120467Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement DataSzabolcs Kocsis Szürke0Gergő Sütheö1Antal Apagyi2István Lakatos3Szabolcs Fischer4Central Campus Győr, Széchenyi István University, H-9026 Győr, HungaryCentral Campus Győr, Széchenyi István University, H-9026 Győr, HungaryCentral Campus Győr, Széchenyi István University, H-9026 Győr, HungaryCentral Campus Győr, Széchenyi István University, H-9026 Győr, HungaryCentral Campus Győr, Széchenyi István University, H-9026 Győr, HungaryVehicle safety risk can be decreased by diagnosing the lithium-ion battery system of electric road vehicles. Real-time cell diagnostics can avoid unexpected occurrences. However, lithium-ion batteries in electric vehicles can significantly differ in design, capacity, and chemical composition. In addition, the battery monitoring systems of the various vehicles are also diverse, so communication across the board is not available or can only be achieved with significant difficulty. Hence, unique type-dependent data queries and filtering are necessary in most cases. In this paper, a Volkswagen e-Golf electric vehicle is investigated; communication with the vehicle was implemented via an onboard diagnostic port (so-called OBD), and the data stream was recorded. The goal of the research is principally to filter out, identify, and localize defective/weak battery cells. Numerous test cycles (constant and dynamic measurements) were carried out to identify cell abnormalities (so-called deviations). A query and data filtering process was designed to detect defective battery cells. The fault detection procedure is based on several cell voltage interruptions at various loading levels. The methodology demonstrated in this article uses a fault diagnosis technique based on voltage abnormalities. In addition, it employs a hybrid algorithm that executes calculations on measurement and recorded data. In the evaluation, a status line comprising three different categories was obtained by parametrizing and prioritizing (weighting) the individual measured values. It allows the cells to be divided into the categories green (adequate region), yellow (to be monitored), and red (possible error). In addition, several querying strategies were developed accordingly to clarify and validate the measurement results. The several strategies were examined individually and analyzed for their strengths and weaknesses. Based on the results, a data collection, processing, and evaluation strategy for an electric vehicle battery system have been developed. The advantage of the developed algorithm is that the method can be adapted to any electric or hybrid vehicle battery.https://www.mdpi.com/1999-4893/15/12/467lithium-ion battery systembattery system monitoringOBD data processingcell fault diagnosticscell voltage inconsistencydynamic measurements |
| spellingShingle | Szabolcs Kocsis Szürke Gergő Sütheö Antal Apagyi István Lakatos Szabolcs Fischer Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data Algorithms lithium-ion battery system battery system monitoring OBD data processing cell fault diagnostics cell voltage inconsistency dynamic measurements |
| title | Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data |
| title_full | Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data |
| title_fullStr | Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data |
| title_full_unstemmed | Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data |
| title_short | Cell Fault Identification and Localization Procedure for Lithium-Ion Battery System of Electric Vehicles Based on Real Measurement Data |
| title_sort | cell fault identification and localization procedure for lithium ion battery system of electric vehicles based on real measurement data |
| topic | lithium-ion battery system battery system monitoring OBD data processing cell fault diagnostics cell voltage inconsistency dynamic measurements |
| url | https://www.mdpi.com/1999-4893/15/12/467 |
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