Patent · US Active

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

US8108160B2 · kind B2 · utility

19Cited by

2References

20Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Wei Liu · Warren, US
Michael J. Gielniak · Atlanta, US
Jian Lin · Beverly Hills, US
Brian J. Koch · Berkley, US
Damon R. Frisch · Troy, US
Joseph M. Lograsso · Troy, US

Key dates

Filing date	Sep 25, 2008
Grant date	Jan 31, 2012
Priority date	—
Expiry date	Oct 19, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.

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