Quiescent voltage sampling battery state of charge meter
US4460870A · kind A · utility
57Cited by
7References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1981 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Jul 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
State of charge is determined for a battery during a quiescent interval with substantially no current flow through the battery by determining the quiescent time interval since the last substantial current flow through the battery, taking a rapid measurement of the battery terminal voltage, and relating the combination of these two measurements to known battery open circuit voltage recovery characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.