A wireless power supply system includes a power transmission device (10c) having a power transmission coil (14) and a power receiving device (40) having a power receiving coil (41). The power transmission coil (14) transmits electric power to the power receiving coil (41) via a wireless connection, so as to supply the electric power to a battery (44) installed in the power receiving device (40). The power receiving device (40) includes a first efficiency calculator (55) configured to calculate a first efficiency based on a transmission power command value and the electric power supplied to the battery (44). The power transmission device (10c) includes a second efficiency calculator (31) configured to calculate a second efficiency based on a phase difference between a voltage and a current supplied to the power transmission coil (14). The power transmission device (10c) further includes a control amount calculator (29) configured to control electric power supplied to the power transmission coil (14) according to the transmission power command value, and regulate the electric power supplied to the power transmission coil (14) when the first efficiency falls to a predetermined first threshold efficiency or less or when the second efficiency falls to a predetermined second threshold efficiency or less.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    NON-CONTACT POWER SUPPLY SYSTEM AND POWER TRANSMISSION DEVICE


    Weitere Titelangaben:

    KONTAKTLOSES ENERGIEVERSORGUNGSSYSTEM UND ENERGIEÜBERTRAGUNGSVORRICHTUNG
    SYSTÈME D'ALIMENTATION ÉLECTRIQUE SANS CONTACT ET DISPOSITIF DE TRANSMISSION ÉLECTRIQUE


    Beteiligte:

    Erscheinungsdatum :

    17.10.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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



    POWER TRANSMISSION DEVICE AND NON-CONTACT POWER SUPPLY SYSTEM

    FUJIYOSHI KAZUYUKI | Europäisches Patentamt | 2019

    Freier Zugriff

    NON-CONTACT POWER TRANSMISSION DEVICE AND NON-CONTACT POWER SUPPLY SYSTEM

    KOTANI HIROYUKI | Europäisches Patentamt | 2017

    Freier Zugriff

    NON-CONTACT POWER SUPPLY SYSTEM AND POWER TRANSMISSION DEVICE

    OKAMOTO TOMOFUMI | Europäisches Patentamt | 2016

    Freier Zugriff

    POWER TRANSMISSION DEVICE, POWER TRANSMISSION METHOD, AND NON-CONTACT POWER SUPPLY SYSTEM

    TAKATSU YUJI / HASHIZUME SHO / MAEKAWA YUJI et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Non-contact power supply system and power transmission device

    NAKANISHI TAKUYA / SAKASHITA TOMOKAZU | Europäisches Patentamt | 2022

    Freier Zugriff