Patent · US Active

Method and system for state-of-charge monitoring of an AC battery

US11689039B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

Dr. Ing. h.c. F. Porsche AG · DE

Inventors

Eduard Specht · Dormagen, DE
Jan Kacetl · Gemmrigheim, DE
Tomas Kacetl · Gemmrigheim, DE
Malte Jaensch · Bietigheim-Bissingen, DE
Daniel L. Simon · Glendale, US
Stefan Götz · Forstern, DE

Key dates

Filing date	Nov 4, 2021
Grant date	Jun 27, 2023
Priority date	—
Expiry date	Nov 17, 2041

Classification

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

Abstract

A method for state-of-charge monitoring of an AC battery, in which the battery includes a central controller having a scheduler, measuring sensors and at least two battery modules. The at least two battery modules each have at least one energy storage element and at least two power semiconductor switches, which connect the respective battery module in series or in parallel or in bypass with another battery module. The battery is controlled by the central controller, and a respective switching state of the at least two battery modules is preset by the scheduler. The state-of-charge monitoring is implemented by a control program within the scheduler. During operation of the battery, a state of each individual energy storage element is monitored by virtue of a respective current flow at a respective energy storage element being determined using continued evaluation of measured values of preset battery parameters which are detected by measuring sensors.

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