Battery state-of-charge indicator
US4320334A · kind A · utility
18Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Oct 1, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for providing a continuous indication of battery state-of-charge under load in a system in which the battery is subject to varying load conditions. The apparatus stores a value representative of battery open circuit terminal voltage and reduces the stored value while the battery is loaded at a rate proportional to the difference between the stored value and a scaled value of actual battery terminal voltage. If the scaled value exceeds the stored value, the stored value is increased to a value corresponding to the scaled value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.