WO2014054608A1 - Noncontact power supply device - Google Patents

Noncontact power supply device Download PDF

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Publication number
WO2014054608A1
WO2014054608A1 PCT/JP2013/076643 JP2013076643W WO2014054608A1 WO 2014054608 A1 WO2014054608 A1 WO 2014054608A1 JP 2013076643 W JP2013076643 W JP 2013076643W WO 2014054608 A1 WO2014054608 A1 WO 2014054608A1
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WIPO (PCT)
Prior art keywords
vehicle
power
power transmission
transmission coil
unit
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PCT/JP2013/076643
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French (fr)
Japanese (ja)
Inventor
成幸 吉田
正希 今野
肇 葛西
菊地　雅彦
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日産自動車株式会社
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Publication of WO2014054608A1 publication Critical patent/WO2014054608A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
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    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/37—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles using optical position determination, e.g. using cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
    • B60M7/003—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway for vehicles using stored power (e.g. charging stations)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/46—Accumulators structurally combined with charging apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

A noncontact power supply device is provided with: a power transmission coil (12) which transmits power in a noncontact manner by magnetically being coupled to a power reception coil (22) provided in a vehicle (200); a power transmission coil unit (102) which houses the power transmission coil (12); and one or more markers (M) provided to correspond to the power supply coil unit (102) on the side, on which the vehicle (200) enters when the vehicle (200) is parked, with respect to the power transmission coil unit (102).

Description

非接触給電装置Non-contact power feeding device
　本発明は、非接触給電装置に関するものである。 The present invention relates to a non-contact power feeding device.
　車両に設けられた受電コイルと、地上に設けられた送電コイルとにより非接触にて電気自動車などに搭載されたバッテリを充電する非接触給電装置が提案されている。非接触給電装置では、送電コイルと受電コイルとの相対位置を合わせることにより効率の良い充電を行うことができる。このため、車両後方を撮像するカメラを有し、このカメラにより撮像された画像に基づいて駐車時に送電コイルと受電コイルとの位置合わせを支援する駐車支援装置が提案されている（特許文献１参照）。 There has been proposed a non-contact power feeding device that charges a battery mounted on an electric vehicle or the like in a non-contact manner by a power receiving coil provided in the vehicle and a power transmitting coil provided on the ground. In the non-contact power supply device, efficient charging can be performed by matching the relative positions of the power transmission coil and the power reception coil. For this reason, there has been proposed a parking assist device that has a camera that captures the rear of the vehicle and assists the alignment of the power transmission coil and the power reception coil during parking based on an image captured by the camera (see Patent Document 1). ).
特開２０１１－１５５４９号公報JP 2011-15549 A
　しかし、駐車時においては、例えば車両の後方に送電コイルが存在するとは限らず、車両の角度によってはカメラに送電コイル（詳細には送電コイルを収納する筐体）が映らず駐車目標を確認することが困難となってしまう場合がある。また、車両には、車両周囲を撮像し、撮像画像を鳥瞰画像に変換したものを車内ディスプレイ上に表示するＡＶＭ（アラウンドビューモニタ）を備えるものが存在するが、ＡＶＭの表示範囲は車両周囲の近傍に限られる。このため、例えば車両後方のやや遠目となる位置に送電コイルがある場合に、運転者はＡＶＭを参照しながら送電コイルまで車両を移動させることができず、駐車目標を確認することが困難となってしまう。 However, at the time of parking, for example, the power transmission coil does not always exist behind the vehicle, and depending on the angle of the vehicle, the power transmission coil (specifically, the casing that houses the power transmission coil) does not appear on the camera and the parking target is confirmed. May be difficult. Some vehicles include an AVM (around view monitor) that captures an image of the surroundings of the vehicle and displays the image obtained by converting the captured image into a bird's-eye view image on the in-vehicle display. Limited to neighborhood. For this reason, for example, when there is a power transmission coil at a slightly distant position behind the vehicle, the driver cannot move the vehicle to the power transmission coil while referring to the AVM, and it is difficult to check the parking target. End up.
　本発明は、このような課題を解決するために成されたものであり、その目的は、駐車目標の確認を容易化することが可能な非接触給電装置を提供することにある。 This invention was made in order to solve such a subject, and the objective is to provide the non-contact electric power feeder which can make confirmation of a parking target easy.
　本発明の一態様に係わる非接触給電装置は、送電コイルを収納する送電コイルユニットよりも、車両を駐車する時に車両が進入してくる側において、給電コイルユニットと対応して設けられた１又は２以上のマーカを備えている。 The non-contact power feeding device according to one aspect of the present invention is provided with 1 or 2 provided corresponding to the power feeding coil unit on the side where the vehicle enters when the vehicle is parked, rather than the power feeding coil unit that houses the power feeding coil. Two or more markers are provided.
図１は、本実施形態に係わる非接触給電装置を含む非接触充電システムの概略構成を示すブロック図である。FIG. 1 is a block diagram illustrating a schematic configuration of a non-contact charging system including a non-contact power supply apparatus according to the present embodiment. 図２は、本実施形態に係わる非接触給電装置の設置状態を示す図である。FIG. 2 is a diagram illustrating an installation state of the non-contact power feeding apparatus according to the present embodiment. 図３は、ＡＶＭによる表示画像の一例を示す模式図である。FIG. 3 is a schematic diagram illustrating an example of a display image by AVM. 図４は、実施形態に係わる非接触給電装置の設置状態の第１変形例を示す図である。Drawing 4 is a figure showing the 1st modification of the installation state of the non-contact electric supply device concerning an embodiment. 図５は、実施形態に係わる非接触給電装置の設置状態の第２変形例を示す図である。FIG. 5 is a diagram illustrating a second modification of the installation state of the non-contact power feeding device according to the embodiment. 図６は、実施形態に係わる非接触給電装置が設置された駐車枠に車両を駐車する様子を説明する上面図である。FIG. 6 is a top view for explaining a state in which the vehicle is parked in the parking frame in which the non-contact power feeding device according to the embodiment is installed.
　以下、本発明の実施形態を図面を参照して説明する。先ず、図１を参照して、実施形態に係わる非接触給電装置を含む非接触充電システムの構成を説明する。図１に示すように、実施形態に係わる非接触充電システム１は、車両２００に搭載される車両側ユニットと、地上側ユニットである非接触給電装置１００とを備える。非接触充電システム１は、非接触給電装置１００から車両側ユニットへ非接触で電力を供給し、車両２００に設けられているバッテリ２８を充電するシステムである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, with reference to FIG. 1, the structure of the non-contact charge system containing the non-contact electric power feeder concerning embodiment is demonstrated. As shown in FIG. 1, the non-contact charging system 1 according to the embodiment includes a vehicle-side unit mounted on a vehicle 200 and a non-contact power supply apparatus 100 that is a ground-side unit. The contactless charging system 1 is a system that supplies power from the contactless power supply device 100 to the vehicle-side unit in a contactless manner and charges a battery 28 provided in the vehicle 200.
　非接触給電装置１００は、給電スタンド或いは駐車場などに設置される。非接触給電装置１００は、車両２００を所定の駐車位置に駐車した状態において、送電コイル１２から後述の受電コイル２２へ非接触給電により電力を供給する。非接触給電装置１００は、電力制御部１１と、送電コイル１２と、無線通信部１４と、制御部１５とを備えている。 The non-contact power supply apparatus 100 is installed in a power supply stand or a parking lot. The non-contact power supply apparatus 100 supplies power from the power transmission coil 12 to the power receiving coil 22 described later by non-contact power supply in a state where the vehicle 200 is parked at a predetermined parking position. The non-contact power supply apparatus 100 includes a power control unit 11, a power transmission coil 12, a wireless communication unit 14, and a control unit 15.
　電力制御部１１は、交流電源３００から送電される交流電力を高周波の交流電力に変換し、送電コイル１２に送電するための回路である。電力制御部１１は、整流部１１１と、ＰＦＣ（Power Factor Correction）回路１１２と、インバータ１１３と、センサ１１４とを備えている。 The power control unit 11 is a circuit for converting AC power transmitted from the AC power source 300 into high-frequency AC power and transmitting the AC power to the power transmission coil 12. The power control unit 11 includes a rectification unit 111, a PFC (Power Factor Correction) circuit 112, an inverter 113, and a sensor 114.
　整流部１１１は、交流電源３００に電気的に接続され、交流電源３００からの出力交流電力を整流する回路である。ＰＦＣ回路１１２は、整流部１１１からの出力波形を整流することで力率を改善するための回路であり、整流部１１１とインバータ１１３との間に接続されている。インバータ１１３は、平滑コンデンサやＩＧＢＴなどのスイッチング素子を有したＰＷＭ制御回路などを含む電力変換回路である。インバータ１１３は、制御部１５によるスイッチング制御信号に基づいて、直流電力を高周波の交流電力に変換し、送電コイル１２に供給する。センサ１１４は、ＰＦＣ回路１１２とインバータ１１３との間に接続され、ＰＦＣ回路１１２とインバータ１１３との間に流れる電流や電圧を検出する。 The rectifying unit 111 is a circuit that is electrically connected to the AC power supply 300 and rectifies the output AC power from the AC power supply 300. The PFC circuit 112 is a circuit for improving the power factor by rectifying the output waveform from the rectifying unit 111, and is connected between the rectifying unit 111 and the inverter 113. The inverter 113 is a power conversion circuit including a PWM control circuit having a smoothing capacitor and a switching element such as an IGBT. The inverter 113 converts the DC power into high-frequency AC power based on the switching control signal from the control unit 15 and supplies it to the power transmission coil 12. The sensor 114 is connected between the PFC circuit 112 and the inverter 113, and detects a current and a voltage flowing between the PFC circuit 112 and the inverter 113.
　送電コイル１２は、車両２００に搭載された受電コイル２２に対して非接触で電力を供給するためのコイルであって、駐車スペース内の路面と平行な方向に円形形状に巻かれている。送電コイル１２は、駐車スペース内に設けられている。具体的に、送電コイル１２は、車両２００を駐車スペース内の適切な駐車位置に駐車した時に、受電コイル２２と距離を保った状態で受電コイル２２の直下に位置するように、設けられている。 The power transmission coil 12 is a coil for supplying power in a non-contact manner to the power reception coil 22 mounted on the vehicle 200, and is wound in a circular shape in a direction parallel to the road surface in the parking space. The power transmission coil 12 is provided in the parking space. Specifically, the power transmission coil 12 is provided so as to be positioned directly below the power reception coil 22 while keeping a distance from the power reception coil 22 when the vehicle 200 is parked at an appropriate parking position in the parking space. .
　無線通信部１４は、車両２００に搭載された無線通信部２４と双方向に通信を行うものである。無線通信部１４と無線通信部２４との間の通信周波数は、インテリジェントキー（登録商標）などの車両周辺機器への干渉を考慮して、車両周辺機器で使用される周波数よりも高い周波数が設定されている。無線通信部１４及び無線通信部２４との間の通信には、例えば各種の無線ＬＡＮ方式などの遠距離に適した通信方式が用いられている。 The wireless communication unit 14 performs bidirectional communication with the wireless communication unit 24 mounted on the vehicle 200. The communication frequency between the wireless communication unit 14 and the wireless communication unit 24 is set to a frequency higher than the frequency used in the vehicle peripheral device in consideration of interference with the vehicle peripheral device such as an intelligent key (registered trademark). Has been. For communication between the wireless communication unit 14 and the wireless communication unit 24, for example, a communication method suitable for a long distance such as various wireless LAN methods is used.
　制御部１５は、非接触給電装置１００全体を制御する。具体的に、制御部１５は、電力制御部１１、及び無線通信部１４を制御する。制御部１５は、無線通信部１４と無線通信部２４との間の通信により、非接触給電装置１００からの電力供給を開始する旨の制御信号を車両２００側に送信したり、車両２００側から非接触給電装置１００から受電したい旨のリクエスト信号を受信したりする。制御部１５は、センサ１１４の検出電流に基づいて、インバータ１１３のスイッチング制御を行い、送電コイル１２から送電される電力を制御する。 The control part 15 controls the non-contact electric power feeder 100 whole. Specifically, the control unit 15 controls the power control unit 11 and the wireless communication unit 14. The control unit 15 transmits a control signal for starting power supply from the non-contact power supply device 100 to the vehicle 200 side by communication between the wireless communication unit 14 and the wireless communication unit 24, or from the vehicle 200 side. A request signal for receiving power from the non-contact power supply apparatus 100 is received. The control unit 15 performs switching control of the inverter 113 based on the detection current of the sensor 114 and controls electric power transmitted from the power transmission coil 12.
　車両２００は、車両側ユニットとして、受電コイル２２と、無線通信部２４と、制御部２５と、整流部２６と、リレー部２７と、バッテリ２８と、インバータ２９と、モータ３０とを備えている。受電コイル２２は、非接触給電装置１００の送電コイル１２から非接触にて受電するコイルである。受電コイル２２は、車両２００の底面部、特に後方の車輪の間に設けられている。受電コイル２２は、送電コイル１２と同様に、駐車スペース内の路面と平行な方向に円形形状に巻かれている。受電コイル２２は、車両２００を駐車スペース内の適切な駐車位置に駐車した時に、送電コイル１２と距離を保った状態で送電コイル１２の直上に位置するように、設けられている。 The vehicle 200 includes a power receiving coil 22, a wireless communication unit 24, a control unit 25, a rectifying unit 26, a relay unit 27, a battery 28, an inverter 29, and a motor 30 as a vehicle side unit. . The power receiving coil 22 is a coil that receives power in a non-contact manner from the power transmission coil 12 of the non-contact power feeding apparatus 100. The power receiving coil 22 is provided between the bottom surface of the vehicle 200, particularly between the rear wheels. Similarly to the power transmission coil 12, the power reception coil 22 is wound in a circular shape in a direction parallel to the road surface in the parking space. The power receiving coil 22 is provided so as to be positioned immediately above the power transmission coil 12 while maintaining a distance from the power transmission coil 12 when the vehicle 200 is parked at an appropriate parking position in the parking space.
　無線通信部２４は、非接触給電装置１００側に設けられた無線通信部１４と双方向に通信を行う。整流部２６は、受電コイル２２に接続され、受電コイル２２で受電された交流電力を直流に整流する整流回路により構成されている。リレー部２７は、制御部２５の制御によりオン及びオフが切り替わるリレースイッチを備え、当該リレースイッチをオフすることにより、バッテリ２８を含む強電系と、充電の回路部となる受電コイル２２及び整流部２６とを切り離す機能を有している。 The wireless communication unit 24 performs bidirectional communication with the wireless communication unit 14 provided on the non-contact power supply apparatus 100 side. The rectifying unit 26 is connected to the power receiving coil 22 and is configured by a rectifying circuit that rectifies AC power received by the power receiving coil 22 into direct current. The relay unit 27 includes a relay switch that is switched on and off under the control of the control unit 25. By turning off the relay switch, the high-power system including the battery 28, the power receiving coil 22 that serves as a charging circuit unit, and the rectification unit 26.
　バッテリ２８は、車両２００の電力源となるものであり、複数の二次電池を接続することで構成されている。インバータ２９は、ＩＧＢＴ等のスイッチング素子を有したＰＷＭ制御回路等の制御回路であって、スイッチング制御信号に基づいて、バッテリ２８から出力される直流電力を交流電力に変換し、モータ３０に供給する。モータ３０は、例えば三相の交流電動機により構成され、車両２００を駆動させるための駆動源である。 The battery 28 serves as a power source for the vehicle 200, and is configured by connecting a plurality of secondary batteries. The inverter 29 is a control circuit such as a PWM control circuit having a switching element such as an IGBT, converts DC power output from the battery 28 into AC power based on the switching control signal, and supplies the AC power to the motor 30. . The motor 30 is composed of, for example, a three-phase AC motor, and is a drive source for driving the vehicle 200.
　制御部２５は、バッテリ２８の充電、及び無線通信部２４を制御する。制御部２５は、無線通信部２４及び無線通信部１４を介して、充電を開始する旨の信号を非接触給電装置１００の制御部１５に送信する。また、制御部２５は、図示しない、車両２００全体を制御するコントローラとＣＡＮ通信網で接続されている。当該コントローラは、インバータ２９のスイッチング制御や、バッテリ２２の充電状態（ＳＯＣ）を管理する。さらに、制御部２５は、バッテリ２２のＳＯＣに基づいて満充電に達したか否かを判断し、満充電に達した場合、充電を終了する旨の信号を、非接触給電装置１００の制御部１５に送信する。 The control unit 25 controls the charging of the battery 28 and the wireless communication unit 24. The control unit 25 transmits a signal for starting charging to the control unit 15 of the non-contact power supply apparatus 100 via the wireless communication unit 24 and the wireless communication unit 14. Moreover, the control part 25 is connected with the controller which controls the vehicle 200 whole which is not shown in figure by a CAN communication network. The controller manages the switching control of the inverter 29 and the state of charge (SOC) of the battery 22. Further, the control unit 25 determines whether or not the full charge has been reached based on the SOC of the battery 22, and when the full charge has been reached, the control unit 25 outputs a signal indicating that the charge is to be terminated. 15 to send.
　非接触充電システム１では、送電コイル１２と受電コイル２２との間で、電磁誘導作用により非接触状態で高周波電力の送電及び受電を行う。言い換えると、送電コイル１２に電圧が加わると、送電コイル１２と受電コイル２２との間には磁気的な結合が生じ、送電コイル１２から受電コイル２２へ電力が供給される。 In the non-contact charging system 1, high-frequency power is transmitted and received between the power transmission coil 12 and the power receiving coil 22 in a non-contact state by electromagnetic induction. In other words, when a voltage is applied to the power transmission coil 12, magnetic coupling occurs between the power transmission coil 12 and the power reception coil 22, and power is supplied from the power transmission coil 12 to the power reception coil 22.
　さらに、本実施形態において車両２００には、カメラ３１と、表示部３２とが搭載されている。カメラ３１は、車両２００の後方を撮像する。制御部２５は、カメラ３１により撮像された画像を処理し、その画像情報を表示部３２に送信する。表示部３２は、運転者が視認可能な位置に設けられたディスプレイであって、制御部２５からの画像情報に基づいて、車両後方の画像を運転者に提供する。 Furthermore, in this embodiment, the camera 200 and the display unit 32 are mounted on the vehicle 200. The camera 31 images the rear of the vehicle 200. The control unit 25 processes the image captured by the camera 31 and transmits the image information to the display unit 32. The display unit 32 is a display provided at a position where the driver can visually recognize, and provides the driver with an image behind the vehicle based on image information from the control unit 25.
　加えて、本実施形態に係わる非接触給電装置１００は、以下の構成を備えている。図２は、本実施形態に係わる非接触給電装置１００の配置状態を示す。図２に示すように、非接触給電装置１００は、給電装置本体１０１と、送電コイルユニット１０２とから構成されている。給電装置本体１０１は、図１に示した電力制御部１１、無線通信部１４及び制御部１５等を収納する。送電コイルユニット１０２は、少なくとも図１に示した送電コイル１２を収納する筐体である。このような構成であるため、バッテリ２８を充電する際に運転者は送電コイルユニット１０２上に受電コイル２２が位置するように、車両２００を駐車スペース内に駐車させる必要がある。 In addition, the non-contact power feeding apparatus 100 according to the present embodiment has the following configuration. FIG. 2 shows an arrangement state of the non-contact power feeding apparatus 100 according to the present embodiment. As shown in FIG. 2, the non-contact power feeding device 100 includes a power feeding device main body 101 and a power transmission coil unit 102. The power supply apparatus main body 101 houses the power control unit 11, the wireless communication unit 14, the control unit 15, and the like illustrated in FIG. The power transmission coil unit 102 is a housing that houses at least the power transmission coil 12 illustrated in FIG. 1. Because of this configuration, when charging the battery 28, the driver needs to park the vehicle 200 in the parking space so that the power receiving coil 22 is positioned on the power transmitting coil unit 102.
　次に、本実施形態に係わる非接触充電システム１による給電方法の一例を説明する。まず、車両２００の制御部２５は、車両２００が非接触給電装置１００に接近したか否かを、例えばＧＰＳ情報及び地図情報等に基づいて判断する。 Next, an example of a power feeding method by the non-contact charging system 1 according to the present embodiment will be described. First, the control unit 25 of the vehicle 200 determines whether the vehicle 200 has approached the non-contact power supply apparatus 100 based on, for example, GPS information and map information.
　車両２００が非接触給電装置１００に接近した場合、車両２００の制御部２５は、無線通信部２４を起動させて、非接触給電装置１００の無線通信部１４と通信可能な状態にする。無線通信部１４と無線通信部２４との間で通信可能な状態になると、車両２００の制御部２５は、リンクを確率するための信号を、無線通信部２４から無線通信部１４に送信する。そして、非接触給電装置１００の制御部１５は、当該信号を受信した旨の信号を、無線通信部１４から無線通信部２４に送り返す。これにより、無線通信部１４と無線通信部２４との間でリンクが確立する。 When the vehicle 200 approaches the non-contact power supply device 100, the control unit 25 of the vehicle 200 activates the wireless communication unit 24 so that it can communicate with the wireless communication unit 14 of the non-contact power supply device 100. When communication between the wireless communication unit 14 and the wireless communication unit 24 is possible, the control unit 25 of the vehicle 200 transmits a signal for establishing a link from the wireless communication unit 24 to the wireless communication unit 14. And the control part 15 of the non-contact electric power feeder 100 sends back the signal to the effect that the said signal was received from the wireless communication part 14 to the wireless communication part 24. Thereby, a link is established between the wireless communication unit 14 and the wireless communication unit 24.
　また、車両２００の制御部２５は、無線通信部１４と無線通信部２４との間の通信で、車両２００のＩＤを非接触給電装置１００の制御部１５に送信する。非接触給電装置１００の制御部１５は、車両２００側から送信されたＩＤが、予め登録されているＩＤと合致するか否かを判定することで、ＩＤ認証を行う。なお、本実施形態に係わる非接触充電システム１は、予め給電可能な車両２００のＩＤが非接触給電装置１００に登録されている。このため、上記のＩＤ認証により、登録ＩＤと合致した車両２００のみが給電することができる。しかし、非接触充電システム１は、これに限らず、ＩＤ認証なしであってもよい。 Further, the control unit 25 of the vehicle 200 transmits the ID of the vehicle 200 to the control unit 15 of the non-contact power feeding apparatus 100 through communication between the wireless communication unit 14 and the wireless communication unit 24. The control unit 15 of the contactless power supply device 100 performs ID authentication by determining whether or not the ID transmitted from the vehicle 200 side matches the ID registered in advance. In the contactless charging system 1 according to the present embodiment, the ID of the vehicle 200 that can be supplied with power is registered in the contactless power supply apparatus 100 in advance. For this reason, only the vehicle 200 that matches the registered ID can be powered by the above ID authentication. However, the non-contact charging system 1 is not limited to this, and may be without ID authentication.
　また、無線通信の確立及びＩＤ認証の間において、カメラ３１からの画像が表示部３２に提供される。このため、運転者は、画像を参照しつつ駐車を行うことができる。そして、車両２００が適切に駐車され、送電コイルユニット１０２の直上に受電コイル２２が位置すると、制御部１５は、インバータ１１３を制御して高周波電力を送電コイル１２に供給する。これにより、受電コイル２２を介して充電が行われる。また、充電中において車両２００の制御部２５は、バッテリ２８が満充電に達したか否かを判断する。満充電に達したと判断した場合、車両２００の制御部２５は満充電に達した旨の信号を非接触給電装置１００に送信し、制御部１５は当該信号に基づいて給電を終了させる。一方、満充電に達していないと判断した場合には、給電が継続されることとなる。 In addition, an image from the camera 31 is provided to the display unit 32 during establishment of wireless communication and ID authentication. For this reason, the driver can park while referring to the image. When the vehicle 200 is properly parked and the power receiving coil 22 is positioned immediately above the power transmission coil unit 102, the control unit 15 controls the inverter 113 to supply high frequency power to the power transmission coil 12. Thereby, charging is performed via the power receiving coil 22. Further, during charging, control unit 25 of vehicle 200 determines whether battery 28 has reached full charge. When it is determined that full charge has been reached, the control unit 25 of the vehicle 200 transmits a signal indicating that full charge has been reached to the non-contact power supply apparatus 100, and the control unit 15 ends power supply based on the signal. On the other hand, when it is determined that the battery is not fully charged, power supply is continued.
　しかし、例えば、図２に示すように、車両２００の側方に駐車枠Ｓが存在する場合には、カメラ３１により送電コイルユニット１０２を撮像できず、特許文献１に示したような駐車支援はもとより、運転者は画像から送電コイルユニット１０２の確認も行うことができない。また、車両２００の前方や側方にもカメラ３１を備え、アラウンドビューを表示する車両２００であったとしても、ＡＶＭの表示範囲は車両周囲の近傍に限られることから、表示部３２上に送電コイルユニット１０２を表示することができない。このような場合、運転者は駐車目標を確認することが困難となってしまう。 However, for example, as shown in FIG. 2, when the parking frame S is present on the side of the vehicle 200, the power transmission coil unit 102 cannot be captured by the camera 31, and parking assistance as shown in Patent Document 1 is not possible. Of course, the driver cannot confirm the power transmission coil unit 102 from the image. In addition, even if the vehicle 200 is provided with a camera 31 in front and on the side of the vehicle 200 and displays an around view, the AVM display range is limited to the vicinity of the vehicle periphery. The coil unit 102 cannot be displayed. In such a case, it becomes difficult for the driver to confirm the parking target.
　そこで、本実施形態において非接触給電装置１００はマーカＭを備えている。図２に示すようにマーカＭは、送電コイルユニット１０２よりも、車両を駐車する時に車両が進入してくる側において、当該送電コイルユニット１０２と対応して設けられている。マーカＭは、例えばＬＥＤなどの発光体、路面に描かれたマーク、及び立体的な構造物などにより構成されている。なお、立体的な構造物は、車両２００の下に潜り込める高さであることは言うまでもない。また、マーカＭは、「送電コイルユニット１０２と対応して設けられ」ているが、これは、マーカＭが送電コイルユニット１０２の存在を示すために設けられていることを意味している。 Therefore, in this embodiment, the non-contact power feeding apparatus 100 includes a marker M. As shown in FIG. 2, the marker M is provided in correspondence with the power transmission coil unit 102 on the side where the vehicle enters when the vehicle is parked, rather than the power transmission coil unit 102. The marker M is composed of, for example, a light emitter such as an LED, a mark drawn on a road surface, a three-dimensional structure, and the like. Needless to say, the three-dimensional structure has a height that can be buried under the vehicle 200. Further, the marker M is “provided corresponding to the power transmission coil unit 102”, which means that the marker M is provided to indicate the presence of the power transmission coil unit 102.
　このように本実施形態ではマーカＭを駐車時における車両進入側に備えているため、運転者は、例えば送電コイルユニット１０２が画像内に存在しない場合であっても、送電コイルユニット１０２への目印となるマーカＭを参照することで、送電コイルユニット１０２に向けて車両２００を移動させることができる。 Thus, in this embodiment, since the marker M is provided on the vehicle entry side during parking, the driver can mark the power transmission coil unit 102 even when the power transmission coil unit 102 is not present in the image, for example. By referring to the marker M that becomes, the vehicle 200 can be moved toward the power transmission coil unit 102.
　図３は、ＡＶＭにより表示された画像を示す。例えば車両２００がＡＶＭを備える場合、図３に示すように、表示領域は車両２００の周囲近傍に限られる。このため、画像内には送電コイルユニット１０２が存在しなくなってしまう。しかし、本実施形態に係わる非接触給電装置１００はマーカＭを備えるため、図３に示すように、マーカＭが画像内に存在することとなり、駐車目標の確認が容易化されることとなる。 FIG. 3 shows an image displayed by AVM. For example, when the vehicle 200 includes an AVM, the display area is limited to the vicinity of the vehicle 200 as shown in FIG. For this reason, the power transmission coil unit 102 does not exist in the image. However, since the non-contact power feeding apparatus 100 according to the present embodiment includes the marker M, the marker M is present in the image as shown in FIG. 3, and the parking target can be easily confirmed.
　なお、上記では、カメラ３１を備え、カメラ３１により撮像された画像を表示部３２から運転者へ提供する車両２００について説明している。これに限らず、カメラ３１を備えない車両についても駐車目標の確認を容易化することができる。例えば、マーカＭがＬＥＤなどの発光体にて構成されている場合、夜間や降雨時には送電コイルユニット１０２自体が見え難くなり、駐車目標の確認が困難となってしまう。本実施形態ではマーカＭの発光により、確認の容易化を図ることができる。 In the above description, the vehicle 200 that includes the camera 31 and provides an image captured by the camera 31 from the display unit 32 to the driver is described. The parking target can be easily confirmed not only for this but also for a vehicle that does not include the camera 31. For example, when the marker M is composed of a light emitter such as an LED, the power transmission coil unit 102 itself is difficult to see at night or during rain, making it difficult to confirm the parking target. In this embodiment, the confirmation can be facilitated by the light emission of the marker M.
　さらに、駐車場では停車中の他車両が多数存在する場合がある。このような場合には、視界が良好なときであっても、他車両によって送電コイルユニット１０２が隠れてしまい、駐車目標の確認が困難となってしまう。しかし、本実施形態では送電コイルユニット１０２よりも駐車時における車両進入側にマーカＭを備えている。このため、他車両によって送電コイルユニット１０２が隠れてしまっても、マーカＭが確認できる場合がある。このため、駐車目標の確認について容易化を図ることができる。 In addition, there may be many other vehicles that are parked in the parking lot. In such a case, even when the visibility is good, the power transmission coil unit 102 is hidden by another vehicle, making it difficult to check the parking target. However, in this embodiment, the marker M is provided on the vehicle entry side during parking than the power transmission coil unit 102. For this reason, even if the power transmission coil unit 102 is hidden by another vehicle, the marker M may be confirmed. For this reason, it is possible to facilitate the confirmation of the parking target.
　さらに、マーカＭは、図２に示すように、送電コイルユニット１０２よりも、車両を駐車するための駐車枠Ｓの長手方向前方側に離れた位置に設けられている。このため、マーカＭを参照した運転者は、マーカＭの位置から駐車枠Ｓの後方に車両２００を移動させることで送電コイルユニット１０２に向けて車両２００を移動させることでき、駐車目標の確認について一層容易化を図ることができる。 Further, as shown in FIG. 2, the marker M is provided at a position farther forward than the power transmission coil unit 102 in the longitudinal direction of the parking frame S for parking the vehicle. For this reason, the driver who referred to the marker M can move the vehicle 200 toward the power transmission coil unit 102 by moving the vehicle 200 to the rear of the parking frame S from the position of the marker M, and confirming the parking target. Further simplification can be achieved.
　図４は、本実施形態に係わる非接触給電装置１００の設置状態の第１変形例を示す図であり、図５は、本実施形態に係わる非接触給電装置１００の設置状態の第２変形例を示す図である。図４に示すように、２以上のマーカＭが、送電コイルユニット１０２から駐車枠Ｓの長手方向前方側に沿って連続して設けられていてもよい。さらには、図５に示すように、マーカＭは、長尺形状とされ、送電コイルユニット１０２から駐車枠Ｓの長手方向前方側に沿って連続的に設けられていてもよい。換言すれば、送電コイルユニット１０２から駐車枠Ｓの長手方向に伸びる線状の形状を有していてもよい。 FIG. 4 is a diagram illustrating a first modification of the installation state of the contactless power supply apparatus 100 according to the present embodiment, and FIG. 5 is a second modification of the installation state of the contactless power supply apparatus 100 according to the present embodiment. FIG. As shown in FIG. 4, two or more markers M may be provided continuously from the power transmission coil unit 102 along the front side in the longitudinal direction of the parking frame S. Furthermore, as shown in FIG. 5, the marker M may have a long shape, and may be continuously provided from the power transmission coil unit 102 along the front side in the longitudinal direction of the parking frame S. In other words, it may have a linear shape extending from the power transmission coil unit 102 in the longitudinal direction of the parking frame S.
　このような構成とすることにより、運転者は連続するマーカＭに沿って車両２００を移動させることで、駐車枠Ｓ等を参照しなくても送電コイルユニット１０２に向けて車両２００を移動させることができ、駐車目標の確認について、より一層容易化を図ることができる。 With this configuration, the driver moves the vehicle 200 along the continuous marker M, thereby moving the vehicle 200 toward the power transmission coil unit 102 without referring to the parking frame S or the like. Thus, the confirmation of the parking target can be further facilitated.
　次に、本実施形態に係わる非接触給電装置１００を用いた車両２００の駐車の概要について説明する。図６は、車両２００の駐車の概要を説明する上面図である。 Next, an outline of parking of the vehicle 200 using the non-contact power feeding apparatus 100 according to this embodiment will be described. FIG. 6 is a top view for explaining an outline of parking of the vehicle 200.
　先ず、図６（ａ）に示すように、車両２００が駐車場に進入したとする。このとき、車両２００の運転者からは、他車両４００が影となり送電コイルユニット１０２を確認することができないが、マーカＭを確認できる。このため、駐車目標の確認について容易化を図ることができる。 First, it is assumed that the vehicle 200 enters the parking lot as shown in FIG. At this time, from the driver of the vehicle 200, the other vehicle 400 becomes a shadow and the power transmission coil unit 102 cannot be confirmed, but the marker M can be confirmed. For this reason, it is possible to facilitate the confirmation of the parking target.
　更に、運転者は車両２００を駐車枠Ｓ内に駐車しようとして、やや左旋回しつつ前方に進行したとする。このとき、図６（ｂ）に示すように、カメラ３１の視野角内にマーカＭは存在するが、送電コイルユニット１０２が存在しない場合もある。このような場合、本実施形態では表示部３２に表示された画像からマーカＭを確認できるため、駐車目標の確認について容易化を図ることができる。 Furthermore, it is assumed that the driver tries to park the vehicle 200 in the parking frame S and proceeds forward while making a slight left turn. At this time, as shown in FIG. 6B, the marker M exists within the viewing angle of the camera 31, but the power transmission coil unit 102 may not exist. In such a case, in this embodiment, since the marker M can be confirmed from the image displayed on the display unit 32, the parking target can be easily confirmed.
　その後、運転者は、図６（ｃ）に示すように車両２００を後退させて、車両２００を適切な位置に駐車しようとする。このとき、図６（ｃ）の破線に示すように、駐車枠Ｓの長手方向に２以上のマーカＭが連続していれば（すなわち、図４及び図５に示す例のようにマーカＭが構成されていれば）、連続する方向に送電コイルユニット１０２が存在することを運転者へ伝えることができる。駐車目標の確認についてより一層容易化を図ることができる。 After that, the driver tries to park the vehicle 200 at an appropriate position by moving the vehicle 200 backward as shown in FIG. At this time, as shown by the broken line in FIG. 6C, if two or more markers M are continuous in the longitudinal direction of the parking frame S (that is, the markers M are not as shown in the examples shown in FIGS. 4 and 5). If configured, the driver can be informed that the power transmission coil unit 102 exists in a continuous direction. The confirmation of the parking target can be further facilitated.
　なお、図６では、車両後方にカメラ３１を備える例を説明したが、ＡＶＭを備える車両であっても、図３及び図６に示すように、駐車目標の確認について容易化を図ることができることは言うまでもない。 In addition, although the example provided with the camera 31 in the vehicle rear was demonstrated in FIG. 6, even if it is a vehicle provided with AVM, as shown in FIG.3 and FIG.6, it can attain simplification about the confirmation of a parking target. Needless to say.
　このようにして、本実施形態に係わる非接触給電装置１００及び方法によれば、送電コイルユニット１０２よりも、駐車時における車両進入側において送電コイルユニット１０２と対応してマーカＭが設けられている。このため、例えば送電コイルユニット１０２が画像内に存在しない場合であっても、運転者は、送電コイルユニット１０２への目印となるマーカＭを参照することができる。よって、運転者は、送電コイルユニット１０２の存在を知ることができるため、駐車目標の確認について容易化を図ることができる。 Thus, according to the non-contact power feeding apparatus 100 and the method according to the present embodiment, the marker M is provided corresponding to the power transmission coil unit 102 on the vehicle approach side at the time of parking than the power transmission coil unit 102. . For this reason, for example, even when the power transmission coil unit 102 is not present in the image, the driver can refer to the marker M that serves as a mark for the power transmission coil unit 102. Therefore, since the driver can know the presence of the power transmission coil unit 102, it is possible to facilitate the confirmation of the parking target.
　また、マーカＭは、送電コイルユニット１０２から駐車枠Ｓの長手方向前方側に離れた位置に設けられているため、マーカＭを参照した運転者はマーカＭの位置から駐車枠Ｓの後方に送電コイルユニット１０２が存在することを知ることができる。従って、駐車目標の確認について一層容易化を図ることができる。 Further, since the marker M is provided at a position away from the power transmission coil unit 102 to the front side in the longitudinal direction of the parking frame S, the driver who refers to the marker M transmits power from the position of the marker M to the rear of the parking frame S. It can be known that the coil unit 102 exists. Therefore, it is possible to further facilitate the confirmation of the parking target.
　また、２以上のマーカＭが、送電コイルユニット１０２から駐車枠Ｓの長手方向に沿って連続して設けられているため、運転者はマーカＭが連続する方向に、送電コイルユニット１０２が存在することを知ることができる。従って、駐車目標の確認について、より一層容易化を図ることができる。また、連続するマーカＭに沿って車両２００を移動させることで、駐車枠Ｓ等を参照しなくても送電コイルユニット１０２に向けて車両を移動させることもできる。 Since two or more markers M are continuously provided from the power transmission coil unit 102 along the longitudinal direction of the parking frame S, the driver has the power transmission coil unit 102 in the direction in which the markers M are continuous. I can know that. Therefore, it is possible to further facilitate the confirmation of the parking target. Moreover, by moving the vehicle 200 along the continuous marker M, the vehicle can be moved toward the power transmission coil unit 102 without referring to the parking frame S or the like.
　以上、実施例に沿って本発明の内容を説明したが、本発明はこれらの記載に限定されるものではなく、種々の変形及び改良が可能であることは、当業者には自明である。例えば、本実施形態においては、マーカＭは肉眼で視認可能なものにより構成されているが、これに限らず、肉眼では視認不可であるが、表示部３２に表示された画像で視認可能なものであってもよい。 As mentioned above, although the content of the present invention has been described according to the embodiments, the present invention is not limited to these descriptions, and it is obvious to those skilled in the art that various modifications and improvements are possible. For example, in the present embodiment, the marker M is configured to be visible with the naked eye. However, the marker M is not limited to this, and is not visible with the naked eye, but is visible with the image displayed on the display unit 32. It may be.
　特願２０１２－２２０８７４号（出願日：２０１２年１０月３日）の全内容は、ここに援用される。 The entire contents of Japanese Patent Application No. 2012-220874 (application date: October 3, 2012) are incorporated herein by reference.
　本発明の実施形態に係わる非接触給電装置によれば、例えば送電コイルユニット１０２が画像内に存在しない場合であっても、運転者は、送電コイルユニット１０２への目印となるマーカＭを参照することで、送電コイルユニット１０２の存在を知ることができる。従って、駐車目標の確認を容易化することができる。よって、本発明の実施形態に係わる非接触給電装置は産業上利用可能性を有する。 According to the non-contact power feeding device according to the embodiment of the present invention, for example, even when the power transmission coil unit 102 is not present in the image, the driver refers to the marker M that serves as a mark for the power transmission coil unit 102. Thus, the existence of the power transmission coil unit 102 can be known. Therefore, confirmation of the parking target can be facilitated. Therefore, the non-contact power feeding apparatus according to the embodiment of the present invention has industrial applicability.
　１００　非接触給電装置
　１０２　送電コイルユニット
　１２　送電コイル
　２００　車両
　２２　受電コイル
　３１　カメラ
　３２　表示部
　Ｍ　マーカ
　Ｓ　駐車枠 DESCRIPTION OF SYMBOLS 100 Non-contact electric power feeder 102 Power transmission coil unit 12 Power transmission coil 200 Vehicle 22 Power reception coil 31 Camera 32 Display part M Marker S Parking frame

Claims (4)

  1. 　地上に設けられた非接触給電装置であって、
    　車両に設けられた受電コイルに対して磁気的に結合することにより非接触で送電を行う送電コイルと、
    　前記送電コイルを収納する送電コイルユニットと、
    　前記送電コイルユニットよりも、車両を駐車する時に車両が進入してくる側において、前記給電コイルユニットと対応して設けられた１又は２以上のマーカと、
    　を備えることを特徴とする非接触給電装置。     A non-contact power feeding device provided on the ground,
    A power transmission coil that performs non-contact power transmission by magnetically coupling to a power reception coil provided in a vehicle;
    A power transmission coil unit that houses the power transmission coil;
    More than the power transmission coil unit, on the side where the vehicle enters when parking the vehicle, one or more markers provided corresponding to the power supply coil unit,
    A non-contact power feeding device comprising:
  2. 　前記マーカは、前記送電コイルユニットよりも、車両を駐車するための駐車枠の長手方向前方側に離れた位置に設けられている
    　ことを特徴とする請求項１に記載の非接触給電装置。     The contactless power supply device according to claim 1, wherein the marker is provided at a position farther forward in the longitudinal direction of a parking frame for parking the vehicle than the power transmission coil unit.
  3. 　前記２以上のマーカが、前記送電コイルユニットから、前記駐車枠の長手方向に沿って連続して設けられている
    　ことを特徴とする請求項２に記載の非接触給電装置。     The non-contact power feeding device according to claim 2, wherein the two or more markers are continuously provided from the power transmission coil unit along a longitudinal direction of the parking frame.
  4. 　前記マーカは、前記送電コイルユニットから前記駐車枠の長手方向に伸びる線状の形状を有している
    　ことを特徴とする請求項１又は２に記載の非接触給電装置。     The contactless power supply device according to claim 1, wherein the marker has a linear shape extending from the power transmission coil unit in a longitudinal direction of the parking frame.
PCT/JP2013/076643 2012-10-03 2013-10-01 Noncontact power supply device WO2014054608A1 (en)

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