Method and system for determining state-of-health of a nickel-metal hydride battery using an intelligent system
US7051008B2 · kind B2 · utility
17Cited by
39References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2002 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S706/902
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for determining the state-of-health of a nickel-metal hydride battery connected to a load comprises: detecting at least one of a real and imaginary part of an impedance of the battery at each of a first set of selected frequencies, the first set of selected frequencies including at least one frequency, and determining the state-of-health of the battery from a fuzzy system trained in a relationship between each impedance and the state-of-health, wherein the state-of-health is a function of the battery's ability to deliver power required by the load and the battery's capacity to meet load requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.