JP2005210843A - Power supplying system, vehicle power supply and roadside power supply - Google Patents

Power supplying system, vehicle power supply and roadside power supply Download PDF

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Publication number
JP2005210843A
JP2005210843A JP2004015660A JP2004015660A JP2005210843A JP 2005210843 A JP2005210843 A JP 2005210843A JP 2004015660 A JP2004015660 A JP 2004015660A JP 2004015660 A JP2004015660 A JP 2004015660A JP 2005210843 A JP2005210843 A JP 2005210843A
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Prior art keywords
power
vehicle
power supply
transmitting
receiving
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JP2004015660A
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Japanese (ja)
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Kenji Nishikawa
賢司 西川
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Toyota Motor Corp
トヨタ自動車株式会社
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    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/18Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells
    • B60L11/1809Charging electric vehicles
    • B60L11/1824Details of charging stations, e.g. vehicle recognition or billing
    • B60L11/1838Methods for the transfer of electrical energy or data between charging station and vehicle
    • B60L11/1842Energy stored in the vehicle is provided to the network, i.e. vehicle to grid (V2G) arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/02Electric propulsion with power supplied within the vehicle using engine-driven generators
    • B60L11/14Electric propulsion with power supplied within the vehicle using engine-driven generators with provision for direct mechanical propulsion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
    • B60L11/00Electric propulsion with power supplied within the vehicle
    • B60L11/18Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells
    • B60L11/1803Electric propulsion with power supplied within the vehicle using power supply from primary cells, secondary cells, or fuel cells for vehicles propelled by ac-motors
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L11/00Electric propulsion with power supplied within the vehicle
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    • B60L11/182Charging electric vehicles by inductive energy transfer
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L11/00Electric propulsion with power supplied within the vehicle
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    • B60L11/1837Details of charging stations, e.g. vehicle recognition or billing by charging in short intervals along the itinerary, e.g. during short stops
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    • B60L15/2009Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
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    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L2240/00Control parameters of input or output; Target parameters
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    • B60L2240/423Torque
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L2240/00Control parameters of input or output; Target parameters
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    • Y02E60/72Systems characterised by the monitored, controlled or operated power network elements or equipments
    • Y02E60/721Systems characterised by the monitored, controlled or operated power network elements or equipments the elements or equipments being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
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    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/163Information or communication technologies related to charging of electric vehicle
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies related to electric vehicle charging
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167Systems 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]
    • Y02T90/169Aspects supporting the interoperability of electric or hybrid vehicles, e.g. recognition, authentication, identification or billing
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/10Systems characterised by the monitored, controlled or operated power network elements or equipment
    • Y04S10/12Systems characterised by the monitored, controlled or operated power network elements or equipment the elements or equipment being or involving energy generation units, including distributed generation [DER] or load-side generation
    • Y04S10/126Systems characterised by the monitored, controlled or operated power network elements or equipment the elements or equipment being or involving energy generation units, including distributed generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supplying system, a vehicle power supply and a roadside power supply supplying power from the outside of a vehicle when vehicle power is short, supplying power to the outside of the vehicle when the vehicle power is excessive, preventing a capacity of a vehicle battery from increasing, and efficiently utilizing electric power energy. <P>SOLUTION: The power supplying system has the on-vehicle power supply provided with a power request signal transmitting means for transmitting a power request signal for requesting a supply of power to the outside of the vehicle when the quantity of stored power is the predetermined quantity or less, and a power receiving means for receiving power from the outside of the vehicle; and the roadside power supply provided with a power request signal receiving means for receiving the power request signal from the vehicle power supply, and a power transmitting means for transmitting power to the vehicle power supply transmitting the power request signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、電力を車両外部に送電でき、また、車両外部から電力の供給を受けられる電力供給システム、車載電源装置又は路側電源装置に関する。 The present invention can transmits power to the vehicle outside and, the power supply system can receive power from outside the vehicle, to the vehicle-mounted power supply or roadside power supply.

従来、車両の有する発電機能の有効利用を図るべく、車両が発電した電力を車外で活用する発明が提案されている(例えば、特許文献1参照。)。 Conventionally, in order to efficiently utilize the power generation function of the vehicle, invention to utilize the power vehicle is generated by the outside has been proposed (e.g., see Patent Document 1.). 特許文献1記載の発明によれば、車両の停止時に車両に搭載された発電機を用いて発電し、発電した電力を車両外部に送電する。 According to the invention of Patent Document 1, to generate electricity using a generator mounted on the vehicle when the vehicle is stopped, for transmitting the power generated outside the vehicle.
特開2001−231106号公報 JP 2001-231106 JP

しかしながら、特許文献1記載の発明では、車両は、自車の電力を車両外部に供給することによってその活用が図られるが、自車の電力が不足している場合に、車両外部から電力の供給を受けることができない。 However, in the invention of Patent Document 1, a vehicle is its utilization by powering of the vehicle outside of the vehicle is achieved, when the vehicle power is insufficient, supplied from the outside of the vehicle power not be able to receive.

また、例えばハイブリッド車や電気自動車では、走行により発電された電力や回生エネルギにより発電された電力の蓄電量が満杯になった場合には、その発電電力の一部が余剰の電力として廃棄されている。 Further, for example, in a hybrid vehicle or an electric vehicle, when the charged amount of power generated by the generated power and regenerative energy by the running is full, a part of the generated power is discarded as excess power there.

自車の電力不足を招かないため、又は、廃棄電力を生じさせないために、大きな容量のバッテリを車両に搭載することが考えられる。 Because does not cause power shortage of the vehicle, or, in order not to cause waste power, it is conceivable to mount a large capacity of the battery in the vehicle. しかし、このようにバッテリ容量が大きくなると、バッテリの容積が拡大したり、重量が増大する不都合が生ずる。 However, in this way the battery capacity is large, or to expand the volume of the battery, the disadvantage that the weight is increased occurs.

本発明は上記問題を鑑みて行ったものであり、自車の電力が不足している場合には、車両外部から電力の供給を受け、自車の電力に余裕がある場合には電力を車両外部に供給することにより、車載バッテリの容量を大きくすることなく、電力エネルギの効率的利用を図ることが可能な電力供給システム、車載電源装置及び路側電源装置を提供することを目的とする。 The present invention was done in view of the above problems, when the vehicle power is insufficient, the vehicle power if the vehicle outside supplied with electric power, there is a margin in the vehicle power by supplying to the outside, without increasing the capacity of the battery, the possible power supply system to achieve efficient use of power energy, and an object thereof is to provide a vehicle power supply device and a roadside power supply.

上記問題を解決するため、本発明は、蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、車両外部から電力を受電する電力受電手段と、を備えた車載電源装置と、車載電源装置からの前記電力要求信号を受信する電力要求信号受信手段と、電力要求信号を送信した車載電源装置に向けて電力を送電する電力送電手段とを備えた路側電源装置と、を有することを特徴とする。 To solve the above problems, the present invention, when the storage amount is equal to or less than the predetermined amount, a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the outside of the vehicle, electric power from the outside of the vehicle a power receiving means for receiving a vehicle power supply device and a power demand signal receiving means for receiving the power request signal from the vehicle power supply device, the power on-vehicle power supply apparatus that has transmitted a power request signal transmitting a and having a roadside power supply device and a power transmission means for the. 路側電源装置とは、路側に設けられたVICS用機器や、ETC用機器、交通情報標識(電光掲示板)用機器、信号機等に設けられた電源装置である。 The roadside power supply, and VICS equipment provided on roadside, a power supply device provided ETC equipment, traffic information signs (electric bulletin board) equipment, traffic signal or the like. これらVICS用機器等は、道路にほぼ連続的に設置されているので、車両に安定して電源を供給できる。 These VICS equipment, etc., because it is placed substantially continuously on the road, can supply power stably to the vehicle. また、既存の設備を利用すれば、コスト低減できる。 In addition, by using the existing equipment, it can reduce costs. 本発明によれば、自車の電力が不足している場合には、車両外部から電力の供給を受けることができる。 According to the present invention, when the vehicle power is insufficient, it can be supplied with electric power from the outside of the vehicle.

また、本発明は、蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、車両外部から電力を受電する電力受電手段と、を備えた第1の車載電源装置と、第1の車載電源装置からの電力要求信号を受信する電力要求信号受信手段と、蓄電量に余裕があるか否かを判断する蓄電量判断手段と、蓄電量判断手段による判断の結果に基づき、自車が蓄電している電力を前記第1の車載電源装置に送電する電力送電手段と、を備えた第2の車載電源装置とを有することを特徴とする。 Further, the present invention, when the storage amount is equal to or less than the predetermined amount, power receiving for receiving a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the outside of the vehicle, the electric power from the outside of the vehicle the first in-vehicle power supply device including means, and a power demand signal receiving means for receiving a power request signal from the first vehicle power supply device, the storage amount judgment to determine whether there is sufficient storage amount comprises means, based on a result of determination by the storage amount determining unit, and a power transmission means for transmitting the power which the vehicle is accumulated in the first vehicle electrical system, and a second vehicle-mounted power supply device provided with it is characterized in. 本発明によれば、車両間で、自車のバッテリの残存容量に応じて、車両から他の車両へ電力を供給することができる。 According to the present invention, among the vehicle, depending on the remaining capacity of the vehicle battery, power can be supplied from the vehicle to other vehicles.

本発明の一形態において、電力の送電又は受電は、電磁波を媒介にして行うことを特徴とする。 In one form of the present invention, transmission or receiving of power and performing by an electromagnetic wave to a medium. 電磁波であれば、送電線などを介さずに電力を供給することができるので、車両が走行中であっても、車両間又は車両と電源装置との間で相互に電力の供給が可能となる。 If the electromagnetic wave, it is possible to supply electric power not through the like transmission lines, even the vehicle is traveling, it is possible to supply electric power to and from the vehicle or between the vehicle and the power supply . また、電力の送電の媒介は電磁波でなく、レーザであってもよい。 Also, mediation of power transmission is not an electromagnetic wave, it may be a laser. また、車両間、又は車両と電源装置とを有線で接続して電力の供給を行ってもよい。 Moreover, inter-vehicle, or it may be carried out the supply of electric power by connecting the vehicle and the power supply by wire.

また、本発明は、蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、車両外部から電力を受電する電力受電手段と、を有することを特徴とする車載電源装置を提供する。 Further, the present invention, when the storage amount is equal to or less than the predetermined amount, power receiving for receiving a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the outside of the vehicle, the electric power from the outside of the vehicle providing an in-vehicle power supply apparatus, comprising: the means.

また、本発明は、他車両から送信される、電力の供給を要求する電力要求信号を受信する電力要求信号受信手段と、電力要求信号を受信したときに、蓄電量に余裕があるか否かを判断する蓄電量判断手段と、蓄電量判断手段による判断の結果に基づき、蓄電している電力を前記電力要求信号を送信した前記他車両に向けて送電する電力送電手段と、を有することを特徴とする車載電源装置を提供する。 Further, the present invention is transmitted from the other vehicle, and the power demand signal receiving means for receiving a power request signal requesting supply of electric power, when receiving a power request signal, whether there is sufficient storage amount a storage amount determining means for determining, based on the result of determination by the storage amount determining unit, and a power transmission means for the power that power storage to power transmission toward the other vehicle that has transmitted the power demand signal, to have a providing an in-vehicle power supply apparatus characterized. 本発明によれば、車両間で、自車のバッテリの残存容量に応じて、車両から他の車両へ電力を供給することができる。 According to the present invention, among the vehicle, depending on the remaining capacity of the vehicle battery, power can be supplied from the vehicle to other vehicles.

また、本発明は、車載電源装置における蓄電量が所定量以下である場合に車両から送信される、電力要求信号を受信する電力要求信号受信手段と、電力要求信号を送信した車両に向けて電力を送電する電力送電手段と、を有することを特徴とする路側電源装置を提供する。 Further, the present invention is a power storage amount in the vehicle power supply device is transmitted from the vehicle when it is less than a predetermined amount, and the power demand signal receiving means for receiving a power request signal, power toward the vehicle that has transmitted the power demand signal providing roadside power apparatus characterized by having a power transmission means for transmitting the. この場合において、電力の送電又は受電は、電磁波を媒介にして行うことができる。 In this case, the transmission or receiving power can be carried by an electromagnetic wave to a medium. 本発明によれば、自車の電力が不足している場合には、路側電源装置から電力の供給を受けることができる。 According to the present invention, when the vehicle power is insufficient, it can be supplied with electric power from the roadside power supply.

自車の電力が不足している場合には、車両外部から電力の供給を受け、自車の電力に余裕がある場合には電力を車両外部に供給することにより、車載バッテリの容量を大きくすることなく、電力エネルギの効率的利用を図ることが可能な電力供給システム、車載電源装置及び路側電源装置を提供することができる。 If the power of the vehicle is insufficient, it supplied with electric power from the outside of the vehicle, if there is room in the vehicle power by supplying power to the outside of the vehicle, to increase the capacity of the battery it can be provided without possible power supply system to achieve efficient use of power energy, the vehicle power supply device and a roadside power supply that.

以下、本発明の好ましい実施例について図面を参照して説明する。 It will be described below with reference to the accompanying drawings preferred embodiments of the present invention.

電力は、送電線などで電気的に接続されていない物理的に離れた場所に、電磁波などを媒介として送電することが可能である。 Power, the electrically unconnected physically remote location such as transmission lines, it is possible to power the electromagnetic wave or the like as a medium. 本実施例では、主に電磁波などを媒介にして、電力を送電する形態について説明する。 In this embodiment, mainly by electromagnetic waves or the like in mediating it is described the configuration for transmitting the power.

図1(a)は、電力の送受電が可能な車両により構成された電力供給システムの概略図を示す。 1 (a) shows a schematic diagram of a power supply system transmitting and receiving of power is constituted by the vehicle as possible. 電力供給システムは、車両に搭載された車両電源装置10及び道路や路側に設置された路側電源装置50を有する。 Power supply system includes a roadside power supply 50 installed in the vehicle power supply device 10 and the road and the roadside mounted on the vehicle.

車載電源装置10及び路側電源装置50はそれぞれ、アンテナ12、アンテナ11、発振/整流回路13及び制御部14を有するように構成される。 Each vehicle power supply device 10 and the roadside power supply 50 includes an antenna 12, an antenna 11 configured to have an oscillation / rectifier circuit 13 and the control unit 14. 車載電源装置10及び路側電源装置50はそれぞれ、アンテナ12を介して、電力の送電を行い、また、供給を受ける。 Each vehicle power supply device 10 and the roadside power supply 50 via the antenna 12, performs a transmission power, also supplied. アンテナ11は、データ信号を送信するためのアンテナである。 Antenna 11 is an antenna for transmitting data signals. 制御部14は、電力の送電を行う場合には、発振/整流回路13によりアンテナ12から電磁波を放出させ、電力の供給を受ける場合には、アンテナ12で受信した電磁波を発振/整流回路13で整流する。 Control unit 14, when performing transmission of power, the oscillation / to release an electromagnetic wave from the antenna 12 by the rectifier circuit 13, when supplied with electric power, an electromagnetic wave received by the antenna 12 by the oscillation / rectifier circuit 13 rectification to. なお、アンテナ12について詳しくは後述する。 In addition, more information about the antenna 12 will be described later.

車載電源装置10は、電力が不足している場合には路側電源装置50から電力の供給を受け、電力に余裕がある場合は、路側電源装置50に送電することができる。 Vehicle power supply device 10, when supplied from the roadside power supply 50 power of the power is insufficient, if there is sufficient power may be power to the roadside power supply 50. 車載電源装置10を搭載した車両は、原動機のみで駆動される車両であってもよいが、電力により車両を駆動できるハイブリッド車や電気自動車が好適である。 Vehicle equipped with a vehicle power supply device 10 may be a vehicle that is driven only by a prime mover, but it is preferred hybrid and electric vehicles that can drive the vehicle by electric power. ハイブリッド車等では、路側電源装置50から電力の供給を受け、当該電力を用いて電動機により車両を駆動できる。 In a hybrid vehicle or the like, supplied with electric power from the roadside power unit 50 can drive the vehicle by the electric motor using the electric power.

路側電源装置50は、車載電源装置10と同様に電力の送電、蓄電及び電力供給を受けることが可能である。 Roadside power supply 50 is likewise power transmission and vehicle power supply device 10, it is possible to receive a power storage and power supply. 路側電源装置50は、例えば発電所や変電所から電力の供給を受けており、車載電源装置10に電源を供給する十分な電力を有する。 Roadside power supply 50 is, for example, supplied with electric power from power plants and substations have sufficient power to supply power to the vehicle power supply device 10.

路側電源装置50は、路側に設けられている。 Roadside power supply 50 is provided on the roadside. より好適には、路側に設けられた道路側機器を用いることが好ましい。 More preferably, it is preferable to use a road-side device provided on the road side. 図1(b)は、路側に設けられた道路側機器の一例を示す。 1 (b) shows an example of a road-side device provided on the road side. 路側には、高度道路交通システムの実現の一環としてITS(Intelligent Transport Systems)環境が整えられてきたため、VICS(Vehicle Because the roadside, ITS (Intelligent Transport Systems) environment has been appointed as part of the realization of intelligent transport systems, VICS (Vehicle
Information and Communication System)用機器41や、ETC(Electronic Toll Collection System)用機器43、交通情報標識(電光掲示板)42などの道路側機器が設置されている。 And Information and Communication System) equipment 41, ETC (Electronic Toll Collection System) equipment 43, traffic information signs (road side equipment, such as electronic billboards) 42 is installed. 本実施例の電力供給システムは、これらの道路側機器を利用することで、コストを最小限に抑えて実現できる。 Power supply system of this embodiment, by utilizing these road side equipment can be implemented with minimal cost.

続いて、車載電源装置10を備えた車両の機能構成について詳細に説明する。 Next, it will be described in detail the functional configuration of a vehicle equipped with the vehicle power supply device 10. 図2は、本発明の一実施例である電力供給システムに適用されるハイブリッド車両の車載装置の機能構成図を示す。 Figure 2 shows a functional block diagram of the in-vehicle apparatus of a hybrid vehicle that is applied to the power supply system according to an embodiment of the present invention. 本実施例において、車載装置は、電子制御ユニット(以下、ECUと称す)30を備えており、ECU30により制御される。 In this embodiment, the vehicle-mounted device, an electronic control unit (hereinafter, referred to as ECU) includes a 30, it is controlled by the ECU 30. ECU30は、エンジン28とモータ16の駆動力を制御し、車両を走行させる。 ECU30 controls the driving force of the engine 28 and the motor 16, drives the vehicle.

車両は、車輪FLとFRとを連結する車軸27を備えている。 Vehicle includes an axle 27 which connects the wheels FL and FR. 車軸27には、モータ16が連結されている。 The axle 27, the motor 16 is connected. モータ16には、切り替えスイッチ22が電気的に接続されている。 The motor 16, the changeover switch 22 is electrically connected. 切り替えスイッチ22には、インバータ23を介してバッテリ15が電気的に接続されている。 The changeover switch 22, a battery 15 via the inverter 23 are electrically connected. 切り替えスイッチ22は、ECU30に接続されており、ECU30からの指令信号によりモータ16、インバータ23の導通状態を切り替える。 Changeover switch 22 is connected to the ECU 30, switching the conduction state of the motor 16, the inverter 23 by a command signal from the ECU 30.

モータ16は、該モータ16とインバータ23とが導通している状況下で、バッテリ15からインバータ23を介して電力が供給されることにより車輪FL,FRを駆動させる駆動トルクを発生する。 Motor 16, in a situation where the said motor 16 and the inverter 23 is conducting, the battery 15 via the inverter 23 to generate a driving torque for driving the wheels FL, FR by which power is supplied. また、モータ16は、車輪側からトルクが入力された場合に、そのトルクを電気エネルギに変換して電力を発生する発電機として機能する。 The motor 16, when the torque from the wheel side is inputted, functions as a generator for generating electric power by converting the torque into electrical energy. モータ16で発生した回生電力は、モータ16とインバータ23(コンバータ機能付き)とが導通している場合はバッテリ15に回収される。 Regenerative power generated by the motor 16, if the motor 16 and the inverter 23 and (with converter function) is conducting is recovered to the battery 15.

インバータ23は、ECU30に接続されており、ECU30により制御される。 Inverter 23 is connected to the ECU 30, it is controlled by the ECU 30. ECU30は、車両において駆動トルクの発生が要求されている場合は、要求されている駆動トルクに応じた電力がモータ16に供給されるようにインバータ23を制御する。 ECU30, if the generation of drive torque is required in the vehicle, electric power corresponding to the drive torque that is required to control the inverter 23 to be supplied to the motor 16. モータ16は、インバータ23から電力が供給されると、その電力に応じた駆動トルクを発生する。 Motor 16, the power from the inverter 23 is supplied, for generating a driving torque corresponding to the power.

また、車両は、該車両を制動させるために操作されるブレーキペダル(図示せず)、および、車輪FL,FR,RL,RRに制動力を発生させるブレーキアクチュエータ25を備えている。 The vehicle is a brake pedal (not shown) which is operated to brake the vehicle, and, the wheels FL, FR, RL, and a brake actuator 25 to generate a braking force to the RR. ブレーキペダルには、ブレーキの操作量を検出するブレーキストロークセンサ26が配設されている。 The brake pedal, a brake stroke sensor 26 for detecting an operation amount of the brake is disposed. ブレーキストロークセンサ26は、ブレーキペダルの操作量に応じた電気信号を出力する。 Brake stroke sensor 26 outputs an electrical signal corresponding to the operation amount of the brake pedal. ブレーキストロークセンサ26の出力信号は、ECU30に供給されている。 The output signal of the brake stroke sensor 26 is supplied to the ECU 30. ECU30は、ブレーキストロークセンサ26の出力信号に基づいてブレーキペダルの操作量を検出する。 ECU30 detects an operation amount of the brake pedal based on the output signal of the brake stroke sensor 26. また、ブレーキアクチュエータ25は、ECU30に接続されており、ブレーキペダルの操作量に応じた駆動信号をECU30から供給されることにより駆動し、車輪FL,FR,RL,RRに制動力を発生させる。 The brake actuator 25 is connected to the ECU 30, driven by supplying a driving signal corresponding to the operation amount of the brake pedal from the ECU 30, the wheels FL, FR, RL, to generate a braking force to the RR.

ECU30には、バッテリ電圧センサ24が接続されている。 The ECU 30, a battery voltage sensor 24 are connected. バッテリ電圧センサ24は、バッテリ15の端子間電圧(以下、バッテリ電圧と称す)VBATに応じた電気信号を出力する。 Battery voltage sensor 24, inter-terminal voltage of the battery 15 (hereinafter, referred to as a battery voltage) and outputs an electrical signal corresponding to VBAT. ECU30は、バッテリ電圧センサ24の出力信号に基づいてバッテリ電圧VBATを検出する。 ECU30 detects the battery voltage VBAT on the basis of the output signal of the battery voltage sensor 24. バッテリの充電状態、すなわち残存容量は、バッテリ電圧及び不図示のバッテリ電流やバッテリ温度に基づいて検出される。 Charge state, i.e. the remaining capacity of the battery is detected based on the battery current and the battery temperature of the battery voltage and not shown.

アンテナ12について説明する。 For antenna 12 will be described. 車両外部からアンテナ12に電磁波が到達すると、電磁波は整流されてバッテリ15に回収される。 When the electromagnetic wave reaches the antenna 12 from the outside of the vehicle, the electromagnetic wave is collected in is rectified battery 15. すなわち、アンテナ12は、電力の供給を受ける場合には、電磁誘導作用により、受信した電磁波の磁界の変化に応答して電流を発生させる。 That is, the antenna 12, when supplied with power by electromagnetic induction action to generate a current in response to a change in the magnetic field of the received electromagnetic wave. 発生させられた電流は、発振/整流回路13により整流され、バッテリ15に蓄電される。 Current that is allowed to occur is rectified by the oscillation / rectifier circuit 13, it is stored in the battery 15. また、アンテナ12が電力を送電する場合には、発振/整流回路13がバッテリ15の電力を用いて、アンテナ12から電磁波を放出する。 Further, when the antenna 12 transmits power, the oscillation / rectifier circuit 13 using the electric power of the battery 15, which emits electromagnetic waves from the antenna 12. アンテナ12は、例えばコイル状の導線で形成されており、電磁波の周波数などに応じてコイルの巻数や導線の径が設計される。 Antenna 12 is formed, for example, a coil-shaped conductive wire, the diameter of the turns and the coil conductor is designed depending on, for example, to the frequency of the electromagnetic wave. また、アンテナ12は、例えば、レクテナであってもよい。 The antenna 12 is, for example, be a rectenna. レクテナは、複数の小さなダイポールアンテナのそれぞれにダイオード検波回路を設けたものである。 Rectenna, is provided with a diode detector circuit to each of a plurality of small dipole antenna. レクテナは、主にマイクロ波を受信してマイクロ波から得られた整流出力を合成して直流電流を取り出す。 Rectenna mainly receives the microwaves to synthesize the rectified output obtained from the microwave retrieve the DC current. また、本実施例では、送電線などを介さずに、電力を離れた場所に送電することに特徴があるため、例えば電力の供給の媒介としてレーザを用いてもよい。 Further, in the present embodiment, without using the like power lines, because of the characteristics to transmission to a remote location power, for example, a laser may be used as an intermediary power supply. レーザはエネルギ密度が高いため、電力の送電効率が向上する。 Laser because the energy density is high, thereby improving transmission efficiency of power. レーザを用いる場合、アンテナ12は、レーザ発振装置及びレーザを電力に変換する光電変換素子で形成される。 When using a laser, the antenna 12 is formed in the photoelectric conversion element for converting the laser oscillator and the laser power.

発信/整流回路13には制御部14が、制御部14にはECU30が接続されている。 Control unit 14 to transmit / rectifier circuit 13, ECU 30 is connected to the control unit 14. ECU30は、制御部14に、電力の送電又は供給を受けるように制御信号を出力する。 ECU30 is the control unit 14 outputs a control signal to receive power or power supply. 制御部14は、制御信号に基づき、バッテリ15の電力を送電し、また、他の車両からの電磁波を受信し電力の供給を受ける。 Control unit 14 based on the control signal, and transmitting the power of the battery 15, also receives the electromagnetic wave from another vehicle powered.

図2では、アンテナ12が車両の前後に設置されている。 In Figure 2, the antenna 12 is installed in the front and rear of the vehicle. 電力の送電に、マイクロ波やレーザなどの指向性の高い媒体を用いる場合には、車載電源装置10と路側電源装置50のアンテナ12が対面できるように設置することが好適である。 The transmission of power, in the case of using a high directivity such as a microwave or laser medium, it is preferable that the antenna 12 of the vehicle power supply device 10 and the roadside power supply 50 is disposed so as to be face-to-face. また、電力の送電に電磁波を用いた場合には、一般に距離の2乗に反比例して送電される電力が減少するので、車載電源装置10と路側電源装置50との距離が短くなるようにアンテナ12を設置することが好適である。 In the case of using electromagnetic waves in the transmission of power, since generally power transmitted in inverse proportion to the square of the distance decreases, so that the distance between the vehicle power supply device 10 and the roadside power supply 50 is shortened antenna it is preferable to install a 12. したがって、アンテナ12は、2個に限られず3個以上設けてもよいし、適切な場所に1個設けてあってもよい。 Therefore, the antenna 12 may be provided three or more is not limited to two, may be each other provided one to the right place.

また、ECU30には、データ送受信装置21が、データ送受信装置21にはアンテナ11が接続されている。 Further, the ECU 30, data transceiver 21, an antenna 11 is connected to the data transceiver 21. 車載電源装置10は、アンテナ11が送受信するデータ信号により路側電源装置50の存在を認識する。 Vehicle power supply device 10 recognizes the presence of a roadside power supply 50 by way of data signals the antenna 11 to transmit and receive. すなわち、アンテナ11及びデータ送受信装置21は、道路側機器(インフラ設備)からのFMや光・電波ビーコンなど種々のデータ信号を送受信する路車間通信装置、及び、車両間でデータ信号を送受信する車両間通信装置として機能する。 That is, the antenna 11 and data transceiver 21, the road side device (infrastructure) road-vehicle communication apparatus for transmitting and receiving various data signals such as FM and light-radio beacon from, and to transmit and receive data signals between vehicles vehicle functions as between the communication device.

以上の構成に基づいて本実施例を説明する。 The present embodiment will be explained based on the above configuration. 車両のECU30は、所定の時間間隔毎にバッテリ15の残存容量を調べたり、バッテリ電圧センサ24からバッテリ電圧が所定値よりも下がったことを知らせる旨の信号を受け、バッテリ15の残存容量が不足したことを検出する。 ECU30 vehicle receives a signal indicating informing that and examine the remaining capacity of the battery 15, from the battery voltage sensor 24 battery voltage falls below a predetermined value at predetermined time intervals, insufficient remaining capacity of the battery 15 detects that the. バッテリの残存容量が不足していることを検出すると、ECU30は、アンテナ11を用いて、自車のバッテリの残存容量が不足した旨のデータ信号(以下、電力要求信号という)を路側電源装置50に送信する。 When it is detected that the remaining capacity of the battery is insufficient, ECU 30 uses the antenna 11, the vehicle battery data signal indicating that the remaining capacity is insufficient (hereinafter, referred to as power demand signal) roadside power supply 50 to send to. 電力要求信号を受けた路側電源装置50は、アンテナ12を介して、電源から電磁波などを媒介にして電力を車載電源装置10へ送信する。 Roadside power supply 50 which receives a power request signal via the antenna 12, and transmits the power to the vehicle power supply device 10 to the power supply electromagnetic waves, etc. on a medium. この結果、車載電源装置10は、バッテリ15の残存容量を増大させることができる。 As a result, the in-vehicle power supply apparatus 10 can increase the residual capacity of the battery 15.

バッテリ15を十分に充電するほどの時間、電力の供給を受けられない場合には、次の路側電源装置50を検出し、当該路側電源装置50に電力要求信号を送信する。 Time enough to charge the battery 15 sufficiently, if not supplied with power, detects the following roadside power supply 50 sends a power request signal to the roadside power supply 50. これを繰り返すことで車載電源装置10はバッテリ15の残存容量の不足を補うことができる。 Vehicle power supply device 10 by repeating this can compensate for the lack of the remaining capacity of the battery 15.

また、車載電源装置10で回生エネルギなどを回収した結果、残存容量に余裕が生じた場合には、路側電源装置50に余剰となった電力を送電する。 Further, the vehicle-mounted power supply 10 results collected and regenerative energy, if the margin occurs in the remaining capacity, the transmission power becomes surplus roadside power supply 50. 車両は、走行中、アンテナ11を用いて路側電源装置50の存在を確認し、確認できると路側電源装置50のアンテナ12へ電力を送電する。 Vehicle, traveling to confirm the presence of a roadside power supply 50 using the antenna 11, which transmits power to the antenna 12 of the roadside power supply 50 to be able to verify. 路側電源装置50は、供給された電力を蓄電し、他の車両から電力要求信号があった時に、供給された電力を当該車両に送電する。 Roadside power supply 50 power storage the supplied power, when there is a power demand signal from another vehicle and transmitting the supplied power to the vehicle. これにより、車載電源装置10が回収した回生エネルギなどが有効に活用される。 Thus, such a regenerative energy vehicle power supply device 10 is recovered can be effectively utilized.

本実施例によれば、既設の道路側機器を利用して、車両と道路側機器との間で相互に電力の供給が可能となる。 According to this embodiment, by utilizing the existing road side equipment, mutually it becomes possible to supply electric power between the vehicle and the road side equipment. 道路側機器は、道路にほぼ連続的に設置されており、また、今後も増設される傾向にあるため、車両は安定した電源の供給を受けることができる。 Road side equipment is installed substantially continuously on the road, and because tend to be added in the future, the vehicle can be supplied with stable power. 例えば、ハイブリッド車や電気自動車などでは、発進・加速時に電力を使用するが、本実施例では、道路側機器が有する路側電源装置50から電力の供給を受けることができる。 For example, such a hybrid and electric vehicles, but to use power during start and acceleration, in the present embodiment, it is possible to receive power supply from the roadside power unit 50 having the road side equipment. また、制動時に回収した回生エネルギによりバッテリが満杯になっても、余剰な電力を廃棄せずに路側電源装置50に送電し蓄電できる。 Further, even if the battery becomes full by the regenerative energy recovered during braking can be transmission to the roadside power supply 50 without discarding the excess power energy storage. したがって、ハイブリッド車などの車載バッテリの容量を大きくすることなく、車両の電力エネルギの効率的利用を図ることができる。 Accordingly, without increasing the capacity of the battery, such as a hybrid vehicle, it is possible to achieve efficient use of power energy of the vehicle.

実施例1では、車両と道路側機器との間で相互に電力の供給を行う電力供給システムについて説明した。 In Example 1, it was described power supply system for the mutual power supply between the vehicle and the road side equipment. 実施例2では、車両同士の間で相互に電力の供給を行う電力供給システムについて説明する。 In Example 2, an explanation is given regarding the electric power supply system for supplying electric power to and from the vehicle to each other. 車両間通信のように、車両同士の間で無線データ通信が可能となった場合には、データ信号と共に、相互に電力の供給を行うことが可能となる。 As communication between vehicles, when it becomes a radio data communication is possible between between vehicles, along with the data signals, mutually becomes possible to supply the power.

図3は、実施例2における電力供給システムの概略図を示す。 Figure 3 shows a schematic diagram of a power supply system in the second embodiment. 図3の電力供給システムでは、車載電源装置10及び車載電源装置20が、アンテナ12により、それぞれの車両が蓄電している電力を相互に供給することができる。 The power supply system of FIG. 3, can be vehicle-mounted power supply 10 and the vehicle power supply device 20, the antenna 12, supplying power to each of the vehicle is accumulated in each other. 車載電源装置10、車載電源装置20及び車両の機能構成については図2で説明したので省略する。 Omitted vehicle power supply device 10, so as described in-vehicle power supply apparatus 20 and FIG. 2 is the functional configuration of the vehicle.

図3の構成に基づき、車載電源装置10が車載電源装置20から電力の供給を受ける動作を説明する。 Based on the arrangement of FIG. 3, the operation of vehicle power supply device 10 is supplied with electric power from the vehicle power supply device 20. 図4は、車載電源装置10が車載電源装置20から電力の供給を受ける動作のアクティビティ図を示す。 Figure 4 shows the activity diagram of the operation of vehicle power supply device 10 is supplied with electric power from the vehicle power supply device 20. 例えば走行中に、車載電源装置10のバッテリ15の残存容量が不足した場合に本動作が開始される。 For example, during travel, the operation is started when the remaining capacity of the battery 15 of the in-vehicle power supply 10 is insufficient. なお、車両は走行中であっても停止していてもよい。 The vehicle may be stopped even during traveling.

ステップS11では、車載電源装置10が、アンテナ11を用いて、自車のバッテリの残存容量が不足した旨のデータ信号(以下、電力要求信号という)を車載電源装置20に送信する。 In step S11, the vehicle-mounted power supply 10, using the antenna 11, the vehicle battery data signal indicating that the remaining capacity is insufficient (hereinafter, referred to as power demand signal) to the vehicle power supply device 20. 例えば、ECU30は、所定の時間間隔毎にバッテリ15の残存容量を調べたり、バッテリ電圧センサ24からバッテリ電圧が所定値よりも下がったことを知らせる旨の信号を受け、バッテリ15の残存容量が不足したことを検出する。 For example, ECU 30 receives a signal indicating informing that and examine the remaining capacity of the battery 15, from the battery voltage sensor 24 battery voltage falls below a predetermined value at predetermined time intervals, insufficient remaining capacity of the battery 15 detects that the. バッテリ15の残存容量の不足は、若干量不足している状態から非常に少ない状態まで、残存容量を数段階に分けて検出してもよい。 Lack of charge of the battery 15, from a state in which missing a small amount to a very small state, the remaining capacity may be detected in several steps. 電力を供給する車載電源装置20は、車載電源装置10のバッテリ15の残存容量に応じて、供給する電力量などを調整できる。 Vehicle power supply device 20 supplies power, depending on the remaining capacity of the battery 15 of the vehicle power supply device 10 can be adjusted and amount of power supplied.

ステップS12では、電力要求信号を受信した車載電源装置20が、自車のバッテリの残存容量をチェックする。 In step S12, the vehicle power supply device 20 receiving a power request signal, it checks the remaining capacity of the vehicle battery. 残存容量のチェックの結果、車載電源装置10に供給するほどの電力を有していない場合には電力送信できない旨の送電不可信号を、車載電源装置10に送信する。 Result of the check the remaining capacity, the transmission disable signal to the effect that can not be power transmission if they do not have power enough to supply the vehicle power supply device 10, and transmits to the vehicle power supply device 10.

ステップS13では、車載電源装置10が、車載電源装置20から送電不可信号を受信する。 In step S13, the vehicle-mounted power supply 10 receives the transmission disable signal from the vehicle power supply device 20. 電力の供給を受けられないので、今回の電力要求信号に基づく動作は終了する。 Since not receive supply of power, operation ends based on the current power demand signal.

残存容量のチェックの結果、車載電源装置10へ送信する余剰電力が存在する場合には、ステップS14及びステップ15で、車載電源装置20が車載電源装置10に電磁波を媒介として電力を送電し、車載電源装置10が車載電源装置20から当該電力を受電する。 Result of the check the remaining capacity, if the surplus power to be transmitted to the vehicle power supply device 10 is present, in step S14 and step 15, the power and transmitting the electromagnetic waves as a medium in-vehicle power supply 20 is vehicle-mounted power supply 10, vehicle power supply 10 receiving the power from the vehicle power supply device 20. 所定量の電力の送電が終了すると、今回の電力要求信号に基づく動作は終了する。 When transmission of a predetermined amount of power is terminated, operation ends based on the current power demand signal.

本実施例の電力供給システムでは、道路に路側電源装置50がなくても、電力を相互に供給することが可能となる。 In the power supply system of the present embodiment, even if there is no road-side power supply 50 to the road, it is possible to supply power to each other.

また、図3において点線で記載したように、路側電源装置50を設置して、実施例1と同様に路側電源装置50との間でも電力を相互に供給できるようにしてもよい。 Moreover, as described by a dotted line in FIG. 3, by installing the roadside power supply 50 may be able to provide mutual power even with the roadside power supply 50 in the same manner as in Example 1. いわゆるAdHoc通信網(ユビキタスネットワーク)においては、車両間だけでなく、車両と道路側機器とにおいて無線データ通信が可能となる。 In so-called AdHoc Networks (ubiquitous), not only between vehicles, wireless data communication is possible in the vehicle and the road side equipment. 例えば、車載電源装置10は、まず路側電源装置50を無線データ通信により検出し、路側電源装置50が近くに存在しない場合には、他の車両に電力要求信号を送信する。 For example, the in-vehicle power supply apparatus 10, first, the roadside power supply 50 is detected by wireless data communication, when the roadside power supply 50 is not in the vicinity, transmits a power request signal to the other vehicles. 電源容量の大きい路側電源装置50を先に検出すれば、十分な電力の供給が受けられる。 By detecting the large roadside power supply 50 of the power supply capacity above, sufficient power supply is received.

また、車載電源装置10は、路側電源装置50よりも先に車載電源装置20に電力要求信号を送信してもよい。 Further, the in-vehicle power supply apparatus 10, the vehicle power supply device 20 before the roadside power supply 50 may transmit a power request signal. 車両間の電力の供給を優先すれば、車両で発電された電力を有効に活用でき、発電や送電にコストのかかる路側電源装置50の電力の使用を低減できる。 If it is preferred to supply the power between the vehicle, the electric power generated by the vehicle can be effectively utilized, thereby reducing the use of power of the roadside power supply 50 costly in power generation and transmission. また、路側電源装置50と車載電源装置20とを区別せずに電力要求信号を送信してもよい。 It is also possible to transmit a power request signal without distinction with the roadside power supply 50 and the vehicle power supply device 20. かかる電力供給システムでは、車載電源装置10に対する路側電源装置50及び車載電源装置20の存在位置、並びに、車載電源装置20のバッテリ15の残存容量に応じて、適切な電源から電力を供給することができる。 In such a power supply system, the location of the in-vehicle power supply roadside power supply 50 for 10 and the in-vehicle power supply 20, and, depending on the remaining capacity of the battery 15 of the in-vehicle power supply 20, to supply power from suitable power supply it can.

本実施例では、道路に路側電源装置50がなくても、電力の供給を受けることが可能となる。 In this embodiment, even if there is no road-side power supply 50 to the road, it is possible to receive power. また、道路側機器が路側電源装置50を有していた場合には、車両と路側電源装置50のうち適切な電源と、相互に電力の供給を行うことができる。 Further, when the road side device had a roadside power device 50 can perform the appropriate power of the vehicle and the roadside power unit 50, another power supply.

実施例1及び2では、隣接した2台の車両同士又は車両と路側電源装置50との間で電力の供給を行う電力供給システムについて説明した。 In Examples 1 and 2 were described power supply system for supplying power between the adjacent two vehicles or between vehicles and roadside power supply 50. 実施例3では、隣接した車両に限られず、AdHoc通信網で通信可能な車両間で電力の供給を行う電力供給システムについて説明する。 In Example 3, not limited to adjacent vehicle will be described a power supply system for supplying electric power between a communicable vehicle AdHoc networks.

上述したAdHoc通信網を利用すれば、2台の車両間だけでなく、複数の車両が連続して走行または停止している場合に、例えば、最後尾と先頭の車両間で無線データ通信を行うことができる。 By using the AdHoc networks described above, not only between the two vehicles, performed when a plurality of vehicles is traveling or stopped in succession, for example, wireless data communication between end and start of the vehicle be able to. したがって、無線データ通信が可能であれば、最後尾と先頭の車両間で、データ信号と共に電力の供給を相互に行うことが可能となる。 Accordingly, wireless data communication is possible, between the end and the beginning of the vehicle, it is possible to supply the power to each other with the data signal.

図5(a)は、実施例3における電力供給システムの概略図を示す。 5 (a) shows a schematic diagram of a power supply system according to the third embodiment. 図5(a)の電力供給システムにおいては、車載電源装置10と車載電源装置20が、車両1aや1b等を介して、相互に電力の供給を行うことができる。 In the PD system of FIG. 5 (a), the vehicle-mounted electric power source device 10 and the in-vehicle power supply apparatus 20, through the vehicle 1a and 1b, etc., mutual can be supplied power. 車両1a又は1bは、車載電源装置10と同一の車載電源装置を有する。 Vehicle 1a or 1b has the same board power supply device and a vehicle power supply device 10. したがって、車両1a及び車両1bは、アンテナ12を介して、それぞれの車両が蓄電している電力を相互に送電することができる。 Therefore, the vehicle 1a and the vehicle 1b, via the antenna 12, can each of the vehicle transmission to one another power that power storage.

まず車載電源装置10は、アンテナ11を用いて、電力要求信号を車両1aに送信する。 Vehicle power supply device 10 First, by using the antenna 11, and transmits a power request signal to the vehicle 1a. 例えば、ECU30は、所定の時間間隔毎にバッテリ15の残存容量を調べたり、バッテリ電圧センサ24からバッテリ電圧が所定値よりも下がったことを知らせる旨の信号を受け、バッテリ15の残存容量が不足したことを検出する。 For example, ECU 30 receives a signal indicating informing that and examine the remaining capacity of the battery 15, from the battery voltage sensor 24 battery voltage falls below a predetermined value at predetermined time intervals, insufficient remaining capacity of the battery 15 detects that the.

車両1aは、自車のバッテリ15の残存容量をチェックする。 Vehicle 1a checks the remaining capacity of the vehicle battery 15. チェックの結果、電力の送電が可能であれば車載電源装置10に電力を送電するが、残存容量に余裕がない場合には、車載電源装置10から送信された電力要求信号を車両1bへ送信する。 Check result, although the transmission power to the vehicle power supply device 10 if possible transmission power, when there is no margin in the remaining capacity, the transmit power request signal transmitted from the vehicle power supply device 10 to the vehicle 1b .

電力要求信号を受信した車両1bは、車両1aと同様に、自車のバッテリ15の残存容量をチェックする。 Vehicle 1b which receives the power demand signal, similar to the vehicle 1a, checks the remaining capacity of the vehicle battery 15. チェックの結果、電力の送電が可能であれば、車両1aに電力を送電し、次いで、車両1aは車載電源装置10に電力を送電する。 Check result, the transmission of power is possible, and transmits power to the vehicle 1a, then the vehicle 1a is transmitting power to the vehicle power supply device 10. 残存容量に余裕がない場合には、車両1aから送信された電力要求信号を車載電源装置20へ送信する。 If there is no margin in the remaining capacity, the transmit power request signal transmitted from the vehicle 1a to the vehicle power supply device 20.

電力要求信号を受信した車載電源装置20は、自車のバッテリ15の残存容量をチェックし、電力の送電が可能であれば、車両1bに電力を送電し、次いで、車両1bは車両1aに電力を送電し、次いで、車両1aは車載電源装置10に電力を送電する。 Vehicle power supply device 20 receiving a power request signal, checks the remaining capacity of the vehicle battery 15, the transmission of power is possible, and transmits power to the vehicle 1b, then the vehicle 1b power to the vehicle 1a and power transmission, and then, the vehicle 1a is transmitting power to the vehicle power supply device 10. すなわち、車載電源装置10は、車両1b及び1a等を介して、車載電源装置20から電力の供給を受けることができる。 That is, the vehicle-mounted power supply unit 10 via the vehicle 1b and 1a etc., it can be supplied with electric power from the vehicle power supply device 20.

図5(a)のような電力供給システムでは、隣接した車両だけでなく、連続した複数の車両の先頭車両から電力の供給を受けることが可能である。 The power supply system as in FIG. 5 (a), not only the adjacent vehicle, and can be supplied with power from the lead vehicle of a plurality of vehicles continuous. また、先頭車両など所定の一台の車両からのみからでなく、複数の車両から電力の供給を受けることも可能である。 Furthermore, not only from a predetermined one vehicle such as the leading vehicle, it is possible to receive power from a plurality of vehicles. したがって、相互に電力の供給を行う機会が増大し、車両で発電された電力の更なる有効活用が可能である。 Accordingly, another increases the opportunity to supply the power, it is possible to further effective use of power generated by the vehicle.

また、本実施例においても、道路側機器を利用して電力の相互の供給が可能である。 Also in this embodiment, it is possible to supply electric power mutually utilizing the road side equipment. 図5(b)は、道路側機器として信号機45a及び45b、及び、道路51の地下などに配設された送電線60を有する点で、図5(a)と異なる。 FIG. 5 (b), traffic signals 45a and 45b as the road side device, and in that it has a transmission line 60 which is disposed such as in the basement of the road 51, different 5 and (a). 信号機45aと45bは、信号を点灯させる電源供給のための送電線60で相互に、また不図示の他の信号機と電気的に接続されている。 Traffic 45a and 45b are mutually at the transmission line 60 for supplying power for lighting the signal, and is also electrically connected to the other traffic signal (not shown). 信号機45a等には、データ信号を送受信させるアンテナ11及び電力を供給するアンテナ12が設けられている。 The traffic light 45a or the like, the antenna 11 and the antenna 12 supplies power to transmit and receive data signals is provided. したがって、図5(b)のような電力供給システムでは、AdHoc通信網により無線データ通信が可能であると共に、例えば車載電源装置20から信号機45bに電力を送電し、送電線60を介して送電された電力を、他の信号機45aから車載電源装置10に供給することができる。 Therefore, in the power supply system as in FIG. 5 (b), as well as a possible wireless data communications by AdHoc networks, for example, vehicle power supply device 20 and transmits power to the traffic signal 45b from the power transmission through the power transmission line 60 the power can be supplied to the vehicle power supply device 10 from other traffic 45a.

図5(b)における、電力供給システムの動作について説明する。 Figure in 5 (b), the operation of the power supply system. 図6は、車載電源装置10が車載電源装置20から、送電線60を介して電力の供給を受ける動作のアクティビティ図を示す。 6, the vehicle power supply device 10 is in-vehicle power supply apparatus 20, showing the activity diagram of the operation of receiving a supply of power through the transmission line 60. 例えば走行中に、バッテリ15の残存容量が不足した場合に本動作が開始される。 For example, during traveling, the operation when the remaining capacity of the battery 15 is insufficient is started. なお、車両は走行中であっても停止していてもよい。 The vehicle may be stopped even during traveling. また、車載電源装置10が電力の供給を要求し、車載電源装置20はAdHoc通信網で通信可能な範囲に存在する車両の最後尾又は先頭の車両の電源装置である。 Further, the in-vehicle power supply device 10 requests the supply of power, vehicle power supply device 20 is a power supply of the last or top of a vehicle of a vehicle existing in a communicable range AdHoc networks.

ステップS101では、車載電源装置10が、アンテナ11を用いて、電力要求信号を車両1aに送信する。 In step S101, the vehicle-mounted power supply 10, using the antenna 11, and transmits a power request signal to the vehicle 1a. 例えば、ECU30は、所定の時間間隔毎にバッテリ15の残存容量を調べたり、バッテリ電圧センサ24からバッテリ電圧が所定値よりも下がったことを知らせる旨の信号を受け、バッテリ15の残存容量が不足したことを検出する。 For example, ECU 30 receives a signal indicating informing that and examine the remaining capacity of the battery 15, from the battery voltage sensor 24 battery voltage falls below a predetermined value at predetermined time intervals, insufficient remaining capacity of the battery 15 detects that the.

ステップS102では、電力要求信号を受信した車両1aが、自車のバッテリ15の残存容量をチェックする。 In step S102, the vehicle 1a which receives a power request signal, checks the remaining capacity of the vehicle battery 15. その結果、残存容量が十分である場合にはステップS104においては電力の送電を行い、残存容量に余裕がない場合には、電力要求信号を隣接する車両1bに送信する。 As a result, if the remaining capacity is sufficient, it performs a transmission power in step S104, when there is no margin in the remaining capacity is transmitted to the vehicle 1b adjacent the power demand signal. なお、車両1aと車両1bの間に複数の車両があってもよい。 Incidentally, there may be multiple vehicles between cars 1a and 1b. その場合には、各車両が、バッテリ15のチェック動作と電力要求信号の送信とを繰り返す。 In that case, each vehicle, repeating the transmission of the checking operation and the power demand signal of the battery 15.

ステップS103では、電力要求信号を受信した車両1bが、自車のバッテリ15の残存容量をチェックする。 In step S103, the vehicle 1b, which has received the power request signal, checks the remaining capacity of the vehicle battery 15. 車両1bは、残存容量が十分である場合にはステップS105においては電力の送電を行い、残存容量に余裕がない場合には、電力要求信号を隣接する車載電源装置20に送信する。 Vehicle 1b performs transmission power in step S105. If the remaining capacity is sufficient, when there is no margin in the remaining capacity is transmitted to the vehicle power supply device 20 adjacent the power demand signal.

ステップS106では、電力要求信号を受信した車載電源装置20が、自車のバッテリ15の残存容量をチェックする。 In step S106, the vehicle power supply device 20 receiving a power request signal, checks the remaining capacity of the vehicle battery 15. 車載電源装置20は、残存容量が十分である場合には信号機45bに電力の送電し、車載電源装置10に供給するほどの電力を有していない場合には、AdHoc通信網で通信可能な範囲には電力を供給することができる車両が存在しない旨を通知する送電不可信号を車両1bに送信する。 Vehicle power supply device 20, the remaining capacity is transmission power to the traffic signal 45b if sufficient, if they do not have power enough to supply the vehicle power supply device 10 communicable range in AdHoc networks to send a transmission disabling signal for notifying that there is no vehicle capable of supplying electric power to the vehicle 1b. 車両1bは車両1aに、次いで、車両1aは車載電源装置10に送電不可信号を送信し、車載電源装置10はステップS110で、送電不可信号を受信する。 The vehicle 1b vehicle 1a, then the vehicle 1a transmits a transmission disable signal to the vehicle power supply device 10, the vehicle-mounted power supply 10 in step S110, receives the transmission disable signal. 電力の送電できる車両がない場合には、今回の電力要求信号に基づく動作は終了する。 If there is no transmission can vehicles power operation ends based on the current power demand signal.

ステップS107では、信号機45bが、車載電源装置20から電力を送電される。 In step S107, the traffic light 45b is transmitting power from the vehicle power supply device 20. 信号機45bは、送電された電力を送電線60を介して信号機45aに送電する。 Traffic 45b is transmitting a traffic signal 45a transmission has been power through the transmission line 60. これにより、車載電源装置10が必要とする電力が車載電源装置10の近傍の道路側機器に送電された。 Accordingly, the power-board power supply 10 requires is power to the road side equipment in the vicinity of the in-vehicle power supply 10.

ステップS108及びステップS109では、信号機45aが、車載電源装置10に電力を供給する。 In step S108 and step S109, the traffic light 45a supplies power to the vehicle power supply device 10. この結果、車載電源装置10は、送信した電力要求信号に基づく電力の供給を受けることができる。 As a result, the in-vehicle power supply apparatus 10 can be supplied with electric power based on the transmitted power demand signal. 車載電源装置10が電力の供給を受けると図6の動作は終了する。 When vehicle power supply device 10 is supplied with power operation of FIG. 6 is terminated.

なお、送電線60や信号機45bなどに電力を蓄えることが可能な蓄電装置を設けておけば、車載電源装置20から信号機45bに送電された電力を、電力の送電効率のよい時に信号機45aや信号機45bから車載電源装置10へ送電できる。 Incidentally, if provided power storage device capable of storing electric power, etc. in the transmission line 60 and traffic signals 45b, vehicle power supply device power transmitted to the traffic light 45b from the 20, traffic lights 45a and traffic at their power transmission efficiency It can power transmission to the in-vehicle power supply 10 from 45b. 逆に、蓄電装置を設けない場合には、整流などを行わずに送電された電力を信号機45bから信号機45aへ送電できるので、設備のコストを低減できる。 Conversely, the case without the power storage device, the power transmitted without such rectification can power from the traffic signal 45b to the traffic signal 45a, can reduce the cost of equipment.

また、送電線60を、ガードレールやセンターラインなどに埋設するなどしてもよい。 Further, the transmission line 60 may be such as to bury the like guardrails or centerline. また、電力やデータ通信を送受信する道路側機器は信号機45aに限られるものではなく、上述したVICS用機器41、交通情報標識42、ETC用機器43、などであってもよい。 The road side apparatus for transmitting and receiving power and data communication is not limited to the traffic lights 45a, VICS equipment 41 described above, the traffic information signs 42, ETC equipment 43, it may be a.

本実施例によれば、相互に電力の供給を行う機会が増大すると共に、送電線60を介して電力の送電を行うので、送電中の電力の損失を低減でき、効率のよい電力の送電が可能となる。 According to this embodiment, mutual with the opportunity to supply the electric power increases, so via the transmission line 60 transmits power of the power, can reduce the power loss in the power transmission, the power transmission efficient power It can become.

以上、これまで説明したように、本実施例は、車両と道路側機器との間、車両と車両の間、で電力の供給が可能となる。 Above, so far described, the present embodiment, between the vehicle and the road side device, between the vehicle and the vehicle, in is possible to supply electric power. 路側電源装置50を有する道路側機器は、既設の道路側機器を利用できるので、低コストに実現可能である。 Road side device having a roadside power supply 50, it is possible to utilize the existing road side equipment can be realized at low cost. 発進や加速に使用する電力の一部を路側電源装置50に依存し、また、回収した回生エネルギのうち余剰の電力を路側電源装置50に送電することで、車両のバッテリ15などパワーユニットの小型軽量化が可能となる。 The portion of the power to be used to start or accelerate depending on roadside power supply 50, also the excess power of the recovered regenerative energy by transmission to the roadside power supply 50, a power unit such as a battery 15 of the vehicle size and weight reduction is possible. また、路側電源装置50及びバッテリ15の残存容量に余裕のある車両が近くになくても、無線データ通信可能な範囲の車両から、車両間で電力の送電ができる。 Moreover, even without the vehicle is close to a margin in the remaining capacity of the roadside power supply 50 and the battery 15, the vehicle wireless data communication possible range, it is the transmission of power between the vehicle. すなわち、自車の電力が不足している場合には、車両外部から電力の供給を受け、自車の電力に余裕がある場合には電力を車両外部に供給することにより、車載バッテリの容量を大きくすることなく、電力エネルギの効率的利用を図ることができる。 That is, when the vehicle power is insufficient, supplied with electric power from the outside of the vehicle, by when the the vehicle power can afford is to supply power to the outside of the vehicle, the capacity of the battery without increasing, it is possible to achieve efficient use of power energy.

相互に電力供給が可能な車両及び路側電源装置により構成された電力供給システムの概略図である。 Another is a schematic diagram of a power supply system configured by the vehicle and the roadside power supply capable of power supply. 本発明の一実施例である電力供給システムに適用される車両の車載装置の機能構成図である。 It is a functional block diagram of a vehicle device of a vehicle which is applied to the power supply system according to an embodiment of the present invention. 実施例2における電力供給システムの概略図である。 It is a schematic diagram of a power supply system in the second embodiment. 車両間で電力の供給を行う動作のアクティビティ図の一例である。 It is an example of the activity diagram of the operation for supplying electric power between the vehicle. 実施例3における電力供給システムの概略図である。 It is a schematic diagram of a power supply system according to the third embodiment. 送電線を介して電力の供給を行う動作のアクティビティ図の一例である。 It is an example of the activity diagram of the operation for supplying electric power through a power line.

符号の説明 DESCRIPTION OF SYMBOLS

10、20 車載電源装置 11、12 アンテナ 13 発振/整流回路 14 制御部 15 バッテリ 16 電動機 24 バッテリ電圧センサ 30 ECU 10,20-vehicle power supply apparatus 11, 12 antenna 13 oscillator / rectifier circuit 14 control unit 15 battery 16 motor 24 battery voltage sensor 30 ECU
41 VICS用機器 42 交通情報標識 43 ETC用機器 50 路側電源装置 41 VICS equipment 42 traffic information signs 43 ETC Equipment 50 roadside power supply

Claims (8)

  1. 蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、車両外部から電力を受電する電力受電手段と、を備えた車載電源装置と、 If the storage amount is equal to or less than a predetermined amount, comprising: a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the outside of the vehicle, a power receiving means for receiving power from the outside of the vehicle, a and in-vehicle power supply,
    前記車載電源装置からの前記電力要求信号を受信する電力要求信号受信手段と、前記電力要求信号を送信した前記車載電源装置に向けて電力を送電する電力送電手段と、を備えた路側電源装置と、 A power demand signal receiving means for receiving the power request signal from the vehicle power supply device, a power transmitting means for transmitting the power toward sent the power demand signal the vehicle power supply device, a roadside power device provided with ,
    を有することを特徴とする電力供給システム。 Power supply system and having a.
  2. 蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、車両外部から電力を受電する電力受電手段と、を備えた第1の車載電源装置と、 If the storage amount is equal to or less than a predetermined amount, comprising: a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the outside of the vehicle, a power receiving means for receiving power from the outside of the vehicle, a a first vehicle electrical system,
    前記第1の車載電源装置からの前記電力要求信号を受信する電力要求信号受信手段と、蓄電量に余裕があるか否かを判断する蓄電量判断手段と、前記蓄電量判断手段による判断の結果に基づき、自車が蓄電している電力を前記第1の車載電源装置に送電する電力送電手段と、を備えた第2の車載電源装置と、 Wherein the power demand signal receiving means for receiving a power request signal, and the storage amount determining means for determining whether there is a margin in the power storage amount, the result of judgment by said storage amount determining means from the first vehicle electrical system a second vehicle power supply device based, and a power transmission means for transmitting the power which the vehicle is accumulated in the first vehicle power supply device,
    を有することを特徴とする電力供給システム。 Power supply system and having a.
  3. 前記電力送電手段は、電力を、電磁波を媒介にして送電することを特徴とする請求項1又は2記載の電力供給システム。 It said power transmission means, power supply system according to claim 1 or 2, characterized in that the power and transmission by electromagnetic waves to mediate.
  4. 蓄電量が所定量以下である場合に、電力の供給を要求する電力要求信号を車両外部に向けて送信する電力要求信号送信手段と、 If the storage amount is equal to or less than the predetermined amount, a power request signal transmitting means for transmitting a power request signal requesting supply of electric power toward the vehicle outside,
    車両外部から電力を受電する電力受電手段と、 A power receiving unit that receives power from the outside of the vehicle,
    を有することを特徴とする車載電源装置。 Vehicle power supply apparatus characterized by having a.
  5. 他車両から送信される、電力の供給を要求する電力要求信号を受信する電力要求信号受信手段と、 Transmitted from another vehicle, and the power demand signal receiving means for receiving a power request signal requesting supply of electric power,
    前記電力要求信号を受信したときに、蓄電量に余裕があるか否かを判断する蓄電量判断手段と、 Upon receiving the power request signal, and the storage amount determining means for determining whether there is a margin in the power storage amount,
    前記蓄電量判断手段による判断の結果に基づき、蓄電している電力を前記電力要求信号を送信した前記他車両に向けて送電する電力送電手段と、 Based on the result of determination by the storage amount determining unit, and a power transmission means for transmitting towards a power that is accumulated in the other vehicle that has transmitted the power demand signal,
    を有することを特徴とする車載電源装置。 Vehicle power supply apparatus characterized by having a.
  6. 前記電力送電手段は、電力を、電磁波を媒介にして他車両に向けて送電することを特徴とする請求項5記載の車載電源装置。 Said power transmission means, power, vehicle power supply device according to claim 5, characterized in that the transmission towards the other vehicle by the electromagnetic wave into a medium.
  7. 車両から送信される電力の供給を要求する電力要求信号を受信する電力要求信号受信手段と、 A power demand signal receiving means for receiving a power request signal requesting the supply of power transmitted from the vehicle,
    前記電力要求信号を送信した前記車両に向けて電力を送電する電力送電手段と、 A power transmitting means for transmitting the power toward the vehicle which has transmitted the power demand signal,
    を有することを特徴とする路側電源装置。 Roadside power supply and having a.
  8. 前記電力送電手段は、電力を、電磁波を媒介にして車両に向けて送電することを特徴とする請求項7記載の路側電源装置。 It said power transmission means, power, roadside power supply device according to claim 7, wherein in the electromagnetic wave-mediated characterized by power transmission toward the vehicle.
JP2004015660A 2004-01-23 2004-01-23 Power supplying system, vehicle power supply and roadside power supply Pending JP2005210843A (en)

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