JP2013172507A - Non-contact power supply system, non-contact power supply unit, non-contact power receiving unit and non-contact power supply method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact power supply system capable of monitoring power transmission efficiency during power supply and supplying electric power to a vehicle, with high power transmission efficiency.SOLUTION: A non-contact power supply system for performing electric power supply from a primary coil 27 to a secondary coil 47 by electromagnetic induction or magnetic resonance comprises: a power receiving circuit 46 for rectifying electric power received by the secondary coil 47 mounted on a vehicle to charge a battery 5; a power supply circuit 26 for converting electric power supplied to the primary coil 27 disposed in a stopping/parking area into a predetermined frequency; the secondary coil 47; the power receiving circuit 46; means 28 and 29 for detecting a voltage value or a current value at a predetermined position in the primary coil 27 and the power supply circuit 26; and means 22 for determining whether or not the detected voltage value or the detected current value is in a predetermined range. When determined that it is not in the predetermined range, the electric power supply is stopped and notified.

Description

本発明は、非接触状態で車両に給電する非接触給電システム、非接触給電装置、その非接触受電装置及び非接触給電方法に関するものである。   The present invention relates to a non-contact power supply system that supplies power to a vehicle in a non-contact state, a non-contact power supply apparatus, a non-contact power reception apparatus, and a non-contact power supply method.

二酸化炭素の排出量及び燃料の消費量を削減することができる車両として、家庭用電源から給電することができ、モータによって走行することが可能なプラグインハイブリッド車又は電気自動車等の車両が普及している。
車両に搭載されたバッテリに給電する給電装置としては、車両に搭載されバッテリに充電する受電装置に、非接触状態で給電する給電装置が、給電ケーブルを接続する手間が省けることから検討されている。
非接触給電を実現する方式の中では、電磁誘導又は磁気共鳴を用いる非放射型の方式と、電磁波を用いる放射型の方式とが主流であり、特に車両では非放射型の方式が有力視されている。 Vehicles such as plug-in hybrid vehicles or electric vehicles that can be powered from a household power source and can be driven by a motor are widely used as vehicles that can reduce carbon dioxide emissions and fuel consumption. ing.
As a power supply device that supplies power to a battery mounted on a vehicle, a power supply device that supplies power in a non-contact state to a power reception device that is mounted on a vehicle and charges the battery is being studied because it saves the trouble of connecting a power supply cable. .
Among the methods for realizing non-contact power feeding, the non-radiation method using electromagnetic induction or magnetic resonance and the radiation method using electromagnetic waves are the mainstream, and in particular, the non-radiation method is considered prominent in vehicles. ing.

特許文献１には、電源からの電力を供給する送電装置と、送電装置と対向する受電装置とを備え、電磁共鳴によって、電源からの電力を非接触で伝達するための非接触給電システムが開示されている。送電装置は、受電装置と電磁共鳴を行なうための共振コイルと、電磁誘導によって、電源からの電力を共振コイルに伝達するように構成された電磁誘導コイルと、共振コイルに発生する電圧を検出するための電圧検出器と、その検出した電圧に関連する信号に基づいて、共振コイルの異常を検出する異常判定部とを備えている。   Patent Document 1 discloses a non-contact power feeding system that includes a power transmission device that supplies power from a power source and a power receiving device that faces the power transmission device, and that transmits power from the power source in a non-contact manner by electromagnetic resonance. Has been. The power transmission device detects a voltage generated in the resonance coil, a resonance coil for performing electromagnetic resonance with the power reception device, an electromagnetic induction coil configured to transmit power from the power source to the resonance coil by electromagnetic induction, and And an abnormality determination unit that detects abnormality of the resonance coil based on a signal related to the detected voltage.

特開２０１１−２１１８５４号公報JP 2011-2111854 A

電磁誘導又は磁気共鳴を用いる非接触給電では、送電効率が低い状態で大電力を送電装置に入力すると、電力を無駄に消費する他、給電装置側に過電圧及び過電流が生じて故障する虞があり、更に電磁波が異常に放射される虞があるという問題がある。   In non-contact power feeding using electromagnetic induction or magnetic resonance, if a large amount of power is input to the power transmission device in a state where power transmission efficiency is low, power is wasted and overvoltage and overcurrent may occur on the power feeding device side, leading to failure. In addition, there is a problem that electromagnetic waves may be emitted abnormally.

本発明は、前述したような事情に鑑みてなされたものであり、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムを提供することを目的とする。
本発明は、また、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムに好適に使用される非接触給電装置を提供することを目的とする。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a non-contact power feeding system that can monitor power transmission efficiency during power feeding and can feed power to a vehicle with high power transmission efficiency. And
Another object of the present invention is to provide a non-contact power feeding device that can be suitably used in a non-contact power feeding system that can monitor power transmission efficiency during power feeding and can feed power to a vehicle with high power transmission efficiency. .

本発明は、また、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムに好適に使用される非接触受電装置を提供することを目的とする。
本発明は、また、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電方法を提供することを目的とする。 Another object of the present invention is to provide a non-contact power receiving apparatus that can be suitably used in a non-contact power feeding system that can monitor power transmission efficiency during power feeding and can feed power to a vehicle with high power transmission efficiency. .
Another object of the present invention is to provide a non-contact power feeding method capable of monitoring power transmission efficiency during power feeding and feeding power to a vehicle with high power transmission efficiency.

第１発明に係る非接触給電システムは、車両に搭載された二次コイルと、該二次コイルが受電した電力を整流してバッテリに充電する受電回路と、車両を駐停車させる駐停車区域に配置された一次コイルと、該一次コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記一次コイルから二次コイルへ電磁誘導又は磁気共鳴により電力供給を行う非接触給電システムであって、前記二次コイル、受電回路、一次コイル及び給電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする。   A non-contact power feeding system according to a first aspect of the present invention includes a secondary coil mounted on a vehicle, a power receiving circuit that rectifies power received by the secondary coil and charges the battery, and a parking / stopping area where the vehicle is parked and stopped. A non-contact power feeding system that includes a primary coil that is arranged and a power feeding circuit that converts power supplied to the primary coil to a predetermined frequency, and supplies power from the primary coil to the secondary coil by electromagnetic induction or magnetic resonance. Means for detecting a voltage value or current value at a predetermined position in the secondary coil, power receiving circuit, primary coil and power feeding circuit, and whether the voltage value or current value detected by the means is within a predetermined range. The power supply is stopped and notified when it is determined that the means is not within a predetermined range.

第１発明に係る非接触給電システム、及び第７発明に係る非接触給電方法では、給電回路が、車両に搭載された二次コイルが受電した電力を整流してバッテリに充電し、給電回路が、駐停車区域に配置された一次コイルに供給する電力を所定周波数に変換し、一次コイルから二次コイルへ電磁誘導又は磁気共鳴により電力供給を行う。二次コイル、受電回路、一次コイル及び給電回路内の所定位置の電圧値又は電流値を検出し、検出した電圧値又は電流値が、所定範囲にあるか否かを判定して、所定範囲にないと判定したときに、電力供給を停止し報知する。   In the non-contact power feeding system according to the first invention and the non-contact power feeding method according to the seventh invention, the power feeding circuit rectifies the power received by the secondary coil mounted on the vehicle and charges the battery, and the power feeding circuit The electric power supplied to the primary coil arranged in the parking and stopping area is converted into a predetermined frequency, and the electric power is supplied from the primary coil to the secondary coil by electromagnetic induction or magnetic resonance. The voltage value or current value at a predetermined position in the secondary coil, power receiving circuit, primary coil, and power feeding circuit is detected, and it is determined whether the detected voltage value or current value is within the predetermined range. When it is determined that there is no power supply, the power supply is stopped and notified.

第２発明に係る非接触給電システムは、前記電力供給を開始する前に、前記バッテリの端子電圧値を検出する手段を更に備え、前記所定範囲は、該手段が検出した端子電圧値に応じて定められるように構成してあることを特徴とする。   The contactless power supply system according to a second aspect of the present invention further includes means for detecting a terminal voltage value of the battery before starting the power supply, and the predetermined range is in accordance with the terminal voltage value detected by the means. It is characterized by being defined.

第２発明に係る非接触給電システムでは、電力供給を開始する前に、バッテリの端子電圧値を検出し、送電効率を判定する為の所定範囲は、その検出した端子電圧値に応じて定められるので、バッテリの端子電圧値が給電する都度変化した場合でも、最適効率で給電することができる。   In the non-contact power feeding system according to the second aspect of the invention, before starting the power supply, the predetermined range for detecting the terminal voltage value of the battery and determining the power transmission efficiency is determined according to the detected terminal voltage value. Therefore, even when the terminal voltage value of the battery changes each time power is supplied, power can be supplied with optimum efficiency.

第３発明に係る非接触給電装置は、車両を駐停車させる駐停車区域に配置されたコイルと、該コイルに供給する電力を所定周波数に変換する給電回路と備え、前記コイルから電磁誘導又は磁気共鳴により電力供給を行う非接触給電装置であって、前記車両側から電圧値又は電流値を受付ける手段と、該手段が受付けた電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする。   A non-contact power feeding device according to a third aspect of the present invention includes a coil disposed in a parking and stopping area where a vehicle is parked and stopped, and a power feeding circuit that converts electric power supplied to the coil into a predetermined frequency, and electromagnetic induction or magnetic from the coil. A contactless power supply device that supplies power by resonance, and determines whether a voltage value or a current value is received from the vehicle side and whether the voltage value or the current value received by the means is within a predetermined range. And a means for stopping and notifying the power supply when it is determined that the means is not within a predetermined range.

第３発明に係る非接触給電装置では、給電回路が、駐停車区域に配置されたコイルに供給する電力を所定周波数に変換し、コイルから電磁誘導又は磁気共鳴により電力供給を行う。車両側から電圧値又は電流値を受付け、受付けた電圧値又は電流値が、所定範囲にあるか否かを判定して、所定範囲にないと判定したときに、電力供給を停止し報知する。   In the non-contact power feeding device according to the third aspect of the invention, the power feeding circuit converts the power supplied to the coil disposed in the parking / stopping zone to a predetermined frequency and supplies power from the coil by electromagnetic induction or magnetic resonance. A voltage value or a current value is received from the vehicle side, and it is determined whether or not the received voltage value or current value is within a predetermined range. When it is determined that the voltage value or current value is not within the predetermined range, the power supply is stopped and notified.

第４発明に係る非接触給電装置は、車両を駐停車させる駐停車区域に配置されたコイルと、該コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記コイルから電磁誘導又は磁気共鳴により電力供給を行う非接触給電装置であって、前記コイル及び給電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする。   A non-contact power feeding device according to a fourth aspect of the present invention includes a coil disposed in a parking and stopping area where a vehicle is parked and stopped, and a power feeding circuit that converts electric power supplied to the coil to a predetermined frequency, and electromagnetic induction or A non-contact power supply device that supplies power by magnetic resonance, a means for detecting a voltage value or a current value at a predetermined position in the coil and the power supply circuit, and a voltage value or a current value detected by the means is within a predetermined range. And a means for determining whether or not the power supply is within a predetermined range. When the means is determined not to be within a predetermined range, the power supply is stopped and notified.

第４発明に係る非接触給電装置では、給電回路が、駐停車区域に配置されたコイルに供給する電力を所定周波数に変換し、コイルから電磁誘導又は磁気共鳴により電力供給を行う。コイル及び給電回路内の所定位置の電圧値又は電流値を検出し、検出した電圧値又は電流値が、所定範囲にあるか否かを判定して、所定範囲にないと判定したときに、電力供給を停止し報知する。   In the non-contact power feeding device according to the fourth aspect of the invention, the power feeding circuit converts the power supplied to the coil disposed in the parking / stopping zone to a predetermined frequency and supplies power from the coil by electromagnetic induction or magnetic resonance. When the voltage value or current value at a predetermined position in the coil and the power feeding circuit is detected, it is determined whether the detected voltage value or current value is within the predetermined range, Stop supply and alert.

第５発明に係る非接触給電装置は、前記電力供給を開始する前に、前記車両側から電圧値を受付ける手段を更に備え、前記所定範囲は、該手段が受付けた電圧値に応じて定められるように構成してあることを特徴とする。   The contactless power supply device according to a fifth aspect of the present invention further includes means for receiving a voltage value from the vehicle side before starting the power supply, and the predetermined range is determined according to the voltage value received by the means. It is configured as described above.

第５発明に係る非接触給電装置では、電力供給を開始する前に、車両側から電圧値を受付け、送電効率を判定する為の所定範囲は、その受付けた電圧値に応じて定められるので、バッテリの端子電圧値が給電する都度変化した場合でも、最適効率で給電することができる。   In the contactless power supply device according to the fifth aspect of the invention, before starting the power supply, the voltage range is received from the vehicle side, and the predetermined range for determining the power transmission efficiency is determined according to the received voltage value. Even when the terminal voltage value of the battery changes each time power is supplied, power can be supplied with optimum efficiency.

第６発明に係る非接触受電装置は、車両に搭載されたコイルと、該コイルが受電した電力を整流してバッテリに充電する受電回路とを備え、前記コイルへ電磁誘導又は磁気共鳴により電力供給を受ける非接触受電装置であって、前記電力供給が開始される前に、前記バッテリの端子電圧値を検出する手段と、該手段が検出した端子電圧値に応じて電圧又は電流の閾値を定める閾値手段と、前記電力供給を受けている際に、前記コイル及び受電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値、及び前記閾値手段が定めた閾値を外部へ送信する手段とを備えることを特徴とする。   A contactless power receiving device according to a sixth aspect of the present invention includes a coil mounted on a vehicle and a power receiving circuit that rectifies the power received by the coil and charges the battery, and supplies power to the coil by electromagnetic induction or magnetic resonance. And a means for detecting a terminal voltage value of the battery, and a threshold value of the voltage or current is determined according to the terminal voltage value detected by the means before the power supply is started. A threshold value means; means for detecting a voltage value or a current value at a predetermined position in the coil and the power receiving circuit when receiving the power supply; a voltage value or a current value detected by the means; and the threshold value means. And a means for transmitting the threshold determined by the above to the outside.

第６発明に係る非接触受電装置では、受電回路が、車両に搭載されたコイルが受電した電力を整流してバッテリに充電し、コイルへ電磁誘導又は磁気共鳴により電力供給を受ける。電力供給が開始される前に、バッテリの端子電圧値を検出し、検出した端子電圧値に応じて電圧又は電流の閾値を定める。電力供給を受けている際に、コイル及び受電回路内の所定位置の電圧値又は電流値を検出し、検出した電圧値又は電流値、及び定めた電圧又は電流の閾値を外部へ送信する。   In the contactless power receiving device according to the sixth aspect of the invention, the power receiving circuit rectifies the power received by the coil mounted on the vehicle, charges the battery, and receives power supply to the coil by electromagnetic induction or magnetic resonance. Before the power supply is started, the terminal voltage value of the battery is detected, and a threshold value of voltage or current is determined according to the detected terminal voltage value. When receiving power supply, the voltage value or current value at a predetermined position in the coil and the power receiving circuit is detected, and the detected voltage value or current value and the threshold value of the determined voltage or current are transmitted to the outside.

第７発明に係る非接触給電方法は、車両に搭載された二次コイルと、該二次コイルが受電した電力を整流してバッテリに充電する受電回路と、車両を駐停車させる駐停車区域に配置された一次コイルと、該一次コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記一次コイルから二次コイルへ電磁誘導又は磁気共鳴により電力供給を行う非接触給電システムの非接触給電方法であって、前記二次コイル、受電回路、一次コイル及び給電回路内の所定位置の電圧値又は電流値を検出し、検出した電圧値又は電流値が、所定範囲にあるか否かを判定し、所定範囲にないと判定したときに、前記電力供給を停止し報知することを特徴とする。   A non-contact power feeding method according to a seventh aspect includes a secondary coil mounted on a vehicle, a power receiving circuit that rectifies the power received by the secondary coil and charges the battery, and a parking / stopping area for parking and stopping the vehicle. A non-contact power feeding system comprising: a primary coil that is arranged; and a power feeding circuit that converts power supplied to the primary coil into a predetermined frequency, and that supplies power from the primary coil to the secondary coil by electromagnetic induction or magnetic resonance. A contact power feeding method, wherein a voltage value or current value at a predetermined position in the secondary coil, power receiving circuit, primary coil and power feeding circuit is detected, and whether or not the detected voltage value or current value is within a predetermined range. The power supply is stopped and notified when it is determined that it is not within the predetermined range.

第１，２発明に係る非接触給電システムによれば、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムを実現することができる。   According to the non-contact power feeding system according to the first and second inventions, it is possible to realize a non-contact power feeding system that can monitor the power transmission efficiency during power feeding and that can feed power to the vehicle with high power transmission efficiency.

第３〜５発明に係る非接触給電装置によれば、給電中に送電効率を監視でき、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムに好適に使用される非接触給電装置を実現することができる。   According to the non-contact power feeding device according to the third to fifth inventions, the non-contact power feeding system can monitor the power transmission efficiency during power feeding, can monitor the power transmission efficiency during power feeding, and can feed the vehicle with high power transmission efficiency. It is possible to realize a non-contact power feeding device that is preferably used for the above.

第６発明に係る非接触受電装置によれば、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電システムに好適に使用され、バッテリの端子電圧値が給電する都度変化した場合でも、最適効率で給電することができる非接触受電装置を実現することができる。   According to the contactless power receiving device according to the sixth aspect of the present invention, the power transmission efficiency can be monitored during power feeding, and the battery terminal voltage value can be suitably used for a contactless power feeding system that can feed power to the vehicle with high power transmission efficiency. Even when the power supply changes every time power is supplied, a non-contact power receiving device that can supply power with optimum efficiency can be realized.

第７発明に係る非接触給電方法によれば、給電中に送電効率を監視でき、送電効率が高い状態で車両に給電することができる非接触給電方法を実現することができる。   According to the non-contact power feeding method according to the seventh aspect of the present invention, it is possible to realize a non-contact power feeding method that can monitor power transmission efficiency during power feeding and that can feed power to the vehicle with high power transmission efficiency.

本発明に係る非接触給電システムの実施の形態の構成を模式的に示す透視側面図である。It is a see-through | perspective side view which shows typically the structure of embodiment of the non-contact electric power feeding system which concerns on this invention. 本発明に係る非接触給電システム、非接触給電装置、非接触受電装置及び非接触給電方法の実施の形態の要部構成を示すブロック図である。It is a block diagram which shows the principal part structure of embodiment of the non-contact electric power feeding system, non-contact electric power feeder, non-contact electric power receiving apparatus, and non-contact electric power feeding method which concern on this invention. 非接触給電システムの動作の例を示すフローチャートである。It is a flowchart which shows the example of operation | movement of a non-contact electric power feeding system. 非接触給電システムの動作の例を示すフローチャートである。It is a flowchart which shows the example of operation | movement of a non-contact electric power feeding system. 非接触給電システムの動作の例を示すフローチャートである。It is a flowchart which shows the example of operation | movement of a non-contact electric power feeding system. 非接触給電システムの動作の例を示すフローチャートである。It is a flowchart which shows the example of operation | movement of a non-contact electric power feeding system.

以下に、本発明をその実施の形態を示す図面に基づき説明する。
（実施の形態１）
図１は、本発明に係る非接触給電システムの実施の形態の構成を模式的に示す透視側面図である。この非接触給電システムでは、車両１００は、駐停車区域２００に前向きに駐停車されている。 Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a perspective side view schematically showing a configuration of an embodiment of a non-contact power feeding system according to the present invention. In this non-contact power supply system, the vehicle 100 is parked in a parking area 200 in a forward direction.

駐停車区域２００は、左右の前輪１１１，１１１を床部（地面）から落とし込む凹部で構成された車止め２１１，２１１と、車止め２１１，２１１中間部の鉛直上方又は鉛直下方に中央部が配された送電コイル２７とを備える。送電コイル２７は、床部と平行な面内で渦巻状に巻回されており、平面視が略円形をなしている。   The parking / stopping area 200 has a central portion arranged vertically or vertically below a car stopper 211, 211 constituted by a recess for dropping the left and right front wheels 111, 111 from the floor (ground), and a middle part of the car stopper 211, 211. A power transmission coil 27. The power transmission coil 27 is wound in a spiral shape in a plane parallel to the floor portion, and has a substantially circular shape in plan view.

車両１００は、左右の前輪１１１，１１１間の中間部の鉛直上方又は鉛直下方に中央部が配された受電コイル４７を備える。受電コイル４７は、送電コイル２７と電磁誘導又は磁気共鳴によって結合されるものであり、車両１００の底部と平行な面内で渦巻状に巻回されており、平面視が略円形をなしている。   The vehicle 100 includes a power receiving coil 47 having a central portion arranged vertically above or vertically below an intermediate portion between the left and right front wheels 111. The power reception coil 47 is coupled to the power transmission coil 27 by electromagnetic induction or magnetic resonance, is wound in a spiral shape in a plane parallel to the bottom of the vehicle 100, and has a substantially circular shape in plan view. .

図２は、本発明に係る非接触給電システム、非接触給電装置、非接触受電装置及び非接触給電方法の実施の形態１の要部構成を示すブロック図である。
この非接触給電システム１は、給電装置２（非接触給電装置）及び受電装置（非接触受電装置）４を備えている。
給電装置２は、報知部２１、制御部２２、受付部２３、通信部２４、記憶部２５、電流供給部（給電回路）２６、送電コイル２７、及び電流供給部２６内の電圧検出器２８を有する。 FIG. 2 is a block diagram showing the main configuration of the first embodiment of the non-contact power feeding system, the non-contact power feeding device, the non-contact power receiving device, and the non-contact power feeding method according to the present invention.
The non-contact power feeding system 1 includes a power feeding device 2 (non-contact power feeding device) and a power receiving device (non-contact power receiving device) 4.
The power supply device 2 includes a notification unit 21, a control unit 22, a reception unit 23, a communication unit 24, a storage unit 25, a current supply unit (power supply circuit) 26, a power transmission coil 27, and a voltage detector 28 in the current supply unit 26. Have.

制御部２２は、共通のバスを介して受付部２３、通信部２４及び記憶部２５に接続し、電流供給部２６に直接接続している。送電コイル２７の両端は、商用電源３から電力供給される電流供給部２６に接続している。
電圧検出器２８は、送電コイル２７及び電流供給部２６内の所定位置の電圧値（例えば、コンデンサの両端電圧値、コイルの両端電圧値等）を検出し、検出した電圧値は制御部２２へ与えられる。尚、本実施の形態１では、電圧検出器２８を有していなくても良い。 The control unit 22 is connected to the reception unit 23, the communication unit 24, and the storage unit 25 via a common bus, and is directly connected to the current supply unit 26. Both ends of the power transmission coil 27 are connected to a current supply unit 26 that is supplied with power from the commercial power source 3.
The voltage detector 28 detects a voltage value at a predetermined position in the power transmission coil 27 and the current supply unit 26 (for example, a voltage value across the capacitor, a voltage value across the coil, etc.), and the detected voltage value is sent to the control unit 22. Given. In the first embodiment, the voltage detector 28 may not be provided.

制御部２２は、マイクロコンピュータ及びコンパレータ等の部品によって構成され、電圧検出器２８から与えられた電圧値と基準電圧値とを比較する。
制御部２２は、通信部２４が受電装置４の後述する通信部４１から開始信号を受信した場合、開始信号に含まれる受電装置４の認証情報を読み出し、読み出した認証情報を記憶部２５に記憶する。 The control unit 22 is configured by components such as a microcomputer and a comparator, and compares the voltage value supplied from the voltage detector 28 with a reference voltage value.
When the communication unit 24 receives a start signal from a communication unit 41 (described later) of the power receiving device 4, the control unit 22 reads the authentication information of the power receiving device 4 included in the start signal and stores the read authentication information in the storage unit 25. To do.

制御部２２は、通信部２４が受電装置４の通信部４１から開始信号を受信した場合、通信部２４に指示して、給電装置２及び受電装置４間で一対一の通信を確立し、一対一の通信が確立した旨を通知する通知信号を通信部４１に送信する。
制御部２２は、通知信号を送信した後、給電を開始し、給電中は送電効率が正常に給電できる範囲内であるか否かを判定し、送電効率が正常に給電できる範囲内でないと判定したときは、給電を停止する。
報知部２１は、送電効率が正常に給電できる範囲でないと判定され、給電が停止された場合に、視覚又は聴覚により報知する。 When the communication unit 24 receives a start signal from the communication unit 41 of the power receiving device 4, the control unit 22 instructs the communication unit 24 to establish one-to-one communication between the power feeding device 2 and the power receiving device 4. A notification signal for notifying that one communication has been established is transmitted to the communication unit 41.
After transmitting the notification signal, the control unit 22 starts power feeding, determines whether the power transmission efficiency is within a range where power can be normally fed during power feeding, and determines that the power transmission efficiency is not within a range where power can be fed normally. If this happens, power supply is stopped.
When it is determined that the power transmission efficiency is not within a range where power can be normally supplied and the power supply is stopped, the notification unit 21 notifies the user visually or auditorily.

制御部２２は、送電コイル２７に交流電流が供給されている間に、受付部２３がバッテリ５への給電の停止指示を受け付けた場合、電流供給部２６に指示して送電コイル２７への電流供給を停止させる。また、通信部２４が受電装置４からバッテリ５への給電の停止を指示する停止信号を受信し、受信した停止信号に含まれる認証情報が記憶部２５に記憶してある認証情報と一致した場合、電流供給部２６に指示して送電コイル２７への電流供給を停止させる。   When the receiving unit 23 receives an instruction to stop power supply to the battery 5 while the alternating current is supplied to the power transmission coil 27, the control unit 22 instructs the current supply unit 26 to supply current to the power transmission coil 27. Stop supplying. Further, when the communication unit 24 receives a stop signal instructing to stop power supply from the power receiving device 4 to the battery 5, and the authentication information included in the received stop signal matches the authentication information stored in the storage unit 25. Then, the current supply unit 26 is instructed to stop the current supply to the power transmission coil 27.

受付部２３は複数のボタン及びタッチパネル等によって構成される。受付部２３は、ボタン等がユーザによって操作されて停止指示を受け付けた場合にその旨を制御部２２に通知する。
通信部２４は、通信部４１から開始信号を受信し、受信した開始信号を制御部２２に出力する。更に、通信部２４は、制御部２２の指示に従って認証情報を含む通知信号を無線で通信部４１に送信する。
記憶部２５には受電装置４の認証情報が記憶してあり、制御部２２によって認証情報の記憶及び読出しが行われる。 The receiving unit 23 includes a plurality of buttons and a touch panel. When the button or the like is operated by the user and a stop instruction is received, the reception unit 23 notifies the control unit 22 to that effect.
The communication unit 24 receives a start signal from the communication unit 41 and outputs the received start signal to the control unit 22. Further, the communication unit 24 wirelessly transmits a notification signal including authentication information to the communication unit 41 in accordance with an instruction from the control unit 22.
The storage unit 25 stores authentication information of the power receiving device 4, and the control unit 22 stores and reads the authentication information.

電流供給部２６は、制御部２２からの指示に従って、送電コイル２７への電流供給を行う。電流供給部２６は、電流供給を行う場合、商用電源３からの電力を高周波、例えば数十ｋＨｚの交流電流に変換して、送電コイル２７の両端に供給する。
送電コイル２７は、ループコイル、スパイラルコイル、又は、磁性体コアに導線を巻きつけたコイル等によって構成され、電流供給部２６によって交流電流が供給される。送電コイル２７に交流電流が供給された場合、電磁誘導によって受電コイル４７に交流電力が発生する。 The current supply unit 26 supplies current to the power transmission coil 27 in accordance with an instruction from the control unit 22. When supplying current, the current supply unit 26 converts the electric power from the commercial power supply 3 into a high frequency, for example, an alternating current of several tens of kHz, and supplies it to both ends of the power transmission coil 27.
The power transmission coil 27 is configured by a loop coil, a spiral coil, a coil in which a conductive wire is wound around a magnetic core, or the like, and an alternating current is supplied by the current supply unit 26. When an AC current is supplied to the power transmission coil 27, AC power is generated in the power reception coil 47 by electromagnetic induction.

受電装置４は、制御部４０、通信部４１、受付部４２、表示部４３、記憶部４４、計時部４５、電力変換部（受電回路）４６、受電コイル４７、及び電力変換部４６内の電圧検出器２９，３０を備えている。
制御部４０は、共通のバスを介して通信部４１、受付部４２、表示部４３、記憶部４４、計時部４５及び電力変換部４６に接続している。電力変換部４６はバッテリ５の両端に接続されている。電圧検出器３０は、バッテリ５の両端電圧値を検出し、検出した両端電圧値は制御部４０へ与えられる。 The power reception device 4 includes a control unit 40, a communication unit 41, a reception unit 42, a display unit 43, a storage unit 44, a time measurement unit 45, a power conversion unit (power reception circuit) 46, a power reception coil 47, and a voltage in the power conversion unit 46. Detectors 29 and 30 are provided.
The control unit 40 is connected to the communication unit 41, the reception unit 42, the display unit 43, the storage unit 44, the time measuring unit 45, and the power conversion unit 46 through a common bus. The power conversion unit 46 is connected to both ends of the battery 5. The voltage detector 30 detects the voltage value across the battery 5, and the detected voltage value across the battery 5 is given to the control unit 40.

受電コイル４７の両端は電力変換部４６に接続している。電圧検出器２９は、受電コイル４７及び電力変換部４６内の所定位置の電圧値（例えば、ダイオードの両端電圧値、チョークコイルの両端電圧値等）を検出し、検出した電圧値は制御部４０へ与えられる。   Both ends of the power receiving coil 47 are connected to the power converter 46. The voltage detector 29 detects a voltage value at a predetermined position in the power receiving coil 47 and the power conversion unit 46 (for example, a voltage value at both ends of the diode, a voltage value at both ends of the choke coil), and the detected voltage value is the control unit 40. Given to.

マイクロコンピュータからなる制御部４０は、受付部４２が開始指示を受け付けた場合、受電装置４の認証情報を記憶部４４から読み出し、読み出した認証情報を含む開始信号を通信部４１から給電装置２の通信部２４に送信させる。
制御部４０は、通信部４１から開始信号を通信部２４へ送信させた後、計時部４５に指示して、通信部２４から通知信号を受信する為に待機している時間を計時させ、通信部４１が通知信号を受信するまで待機する。制御部４０は、待機時間が所定時間を経過しても通信部４１が通信部２４から通知信号を受信していない場合、給電装置２及び受電装置４間で一対一の通信が確立されなかった旨のメッセージを表示部４３に出力して待機を終了する。 When the receiving unit 42 receives a start instruction, the control unit 40 including a microcomputer reads the authentication information of the power receiving device 4 from the storage unit 44 and sends a start signal including the read authentication information from the communication unit 41 to the power supply device 2. The data is transmitted to the communication unit 24.
After transmitting the start signal from the communication unit 41 to the communication unit 24, the control unit 40 instructs the time measuring unit 45 to time the time waiting for receiving the notification signal from the communication unit 24, and Wait until the unit 41 receives the notification signal. When the communication unit 41 has not received a notification signal from the communication unit 24 even after the predetermined time has elapsed, the control unit 40 has not established a one-to-one communication between the power supply device 2 and the power reception device 4. A message to that effect is output to the display unit 43 and the standby is completed.

制御部４０は、通信部４１が所定時間内に通知信号を受信した場合、受付部４２が停止指示を受け付けたか否か、及び、バッテリ５が満充電であるか否かを判定する。制御部４０は、電圧検出器３０が検出したバッテリ５の両端電圧値を与えられ、与えられた電圧値が所定電圧値以上であるか否かを判定することによってバッテリ５が満充電であるか否かを判定する。
制御部４０は、電力変換部４６がバッテリ５に給電している間に、受付部４２が停止指示を受け付けた場合、又は、バッテリ５の電圧が所定電圧値以上となり、バッテリ５が満充電であると判定した場合、通信部４１に指示して受電装置４の認証情報を含む停止信号を給電装置２の通信部２４に送信させる。 When the communication unit 41 receives the notification signal within a predetermined time, the control unit 40 determines whether the reception unit 42 has received a stop instruction and whether the battery 5 is fully charged. Whether the battery 5 is fully charged is determined by the control unit 40 being given a voltage value across the battery 5 detected by the voltage detector 30 and determining whether the given voltage value is equal to or greater than a predetermined voltage value. Determine whether or not.
When the receiving unit 42 receives a stop instruction while the power conversion unit 46 is supplying power to the battery 5, or when the voltage of the battery 5 exceeds a predetermined voltage value, the control unit 40 is fully charged. If it is determined that there is, the communication unit 41 is instructed to transmit a stop signal including authentication information of the power receiving device 4 to the communication unit 24 of the power feeding device 2.

通信部４１は、制御部４０の指示に従って開始信号又は停止信号を通信部２４に無線で送信する。
受付部４２は、複数のボタン及びタッチパネル等によって構成され、ボタン等がユーザによって操作されて開始指示及び停止指示を受け付け、その旨を制御部４０に通知する。 The communication unit 41 wirelessly transmits a start signal or a stop signal to the communication unit 24 in accordance with an instruction from the control unit 40.
The receiving unit 42 includes a plurality of buttons, a touch panel, and the like. The buttons are operated by the user to receive a start instruction and a stop instruction, and notify the control unit 40 accordingly.

表示部４３は、制御部４０からメッセージを受け付けた場合に、受け付けたメッセージを表示する。これにより、ユーザに、給電装置２及び受電装置４で一対一の通信が確立されなかった旨が報知され、受付部４２を操作して再び給電の開始を指示するようにユーザに促すことができる。   When the message is received from the control unit 40, the display unit 43 displays the received message. As a result, the user is notified that the one-to-one communication has not been established between the power feeding device 2 and the power receiving device 4, and the user can be prompted to operate the reception unit 42 to instruct the start of power feeding again. .

記憶部４４には受電装置４の認証情報が記憶してあり、制御部４０によって読み出される。
計時部４５は、制御部４０の指示に従って計時の開始及び終了を行い、通信部４１が開始信号を送信してから通知信号を受信する為に待機している待機時間を計時する。 The storage unit 44 stores authentication information of the power receiving device 4 and is read out by the control unit 40.
The timer 45 starts and ends timing according to the instruction of the controller 40, and measures the waiting time that is waiting for the communication unit 41 to receive the notification signal after transmitting the start signal.

電力変換部４６は、受電コイル４７から出力される交流電力を整流して直流電力に変換し、変換した直流電力をバッテリ５に供給する。
受電コイル４７は、送電コイル２７と同様に、ループコイル、スパイラルコイル、又は、磁性体コアに導線を巻きつけたコイル等によって構成される。受電コイル４７には、送電コイル２７に高周波の交流電流が供給されて、電磁誘導により高周波の交流電力が発生し、発生した交流電力は電力変換部４６に出力される。 The power converter 46 rectifies the AC power output from the power receiving coil 47 to convert it to DC power, and supplies the converted DC power to the battery 5.
Similarly to the power transmission coil 27, the power reception coil 47 is configured by a loop coil, a spiral coil, a coil in which a conductive wire is wound around a magnetic core, or the like. The power receiving coil 47 is supplied with a high-frequency AC current to the power transmission coil 27, and high-frequency AC power is generated by electromagnetic induction. The generated AC power is output to the power converter 46.

図３，４は、非接触給電システム１の動作の例を示すフローチャートである。
非接触給電システム１の受電装置４が有する制御部４０は、受付部４２が開始指示を受付けたか否かを判定しながら待機しており（Ｓ２３）、受付部４２が開始指示を受付けた場合は、電圧検出器３０にバッテリ５の端子電圧値を検出させる（Ｓ２５）。 3 and 4 are flowcharts showing an example of the operation of the non-contact power feeding system 1.
The control unit 40 included in the power receiving device 4 of the non-contact power feeding system 1 is on standby while determining whether or not the reception unit 42 has received a start instruction (S23), and when the reception unit 42 has received a start instruction The voltage detector 30 is made to detect the terminal voltage value of the battery 5 (S25).

制御部４０は、電圧検出器３０が検出したバッテリ５の端子電圧値（Ｓ２５）に基づき、送電効率が正常な範囲内であるか否かを判定する為の電圧閾値を決定する（Ｓ２７）。電圧閾値は、送電効率の正常範囲に対応する電圧検出器２９の検出電圧値の正常範囲（所定範囲）を定めるものであり、この正常範囲は、電圧閾値より大きい範囲となる。電圧検出器２９は、受電コイル４７及び電力変換部４６内の所定位置の電圧値（例えば、ダイオードの両端電圧値、チョークコイルの両端電圧値等）を検出する。   Based on the terminal voltage value (S25) of the battery 5 detected by the voltage detector 30, the control unit 40 determines a voltage threshold for determining whether or not the power transmission efficiency is within a normal range (S27). The voltage threshold defines a normal range (predetermined range) of the detection voltage value of the voltage detector 29 corresponding to the normal range of power transmission efficiency, and this normal range is a range larger than the voltage threshold. The voltage detector 29 detects voltage values (for example, voltage values at both ends of the diode, voltage values at both ends of the choke coil) at predetermined positions in the power receiving coil 47 and the power conversion unit 46.

制御部４０は、次に、通信部４１から開始信号及び決定した電圧閾値（正常範囲）を送信させる（Ｓ２９）。
尚、本フローチャートでは、上述した認証情報に係る動作、待機時間の計時動作等は省略している。 Next, the control unit 40 causes the communication unit 41 to transmit a start signal and the determined voltage threshold (normal range) (S29).
In the flowchart, the above-described operation related to the authentication information, the timing operation for the standby time, and the like are omitted.

給電装置２の制御部２２は、通信部２４が開始信号及び電圧閾値を受信したか否かを判定しながら待機しており（Ｓ１）、開始信号及び電圧閾値を受信した場合、電流供給部２６に給電を開始させる（Ｓ３）。
制御部４０は、開始信号及び電圧閾値を送信させ（Ｓ２９）、給電が開始されれば、電圧検出器２９に、受電コイル４７及び電力変換部４６内の所定位置の電圧値を検出させる（Ｓ３１）。
制御部４０は、次に、検出させた電圧値（Ｓ３１）を、通信部４１から送信させる（Ｓ３３）。尚、電圧閾値（正常範囲）（Ｓ２９）は、電圧値を送信する際（Ｓ３３）に送信するようにしても良い。 The control unit 22 of the power supply apparatus 2 stands by while determining whether or not the communication unit 24 has received the start signal and the voltage threshold (S1). When the start signal and the voltage threshold are received, the current supply unit 26 Power supply is started (S3).
The control unit 40 transmits a start signal and a voltage threshold (S29), and when power feeding is started, causes the voltage detector 29 to detect a voltage value at a predetermined position in the power receiving coil 47 and the power conversion unit 46 (S31). ).
Next, the control unit 40 causes the communication unit 41 to transmit the detected voltage value (S31) (S33). The voltage threshold (normal range) (S29) may be transmitted when the voltage value is transmitted (S33).

制御部２２は、給電を開始させた（Ｓ３）後、通信部２４が、電圧検出器２９が検出した電圧値を受信したか否かを判定しながら待機しており（Ｓ５）、電圧値を受信した場合、その電圧値が、受信した電圧閾値（Ｓ１）より小さいか否かを判定する（Ｓ７）。
制御部２２は、判定した結果（Ｓ７）、電圧閾値より小さければ（正常範囲外）（Ｓ９）、送電効率が低いことを報知部２１に報知させた（Ｓ１１）後、通信部２４から停止信号を送信させる（Ｓ１３）。尚、送電効率が低いことは、報知部２１に報知させる（Ｓ１１）他、通信部２４，４１経由で表示部４３に表示させることも可能である。 After starting power supply (S3), the control unit 22 waits while determining whether or not the communication unit 24 has received the voltage value detected by the voltage detector 29 (S5). If received, it is determined whether or not the voltage value is smaller than the received voltage threshold (S1) (S7).
If the determination result (S7) is smaller than the voltage threshold (outside the normal range) (S9), the control unit 22 informs the notification unit 21 that the power transmission efficiency is low (S11), and then sends a stop signal from the communication unit 24. Is transmitted (S13). In addition, let the alerting | reporting part 21 alert | report that power transmission efficiency is low, and also it can display on the display part 43 via the communication parts 24 and 41. FIG.

制御部２２は、停止信号を送信させた（Ｓ１３）後、電流供給部２６に給電を停止させる（Ｓ１７）。
制御部４０は、電圧値を送信させた（Ｓ３３）後、通信部４１が停止信号を受信したか否かを判定しながら待機しており（Ｓ３５）、停止信号を受信した場合、受付部４２が開始指示を受付けたか否かを判定しながら待機する（Ｓ２３）。
制御部４０は、通信部４１が停止信号を受信しない場合（Ｓ３５）、電圧検出器３０にバッテリ５の端子電圧値を検出させる（Ｓ３７）。 After transmitting the stop signal (S13), the control unit 22 causes the current supply unit 26 to stop supplying power (S17).
After transmitting the voltage value (S33), the control unit 40 waits while determining whether or not the communication unit 41 has received a stop signal (S35). Waits while determining whether or not a start instruction has been received (S23).
When the communication unit 41 does not receive the stop signal (S35), the control unit 40 causes the voltage detector 30 to detect the terminal voltage value of the battery 5 (S37).

制御部４０は、検出させたバッテリ５の端子電圧値（Ｓ３７）に基づき、バッテリ５が満充電になったか否かを判定し（Ｓ３９）、満充電になっていなければ、再度、電圧検出器２９に、受電コイル４７及び電力変換部４６内の所定位置の電圧値を検出させる（Ｓ３１）。
制御部４０は、バッテリ５が満充電になったときは（Ｓ３９）、通信部４１から停止信号を送信させ（Ｓ４１）、次いで、受付部４２が開始指示を受付けたか否かを判定しながら待機する（Ｓ２３）。 The control unit 40 determines whether or not the battery 5 is fully charged based on the detected terminal voltage value (S37) of the battery 5 (S39). If the battery 5 is not fully charged, the voltage detector is again detected. 29 is made to detect the voltage value of the predetermined position in the receiving coil 47 and the power converter 46 (S31).
When the battery 5 is fully charged (S39), the control unit 40 transmits a stop signal from the communication unit 41 (S41), and then waits while determining whether the reception unit 42 has received a start instruction. (S23).

制御部２２は、判定した結果（Ｓ７）、電圧閾値より小さくなければ（正常範囲内）（Ｓ９）、通信部２４が停止信号を受信したか否かを判定しながら待機しており（Ｓ１５）、停止信号を受信した場合、電流供給部２６に送電コイル２７への給電を停止させる（Ｓ１７）。
制御部２２は、次いで、通信部２４が開始信号及び電圧閾値を受信したか否かを判定しながら待機する（Ｓ１）。
制御部２２は、通信部２４が停止信号を受信しない場合（Ｓ１５）、通信部２４が、電圧検出器２９が検出した電圧値を受信したか否かを判定しながら待機する（Ｓ５）。 If the result of determination (S7) is not smaller than the voltage threshold (within the normal range) (S9), the control unit 22 waits while determining whether the communication unit 24 has received a stop signal (S15). When the stop signal is received, the current supply unit 26 stops the power feeding to the power transmission coil 27 (S17).
Next, the control unit 22 waits while determining whether or not the communication unit 24 has received the start signal and the voltage threshold (S1).
When the communication unit 24 does not receive the stop signal (S15), the control unit 22 waits while determining whether or not the communication unit 24 has received the voltage value detected by the voltage detector 29 (S5).

尚、本実施の形態１では、受電コイル４７及び電力変換部４６内の所定位置の電圧値を検出し、検出した電圧値及び電圧閾値により、送電効率が正常範囲であるか否かを判定しているが、受電コイル４７及び電力変換部４６内の所定位置に通流する電流値を検出し、検出した電流値及び電流閾値により、送電効率を判定しても良い。   In the first embodiment, voltage values at predetermined positions in the power receiving coil 47 and the power conversion unit 46 are detected, and it is determined whether or not the power transmission efficiency is in a normal range based on the detected voltage value and voltage threshold. However, the current value flowing through a predetermined position in the power receiving coil 47 and the power converter 46 may be detected, and the power transmission efficiency may be determined based on the detected current value and the current threshold value.

（実施の形態２）
図５，６は、本発明に係る非接触給電システム、非接触給電装置、非接触受電装置及び非接触給電方法の実施の形態２の非接触給電システムの動作の例を示すフローチャートである。本実施の形態２の非接触給電システムの構成は、図１，２で説明した非接触給電システムの構成と同様であるので、説明を省略する。尚、本実施の形態２では、電圧検出器２９を有していなくても良い。
非接触給電システム１が有する受電装置４の制御部４０は、受付部４２が開始指示を受付けたか否かを判定しながら待機しており（Ｓ７１）、受付部４２が開始指示を受付けた場合は、電圧検出器３０にバッテリ５の端子電圧値を検出させる（Ｓ７３）。 (Embodiment 2)
5 and 6 are flowcharts showing an example of the operation of the non-contact power feeding system according to the second embodiment of the non-contact power feeding system, the non-contact power feeding device, the non-contact power receiving device, and the non-contact power feeding method according to the present invention. The configuration of the non-contact power feeding system according to the second embodiment is the same as the configuration of the non-contact power feeding system described with reference to FIGS. In the second embodiment, the voltage detector 29 may not be provided.
The control unit 40 of the power receiving device 4 included in the non-contact power feeding system 1 is on standby while determining whether or not the reception unit 42 has received a start instruction (S71), and when the reception unit 42 has received a start instruction, The voltage detector 30 is made to detect the terminal voltage value of the battery 5 (S73).

制御部４０は、電圧検出器３０が検出したバッテリ５の端子電圧値（Ｓ７３）に基づき、送電効率が正常な範囲内であるか否かを判定する為の電圧閾値を決定する（Ｓ７５）。電圧閾値は、送電効率の正常範囲に対応する電圧検出器２８の検出電圧値の正常範囲（所定範囲）を定めるものであり、この正常範囲は、電圧閾値より小さい範囲となる。電圧検出器２８は、送電コイル２７及び電流供給部２６内の所定位置の電圧値（例えば、コンデンサの両端電圧値、コイルの両端電圧値等）を検出する。   Based on the terminal voltage value (S73) of the battery 5 detected by the voltage detector 30, the control unit 40 determines a voltage threshold for determining whether the power transmission efficiency is within a normal range (S75). The voltage threshold defines a normal range (predetermined range) of the detection voltage value of the voltage detector 28 corresponding to the normal range of power transmission efficiency, and this normal range is smaller than the voltage threshold. The voltage detector 28 detects a voltage value at a predetermined position in the power transmission coil 27 and the current supply unit 26 (for example, a voltage value across the capacitor, a voltage value across the coil, etc.).

制御部４０は、次に、通信部４１から開始信号及び決定した電圧閾値（正常範囲）を送信させる（Ｓ７７）。
尚、本フローチャートでは、上述した認証情報に係る動作、待機時間の計時動作等は省略している。 Next, the control unit 40 causes the communication unit 41 to transmit a start signal and the determined voltage threshold (normal range) (S77).
In the flowchart, the above-described operation related to the authentication information, the timing operation for the standby time, and the like are omitted.

給電装置２の制御部２２は、通信部２４が開始信号及び電圧閾値を受信したか否かを判定しながら待機しており（Ｓ５１）、開始信号を受信した場合、電流供給部２６に給電を開始させる（Ｓ５３）。
制御部２２は、電流供給部２６に給電を開始させた（Ｓ５３）後、電圧検出器２８に、送電コイル２７及び電流供給部２６内の所定位置の電圧値を検出させる（Ｓ５５）。
制御部２２は、次に、検出させた電圧値（Ｓ５５）が、受信した電圧閾値（Ｓ５１）より大きいか否かを判定する（Ｓ５７）。 The control unit 22 of the power supply apparatus 2 is on standby while determining whether or not the communication unit 24 has received the start signal and the voltage threshold (S51). When the start signal is received, the current supply unit 26 is supplied with power. Start (S53).
The control unit 22 causes the current supply unit 26 to start supplying power (S53), and then causes the voltage detector 28 to detect voltage values at predetermined positions in the power transmission coil 27 and the current supply unit 26 (S55).
Next, the control unit 22 determines whether or not the detected voltage value (S55) is larger than the received voltage threshold value (S51) (S57).

制御部２２は、判定した結果（Ｓ５７）、電圧閾値より大きければ（正常範囲外）（Ｓ５９）、送電効率が低いことを報知部２１に報知させた（Ｓ６１）後、通信部２４から停止信号を送信させる（Ｓ６３）。尚、送電効率が低いことは、報知部２１に報知させる（Ｓ６１）他、通信部２４，４１経由で表示部４３に表示させることも可能である。制御部２２は、停止信号を送信させた（Ｓ６３）後、電流供給部２６に給電を停止させる（Ｓ６７）。   If the result of determination (S57) is greater than the voltage threshold (outside the normal range) (S59), the control unit 22 informs the notification unit 21 that the power transmission efficiency is low (S61), and then sends a stop signal from the communication unit 24. Is transmitted (S63). In addition, let the alerting | reporting part 21 alert | report that power transmission efficiency is low, and also it can display on the display part 43 via the communication parts 24 and 41. FIG. The control unit 22 transmits a stop signal (S63), and then causes the current supply unit 26 to stop supplying power (S67).

制御部２２は、判定した結果（Ｓ５９）、電圧閾値より大きくなければ（正常範囲内）、通信部２４が停止信号を受信したか否かを判定しながら待機する（Ｓ６５）。制御部２２は、停止信号を受信した場合（Ｓ６５）、電流供給部２６に送電コイル２７への給電を停止させた（Ｓ６７）後、通信部２４が開始信号及び電圧閾値を受信したか否かを判定しながら待機する（Ｓ５１）。
制御部２２は、停止信号を受信しない場合（Ｓ６５）、電圧検出器２８に、送電コイル２７及び電流供給部２６内の所定位置の電圧値を検出させる（Ｓ５５）。 If the result of determination (S59) is not greater than the voltage threshold (within the normal range), the control unit 22 waits while determining whether the communication unit 24 has received a stop signal (S65). When receiving the stop signal (S65), the control unit 22 causes the current supply unit 26 to stop feeding the power transmission coil 27 (S67), and then whether or not the communication unit 24 has received the start signal and the voltage threshold value. (S51).
When the control unit 22 does not receive the stop signal (S65), the control unit 22 causes the voltage detector 28 to detect voltage values at predetermined positions in the power transmission coil 27 and the current supply unit 26 (S55).

制御部４０は、開始信号及び電圧閾値（正常範囲）を送信させた（Ｓ７７）後、通信部４１が停止信号を受信したか否かを判定しながら待機しており（Ｓ７９）、停止信号を受信した場合、受付部４２が開始指示を受付けたか否かを判定しながら待機する（Ｓ７１）。
制御部４０は、開始信号及び電圧閾値を送信させた（Ｓ７７）後、給電が開始され、停止信号を受信しない場合（Ｓ７９）、電圧検出器３０にバッテリ５の端子電圧値を検出させる（Ｓ８１）。 After transmitting the start signal and the voltage threshold (normal range) (S77), the control unit 40 waits while determining whether the communication unit 41 has received the stop signal (S79). If received, the process waits while determining whether or not the reception unit 42 has received a start instruction (S71).
The control unit 40 causes the voltage detector 30 to detect the terminal voltage value of the battery 5 when the power supply is started and the stop signal is not received (S79) after the start signal and the voltage threshold are transmitted (S77) (S81). ).

制御部４０は、検出させたバッテリ５の端子電圧値（Ｓ８１）に基づき、バッテリ５が満充電になったか否かを判定し（Ｓ８３）、満充電になっていなければ、再度、通信部４１が停止信号を受信したか否かを判定する（Ｓ７９）。
制御部４０は、バッテリ５が満充電になったときは（Ｓ８３）、通信部４１から停止信号を送信させ（Ｓ８５）、次いで、受付部４２が開始指示を受付けたか否かを判定しながら待機する（Ｓ７１）。 The control unit 40 determines whether or not the battery 5 is fully charged based on the detected terminal voltage value (S81) of the battery 5 (S83). If the battery 5 is not fully charged, the communication unit 41 again. It is determined whether or not has received a stop signal (S79).
When the battery 5 is fully charged (S83), the control unit 40 transmits a stop signal from the communication unit 41 (S85), and then waits while determining whether the reception unit 42 has received a start instruction. (S71).

尚、本実施の形態２では、送電コイル２７及び電流供給部２６内の所定位置の電圧値を検出し、検出した電圧値及び電圧閾値により、送電効率が正常範囲であるか否かを判定しているが、送電コイル２７及び電流供給部２６内の所定位置に通流する電流値を検出し、検出した電流値及び電流閾値により、送電効率を判定しても良い。   In the second embodiment, voltage values at predetermined positions in the power transmission coil 27 and the current supply unit 26 are detected, and it is determined whether the power transmission efficiency is in a normal range based on the detected voltage value and voltage threshold. However, the current value flowing through a predetermined position in the power transmission coil 27 and the current supply unit 26 may be detected, and the power transmission efficiency may be determined based on the detected current value and the current threshold value.

１ 非接触給電システム
２ 給電装置（非接触給電装置）
３ 商用電源
４ 受電装置（非接触受電装置）
５ バッテリ
２１ 報知部
２２ 制御部（判定する手段）
２６ 電流供給部（給電回路）
２７ 送電コイル（一次コイル）
２８，２９ 電圧検出器（所定位置の電圧値を検出する手段）
３０ 電圧検出器（端子電圧値を検出する手段）
４０ 制御部（閾値手段）
４６ 電力変換部（受電回路）
４７ 受電コイル（二次コイル）
２４，４１ 通信部（受付ける手段）
１００ 車両 1 Non-contact power supply system 2 Power supply device (Non-contact power supply device)
3 Commercial power supply 4 Power receiving device (non-contact power receiving device)
5 Battery 21 Notification unit 22 Control unit (determination unit)
26 Current supply unit (feeding circuit)
27 Power transmission coil (primary coil)
28, 29 Voltage detector (means for detecting a voltage value at a predetermined position)
30 Voltage detector (means for detecting terminal voltage value)
40 Control unit (threshold means)
46 Power converter (power receiving circuit)
47 Receiving coil (secondary coil)
24, 41 Communication unit (means to accept)
100 vehicles

Claims (7)

車両に搭載された二次コイルと、該二次コイルが受電した電力を整流してバッテリに充電する受電回路と、車両を駐停車させる駐停車区域に配置された一次コイルと、該一次コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記一次コイルから二次コイルへ電磁誘導又は磁気共鳴により電力供給を行う非接触給電システムであって、
前記二次コイル、受電回路、一次コイル及び給電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする非接触給電システム。 A secondary coil mounted on the vehicle; a power receiving circuit that rectifies the power received by the secondary coil and charges the battery; a primary coil disposed in a parking and stopping area where the vehicle is parked and parked; and A non-contact power supply system that includes a power supply circuit that converts power to be supplied into a predetermined frequency, and supplies power from the primary coil to the secondary coil by electromagnetic induction or magnetic resonance,
Means for detecting a voltage value or current value at a predetermined position in the secondary coil, power receiving circuit, primary coil and power feeding circuit, and determining whether the voltage value or current value detected by the means is within a predetermined range. A non-contact power feeding system configured to stop and notify the power supply when it is determined that the means is not within a predetermined range. 前記電力供給を開始する前に、前記バッテリの端子電圧値を検出する手段を更に備え、前記所定範囲は、該手段が検出した端子電圧値に応じて定められるように構成してある請求項１記載の非接触給電システム。   2. The apparatus according to claim 1, further comprising means for detecting a terminal voltage value of the battery before starting the power supply, wherein the predetermined range is determined according to the terminal voltage value detected by the means. The non-contact power feeding system described. 車両を駐停車させる駐停車区域に配置されたコイルと、該コイルに供給する電力を所定周波数に変換する給電回路と備え、前記コイルから電磁誘導又は磁気共鳴により電力供給を行う非接触給電装置であって、
前記車両側から電圧値又は電流値を受付ける手段と、該手段が受付けた電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする非接触給電装置。 A non-contact power feeding device that includes a coil disposed in a parking and stopping area for parking and stopping a vehicle, and a power feeding circuit that converts power supplied to the coil into a predetermined frequency, and that supplies power from the coil by electromagnetic induction or magnetic resonance. There,
A means for receiving a voltage value or a current value from the vehicle side; a means for determining whether the voltage value or the current value received by the means is within a predetermined range; and determining that the means is not within the predetermined range When this is done, the non-contact power feeding device is configured to stop and notify the power supply. 車両を駐停車させる駐停車区域に配置されたコイルと、該コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記コイルから電磁誘導又は磁気共鳴により電力供給を行う非接触給電装置であって、
前記コイル及び給電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値が、所定範囲にあるか否かを判定する手段とを備え、該手段が所定範囲にないと判定したときに、前記電力供給を停止し報知するように構成してあることを特徴とする非接触給電装置。 A non-contact power supply device that includes a coil disposed in a parking and stopping area for parking and stopping a vehicle, and a power supply circuit that converts electric power supplied to the coil into a predetermined frequency, and supplies power from the coil by electromagnetic induction or magnetic resonance Because
A means for detecting a voltage value or a current value at a predetermined position in the coil and the power supply circuit; and a means for determining whether the voltage value or the current value detected by the means is within a predetermined range. Is configured to stop and notify the power supply when it is determined that is not within a predetermined range. 前記電力供給を開始する前に、前記車両側から電圧値を受付ける手段を更に備え、前記所定範囲は、該手段が受付けた電圧値に応じて定められるように構成してある請求項３又は４記載の非接触給電装置。   5. The apparatus according to claim 3, further comprising means for receiving a voltage value from the vehicle before starting the power supply, wherein the predetermined range is determined according to the voltage value received by the means. The non-contact electric power feeder of description. 車両に搭載されたコイルと、該コイルが受電した電力を整流してバッテリに充電する受電回路とを備え、前記コイルへ電磁誘導又は磁気共鳴により電力供給を受ける非接触受電装置であって、
前記電力供給が開始される前に、前記バッテリの端子電圧値を検出する手段と、該手段が検出した端子電圧値に応じて電圧又は電流の閾値を定める閾値手段と、前記電力供給を受けている際に、前記コイル及び受電回路内の所定位置の電圧値又は電流値を検出する手段と、該手段が検出した電圧値又は電流値、及び前記閾値手段が定めた閾値を外部へ送信する手段とを備えることを特徴とする非接触受電装置。 A non-contact power receiving device comprising a coil mounted on a vehicle and a power receiving circuit that rectifies the power received by the coil and charges the battery, and receives power supply to the coil by electromagnetic induction or magnetic resonance,
Means for detecting a terminal voltage value of the battery, threshold means for determining a voltage or current threshold according to the terminal voltage value detected by the means, and receiving the power supply before the power supply is started; Means for detecting a voltage value or a current value at a predetermined position in the coil and the power receiving circuit, and a means for transmitting the voltage value or current value detected by the means and the threshold value determined by the threshold means to the outside And a non-contact power receiving device. 車両に搭載された二次コイルと、該二次コイルが受電した電力を整流してバッテリに充電する受電回路と、車両を駐停車させる駐停車区域に配置された一次コイルと、該一次コイルに供給する電力を所定周波数に変換する給電回路とを備え、前記一次コイルから二次コイルへ電磁誘導又は磁気共鳴により電力供給を行う非接触給電システムの非接触給電方法であって、
前記二次コイル、受電回路、一次コイル及び給電回路内の所定位置の電圧値又は電流値を検出し、検出した電圧値又は電流値が、所定範囲にあるか否かを判定し、所定範囲にないと判定したときに、前記電力供給を停止し報知することを特徴とする非接触給電方法。 A secondary coil mounted on the vehicle; a power receiving circuit that rectifies the power received by the secondary coil and charges the battery; a primary coil disposed in a parking and stopping area where the vehicle is parked and parked; and A non-contact power feeding method for a non-contact power feeding system that includes a power feeding circuit that converts power to be supplied into a predetermined frequency, and performs power supply from the primary coil to the secondary coil by electromagnetic induction or magnetic resonance,
A voltage value or a current value at a predetermined position in the secondary coil, the power receiving circuit, the primary coil, and the power feeding circuit is detected, and it is determined whether or not the detected voltage value or current value is within a predetermined range. A non-contact power feeding method characterized by stopping and informing the power supply when it is determined that there is no.

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