Batteriesystem und Verfahren dafür sowie Elektrofahrzeug

Details

Veröffentlichungs-Nr.

EP4789894

Anmeldetag

11. Februar 2025

Veröffentlichung

12. August 2026

Rechtsraum

EP

Abstract

The present disclosure refers to a battery system (100), an electric vehicle (2000) including the battery system (100) and a method for the battery system (100). The battery system (100) includes a battery pack (10) with a plurality of battery cells (12) connected to two high voltage lines (14) to form a high voltage, HV, system (16). Each of the high voltage lines (14) includes a main high voltage switch (18) configured to connect the plurality of battery cells (12) to or disconnect the plurality of battery cells (12) from the respective high voltage line (14). The battery system (100) further includes a battery heating system (20) for heating the plurality of battery cells (12) of the battery pack (10) with a heating element (22) and a heating switch (24) connected in series with the heating element (22). The heating element (22) and the heating switch (24) are connected in parallel to one of the high voltage lines (14). The battery system (100) further includes a low voltage, LV, system (26) and a battery management system, BMS, (28) connected to the LV system (26). The BMS (28) includes a signal transmission means (30) configured to transmit a switching signal to the heating switch (24) in a galvanically isolated manner for controlling the heating switch (24) of the battery heating system (20). The battery heating system (20) is configured to receive the switching signal from the signal transmission means (30) of the BMS (28).

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea