Patent · US Active

Method and apparatus for determining a state of charge for a battery

US11796598B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Ramaprakash Bayadi · Kanchinakote, IN
Karthick Gourichankar · Survanagiri, IN
Sanketh Bhat · Bengaluru, IN

Key dates

Filing date	Jul 5, 2019
Grant date	Oct 24, 2023
Priority date	—
Expiry date	Dec 30, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/3828
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Briefly, embodiments of a system, method, and article for estimating a true state of charge (SOC) measurement for a battery based, at least in part, on a measurement of a rate of change of current supplied to the battery at a particular constant voltage value based, in part, on a current charging profile for the battery indicating a mapping between measurements of rates of change of current supplied to the battery at the particular constant voltage value and SOC measurements for the battery. A true SOC measurement for the battery may be determined based, at least in part, on the mapping. The first SOC measurement may be corrected to match the true SOC measurement at a particular point in time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.