Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms
Unsupervised learning algorithms can effectively solve sample imbalance. To address battery consistency anomalies in new energy vehicles, we adopt a variety of unsupervised learning algorithms to evaluate and predict the battery consistency of three vehicles using charging fragment data from actual...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2024-03-01
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| Series: | Big Data Mining and Analytics |
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| Online Access: | https://www.sciopen.com/article/10.26599/BDMA.2023.9010003 |
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| author | Jiang Chang Xianglong Gu Jieyun Wu Debu Zhang |
| author_facet | Jiang Chang Xianglong Gu Jieyun Wu Debu Zhang |
| author_sort | Jiang Chang |
| collection | DOAJ |
| description | Unsupervised learning algorithms can effectively solve sample imbalance. To address battery consistency anomalies in new energy vehicles, we adopt a variety of unsupervised learning algorithms to evaluate and predict the battery consistency of three vehicles using charging fragment data from actual operating conditions. We extract battery-related features, such as the mean of maximum difference, standard deviation, and entropy of batteries and then apply principal component analysis to reduce the dimensionality and record the amount of preserved information. We then build models through a collection of unsupervised learning algorithms for the anomaly detection of cell consistency faults. We also determine whether unsupervised and supervised learning algorithms can address the battery consistency problem and document the parameter tuning process. In addition, we compare the prediction effectiveness of charging and discharging features modeled individually and in combination, determine the choice of charging and discharging features to be modeled in combination, and visualize the multidimensional data for fault detection. Experimental results show that the unsupervised learning algorithm is effective in visualizing and predicting vehicle core conformance faults, and can accurately predict faults in real time. The “distance+boxplot” algorithm shows the best performance with a prediction accuracy of 80%, a recall rate of 100%, and an F1 of 0.89. The proposed approach can be applied to monitor battery consistency faults in real time and reduce the possibility of disasters arising from consistency faults. |
| format | Article |
| id | doaj-art-358f47349df64b2b9a11280be990cba9 |
| institution | Kabale University |
| issn | 2096-0654 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Big Data Mining and Analytics |
| spelling | doaj-art-358f47349df64b2b9a11280be990cba92025-02-03T00:17:02ZengTsinghua University PressBig Data Mining and Analytics2096-06542024-03-0171425410.26599/BDMA.2023.9010003Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning AlgorithmsJiang Chang0Xianglong Gu1Jieyun Wu2Debu Zhang3Stellantis China Technology Center, Shanghai 200233, ChinaStellantis China Technology Center, Shanghai 200233, ChinaStellantis China Technology Center, Shanghai 200233, ChinaStellantis China Technology Center, Shanghai 200233, ChinaUnsupervised learning algorithms can effectively solve sample imbalance. To address battery consistency anomalies in new energy vehicles, we adopt a variety of unsupervised learning algorithms to evaluate and predict the battery consistency of three vehicles using charging fragment data from actual operating conditions. We extract battery-related features, such as the mean of maximum difference, standard deviation, and entropy of batteries and then apply principal component analysis to reduce the dimensionality and record the amount of preserved information. We then build models through a collection of unsupervised learning algorithms for the anomaly detection of cell consistency faults. We also determine whether unsupervised and supervised learning algorithms can address the battery consistency problem and document the parameter tuning process. In addition, we compare the prediction effectiveness of charging and discharging features modeled individually and in combination, determine the choice of charging and discharging features to be modeled in combination, and visualize the multidimensional data for fault detection. Experimental results show that the unsupervised learning algorithm is effective in visualizing and predicting vehicle core conformance faults, and can accurately predict faults in real time. The “distance+boxplot” algorithm shows the best performance with a prediction accuracy of 80%, a recall rate of 100%, and an F1 of 0.89. The proposed approach can be applied to monitor battery consistency faults in real time and reduce the possibility of disasters arising from consistency faults.https://www.sciopen.com/article/10.26599/BDMA.2023.9010003battery consistencycharging segment dataunsupervised learning |
| spellingShingle | Jiang Chang Xianglong Gu Jieyun Wu Debu Zhang Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms Big Data Mining and Analytics battery consistency charging segment data unsupervised learning |
| title | Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms |
| title_full | Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms |
| title_fullStr | Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms |
| title_full_unstemmed | Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms |
| title_short | Cell Consistency Evaluation Method Based on Multiple Unsupervised Learning Algorithms |
| title_sort | cell consistency evaluation method based on multiple unsupervised learning algorithms |
| topic | battery consistency charging segment data unsupervised learning |
| url | https://www.sciopen.com/article/10.26599/BDMA.2023.9010003 |
| work_keys_str_mv | AT jiangchang cellconsistencyevaluationmethodbasedonmultipleunsupervisedlearningalgorithms AT xianglonggu cellconsistencyevaluationmethodbasedonmultipleunsupervisedlearningalgorithms AT jieyunwu cellconsistencyevaluationmethodbasedonmultipleunsupervisedlearningalgorithms AT debuzhang cellconsistencyevaluationmethodbasedonmultipleunsupervisedlearningalgorithms |