A control system for controlling a vehicle charger including a power factor correction (PFC) circuit includes a resistance measuring circuit configured to make first resistance measurements at a positive DC terminal of the PFC circuit and second resistance measurements at a negative DC terminal of the PFC circuit. The control system includes a controller configured to, in response to the PFC circuit being in a selected switching state, compare one of the first resistance measurements to a positive threshold. The one of the first resistance measurements is made while the PFC circuit is in the selected switching state. The positive threshold is based on a first parallel combination of one or more resistances corresponding to the selected switching state of the PFC circuit. If the one of the first resistance measurements is less than the positive threshold, the controller disables operation of the vehicle charger.


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    Title :

    RESIDUAL CURRENT DETECTION FOR VEHICLE ONBOARD CHARGER USING ISOLATION RESISTANCE MONITORING CIRCUITRY


    Additional title:

    RESTSTROMERKENNUNG FÜR FAHRZEUGINTERNE LADEVORRICHTUNG MIT ISOLATIONSWIDERSTANDSÜBERWACHUNGSSCHALTUNG
    DÉTECTION DE COURANT RÉSIDUEL POUR CHARGEUR EMBARQUÉ DE VÉHICULE À L'AIDE D'UN CIRCUIT DE SURVEILLANCE DE RÉSISTANCE D'ISOLATION


    Contributors:
    AGARWAL RACHIT (author) / WANG YIQI (author)

    Publication date :

    2024-11-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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