Method and apparatus for estimating maximum power of battery by using internal resistance of the battery
US9696382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 27, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for estimating the maximum power of a battery, which can inexpensively perform an estimation of the maximum power of a battery in a relatively simple manner of using the internal resistance of the battery, which has a correlation with and a largest effect on the maximum power of the battery. The method includes the steps of: measuring an internal resistance and a temperature of the battery and estimating a state of charge, if an estimation of the maximum power of the battery is requested; and reading a value of the maximum power of the battery, which corresponds to the measured temperature, the estimated state of charge, and the measured internal resistance, from a table in which the internal resistances and the maximum powers of the battery are mapped according to the temperatures and states of charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.