Stromversorgungsvorrichtung für ein Fahrzeug und Verfahren zur Steuerung der Stromversorgungsvorrichtung für ein Fahrzeug

Details

Veröffentlichungs-Nr.

EP4775457

Anmeldetag

5. September 2023

Veröffentlichung

13. März 2025

Rechtsraum

EP

IPC

B60R16/033, B62D5/04

Abstract

A control circuit of a vehicle power supply device (1) is configured to execute, when a start switch of a vehicle is switched to an ON state, an initial check process including one or more abnormality determinations for detecting an abnormality of the vehicle power supply device (1), and execute, when the start switch is switched to an OFF state, a discharging process in which an auxiliary power supply (41) is discharged through a boost circuit (42) until the voltage of the auxiliary power supply reaches a predetermined voltage. The control circuit is further configured to perform, before execution of the one or more abnormality determinations, a restart determination for determining whether at least one of a voltage on the input side of the boost circuit (42) in the discharge line (Lsu) and a voltage on the output side of the boost circuit in the discharge line is greater than or equal to a voltage threshold, and, when at least one of the voltages is greater than or equal to the voltage threshold, not determine that an abnormality has occurred in the vehicle power supply device (1) by a predetermined abnormality determination.

Anmelder

Firma

JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete