Multi-cell battery management device
US11063445B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Dec 29, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Multi-cell battery management devices, systems, and method of operation are disclosed herein. A multi-cell battery pack includes a power output terminal and a plurality of battery cells each having a positive terminal and a negative terminal connected in series. Each cell of the plurality of battery cells includes: i) a cell control processor to monitor cell voltage, cell current, cell temperature, and cell fuse status; ii) a programmable cell balance shunt controlled by the cell control processor that varies the internal resistance of each cell of the plurality of battery cells; and iii) a data communications circuit connected to the cell control processor and to the positive terminal and the negative terminal of each cell, the communications circuit enabling data communications over the positive terminal and the negative terminal of each cell, and wherein the cell control processor responds to commands received via the data communications circuit to vary an operating state of the programmable cell balance shunt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.