Use-adaptive fuel gauging for battery powered electronic devices
US7107160B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jun 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3646
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a battery powered electronic device incorporate use-adaptive fuel gauging. The use-adaptive fuel gauging adapts a fuel gauge algorithm to an average use model for the device. The adaptation accounts for the effects that variations in average use by a user of the device have on a total available energy or charge capacity of a battery. Accordingly, use-adaptivity can improve the fuel gauging accuracy by improving an estimate of the total energy available. The method and device optionally account for different battery chemistries yielding further increases in fuel gauging accuracy compared to conventional fuel gauging approaches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.