WO2013094718A1 - Feeding apparatus and communication method - Google Patents

Feeding apparatus and communication method Download PDF

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Publication number
WO2013094718A1
WO2013094718A1 PCT/JP2012/083185 JP2012083185W WO2013094718A1 WO 2013094718 A1 WO2013094718 A1 WO 2013094718A1 JP 2012083185 W JP2012083185 W JP 2012083185W WO 2013094718 A1 WO2013094718 A1 WO 2013094718A1
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WO
WIPO (PCT)
Prior art keywords
power supply
control
communication
signal
line
Prior art date
Application number
PCT/JP2012/083185
Other languages
French (fr)
Japanese (ja)
Inventor
小松　裕
剛志 萩原
遼 岡田
陽介 高田
泉　達也
和彦 二井
Original Assignee
住友電気工業株式会社
住友電装株式会社
株式会社オートネットワーク技術研究所
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Application filed by 住友電気工業株式会社, 住友電装株式会社, 株式会社オートネットワーク技術研究所 filed Critical 住友電気工業株式会社
Publication of WO2013094718A1 publication Critical patent/WO2013094718A1/en

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    • 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
    • H01M10/44—Methods for charging or discharging
    • 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
    • B60L53/66—Data transfer between charging stations and vehicles
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present application relates to a power supply apparatus that communicates with a power supply target by transmitting and receiving a communication signal different from the control signal using a control line that transmits a control signal used for power supply control as a medium when power is supplied to the power supply target, and the power supply
  • the present invention relates to a communication method using an apparatus.
  • the electric vehicle charges the battery by supplying power from an external power supply device.
  • the external power supply device is a power supply device installed in a facility such as a general house or a commercial power supply station. When power is supplied from the power supply device to the vehicle, the plug at the end of the charging cable connected to the power supply device is connected to a power supply port provided in the vehicle as a power receiving connector. Then, power is supplied from the power supply device to the vehicle via the power supply line included in the charging cable, and the battery is charged.
  • the charging cable includes not only the power supply line but also other wiring such as a grounding line and a control line.
  • the control line is a wiring used for transmission of a control signal such as a control pilot signal used for power supply control of the power storage device.
  • Non-Patent Document 1 standardization of communication such as inband communication in which a communication signal is superimposed on a control signal and transmitted and received between the vehicle and the power feeding apparatus is being promoted (see, for example, Non-Patent Document 1).
  • FIG. 5 is an explanatory diagram showing a configuration example of a system that is being standardized.
  • reference numeral 1000 denotes a vehicle, and the vehicle 1000 is connected to the power supply apparatus 2000 via the charging cable 3000 when power is supplied from the power supply apparatus 2000.
  • the charging cable 3000 is a control cable that transmits two power supply lines 3001 and 3002 used as power supply lines, a ground line 3003 that is a grounding conductor, and a control signal such as a control pilot signal (CPLT) used for charge control.
  • CPLT control pilot signal
  • the line 3004 is included.
  • One end of the charging cable 3000 is connected to the power feeding device 2000 side, and a plug 3005 provided on the other end side is connected to a power receiving connector 1001 provided as a connecting portion at a power feeding port on the vehicle 1000 side. Power supply is possible.
  • the power supply apparatus 2000 includes a power supply unit 2001 that supplies AC power, a charge control unit 2002 that performs communication related to charge control, a communication unit 2003 that transmits and receives communication signals, and a ground line 3003 and a control line 3004. And a superposition / separation unit 2004 that superimposes and separates communication signals.
  • the superposition / separation unit 2004 superimposes various communication signals on the ground line 3003 and the control line 3004 and separates the various communication signals superimposed.
  • the superimposing / separating unit 2004 superimposes various communication signals output from the communication unit 2003, and inputs the separated various communication signals to the communication unit 2003, whereby communication of the communication unit 2003 is performed.
  • the vehicle 1000 includes a power receiving connector 1001, a battery 1002, a charging device 1003 that charges the battery 1002, a charging control device 1004 that performs communication related to charging control, a communication device 1005 that transmits and receives communication signals, and a ground line. 3003 and a superimposition separator 1006 that superimposes and separates communication signals on the control line 3004.
  • the superimposition separator 1006 superimposes various communication signals on the ground line 3003 and the control line 3004, and separates the various communication signals superimposed.
  • the superimposing / separating device 1006 superimposes various communication signals output from the communication device 1005, and inputs the separated various communication signals to the communication device 1005, whereby communication of the communication device 1005 is performed.
  • the present invention has been made in view of such circumstances, and by providing a plurality of control lines that can be connected to a power supply target such as a vehicle, charging and communication for a plurality of power supply targets are performed. Therefore, it is an object of the present invention to provide a power supply apparatus and a communication method capable of improving the efficiency of processing such as charging and communication at the time of charging.
  • the power supply apparatus communicates with the power supply target by transmitting and receiving a communication signal different from the control signal using a control line for transmitting a control signal used for power supply control as a medium when power is supplied to an external power supply target.
  • the power supply apparatus includes a plurality of control lines that can be connected to different power supply targets, and a communication unit that is connected to the plurality of control lines and transmits and receives a communication signal designating a communication partner.
  • the power supply apparatus transmits and receives a communication signal different from the control signal, using a control line for transmitting a control signal used for power supply control as a medium when supplying power using a power supply line for an external power supply target.
  • a plurality of power supply lines and control lines that can be connected to different power supply targets, a plurality of branch lines that respectively branch from the plurality of control lines, and a communication partner are designated
  • the superposition / separation unit includes a primary coil connected to the plurality of branch lines, and a secondary coil electromagnetically coupled to the primary coil and connected to the communication unit.
  • the power supply device further includes a low-frequency cutoff unit that is interposed in the plurality of branch lines and blocks a signal in a band used for the control signal.
  • the power supply device is connected to each of the plurality of control lines, and is interposed between the plurality of charge control units that transmit / receive control signals, and the plurality of control lines, and a branch position of the branch line And a high frequency cutoff unit located between the charge control units and blocking a signal in a band used for the communication signal.
  • the communication method connects a power feeding device and a vehicle fed from the power feeding device by a power feeding line used for power feeding and a control line for transmitting a control signal used for power feeding control.
  • the power supply device is the power supply device described above, and the vehicle designates itself It communicates with the said electric power feeder based on the transmitted communication signal.
  • a plurality of wirings such as control lines can be provided, and communication with a plurality of power feeding targets using the control line as a medium can be performed simultaneously.
  • There are excellent effects such as efficient processing of power supply to the power supply target and communication during power supply.
  • a low-frequency cutoff unit such as a high-pass filter between the control line and the communication unit, it is possible to suppress the rounding of the waveform of the control signal and suppress the occurrence of malfunction. It has excellent effects such as.
  • a high-frequency cutoff unit such as a low-pass filter in the path leading to the charging control device, it is possible to prevent malfunction due to leakage of a communication signal to the charging control device side. Has an effect.
  • FIG. 1 is an explanatory diagram illustrating a configuration example related to the power feeding device according to the first embodiment of the present invention.
  • FIG. 1 shows an example in which the power supply device according to the present invention is applied to a mode in which a battery (power storage device) 10 provided in a vehicle 1 such as an electric vehicle or a plug-in hybrid vehicle is supplied from a power supply device 2 such as a charging stand. Show.
  • a mode in which power is supplied to two vehicles 1, 1 is illustrated, but the present invention may be applied to a mode in which power is supplied to three or more vehicles 1, 1,.
  • the two vehicles 1 and 1 are distinguished as a first vehicle 1a and a second vehicle 1b as necessary. The same distinction is made for the charging cable described later.
  • the vehicle 1 and the power feeding device 2 can be connected by a charging cable 3.
  • the charging cable 3 includes a pair of power supply lines 31 used as power supply lines and a control line 32 that transmits a control signal such as a control pilot signal (CPLT) used for charge control.
  • CPLT control pilot signal
  • the charging cable 3 includes not only the pair of power supply lines 31 and the control line 32 but also other wiring such as a grounding line to be described later.
  • One end of the charging cable 3 is connected to the power feeding device 2 side, and the plug 30 provided on the other end side is connected to the power receiving connector 11 arranged as an in-vehicle power feeding port serving as a connection part on the vehicle 1 side. be able to.
  • the plug 30 at the other end of the charging cable 3 is connected to the power receiving connector 11, the configuration illustrated in FIG. 1 is obtained, and power feeding from the power feeding device 2 to the vehicle 1 becomes possible.
  • FIG. 1 illustrates a configuration in which the power supply device 3 is connected to the first vehicle 1a and the second vehicle 1b using two charging cables 3a and 3b.
  • the first charging cable 3a connected to the first vehicle 1a includes wires such as a first pair of power supply lines 31a and a first control line 32a, and includes a first plug 30a.
  • the second charging cable 3b connected to the second vehicle 1b includes wiring such as a second pair of power supply lines 31b and a second control line 32b, and includes a second plug 30b. Yes.
  • the pair of power supply lines 31 are AC lines (AC_L, AC_N) to which an AC voltage is applied.
  • the control line 32 is a signal line for transmitting / receiving a control signal such as a control pilot signal. Control for charging the battery 10 of the vehicle 1 is performed based on a control pilot signal transmitted and received when the power feeding device 2 and the vehicle 1 are connected.
  • the control line 32 can also be used as a medium for transmitting information for performing management such as vehicle authentication, charging management, charging management, and other various information. That is, the vehicle 1 and the power feeding device 2 can perform communication by superimposing and separating the communication signal on the control line 32.
  • the power supply device 2 of the present invention can supply power to the first vehicle 1a and the second vehicle 1b at the same time, and communicates simultaneously with the first vehicle 1a and the second vehicle 1b during power supply. Is possible.
  • the power supply device 2 includes a first power supply unit 20a that supplies AC power, and a first charge control unit 21a that is used for charge control, with the first vehicle 1a connected by the first charging cable 3a as a power supply target. I have.
  • the power feeding device 2 uses the second vehicle 1b connected by the second charging cable 3b as a power feeding target, a second power supply unit 20b that supplies AC power, and a second charging control unit 21b that is used for charging control.
  • the power supply apparatus 2 includes a single communication unit 22 that transmits and receives communication signals using the first control line 32a and the second control line 32b as media.
  • first power supply line 31a is connected to the first power supply unit 20a, and one end of a first control line 32a is connected to the first charge control unit 21a.
  • second power supply line 31b is connected to the second power supply unit 20b, and one end of a second control line 32b is connected to the second charge control unit 21b.
  • the wiring in the power supply apparatus 2 is an internal conductor that functions as an extension line connected to the power supply lines 31a and 31b included in the charging cables 3a and 3b outside the power supply apparatus 2 and the control lines 32a and 32b.
  • the power supply lines 31a and 31b and the control lines 32a and 32b will be described including the extended line portion disposed as the internal conductor.
  • the first charge control unit 21a and the second charge control unit 21b are, for example, output-side circuits compliant with international standards related to charge control. By transmitting and receiving control signals such as control pilot signals, connection confirmation and start of energization are performed. The charging control is performed in various states.
  • the vehicle 1 includes a charging device 12 that charges the battery 10, a charging control device 13 that performs communication related to charging control, and a communication device 14 that transmits and receives communication signals. Yes.
  • an internal wiring (not shown) connected to the pair of power supply lines 31 and the control line 32 is provided in the power receiving connector 11.
  • the other end of the internal wiring connected to the power supply line 31 is connected to the charging device 12 via an AC line disposed inside the vehicle 1, and the battery 10 is charged by the charging device 12.
  • the other end of the internal wiring connected to the control line 32 is connected to the charging control device 13 via an extension line disposed as an internal wiring in the vehicle 1.
  • the internal wiring, the AC line, and the extension line will be described as the power supply line 31 and the control line 32.
  • control line 32 is provided with a branch line that branches from the middle, and the branch line is connected to the communication device 14.
  • the charge control device 13 is, for example, an input-side circuit that conforms to an international standard related to charge control, and is controlled when communication with the first charge control unit 21a or the second charge control unit 21b of the power supply device 2 becomes possible. By transmitting and receiving control signals such as pilot signals, charging control in various states such as connection confirmation and communication start is performed.
  • FIG. 2 is a block diagram showing a configuration example relating to the power feeding device 2 according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing in more detail the configuration of a circuit and the like related to communication by transmission / reception of communication signals in the configuration example shown in FIG.
  • the charging cable 3 includes a ground line 33, and the control line 32 and the ground line 33 are used for communication by transmission and reception of communication signals.
  • the first charging cable 3a includes the first grounding wire 33a and the second charging cable 3b includes the second grounding wire 33b as necessary.
  • the internal wiring connected to the grounding wire 33 in the power feeding device 2 and the vehicle 1 will also be described as grounding wires 33 (33a, 33b).
  • the first control line 32a is connected to the first charge control unit 21a
  • the second control line 32b is connected to the second charge control unit 21b.
  • the first charge control unit 21a includes various elements such as a capacitor and a resistor, and various circuits such as an oscillation circuit. Parameters of various elements such as a capacitor and a resistor are appropriately designed in consideration of a band related to a control signal to be transmitted / received. For example, when a control pilot signal using a rectangular wave of 1 kHz is used as a control signal, a 2.2 nF capacitor and a 1.0 k ⁇ resistor are used. The same applies to the second charge control unit 21b.
  • each branch line is connected with a superposition of communication signals. It is connected to the communication unit 22 via a superposition / separation unit 23 that performs separation.
  • a coupling capacitor 24a and a high-pass filter 26a are interposed in series on a branch line branched from the first control line 32a.
  • a coupling capacitor 24b and a high-pass filter 26b are interposed in series on a branch line branched from the second control line 32b.
  • the coupling capacitors 24a and 24b for example, capacitors having a capacitance of 1 nF are used.
  • the high-pass filters 26a and 26b are configured as elements or circuits such as a capacitor, a capacitor and a series circuit of a coil, function as a low-frequency cutoff unit that cuts off a low-frequency band signal used for a control signal, and a communication signal The signal of the high frequency band used for is passed.
  • a frequency band used for a communication signal a band of several tens of kHz to several hundreds of kHz, for example, 30 kHz to 450 kHz is used as a band for low-speed communication.
  • the superimposing / separating unit 23 includes a primary coil 231 connected to the first control line 32a and the second control line 32b via each branch line, and a secondary coil 232 electromagnetically coupled to the primary coil 231.
  • a circuit such as a coupling transformer (electromagnetic induction signal converter).
  • One end of the primary coil 231 provided in the superposition / separation unit 23 is connected to each branch line, and the other end is grounded via a coupling capacitor 25.
  • the secondary coil 232 included in the superposition / separation unit 23 is connected to the communication unit 22.
  • the coupling capacitor 25 for example, a capacitor having a capacitance of 1 nF is used.
  • the superposition / separation unit 23 configured in this manner superimposes various communication signals on the first control line 32a and the second control line 32b and separates the various communication signals superimposed.
  • the superimposing / separating unit 23 superimposes various communication signals output from the communication unit 22, and inputs the separated various communication signals to the communication unit 22, whereby communication of the communication unit 22 is performed.
  • one communication unit 22 performs communication by superimposing and separating communication signals on the plurality of control lines 32 and 32 via the superposition / separation unit 23. Accordingly, the capacitance of the control lines 32 and 32, the branch lines, and the like, and the capacitance of the coupling capacitors 24a and 24b increase the overall capacitance. , 32 and the ground line 33 are also increased. For this reason, the rise time of the control signal is delayed and the waveform is smoothed. The rounding of the waveform may cause erroneous determination of duty during charge control.
  • the high-pass filters 26a and 26b have a function of preventing such waveform rounding and preventing malfunction due to erroneous determination. Further, by blocking the control signal and allowing the communication signal to pass through the high-pass filters 26a and 26b, noise based on a signal such as a transmitted control signal is caused to other devices such as peripheral devices and other wirings. Mixing is prevented, and noise from other systems is prevented.
  • the coupling capacitors 24a and 24b and the high-pass filters 26a and 26b are described as different elements or circuits.
  • the coupling capacitor 24a and the high-pass filter 26a are formed as one element or circuit. It is possible to design as appropriate.
  • the charging control device 13 is connected to the control line 32. Further, the charging control device 13 is connected to the ground line 33 via a vehicle body ground (body earth) or directly.
  • the charging control device 13 includes various elements such as a capacitor, a resistor, and a diode. Parameters of various elements such as a capacitor and a resistor are appropriately designed in consideration of a band related to a control signal to be transmitted / received. For example, when a control pilot signal using a rectangular wave of 1 kHz is used as a control signal, a 1.8 nF capacitor and a 2.74 k ⁇ resistor are used.
  • the control line 32 and the ground line 33 are provided with a branch line that branches from the middle, and the branch line is connected to the communication device 14 via the superposition separator 15.
  • a coupling capacitor 16 is interposed in the branch line from the control line 32, and a coupling capacitor 17 is interposed in the branch line from the ground line 33.
  • the coupling capacitors 16 and 17, for example, capacitors having a capacitance of 1 nF are used.
  • the superposition separator 15 is a circuit such as a coupling transformer including a primary coil and a secondary coil that are electromagnetically coupled.
  • the primary coil is connected to the control line 32 and the ground line 33 via a branch line, and the secondary coil is connected to the communication device 14.
  • the superposition separator 15 configured as described above superimposes various communication signals on the control line 32 and separates the various communication signals superimposed.
  • the superimposing / separating device 15 superimposes various communication signals output from the communication device 14 and inputs the separated various communication signals to the communication device 14 so that the communication device 14 communicates.
  • a loop circuit for transmitting a communication signal is formed by the superimposing separator 15, the control line 32, the ground line 33, the superimposing / separating unit 23, and other wirings, elements, and circuits.
  • the inband communication which superimposes a communication signal by using the control line 32 as a medium between the communication device 14 in the vehicle 1 and the communication unit 22 of the power feeding device 2 can be realized.
  • the communication signal is transmitted and received as a packet for each predetermined data length set in advance.
  • a packet to be transmitted / received has a header portion and a data portion, and various information such as identification information indicating a transmission destination and identification information indicating a transmission source is shown in the header portion.
  • identification information for example, information such as a MAC address for identifying a device related to communication is used. That is, the communication unit 22 of the power supply device 2 can transmit and receive a communication signal specifying a communication partner by using the MAC address of the communication device 14 included in the vehicle 1 as identification information indicating a transmission destination.
  • the vehicle 1 determines whether or not the communication signal is a communication signal addressed to the own device based on identification information such as a MAC address specified as a communication partner in the packet related to the received communication signal. When it is determined that the communication signal is addressed to the own apparatus, processing based on the communication signal related to the packet is performed. When it is determined that the communication signal is not addressed to the own apparatus, the packet is discarded. That is, the vehicle 1 communicates with the communication unit 22 included in the power feeding device 2 based on a communication signal that designates the vehicle 1 by the communication device 14.
  • the power feeding device 2 communicates simultaneously with a plurality of vehicles 1 and 1 by performing communication by transmission and reception of communication signals based on identification information indicated in the packets related to communication signals. It can be performed. And since the electric power feeder 2 which concerns on this invention can perform electric power feeding, electric power feeding control, and communication with respect to the several vehicles 1 and 1 simultaneously, it can improve processes, such as electric power feeding.
  • FIG. The second embodiment is a form in which a low-pass filter is provided on the control line in the first embodiment.
  • the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the first embodiment is referred to and detailed description thereof is omitted.
  • FIG. 3 is a block diagram illustrating a configuration example relating to the power feeding device 2 according to Embodiment 2 of the present invention.
  • a low-pass filter 27a is interposed in the first control line 32a in the power feeding device 2 according to the second embodiment.
  • the low pass filter 27a is located between the branch position of the branch line and the first charging control unit 21a.
  • a low-pass filter 27b is interposed in the second control line 32b.
  • the low pass filter 27b is located between the branch position of the branch line and the second charging control unit 21b.
  • the low-pass filter 18 is interposed in the control line 32.
  • the low-pass filter 18 in the vehicle 1 is located between the branch position of the branch line and the charging control device 13.
  • the low-pass filters 27a, 27b, and 18 function as a high-frequency cutoff unit that cuts off a signal in a high-frequency band used for a communication signal, and allows a low-frequency band signal used for a control signal to pass therethrough.
  • FIG. 4 is a circuit diagram showing a configuration example of the low-pass filters 27a and 27b used in the power feeding device 2 according to Embodiment 2 of the present invention.
  • the low-pass filters (LPF) 27a and 27b are configured as, for example, a circuit in which a coil having an inductance of 1.5 mH and a 1.0 k ⁇ resistor are arranged in parallel, or an equivalent circuit thereof. Note that another circuit may be used as long as similar characteristics can be obtained.
  • the low pass filter 18 used in the vehicle 1 is also configured as a similar circuit or an equivalent circuit thereof.
  • the second embodiment by providing a high-frequency cutoff unit such as the low-pass filters 27a and 27b in the power feeding device 2, it is possible to prevent malfunction due to leakage of a communication signal to the charge control unit side. .
  • the first and second embodiments only disclose a part of the myriad examples of the present invention, and can be appropriately designed in consideration of various factors such as purpose, application, and specifications. .
  • one communication unit can communicate with two vehicles simultaneously.
  • the present invention is not limited to this, and communication with three or more vehicles is performed. May be.
  • the number of vehicles that can further communicate may be increased.

Abstract

A feeding apparatus (2) comprises: a plurality of control lines (32, 32) that can be connected to the respective ones of different vehicles (1, 1); a plurality of branch lines that branch from the respective ones of the plurality of control lines (32, 32); a communication unit (22) that transmits/receives communication signals for each of which the other end of communication has been designated; and a superimposing/separating unit (23) that superimposes/separates the communication signals, which are transmitted/received by the communication unit (22), for the control lines (32, 32) connected to the superimposing/separating unit (23) via the respective branch lines.

Description

給電装置及び通信方法Power supply apparatus and communication method
　本願は、給電対象に対する給電に際し、給電制御に用いる制御信号を伝送する制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電対象と通信する給電装置、及び該給電装置を用いた通信方法に関する。 The present application relates to a power supply apparatus that communicates with a power supply target by transmitting and receiving a communication signal different from the control signal using a control line that transmits a control signal used for power supply control as a medium when power is supplied to the power supply target, and the power supply The present invention relates to a communication method using an apparatus.
　近年、モータ及びバッテリ等の装置を搭載し、バッテリに蓄積した電力にてモータを駆動することで走行する電気自動車及びハイブリッド自動車が普及し始めている。電気自動車は外部の給電装置からの給電によりバッテリに対する充電を行う。また、ハイブリッド自動車であっても、外部の給電装置からバッテリへの充電を可能としたプラグインハイブリッド自動車が実用化されている。なお、外部の給電装置とは、一般家屋、商用の給電ステーション等の施設に設置された給電装置である。給電装置から車両への給電に際しては、給電装置に接続されている充電ケーブルの先端のプラグを、受電コネクタとして車両に配設された給電口に接続する。そして、充電ケーブルに内包された給電線を介して給電装置から車両への給電が行われ、バッテリが充電される。 In recent years, electric vehicles and hybrid vehicles that are equipped with devices such as a motor and a battery and run by driving the motor with the electric power stored in the battery have begun to spread. The electric vehicle charges the battery by supplying power from an external power supply device. Moreover, even if it is a hybrid vehicle, a plug-in hybrid vehicle that can charge a battery from an external power supply device has been put into practical use. The external power supply device is a power supply device installed in a facility such as a general house or a commercial power supply station. When power is supplied from the power supply device to the vehicle, the plug at the end of the charging cable connected to the power supply device is connected to a power supply port provided in the vehicle as a power receiving connector. Then, power is supplied from the power supply device to the vehicle via the power supply line included in the charging cable, and the battery is charged.
　なお、充電ケーブルには、給電線だけでなく、接地線、制御用線等の他の配線も内包されている。制御用線とは、蓄電装置の給電制御に用いるコントロールパイロット信号等の制御信号の伝送に用いられる配線である。制御用線を介して、制御信号を給電装置及び車両間で送受信することにより、充電ケーブルの接続状態、充電可否の状態、充電の状態等の様々な状態を検知し、検知した状態に応じた充電制御が行われる。 In addition, the charging cable includes not only the power supply line but also other wiring such as a grounding line and a control line. The control line is a wiring used for transmission of a control signal such as a control pilot signal used for power supply control of the power storage device. By transmitting and receiving a control signal between the power feeding device and the vehicle via the control line, various states such as the connection state of the charging cable, the state of chargeability, the state of charge, etc. are detected, and according to the detected state Charging control is performed.
　さらに、電気自動車、ハイブリッド自動車等の外部からの給電を要する自動車の実用化に際しては、給電制御のための情報、及び、給電量又は課金の管理等を行うための通信情報を、車両及び給電装置の間で送受信する通信機能が求められる。 Furthermore, when commercializing an automobile that requires power supply from the outside, such as an electric vehicle or a hybrid vehicle, information for power supply control and communication information for performing management of power supply amount or billing, etc. A communication function for transmitting and receiving data is required.
　そこで、制御信号に通信信号を重畳して、車両及び給電装置間で送受信するinband通信等の通信の規格化が進められている（例えば、非特許文献１参照。）。 Therefore, standardization of communication such as inband communication in which a communication signal is superimposed on a control signal and transmitted and received between the vehicle and the power feeding apparatus is being promoted (see, for example, Non-Patent Document 1).
　図５は、規格化が進められているシステムの構成例を示す説明図である。図５中１０００は、車両であり、車両１０００は、給電装置２０００から給電を行う場合に、充電ケーブル３０００にて給電装置２０００と接続される。充電ケーブル３０００は、電力供給線として用いられる２本の給電線３００１、３００２、接地用の導線である接地線３００３、及び充電制御に用いるコントロールパイロット信号（ＣＰＬＴ）等の制御信号を伝送する制御用線３００４を内包している。 FIG. 5 is an explanatory diagram showing a configuration example of a system that is being standardized. In FIG. 5, reference numeral 1000 denotes a vehicle, and the vehicle 1000 is connected to the power supply apparatus 2000 via the charging cable 3000 when power is supplied from the power supply apparatus 2000. The charging cable 3000 is a control cable that transmits two power supply lines 3001 and 3002 used as power supply lines, a ground line 3003 that is a grounding conductor, and a control signal such as a control pilot signal (CPLT) used for charge control. The line 3004 is included.
　充電ケーブル３０００の一端は、給電装置２０００側に接続されており、他端側に設けられたプラグ３００５を車両１０００側の給電口に接続部として配設されている受電コネクタ１００１に接続することにより、給電が可能となる。 One end of the charging cable 3000 is connected to the power feeding device 2000 side, and a plug 3005 provided on the other end side is connected to a power receiving connector 1001 provided as a connecting portion at a power feeding port on the vehicle 1000 side. Power supply is possible.
　給電装置２０００は、交流電力を供給する電力供給部２００１と、充電制御に係る通信を行う充電制御部２００２と、通信信号の送受信を行う通信部２００３と、接地線３００３及び制御用線３００４に対して通信信号の重畳及び分離を行う重畳分離部２００４とを備えている。 The power supply apparatus 2000 includes a power supply unit 2001 that supplies AC power, a charge control unit 2002 that performs communication related to charge control, a communication unit 2003 that transmits and receives communication signals, and a ground line 3003 and a control line 3004. And a superposition / separation unit 2004 that superimposes and separates communication signals.
　そして、重畳分離部２００４は、接地線３００３及び制御用線３００４に対して各種通信信号を重畳し、また、重畳された各種通信信号を分離する。重畳分離部２００４が、通信部２００３から出力される各種通信信号を重畳し、また、分離した各種通信信号を通信部２００３に入力することで、通信部２００３の通信が行われる。 Then, the superposition / separation unit 2004 superimposes various communication signals on the ground line 3003 and the control line 3004 and separates the various communication signals superimposed. The superimposing / separating unit 2004 superimposes various communication signals output from the communication unit 2003, and inputs the separated various communication signals to the communication unit 2003, whereby communication of the communication unit 2003 is performed.
　車両１０００は、受電コネクタ１００１と、バッテリ１００２と、バッテリ１００２に対する充電を行う充電装置１００３と、充電制御に係る通信を行う充電制御装置１００４と、通信信号の送受信を行う通信装置１００５と、接地線３００３及び制御用線３００４に対して通信信号の重畳及び分離を行う重畳分離器１００６とを備えている。 The vehicle 1000 includes a power receiving connector 1001, a battery 1002, a charging device 1003 that charges the battery 1002, a charging control device 1004 that performs communication related to charging control, a communication device 1005 that transmits and receives communication signals, and a ground line. 3003 and a superimposition separator 1006 that superimposes and separates communication signals on the control line 3004.
　そして、重畳分離器１００６は接地線３００３及び制御用線３００４に対して各種通信信号を重畳し、また、重畳された各種通信信号を分離する。重畳分離器１００６が、通信装置１００５から出力される各種通信信号を重畳し、また、分離した各種通信信号を通信装置１００５に入力することで、通信装置１００５の通信が行われる。 The superimposition separator 1006 superimposes various communication signals on the ground line 3003 and the control line 3004, and separates the various communication signals superimposed. The superimposing / separating device 1006 superimposes various communication signals output from the communication device 1005, and inputs the separated various communication signals to the communication device 1005, whereby communication of the communication device 1005 is performed.
　しかしながら、充電を必要とする車両の増加に伴い、充電、充電時の通信等の処理の効率化が求められるようになる。 However, as the number of vehicles that require charging increases, more efficient processing such as charging and communication at the time of charging is required.
　本発明は斯かる事情に鑑みて成されたものであり、車両等の給電対象に接続することが可能な制御用線を複数設けることにより、複数の給電対象に対し、充電及び充電に際しての通信を同時にすることができるので、充電、充電時の通信等の処理を効率化をすることが可能な給電装置及び通信方法の提供を目的とする。 The present invention has been made in view of such circumstances, and by providing a plurality of control lines that can be connected to a power supply target such as a vehicle, charging and communication for a plurality of power supply targets are performed. Therefore, it is an object of the present invention to provide a power supply apparatus and a communication method capable of improving the efficiency of processing such as charging and communication at the time of charging.
　本発明に係る給電装置は、外部の給電対象に対する給電に際し、給電制御に用いる制御信号を伝送する制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電対象と通信する給電装置において、夫々異なる給電対象に接続することが可能な複数の制御用線と、複数の制御用線に接続し、通信相手を指定した通信信号を送受信する通信部とを備えることを特徴とする。 The power supply apparatus according to the present invention communicates with the power supply target by transmitting and receiving a communication signal different from the control signal using a control line for transmitting a control signal used for power supply control as a medium when power is supplied to an external power supply target. The power supply apparatus includes a plurality of control lines that can be connected to different power supply targets, and a communication unit that is connected to the plurality of control lines and transmits and receives a communication signal designating a communication partner. And
　本発明に係る給電装置は、外部の給電対象に対する給電線を用いた給電に際し、給電制御に用いる制御信号を伝送する制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電対象と通信する給電装置において、夫々異なる給電対象に接続することが可能な複数の給電線及び制御用線と、複数の制御用線から夫々分岐する複数の分岐線と、通信相手を指定した通信信号を送受信する通信部と、該通信部にて送信／受信される通信信号を、前記分岐線を介して接続する前記制御用線に対し重畳／分離する重畳分離部とを備え、該重畳分離部は、前記複数の分岐線に接続する一次コイルと、該一次コイルと電磁的に結合し、前記通信部に接続する二次コイルとを有することを特徴とする。 The power supply apparatus according to the present invention transmits and receives a communication signal different from the control signal, using a control line for transmitting a control signal used for power supply control as a medium when supplying power using a power supply line for an external power supply target. In the power supply apparatus that communicates with the power supply target, a plurality of power supply lines and control lines that can be connected to different power supply targets, a plurality of branch lines that respectively branch from the plurality of control lines, and a communication partner are designated A communication unit that transmits and receives the communication signal, and a superposition / separation unit that superimposes / separates the communication signal transmitted / received by the communication unit with respect to the control line connected via the branch line, The superposition / separation unit includes a primary coil connected to the plurality of branch lines, and a secondary coil electromagnetically coupled to the primary coil and connected to the communication unit.
　本発明に係る給電装置は、前記複数の分岐線に介装され、前記制御信号に用いられる帯域の信号を遮断する低域遮断部を更に備えることを特徴とする。 The power supply device according to the present invention further includes a low-frequency cutoff unit that is interposed in the plurality of branch lines and blocks a signal in a band used for the control signal.
　本発明に係る給電装置は、前記複数の制御用線に夫々接続され、制御信号を送信／受信する複数の充電制御部と、前記複数の制御用線に介装され、前記分岐線の分岐位置及び前記充電制御部間に位置し、前記通信信号に用いられる帯域の信号を遮断する高域遮断部とを更に備えることを特徴とする。 The power supply device according to the present invention is connected to each of the plurality of control lines, and is interposed between the plurality of charge control units that transmit / receive control signals, and the plurality of control lines, and a branch position of the branch line And a high frequency cutoff unit located between the charge control units and blocking a signal in a band used for the communication signal.
　本発明に係る通信方法は、給電装置と、該給電装置から給電される車両とを、給電に用いる給電線、及び給電制御に用いる制御信号を伝送する制御用線にて接続し、前記制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電装置及び車両間で通信する通信方法において、前記給電装置は、前述の給電装置であり、前記車両は、自らを指定した通信信号に基づいて前記給電装置と通信することを特徴とする。 The communication method according to the present invention connects a power feeding device and a vehicle fed from the power feeding device by a power feeding line used for power feeding and a control line for transmitting a control signal used for power feeding control. In a communication method of communicating between the power supply device and the vehicle by transmitting and receiving a communication signal different from the control signal using a line as a medium, the power supply device is the power supply device described above, and the vehicle designates itself It communicates with the said electric power feeder based on the transmitted communication signal.
　本発明では、給電に際し、複数の給電対象に対して制御用線を媒体とする通信を同時に行うことが可能である。 In the present invention, it is possible to simultaneously perform communication using a control line as a medium for a plurality of power supply targets during power supply.
　本発明に係る給電装置及び通信方法では、制御用線等の配線を複数設け、制御用線を媒体とする複数の給電対象との通信を同時にすることができるので、inband通信を行う車両等の給電対象に対する給電、給電時の通信等の処理を効率的に行うことが可能である等、優れた効果を奏する。 In the power feeding device and the communication method according to the present invention, a plurality of wirings such as control lines can be provided, and communication with a plurality of power feeding targets using the control line as a medium can be performed simultaneously. There are excellent effects such as efficient processing of power supply to the power supply target and communication during power supply.
　また、本発明では、制御用線と通信部との間にハイパスフィルタ等の低域遮断部を設けることにより、制御信号の波形のなまりを抑制し、誤動作の発生を抑制することが可能である等の優れた効果を奏する。 Further, in the present invention, by providing a low-frequency cutoff unit such as a high-pass filter between the control line and the communication unit, it is possible to suppress the rounding of the waveform of the control signal and suppress the occurrence of malfunction. It has excellent effects such as.
　さらに、本発明では、充電制御装置へ通じる経路にローパスフィルタ等の高域遮断部を設けることにより、通信信号が充電制御装置側へ漏出することによる誤動作を防止することが可能である等の優れた効果を奏する。 Furthermore, in the present invention, by providing a high-frequency cutoff unit such as a low-pass filter in the path leading to the charging control device, it is possible to prevent malfunction due to leakage of a communication signal to the charging control device side. Has an effect.
本発明の実施の形態１に係る給電装置に関する構成例を示す説明図である。It is explanatory drawing which shows the structural example regarding the electric power feeder which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る給電装置に関する構成例を示すブロック図である。It is a block diagram which shows the structural example regarding the electric power feeder which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る給電装置に関する構成例を示すブロック図である。It is a block diagram which shows the structural example regarding the electric power feeder which concerns on Embodiment 2 of this invention. 本発明の実施の形態２に係る給電装置にて用いられるローパスフィルタの構成例を示す回路図である。It is a circuit diagram which shows the structural example of the low pass filter used with the electric power feeder which concerns on Embodiment 2 of this invention. 規格化が進められているシステムの構成例を示す説明図である。It is explanatory drawing which shows the structural example of the system in which standardization is advanced.
　以下、本発明をその実施の形態を示す図面に基づいて詳述する。 Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
実施の形態１．
　図１は、本発明の実施の形態１に係る給電装置に関する構成例を示す説明図である。図１は、本発明の給電装置にて、電気自動車、プラグインハイブリッド車等の車両１が備えるバッテリ（蓄電装置）１０に対し、充電スタンド等の給電装置２から給電する形態に適用する例を示している。図１では、２台の車両１、１に給電する形態を例示しているが、３台以上の車両１、１、…に給電する形態に適用するようにしても良い。なお、以降の説明においては、説明の都合上、必要に応じて、２台の車両１、１を、第１の車両１ａ及び第２の車両１ｂとして区別する。後述する充電ケーブルについても同様の区別を行う。 Embodiment 1 FIG.
FIG. 1 is an explanatory diagram illustrating a configuration example related to the power feeding device according to the first embodiment of the present invention. FIG. 1 shows an example in which the power supply device according to the present invention is applied to a mode in which a battery (power storage device) 10 provided in a vehicle 1 such as an electric vehicle or a plug-in hybrid vehicle is supplied from a power supply device 2 such as a charging stand. Show. In FIG. 1, a mode in which power is supplied to two vehicles 1, 1 is illustrated, but the present invention may be applied to a mode in which power is supplied to three or more vehicles 1, 1,. In the following description, for convenience of description, the two vehicles 1 and 1 are distinguished as a first vehicle 1a and a second vehicle 1b as necessary. The same distinction is made for the charging cable described later.
　車両１及び給電装置２の間は、充電ケーブル３により接続することが可能である。充電ケーブル３は、電力供給線として用いられる一対の給電線３１及び充電制御に用いるコントロールパイロット信号（ＣＰＬＴ）等の制御信号を伝送する制御用線３２を内包している。なお、充電ケーブル３は、一対の給電線３１及び制御用線３２だけでなく、後述する接地線等の他の配線も内包している。 The vehicle 1 and the power feeding device 2 can be connected by a charging cable 3. The charging cable 3 includes a pair of power supply lines 31 used as power supply lines and a control line 32 that transmits a control signal such as a control pilot signal (CPLT) used for charge control. Note that the charging cable 3 includes not only the pair of power supply lines 31 and the control line 32 but also other wiring such as a grounding line to be described later.
　充電ケーブル３の一端は、給電装置２側に接続されており、他端側に設けられたプラグ３０を車両１側の接続部位となる車載給電口として配設されている受電コネクタ１１に接続することができる。充電ケーブル３の他端のプラグ３０を受電コネクタ１１に接続することにより、図１に例示する構成となり、給電装置２から車両１への給電が可能となる。 One end of the charging cable 3 is connected to the power feeding device 2 side, and the plug 30 provided on the other end side is connected to the power receiving connector 11 arranged as an in-vehicle power feeding port serving as a connection part on the vehicle 1 side. be able to. By connecting the plug 30 at the other end of the charging cable 3 to the power receiving connector 11, the configuration illustrated in FIG. 1 is obtained, and power feeding from the power feeding device 2 to the vehicle 1 becomes possible.
　図１では、２本の充電ケーブル３ａ、３ｂを用いて、給電装置３と第１の車両１ａ及び第２の車両１ｂとを接続した形態を例示している。第１の車両１ａと接続される第１の充電ケーブル３ａは、第１の一対の給電線３１ａ、第１の制御用線３２ａ等の配線を内包し、第１のプラグ３０ａを備えている。また、第２の車両１ｂと接続される第２の充電ケーブル３ｂは、第２の一対の給電線３１ｂ、第２の制御用線３２ｂ等の配線を内包し、第２のプラグ３０ｂを備えている。 FIG. 1 illustrates a configuration in which the power supply device 3 is connected to the first vehicle 1a and the second vehicle 1b using two charging cables 3a and 3b. The first charging cable 3a connected to the first vehicle 1a includes wires such as a first pair of power supply lines 31a and a first control line 32a, and includes a first plug 30a. The second charging cable 3b connected to the second vehicle 1b includes wiring such as a second pair of power supply lines 31b and a second control line 32b, and includes a second plug 30b. Yes.
　一対の給電線３１は、交流電圧が印加されるＡＣ線（ＡＣ＿Ｌ,ＡＣ＿Ｎ）である。制御用線３２は、コントロールパイロット信号等の制御信号を送受信する信号線である。給電装置２及び車両１間が接続された場合に送受信されるコントロールパイロット信号に基づいて、車両１のバッテリ１０への充電に対する制御が行われる。また、制御用線３２は、車両認証、充電管理、課金管理等の管理を行うための情報、その他各種情報を伝送する媒体として用いることも可能である。即ち、車両１及び給電装置２は、制御用線３２に対して通信信号を重畳及び分離することにより、通信を行うことができる。しかも、本発明の給電装置２は、第１の車両１ａ及び第２の車両１ｂに同時に給電することが可能であると共に、給電に際し、第１の車両１ａ及び第２の車両１ｂと同時に通信を行うことが可能である。 The pair of power supply lines 31 are AC lines (AC_L, AC_N) to which an AC voltage is applied. The control line 32 is a signal line for transmitting / receiving a control signal such as a control pilot signal. Control for charging the battery 10 of the vehicle 1 is performed based on a control pilot signal transmitted and received when the power feeding device 2 and the vehicle 1 are connected. The control line 32 can also be used as a medium for transmitting information for performing management such as vehicle authentication, charging management, charging management, and other various information. That is, the vehicle 1 and the power feeding device 2 can perform communication by superimposing and separating the communication signal on the control line 32. Moreover, the power supply device 2 of the present invention can supply power to the first vehicle 1a and the second vehicle 1b at the same time, and communicates simultaneously with the first vehicle 1a and the second vehicle 1b during power supply. Is possible.
　給電装置２は、第１の充電ケーブル３ａにより接続された第１の車両１ａを給電対象として、交流電力を供給する第１電力供給部２０ａと、充電制御に用いる第１充電制御部２１ａとを備えている。また、給電装置２は、第２の充電ケーブル３ｂにより接続された第２の車両１ｂを給電対象として、交流電力を供給する第２電力供給部２０ｂと、充電制御に用いる第２充電制御部２１ｂとを備えている。さらに、給電装置２は、第１の制御用線３２ａ及び第２の制御用線３２ｂを媒体として通信信号の送受信を行う一つの通信部２２を備えている。 The power supply device 2 includes a first power supply unit 20a that supplies AC power, and a first charge control unit 21a that is used for charge control, with the first vehicle 1a connected by the first charging cable 3a as a power supply target. I have. In addition, the power feeding device 2 uses the second vehicle 1b connected by the second charging cable 3b as a power feeding target, a second power supply unit 20b that supplies AC power, and a second charging control unit 21b that is used for charging control. And. Furthermore, the power supply apparatus 2 includes a single communication unit 22 that transmits and receives communication signals using the first control line 32a and the second control line 32b as media.
　第１電力供給部２０ａには、第１の給電線３１ａの一端が接続されており、第１充電制御部２１ａには、第１の制御用線３２ａの一端が接続されている。また、第２電力供給部２０ｂには、第２の給電線３１ｂの一端が接続されており、第２充電制御部２１ｂには、第２の制御用線３２ｂの一端が接続されている。給電装置２内の配線は、給電装置２外部の充電ケーブル３ａ、３ｂに内包された給電線３１ａ、３１ｂ、及び制御用線３２ａ、３２ｂに接続された延長線として機能する内部導線ということになるが、以降の説明では、便宜上、内部導線として配設された延長線部分も含めて、給電線３１ａ、３１ｂ及び制御用線３２ａ、３２ｂとして説明する。 One end of a first power supply line 31a is connected to the first power supply unit 20a, and one end of a first control line 32a is connected to the first charge control unit 21a. In addition, one end of a second power supply line 31b is connected to the second power supply unit 20b, and one end of a second control line 32b is connected to the second charge control unit 21b. The wiring in the power supply apparatus 2 is an internal conductor that functions as an extension line connected to the power supply lines 31a and 31b included in the charging cables 3a and 3b outside the power supply apparatus 2 and the control lines 32a and 32b. However, in the following description, for the sake of convenience, the power supply lines 31a and 31b and the control lines 32a and 32b will be described including the extended line portion disposed as the internal conductor.
　第１充電制御部２１ａ及び第２充電制御部２１ｂは、例えば、充電制御に関する国際規格に準拠した出力側の回路であり、コントロールパイロット信号等の制御信号を送受信することにより、接続確認、通電開始等の様々な状態における充電制御を行う。 The first charge control unit 21a and the second charge control unit 21b are, for example, output-side circuits compliant with international standards related to charge control. By transmitting and receiving control signals such as control pilot signals, connection confirmation and start of energization are performed. The charging control is performed in various states.
　車両１は、バッテリ１０及び受電コネクタ１１の他、バッテリ１０に対する充電を行う充電装置１２と、充電制御に係る通信を行う充電制御装置１３と、通信信号の送受信を行う通信装置１４とを備えている。 In addition to the battery 10 and the power receiving connector 11, the vehicle 1 includes a charging device 12 that charges the battery 10, a charging control device 13 that performs communication related to charging control, and a communication device 14 that transmits and receives communication signals. Yes.
　受電コネクタ１１内には、一対の給電線３１及び制御用線３２に接続される図示しない内部配線が設けられている。給電線３１に接続された内部配線の他端は、車両１内の内部に配設されたＡＣ線を介して充電装置１２に接続されており、充電装置１２によりバッテリ１０に対する充電が行われる。制御用線３２に接続された内部配線の他端は、車両１内の内部配線として配設された延長線を介して充電制御装置１３に接続されている。なお、以降の説明においては、便宜上、各内部配線、ＡＣ線、延長線をも含めて、給電線３１及び制御用線３２として説明する。 In the power receiving connector 11, an internal wiring (not shown) connected to the pair of power supply lines 31 and the control line 32 is provided. The other end of the internal wiring connected to the power supply line 31 is connected to the charging device 12 via an AC line disposed inside the vehicle 1, and the battery 10 is charged by the charging device 12. The other end of the internal wiring connected to the control line 32 is connected to the charging control device 13 via an extension line disposed as an internal wiring in the vehicle 1. In the following description, for convenience, the internal wiring, the AC line, and the extension line will be described as the power supply line 31 and the control line 32.
　また、制御用線３２には、途中から分岐する分岐線が設けられており、分岐線は通信装置１４に接続されている。 Further, the control line 32 is provided with a branch line that branches from the middle, and the branch line is connected to the communication device 14.
　充電制御装置１３は、例えば、充電制御に関する国際規格に準拠した入力側の回路であり、給電装置２の第１充電制御部２１ａ又は第２充電制御部２１ｂと通信可能となった場合に、コントロールパイロット信号等の制御信号を送受信することにより、接続確認、通信開始等の様々な状態における充電制御を行う。 The charge control device 13 is, for example, an input-side circuit that conforms to an international standard related to charge control, and is controlled when communication with the first charge control unit 21a or the second charge control unit 21b of the power supply device 2 becomes possible. By transmitting and receiving control signals such as pilot signals, charging control in various states such as connection confirmation and communication start is performed.
　図２は、本発明の実施の形態１に係る給電装置２に関する構成例を示すブロック図である。図２は、図１に示した構成例のうち、通信信号の送受信による通信に関する回路等の構成を更に詳細に示したブロック図である。 FIG. 2 is a block diagram showing a configuration example relating to the power feeding device 2 according to Embodiment 1 of the present invention. FIG. 2 is a block diagram showing in more detail the configuration of a circuit and the like related to communication by transmission / reception of communication signals in the configuration example shown in FIG.
　充電ケーブル３は、接地線３３を内包しており、通信信号の送受信による通信には、制御用線３２及び接地線３３が用いられる。なお、必要に応じて、第１の充電ケーブル３ａは、第１の接地線３３ａを内包し、第２の充電ケーブル３ｂは、第２の接地線３３ｂを内包するものとして説明する。また、給電装置２及び車両１内にて接地線３３に接続される内部配線についても、接地線３３（３３ａ、３３ｂ）として説明する。 The charging cable 3 includes a ground line 33, and the control line 32 and the ground line 33 are used for communication by transmission and reception of communication signals. Note that the first charging cable 3a includes the first grounding wire 33a and the second charging cable 3b includes the second grounding wire 33b as necessary. The internal wiring connected to the grounding wire 33 in the power feeding device 2 and the vehicle 1 will also be described as grounding wires 33 (33a, 33b).
　給電装置２内において、第１の制御用線３２ａは、第１の充電制御部２１ａに接続されており、第２の制御用線３２ｂは、第２の充電制御部２１ｂに接続されている。第１の充電制御部２１ａは、コンデンサ、抵抗等の各種素子、発振回路等の各種回路を備えている。コンデンサ、抵抗等の各種素子のパラメータは、送受信される制御信号に係る帯域等を考慮して適宜設計される。例えば、１ｋＨｚの矩形波によるコントロールパイロット信号を制御信号として用いる場合には、２．２ｎＦのコンデンサ及び１．０ｋΩの抵抗が用いられる。第２の充電制御部２１ｂも同様である。 In the power feeding apparatus 2, the first control line 32a is connected to the first charge control unit 21a, and the second control line 32b is connected to the second charge control unit 21b. The first charge control unit 21a includes various elements such as a capacitor and a resistor, and various circuits such as an oscillation circuit. Parameters of various elements such as a capacitor and a resistor are appropriately designed in consideration of a band related to a control signal to be transmitted / received. For example, when a control pilot signal using a rectangular wave of 1 kHz is used as a control signal, a 2.2 nF capacitor and a 1.0 kΩ resistor are used. The same applies to the second charge control unit 21b.
　また、給電装置２内では、第１の制御用線３２ａから分岐する分岐線及び第２の制御用線３２ｂから分岐する分岐線が配設されており、各分岐線は、通信信号の重畳／分離を行う重畳分離部２３を介して通信部２２に接続されている。 Further, in the power feeding device 2, a branch line branching from the first control line 32a and a branch line branching from the second control line 32b are provided, and each branch line is connected with a superposition of communication signals. It is connected to the communication unit 22 via a superposition / separation unit 23 that performs separation.
　第１の制御用線３２ａから分岐する分岐線には、カップリングコンデンサ２４ａ及びハイパスフィルタ２６ａが直列に介装されている。また、第２の制御用線３２ｂから分岐する分岐線には、カップリングコンデンサ２４ｂ及びハイパスフィルタ２６ｂが直列に介装されている。カップリングコンデンサ２４ａ、２４ｂとしては、例えば静電容量が１ｎＦのコンデンサが用いられる。 A coupling capacitor 24a and a high-pass filter 26a are interposed in series on a branch line branched from the first control line 32a. In addition, a coupling capacitor 24b and a high-pass filter 26b are interposed in series on a branch line branched from the second control line 32b. As the coupling capacitors 24a and 24b, for example, capacitors having a capacitance of 1 nF are used.
　ハイパスフィルタ２６ａ、２６ｂは、コンデンサ、コンデンサ及びコイルの直列回路等の素子又は回路として構成され、制御信号に用いられる低周波数の帯域の信号を遮断する低域遮断部として機能し、また、通信信号に用いられる高周波数の帯域の信号を通過させる。 The high- pass filters 26a and 26b are configured as elements or circuits such as a capacitor, a capacitor and a series circuit of a coil, function as a low-frequency cutoff unit that cuts off a low-frequency band signal used for a control signal, and a communication signal The signal of the high frequency band used for is passed.
　通信信号に用いられる周波数の帯域としては、数１０ｋＨｚ～数１００ｋＨｚ、例えば３０ｋＨｚ～４５０ｋＨｚの帯域が低速通信用の帯域として用いられる。また、数ＭＨｚ～数十ＭＨｚ、例えば２ＭＨｚ～３０ＭＨｚの帯域が高速通信用の帯域として用いられる。なお、制御信号は、１ｋＨｚの発振器から出力されるので、通信信号より低周波の信号となる。 As a frequency band used for a communication signal, a band of several tens of kHz to several hundreds of kHz, for example, 30 kHz to 450 kHz is used as a band for low-speed communication. A band of several MHz to several tens of MHz, for example, 2 MHz to 30 MHz, is used as a band for high-speed communication. Since the control signal is output from the 1 kHz oscillator, the control signal is a signal having a lower frequency than the communication signal.
　重畳分離部２３は、各分岐線を介して第１の制御用線３２ａ及び第２の制御用線３２ｂに接続される一次コイル２３１と、一次コイル２３１に電磁的に結合される二次コイル２３２とを備えるカップリングトランス（電磁誘導式の信号変換器）等の回路である。 The superimposing / separating unit 23 includes a primary coil 231 connected to the first control line 32a and the second control line 32b via each branch line, and a secondary coil 232 electromagnetically coupled to the primary coil 231. A circuit such as a coupling transformer (electromagnetic induction signal converter).
　重畳分離部２３が備える一次コイル２３１の一端は、各分岐線に接続されており、他端は、カップリングコンデンサ２５を介して接地されている。また、重畳分離部２３が備える二次コイル２３２は、通信部２２に接続されている。カップリングコンデンサ２５としては、例えば静電容量が１ｎＦのコンデンサが用いられる。 One end of the primary coil 231 provided in the superposition / separation unit 23 is connected to each branch line, and the other end is grounded via a coupling capacitor 25. The secondary coil 232 included in the superposition / separation unit 23 is connected to the communication unit 22. As the coupling capacitor 25, for example, a capacitor having a capacitance of 1 nF is used.
　このように構成された重畳分離部２３は、第１の制御用線３２ａ及び第２の制御用線３２ｂに対して、各種通信信号を重畳し、また、重畳された各種通信信号を分離する。重畳分離部２３が、通信部２２から出力される各種通信信号を重畳し、また、分離した各種通信信号を通信部２２に入力することで、通信部２２の通信が行われる。 The superposition / separation unit 23 configured in this manner superimposes various communication signals on the first control line 32a and the second control line 32b and separates the various communication signals superimposed. The superimposing / separating unit 23 superimposes various communication signals output from the communication unit 22, and inputs the separated various communication signals to the communication unit 22, whereby communication of the communication unit 22 is performed.
　本発明の給電装置２では、一つの通信部２２が、重畳分離部２３を介して複数の制御用線３２、３２に対して通信信号を重畳し、また、分離することで通信を行う。従って、制御用線３２、３２、分岐線等の配線が有する容量成分、及びカップリングコンデンサ２４ａ、２４ｂの静電容量により、全体としての静電容量が増大することになるため、制御用線３２、３２及び接地線３３間の静電容量も増大する。このため、制御信号の立ち上がり時間が遅くなり、波形がなまることになる。波形のなまりは、充電制御に際してのｄｕｔｙの誤判定を引き起こす可能性がある。 In the power supply device 2 of the present invention, one communication unit 22 performs communication by superimposing and separating communication signals on the plurality of control lines 32 and 32 via the superposition / separation unit 23. Accordingly, the capacitance of the control lines 32 and 32, the branch lines, and the like, and the capacitance of the coupling capacitors 24a and 24b increase the overall capacitance. , 32 and the ground line 33 are also increased. For this reason, the rise time of the control signal is delayed and the waveform is smoothed. The rounding of the waveform may cause erroneous determination of duty during charge control.
　ハイパスフィルタ２６ａ、２６ｂは、このような波形のなまりを防止して、誤判定による誤動作の抑制を防止する機能を有する。また、ハイパスフィルタ２６ａ、２６ｂにて、制御信号を遮断し、通信信号を通過させることにより、伝送される制御信号等の信号に基づくノイズが、周辺の機器、他の配線等の他の系に混入することを防止し、また、他の系からのノイズの混入を防止する。 The high- pass filters 26a and 26b have a function of preventing such waveform rounding and preventing malfunction due to erroneous determination. Further, by blocking the control signal and allowing the communication signal to pass through the high- pass filters 26a and 26b, noise based on a signal such as a transmitted control signal is caused to other devices such as peripheral devices and other wirings. Mixing is prevented, and noise from other systems is prevented.
　なお、図２に示す構成例では、カップリングコンデンサ２４ａ、２４ｂと、ハイパスフィルタ２６ａ、２６ｂとを異なる素子又は回路として記載しているが、カップリングコンデンサ２４ａ及びハイパスフィルタ２６ａを一つの素子又は回路として一体化する等、適宜設計することが可能である。 In the configuration example shown in FIG. 2, the coupling capacitors 24a and 24b and the high- pass filters 26a and 26b are described as different elements or circuits. However, the coupling capacitor 24a and the high-pass filter 26a are formed as one element or circuit. It is possible to design as appropriate.
　車両１内では、制御用線３２に充電制御装置１３が接続されている。さらに、充電制御装置１３は、車体接地（body earth）を介して、又は直接に接地線３３と接続されている。充電制御装置１３は、コンデンサ、抵抗、ダイオード等の各種素子を備えている。コンデンサ、抵抗等の各種素子のパラメータは、送受信される制御信号に係る帯域等を考慮して適宜設計される。例えば、１ｋＨｚの矩形波によるコントロールパイロット信号を制御信号として用いる場合には、１．８ｎＦのコンデンサ及び２．７４ｋΩの抵抗が用いられる。 In the vehicle 1, the charging control device 13 is connected to the control line 32. Further, the charging control device 13 is connected to the ground line 33 via a vehicle body ground (body earth) or directly. The charging control device 13 includes various elements such as a capacitor, a resistor, and a diode. Parameters of various elements such as a capacitor and a resistor are appropriately designed in consideration of a band related to a control signal to be transmitted / received. For example, when a control pilot signal using a rectangular wave of 1 kHz is used as a control signal, a 1.8 nF capacitor and a 2.74 kΩ resistor are used.
　制御用線３２及び接地線３３には、途中から分岐する分岐線が設けられており、分岐線は、重畳分離器１５を介して通信装置１４に接続されている。また、制御用線３２からの分岐線には、カップリングコンデンサ１６が介装されており、接地線３３からの分岐線にはカップリングコンデンサ１７が介装されている。カップリングコンデンサ１６、１７としては、例えば静電容量が１ｎＦのコンデンサが用いられる。 The control line 32 and the ground line 33 are provided with a branch line that branches from the middle, and the branch line is connected to the communication device 14 via the superposition separator 15. A coupling capacitor 16 is interposed in the branch line from the control line 32, and a coupling capacitor 17 is interposed in the branch line from the ground line 33. As the coupling capacitors 16 and 17, for example, capacitors having a capacitance of 1 nF are used.
　重畳分離器１５は、電磁的に結合される一次コイル及び二次コイルを備えるカップリングトランス等の回路である。一次コイルは、分岐線を介して制御用線３２及び接地線３３に接続されており、二次コイルは、通信装置１４に接続されている。 The superposition separator 15 is a circuit such as a coupling transformer including a primary coil and a secondary coil that are electromagnetically coupled. The primary coil is connected to the control line 32 and the ground line 33 via a branch line, and the secondary coil is connected to the communication device 14.
　このように構成された重畳分離器１５は、制御用線３２に対して、各種通信信号を重畳し、また、重畳された各種通信信号を分離する。重畳分離器１５が、通信装置１４から出力される各種通信信号を重畳し、また、分離した各種通信信号を通信装置１４に入力することで、通信装置１４の通信が行われる。 The superposition separator 15 configured as described above superimposes various communication signals on the control line 32 and separates the various communication signals superimposed. The superimposing / separating device 15 superimposes various communication signals output from the communication device 14 and inputs the separated various communication signals to the communication device 14 so that the communication device 14 communicates.
　即ち、重畳分離器１５、制御用線３２、接地線３３、重畳分離部２３及びその他の配線、素子、回路により通信信号を伝送するループ回路が形成される。これにより、車両１内の通信装置１４及び給電装置２の通信部２２間で、制御用線３２を媒体として通信信号を重畳するinband通信を実現することができる。 That is, a loop circuit for transmitting a communication signal is formed by the superimposing separator 15, the control line 32, the ground line 33, the superimposing / separating unit 23, and other wirings, elements, and circuits. Thereby, the inband communication which superimposes a communication signal by using the control line 32 as a medium between the communication device 14 in the vehicle 1 and the communication unit 22 of the power feeding device 2 can be realized.
　通信信号は、予め設定された所定のデータ長毎にパケットとして送受信される。送受信されるパケットは、ヘッダ部とデータ部とを有し、ヘッダ部には、通信相手として送信先を示す識別情報、送信元を示す識別情報等の各種情報が示されている。これらの識別情報としては、例えば、通信に係る機器を識別するＭＡＣアドレス等の情報が用いられる。即ち、給電装置２の通信部２２は、車両１が備える通信装置１４のＭＡＣアドレスを送信先を示す識別情報として用いることにより、通信相手を指定した通信信号を送受信することができる。 The communication signal is transmitted and received as a packet for each predetermined data length set in advance. A packet to be transmitted / received has a header portion and a data portion, and various information such as identification information indicating a transmission destination and identification information indicating a transmission source is shown in the header portion. As such identification information, for example, information such as a MAC address for identifying a device related to communication is used. That is, the communication unit 22 of the power supply device 2 can transmit and receive a communication signal specifying a communication partner by using the MAC address of the communication device 14 included in the vehicle 1 as identification information indicating a transmission destination.
　車両１は、通信装置１４により、受信した通信信号に係るパケットに通信相手として指定されているＭＡＣアドレス等の識別情報に基づいて、自装置宛の通信信号か否かを判定する。そして、自装置宛の通信信号であると判定した場合、当該パケットに係る通信信号に基づく処理を行い、自装置宛の通信信号ではないと判定した場合、当該パケットを破棄する。即ち、車両１は、通信装置１４により、自らを指定した通信信号に基づいて、給電装置２が備える通信部２２と通信を行う。 The vehicle 1 determines whether or not the communication signal is a communication signal addressed to the own device based on identification information such as a MAC address specified as a communication partner in the packet related to the received communication signal. When it is determined that the communication signal is addressed to the own apparatus, processing based on the communication signal related to the packet is performed. When it is determined that the communication signal is not addressed to the own apparatus, the packet is discarded. That is, the vehicle 1 communicates with the communication unit 22 included in the power feeding device 2 based on a communication signal that designates the vehicle 1 by the communication device 14.
　このように、本発明に係る給電装置２は、通信信号に係るパケットに示されている識別情報に基づいて、通信信号の送受信による通信を行うことにより、複数台の車両１、１と同時に通信を行うことができる。そして、本発明に係る給電装置２は、複数台の車両１、１に対して給電、給電制御及び通信を同時に行うことができるので、給電等の処理を効率化することが可能である。 As described above, the power feeding device 2 according to the present invention communicates simultaneously with a plurality of vehicles 1 and 1 by performing communication by transmission and reception of communication signals based on identification information indicated in the packets related to communication signals. It can be performed. And since the electric power feeder 2 which concerns on this invention can perform electric power feeding, electric power feeding control, and communication with respect to the several vehicles 1 and 1 simultaneously, it can improve processes, such as electric power feeding.
実施の形態２．
　実施の形態２は、実施の形態１において、制御用線上にローパスフィルタを設ける形態である。なお、以降の説明において、実施の形態１と同様の構成については実施の形態１と同様の符号を付し、実施の形態１を参照するものとし、その詳細な説明を省略する。 Embodiment 2. FIG.
The second embodiment is a form in which a low-pass filter is provided on the control line in the first embodiment. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the first embodiment is referred to and detailed description thereof is omitted.
　図３は、本発明の実施の形態２に係る給電装置２に関する構成例を示すブロック図である。実施の形態２に係る給電装置２内の第１の制御用線３２ａには、ローパスフィルタ２７ａが介装されている。ローパスフィルタ２７ａは、分岐線の分岐位置及び第１充電制御部２１ａ間に位置する。また、第２の制御用線３２ｂには、ローパスフィルタ２７ｂが介装されている。ローパスフィルタ２７ｂは、分岐線の分岐位置及び第２充電制御部２１ｂ間に位置する。さらに、車両１内においても、制御用線３２にローパスフィルタ１８が介装されている。車両１内のローパスフィルタ１８は、分岐線の分岐位置及び充電制御装置１３間に位置する。ローパスフィルタ２７ａ、２７ｂ、１８は、通信信号に用いられる高周波数の帯域に信号を遮断する高域遮断部として機能し、また、制御信号に用いられる低周波数の帯域の信号を通過させる。 FIG. 3 is a block diagram illustrating a configuration example relating to the power feeding device 2 according to Embodiment 2 of the present invention. A low-pass filter 27a is interposed in the first control line 32a in the power feeding device 2 according to the second embodiment. The low pass filter 27a is located between the branch position of the branch line and the first charging control unit 21a. In addition, a low-pass filter 27b is interposed in the second control line 32b. The low pass filter 27b is located between the branch position of the branch line and the second charging control unit 21b. Further, in the vehicle 1, the low-pass filter 18 is interposed in the control line 32. The low-pass filter 18 in the vehicle 1 is located between the branch position of the branch line and the charging control device 13. The low- pass filters 27a, 27b, and 18 function as a high-frequency cutoff unit that cuts off a signal in a high-frequency band used for a communication signal, and allows a low-frequency band signal used for a control signal to pass therethrough.
　図４は、本発明の実施の形態２に係る給電装置２にて用いられるローパスフィルタ２７ａ、２７ｂの構成例を示す回路図である。ローパスフィルタ（ＬＰＦ）２７ａ、２７ｂは、図４に示すように、例えば、インダクタンスが１．５ｍＨであるコイル及び１．０ｋΩの抵抗を並列に配置した回路、又はその等価回路として構成される。なお、同様の特性を得ることができるのであれば、他の回路を用いて構成しても良い。また、車両１にて用いられるローパスフィルタ１８も同様の回路又はその等価回路として構成される。 FIG. 4 is a circuit diagram showing a configuration example of the low-pass filters 27a and 27b used in the power feeding device 2 according to Embodiment 2 of the present invention. As shown in FIG. 4, the low-pass filters (LPF) 27a and 27b are configured as, for example, a circuit in which a coil having an inductance of 1.5 mH and a 1.0 kΩ resistor are arranged in parallel, or an equivalent circuit thereof. Note that another circuit may be used as long as similar characteristics can be obtained. The low pass filter 18 used in the vehicle 1 is also configured as a similar circuit or an equivalent circuit thereof.
　実施の形態２に示す様に給電装置２内にローパスフィルタ２７ａ、２７ｂ等の高域遮断部を設けることにより、通信信号が充電制御部側へ漏出することによる誤動作を防止することが可能である。 As shown in the second embodiment, by providing a high-frequency cutoff unit such as the low-pass filters 27a and 27b in the power feeding device 2, it is possible to prevent malfunction due to leakage of a communication signal to the charge control unit side. .
　前記実施の形態１及び２は、本発明の無数に存在する実施例の一部を開示したに過ぎず、目的、用途、仕様等の様々な要因を加味して適宜設計することが可能である。 The first and second embodiments only disclose a part of the myriad examples of the present invention, and can be appropriately designed in consideration of various factors such as purpose, application, and specifications. .
　例えば、前記実施の形態では、一つの通信部により、２台の車両と同時に通信することが可能な形態を示したが、本発明はこれに限らず、３台以上の車両と通信するようにしても良い。更には、２台の車両と同時に通信することが可能な通信部を複数設けることにより、更に通信可能な車両を増加させるようにしても良い。 For example, in the above-described embodiment, an embodiment has been described in which one communication unit can communicate with two vehicles simultaneously. However, the present invention is not limited to this, and communication with three or more vehicles is performed. May be. Furthermore, by providing a plurality of communication units that can communicate simultaneously with two vehicles, the number of vehicles that can further communicate may be increased.
　また、通信部及び重畳分離部を一体化する等、適宜、設計することも可能である。更には、給電装置が車両以外の給電対象に対して給電し、かつ、通信する形態に展開することも可能である。 Also, it is possible to design appropriately such as integrating the communication unit and the superimposing / separating unit. Furthermore, it is possible to develop a configuration in which the power supply device supplies power to and communicates with a power supply target other than the vehicle.
　１、１ａ、１ｂ　車両
　１０　バッテリ（蓄電装置）
　１１　受電コネクタ
　１２　充電装置
　１３　充電制御装置
　１４　通信装置
　１５　重畳分離器
　１６、１７　カップリングコンデンサ
　１８　ローパスフィルタ
　２　給電装置
　２０ａ　第１電力供給部
　２０ｂ　第２電力供給部
　２１ａ　第１充電制御部
　２１ｂ　第２充電制御部
　２２　通信部
　２３　重畳分離部
　２３１　一次コイル
　２３２　二次コイル
　２４ａ、２４ｂ、２５　カップリングコンデンサ
　２６ａ、２６ｂ　ハイパスフィルタ（低域遮断部）
　２７ａ、２７ｂ　ローパスフィルタ（高域遮断部）
　３、３ａ、３ｂ　充電ケーブル
　３０、３０ａ、３０ｂ　プラグ
　３１、３１ａ、３１ｂ　給電線
　３２、３２ａ、３２ｂ　制御用線
　３３、３３ａ、３３ｂ　接地線 1, 1a, 1b Vehicle 10 Battery (power storage device)
DESCRIPTION OF SYMBOLS 11 Power receiving connector 12 Charging apparatus 13 Charging control apparatus 14 Communication apparatus 15 Superimposition separator 16, 17 Coupling capacitor 18 Low pass filter 2 Power feeding apparatus 20a 1st electric power supply part 20b 2nd electric power supply part 21a 1st charge control part 21b 2nd Charge control unit 22 Communication unit 23 Superimposition separation unit 231 Primary coil 232 Secondary coil 24a, 24b, 25 Coupling capacitor 26a, 26b High-pass filter (low-frequency cutoff unit)
27a, 27b Low-pass filter (high-frequency cutoff unit)
3, 3a, 3b Charging cable 30, 30a, 30b Plug 31, 31a, 31b Feed line 32, 32a, 32b Control line 33, 33a, 33b Ground line

Claims (5)

  1. 　外部の給電対象に対する給電に際し、給電制御に用いる制御信号を伝送する制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電対象と通信する給電装置において、
    　夫々異なる給電対象に接続することが可能な複数の制御用線と、
    　複数の制御用線に接続し、通信相手を指定した通信信号を送受信する通信部と
    　を備えることを特徴とする給電装置。     In the power supply apparatus that communicates with the power supply target by transmitting and receiving a communication signal different from the control signal, using a control line for transmitting a control signal used for power supply control as a medium when powering the external power supply target,
    A plurality of control lines that can be connected to different power supply targets,
    A power supply device comprising: a communication unit connected to a plurality of control lines and transmitting and receiving a communication signal designating a communication partner.
  2. 　外部の給電対象に対する給電線を用いた給電に際し、給電制御に用いる制御信号を伝送する制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電対象と通信する給電装置において、
    　夫々異なる給電対象に接続することが可能な複数の給電線及び制御用線と、
    　複数の制御用線から夫々分岐する複数の分岐線と、
    　通信相手を指定した通信信号を送受信する通信部と、
    　該通信部にて送信／受信される通信信号を、前記分岐線を介して接続する前記制御用線に対し重畳／分離する重畳分離部と
    　を備え、
    　該重畳分離部は、
    　前記複数の分岐線に接続する一次コイルと、
    　該一次コイルと電磁的に結合し、前記通信部に接続する二次コイルと
    　を有する
    　ことを特徴とする給電装置。     When supplying power to an external power supply target using a power supply line, a power supply apparatus that communicates with the power supply target by transmitting / receiving a communication signal different from the control signal using a control line for transmitting a control signal used for power supply control as a medium In
    A plurality of power supply lines and control lines that can be connected to different power supply targets,
    A plurality of branch lines each branching from a plurality of control lines;
    A communication unit for transmitting and receiving a communication signal designating a communication partner;
    A superposition / separation unit that superimposes / separates a communication signal transmitted / received by the communication unit with respect to the control line connected via the branch line;
    The overlapping separation unit is
    A primary coil connected to the plurality of branch lines;
    A power supply apparatus comprising: a secondary coil that is electromagnetically coupled to the primary coil and connected to the communication unit.
  3. 　前記複数の分岐線に介装され、前記制御信号に用いられる帯域の信号を遮断する低域遮断部を更に備えることを特徴とする請求項２に記載の給電装置。 The power feeding device according to claim 2, further comprising a low-frequency cutoff unit that is interposed in the plurality of branch lines and blocks a signal in a band used for the control signal.
  4. 　前記複数の制御用線に夫々接続され、制御信号を送信／受信する複数の充電制御部と、
    　前記複数の制御用線に介装され、前記分岐線の分岐位置及び前記充電制御部間に位置し、前記通信信号に用いられる帯域の信号を遮断する高域遮断部と
    　を更に備えることを特徴とする請求項２又は３に記載の給電装置。     A plurality of charge controllers connected to the plurality of control lines, respectively, for transmitting / receiving control signals;
    A high frequency cutoff unit interposed between the plurality of control lines, located between the branch position of the branch line and the charge control unit, and configured to block a signal in a band used for the communication signal. The power feeding apparatus according to claim 2 or 3.
  5. 　給電装置と、該給電装置から給電される車両とを、給電に用いる給電線、及び給電制御に用いる制御信号を伝送する制御用線にて接続し、前記制御用線を媒体として、前記制御信号と異なる通信信号を送受信することにより、前記給電装置及び車両間で通信する通信方法において、
    　前記給電装置は、請求項１乃至４のいずれかに記載の給電装置であり、
    　前記車両は、自らを指定した通信信号に基づいて前記給電装置と通信する
    　ことを特徴とする通信方法。     A power supply device and a vehicle fed from the power supply device are connected by a power supply line used for power supply and a control line for transmitting a control signal used for power supply control, and the control signal is used as a medium for the control signal. In a communication method of communicating between the power feeding device and the vehicle by transmitting and receiving a communication signal different from
    The power feeding device is the power feeding device according to any one of claims 1 to 4,
    The vehicle communicates with the power feeding device based on a communication signal designating the vehicle.
PCT/JP2012/083185 2011-12-24 2012-12-21 Feeding apparatus and communication method WO2013094718A1 (en)

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JP2011250625A (en) * 2010-05-28 2011-12-08 Auto Network Gijutsu Kenkyusho:Kk Power supply device for vehicle
WO2012169050A1 (en) * 2011-06-09 2012-12-13 トヨタ自動車株式会社 Power supply apparatus for vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011250625A (en) * 2010-05-28 2011-12-08 Auto Network Gijutsu Kenkyusho:Kk Power supply device for vehicle
WO2012169050A1 (en) * 2011-06-09 2012-12-13 トヨタ自動車株式会社 Power supply apparatus for vehicle

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