Method and apparatus for predicting change in an operating state of an electric energy storage device
US7639018B2 · kind B2 · utility
18Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for predicting change in an operating state, e.g. state of life, for an electrical energy storage device includes establishing a plurality of values for an operating parameter, e.g. current, of the electrical energy storage device and, for each respective value, determining a corresponding change in the operating state for the energy storage device based upon the respective value. Preferably, change in the state of life is determined based upon an integration of electrical current, a depth of discharge of the energy storage device, and an operating temperature factor of the electrical energy storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.