A power transmission device (300) includes a power transmission coil (42) configured to supply electric power via a wireless connection to a power reception coil (22) mounted on a vehicle (10), a cover (43) covering at least the top surface of the power transmission coil (42) in an axial direction, a foreign-matter detection coil (41) provided between the power transmission coil (42) and the cover (43), and an elevating mechanism (17) configured to move the power transmission coil (42) and the foreign-matter detection coil (41) up and down with respect to the ground while keeping a gap between the power transmission coil (42) and the foreign-matter detection coil (41). The foreign-matter detection coil (41) is separated from the cover (43) with a predetermined distance in the axial direction before detecting foreign matter. The elevating mechanism (17) moves up the foreign-matter detection coil (41) so as to lead a distance between the foreign-matter detection coil (41) and the cover (43) to be shorter than the predetermined distance when the foreign-matter detection coil (41) detects foreign matter.


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    Title :

    POWER TRANSMISSION DEVICE, AND METHOD OF CONTROLLING POWER TRANSMISSION DEVICE


    Additional title:

    ENERGIEÜBERTRAGUNGSVORRICHTUNG UND VERFAHREN ZUR STEUERUNG EINER ENERGIEÜBERTRAGUNGSVORRICHTUNG
    DISPOSITIF DE TRANSMISSION DE PUISSANCE ET PROCÉDÉ DE COMMANDE DE DISPOSITIF DE TRANSMISSION DE PUISSANCE


    Contributors:
    TERADA KOTA (author)

    Publication date :

    2023-02-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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