PROBLEM TO BE SOLVED: To more properly determine a distance between a power transmission coil of a transmission apparatus and a power reception coil of a reception apparatus while suppressing an increase in the number of components.SOLUTION: A non-contact power transmission apparatus estimates a distance Lv in the vehicle height direction between a power transmission coil 134 and a power reception coil 34 according to a vehicle height Hv from a vehicle height sensor as well as a distance Lh in the plane direction between the power transmission coil 134 and the power reception coil 34 using a coupling coefficient k obtained based on an output impedance Zs of a high-frequency power supply circuit 140 and calculates a distance L between the power transmission coil 134 and the power reception coil 34 on the basis of the estimated distance Lv in the vehicle height direction and the distance Lh in the plane direction, and can more exactly obtain a distance L between the power transmission coil 134 and the power reception coil 34 without increasing the number of other components only by mounting the vehicle height sensor.SELECTED DRAWING: Figure 4
【課題】部品点数の増加を抑制しつつ送電装置の送電コイルと受電装置の受電コイルとのコイル間距離をより適正に求める。【解決手段】車高センサからの車高Hvにより送電用コイル134と受電用コイル34の車高方向の距離Lvを推定し、高周波電源回路140の出力インピーダンスZsに基づいて得られる結合係数kにより送電用コイル134と受電用コイル34の平面方向の距離Lhを推定し、推定した車高方向の距離Lvと平面方向の距離Lhとに基づいて送電用コイル134と受電用コイル34のコイル間距離Lを計算する。車高センサを取り付けるだけで、その他の部品点数を増やすことなく、送電用コイル134と受電用コイル34のコイル間距離Lをより正確に得ることができる。【選択図】図4
NON-CONTACT POWER TRANSMISSION/RECEPTION SYSTEM
非接触送受電システム
2016-05-19
Patent
Electronic Resource
Japanese
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 / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
European Patent Office | 2019
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