Patent · US Active

Method for operating a battery module

US11929631B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Christoph Woll · Gerlingen, DE
Alexander Schmidt · Ingolstadt, DE
Tunan Shen · Leonberg, DE

Key dates

Filing date	Jun 7, 2019
Grant date	Mar 12, 2024
Priority date	—
Expiry date	Nov 15, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/70
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for operating a battery module, including multiple battery cells. The method includes: a) ascertaining cell voltages of the individual battery cells at a starting point in time; b) ascertaining at the starting point in time an average cell voltage from the cell voltages of the battery cells ascertained at the starting point in time; c) estimating the cell voltage of at least one battery cell at an operating point in time if the cell voltage of the battery cell is not measurable at the operating point in time, taking into account the cell voltage of the battery cell ascertained at the starting point in time, the average cell voltage ascertained at the starting point in time, and an average cell voltage ascertained at the operating point in time.

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