Patent · US Expired

Method and device for determining the state of a vehicle battery

US7193421B2 · kind B2 · utility

0Cited by

4References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Wunibald Frey · Schwieberdingen, DE
Helmut Meyer · Halstenbek, DE
Marc Knapp · Erdmannhausen, DE

Key dates

Filing date	Jan 20, 2004
Grant date	Mar 20, 2007
Priority date	—
Expiry date	Nov 30, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/382
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and a device for determining the state of a vehicle battery in which the battery voltage is measured and information regarding the state of the vehicle battery is derived from the measured battery voltage by means of an integration procedure. A variable weighting factor is taken into account in the integration procedure.

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