Battery electric flow test system and method
US12326475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2021 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Jul 20, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/84
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system of testing electricity flow of a battery manages registration, modification, deletion, and display of a set value, a measured value, and a diagnostic value for each test item for the battery and matches the set value for each test item registered by the test item manager with a type of the battery and stores the set value. The system also identifies a phase difference between an input frequency input to the battery and an output frequency corresponding to the input frequency to determine a high-frequency resonant frequency and then calculates an AC impedance corresponding to the determined high-frequency resonant frequency and compares the calculated AC impedance with an electricity flow upper limit to diagnose that the electricity flow is normal when the calculated AC impedance is lower than the electricity flow upper limit and diagnose that the electricity flow is abnormal when the calculated AC impedance is higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.