State of charge determination
US9423465B1 · kind B1 · utility
6Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of determining the state of charge of a battery during charging may include providing a charging current having a first magnitude to the battery for charging, and changing a magnitude of the charging current from the first magnitude to a second magnitude. The second magnitude may be equal to the magnitude of current discharged from the battery during the charging. The method may also include determining a voltage across the battery after the changing, and determining a state of charge of the battery as a function of the determined voltage from a battery characterization curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.