Method and apparatus for monitoring battery discharge state
US7386404B2 · kind B2 · utility
53Cited by
7References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/16552
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One aspect of the invention involves: periodically sampling a voltage of a battery and an ambient temperature in order to obtain a sample that includes a temperature value and a voltage value; saving each sample in a sample group; selecting a subset of the samples in the group, wherein the temperature value of each sample in the subset is lower than the temperature value of substantially all of the samples of the group other than the subset; and determining as a function of the voltage of at least one the sample in the subset whether the battery is subject to a low voltage condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.