Battery state diagnosing device and battery state diagnosing method
US7216044B2 · kind B2 · utility
8Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2003 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Jan 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/386
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A battery state diagnosing device applies load to a battery from a load applying section, measures input and output characteristics of the battery, and diagnoses a state of the battery by plugging a result of measurement into a mathematical expression obtained by a system identification method. In the battery state diagnosing device, a current load is used as the load applying section. With this arrangement, the battery state diagnosing device is capable of suitably determining, for example, life and state-of-charge of the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.