Insulation resistance determination apparatus

In an insulation resistance detection apparatus, a voltage determiner determines whether a detection voltage, which has changed by at least a preset value, becomes stable at around a changed voltage value. A resistance determiner determines a value of an insulation resistance between a ground portio...

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Hauptverfasser: Wakimoto, Toru, Kouda, Masakazu, Kubokawa, Ryota, Shindo, Yusuke, Sumi, Akira
Format: Patent
Sprache:eng
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Zusammenfassung:In an insulation resistance detection apparatus, a voltage determiner determines whether a detection voltage, which has changed by at least a preset value, becomes stable at around a changed voltage value. A resistance determiner determines a value of an insulation resistance between a ground portion and a power-supply path based on a currently sampled value of the detection voltage instead of a moving average in response to determination that the detection voltage, which has changed by at least the preset value, becomes stable at around the changed voltage value.