Patent · US Active

Method for battery module balancing and battery management system

US10084323B2 · kind B2 · utility

2Cited by

2References

4Claims

0Family size

Assignees

Robert Bosch GmbH · DE
SAMSUNG ELECTRONICS CO., LTD. · KR

Inventors

Joachim Fetzer · Bad Boll, DE
Hans-Joerg Wolff · Schorndorf, DE
Hans Partes · Asperg, DE
Stefan Butzmann · Bünde, DE

Key dates

Filing date	Nov 26, 2013
Grant date	Sep 25, 2018
Priority date	—
Expiry date	Apr 7, 2034

Classification

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

Abstract

The disclosure relates to a method for battery module balancing of a battery, which comprises at least one battery module string, wherein the at least one battery module string has a plurality of battery modules connected in series or parallel, wherein each battery module has a single or a plurality of battery cells connected in parallel or in series and a coupling unit which is designed to switch on and off the battery module, said method comprising the steps of: determining a battery module state of at least two battery modules; switching off individual battery modules having a low battery module state, wherein the low state is defined by a defined ratio to an initial state of the battery modules or by a result of a comparison of all detected battery module states.

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