Patent · US Expired

Method and apparatus for determining the charge balance of a storage battery for an operating system having a plurality of electrical consumers

US6291971A · kind A · utility

1Cited by

1References

23Claims

0Family size

Assignee

Daimlerchrysler AG · US

Inventors

Wolf Boll · Waiblingen, DE
Bernd Falkenmayer · Schwieberdingen, DE
Matthias Schorpp · Eßlingen, DE

Key dates

Filing date	Oct 27, 1999
Grant date	Sep 18, 2001
Priority date	—
Expiry date	Oct 27, 2019

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/3832
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method for detecting the charge balance of a storage battery for an electric drive vehicle by measuring and summing the charge and discharge currents over time, a plurality of current measuring arrangements are provided. Individual electrical power consumers are each assigned to one of these current measuring arrangements, and the currents detected by the current measuring arrangements are added over time. The consumers are assigned mainly on the basis of their power draws. It is also possible to replace one or more current measuring arrangements by a pulse generator. The power draw of the corresponding consumer is then multiplied by its operating time, determined with a given factor. The current draw of the electric drive is measured in any case.

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