Patent · US Expired

Method and device for determining the charge status of a battery

US6531874B2 · kind B2 · utility

16Cited by

2References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dirk Mentgen · Schwieberdingen, DE
Eberhard Schoch · Stuttgart, DE

Key dates

Filing date	Nov 19, 2001
Grant date	Mar 11, 2003
Priority date	—
Expiry date	Nov 19, 2021

Classification

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

Abstract

A method of determining the charge status of a battery, in particular an automotive battery, comprising the following steps:determining a first battery charge status socU0 on the basis of a measurement of the no-load voltage of the battery,determining a second battery charge status soci on the basis of integration of a battery current over time, andforming a weighted average from battery charge states socU0 and soci thus determined, to obtain an average battery charge status soc.

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