Method and apparatus for determining a capacity of a battery
US9081068B2 · kind B2 · utility
14Cited by
5References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Some embodiments of the present invention provide a system that accurately and reliably updates a full charge capacity of a battery. During operation, the system charges the battery from an initial state to a rest point prior to reaching a fully charged state. The system then interrupts the charging process to allow the battery to relax to a resting voltage. Next, the system measures the resting voltage. The system then resumes the charging process toward the fully charged state. The system subsequently estimates the capacity of the battery based on the measured resting voltage and one or more other parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.