Method and system for monitoring battery short circuit and apparatus
US12326477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2020 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Dec 25, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method includes: receiving collected electrical signal information of all cells in each traction battery; performing self-discharge observation and calculating a self-discharge rate based on a cell voltage in electrical signal information of each cell after depolarization is completed, to determine whether there is an internal short circuit in a traction battery where the cell corresponding to the self-discharge rate is located; and triggering alarm handling for the internal short circuit in the traction battery based on a back-fed result that there is an internal short circuit in the traction battery. In this way, a problem of how to monitor a micro-internal short circuit in a traction battery in a good static working condition with accuracy and efficiency while taking operation into consideration is solved, thereby improving accuracy and efficiency of monitoring an internal short circuit in the traction battery while taking operation into account.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.