Leistungspfad und Zellenfehlerdetektion in Mehrkomponentigen Stromspeichersystemen

Details

Veröffentlichungs-Nr.

EP4822369

Anmeldetag

11. April 2025

Veröffentlichung

14. Oktober 2026

Rechtsraum

EP

Abstract

A computer system (100) comprising processing circuitry (102) configured to: acquire internal resistance values (R_cell) of individual electrical energy storage cells within an electrical energy storage pack (104a-b), acquire an overall internal resistance (R_overall) of the electrical energy storage pack including cell and power path resistances, associate each internal resistance value of individual cells and the overall internal resistance with other electrical energy storage pack characteristics (110), compare the internal resistance values of individual cells and the overall internal resistance with a cell internal resistance reference parameter (112) and an overall internal resistance reference parameter (114) for other electrical energy storage packs with similar electrical energy storage pack characteristics, the other electrical energy storage packs are within a fleet of units equipped with electrical energy storage packs, when either the acquired internal resistance value of a cell fulfil a cell resistance criterion, and/or the acquired overall internal resistance fulfil an overall resistance criterion, provide an output message (M) that a fault is detected in the respective cell (106) and/or electrical energy storage pack (104a-b) power path.

Anmelder

Firma

Volvo Truck Corporation

Land

🇸🇪 Schweden