Embodiments of this application relate to the monitoring field, and disclose a method for monitoring an insulation monitoring circuit and a battery management system. In some embodiments of this application, the method for monitoring an insulation monitoring circuit includes: in a state in which a first switch and a second switch are closed and a third switch is open, obtaining a first electrical signal detected by a second monitoring module; and based on the first electrical signal and a voltage reference value between a positive electrode of a battery pack and a negative electrode of the battery pack, determining whether an insulation monitoring circuit is faulty; or obtaining a second electrical signal detected by a first monitoring module and a third electrical signal detected by a third monitoring module, and based on the second electrical signal and the third electrical signal, determining whether the insulation monitoring circuit is faulty. In this way, a fault of the insulation monitoring circuit can be detected in a timely manner.
DETECTION METHOD FOR INSULATION TESTING CIRCUIT, AND BATTERY MANAGEMENT SYSTEM
DETEKTIONSVERFAHREN FÜR ISOLATIONSPRÜFSCHALTUNG UND BATTERIEVERWALTUNGSSYSTEM
PROCÉDÉ DE DÉTECTION POUR CIRCUIT DE TEST D'ISOLATION, ET SYSTÈME DE GESTION DE BATTERIE
2023-02-15
Patent
Electronic Resource
English
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