Isolationsdetektionsschaltung und -Verfahren, Batterieverwaltungssystem und Fahrzeug

Details

Veröffentlichungs-Nr.

EP4760276

Anmeldetag

19. Juni 2024

Veröffentlichung

13. Februar 2025

Rechtsraum

EP

IPC

G01R27/02, B60L3/00, B60L58/10

Abstract

An insulation detection circuit and method, a battery management system, and a vehicle are provided. The circuit includes: a power supply unit, suitable for providing a first power supply and a second power supply, a supply voltage of the first power supply being different from a supply voltage of the second power supply; a switching unit, suitable for switching the power supply unit to be connected to a positive terminal of a load or a negative terminal of the load; and a voltage detection unit, configured to detect a voltage between the first power supply and a ground terminal, and detect a voltage between the second power supply and the ground terminal. The voltages detected by the voltage detection unit are used to determine insulation resistance. In this way, regardless of whether the power supply unit is connected to the positive terminal or the negative terminal of the load, detection of the insulation resistance at the ground terminal can be implemented.

Anmelder

Firma

BYD Company Limited

Land

🇨🇳 China