Patent · US Active

Method and device for measuring the electric current of a battery with multiple battery modules

US10079408B2 · kind B2 · utility

2Cited by

2References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Chrysanthos Tzivanopoulos · Großbettlingen, DE
Joerg Schneider · Gerolzhofen, DE
Lisa Lorenz · Stuttgart, DE
Sven Bergmann · Stuttgart, DE

Key dates

Filing date	Jun 10, 2015
Grant date	Sep 18, 2018
Priority date	—
Expiry date	Jun 25, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for measuring an electric current of a battery (10) with multiple battery modules (11), having the step of measuring a temperature related to the battery module (11). According to the method, the temperature of a connector is first determined for at least one battery module (11) using the measured temperature and a temperature model, and the electric resistance of the connector is determined using a resistance model and the temperature of the connector. The electric voltage which drops at the connector is then measured, and the electric current flowing through the connector is calculated from the voltage. The invention additionally relates to a corresponding device and to a battery comprising such a device.

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