Battery condition monitoring method and apparatus
US4052717A · kind A · utility
36Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1975 |
| Grant date | Oct 4, 1977 |
| Priority date | — |
| Expiry date | Oct 14, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/16542
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery condition monitoring device which senses battery terminal voltage and creates a function thereof and tests that function against predetermined criteria and determines battery condition as a result of such tests. Furthermore, the invention operates on the transient of the battery terminal voltage existant immediately upon the loading of the battery. The test is performed on the slope of the terminal voltage transient and a function of that transient during a test period is created, analyzed and evaluated against reference levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.