Automatic determination of multi-frequency baselines for battery testing
US9207285B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2014 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | May 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/389
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Baseline values for battery testing are automatically determined for individual batteries, battery cells, or networks of batteries. Impedance information is obtained from individual batteries and adjusted for operating conditions at a site of use (e.g., temperature, age, connection topology and user-entered information). Population-referenced baselines are automatically calculated from the group of individual-referenced baselines. All baselines can be continually updated and improved. The state of charge and state of health characteristics of batteries in the network can be automatically determined by comparison of measured impedance, and other values, to the baselines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.