Patent ID: 11959973
Assignee: SHANDONG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The multi-fault diagnosis method for battery packs based on corrected sample entropy according to claim 1, wherein before the step of constructing the cell voltage sequence according to the measured cell voltages of the battery pack to be diagnosed, and calculating the sample entropy value of the cell voltage sequence, a pre-judgment step is further comprised:
setting a threshold range of cell voltages;
judging whether a cell voltage is larger than a maximum threshold value of the threshold range or not, if yes, judging that an over-voltage fault occurs, and if not, executing the next step; and
judging whether a cell voltage is smaller than a minimum threshold value of the threshold value range or not, if yes, judging that an under-voltage fault occurs, and if not, executing the next step.