Battery degradation monitoring system
US10274546B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2014 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Sep 25, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/382
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a battery degradation monitoring system provided with a battery monitoring unit including a temperature sensor for detecting the ambient temperature of a battery mounted on a vehicle and a clock function unit to compute the state of charge and the degradation rate of the battery as a whole by inputting the voltages and temperatures of a plurality of battery modules of the battery from cell monitoring units when an ignition switch of the vehicle is on, the battery monitoring unit is further actuated by the clock function unit each time a predetermined period of time elapses when the ignition switch of the vehicle is off to integrate a degradation function formula with respect to the ambient temperature detected by the temperature sensor and compute the degradation rate of the battery when the ignition switch is off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.