Leistungs- und Stromschätzung für Batterien

Details

Veröffentlichungs-Nr.

EP3017993

Aktenzeichen

EP14192282

Anmeldetag

7. November 2014

Veröffentlichung

21. April 2021

Erteilung

21. April 2021

Rechtsraum

EP

IPC

B60L58/15G01R31/367H01M10/48G01R31/3835

Abstract

The present invention relates to a method and a system for determining a maximum charge current (i<max>) or a maximum discharge current (i,in) of an energy storage cell (103) of an energy storage device (102). The method comprises providing a predetermined upper voltage limit (V<max>) or lower voltage limit (V<min>), and providing a time horizon (Δt) as a time difference from a present time (t) to a future time (t+Δt). With a repetition time period (ΔT) different from the time horizon, repeating measuring a present voltage level (V) of the energy storage cell; calculating a voltage difference (ΔV) between the present voltage level and the upper voltage limit (V<max>) or the lower voltage limit (V<min>); and determining the maximum charge current (i<max>) or maximum discharge current (i<min>) corresponding to the voltage difference and a model, such that the estimated voltage is within the voltage limits.

Anmelder

Firma

Volvo Car Corporation

Land

🇸🇪 Schweden

Fachgebiete