HIGH VOLTAGE SYSTEM AND METHOD FOR MONITORING INSULATING DEFECTS IN A HIGH VOLTAGE SYSTEM

A high-voltage system including a high-voltage battery and a DC/DC converter, the high-voltage system having two different galvanically connected voltage levels with enabled DC/DC converters. A first measuring device detects the voltage of the high-voltage battery and a second measuring device detec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Lehnhardt, Marcus, Sommerfeld, Marcus, Albrecht, Fabian, Günther, Kay-Michael
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A high-voltage system including a high-voltage battery and a DC/DC converter, the high-voltage system having two different galvanically connected voltage levels with enabled DC/DC converters. A first measuring device detects the voltage of the high-voltage battery and a second measuring device detects the voltage at the output of the DC/DC converter. An insulation resistance measuring device may be configured to carry out insulation resistance measurements only when the DC/DC converter is disabled. A third measuring device may detect a voltage between a positive high voltage line and the ground and a fourth measuring device and a voltage between a negative high-voltage line and the ground. An insulation monitoring device may monitor the insulation resistances from data of the first to fourth measuring device at least when the DC/DC converter is enabled.