Bestimmung eines Relaxationszustands einer Batterie

Details

Veröffentlichungs-Nr.

EP4822366

Anmeldetag

11. April 2025

Veröffentlichung

14. Oktober 2026

Rechtsraum

EP

IPC

G01R31/382, G01R31/392

Abstract

A computer system and computer-implemented method are disclosed for determining a relaxation state of a battery cell online. The computer-implemented method comprises: acquiring, by processing circuitry of a computer system, a first terminal voltage of the battery cell measured at a first time; acquiring, by the processing circuitry, a second terminal voltage of the battery cell measured at a second time a period later than the first time; determining, by the processing circuitry, a relaxation metric based on a difference between the first terminal voltage and the second terminal voltage over the period; and determining, by the processing circuitry, a relaxation state of the battery cell online by comparing the determined relaxation metric to a threshold.

Anmelder

Firma

Volvo Truck Corporation

Land

🇸🇪 Schweden

Fachgebiete