Patent · US Active

Device for monitoring battery cells of a battery string in load operation

US11693061B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Christian Wick · Meitingen, DE
Sascha Beaury · Gifhorn, DE
Stephan Gloger · Berlin, DE
Martin Heuser · Bochum, DE
Jens Bandener · Bochum, DE
Philipp Scheer · Haan, DE

Key dates

Filing date	Nov 5, 2021
Grant date	Jul 4, 2023
Priority date	—
Expiry date	Nov 5, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A device for monitoring battery cells of a battery string under load condition. The device has differential voltage units for each battery cell, wherein a band-pass filter is arranged downstream of each differential voltage unit, wherein the band-pass filters are connected to rectifier circuits with a smoothing circuit arranged downstream, and wherein the device is designed so the output signals of the smoothing circuits are supplied to an evaluation unit and are compared for deviations in relation to a standardized output signal.

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