Bidirektionales Stromversorgungssystem zur Speisung eines Batteriemanagementsystems eines Elektrischen Fahrzeugs

Details

Veröffentlichungs-Nr.

EP4108496

Aktenzeichen

EP21180915

Anmeldetag

22. Juni 2021

Veröffentlichung

13. August 2025

Erteilung

13. August 2025

Rechtsraum

EP

IPC

B60L3/00B60L58/20B60L1/12H02M3/335H02J9/06H01M10/42H02J1/08H02M1/00H02M1/10H02J7/34

Abstract

The present disclosure refers to a bidirectional power supply system for powering a control unit (16) of an electric vehicle, the bidirectional power supply system comprising a low voltage primary power supply adapted to power the control unit (16) as a component of a low voltage board net in a first mode of operation, a high voltage traction battery (14) of the electric vehicle as part of a high voltage board net, and a bidirectional DC-DC converter (12) adapted to, in the first mode of operation, transfer energy from the low voltage board net to the high voltage board net to power components of the high voltage board net via the primary power supply, the DC-DC converter (12) being further adapted to, in a second mode of operation, transfer energy from the high voltage board net to the low voltage board net to power the control unit (16) via the high voltage traction battery (14) in case of loss of the primary power supply, the bidirectional power supply system further comprising a measurement element (18) adapted to detect whether the primary power supply is lost, and a switching element (18) adapted to switch operation of the DC-DC converter (12) from the first mode to the second mode, if loss of the primary power supply is detected.

Anmelder

Firma

Samsung SDI Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete