Method for detecting state of battery installed in vehicle, and vehicle-mounted battery-monitoring device
US11999258B2 · kind B2 · utility
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3References
13Claims
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Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Aug 24, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of detecting safe and other states of battery while electric vehicle is being driven controls an inverter to generate ripple current on the battery; ripple voltages of a plurality of battery cells are measured, voltage phase shifts between the battery cells are calculated. The battery can be analyzed as normal or otherwise according to the voltage phase shift between plurality of the battery cells. A vehicle-mounted device and a non-volatile storage medium therein, for performing the above-described method, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.