Battery management system, battery management method, battery pack and electric vehicle
US11964586B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2020 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Dec 2, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery management system including a first connection unit, a first slave controller and a master controller. The first connection unit electrically connects a first battery cell included in a first battery group to the first slave controller. Power from the first battery group is supplied to the first slave controller through a first power line included in the first connection unit. The first slave controller determines a first reference voltage value indicating a voltage of the first battery cell during the execution of the first communication mode, and determines a first comparative voltage value indicating a voltage of the first battery cell during the execution of the second communication model. The master controller determines whether the first power line has an open circuit fault based on the first reference voltage value and the first comparative voltage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.