China Safety Science Journal ›› 2023, Vol. 33 ›› Issue (9): 94-102.doi: 10.16265/j.cnki.issn1003-3033.2023.09.1250
• Safety engineering technology • Previous Articles Next Articles
LIU Dan1,2(), WANG Ruihu1,2, LYU Wei1,2,**(), QIN Ling3, LIN Shuichun2,4
Received:
2023-03-10
Revised:
2023-06-21
Online:
2023-09-28
Published:
2024-03-28
Contact:
LYU Wei
LIU Dan, WANG Ruihu, LYU Wei, QIN Ling, LIN Shuichun. SOH monitoring of new energy vehicle lithium batteries based on IPSO-LSTM[J]. China Safety Science Journal, 2023, 33(9): 94-102.
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Tab.1
Results of correlation analysis of health characteristics
健康特征 | Spearman系数 | |||
---|---|---|---|---|
B5 | B6 | B7 | B18 | |
0.954 | 0.957 | 0.952 | 0.917 | |
-0.885 | -0.914 | -0.852 | -0.812 | |
0.953 | 0.957 | 0.952 | 0.917 | |
-0.963 | -0.951 | -0.890 | -0.863 | |
0.954 | 0.956 | 0.950 | 0.920 | |
-0.876 | -0.911 | -0.852 | -0.746 | |
0.949 | 0.955 | 0.945 | 0.851 | |
-0.867 | -0.889 | -0.830 | -0.743 | |
0.037 | 0.127 | 0.018 | -0.191 | |
-0.337 | 0.089 | -0.056 | -0.108 |
Tab.5
Prediction errors of four models
型号 | BP | LSTM | PSO-LSTM | IPSO-LSTM | ||||
---|---|---|---|---|---|---|---|---|
MAE | RMSE | MAE | RMSE | MAE | RMSE | MAE | RMSE | |
B5 | 0.059 3 | 0.070 7 | 0.032 9 | 0.036 0 | 0.019 7 | 0.024 5 | 0.010 0 | 0.015 0 |
B6 | 0.073 9 | 0.086 4 | 0.039 1 | 0.042 4 | 0.028 3 | 0.035 4 | 0.018 3 | 0.027 2 |
B7 | 0.047 3 | 0.057 9 | 0.021 7 | 0.025 7 | 0.011 5 | 0.018 5 | 0.009 9 | 0.016 4 |
B18 | 0.074 8 | 0.085 8 | 0.040 4 | 0.044 8 | 0.024 8 | 0.031 1 | 0.013 9 | 0.025 4 |
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