WO2019087754A1 - Charging communication control device and charging communication control method - Google Patents

Charging communication control device and charging communication control method Download PDF

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Publication number
WO2019087754A1
WO2019087754A1 PCT/JP2018/038298 JP2018038298W WO2019087754A1 WO 2019087754 A1 WO2019087754 A1 WO 2019087754A1 JP 2018038298 W JP2018038298 W JP 2018038298W WO 2019087754 A1 WO2019087754 A1 WO 2019087754A1
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WIPO (PCT)
Prior art keywords
communication
charging
communication unit
control
charging device
Prior art date
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PCT/JP2018/038298
Other languages
French (fr)
Japanese (ja)
Inventor
雄一 児玉
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2019087754A1 publication Critical patent/WO2019087754A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from 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
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to a charge communication control device and a charge communication control method.
  • This application claims the priority based on Japanese Patent Application No. 2017-210463 filed on Oct. 31, 2017, and incorporates all the contents described in the Japanese application.
  • Plug-in hybrid vehicles using both an electric motor and an engine
  • electric vehicles EV: Electric Vehicle driven by an electric motor without an engine
  • Vehicles such as plug-in hybrid vehicles and electric vehicles are equipped with a battery for driving an electric motor. Charging of the battery is performed at a charging station installed at a gas station, an expressway service area, and other charging stations.
  • the charging device charges the battery by transmitting power through a charging cable connected to the vehicle.
  • a wireless charging device that wirelessly transmits power to a vehicle using a magnetic resonance wireless power transfer technology to charge a battery.
  • the vehicle is equipped with a charge ECU that controls charging of a battery and a charge communication control device.
  • the charge communication control device is a device that transmits and receives information necessary for charge control by the charge ECU with the charge device.
  • the charge communication control device communicates information related to charge control with the first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving the vehicle. And a second communication unit for communicating information related to charge control between the first communication unit and the second charging device for charging the battery by transmitting power through the feeder line, the first communication unit A first communication unit and a second communication unit configured to control communication performed by the second communication unit and the second communication unit such that the second communication unit performs communication prior to the first communication unit.
  • a control unit is provided that selects one of the communication units and controls communication of information related to charging control.
  • a charge communication control method communicates information related to charge control with a first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving a vehicle.
  • the second charging device and the second communication device are When the connection of the vehicle is detected, the communication by the first communication unit is stopped, and the communication by the second communication unit is started.
  • FIG. 1 is a block diagram showing a configuration example of a charge communication control system according to a first embodiment.
  • FIG. 2 is a block diagram showing a configuration example of a charge communication control device according to Embodiment 1. It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control. It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control.
  • FIG. 7 is a block diagram showing an exemplary configuration of a charge communication control system according to a second embodiment. It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 2, and charge control.
  • the charging communication control device will communicate with any one device regarding charging control. Selection of communication destination based on charging efficiency is not performed.
  • the object of the present disclosure is to select a charging device with high charging efficiency when a plurality of charging devices are juxtaposed, and to perform communication of information related to charging control with the charging device. To provide an apparatus and a charge communication control method.
  • the charge communication control device relates to charge control between the first device and the first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving a vehicle. And a second communication unit for communicating information related to charging control between a first communication unit for communicating information and a second charging device for charging the battery by transmitting power through a feeder.
  • a charge communication control device for controlling communication by a first communication unit and the second communication unit, wherein the first communication unit and the second communication unit perform communication prior to the first communication unit.
  • a control unit is provided that selects one of the second communication units and controls communication of information related to charging control.
  • the charging communication control apparatus selects one of the first communication unit and the second communication unit to perform communication related to charging control, and the first and second communication units communicate. If possible, the second communication unit performs communication prior to the first communication unit. The second communication unit communicates information necessary for charge control by the second charging device.
  • the second charging device that transmits power through the feeder can transmit power to the vehicle more efficiently and charge the battery than the first charging device that transmits power contactlessly. Therefore, the charge communication control device can selectively communicate with the charging device that performs more efficient charging.
  • a connection detection unit that detects connection of the second charging device and the vehicle by the feeder line, and the control unit communicates with the first charging device when the first communication unit communicates with the first charging device.
  • the connection detection unit detects a connection, it is preferable that the communication by the first communication unit is stopped and the communication by the second communication unit is started.
  • the apparatus stops communication by the first communication unit and starts communication by the second communication unit.
  • the first communication unit performs wireless communication with the first charging device, and the second communication unit performs wired communication with the second charging device.
  • the charging communication control device wirelessly communicates information necessary for charging control with the first charging device performing non-contact charging, and with the second charging device performing charging through the feed line. Wired communication of information required for charge control.
  • the control unit suspends the wireless communication by the first communication unit when the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit. And the wired communication by the second communication unit is started, and when the wired communication by the second communication unit is established and the charging of the battery by the second charging device is possible, the It is preferable that the wireless communication with one charging device be disconnected.
  • the charging communication control device suspends wireless communication and starts wired communication.
  • wired communication is established and battery charging by the second charging device is possible
  • wireless communication with the first charging device is cut off. Therefore, since it is the structure which cut
  • the control unit suspends the wireless communication by the first communication unit when the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit.
  • the first communication unit A configuration for resuming wireless communication is preferred.
  • the charging communication control device suspends wireless communication and starts wired communication, thereby performing wired communication.
  • wireless communication with the first charging device is resumed. Therefore, the charge communication control device can suppress useless switching of the communication destination. For example, after disconnecting the wireless communication, it is possible to avoid the switching control of the communication destination, which is known to be incapable of charging by the second charging device and to restart the wireless communication again.
  • the charge communication control method relates to charge control between the vehicle and the first charging device that charges the battery by transmitting power without contact to the vehicle equipped with the battery for driving the vehicle.
  • Control communication between the first communication unit that communicates information and the second communication unit that communicates information related to charging control between the second charging device that charges the battery by transmitting power through the feeder line Method of controlling the charging communication, wherein the connection of the second charging device and the vehicle by the feed line is detected, and the first charging unit communicates with the first charging device, the second charging being performed.
  • the connection between the device and the vehicle is detected, the communication by the first communication unit is stopped, and the communication by the second communication unit is started.
  • the charging communication control device can selectively communicate with the charging device that performs more efficient charging.
  • FIG. 1 is a block diagram showing a configuration example of a charge communication control system according to a first embodiment.
  • the charge communication control system of the first embodiment includes a charge communication control device 1 and a charge ECU 2 mounted on a vehicle C, and a first charge device 3 and a second charge device 4 installed at a charge station.
  • the first charging device 3 includes a power transmission pad 31 for transmitting power without contact to a vehicle C such as a plug-in hybrid vehicle equipped with a battery 5 for driving the vehicle or an electric vehicle, and performs the contactless charging of the battery 5 It is.
  • the first charging device 3 has a function of performing wireless communication with the charging communication control device 1.
  • Vehicle C is provided with power reception pad 6 for receiving the power transmitted from power transmission pad 31, and battery 5 is charged with the power received by power reception pad 6.
  • the second charging device 4 is a device including a charging cable 41 provided with a charging gun at its tip and transmitting the DC power to the vehicle C via the charging cable 41 to charge the battery 5.
  • the second charging device 4 conforms to, for example, the Combined Charging System method, and the charging cable 41 includes a feed line for transmitting power, a control line for transmitting a control pilot (CLPT) signal, and a reference potential line.
  • CLPT control pilot
  • the vehicle C is provided with an inlet 7 to which a charging gun is connected.
  • the inlet 7 is connected to the in-vehicle feed line 81, the in-vehicle control line 82, and the in-vehicle reference potential line 83 (see FIG.
  • the charge gun is connected to the inlet 7 to feed and control the charging cable 41.
  • the reference potential line is electrically connected to the in-vehicle feed line 81, the in-vehicle control line 82, and the in-vehicle reference potential line 83.
  • the in-vehicle feed line 81 is connected to the battery 5, and the battery 5 is charged with the power transmitted from the second charging device 4 through the feed line of the charging cable 41.
  • the in-vehicle control line 82 and the in-vehicle reference potential line 83 are connected to the charge ECU 2 via the charge communication control device 1.
  • the control pilot signal is, for example, a rectangular wave signal of 1 kHz
  • the second charging device 4 and the charging ECU 2 are controlled by the second charging device 4 and the vehicle C depending on the potential of the rectangular wave signal with respect to the reference potential and the presence or absence of the rectangular wave signal. It sends and receives information on charging, such as connection confirmation, charging availability, charging status, etc.
  • the second charging device 4 has a function of performing wired communication with the charge communication control device 1 by PLC communication using a feed line.
  • the charge ECU 2 transmits and receives information necessary for charge control between the first charge device 3 and the second charge device 4 using the charge communication control device 1. For example, when charging of the battery 5 is started, the charging ECU 2 transmits information of the battery 5 to the charging communication control device 1.
  • the charging communication control device 1 receives the information transmitted from the charging ECU 2, converts the received information into a predetermined communication protocol, and transmits the information to the first charging device 3 and the second charging device 4 wirelessly or by wire.
  • the charge communication control device 1 receives the information transmitted wirelessly or by wire from the first charging device 3 and the second charging device 4, it converts the received information into a communication protocol, and transmits it to the charging ECU 2.
  • the charge ECU 2 manages the state of the battery 5 while communicating with the first charge device 3 through the charge communication control device 1, and controls power transmission or charge from the power receiving pad 6 to the battery 5. Further, the charge ECU 2 manages the state of the battery 5 while communicating with the second charge device 4 through the charge communication control device 1 and controls power transmission or charge to the battery 5 by the second charge device 4.
  • FIG. 2 is a block diagram showing a configuration example of the charge communication control device 1 according to the first embodiment.
  • the charge communication control device 1 includes a wireless communication unit 11 that performs wireless communication with the first charging device 3 and a PLC communication unit 12 that performs wired communication, for example, PLC communication, with the second charging device 4, and CAN A communication unit 13, a control unit 14, and a connection detection unit 15 are provided.
  • the control unit 14 is a computer having a CPU, a ROM, a RAM, an input / output interface and the like, and controls communication by the wireless communication unit 11, the PLC communication unit 12, and the CAN communication unit 13.
  • the wireless communication unit 11 is a circuit that performs wireless communication with the first charging device 3 in accordance with a predetermined wireless LAN standard, and the wireless communication is controlled by the control unit 14.
  • the PLC communication unit 12 is connected to the in-vehicle control line 82 and the in-vehicle reference potential line 83, and transmits and receives information on charging to and from the vehicle C using the in-vehicle control line 82 and the in-vehicle reference potential line 83.
  • the PLC communication unit 12 communicates with the second charging device 4 by superimposing a differential signal having a frequency higher than that of the control pilot signal, for example, a differential signal of 2 to 30 MHz on the control pilot signal.
  • the wired communication by the PLC communication unit 12 is controlled by the control unit 14.
  • the PLC communication unit 12 includes a coupling capacitor 12a and a coupling transformer 12b for separating the differential signal superimposed on the control pilot signal from the control pilot signal, and a communication circuit 12c for transmitting and receiving the differential signal.
  • the in-vehicle control line 82 and the in-vehicle reference potential line 83 are connected to the coupling transformer 12b via the coupling capacitor 12a.
  • the coupling capacitor 12a has a high impedance for the control pilot signal and a low impedance for the differential signal.
  • a capacitor having a capacitance of 1 nF is used as the coupling capacitor 12a.
  • the coupling transformer 12 b has a primary coil and a secondary coil magnetically coupled to the primary coil.
  • An in-vehicle control line 82 and an in-vehicle reference potential line 83 are connected to both ends of the primary coil via a coupling capacitor 12 a. Both ends of the secondary coil are connected to the communication circuit 12c.
  • the communication circuit 12c has a band pass filter for blocking signals outside the frequency band of differential signals, and receives the differential signal separated by the coupling capacitor 12a and the coupling transformer 12b and passed through the band pass filter. Do. Further, the communication circuit 12c transmits a differential signal by giving a signal to be transmitted to the secondary coil. PLC communication can transmit and receive more information than control pilot signals.
  • the CAN communication unit 13 is connected to the charge ECU 2 via a CAN communication line 10.
  • the CAN communication unit 13 communicates with the charge ECU 2 in accordance with the CAN-FD standard to receive information necessary for charging, such as battery 5 information, from the charge ECU 2, and the received information is transmitted to the wireless communication unit 11. Alternatively, it is given to the PLC communication unit 12.
  • the wireless communication unit 11 communicates with the first charging device 3
  • the wireless communication unit 11 wirelessly transmits the information received by the CAN communication unit 13 to the first charging device 3.
  • the PLC communication unit 12 communicates with the second charging device 4
  • the PLC communication unit 12 transmits the information received by the CAN communication unit 13 to the second charging device 4 by PLC communication.
  • the wireless communication unit 11 When the wireless communication unit 11 receives information necessary for charge control from the first charging device 3, the wireless communication unit 11 provides the information to the CAN communication unit 13. Similarly, when the PLC communication unit 12 receives information necessary for charge control from the second charging device 4, the PLC communication unit 12 provides the information to the CAN communication unit 13.
  • the CAN communication unit 13 transmits the information given from the wireless communication unit 11 or the PLC communication unit 12 to the charging ECU 2. Furthermore, the CAN communication unit 13 can communicate with other ECUs, and receives information on the speed of the vehicle C. Based on the information on the speed of the vehicle C received by the CAN communication unit 13, the control unit 14 determines whether the vehicle C is in a stopped state, and whether the vehicle C is traveling at a low speed. Can.
  • connection detection unit 15 is connected to the inlet 7, detects the connection state of the charging gun, and outputs the detection result to the control unit 14.
  • the inlet 7 is provided with a conductive wire whose potential changes in accordance with the connection state of the charging gun, and the connection detection unit 15 detects the potential of the conductive wire to detect the desorption of the charging gun.
  • FIG.3 and FIG.4 is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control.
  • the control unit 14 of the charge communication control device 1 receives the information related to the vehicle speed at the CAN communication unit 13, and determines whether the vehicle C travels at a low speed or stops (step S11). For example, if the speed is less than 10 km / h, it is determined that the speed is low. If it is determined that the vehicle C is traveling at a high speed (step S11: NO), the control unit 14 ends the process.
  • step S11 When it is determined that the vehicle C is traveling at a low speed or is stopped (step S11: YES), the control unit 14 controls the inlet of the vehicle C based on the detection result output from the connection detection unit 15 It is determined whether it is connected to 7 (step S12). If it is determined that the charging gun is connected (step S12: YES), the control unit 14 causes the PLC communication unit 12 to start PLC communication with the second charging device 4 (step S13).
  • the charge ECU 2 transmits / receives information relating to charge control to / from the second charge device 4 by the charge communication control device 1, and controls charge by the power transmitted from the second charge device 4 through the charge cable 41 (step S14).
  • the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged (step S15). If it is determined that the battery 5 is not fully charged (step S15: NO), the charge ECU 2 returns the process to step S14 and continues charge control. If it is determined that the battery 5 is fully charged (step S15: YES), the charge ECU 2 stops charging by the second charging device 4 (step S16), and the process ends.
  • step S12 when it is determined that the charging gun is not connected (step S12: NO), the control unit 14 searches for an access point and determines whether there is an access point of the first charging device 3 (step S12).
  • step S17 The first charging device 3 periodically wirelessly transmits a beacon signal including an identifier indicating that the device is a non-contact charging device, a network name, etc.
  • the charging communication control device 1 receives the beacon signal, Based on the information included in the beacon signal, it can be determined whether there is an access point of the first charging device 3 or not.
  • step S17: NO If it is determined that there is no access point of the first charging device 3 (step S17: NO), the control unit 14 ends the process. If it is determined that there is an access point of the first charging device 3 (step S17: YES), the control unit 14 causes the wireless communication unit 11 to start wireless communication with the first charging device 3 (step S18) . Next, the control unit 14 determines whether or not the charging gun is connected (step S19). When it is determined that the charging gun is not connected (step S19: NO), the charging ECU 2 transmits / receives information related to charging control to / from the first charging device 3, and contactless transmission is performed from the first charging device 3 Non-contact charging is performed using the stored power (step S20).
  • step S21 the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged (step S21). When it is determined that the battery 5 is not fully charged (step S21: NO), the charge ECU 2 returns the process to step S19 and continues charge control. If it is determined that the battery 5 is in a fully charged state (step S21: YES), the charge ECU 2 stops noncontact charging by the first charging device 3 (step S22), and ends the process.
  • step S19 When it is determined in step S19 that the charging gun is connected (step S19: YES), the control unit 14 transmits a signal to stop the noncontact charging to the charging ECU 2 to stop the noncontact charging (step S23). Then, the control unit 14 suspends the wireless communication by the wireless communication unit 11 (step S24), and starts the communication by the PLC communication unit 12 (step S25). Next, the control unit 14 establishes communication with the second charging device 4 and determines whether charging by the second charging device 4 is possible (step S26). Specifically, charging ECU 2 determines whether or not charging by second charging device 4 is possible, and transmits the determination result to charging communication control device 1.
  • the charge communication control device 1 refers to the determination result of the charge ECU 2 and determines whether charging by the second charging device 4 is possible.
  • step S26 NO
  • the control unit 14 resumes wireless communication by the wireless communication unit 11 (step S30), and returns the process to step S20. 1. The noncontact charging by the charging device 3 is resumed.
  • step S26 When it is determined that charging by the second charging device 4 is possible (step S26: YES), the control unit 14 disconnects wireless communication by the wireless communication unit 11 (step S27). Next, the charging of the battery 5 by the second charging device 4 is controlled in the same processing procedure as in steps S14 to S16 (steps S28 to S30), and the process ends.
  • the second charging device 4 when communication with the first charging device 3 and the second charging device 4 is possible, the second charging device 4 having high charging efficiency is selected. Communication of information related to charging control can be performed with the second charging device 4. Therefore, the charging ECU 2 can communicate with the second charging device 4 with higher charging efficiency to charge the battery 5.
  • the charge communication control device 1 when the charge communication control device 1 performs wireless communication with the first charge device 3 and the charge gun is connected to the inlet 7, the user charges using the charge cable 41. Can be switched to wired communication with the second charging device 4 with higher charging efficiency.
  • the second charging device 4 for supplying direct current may be configured to supply an alternating current to the vehicle C to charge the battery 5.
  • the 2nd charging device 4 may be a structure based on the CHAdeMO (registered trademark) system.
  • the charge communication control device 1 may include a wired communication unit that performs communication based on the CAN communication protocol instead of the PLC communication with the second charging device 4.
  • FIG. 5 is a block diagram showing a configuration example of a charge communication control system according to a second embodiment.
  • the second power receiving apparatus configuring the charge control system according to the second embodiment can transmit and receive information related to charge control according to a communication protocol based on the wireless LAN standard.
  • the charge communication control device 201 does not include the PLC communication unit 12 and selectively performs wireless communication with the first charging device 3 and the second charging device 204 in the wireless communication unit 11.
  • FIG. 6 is a flowchart showing a processing procedure related to communication control and charge control according to the second embodiment.
  • the control unit 14 of the charge communication control device 201 determines whether the vehicle C travels at a low speed or stops (step S51). If it is determined that the vehicle C is traveling at high speed (step S51: NO), the control unit 14 ends the process. When it is determined that the vehicle C is traveling at a low speed or is stopped (step S51: YES), the control unit 14 searches for an access point and determines whether there is an access point of the first charging device 3 or not. (Step S52).
  • step S52 If it is determined that there is an access point of the first charging device 3 (step S52: YES), the control unit 14 causes the wireless communication unit 11 to start wireless communication with the first charging device 3 (step S53) .
  • step S54 determines whether or not the charging gun is connected (step S54).
  • step S54 searches for an access point and determines whether there is an access point of the second charging device 204 (step S55).
  • step S55 determines processing of step S60 and later, which is described later, that is, processing related to charging by the second charging device 204.
  • step S55: NO When it is determined that there is no access point of the second charging device 204 (step S55: NO) or when it is determined that the charging gun is not connected (step S54: NO), the charging ECU 2 and the first charging device 3 The information related to charge control is transmitted and received between them, and non-contact charge by the electric power non-contact transmitted from the first charger 3 is controlled (step S56).
  • step S57 the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged. When it is determined that the battery 5 is not fully charged (step S57: NO), the charge ECU 2 returns the process to step S54 and continues charge control. If it is determined that the battery 5 is fully charged (step S57: YES), the charge ECU 2 stops noncontact charging by the first charging device 3 (step S58), and ends the process.
  • step S52 determines whether there is an access point of the second charging device 204 (step S59). If it is determined that there is no access point of the second charging device 204 (step S59: NO), the control unit 14 ends the process.
  • step S59: YES the control unit 14 causes the wireless communication unit 11 to start wireless communication with the second charging device 204 (step S60). . Then, it is determined whether or not the charging gun is connected (step S61). If it is determined that the charging gun is not connected (step S61: NO), the control unit 14 ends the process. If it is determined that the charging gun is connected (step S61: YES), the control unit 14 controls the charging of the battery 5 by the second charging device 204 in the same processing procedure as steps S14 to 16 (step S62 to Step S64), finish the process.
  • the charging communication control device 201 switches to wireless communication with the second charging device 204,
  • the second charging device 204 can charge the battery 5.
  • the second charging device 4 may be an automatic connection charging device (ACD).
  • ACD automatic connection charging device
  • the automatically connected charging device is extendable from the pole installed so that the tip is located above the ceiling of the vehicle C when the vehicle C stops at a predetermined stopping position, and can extend downward from the tip of the pole And a folded pantograph.
  • a power reception unit in electrical contact with the pantograph extended from the tip end portion is provided on the ceiling portion of the vehicle C.
  • the automatic connection charging device is a device that supplies power from the pantograph through the power receiving unit of the vehicle C and charges the battery 5.
  • the automatic connection charging device performs wireless communication with the charging communication control device 1 as in the first charging device 3 and transmits and receives various information necessary for charging control.
  • the automatic connection charging device periodically wirelessly transmits a beacon signal including an identifier, a network name, etc., as in the first charging device 3, and the charging communication control device 1 automatically connects by receiving the beacon signal.
  • An access point associated with the charging device can be detected and wireless communication can be established.
  • the charging communication control device 1 and the charging ECU 2 select the charging by the automatic connection charging device and perform the charging control of the battery 5.
  • the charging communication control device 201 wirelessly communicates with the automatic connection charging device. By switching to communication, the battery 5 can be charged by the automatic connection charging device.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

This charging communication control device is provided with: a first communication unit which communicates information pertaining to charging control to and from a first charging device which charges a battery for driving a vehicle by transmitting electric power in a non-contact manner to the vehicle in which the battery is mounted; and a second communication unit which communicates the information pertaining to charging control to and from a second charging device which charges the battery by transmitting electric power through a power feed line. A charging communication control unit is provided with a control unit which controls the communication of the information pertaining to charging control by selecting either of the first communication unit and the second communication unit in such a way that the second communication unit communicates in preference to the first communication unit.

Description

充電通信制御装置及び充電通信制御方法Charge communication control device and charge communication control method
　本発明は充電通信制御装置及び充電通信制御方法に関する。
　本出願は、２０１７年１０月３１日出願の日本出願第２０１７－２１０４６３号に基づく優先権を主張し、前記日本出願に記載された全ての記載内容を援用するものである。 The present invention relates to a charge communication control device and a charge communication control method.
This application claims the priority based on Japanese Patent Application No. 2017-210463 filed on Oct. 31, 2017, and incorporates all the contents described in the Japanese application.
　電動モータ及びエンジンを併用したプラグインハイブリッド自動車（PHEV: Plug-in Hybrid Electric Vehicle）、エンジンを備えず、電動モータで駆動する電気自動車（EV: Electric Vehicle）が普及しつつある。プラグインハイブリッド自動車、電気自動車等の車両は、電動モータを駆動するバッテリを備えている。バッテリの充電は、ガソリンスタンド、高速道路サービスエリア、その他の充電ステーションに設置された充電装置にて行われる。充電装置は、車両に接続された充電ケーブルを通じて電力を伝送することにより、バッテリを充電する。また、磁界共鳴方式のワイヤレス電力伝送技術を用いて車両へ電力を非接触で伝送し、バッテリを充電するワイヤレス充電装置がある。 Plug-in hybrid vehicles (PHEV: Plug-in Hybrid Electric Vehicle) using both an electric motor and an engine, and electric vehicles (EV: Electric Vehicle) driven by an electric motor without an engine are becoming widespread. Vehicles such as plug-in hybrid vehicles and electric vehicles are equipped with a battery for driving an electric motor. Charging of the battery is performed at a charging station installed at a gas station, an expressway service area, and other charging stations. The charging device charges the battery by transmitting power through a charging cable connected to the vehicle. Also, there is a wireless charging device that wirelessly transmits power to a vehicle using a magnetic resonance wireless power transfer technology to charge a battery.
　車両には、バッテリの充電を制御する充電ＥＣＵ及び充電通信制御装置が搭載されている。充電通信制御装置は、充電ＥＣＵによる充電制御に必要な情報を充電装置との間で送受信する装置である。 The vehicle is equipped with a charge ECU that controls charging of a battery and a charge communication control device. The charge communication control device is a device that transmits and receives information necessary for charge control by the charge ECU with the charge device.
特開２０１７－３４９３８号公報Unexamined-Japanese-Patent No. 2017-34938
　本態様に係る充電通信制御装置は、車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とを備え、前記第１通信部及び前記第２通信部による通信を制御する充電通信制御装置であって、前記第２通信部が前記第１通信部に優先して通信を行うように、前記第１通信部及び前記第２通信部のいずれか一つを選択して充電制御に係る情報の通信を制御する制御部を備える。 The charge communication control device according to the present aspect communicates information related to charge control with the first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving the vehicle. And a second communication unit for communicating information related to charge control between the first communication unit and the second charging device for charging the battery by transmitting power through the feeder line, the first communication unit A first communication unit and a second communication unit configured to control communication performed by the second communication unit and the second communication unit such that the second communication unit performs communication prior to the first communication unit. A control unit is provided that selects one of the communication units and controls communication of information related to charging control.
　本態様に係る充電通信制御方法は、車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とによる通信を制御する充電通信制御方法であって、前記給電線による前記第２充電装置及び前記車両の接続を検出し、前記第１通信部が前記第１充電装置と通信を行っている場合、前記第２充電装置及び前記車両の接続が検出されたとき、前記第１通信部による通信を停止させ、前記第２通信部による通信を開始させる。 A charge communication control method according to the present aspect communicates information related to charge control with a first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving a vehicle. Charge communication for controlling communication between a first communication unit that performs charging and a second communication unit that communicates information related to charge control between a second charging device that charges the battery by transmitting power through a feeder line In the control method, when the connection of the second charging device and the vehicle by the feed line is detected, and the first communication unit communicates with the first charging device, the second charging device and the second communication device are When the connection of the vehicle is detected, the communication by the first communication unit is stopped, and the communication by the second communication unit is started.
実施形態１に係る充電通信制御システムの構成例を示すブロック図である。FIG. 1 is a block diagram showing a configuration example of a charge communication control system according to a first embodiment. 実施形態１に係る充電通信制御装置の構成例を示すブロック図である。FIG. 2 is a block diagram showing a configuration example of a charge communication control device according to Embodiment 1. 実施形態１に係る通信制御及び充電制御に係る処理手順を示すフローチャートである。It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control. 実施形態１に係る通信制御及び充電制御に係る処理手順を示すフローチャートである。It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control. 実施形態２に係る充電通信制御システムの構成例を示すブロック図である。FIG. 7 is a block diagram showing an exemplary configuration of a charge communication control system according to a second embodiment. 実施形態２に係る通信制御及び充電制御に係る処理手順を示すフローチャートである。It is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 2, and charge control.
［本開示が解決しようとする課題］
　充電ケーブルを用いて充電を行う充電装置と、ワイヤレス充電装置の双方が充電ステーションに設置されている場合、充電通信制御装置はいずれか一つの装置と充電制御に係る通信を行うことになるが、充電効率に基づく通信先の選択が行われていない。 [Problems to be solved by the present disclosure]
If both the charging device that performs charging using the charging cable and the wireless charging device are installed in the charging station, the charging communication control device will communicate with any one device regarding charging control. Selection of communication destination based on charging efficiency is not performed.
　本開示の目的は、複数の充電装置が並設されている場合、充電効率が高い充電装置を選択し、当該充電装置との間で充電制御に係る情報の通信を行うことができる充電通信制御装置及び充電通信制御方法を提供することにある。 The object of the present disclosure is to select a charging device with high charging efficiency when a plurality of charging devices are juxtaposed, and to perform communication of information related to charging control with the charging device. To provide an apparatus and a charge communication control method.
［本開示の効果］
　本開示によれば、複数の充電装置が並設されている場合、充電効率が高い充電装置を選択し、当該充電装置との間で充電制御に係る情報の通信を行うことができる充電通信制御装置を提供することが可能である。 [Effect of the present disclosure]
According to the present disclosure, when a plurality of charging devices are juxtaposed, a charging communication control capable of selecting a charging device with high charging efficiency and communicating information related to charging control with the charging device. It is possible to provide an apparatus.
［本発明の実施形態の説明］
　最初に本発明の実施態様を列記して説明する。また、以下に記載する実施形態の少なくとも一部を任意に組み合わせても良い。 Description of the embodiment of the present invention
First, the embodiments of the present invention will be listed and described. In addition, at least a part of the embodiments described below may be arbitrarily combined.
（１）本態様に係る充電通信制御装置は、車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とを備え、前記第１通信部及び前記第２通信部による通信を制御する充電通信制御装置であって、前記第２通信部が前記第１通信部に優先して通信を行うように、前記第１通信部及び前記第２通信部のいずれか一つを選択して充電制御に係る情報の通信を制御する制御部を備える。 (1) The charge communication control device according to the present aspect relates to charge control between the first device and the first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving a vehicle. And a second communication unit for communicating information related to charging control between a first communication unit for communicating information and a second charging device for charging the battery by transmitting power through a feeder. A charge communication control device for controlling communication by a first communication unit and the second communication unit, wherein the first communication unit and the second communication unit perform communication prior to the first communication unit. A control unit is provided that selects one of the second communication units and controls communication of information related to charging control.
　本態様によれば、充電通信制御装置は、第１通信部及び第２通信部のいずれか一つを選択して充電制御に係る通信を行うところ、第１及び第２通信部の双方が通信可能である場合、第２通信部が第１通信部に優先して通信を行う。第２通信部は第２充電装置による充電制御に必要な情報を通信する。給電線を通じて電力を伝送する第２充電装置は、非接触で電力を伝送する第１充電装置に比べて、より効率的に電力を車両へ伝送し、バッテリを充電することができる。従って、充電通信制御装置は、より効率的な充電を行う充電装置と選択的に通信を行うことができる。 According to this aspect, the charging communication control apparatus selects one of the first communication unit and the second communication unit to perform communication related to charging control, and the first and second communication units communicate. If possible, the second communication unit performs communication prior to the first communication unit. The second communication unit communicates information necessary for charge control by the second charging device. The second charging device that transmits power through the feeder can transmit power to the vehicle more efficiently and charge the battery than the first charging device that transmits power contactlessly. Therefore, the charge communication control device can selectively communicate with the charging device that performs more efficient charging.
（２）前記給電線による前記第２充電装置及び前記車両の接続を検出する接続検出部を備え、前記制御部は、前記第１通信部が前記第１充電装置と通信を行っている場合、前記接続検出部にて接続が検出されたとき、前記第１通信部による通信を停止させ、前記第２通信部による通信を開始させる構成が好ましい。 (2) A connection detection unit that detects connection of the second charging device and the vehicle by the feeder line, and the control unit communicates with the first charging device when the first communication unit communicates with the first charging device. When the connection detection unit detects a connection, it is preferable that the communication by the first communication unit is stopped and the communication by the second communication unit is started.
　本態様によれば、第１通信部による通信を行っている場合、給電線が車両に接続されたとき、ユーザは第２充電装置による充電を意図していると予想されるため、充電通信制御装置は第１通信部による通信を停止させ、第２通信部による通信を開始させる。 According to this aspect, when communication is performed by the first communication unit, it is expected that the user intends to charge by the second charging device when the feeder is connected to the vehicle. The apparatus stops communication by the first communication unit and starts communication by the second communication unit.
（３）前記第１通信部は前記第１充電装置との間で無線通信を行い、前記第２通信部は前記第２充電装置との間で有線通信を行うようにしてある構成が好ましい。 (3) It is preferable that the first communication unit performs wireless communication with the first charging device, and the second communication unit performs wired communication with the second charging device.
　本態様によれば、充電通信制御装置は、非接触充電を行う第１充電装置との間で充電制御に必要な情報を無線通信し、給電線を通じて充電を行う第２充電装置との間で充電制御に必要な情報を有線通信する。 According to this aspect, the charging communication control device wirelessly communicates information necessary for charging control with the first charging device performing non-contact charging, and with the second charging device performing charging through the feed line. Wired communication of information required for charge control.
（４）前記制御部は、前記第１通信部が前記第１充電装置と無線通信を行っており、前記第２通信部による有線通信に切り替える場合、前記第１通信部による無線通信を一時停止させて前記第２通信部による有線通信を開始させ、前記第２通信部による有線通信が確立され、前記第２充電装置による前記バッテリの充電が可能であるとき、前記第１通信部による前記第１充電装置との間の無線通信を切断させる構成が好ましい。 (4) The control unit suspends the wireless communication by the first communication unit when the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit. And the wired communication by the second communication unit is started, and when the wired communication by the second communication unit is established and the charging of the battery by the second charging device is possible, the It is preferable that the wireless communication with one charging device be disconnected.
　本態様によれば、充電通信制御装置は、第１充電装置と無線通信を行っている際、第２充電装置との有線通信に切り替える場合、無線通信を一時停止させて有線通信を開始させ、有線通信が確立され、第２充電装置によるバッテリ充電が可能であるとき、第１充電装置との間の無線通信を切断させる。
　従って、充電通信制御装置は、第２充電装置による充電が可能であることが確定した段階で、無線通信を切断する構成であるため、通信先の無駄な切替を抑えることができる。例えば、無線通信を切断した後、第２充電装置による充電が不能であることが分かり、再び無線通信をやり直すと言った、通信先の切り替え制御を避けることができる。 According to this aspect, when switching to wired communication with the second charging device while performing wireless communication with the first charging device, the charging communication control device suspends wireless communication and starts wired communication. When wired communication is established and battery charging by the second charging device is possible, wireless communication with the first charging device is cut off.
Therefore, since it is the structure which cut | disconnects wireless communication in the step which decided that charge by a 2nd charging device was possible, a charge communication control apparatus can suppress the useless switch of a communication destination. For example, after disconnecting the wireless communication, it is possible to avoid the switching control of the communication destination, which is known to be incapable of charging by the second charging device and to restart the wireless communication again.
（５）前記制御部は、前記第１通信部が前記第１充電装置と無線通信を行っており、前記第２通信部による有線通信に切り替える場合、前記第１通信部による無線通信を一時停止させて前記第２通信部による有線通信を開始させ、前記第２通信部による有線通信が確立されず、又は前記第２充電装置による前記バッテリの充電が不能であるとき、前記第１通信部による無線通信を再開させる構成が好ましい。 (5) The control unit suspends the wireless communication by the first communication unit when the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit. To start wired communication by the second communication unit, and when the wired communication by the second communication unit is not established or when charging of the battery by the second charging device is not possible, the first communication unit A configuration for resuming wireless communication is preferred.
　本態様によれば、充電通信制御装置は、第１充電装置と無線通信を行っている際、第２通信部による有線通信に切り替える場合、無線通信を一時停止させて有線通信を開始させ、有線通信が確立されず、又は第２充電装置による前記バッテリの充電が不能であるとき、第１充電装置との間の無線通信を再開させる。
　従って、充電通信制御装置は、通信先の無駄な切替を抑えることができる。例えば、無線通信を切断した後、第２充電装置による充電が不能であることが分かり、再び無線通信をやり直すと言った、通信先の切り替え制御を避けることができる。 According to this aspect, when switching to wired communication by the second communication unit while performing wireless communication with the first charging device, the charging communication control device suspends wireless communication and starts wired communication, thereby performing wired communication. When communication is not established or charging of the battery by the second charging device is not possible, wireless communication with the first charging device is resumed.
Therefore, the charge communication control device can suppress useless switching of the communication destination. For example, after disconnecting the wireless communication, it is possible to avoid the switching control of the communication destination, which is known to be incapable of charging by the second charging device and to restart the wireless communication again.
（６）本態様に係る充電通信制御方法は、車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とによる通信を制御する充電通信制御方法であって、前記給電線による前記第２充電装置及び前記車両の接続を検出し、前記第１通信部が前記第１充電装置と通信を行っている場合、前記第２充電装置及び前記車両の接続が検出されたとき、前記第１通信部による通信を停止させ、前記第２通信部による通信を開始させる。 (6) The charge communication control method according to the present aspect relates to charge control between the vehicle and the first charging device that charges the battery by transmitting power without contact to the vehicle equipped with the battery for driving the vehicle. Control communication between the first communication unit that communicates information and the second communication unit that communicates information related to charging control between the second charging device that charges the battery by transmitting power through the feeder line Method of controlling the charging communication, wherein the connection of the second charging device and the vehicle by the feed line is detected, and the first charging unit communicates with the first charging device, the second charging being performed. When the connection between the device and the vehicle is detected, the communication by the first communication unit is stopped, and the communication by the second communication unit is started.
　本態様によれば、態様（１）同様、充電通信制御装置は、より効率的な充電を行う充電装置と選択的に通信を行うことができる。 According to this aspect, as in aspect (1), the charging communication control device can selectively communicate with the charging device that performs more efficient charging.
［本発明の実施形態の詳細］
　本発明の実施形態に係る充電通信制御装置及び充電通信制御方法の具体例を図面に基づいて説明する。なお、本発明はこれらの例示に限定されるものではなく、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。また、以下に記載する実施形態の少なくとも一部を任意に組み合わせても良い。 Details of the Embodiment of the Present Invention
Specific examples of a charge communication control device and a charge communication control method according to an embodiment of the present invention will be described based on the drawings. The present invention is not limited to these exemplifications, is shown by the claims, and is intended to include all modifications within the scope and meaning equivalent to the claims. In addition, at least a part of the embodiments described below may be arbitrarily combined.
（実施形態１）
　図１は実施形態１に係る充電通信制御システムの構成例を示すブロック図である。実施形態１の充電通信制御システムは、車両Ｃに搭載された充電通信制御装置１及び充電ＥＣＵ２と、充電ステーションに設置された第１充電装置３及び第２充電装置４とを備える。 (Embodiment 1)
FIG. 1 is a block diagram showing a configuration example of a charge communication control system according to a first embodiment. The charge communication control system of the first embodiment includes a charge communication control device 1 and a charge ECU 2 mounted on a vehicle C, and a first charge device 3 and a second charge device 4 installed at a charge station.
　第１充電装置３は、車両駆動用のバッテリ５を搭載したプラグインハイブリッド自動車、電気自動車等の車両Ｃへ非接触で電力を送電する送電パッド３１を備え、バッテリ５の非接触充電を行う装置である。第１充電装置３は、充電通信制御装置１と無線通信を行う機能を有する。車両Ｃには、送電パッド３１から送電された電力を受電する受電パッド６が設けられており、受電パッド６により受電した電力によってバッテリ５が充電される。 The first charging device 3 includes a power transmission pad 31 for transmitting power without contact to a vehicle C such as a plug-in hybrid vehicle equipped with a battery 5 for driving the vehicle or an electric vehicle, and performs the contactless charging of the battery 5 It is. The first charging device 3 has a function of performing wireless communication with the charging communication control device 1. Vehicle C is provided with power reception pad 6 for receiving the power transmitted from power transmission pad 31, and battery 5 is charged with the power received by power reception pad 6.
　第２充電装置４は、先端部に充電ガンが設けられた充電ケーブル４１を備え、充電ケーブル４１を介して直流の電力を車両Ｃへ伝送することによりバッテリ５を充電する装置である。第２充電装置４は、例えばCombined Charging System方式に準拠しており、充電ケーブル４１は、電力を伝送するための給電線、コントロールパイロット（ＣＬＰＴ）信号を送信するための制御線及び基準電位線を備える。車両Ｃには充電ガンが接続されるインレット７が設けられている。インレット７には車内給電線８１、車内制御線８２及び車内基準電位線８３（図２参照）が接続されており、インレット７に充電ガンが接続されることによって充電ケーブル４１の給電線、制御線及び基準電位線と、車内給電線８１、車内制御線８２及び車内基準電位線８３とが電気的に接続される。
　車内給電線８１はバッテリ５に接続されており、バッテリ５は充電ケーブル４１の給電線を通じて第２充電装置４から伝送された電力にて充電される。
　車内制御線８２及び車内基準電位線８３は充電通信制御装置１を介して充電ＥＣＵ２に接続されている。コントロールパイロット信号は、例えば１ｋＨｚの矩形波信号であり、第２充電装置４及び充電ＥＣＵ２は、基準電位に対する矩形波信号の電位、矩形波信号の有無等によって、第２充電装置４及び車両Ｃの接続確認、充電の可否、充電状態等、充電に関する情報を送受信する。
　また、第２充電装置４は、給電線を用いたＰＬＣ通信にて充電通信制御装置１と有線通信を行う機能を有する。 The second charging device 4 is a device including a charging cable 41 provided with a charging gun at its tip and transmitting the DC power to the vehicle C via the charging cable 41 to charge the battery 5. The second charging device 4 conforms to, for example, the Combined Charging System method, and the charging cable 41 includes a feed line for transmitting power, a control line for transmitting a control pilot (CLPT) signal, and a reference potential line. Prepare. The vehicle C is provided with an inlet 7 to which a charging gun is connected. The inlet 7 is connected to the in-vehicle feed line 81, the in-vehicle control line 82, and the in-vehicle reference potential line 83 (see FIG. 2), and the charge gun is connected to the inlet 7 to feed and control the charging cable 41. The reference potential line is electrically connected to the in-vehicle feed line 81, the in-vehicle control line 82, and the in-vehicle reference potential line 83.
The in-vehicle feed line 81 is connected to the battery 5, and the battery 5 is charged with the power transmitted from the second charging device 4 through the feed line of the charging cable 41.
The in-vehicle control line 82 and the in-vehicle reference potential line 83 are connected to the charge ECU 2 via the charge communication control device 1. The control pilot signal is, for example, a rectangular wave signal of 1 kHz, and the second charging device 4 and the charging ECU 2 are controlled by the second charging device 4 and the vehicle C depending on the potential of the rectangular wave signal with respect to the reference potential and the presence or absence of the rectangular wave signal. It sends and receives information on charging, such as connection confirmation, charging availability, charging status, etc.
Further, the second charging device 4 has a function of performing wired communication with the charge communication control device 1 by PLC communication using a feed line.
　充電ＥＣＵ２は、充電通信制御装置１を用いて、第１充電装置３及び第２充電装置４との間で充電制御に必要な情報を送受信する。例えば、充電ＥＣＵ２は、バッテリ５の充電を開始する際、バッテリ５の情報を充電通信制御装置１へ送信する。充電通信制御装置１は、充電ＥＣＵ２から送信された当該情報を受信し、受信した情報を所定の通信プロトコルに変換し、第１充電装置３及び第２充電装置４へ無線又は有線で送信する。また充電通信制御装置１は第１充電装置３及び第２充電装置４から無線又は有線で送信された情報を受信した場合、受信した情報を通信プロトコル変換し、充電ＥＣＵ２へ送信する。
　充電ＥＣＵ２は、充電通信制御装置１を通じて第１充電装置３との間で通信を行いながらバッテリ５の状態を管理し、受電パッド６からバッテリ５への送電ないし充電を制御する。
　また、充電ＥＣＵ２は、充電通信制御装置１を通じて第２充電装置４との間で通信を行いながらバッテリ５の状態を管理し、第２充電装置４によるバッテリ５への送電ないし充電を制御する。 The charge ECU 2 transmits and receives information necessary for charge control between the first charge device 3 and the second charge device 4 using the charge communication control device 1. For example, when charging of the battery 5 is started, the charging ECU 2 transmits information of the battery 5 to the charging communication control device 1. The charging communication control device 1 receives the information transmitted from the charging ECU 2, converts the received information into a predetermined communication protocol, and transmits the information to the first charging device 3 and the second charging device 4 wirelessly or by wire. When the charge communication control device 1 receives the information transmitted wirelessly or by wire from the first charging device 3 and the second charging device 4, it converts the received information into a communication protocol, and transmits it to the charging ECU 2.
The charge ECU 2 manages the state of the battery 5 while communicating with the first charge device 3 through the charge communication control device 1, and controls power transmission or charge from the power receiving pad 6 to the battery 5.
Further, the charge ECU 2 manages the state of the battery 5 while communicating with the second charge device 4 through the charge communication control device 1 and controls power transmission or charge to the battery 5 by the second charge device 4.
　図２は、実施形態１に係る充電通信制御装置１の構成例を示すブロック図である。充電通信制御装置１は、第１充電装置３との間で無線通信を行う無線通信部１１と、第２充電装置４との間で有線通信、例えばＰＬＣ通信を行うＰＬＣ通信部１２と、ＣＡＮ通信部１３と、制御部１４と、接続検出部１５とを備える。 FIG. 2 is a block diagram showing a configuration example of the charge communication control device 1 according to the first embodiment. The charge communication control device 1 includes a wireless communication unit 11 that performs wireless communication with the first charging device 3 and a PLC communication unit 12 that performs wired communication, for example, PLC communication, with the second charging device 4, and CAN A communication unit 13, a control unit 14, and a connection detection unit 15 are provided.
　制御部１４は、ＣＰＵ、ＲＯＭ、ＲＡＭ、入出力インタフェース等を有するコンピュータであり、無線通信部１１、ＰＬＣ通信部１２及びＣＡＮ通信部１３による通信を制御する。 The control unit 14 is a computer having a CPU, a ROM, a RAM, an input / output interface and the like, and controls communication by the wireless communication unit 11, the PLC communication unit 12, and the CAN communication unit 13.
　無線通信部１１は、第１充電装置３との間で所定の無線ＬＡＮ規格に準拠した無線通信を行う回路であり、無線通信は制御部１４によって制御される。 The wireless communication unit 11 is a circuit that performs wireless communication with the first charging device 3 in accordance with a predetermined wireless LAN standard, and the wireless communication is controlled by the control unit 14.
　ＰＬＣ通信部１２は、車内制御線８２及び車内基準電位線８３にそれぞれ接続されており、車内制御線８２及び車内基準電位線８３を用いて、充電に関する情報を車両Ｃとの間で送受信する。ＰＬＣ通信部１２は、コントロールパイロット信号よりも高周波の差動信号、例えば２～３０ＭＨｚの差動信号を、該コントロールパイロット信号に重畳させることにより、第２充電装置４と通信を行う。ＰＬＣ通信部１２による有線通信は制御部１４によって制御される。 The PLC communication unit 12 is connected to the in-vehicle control line 82 and the in-vehicle reference potential line 83, and transmits and receives information on charging to and from the vehicle C using the in-vehicle control line 82 and the in-vehicle reference potential line 83. The PLC communication unit 12 communicates with the second charging device 4 by superimposing a differential signal having a frequency higher than that of the control pilot signal, for example, a differential signal of 2 to 30 MHz on the control pilot signal. The wired communication by the PLC communication unit 12 is controlled by the control unit 14.
　ＰＬＣ通信部１２は、コントロールパイロット信号に重畳した差動信号を、該コントロールパイロット信号から分離するカップリングコンデンサ１２ａ及びカップリングトランス１２ｂと、差動信号の送受信を行う通信回路１２ｃとを備える。
　車内制御線８２及び車内基準電位線８３はカップリングコンデンサ１２ａを介してカップリングトランス１２ｂに接続されている。カップリングコンデンサ１２ａは、コントロールパイロット信号に対しては、ハイインピーダンスとなり、差動信号に対しては、ローインピーダンスとなる。カップリングコンデンサ１２ａ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。
　カップリングトランス１２ｂは、一次コイルと、当該一次コイルに磁気結合した二次コイルを有する。一次コイルの両端には、車内制御線８２及び車内基準電位線８３がカップリングコンデンサ１２ａを介して接続されている。二次コイルの両端は通信回路１２ｃに接続されている。通信回路１２ｃは、差動信号の周波数帯域外の信号を遮断するバンドパスフィルタを有しており、カップリングコンデンサ１２ａ及びカップリングトランス１２ｂによって分離され、バンドパスフィルタを通過した差動信号を受信する。また、通信回路１２ｃは、送信する信号を二次コイルに与えることによって、差動信号の送信を行う。
　ＰＬＣ通信によれば、コントロールパイロット信号に比べ、より多くの情報を送受信することができる。 The PLC communication unit 12 includes a coupling capacitor 12a and a coupling transformer 12b for separating the differential signal superimposed on the control pilot signal from the control pilot signal, and a communication circuit 12c for transmitting and receiving the differential signal.
The in-vehicle control line 82 and the in-vehicle reference potential line 83 are connected to the coupling transformer 12b via the coupling capacitor 12a. The coupling capacitor 12a has a high impedance for the control pilot signal and a low impedance for the differential signal. As the coupling capacitor 12a, for example, a capacitor having a capacitance of 1 nF is used.
The coupling transformer 12 b has a primary coil and a secondary coil magnetically coupled to the primary coil. An in-vehicle control line 82 and an in-vehicle reference potential line 83 are connected to both ends of the primary coil via a coupling capacitor 12 a. Both ends of the secondary coil are connected to the communication circuit 12c. The communication circuit 12c has a band pass filter for blocking signals outside the frequency band of differential signals, and receives the differential signal separated by the coupling capacitor 12a and the coupling transformer 12b and passed through the band pass filter. Do. Further, the communication circuit 12c transmits a differential signal by giving a signal to be transmitted to the secondary coil.
PLC communication can transmit and receive more information than control pilot signals.
　ＣＡＮ通信部１３は、ＣＡＮ通信線１０にて充電ＥＣＵ２に接続されている。ＣＡＮ通信部１３は、充電ＥＣＵ２との間でＣＡＮ－ＦＤ規格に準拠した通信を行うことにより、バッテリ５情報等、充電に必要な情報を充電ＥＣＵ２から受信し、受信した情報を無線通信部１１又はＰＬＣ通信部１２に与える。無線通信部１１が第１充電装置３と通信を行っている場合、当該無線通信部１１は、ＣＡＮ通信部１３にて受信した情報を第１充電装置３へ無線送信する。ＰＬＣ通信部１２が第２充電装置４と通信を行っている場合、当該ＰＬＣ通信部１２は、ＣＡＮ通信部１３にて受信した情報を第２充電装置４へＰＬＣ通信にて送信する。
　また、第１充電装置３から充電制御に必要な情報を無線通信部１１が受信した場合、無線通信部１１は当該情報をＣＡＮ通信部１３に与える。同様に、第２充電装置４から充電制御に必要な情報をＰＬＣ通信部１２が受信した場合、ＰＬＣ通信部１２は当該情報をＣＡＮ通信部１３に与える。ＣＡＮ通信部１３は、無線通信部１１又はＰＬＣ通信部１２から与えられた情報を充電ＥＣＵ２へ送信する。
　更にＣＡＮ通信部１３は、他のＥＣＵと通信を行うことができ、車両Ｃの速度に係る情報を受信する。制御部１４は、ＣＡＮ通信部１３にて受信した車両Ｃの速度に係る情報に基づいて、車両Ｃが停車状態にあるか否か、車両Ｃが低速で走行しているか否かを判定することができる。 The CAN communication unit 13 is connected to the charge ECU 2 via a CAN communication line 10. The CAN communication unit 13 communicates with the charge ECU 2 in accordance with the CAN-FD standard to receive information necessary for charging, such as battery 5 information, from the charge ECU 2, and the received information is transmitted to the wireless communication unit 11. Alternatively, it is given to the PLC communication unit 12. When the wireless communication unit 11 communicates with the first charging device 3, the wireless communication unit 11 wirelessly transmits the information received by the CAN communication unit 13 to the first charging device 3. When the PLC communication unit 12 communicates with the second charging device 4, the PLC communication unit 12 transmits the information received by the CAN communication unit 13 to the second charging device 4 by PLC communication.
When the wireless communication unit 11 receives information necessary for charge control from the first charging device 3, the wireless communication unit 11 provides the information to the CAN communication unit 13. Similarly, when the PLC communication unit 12 receives information necessary for charge control from the second charging device 4, the PLC communication unit 12 provides the information to the CAN communication unit 13. The CAN communication unit 13 transmits the information given from the wireless communication unit 11 or the PLC communication unit 12 to the charging ECU 2.
Furthermore, the CAN communication unit 13 can communicate with other ECUs, and receives information on the speed of the vehicle C. Based on the information on the speed of the vehicle C received by the CAN communication unit 13, the control unit 14 determines whether the vehicle C is in a stopped state, and whether the vehicle C is traveling at a low speed. Can.
　接続検出部１５はインレット７に接続されており、充電ガンの接続状態を検出し、検出結果を制御部１４へ出力する。例えば、インレット７には充電ガンの接続状態に応じて電位が変化する導電線が設けられており、接続検出部１５は当該導電線の電位を検出することによって、充電ガンの脱着を検出する。 The connection detection unit 15 is connected to the inlet 7, detects the connection state of the charging gun, and outputs the detection result to the control unit 14. For example, the inlet 7 is provided with a conductive wire whose potential changes in accordance with the connection state of the charging gun, and the connection detection unit 15 detects the potential of the conductive wire to detect the desorption of the charging gun.
　図３及び図４は実施形態１に係る通信制御及び充電制御に係る処理手順を示すフローチャートである。充電通信制御装置１の制御部１４は、ＣＡＮ通信部１３にて、車速に係る情報を受信し、車両Ｃが低速で走行し、又は停車したか否かを判定する（ステップＳ１１）。例えば、時速１０ｋｍ／時未満である場合、低速であると判定する。車両Ｃが高速で走行していると判定した場合（ステップＳ１１：ＮＯ）、制御部１４は処理を終える。車両Ｃが低速で走行し、又は停車していると判定した場合（ステップＳ１１：ＹＥＳ）、制御部１４は、接続検出部１５から出力された検出結果に基づいて、充電ガンが車両Ｃのインレット７に接続されたか否かを判定する（ステップＳ１２）。充電ガンが接続されたと判定した場合（ステップＳ１２：ＹＥＳ）、制御部１４は、ＰＬＣ通信部１２にて第２充電装置４との間でＰＬＣ通信を開始させる（ステップＳ１３）。 FIG.3 and FIG.4 is a flowchart which shows the process sequence which concerns on communication control which concerns on Embodiment 1, and charge control. The control unit 14 of the charge communication control device 1 receives the information related to the vehicle speed at the CAN communication unit 13, and determines whether the vehicle C travels at a low speed or stops (step S11). For example, if the speed is less than 10 km / h, it is determined that the speed is low. If it is determined that the vehicle C is traveling at a high speed (step S11: NO), the control unit 14 ends the process. When it is determined that the vehicle C is traveling at a low speed or is stopped (step S11: YES), the control unit 14 controls the inlet of the vehicle C based on the detection result output from the connection detection unit 15 It is determined whether it is connected to 7 (step S12). If it is determined that the charging gun is connected (step S12: YES), the control unit 14 causes the PLC communication unit 12 to start PLC communication with the second charging device 4 (step S13).
　充電ＥＣＵ２は、充電通信制御装置１にて第２充電装置４との間で充電制御に係る情報を送受信し、第２充電装置４から充電ケーブル４１を通じて伝送された電力による充電を制御する（ステップＳ１４）。次いで、充電ＥＣＵ２はバッテリ５の状態を監視し、バッテリ５が満充電状態であるか否かを判定する（ステップＳ１５）。バッテリ５が満充電状態で無いと判定した場合（ステップＳ１５：ＮＯ）、充電ＥＣＵ２は処理をステップＳ１４へ戻し、充電制御を継続する。バッテリ５が満充電状態であると判定した場合（ステップＳ１５：ＹＥＳ）、充電ＥＣＵ２は第２充電装置４による充電を停止し（ステップＳ１６）、処理を終える。 The charge ECU 2 transmits / receives information relating to charge control to / from the second charge device 4 by the charge communication control device 1, and controls charge by the power transmitted from the second charge device 4 through the charge cable 41 (step S14). Next, the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged (step S15). If it is determined that the battery 5 is not fully charged (step S15: NO), the charge ECU 2 returns the process to step S14 and continues charge control. If it is determined that the battery 5 is fully charged (step S15: YES), the charge ECU 2 stops charging by the second charging device 4 (step S16), and the process ends.
　ステップＳ１２において、充電ガンが接続されていないと判定した場合（ステップＳ１２：ＮＯ）、制御部１４は、アクセスポイントを探索し、第１充電装置３のアクセスポイントがあるか否かを判定する（ステップＳ１７）。第１充電装置３は、自身が非接触充電装置であることを示す識別子、ネットワーク名等を含むビーコン信号を定期的に無線送信しており、充電通信制御装置１は、ビーコン信号を受信し、ビーコン信号に含まれる情報に基づいて、第１充電装置３のアクセスポイントがあるか否かを判定することができる。 In step S12, when it is determined that the charging gun is not connected (step S12: NO), the control unit 14 searches for an access point and determines whether there is an access point of the first charging device 3 (step S12). Step S17). The first charging device 3 periodically wirelessly transmits a beacon signal including an identifier indicating that the device is a non-contact charging device, a network name, etc. The charging communication control device 1 receives the beacon signal, Based on the information included in the beacon signal, it can be determined whether there is an access point of the first charging device 3 or not.
　第１充電装置３のアクセスポイントが無いと判定した場合（ステップＳ１７：ＮＯ）、制御部１４は、処理を終える。第１充電装置３のアクセスポイントがあると判定した場合（ステップＳ１７：ＹＥＳ）、制御部１４は、無線通信部１１にて第１充電装置３との間で無線通信を開始させる（ステップＳ１８）。次いで、制御部１４は充電ガンが接続されたか否かを判定する（ステップＳ１９）。充電ガンが接続されていないと判定した場合（ステップＳ１９：ＮＯ）、充電ＥＣＵ２は、第１充電装置３との間で充電制御に係る情報を送受信し、第１充電装置３から非接触伝送された電力による非接触充電を行う（ステップＳ２０）。次いで、充電ＥＣＵ２はバッテリ５の状態を監視し、バッテリ５が満充電状態であるか否かを判定する（ステップＳ２１）。バッテリ５が満充電状態で無いと判定した場合（ステップＳ２１：ＮＯ）、充電ＥＣＵ２は処理をステップＳ１９へ戻し、充電制御を継続する。バッテリ５が満充電状態であると判定した場合（ステップＳ２１：ＹＥＳ）、充電ＥＣＵ２は第１充電装置３による非接触充電を停止し（ステップＳ２２）、処理を終える。 If it is determined that there is no access point of the first charging device 3 (step S17: NO), the control unit 14 ends the process. If it is determined that there is an access point of the first charging device 3 (step S17: YES), the control unit 14 causes the wireless communication unit 11 to start wireless communication with the first charging device 3 (step S18) . Next, the control unit 14 determines whether or not the charging gun is connected (step S19). When it is determined that the charging gun is not connected (step S19: NO), the charging ECU 2 transmits / receives information related to charging control to / from the first charging device 3, and contactless transmission is performed from the first charging device 3 Non-contact charging is performed using the stored power (step S20). Next, the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged (step S21). When it is determined that the battery 5 is not fully charged (step S21: NO), the charge ECU 2 returns the process to step S19 and continues charge control. If it is determined that the battery 5 is in a fully charged state (step S21: YES), the charge ECU 2 stops noncontact charging by the first charging device 3 (step S22), and ends the process.
　ステップＳ１９で充電ガンが接続されたと判定した場合（ステップＳ１９：ＹＥＳ）、制御部１４は、非接触充電を停止させる信号を充電ＥＣＵ２へ送信し、非接触充電を停止させる（ステップＳ２３）。そして、制御部１４は、無線通信部１１による無線通信を一時停止させ（ステップＳ２４）、ＰＬＣ通信部１２による通信を開始させる（ステップＳ２５）。次いで、制御部１４は、第２充電装置４との間で通信を確立し、第２充電装置４による充電が可能であるか否かを判定する（ステップＳ２６）。具体的には、充電ＥＣＵ２が第２充電装置４による充電が可能であるか否かを判定し、判定結果を充電通信制御装置１へ送信する。充電通信制御装置１は、充電ＥＣＵ２の判定結果を参照し、第２充電装置４による充電が可能か否かを判定する。 When it is determined in step S19 that the charging gun is connected (step S19: YES), the control unit 14 transmits a signal to stop the noncontact charging to the charging ECU 2 to stop the noncontact charging (step S23). Then, the control unit 14 suspends the wireless communication by the wireless communication unit 11 (step S24), and starts the communication by the PLC communication unit 12 (step S25). Next, the control unit 14 establishes communication with the second charging device 4 and determines whether charging by the second charging device 4 is possible (step S26). Specifically, charging ECU 2 determines whether or not charging by second charging device 4 is possible, and transmits the determination result to charging communication control device 1. The charge communication control device 1 refers to the determination result of the charge ECU 2 and determines whether charging by the second charging device 4 is possible.
　第２充電装置４による充電が不能であると判定した場合（ステップＳ２６：ＮＯ）、制御部１４は、無線通信部１１による無線通信を再開させ（ステップＳ３０）、処理をステップＳ２０へ戻し、第１充電装置３による非接触充電を再開させる。 When it is determined that charging by the second charging device 4 is not possible (step S26: NO), the control unit 14 resumes wireless communication by the wireless communication unit 11 (step S30), and returns the process to step S20. 1. The noncontact charging by the charging device 3 is resumed.
　第２充電装置４による充電が可能であると判定した場合（ステップＳ２６：ＹＥＳ）、制御部１４は、無線通信部１１による無線通信を切断する（ステップＳ２７）。次いで、ステップＳ１４～１６と同様の処理手順で、第２充電装置４によるバッテリ５の充電を制御し（ステップＳ２８～ステップＳ３０）、処理を終える。 When it is determined that charging by the second charging device 4 is possible (step S26: YES), the control unit 14 disconnects wireless communication by the wireless communication unit 11 (step S27). Next, the charging of the battery 5 by the second charging device 4 is controlled in the same processing procedure as in steps S14 to S16 (steps S28 to S30), and the process ends.
　実施形態１に係る充電通信制御装置１及び充電通信制御方法によれば、第１充電装置３及び第２充電装置４と通信が可能である場合、充電効率が高い第２充電装置４を選択し、当該第２充電装置４との間で充電制御に係る情報の通信を行うことができる。従って、充電ＥＣＵ２は、より充電効率が高い第２充電装置４と通信を行い、バッテリ５を充電することができる。 According to the charge communication control device 1 and the charge communication control method according to the first embodiment, when communication with the first charging device 3 and the second charging device 4 is possible, the second charging device 4 having high charging efficiency is selected. Communication of information related to charging control can be performed with the second charging device 4. Therefore, the charging ECU 2 can communicate with the second charging device 4 with higher charging efficiency to charge the battery 5.
　特に、本実施形態１によれば、充電通信制御装置１は第１充電装置３と無線通信を行っている場合、充電ガンがインレット７に接続されたとき、ユーザが充電ケーブル４１を用いた充電を意図していると推定され、より充電効率が高い第２充電装置４との有線通信に切り替えることができる。 In particular, according to the first embodiment, when the charge communication control device 1 performs wireless communication with the first charge device 3 and the charge gun is connected to the inlet 7, the user charges using the charge cable 41. Can be switched to wired communication with the second charging device 4 with higher charging efficiency.
　また、無線通信から有線通信に切り替える際、第２充電装置４とのＰＬＣ通信を試行し、第２充電装置４との通信が確立され、第２充電装置４による充電が可能である場合、第１充電装置３との無線通信を切断し、第２充電装置４との有線通信に移行する。第２充電装置４との通信が確立されず、又は第２充電装置４による充電が不能である場合、第１充電装置３との無線通信を再開させる。従って、第２充電装置４による充電が不能な場合に、無線通信の切断及び再接続と言った無駄な通信処理を回避することができる。 Moreover, when switching from wireless communication to wired communication, PLC communication with the second charging device 4 is tried, communication with the second charging device 4 is established, and charging by the second charging device 4 is possible. The wireless communication with the first charging device 3 is disconnected, and the communication with the second charging device 4 is shifted to wired communication. If communication with the second charging device 4 is not established or charging by the second charging device 4 is not possible, wireless communication with the first charging device 3 is resumed. Therefore, when the second charging device 4 can not charge, it is possible to avoid useless communication processing such as disconnection and reconnection of wireless communication.
　なお、本実施形態１においては、直流を供給する第２充電装置４を説明したが、第２充電装置４は交流を車両Ｃに供給してバッテリ５を充電する構成であっても良い。 In the first embodiment, although the second charging device 4 for supplying direct current is described, the second charging device 4 may be configured to supply an alternating current to the vehicle C to charge the battery 5.
　また、Combined Charging System方式に準拠した第２充電装置４を説明したが、第２充電装置４はCHAdeMO（登録商標）方式に準拠した構成であっても良い。この場合、充電通信制御装置１は、第２充電装置４との間で、ＰＬＣ通信に代えて、ＣＡＮ通信プロトコルに準拠した通信を行う有線通信部を備えると良い。 Moreover, although the 2nd charging device 4 based on the Combined Charging System system was demonstrated, the 2nd charging device 4 may be a structure based on the CHAdeMO (registered trademark) system. In this case, the charge communication control device 1 may include a wired communication unit that performs communication based on the CAN communication protocol instead of the PLC communication with the second charging device 4.
（実施形態２）
　実施形態２に係る充電通信システムは、第２充電装置２０４との通信が無線通信である点が実施形態１と異なるため、以下では主に上記相違点を説明する。その他の工程及び作用効果は実施形態と同様であるため、対応する箇所には同様の符号を付して詳細な説明を省略する。
　図５は実施形態２に係る充電通信制御システムの構成例を示すブロック図である。実施形態２に係る充電制御システムを構成する第２受電装置は、充電制御に係る情報を無線ＬＡＮ規格に準拠した通信プロトコルに従って送受信することができる。充電通信制御装置２０１は、ＰＬＣ通信部１２を備えず、無線通信部１１にて第１充電装置３及び第２充電装置２０４と選択的に無線通信を行う。 Second Embodiment
The charging communication system according to the second embodiment differs from the first embodiment in that the communication with the second charging device 204 is a wireless communication, so the following mainly describes the differences. The other steps and effects are the same as those of the embodiment, and therefore the corresponding parts are denoted by the same reference numerals and the detailed description will be omitted.
FIG. 5 is a block diagram showing a configuration example of a charge communication control system according to a second embodiment. The second power receiving apparatus configuring the charge control system according to the second embodiment can transmit and receive information related to charge control according to a communication protocol based on the wireless LAN standard. The charge communication control device 201 does not include the PLC communication unit 12 and selectively performs wireless communication with the first charging device 3 and the second charging device 204 in the wireless communication unit 11.
　図６は実施形態２に係る通信制御及び充電制御に係る処理手順を示すフローチャートである。実施形態２に係る充電通信制御装置２０１の制御部１４は、車両Ｃが低速で走行し、又は停車したか否かを判定する（ステップＳ５１）。車両Ｃが高速で走行していると判定した場合（ステップＳ５１：ＮＯ）、制御部１４は処理を終える。車両Ｃが低速で走行し、又は停車していると判定した場合（ステップＳ５１：ＹＥＳ）、制御部１４は、アクセスポイントを探索し、第１充電装置３のアクセスポイントがあるか否かを判定する（ステップＳ５２）。第１充電装置３のアクセスポイントがあると判定した場合（ステップＳ５２：ＹＥＳ）、制御部１４は、無線通信部１１にて第１充電装置３との間で無線通信を開始させる（ステップＳ５３）。次いで、制御部１４は充電ガンが接続されたか否かを判定する（ステップＳ５４）。充電ガンが接続されたと判定した場合（ステップＳ５４：ＹＥＳ）、制御部１４は、アクセスポイントを探索し、第２充電装置２０４のアクセスポイントがあるか否かを判定する（ステップＳ５５）。第２充電装置２０４のアクセスポイントがあると判定した場合（ステップＳ５５：ＹＥＳ）、制御部１４は、後述のステップＳ６０以下の処理、即ち第２充電装置２０４による充電に係る処理を実行する。第２充電装置２０４のアクセスポイントが無いと判定した場合（ステップＳ５５：ＮＯ）、又は充電ガンが接続されていないと判定した場合（ステップＳ５４：ＮＯ）、充電ＥＣＵ２は、第１充電装置３との間で充電制御に係る情報を送受信し、第１充電装置３から非接触伝送された電力による非接触充電を制御する（ステップＳ５６）。次いで、充電ＥＣＵ２はバッテリ５の状態を監視し、バッテリ５が満充電状態であるか否かを判定する（ステップＳ５７）。バッテリ５が満充電状態で無いと判定した場合（ステップＳ５７：ＮＯ）、充電ＥＣＵ２は処理をステップＳ５４へ戻し、充電制御を継続する。バッテリ５が満充電状態であると判定した場合（ステップＳ５７：ＹＥＳ）、充電ＥＣＵ２は第１充電装置３による非接触充電を停止し（ステップＳ５８）、処理を終える。 FIG. 6 is a flowchart showing a processing procedure related to communication control and charge control according to the second embodiment. The control unit 14 of the charge communication control device 201 according to the second embodiment determines whether the vehicle C travels at a low speed or stops (step S51). If it is determined that the vehicle C is traveling at high speed (step S51: NO), the control unit 14 ends the process. When it is determined that the vehicle C is traveling at a low speed or is stopped (step S51: YES), the control unit 14 searches for an access point and determines whether there is an access point of the first charging device 3 or not. (Step S52). If it is determined that there is an access point of the first charging device 3 (step S52: YES), the control unit 14 causes the wireless communication unit 11 to start wireless communication with the first charging device 3 (step S53) . Next, the control unit 14 determines whether or not the charging gun is connected (step S54). When it is determined that the charging gun is connected (step S54: YES), the control unit 14 searches for an access point and determines whether there is an access point of the second charging device 204 (step S55). When it is determined that there is an access point of the second charging device 204 (step S55: YES), the control unit 14 executes processing of step S60 and later, which is described later, that is, processing related to charging by the second charging device 204. When it is determined that there is no access point of the second charging device 204 (step S55: NO) or when it is determined that the charging gun is not connected (step S54: NO), the charging ECU 2 and the first charging device 3 The information related to charge control is transmitted and received between them, and non-contact charge by the electric power non-contact transmitted from the first charger 3 is controlled (step S56). Next, the charge ECU 2 monitors the state of the battery 5 and determines whether the battery 5 is fully charged (step S57). When it is determined that the battery 5 is not fully charged (step S57: NO), the charge ECU 2 returns the process to step S54 and continues charge control. If it is determined that the battery 5 is fully charged (step S57: YES), the charge ECU 2 stops noncontact charging by the first charging device 3 (step S58), and ends the process.
　ステップＳ５２において第１充電装置３のアクセスポイントが無いと判定した場合（ステップＳ５２：ＮＯ）、制御部１４は第２充電装置２０４のアクセスポイントがあるか否かを判定する（ステップＳ５９）。第２充電装置２０４のアクセスポイントが無いと判定した場合（ステップＳ５９：ＮＯ）、制御部１４は処理を終える。第２充電装置２０４のアクセスポイントがあると判定した場合（ステップＳ５９：ＹＥＳ）、制御部１４は、無線通信部１１にて第２充電装置２０４との間で無線通信を開始させる（ステップＳ６０）。そして、充電ガンが接続されているか否かを判定する（ステップＳ６１）。充電ガンが接続されていないと判定した場合（ステップＳ６１：ＮＯ）、制御部１４は処理を終える。充電ガンが接続されていると判定した場合（ステップＳ６１：ＹＥＳ）、制御部１４は、ステップＳ１４～１６と同様の処理手順で第２充電装置２０４によるバッテリ５の充電を制御し（ステップＳ６２～ステップＳ６４）、処理を終える。 When it is determined in step S52 that there is no access point of the first charging device 3 (step S52: NO), the control unit 14 determines whether there is an access point of the second charging device 204 (step S59). If it is determined that there is no access point of the second charging device 204 (step S59: NO), the control unit 14 ends the process. When it is determined that there is an access point of the second charging device 204 (step S59: YES), the control unit 14 causes the wireless communication unit 11 to start wireless communication with the second charging device 204 (step S60). . Then, it is determined whether or not the charging gun is connected (step S61). If it is determined that the charging gun is not connected (step S61: NO), the control unit 14 ends the process. If it is determined that the charging gun is connected (step S61: YES), the control unit 14 controls the charging of the battery 5 by the second charging device 204 in the same processing procedure as steps S14 to 16 (step S62 to Step S64), finish the process.
　実施形態２によれば、実施形態１と同様、充電効率の高い第２充電装置２０４による充電が可能である場合、充電通信制御装置２０１は、第２充電装置２０４との無線通信に切り替え、当該第２充電装置２０４にてバッテリ５を充電することができる。 According to the second embodiment, as in the first embodiment, when charging by the second charging device 204 with high charging efficiency is possible, the charging communication control device 201 switches to wireless communication with the second charging device 204, The second charging device 204 can charge the battery 5.
　なお、本実施形態２では第２充電装置４が充電ケーブル４１を用いて充電を行う構成を説明したが、無線通信を行い有線で充電を行う充電装置であれば、その構成は特に限定されるものでは無い。例えば、第２充電装置４は自動接続充電デバイス（ACD:Automatic Connection Device）であっても良い。自動接続充電デバイスは、車両Ｃが所定の停車位置で停車したときに当該車両Ｃの天井部の上方に先端部が位置するように設置されたポールと、ポールの先端部から下方へ伸縮可能に折り畳まれたパンタグラフとを備える。車両Ｃの天井部には先端部から伸びたパンタグラフと電気的に接触する受電部が設けられている。自動接続充電デバイスは、パンタグラフから車両Ｃの受電部を通じて電力を供給し、バッテリ５を充電する装置である。自動接続充電デバイスは、第１充電装置３と同様、充電通信制御装置１との間で無線通信を行い、充電制御に必要な各種情報を送受信する。
　自動接続充電デバイスは、第１充電装置３と同様、識別子及びネットワーク名等を含むビーコン信号を定期的に無線送信しており、充電通信制御装置１は当該ビーコン信号を受信することにより、自動接続充電デバイスに係るアクセスポイントを検出し、無線通信を確立することができる。無線通信の結果、車両Ｃが自動接続充電デバイスに対応している場合、充電通信制御装置１及び充電ＥＣＵ２は当該自動接続充電デバイスによる充電を選択し、バッテリ５の充電制御を行う。
　上記構成によれば、第１充電装置３と無線通信を行っているところ、充電効率の高い自動接続充電デバイスによる充電が可能である場合、充電通信制御装置２０１は、自動接続充電デバイスとの無線通信に切り替え、当該自動接続充電デバイスにてバッテリ５を充電することができる。 In the second embodiment, although the configuration in which the second charging device 4 performs charging using the charging cable 41 has been described, the configuration is particularly limited as long as it is a charging device that performs wireless communication and performs wired charging. It is not a thing. For example, the second charging device 4 may be an automatic connection charging device (ACD). The automatically connected charging device is extendable from the pole installed so that the tip is located above the ceiling of the vehicle C when the vehicle C stops at a predetermined stopping position, and can extend downward from the tip of the pole And a folded pantograph. A power reception unit in electrical contact with the pantograph extended from the tip end portion is provided on the ceiling portion of the vehicle C. The automatic connection charging device is a device that supplies power from the pantograph through the power receiving unit of the vehicle C and charges the battery 5. The automatic connection charging device performs wireless communication with the charging communication control device 1 as in the first charging device 3 and transmits and receives various information necessary for charging control.
The automatic connection charging device periodically wirelessly transmits a beacon signal including an identifier, a network name, etc., as in the first charging device 3, and the charging communication control device 1 automatically connects by receiving the beacon signal. An access point associated with the charging device can be detected and wireless communication can be established. As a result of the wireless communication, when the vehicle C corresponds to the automatic connection charging device, the charging communication control device 1 and the charging ECU 2 select the charging by the automatic connection charging device and perform the charging control of the battery 5.
According to the above configuration, when wireless communication with the first charging device 3 is performed, if charging by the automatic connection charging device with high charging efficiency is possible, the charging communication control device 201 wirelessly communicates with the automatic connection charging device. By switching to communication, the battery 5 can be charged by the automatic connection charging device.
　１，２０１　充電通信制御装置
　２　充電ＥＣＵ
　３　第１充電装置
　４，２０４　第２充電装置
　５　バッテリ
　６　受電パッド
　７　インレット
　１０　ＣＡＮ通信線
　１１　無線通信部
　１２　ＰＬＣ通信部
　１２ａ　カップリングコンデンサ
　１２ｂ　カップリングトランス
　１２ｃ　通信回路
　１３　ＣＡＮ通信部
　１４　制御部
　１５　接続検出部
　３１　送電パッド
　４０　充電ケーブル
　８１　車内給電線
　８２　車内制御線
　８３　車内基準電位線
　Ｃ　車両
  1,201 Charge communication control device 2 charge ECU
Reference Signs List 3 first charging device 4, 204 second charging device 5 battery 6 receiving pad 7 inlet 10 CAN communication line 11 wireless communication unit 12 PLC communication unit 12 a coupling capacitor 12 b coupling transformer 12 c communication circuit 13 CAN communication unit 14 control unit 15 Connection detection unit 31 Transmission pad 40 Charging cable 81 In-vehicle feed line 82 In-vehicle control line 83 In-vehicle reference potential line C Vehicle

Claims (6)

  1. 　車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とを備え、前記第１通信部及び前記第２通信部による通信を制御する充電通信制御装置であって、
    　前記第２通信部が前記第１通信部に優先して通信を行うように、前記第１通信部及び前記第２通信部のいずれか一つを選択して充電制御に係る情報の通信を制御する制御部を備える
    　充電通信制御装置。     A first communication unit that communicates information related to charging control with a first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving the vehicle, and a feeder line And a second communication unit that communicates information related to charging control with a second charging device that charges the battery by transmitting electric power, and the communication by the first communication unit and the second communication unit is performed. A charge communication control device that controls
    Control of communication of information related to charge control by selecting any one of the first communication unit and the second communication unit so that the second communication unit performs communication prior to the first communication unit A charge communication control device comprising a control unit.
  2. 　前記給電線による前記第２充電装置及び前記車両の接続を検出する接続検出部を備え、
    　前記制御部は、
    　前記第１通信部が前記第１充電装置と通信を行っている場合、前記接続検出部にて接続が検出されたとき、前記第１通信部による通信を停止させ、前記第２通信部による通信を開始させる
    　請求項１に記載の充電通信制御装置。     It has a connection detection unit that detects connection of the second charging device and the vehicle by the feeder.
    The control unit
    When the first communication unit is in communication with the first charging device, when the connection detection unit detects a connection, the communication by the first communication unit is stopped, and the communication by the second communication unit is performed. The charge communication control device according to claim 1.
  3. 　前記第１通信部は前記第１充電装置との間で無線通信を行い、前記第２通信部は前記第２充電装置との間で有線通信を行うようにしてある
    　請求項１又は請求項２に記載の充電通信制御装置。     The first communication unit performs wireless communication with the first charging device, and the second communication unit performs wired communication with the second charging device. The charge communication control device according to claim 1.
  4. 　前記制御部は、
    　前記第１通信部が前記第１充電装置と無線通信を行っており、前記第２通信部による有線通信に切り替える場合、前記第１通信部による無線通信を一時停止させて前記第２通信部による有線通信を開始させ、前記第２通信部による有線通信が確立され、前記第２充電装置による前記バッテリの充電が可能であるとき、前記第１通信部による前記第１充電装置との間の無線通信を切断させる
    　請求項３に記載の充電通信制御装置。     The control unit
    When the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit, the wireless communication by the first communication unit is temporarily stopped and the second communication unit is transmitted. When wired communication is started, wired communication by the second communication unit is established, and charging of the battery by the second charging device is possible, wireless communication with the first charging device by the first communication unit The charge communication control device according to claim 3, wherein the communication is disconnected.
  5. 　前記制御部は、
    　前記第１通信部が前記第１充電装置と無線通信を行っており、前記第２通信部による有線通信に切り替える場合、前記第１通信部による無線通信を一時停止させて前記第２通信部による有線通信を開始させ、前記第２通信部による有線通信が確立されず、又は前記第２充電装置による前記バッテリの充電が不能であるとき、前記第１通信部による無線通信を再開させる
    　請求項３又は請求項４に記載の充電通信制御装置。     The control unit
    When the first communication unit performs wireless communication with the first charging device and switches to wired communication by the second communication unit, the wireless communication by the first communication unit is temporarily stopped and the second communication unit is transmitted. When the wired communication is started and the wired communication by the second communication unit is not established or the charging of the battery by the second charging device is not possible, the wireless communication by the first communication unit is resumed. Or the charge communication control apparatus of Claim 4.
  6. 　車両駆動用のバッテリを搭載した車両へ非接触で電力を伝送することにより前記バッテリを充電する第１充電装置との間で、充電制御に係る情報を通信する第１通信部と、給電線を通じて電力を伝送することにより前記バッテリを充電する第２充電装置との間で、充電制御に係る情報を通信する第２通信部とによる通信を制御する充電通信制御方法であって、
    　前記給電線による前記第２充電装置及び前記車両の接続を検出し、
    　前記第１通信部が前記第１充電装置と通信を行っている場合、前記第２充電装置及び前記車両の接続が検出されたとき、前記第１通信部による通信を停止させ、
    　前記第２通信部による通信を開始させる
    　充電通信制御方法。
          A first communication unit that communicates information related to charging control with a first charging device that charges the battery by transmitting power without contact to a vehicle equipped with a battery for driving the vehicle, and a feeder line A charging communication control method for controlling communication with a second communication unit that communicates information related to charging control with a second charging device that charges the battery by transmitting electric power.
    Detecting connection of the second charging device and the vehicle by the feed line;
    When the first communication unit communicates with the first charging device, the communication by the first communication unit is stopped when the connection between the second charging device and the vehicle is detected.
    A charge communication control method for starting communication by the second communication unit.
PCT/JP2018/038298 2017-10-31 2018-10-15 Charging communication control device and charging communication control method WO2019087754A1 (en)

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