A method capable of efficiently adjusting both the resonance frequency and impedance of a resonant system in contactless power transmission by a resonance method is provided. A variable capacitor adjusts a resonance frequency of a secondary self-resonant coil. An impedance matching box adjusts an input impedance of a resonant system. An ECU first adjusts the resonance frequency of the secondary self-resonant coil by controlling the variable capacitor, and after the adjustment of the resonance frequency, adjusts the input impedance of the resonant system by controlling the impedance matching box. During the adjustment of the resonance frequency by the variable capacitor, the ECU sets an impedance of the impedance matching box to a predetermined fixed value.
Contactless power receiving apparatus and vehicle incorporating same, contactless power feeding facility, method of controlling contactless power receiving apparatus, and method of controlling contactless power feeding facility
2017-01-31
Patent
Elektronische Ressource
Englisch
IPC: | H01F MAGNETS , Magnete / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
Europäisches Patentamt | 2017
|Europäisches Patentamt | 2018
|Europäisches Patentamt | 2016
|