A charging controller (25) acquires the power loss of a power transmission coil (31) from a power supply device (100) via wireless communication. A temperature estimation unit (33) estimates the ambient temperature of a power reception coil on the basis of a preset amount of heat generation of a power reception device (200) and the power loss of the power transmission coil (31). In this case, when the positional relationship between the power transmission coil (31) and the power reception coil (41) is shifted from a normal positional relationship, the temperature estimation unit (33) increases, in accordance with the magnitude of positional shift amount, the contribution to a temperature rise due to the power loss of the power transmission coil (31). Accordingly, an abnormal increase in the ambient temperature of the power reception coil (41) can be prevented.


    Access

    Download


    Export, share and cite



    Title :

    TEMPERATURE ESTIMATION DEVICE AND TEMPERATURE ESTIMATION METHOD FOR CONTACTLESS POWER-RECEPTION DEVICE


    Contributors:

    Publication date :

    2018-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01K MEASURING TEMPERATURE , Messen der Temperatur / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung