An apparatus and battery system for estimating insulation resistance including an insulation resistance measurement circuit connected to a first electrode of a battery, a first switch connected to the first resistor, a second resistor connected to the first switch, a third resistor connected to the second resistor and a second electrode of the battery, and a second switch connected between a first contact point between the first switch and the second resistor and a chassis ground, a voltage measurement part measuring a voltage of a second contact point between the second resistor and the third resistor, and a controller controlling the first and second switches and calculating an insulation resistance value based on the voltage measured at the second contact point the first and second switches are ON, and the voltage measured at the second contact point while the first switch is OFF and the second switch is ON.
APPARATUS FOR ESTIMATING INSULATION RESISTANCE AND BATTERY SYSTEM USING THE SAME
VORRICHTUNG ZUR ABSCHÄTZUNG DES ISOLATIONSWIDERSTANDES UND BATTERIESYSTEM DAMIT
APPAREIL POUR ESTIMER UNE RÉSISTANCE D'ISOLATION ET SYSTÈME DE BATTERIE L'UTILISANT
14.08.2024
Patent
Elektronische Ressource
Englisch
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