The electric-vehicular charge and discharge device of the present invention includes a power converter, a grounding unit, a ground fault detector, and a switcher. The power converter is interposed between an external circuit and a pair of power terminals of a secondary battery unit of an electric vehicle, and is configured to convert power between the external circuit and the secondary battery unit. The grounding unit connects at least one of the pair of power terminals of the secondary battery unit to a grounding point to be connected to the power converter. The ground fault detector determines whether a ground fault has occurred in a power supply path between the power converter and the secondary battery unit. The switcher separates the secondary battery unit from the power supply path when the ground fault detector determines that a ground fault has occurred in the power supply path.
ELECTRIC-VEHICULAR CHARGE AND DISCHARGE DEVICE
ELEKTROFAHRZEUG EINLADE- UND AUFLADEGERÄT
DISPOSITIF DE CHARGE ET DÉCHARGE POUR VÉHICULE ÉLECTRIQUE
2017-03-01
Patent
Elektronische Ressource
Englisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |