WO2013115428A1 - Electric vehicle charging system and electric vehicle charging method - Google Patents

Electric vehicle charging system and electric vehicle charging method Download PDF

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Publication number
WO2013115428A1
WO2013115428A1 PCT/KR2012/001314 KR2012001314W WO2013115428A1 WO 2013115428 A1 WO2013115428 A1 WO 2013115428A1 KR 2012001314 W KR2012001314 W KR 2012001314W WO 2013115428 A1 WO2013115428 A1 WO 2013115428A1
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Prior art keywords
charger
power
information
electric vehicle
communication
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PCT/KR2012/001314
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French (fr)
Korean (ko)
Inventor
이태훈
박래혁
류성한
조용찬
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엘에스전선(주)
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Publication of WO2013115428A1 publication Critical patent/WO2013115428A1/en

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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • H—ELECTRICITY
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    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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    • B60L50/00—Electric propulsion with power supplied within the vehicle
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    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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    • Y04S30/12—Remote or cooperative charging
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Definitions

  • the present invention relates to an electric vehicle charging system and an electric vehicle charging method. More particularly, the present invention relates to an electric vehicle charging system and an electric vehicle charging method for providing a communication environment between a charger and a charger management server through near field communication.
  • An electric vehicle is a vehicle that uses an electric battery and an electric motor, that is, runs on electricity without using petroleum fuel and an engine. Such electric vehicles are driven by rotating a motor with electricity charged in a battery, thereby requiring an apparatus for charging a battery.
  • gas stations can be built without special equipment, provided that there is a certain space for building an oil depot.
  • the charging system of the electric vehicle uses electric energy, which requires various facilities.
  • the electric vehicle charging system requires its own power grid, distribution network, substation, etc. in order to provide a stable supply of sufficient power, but requires a lot of space and is not economical in terms of cost.
  • the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a communication environment between a charger and a charger management server for efficient management and operation of an electric vehicle charging system.
  • an object of the present invention is to provide a method for providing information, a payment method, and a system for the convenience of a user using an electric vehicle charging system.
  • An electric vehicle charging system communicates with one or more chargers for supplying electricity to an electric vehicle, a charger management server for controlling the operation of the charger and managing information of the charger, the charger management server and the first communication protocol. And a communication server configured to communicate with at least one charger and a second communication protocol using short range wireless communication converted from the first communication protocol to provide a communication environment between the charger management server and the charger.
  • the communication server may be included in one of the one or more master chargers, and the chargers other than the master charger may communicate with the master charger through the second communication protocol.
  • the communication server may communicate with the power information server supplying the power information through the first communication protocol, and the power information may include price of power, power demand information, or power failure information.
  • the near field communication may be Wi-Fi, ZigBee, near Field Communication (NFC), or Bluetooth.
  • the communication server may generate an encryption key, share the encryption key with the charger to authenticate the charger, and communicate with the authenticated charger in a second communication protocol.
  • the charger converts input AC power into DC power, an inverter for converting converted DC power into AC power, a transformer for converting inverted AC power, and a rectified AC power to generate DC electricity. It may include a rectifier.
  • the charger collects and transmits the payment information of the electric vehicle to the charger management server and charges the electric vehicle under the control of the charger management server, and the charger management server adjusts the payment amount based on the supply unit price based on the transferred payment information. Determine the payment amount and the payment information based on the payment amount and the payment information, and transmit the result to the payment server that delivers the result to the charger management server. Can be.
  • the electric vehicle charging system further includes a power grid for producing or / or supplying power and supplying the generated power to the charger, including at least one power carrier with its own power transmission, substation, and distribution facilities, and the grid manages the charger.
  • the charger management server can support an intelligent smart grid.
  • the power grid may supply power information such as power price, power demand status, and power system information to the charger management server, and the charger management server may transmit power information to the charger and transmit information of the charger to the power grid.
  • the charger information may include machine type information for classifying charger types, charging station ID information on which the charger is installed, or physical equipment number information of the charger.
  • Machine types may include complete equipment, quick chargers, slow chargers, contactless chargers, slow chargers for motorcycles or quick chargers for motorcycles.
  • the communication server controls the operation of one or more chargers for supplying electricity to the electric vehicle, and the charger control signal from the charger management server for managing the information of the charger to the first communication protocol
  • Receiving generating a cryptographic key for communicating with one or more chargers with a second communication protocol using near field communication, authenticating the charger by sharing the cryptographic key with the one or more chargers, between the charger management server and the charger
  • the method includes initiating communication with the authenticated charger through a second communication protocol, and converting a control signal received from the charger management server into a second communication protocol and transmitting the same to the charger.
  • the electric vehicle charging system and the electric vehicle charging method according to an embodiment of the present invention have an effect of increasing the efficiency of management and its operation by providing a communication protocol required for the electric vehicle charging system.
  • FIG. 1 is an exemplary view showing a charging form between an electric vehicle battery charging device and an electric vehicle according to an embodiment of the present invention.
  • FIG. 2 is a block diagram illustrating an electric vehicle charging system according to an exemplary embodiment of the present invention.
  • FIG. 3 is a block diagram illustrating an electric vehicle charging system including a master charger according to an exemplary embodiment of the present invention.
  • FIG. 4 is a diagram illustrating an example of a detailed configuration of a power supply unit according to the present invention.
  • FIG. 5 is a flowchart of a method for charging an electric vehicle according to an exemplary embodiment of the present invention.
  • the electric vehicle 20 includes a battery 22, which is connected to the electric vehicle battery charger 10.
  • the electric vehicle battery charger 10 may receive power from an energy source.
  • the power source generally includes a grid, such as a power corporation that produces and supplies electricity, and means for producing or / and supplying electricity in addition to the grid, and may supply electricity to the electric vehicle battery charger 10. Includes all power sources present.
  • the power transmission / distribution engine 1 and the regenerative power producer 2 serve as power sources for providing power.
  • the power transmission / distribution engine 1 includes power generators 3 (Bulk Generators) in charge of primary power supply.
  • the regenerative power producer 2 also comprises a power recycling means 4 comprising a storage device for secondary power production and a distributed power supply.
  • the electric vehicle battery charger 10 is linked with a smart-grid (smart grid), which means a next generation power system and its management system, which are realized through the convergence and complex of modernized power technology and information communication technology. It is also possible.
  • a smart-grid smart grid
  • the central management server system 5 manages the primary and / or secondary power providers and the electric vehicle battery chargers 10 to be linked with each other.
  • the central management server system 5 receives the power supply request from the charger 10, and in response to the received power supply request to be supplied power to the charger 10 in the primary or / and secondary power providers.
  • the central management server system 5 may support and provide all necessary infrastructure such as a communication protocol for power supply / reception between the primary and / or secondary power providers and the charger 10.
  • the electric vehicle battery charger 10 may further include a smart meter 6 for controlling power supply / supply and a local server in communication with the central management server system 5.
  • the smart meter 6 can more precisely control the power supply / supply based on the supply / demand of the power, charging related information, etc. in the above-described smart-grid environment.
  • the local server 7 provides an infrastructure for collecting, transferring and necessary various control operations based on the information necessary for each between the power supply and the electric vehicle 20. For example, when the electric vehicle battery charger 10 is connected to the electric vehicle 20, the local server 7 receives additional information from the electric vehicle 20. The local server 7 requests the power supply source to supply the necessary power based on the received additional information. The additional information includes information for billing, and the local server 7 calculates and displays the fee for the amount of power supply based on the smart meter 6 information for the billing received from the electric vehicle 20. Etc. may be directly processed, and if necessary, the information may be processed after transmission to an external server (not shown). In addition, the local server 7 may transmit the above information to the central management server system 5 to receive and display the charging information.
  • the electric power information network 8 may provide various electric power information to the central management server system, the electric power company and the electric vehicle battery charger.
  • An electric vehicle battery charger 10 includes a coupler as a connector that is directly connected to an innet provided in the electric vehicle 20 to supply power, and is connected to the innet and the coupler.
  • the information of the 20 is transmitted to the local server 7, and the electric power supplied to the electric vehicle 20 through the coupler is supplied to the electric vehicle 20 through the coupler based on the transmitted information. 22).
  • the electric vehicle charging system controls the operation of one or more charger 10, the charger 10 for supplying electricity to the electric vehicle 20, and a charger management server for managing the information of the charger 10 ( 5), the charger management server 5 communicates with the charger management server 5 through the first communication protocol, and communicates with the one or more chargers 10 with the second communication protocol using the short range wireless communication converted from the first communication protocol. ) And a communication server 100 providing a communication environment between the charger 10.
  • the charger 10 is activated.
  • the activation refers to, for example, the owner of the electric vehicle 20, that is, when the user inputs information for charging through a user interface (UI) provided by the charger 10, the charger 10. ) To recognize it and to prepare for charging. In other words, it means a state in which the charger 10 can perform a process necessary for charging the electric vehicle 20.
  • UI user interface
  • the charger 10 provides necessary information to the user of the electric vehicle 20 and provides a user interface (UI) or the like for inputting charging related information of the user.
  • UI user interface
  • the charger 10 communicates with the battery management system (BMS) of the electric vehicle according to a predetermined protocol to collect battery related information.
  • BMS battery management system
  • the collection of this information may be made, for example, via a connector of the charger 10 and a specific terminal included in the internet of the electric vehicle.
  • the connector of the charger 10 and the internet of the electric vehicle 20 may be provided with a plurality of terminals as determined by the relevant standards.
  • the connector of the charger 10 may basically include an electric supply terminal for supplying electricity to the electric vehicle 20, and may further include an additional terminal for receiving and supplying a signal necessary for a charging process.
  • additional terminals include, for example, a ground terminal, a charge start / stop terminal, a connection check terminal, and a CAN area controller.
  • CAN communication is a kind of communication protocol for transmitting and receiving data through parallel connection between devices.
  • the battery-related information includes all information that can be provided by the electric vehicle 20 in connection with battery charging, for example, the current remaining amount of the battery, the required charge amount, the rated voltage and current of the battery, and the like.
  • the charger 10 and the battery management system BMS of the electric vehicle may communicate using, for example, a CAN communication protocol.
  • the charger 10 may communicate with the communication server 100 through a second communication protocol using short-range wireless communication.
  • the second communication protocol may be any one of Wi-Fi, ZigBee, near Field Communication (NFC), or Bluetooth.
  • the charger 10 exchanges information with the communication server 100 using Wi-Fi and receives a control signal of the charger 10.
  • the communication server 100 may include a short range wireless communication unit 110 that communicates with the charger 10 through a second protocol, a communication unit 130 that communicates with the charger management server 5 through a first communication protocol, and a short range wireless communication unit 110. And a signal processor 120 for converting a signal from the communication unit 130, and a controller 140 for controlling overall operation of the communication server 100.
  • the communication unit 130 may receive the charger 10 control signal or payment information from the charger management server 5 through the first communication protocol.
  • the communication unit 130 may communicate with the power information server for supplying power information through the first communication protocol.
  • the communication unit 130 may use a charger management server using at least one communication protocol of a public switched telephone network (PSTN), an internet protocol suite, and a wireless local area network. (5) or communicate with the power information server.
  • the power information from the power information server may include price of power, power demand information, or power failure information.
  • the signal processor 120 may convert the received control signal, payment information or power information and output the converted control signal to the short range wireless communication unit 110.
  • the signal processor 120 converts a signal for maintenance and control of the charger 10 into a second communication protocol and outputs the signal to the charger 10 through the short range wireless communication unit 110, thereby managing the charger management server 5. By generating a signal for controlling the charger 10 can thereby control the charger 10.
  • the charger management server 5 transmits the electric power of the charged fee to the electric vehicle 20.
  • the charger 10 generates a control signal to charge. Then, it is transmitted to the communication unit 130, and the transmitted control signal is converted into a second communication protocol for transmission from the signal processing unit 120 to the charger 10.
  • payment information and power information is also output to the near field communication unit 110 through the same process as the control signal.
  • the control unit 140 performs overall management and control of the communication server 100, and controls the signal processing unit 120 so that the signal processing unit 120 converts a control signal, payment information, or power information output from the communication unit 130. do.
  • the controller 140 may generate an encryption key for authenticating the charger 10.
  • the encryption key is output to the signal processor 120 and converted into a second communication protocol.
  • the communication server 100 and the charger 10 may start communication by a second communication protocol.
  • the short range wireless communication unit 110 transmits the control signal, payment information, or power information output from the signal processing unit 120 to the charger 10 through a second communication protocol using short range wireless communication.
  • the short range wireless communication may be any one of Wi-Fi, Zigbee, near field communication (NFC), or Bluetooth.
  • the short range wireless communication unit 110 may transmit the encryption key generated by the controller 140 to the charger 10. For example, since the charger 10 collects payment information of the user who wants to charge the electric vehicle 20 and information of the electric vehicle 20 and transmits the collected information to the communication server 100, there is a security problem. Therefore, before exchanging information between the charger 10 and the communication server 100, it is possible to solve the problem of security through authentication between the charger 10 and the communication server 100.
  • the charger management server 5 controls the operation of the charger 10, and manages the information of the charger 10.
  • the charger management server 5 may charge the charger 10 so that the charger 10 charges the electric vehicle 20 according to the amount that the user pays to charge the electric vehicle 20 and the power to charge the electric vehicle 20.
  • the charger management server 5 may generate a control signal for starting the charging of the electric vehicle 20 and transmit it to the communication server 100 in the first communication protocol. That is, the charger 10 may collect payment information of the electric vehicle 20, transmit the collected information to the charger management server 5, and charge the electric vehicle 20 under the control of the charger management server 5.
  • the charger management server 5 may communicate with the payment server 9, determine a payment amount based on the supply unit price based on the payment information transmitted from the communication server 100, and transmit it to the payment server 9. have. Then, the payment server 9 may perform payment based on the payment amount and payment information determined from the charger management server 5 and transmit the result to the charger management server 5. In this case, the communication server 100 may receive the payment details of the transaction completed by the payment server 9 and transmit the received transaction details to the charger 10.
  • the grid 8 includes at least one power carrier that produces or / and supplies power and has its own power transmission, substation and distribution facilities, and supplies the generated power to the charger 10.
  • the power grid 8 may support the intelligent power grid to the charger management server 5 to transmit power information.
  • the master charger 12 of the electric vehicle charging system may include a master charger 12.
  • an electric vehicle charging system including the master charger 12 will be described with reference to FIG. 3.
  • FIG. 3 is a block diagram illustrating an electric vehicle charging system including a master charger 12 according to an exemplary embodiment of the present invention. As shown, the electric vehicle charging system includes a charger 10, a master charger 12, and a charger management server 5.
  • the master charger 12 includes a short range wireless communication unit 112, a signal processing unit 122, a communication unit 132, a control unit 142, an interface unit 150, a power supply unit 160, and a display unit 170.
  • the communication unit 132 may receive the charger 10 control signal or payment information from the charger management server 5 through the first communication protocol.
  • the communication unit 132 may communicate with the power information server for supplying power information through the first communication protocol.
  • the communication unit 132 may use a charger management server using at least one communication protocol of a public switched telephone network (PSTN), an internet protocol suite, and a wireless local area network. (5) or communicate with the power information server.
  • PSTN public switched telephone network
  • the power information from the power information server may include price of power, power demand information, or power failure information.
  • the signal processor 122 may convert the received control signal, payment information or power information and output the converted control signal to the short range wireless communication unit 112. Since the signal processor 122 converts a signal for maintenance and control of the charger 10 into a second communication protocol and outputs the signal to the charger 10 through the short range wireless communication unit 112, the charger management server 5. By generating a signal for controlling the charger 10 can thereby control the charger 10.
  • the charger management server 5 transmits the electric power of the charged fee to the electric vehicle 20.
  • the charger 10 generates a control signal to charge. Then, it is transmitted to the communication unit 132, and the transmitted control signal is converted into a second communication protocol for transmission from the signal processing unit 122 to the charger 10.
  • payment information and power information is also output to the near field communication unit 112 through the same process as the control signal.
  • the controller 142 performs overall management and control of the master charger 12, and controls the signal processor 122 so that the signal processor 122 converts a control signal, payment information, or power information output from the communication unit 132. do.
  • the controller 142 may generate an encryption key for authenticating the charger 10.
  • the encryption key is output to the signal processor 122 and converted into a second communication protocol.
  • the master charger 12 and the charger 10 share an encryption key, so that communication with the second communication protocol can be initiated.
  • the short range wireless communication unit 112 transmits the control signal, payment information, or power information output from the signal processing unit 122 to the charger 10 through a second communication protocol using short range wireless communication.
  • the short range wireless communication may be any one of Wi-Fi, Zigbee, near field communication (NFC), or Bluetooth.
  • the short range wireless communication unit 112 may transmit the encryption key generated by the controller 142 to the charger 10. For example, since the charger 10 collects payment information of the user who wants to charge the electric vehicle 20 and information of the electric vehicle 20 and transmits the collected information to the master charger 12, there is a security problem. Therefore, before exchanging information between the charger 10 and the master charger 12, it is possible to solve the problem of security through authentication between the charger 10 and the master charger 12.
  • the interface unit 150 may receive a user input for charging the electric vehicle 20.
  • the user may select any one of a charging amount, a charging power amount, or a charging time to charge the electric vehicle 20.
  • the display unit 170 divides and displays the amount of power to be charged on the electric vehicle 20
  • the controller 142 is the power supply unit 160.
  • Current is applied to the battery.
  • the interface unit 150 may be a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, and a jog switch.
  • the display unit 170 may display a distance at which the electric vehicle 20 may be driven by the price of the electric power to be charged, the time required to charge the electric power, and the charged electric power.
  • the controller 142 may calculate the values and output the calculated values to the display unit 170, and the display unit 170 may display them.
  • the master charger 12 or the charger 10 may include a power supply unit, which will be described below with reference to FIG. 4.
  • the power supply includes a converter, an inverter, a transformer, a rectifier, and a ground fault detector 324, 334.
  • the power supply unit receives the AC power of the electric power grid 8 and converts it into DC electricity and supplies it to the electric vehicle 20.
  • the first ground fault detector 324 checks whether a ground fault occurs while AC power is supplied to the power supply unit through the power grid 8. Here, when a short circuit is detected as a result of the test, the first ground fault detector 324 controls and processes the AC power not to be supplied from the electric power grid 8 to the power supply unit by using a relay or the like.
  • the converter 326 converts AC power supplied from the electric power grid 8 into DC power.
  • the inverter 328 inverts the DC power converted in the converter 326 back to the AC power.
  • the transformer 330 electrically insulates the electric power grid 8 and the electric vehicle 20, and converts the inverted AC power input to a voltage necessary to charge the electric vehicle.
  • the rectifier 332 rectifies the transformed AC power to generate desired DC electricity.
  • the converter 326, the inverter 328, and the transformer 330 described above are used to adjust the difference in power supply / supply scheme between the power grid 8 and the power supply, and some components may be omitted or added as necessary. It may be.
  • the second ground fault detector 334 inspects whether a ground fault occurs while DC electricity rectified by the rectifier 332 is supplied to the electric vehicle 20.
  • the DC electricity of the power supply unit is no longer transferred to the electric vehicle 20 using a configuration such as a relay as in the first ground fault detector 324 described above. Shut off the supply.
  • the first ground fault detector 324 and the second ground fault detector 334 illustrate the use of a relay to cut off power between the power grid 8, the power supply unit, and the power supply unit and the electric vehicle 20, respectively.
  • Each ground fault detector is connected between each resistor connected to ground, each resistor and a link stage for supplying power to the load, and a decompression unit for reducing the input high voltage, an adder for obtaining a gain between the link stage and the ground, and the addition.
  • the controller 140 may be configured to determine whether a short circuit occurs from a negative gain.
  • the charger 10 does not use the first communication protocol for each of the charger 10 to communicate with each other, and the communication server 100 and the charger management server 5 do not use each other. Since the first communication protocol is used, an additional line lease cost is not additionally generated even when a plurality of chargers 10 are used.
  • the charger 10 since the electric vehicle charging system uses short-range wireless communication, a communication line is not required and the charger 10 additionally includes a communication modem for communicating in short-range wireless communication, thereby reducing the cost.
  • FIG 5 is a flowchart of a method for charging an electric vehicle according to an exemplary embodiment of the present invention.
  • the control unit 140 of the communication server 100 generates an encryption key (S100).
  • the generated encryption key is output to the short range wireless communication unit 110, and the short range wireless communication unit 110 shares the generated encryption key with the charger 10 to initiate communication with the charger 10 (S102).
  • the communication server 100 authenticates the charger 10 in which the sharing of the encryption key is completed (S104) and starts communication with the charger 10.
  • the communication server 100 and the charger 10 start communication, and the charger 10 transmits the information of the charger 10 or the information of the electric vehicle 20 to the communication server 100 (S106).
  • the communication server 100 For example, when the user connects the charger 10 and the electric vehicle 20 to charge the electric vehicle 20, information of the electric vehicle 20 is transmitted to the charger 10 by CAN communication.
  • the charger 10 receives the received electric vehicle 20 information, machine type information for classifying the type of the charger 10, charging station ID information on which the charger 10 is installed, physical equipment number information of the charger 10, and charging.
  • the card information or payment information of the user for payment of the amount may be transmitted to the communication server 100.
  • the communication server 100 transmits the received charger 10 information and payment information to the charger management server 5 (S108).
  • the charger management server 5 determines the payment amount through the received payment information (S110). In one example, the charger management server 5 determines the payment amount by multiplying the amount of charging power selected by the user and the current amount per unit power.
  • the charger management server 5 transmits the payment amount to the payment server 9 for payment (S112).
  • the payment server 9 performs payment according to the payment amount (S114), and transmits the transaction details to the charger management server 5 (S116).
  • the charger management server 5 generates a signal for controlling the charger 10 (S118). That is, when the payment is completed, generates a control signal for charging the electric vehicle 20, and transmits the control signal to the communication server 100 in the first communication protocol (S120). For example, the charger management server 5 generates a signal for controlling the charger 10 connected to the electric vehicle 20 to charge the electric vehicle 20 with a predetermined amount of power through the charger 10 information.
  • the control signal selects the charger 10 for charging the electric vehicle 20 in a place where one or more chargers 10 are concentrated, and the amount of current and the amount of current that the selected charger 10 applies to the electric vehicle 20.
  • the charger 10 may be controlled to determine and charge the time at which the electric vehicle 20 charges the electric vehicle 20.
  • the charger management server 5 identifies the charger 10 that has been paid by the physical equipment number, and generates a signal for controlling the charger 10 corresponding to the equipment number to charge the electric vehicle 20.
  • the signal processor 120 converts the control signal to the second communication protocol for transmitting to the charger 10 (S122). Since the communication server 100 and the charger 10 may communicate by the second protocol, the communication server 100 and the charger 10 convert the control signal received by the first protocol. Thereafter, the short range wireless communication unit 110 transmits the control signal converted into the second protocol to the charger 10 (S124). Then, the charger 10 charges the electric vehicle 20 according to the transmitted control signal (S126).
  • the electric vehicle charging system and the electric vehicle charging method can easily charge the electric vehicle that can be used in the high oil price era, and can provide industrial communication by providing the communication protocol required for charging to increase the efficiency of management and its operation. .

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

An electric vehicle charging system according to one embodiment of the present invention comprises: one or more chargers for supplying electricity to an electric vehicle; a charger management server for controlling operations of the charger and managing the information of the charger; and a communication server for communicating with the charger management server through a first communication protocol and communicating with one or more chargers through a second communication protocol using local wireless communication for converting the first communication protocol, so as to provide a communication environment between the charger management server and the chargers.

Description

전기 자동차 충전 시스템 및 전기 자동차 충전방법Electric vehicle charging system and electric vehicle charging method
본 발명은 전기 자동차 충전 시스템 및 전기 자동차 충전방법에 관한 것으로, 더욱 상세하게는 근거리 무선통신으로 충전기와 충전기 관리 서버의 통신환경을 제공하는 전기 자동차 충전 시스템 및 전기 자동차 충전방법에 관한 것이다.The present invention relates to an electric vehicle charging system and an electric vehicle charging method. More particularly, the present invention relates to an electric vehicle charging system and an electric vehicle charging method for providing a communication environment between a charger and a charger management server through near field communication.
전기 자동차는 가솔린이나 디젤 자동차보다 먼저 제작되었으나, 배터리의 무거운 중량, 충전에 걸리는 시간 등의 문제로 실용화되지 못하다가, 최근 화석 에너지의 고갈과 환경오염으로 인해 화석 에너지를 사용하지 않고 전기 에너지를 이용하는 전기 자동차에 대한 관심이 높아지면서 이에 대한 연구가 활발하게 진행되고 있다.Although electric cars were manufactured before gasoline or diesel cars, they were not put to practical use due to the heavy weight of batteries and the time required for charging.However, due to the recent exhaustion of fossil energy and environmental pollution, electric vehicles do not use fossil energy. As interest in electric vehicles has increased, studies on this have been actively conducted.
전기 자동차(EV; electric vehicle)는 석유 연료와 엔진을 사용하지 않고, 전기 배터리와 전기 모터를 사용하는 즉, 전기를 동력으로 하여 운행하는 자동차이다. 이러한 전기 자동차는 배터리에 충전된 전기로 모터를 회전시켜서 자동차를 구동시키므로 배터리의 충전을 위한 장치가 요구된다.An electric vehicle (EV) is a vehicle that uses an electric battery and an electric motor, that is, runs on electricity without using petroleum fuel and an engine. Such electric vehicles are driven by rotating a motor with electricity charged in a battery, thereby requiring an apparatus for charging a battery.
다만, 최근 기술 발전에 따라 배터리의 용량이 커졌다고는 하나, 여전히 화석에너지를 사용하는 일반적인 자동차들이 주유소에서 주유하듯이 전기 자동차의 배터리도 충전이 필수적이다.However, although the capacity of the battery has increased due to recent technological developments, it is essential to charge the battery of an electric vehicle as fuels are still supplied by gas stations.
종래 주유소는 유류 창고를 지을만한 일정한 공간만 있으면, 특별한 설비가 없어도 구축이 가능하였다. 하지만, 전기 자동차의 충전시스템은, 전기 에너지를 이용하는바, 이를 위해 다양한 설비가 필요하다. 특히, 전기 자동차 충전 시스템은, 충분한 전력의 안정적인 공급을 위해 자체 송전망, 배전망, 변전소 등의 시설이 요구되나 이를 독자적으로 구비하는 것은 많은 공간이 요구되고, 비용의 면에서도 경제적이지 못하다.Conventionally, gas stations can be built without special equipment, provided that there is a certain space for building an oil depot. However, the charging system of the electric vehicle uses electric energy, which requires various facilities. In particular, the electric vehicle charging system requires its own power grid, distribution network, substation, etc. in order to provide a stable supply of sufficient power, but requires a lot of space and is not economical in terms of cost.
또한, 해마다 전력 수요가 증가하고 있는 실정을 고려한다면, 안정적인 전력 수급 및 공급을 위한 전력망의 확보가 쉽지 않으며 특히나, 실시간으로 전력 수요에 대응하고 보다 값싼 전력을 공급하기에는 많은 어려움이 있다.In addition, considering the fact that power demand is increasing year by year, it is not easy to secure a power grid for stable power supply and supply, and in particular, there are many difficulties in responding to power demand in real time and supplying cheaper power.
이러한 이유로 전기 자동차 충전 시스템은 제대로 구축되어 있지 않아, 향후 전기 자동차가 보급되더라도 전기 자동차 운용에 어려움이 예상된다.For this reason, the electric vehicle charging system is not properly established, so even if the electric vehicle is distributed in the future, it is expected to be difficult to operate the electric vehicle.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로, 전기 자동차 충전시스템의 효율적인 관리 및 운용을 위한 충전기와 충전기 관리 서버간 통신 환경을 제공하는데 그 목적이 있다.The present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide a communication environment between a charger and a charger management server for efficient management and operation of an electric vehicle charging system.
그리고, 본 발명은 전기 자동차 충전 시스템을 이용하는 사용자의 편의를 위한 정보의 제공, 결제 방법 및 그를 위한 시스템을 제공하는데 그 목적이 있다.In addition, an object of the present invention is to provide a method for providing information, a payment method, and a system for the convenience of a user using an electric vehicle charging system.
본 발명의 실시 예에 따른 전기 자동차 충전 시스템은 전기 자동차에 전기를 공급하는 하나 이상의 충전기, 충전기의 운영을 제어하고, 충전기의 정보를 관리하는 충전기 관리 서버, 충전기 관리 서버와 제1 통신 프로토콜로 통신하고, 하나 이상의 충전기와 제1 통신 프로토콜을 변환한 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 통신하여, 충전기 관리 서버와 충전기 사이의 통신 환경을 제공하는 통신 서버를 포함한다.An electric vehicle charging system according to an embodiment of the present invention communicates with one or more chargers for supplying electricity to an electric vehicle, a charger management server for controlling the operation of the charger and managing information of the charger, the charger management server and the first communication protocol. And a communication server configured to communicate with at least one charger and a second communication protocol using short range wireless communication converted from the first communication protocol to provide a communication environment between the charger management server and the charger.
통신 서버는 하나 이상의 충전기 중 어느 하나의 마스터 충전기에 포함되고, 마스터 충전기를 제외한 충전기는 마스터 충전기와 제2 통신 프로토콜로 통신할 수 있다.The communication server may be included in one of the one or more master chargers, and the chargers other than the master charger may communicate with the master charger through the second communication protocol.
그리고, 통신 서버는 전력 정보를 공급하는 전력 정보 서버와 제1 통신 프로토콜로 통신하고, 전력 정보는 전력의 가격, 전력 수요 정보 또는 정전 정보를 포함할 수 있다.The communication server may communicate with the power information server supplying the power information through the first communication protocol, and the power information may include price of power, power demand information, or power failure information.
근거리 무선 통신은 와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth)일 수 있다.The near field communication may be Wi-Fi, ZigBee, near Field Communication (NFC), or Bluetooth.
또한, 통신 서버는 암호 키를 생성하고, 충전기와 암호키를 공유하여 충전기를 인증하고, 인증된 충전기와 제2 통신 프로토콜로 통신할 수 있다.In addition, the communication server may generate an encryption key, share the encryption key with the charger to authenticate the charger, and communicate with the authenticated charger in a second communication protocol.
충전기는, 입력되는 AC 전력을 DC 전력으로 컨버팅하는 컨버터, 컨버팅된 DC 전력을 AC 전력으로 인버팅하는 인버터, 인버팅된 AC 전력을 변압하는 변압기 및 변압된 AC 전력을 정류하여 DC 전기를 생성하는 정류기를 포함할 수 있다.The charger converts input AC power into DC power, an inverter for converting converted DC power into AC power, a transformer for converting inverted AC power, and a rectified AC power to generate DC electricity. It may include a rectifier.
그리고, 충전기는 전기 자동차의 결제 정보를 수집하여 충전기 관리 서버로 전달하고 충전기 관리 서버의 제어에 따라 전기 자동차를 충전하고, 충전기 관리 서버는 전달되는 결제 정보에 기초하여 공급 단가를 기준으로 결제 금액을 결정하고, 결정된 결제 금액과 결제 정보를 결제 금액 및 결제 정보에 기초하여 결제를 수행하여 그 결과를 충전기 관리 서버로 전달하는 결제 서버로 전송하며, 결제 서버에서 결제 완료된 거래 내역을 수신하여 충전기로 전달할 수 있다.The charger collects and transmits the payment information of the electric vehicle to the charger management server and charges the electric vehicle under the control of the charger management server, and the charger management server adjusts the payment amount based on the supply unit price based on the transferred payment information. Determine the payment amount and the payment information based on the payment amount and the payment information, and transmit the result to the payment server that delivers the result to the charger management server. Can be.
그리고, 전기 자동차 충전 시스템은 전력을 생산 또는/및 공급하고 자체 송전, 변전 및 배전 설비를 갖춘 적어도 하나의 전력 사업자를 포함하여 생산된 전력을 충전기로 공급하는 전력망을 더 포함하고, 전력망은 충전기 관리 서버와 연결되어, 충전기 관리 서버에 지능형 전력망(smart grid)을 지원할 수 있다.The electric vehicle charging system further includes a power grid for producing or / or supplying power and supplying the generated power to the charger, including at least one power carrier with its own power transmission, substation, and distribution facilities, and the grid manages the charger. Connected with the server, the charger management server can support an intelligent smart grid.
이때, 전력망은 충전기 관리 서버에 전력 가격, 전력 수요 현황, 전력 계통 정보와 같은 전력 정보를 공급하고, 충전기 관리 서버는 충전기에 전력 정보를 전송하고, 충전기의 정보를 전력망에 전송할 수 있다.In this case, the power grid may supply power information such as power price, power demand status, and power system information to the charger management server, and the charger management server may transmit power information to the charger and transmit information of the charger to the power grid.
충전기의 정보는 충전기의 종류 구분을 위한 머신 타입 정보, 충전기가 설치된 충전소 ID 정보 또는 충전기의 물리적인 장비 번호 정보를 포함할 수 있다.The charger information may include machine type information for classifying charger types, charging station ID information on which the charger is installed, or physical equipment number information of the charger.
머신 타입에는 전체 장비, 급속 충전기, 완속 충전기, 비접촉식 충전기, 이륜차용 완속 충전기 또는 이륜차용 급속 충전기를 포함할 수 있다.Machine types may include complete equipment, quick chargers, slow chargers, contactless chargers, slow chargers for motorcycles or quick chargers for motorcycles.
본 발명의 실시 예에 따른 전기 자동차 충전방법은 통신서버가 전기 자동차에 전기를 공급하는 하나 이상의 충전기의 운영을 제어하고, 충전기의 정보를 관리하는 충전기 관리 서버로부터 제1 통신 프로토콜로 충전기 제어신호를 수신하는 단계, 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 하나 이상의 충전기와 통신하기 위한 암호 키를 생성하는 단계, 암호 키를 하나 이상의 충전기와 공유하여 충전기를 인증하는 단계, 충전기 관리 서버와 충전기 사이의 통신 환경을 제공하기 위해, 인증된 충전기와 제2 통신 프로토콜로 통신을 개시하는 단계 및 충전기 관리 서버로부터 수신된 제어신호를 제2 통신 프로토콜로 변환하여 충전기에 전송하는 단계를 포함한다.In the electric vehicle charging method according to an embodiment of the present invention, the communication server controls the operation of one or more chargers for supplying electricity to the electric vehicle, and the charger control signal from the charger management server for managing the information of the charger to the first communication protocol Receiving, generating a cryptographic key for communicating with one or more chargers with a second communication protocol using near field communication, authenticating the charger by sharing the cryptographic key with the one or more chargers, between the charger management server and the charger In order to provide a communication environment, the method includes initiating communication with the authenticated charger through a second communication protocol, and converting a control signal received from the charger management server into a second communication protocol and transmitting the same to the charger.
본 발명의 실시 예에 따른 전기 자동차 충전 시스템 및 전기 자동차 충전방법은 전기 자동차 충전시스템에 필요한 통신 프로토콜을 제공하여 관리 및 그 운용의 효율성을 높이는 효과가 있다.The electric vehicle charging system and the electric vehicle charging method according to an embodiment of the present invention have an effect of increasing the efficiency of management and its operation by providing a communication protocol required for the electric vehicle charging system.
도 1은 본 발명의 실시 예에 따른 전기 자동차 배터리 충전 장치와 전기 자동차간 충전 형태를 나타낸 예시도이다.1 is an exemplary view showing a charging form between an electric vehicle battery charging device and an electric vehicle according to an embodiment of the present invention.
도 2는 본 발명의 실시 예에 따른 전기 자동차 충전 시스템을 도시한 블록도이다.2 is a block diagram illustrating an electric vehicle charging system according to an exemplary embodiment of the present invention.
도 3은 본 발명의 실시 예에 따른 마스터 충전기를 포함하는 전기 자동차 충전 시스템을 도시한 블록도이다.3 is a block diagram illustrating an electric vehicle charging system including a master charger according to an exemplary embodiment of the present invention.
도 4는 본 발명에 따른 전력 공급부의 상세 구성의 일 예를 도시한 도면이다.4 is a diagram illustrating an example of a detailed configuration of a power supply unit according to the present invention.
도 5는 본 발명의 실시 예에 따른 전기 자동차 충전방법의 순서도이다.5 is a flowchart of a method for charging an electric vehicle according to an exemplary embodiment of the present invention.
이하 첨부된 도면을 참조하여 본 발명의 실시 예를 본 발명이 속하는 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세하게 설명한다. 이하 설명에서 동일한 구성 요소에는 설명의 편의상 동일 명칭 및 동일 부호를 부여한다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily practice the present disclosure. In the following description, the same components are given the same names and the same reference numerals for the convenience of description.
본 발명에서 사용되는 용어는 가능한 한 현재 널리 사용되는 일반적인 용어를 선택하였으나, 특정한 경우는 출원인이 임의로 선정한 용어도 있으며 이 경우는 해당되는 발명의 설명부분에서 상세히 그 의미를 기재하였으므로, 단순한 용어의 명칭이 아닌 용어가 가지는 의미로서 본 발명을 파악하여야 한다.The terminology used in the present invention was selected as a general term that is widely used at present, but in some cases, the term is arbitrarily selected by the applicant, and in this case, the meaning of the term is described in detail in the description of the present invention. The present invention should be understood as meanings other than terms.
도 1은 본 발명의 실시 예에 따른 전기 자동차 배터리 충전기(10)와 전기 자동차(20)간 충전 형태를 나타낸 예시도이다. 도시한 바와 같이, 전기 자동차(20)는 배터리(22)가 포함되고, 배터리(22)는 전기 자동차 배터리 충전기(10)에 연결된다. 그리고, 전기 자동차 배터리 충전기(10)는 전력 공급원(energy source)으로부터 전력을 공급받을 수 있다. 전력 공급원은 일반적으로 전기를 생산 및 공급하는 전력공사와 같은 계통(Grid)과, 상기 계통 이외에 전기를 생산 또는/및 공급할 수 있는 수단을 포함하며, 전기 자동차 배터리 충전기(10)에 전기를 공급할 수 있는 모든 전력 공급원을 포함한다. 전력 전송/배전 기관(1) 및 재생 전력 생산자(2)는 전력을 제공하는 전력 공급원의 역할을 수행한다. 예를 들어, 전력 전송/배전 기관(1)은 1차 전력 공급을 담당하는 전력발전소(3, Bulk Generators)를 포함한다. 또한, 재생 전력 생산자(2)는 2차 전력 생산을 위한 저장장치 및 분산전원을 포함하는 전력재활용 수단(4)을 포함한다.1 is an exemplary view showing a charging form between an electric vehicle battery charger 10 and an electric vehicle 20 according to an embodiment of the present invention. As shown, the electric vehicle 20 includes a battery 22, which is connected to the electric vehicle battery charger 10. In addition, the electric vehicle battery charger 10 may receive power from an energy source. The power source generally includes a grid, such as a power corporation that produces and supplies electricity, and means for producing or / and supplying electricity in addition to the grid, and may supply electricity to the electric vehicle battery charger 10. Includes all power sources present. The power transmission / distribution engine 1 and the regenerative power producer 2 serve as power sources for providing power. For example, the power transmission / distribution engine 1 includes power generators 3 (Bulk Generators) in charge of primary power supply. The regenerative power producer 2 also comprises a power recycling means 4 comprising a storage device for secondary power production and a distributed power supply.
전기 자동차 배터리 충전기(10)는 최근 대두되는 현대화된 전력기술과 정보통신기술의 융합과 복합을 통하여 구현된 차세대 전력시스템 및 이의 관리체제를 의미하는 스마트-그리드(Smart-Grid, 지능형 전력망)와 연계도 가능하다. The electric vehicle battery charger 10 is linked with a smart-grid (smart grid), which means a next generation power system and its management system, which are realized through the convergence and complex of modernized power technology and information communication technology. It is also possible.
중앙관리 서버시스템(5)은, 1차 또는/및 2차 전력사업자와 전기 자동차 배터리 충전기(10)가 서로 연계되도록 관리한다. 특히, 중앙관리 서버시스템(5)은 충전기(10)로부터 전력공급요청을 수신하고, 수신된 전력공급요청에 대응하여 1차 또는/및 2차 전력사업자에서 충전기(10)로 전력이 공급되도록 한다. 이 과정에서 중앙관리 서버시스템(5)은 1차 또는/및 2차 전력사업자와 충전기(10) 사이에서 전력 공급/수신을 위한 통신 프로토콜 등 필요한 모든 인프라를 지원 및 제공할 수 있다.The central management server system 5 manages the primary and / or secondary power providers and the electric vehicle battery chargers 10 to be linked with each other. In particular, the central management server system 5 receives the power supply request from the charger 10, and in response to the received power supply request to be supplied power to the charger 10 in the primary or / and secondary power providers. . In this process, the central management server system 5 may support and provide all necessary infrastructure such as a communication protocol for power supply / reception between the primary and / or secondary power providers and the charger 10.
전기 자동차 배터리 충전기(10)는 중앙관리 서버시스템(5)과 통신하는 로컬서버와 전력 수급/공급을 제어하기 위해 스마트 미터(6, smart meter)를 더 포함할 수 있다. 특히, 상기 스마트 미터(6)는 전술한 스마트-그리드 환경에서 전력의 수급/공급 정도, 과금 관련 정보 등에 기초하여 전력 수급/공급을 보다 정밀하게 제어할 수 있다.The electric vehicle battery charger 10 may further include a smart meter 6 for controlling power supply / supply and a local server in communication with the central management server system 5. In particular, the smart meter 6 can more precisely control the power supply / supply based on the supply / demand of the power, charging related information, etc. in the above-described smart-grid environment.
로컬서버(7)는 전력 공급원과 전기 자동차(20) 사이에서 각각에 필요한 정보를 수집, 전달 및 그에 기초하여 다양한 제어 동작이 이루어질 수 있도록 인프라를 제공한다. 예를 들어, 로컬서버(7)는 전기 자동차 배터리 충전기(10)가 전기 자동차(20)와 연결된 경우에는, 전기 자동차(20)로부터 부가정보를 수신한다. 로컬서버(7)는 수신된 부가정보에 기초하여 필요한 전력의 공급을 전력 공급원에 요청한다. 상기 부가정보에는 과금을 위한 정보도 포함되는데, 로컬서버(7)는 전기 자동차(20)로부터 수신된 과금을 위한 정보를 스마트 미터(6) 정보에 기초하여 전력 공급 양 대비 요금을 산출하여 디스플레이하는 등 직접 처리할 수도 있으며, 필요한 경우에는 외부 서버(미도시)로 해당 정보를 전송 후에 처리할 수도 있다. 또한, 로컬서버(7)는 상기한 정보를 중앙관리 서버시스템(5)으로 전송하여 과금 정보를 수신하여 디스플레이할 수도 있다.The local server 7 provides an infrastructure for collecting, transferring and necessary various control operations based on the information necessary for each between the power supply and the electric vehicle 20. For example, when the electric vehicle battery charger 10 is connected to the electric vehicle 20, the local server 7 receives additional information from the electric vehicle 20. The local server 7 requests the power supply source to supply the necessary power based on the received additional information. The additional information includes information for billing, and the local server 7 calculates and displays the fee for the amount of power supply based on the smart meter 6 information for the billing received from the electric vehicle 20. Etc. may be directly processed, and if necessary, the information may be processed after transmission to an external server (not shown). In addition, the local server 7 may transmit the above information to the central management server system 5 to receive and display the charging information.
전력 정보망(8)은 중앙관리 서버시스템, 전력사업자 및 전기 자동차 배터리 충전기에 다양한 전력 정보를 제공할 수 있다.The electric power information network 8 may provide various electric power information to the central management server system, the electric power company and the electric vehicle battery charger.
전기 자동차 배터리 충전기(10) 전기 자동차(20)에 구비된 인넷(innet)과 직접 연결되어 전력을 공급하는 커넥터(connector)로 커플러(coupler)를 구비하여, 상기 인넷과 커플러의 연결을 통해 전기 자동차(20)의 정보를 로컬서버(7)로 전달하고, 전달된 정보에 기초하여 전력 공급원을 통해 수급되는 전력을 상기 커플러를 통해 해당 전기 자동차(20)로 공급하여 전기 자동차(20)의 배터리(22)에 충전한다.An electric vehicle battery charger 10 includes a coupler as a connector that is directly connected to an innet provided in the electric vehicle 20 to supply power, and is connected to the innet and the coupler. The information of the 20 is transmitted to the local server 7, and the electric power supplied to the electric vehicle 20 through the coupler is supplied to the electric vehicle 20 through the coupler based on the transmitted information. 22).
도 2는 본 발명의 실시 예에 따른 전기 자동차 충전 시스템을 도시한 블록도이다. 도시한 바와 같이, 전기 자동차 충전 시스템은 전기 자동차(20)에 전기를 공급하는 하나 이상의 충전기(10), 충전기(10)의 운영을 제어하고, 충전기(10)의 정보를 관리하는 충전기 관리 서버(5), 충전기 관리 서버(5)와 제1 통신 프로토콜로 통신하고, 하나 이상의 충전기(10)와 제1 통신 프로토콜을 변환한 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 통신하여, 충전기 관리 서버(5)와 충전기(10) 사이의 통신 환경을 제공하는 통신 서버(100)를 포함한다.2 is a block diagram illustrating an electric vehicle charging system according to an exemplary embodiment of the present invention. As shown, the electric vehicle charging system controls the operation of one or more charger 10, the charger 10 for supplying electricity to the electric vehicle 20, and a charger management server for managing the information of the charger 10 ( 5), the charger management server 5 communicates with the charger management server 5 through the first communication protocol, and communicates with the one or more chargers 10 with the second communication protocol using the short range wireless communication converted from the first communication protocol. ) And a communication server 100 providing a communication environment between the charger 10.
먼저 전기 자동차(20)와 충전기(10)가 서로 연결되면, 충전기(10)는 활성화가 된다. 여기서, 활성화라 함은 예를 들어, 전기 자동차(20)의 차주 즉, 사용자가 충전기(10)에서 제공하는 유저 인터페이스(UI: User Interface) 등을 통해 충전을 위한 정보를 입력하면, 충전기(10)에서 이를 인식하여 충전을 위한 준비를 하는 상태를 말한다. 달리 말하면, 충전기(10)에서 전기 자동차(20)의 충전을 위해 필요한 프로세스를 수행할 수 있는 상태를 의미한다.First, when the electric vehicle 20 and the charger 10 are connected to each other, the charger 10 is activated. Here, the activation refers to, for example, the owner of the electric vehicle 20, that is, when the user inputs information for charging through a user interface (UI) provided by the charger 10, the charger 10. ) To recognize it and to prepare for charging. In other words, it means a state in which the charger 10 can perform a process necessary for charging the electric vehicle 20.
전술한 바와 같이, 충전기(10)는 전기 자동차(20)의 사용자에게 필요한 정보를 제공하고 사용자의 충전 관련 정보 입력을 위한 유저 인터페이스(UI) 등을 제공한다.As described above, the charger 10 provides necessary information to the user of the electric vehicle 20 and provides a user interface (UI) or the like for inputting charging related information of the user.
또한, 충전기(10)는, 전기 자동차의 배터리관리시스템(BMS)과 소정 프로토콜에 따라 통신하여, 배터리 관련 정보를 수집한다. 이러한 정보의 수집은 예를 들어, 충전기(10)의 커넥터와 전기 자동차의 인넷에 포함된 특정 단자를 통해 이루어질 수 있다.In addition, the charger 10 communicates with the battery management system (BMS) of the electric vehicle according to a predetermined protocol to collect battery related information. The collection of this information may be made, for example, via a connector of the charger 10 and a specific terminal included in the internet of the electric vehicle.
여기서, 충전기(10)의 커넥터와 전기 자동차(20)의 인넷은, 관련 규격에 의해 정해진 바에 따라 다수 개의 단자가 구비될 수 있다. 예를 들어, 충전기(10)의 커넥터는, 전기 자동차(20)에 전기 공급을 위한 전기공급단자를 기본적으로 구비하며, 충전 과정에 필요한 신호 수신 및 공급을 위한 부가 단자를 더 구비할 수 있다. 이러한 부가 단자로는 예를 들어, 접지 단자(ground terminal), 충전 시작/중단 단자(charger start/stop terminal), 연결 체크 단자(connection check terminal) 및 CAN 통신 터미널(Controller Area Network terminal) 등이 포함될 수 있다. 상기에서 CAN 통신은 기기 간에 병렬 연결로 데이터를 주고 받는 통신 프로토콜의 일종이다.Here, the connector of the charger 10 and the internet of the electric vehicle 20 may be provided with a plurality of terminals as determined by the relevant standards. For example, the connector of the charger 10 may basically include an electric supply terminal for supplying electricity to the electric vehicle 20, and may further include an additional terminal for receiving and supplying a signal necessary for a charging process. Such additional terminals include, for example, a ground terminal, a charge start / stop terminal, a connection check terminal, and a CAN area controller. Can be. CAN communication is a kind of communication protocol for transmitting and receiving data through parallel connection between devices.
여기서, 배터리 관련 정보는 예를 들어, 배터리의 현재 잔량, 필요한 충전량, 배터리의 정격 전압 및 전류, 등 배터리 충전과 관련하여 전기 자동차(20)에서 제공 가능한 모든 정보를 포함한다. 이때, 충전기(10)와 전기 자동차의 배터리관리시스템(BMS)은 예를 들어, CAN 통신 프로토콜을 이용하여 통신할 수 있다.Here, the battery-related information includes all information that can be provided by the electric vehicle 20 in connection with battery charging, for example, the current remaining amount of the battery, the required charge amount, the rated voltage and current of the battery, and the like. In this case, the charger 10 and the battery management system BMS of the electric vehicle may communicate using, for example, a CAN communication protocol.
그리고, 충전기(10)는 통신 서버(100)와 근거리 무선 통신을 이용한 제2 통신 프로토콜로 통신할 수 있다. 또한, 제2 통신 프로토콜은 와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth) 중 어느 하나일 수 있다. 일례로, 충전기(10)는 와이파이를 이용하여 통신 서버(100)와 정보를 교환하고, 충전기(10)의 제어 신호를 수신한다.In addition, the charger 10 may communicate with the communication server 100 through a second communication protocol using short-range wireless communication. In addition, the second communication protocol may be any one of Wi-Fi, ZigBee, near Field Communication (NFC), or Bluetooth. For example, the charger 10 exchanges information with the communication server 100 using Wi-Fi and receives a control signal of the charger 10.
그리고, 통신 서버(100)는 제2 프로토콜로 충전기(10)와 통신하는 근거리 무선 통신부(110), 제1 통신 프로토콜로 충전기 관리 서버(5)와 통신하는 통신부(130), 근거리 무선 통신부(110) 및 통신부(130)에서의 신호를 변환하는 신호 처리부(120), 통신 서버(100)의 전반적인 운영을 제어하는 제어부(140)를 포함할 수 있다.In addition, the communication server 100 may include a short range wireless communication unit 110 that communicates with the charger 10 through a second protocol, a communication unit 130 that communicates with the charger management server 5 through a first communication protocol, and a short range wireless communication unit 110. And a signal processor 120 for converting a signal from the communication unit 130, and a controller 140 for controlling overall operation of the communication server 100.
먼저, 통신부(130)는 충전기 관리 서버(5)로부터 충전기(10) 제어 신호 또는 결제 정보를 제1 통신 프로토콜을 통해 수신할 수 있다. 그리고, 통신부(130)는 전력 정보를 공급하는 전력 정보 서버와 상기 제1 통신 프로토콜로 통신할 수도 있다. 예를 들어, 통신부(130)는 공중교환전화망(PSTN: Public Switched Telephone Network), 인터넷 프로토콜 스위트(internet protocol suite) 및 무선 랜(wireless local area network) 중 적어도 하나의 통신 프로토콜을 이용하여 충전기 관리 서버(5) 또는 전력 정보 서버와 통신한다. 그리고, 전력 정보 서버로부터 전력 정보는 전력의 가격, 전력 수요 정보 또는 정전 정보를 포함할 수 있다. First, the communication unit 130 may receive the charger 10 control signal or payment information from the charger management server 5 through the first communication protocol. In addition, the communication unit 130 may communicate with the power information server for supplying power information through the first communication protocol. For example, the communication unit 130 may use a charger management server using at least one communication protocol of a public switched telephone network (PSTN), an internet protocol suite, and a wireless local area network. (5) or communicate with the power information server. The power information from the power information server may include price of power, power demand information, or power failure information.
다음으로, 신호 처리부(120)는 수신된 제어신호, 결제 정보 또는 전력 정보를 변환하여 근거리 무선 통신부(110)로 출력할 수 있다. 신호 처리부(120)는 충전기(10)의 유지 보수 및 제어를 위한 신호를 제2 통신 프로토콜로 변환하고, 이를 근거리 무선 통신부(110)를 통해 충전기(10)로 출력하므로, 충전기 관리 서버(5)에서 충전기(10)를 제어하기 위한 신호를 생성하면 이에 의해 충전기(10)를 제어할 수 있다.Next, the signal processor 120 may convert the received control signal, payment information or power information and output the converted control signal to the short range wireless communication unit 110. The signal processor 120 converts a signal for maintenance and control of the charger 10 into a second communication protocol and outputs the signal to the charger 10 through the short range wireless communication unit 110, thereby managing the charger management server 5. By generating a signal for controlling the charger 10 can thereby control the charger 10.
일례로, 전기 자동차(20)를 충전하기 위해 충전기(10)와 전기 자동차(20)를 연결하고 요금을 결제하면, 충전기 관리 서버(5)는 결제된 요금만큼의 전력을 전기 자동차(20)에 충전하도록 충전기(10) 제어 신호를 생성한다. 그리고, 이를 통신부(130)에 전송하고, 전송된 제어신호는 신호 처리부(120)에서 충전기(10)에 전송하기 위한 제2 통신 프로토콜로 변환된다. 또한, 결제 정보와 전력 정보도 제어신호와 동일한 프로세스를 통해 근거리 무선 통신부(110)로 출력된다.For example, when the charger 10 and the electric vehicle 20 are connected to charge the electric vehicle 20 and the fee is charged, the charger management server 5 transmits the electric power of the charged fee to the electric vehicle 20. The charger 10 generates a control signal to charge. Then, it is transmitted to the communication unit 130, and the transmitted control signal is converted into a second communication protocol for transmission from the signal processing unit 120 to the charger 10. In addition, payment information and power information is also output to the near field communication unit 110 through the same process as the control signal.
제어부(140)는 통신 서버(100)의 전반적인 관리 및 제어를 수행하며, 신호 처리부(120)가 통신부(130)로부터 출력된 제어 신호, 결제 정보 또는 전력 정보를 변환하도록 신호 처리부(120)를 제어한다. 또한, 제어부(140)는 충전기(10)를 인증하기 위한 암호 키를 생성할 수 있다. 암호 키는 신호 처리부(120)로 출력되어 제2 통신 프로토콜로 변환된다. 또한, 충전기(10)와 암호키가 공유되면 통신 서버(100)와 충전기(10)는 제2 통신 프로토콜에 의한 통신이 개시될 수 있다.The control unit 140 performs overall management and control of the communication server 100, and controls the signal processing unit 120 so that the signal processing unit 120 converts a control signal, payment information, or power information output from the communication unit 130. do. In addition, the controller 140 may generate an encryption key for authenticating the charger 10. The encryption key is output to the signal processor 120 and converted into a second communication protocol. In addition, when the encryption key is shared with the charger 10, the communication server 100 and the charger 10 may start communication by a second communication protocol.
그리고, 근거리 무선 통신부(110)는 신호 처리부(120)에서 출력된 제어 신호, 결제 정보 또는 전력 정보를 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 충전기(10)에 전송한다. 이때, 근거리 무선통신은 와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth) 중 어느 하나일 수 있다.The short range wireless communication unit 110 transmits the control signal, payment information, or power information output from the signal processing unit 120 to the charger 10 through a second communication protocol using short range wireless communication. In this case, the short range wireless communication may be any one of Wi-Fi, Zigbee, near field communication (NFC), or Bluetooth.
근거리 무선 통신부(110)는 제어부(140)에서 생성한 암호 키를 충전기(10)에 전송할 수 있다. 일례로, 충전기(10)는 전기 자동차(20)를 충전하려는 사용자의 결제 정보, 전기 자동차(20)의 정보를 수집하여 통신 서버(100)에 전송하므로, 보안의 문제가 있다. 따라서, 충전기(10)와 통신 서버(100)간 정보를 교환하기 전에, 충전기(10)와 통신 서버(100)간 인증을 통해 보안의 문제를 해결할 수 있다. The short range wireless communication unit 110 may transmit the encryption key generated by the controller 140 to the charger 10. For example, since the charger 10 collects payment information of the user who wants to charge the electric vehicle 20 and information of the electric vehicle 20 and transmits the collected information to the communication server 100, there is a security problem. Therefore, before exchanging information between the charger 10 and the communication server 100, it is possible to solve the problem of security through authentication between the charger 10 and the communication server 100.
다음으로, 충전기 관리 서버(5)는 충전기(10)의 운영을 제어하고, 충전기(10)의 정보를 관리한다. 일례로, 충전기 관리 서버(5)는 사용자가 전기 자동차(20)를 충전하기 위해 지불하는 금액, 충전하기 위한 전력에 따라, 충전기(10)가 전기 자동차(20)를 충전하도록 충전기(10)를 제어한다. 이때, 충전기 관리 서버(5)는 전기 자동차(20)의 충전을 개시하는 제어신호를 생성하여 제1 통신 프로토콜로 통신 서버(100)에 이를 전송할 수 있다. 즉, 충전기(10)는 전기 자동차(20)의 결제 정보를 수집하여 충전기 관리 서버(5)로 전달하고 충전기 관리 서버(5)의 제어에 따라 전기 자동차(20)를 충전할 수 있다. Next, the charger management server 5 controls the operation of the charger 10, and manages the information of the charger 10. For example, the charger management server 5 may charge the charger 10 so that the charger 10 charges the electric vehicle 20 according to the amount that the user pays to charge the electric vehicle 20 and the power to charge the electric vehicle 20. To control. At this time, the charger management server 5 may generate a control signal for starting the charging of the electric vehicle 20 and transmit it to the communication server 100 in the first communication protocol. That is, the charger 10 may collect payment information of the electric vehicle 20, transmit the collected information to the charger management server 5, and charge the electric vehicle 20 under the control of the charger management server 5.
한편, 충전기 관리 서버(5)는 결제 서버(9)와 통신하고, 통신 서버(100)로부터 전달되는 결제 정보에 기초하여 공급 단가를 기준으로 결제 금액을 결정하여 이를 결제 서버(9)로 전송할 수 있다. 그러면, 결제 서버(9)는 충전기 관리 서버(5)로부터 결정된 결제 금액과 결제 정보를 결제 금액 및 결제 정보에 기초하여 결제를 수행하여 그 결과를 충전기 관리 서버(5)로 전달할 수 있다. 이때, 통신 서버(100)는 결제 서버(9)에서 결제 완료된 거래 내역을 수신하여 충전기(10)로 전달할 수 있다.Meanwhile, the charger management server 5 may communicate with the payment server 9, determine a payment amount based on the supply unit price based on the payment information transmitted from the communication server 100, and transmit it to the payment server 9. have. Then, the payment server 9 may perform payment based on the payment amount and payment information determined from the charger management server 5 and transmit the result to the charger management server 5. In this case, the communication server 100 may receive the payment details of the transaction completed by the payment server 9 and transmit the received transaction details to the charger 10.
마지막으로, 전력망(8)은 전력을 생산 또는/및 공급하고 자체 송전, 변전 및 배전 설비를 갖춘 적어도 하나의 전력 사업자를 포함하고, 생산된 전력을 충전기(10)로 공급한다. 그리고, 전력망(8)은 충전기 관리 서버(5)에 지능형 전력망을 지원하여, 전력 정보를 송신할 수 있다.Finally, the grid 8 includes at least one power carrier that produces or / and supplies power and has its own power transmission, substation and distribution facilities, and supplies the generated power to the charger 10. In addition, the power grid 8 may support the intelligent power grid to the charger management server 5 to transmit power information.
그리고, 본 발명의 실시 예에 따른 전기 자동차 충전 시스템의 마스터 충전기(12)는 마스터 충전기(12)를 포함할 수 있다. 이하에서는 도 3을 참조하여 마스터 충전기(12)를 포함하는 전기 자동차 충전 시스템에 대해 설명한다.In addition, the master charger 12 of the electric vehicle charging system according to the embodiment of the present invention may include a master charger 12. Hereinafter, an electric vehicle charging system including the master charger 12 will be described with reference to FIG. 3.
도 3은 본 발명의 실시 예에 따른 마스터 충전기(12)를 포함하는 전기 자동차 충전 시스템을 도시한 블록도이다. 도시한 바와 같이, 전기 자동차 충전 시스템은 충전기(10), 마스터 충전기(12), 충전기 관리 서버(5)를 포함한다. 3 is a block diagram illustrating an electric vehicle charging system including a master charger 12 according to an exemplary embodiment of the present invention. As shown, the electric vehicle charging system includes a charger 10, a master charger 12, and a charger management server 5.
이때, 마스터 충전기(12)는 근거리 무선 통신부(112), 신호 처리부(122), 통신부(132), 제어부(142), 인터페이스부(150), 전력 공급부(160), 디스플레이부(170)를 포함한다. 먼저, 통신부(132)는 충전기 관리 서버(5)로부터 충전기(10) 제어 신호 또는 결제 정보를 제1 통신 프로토콜을 통해 수신할 수 있다. 그리고, 통신부(132)는 전력 정보를 공급하는 전력 정보 서버와 상기 제1 통신 프로토콜로 통신할 수도 있다. 예를 들어, 통신부(132)는 공중교환전화망(PSTN: Public Switched Telephone Network), 인터넷 프로토콜 스위트(internet protocol suite) 및 무선 랜(wireless local area network) 중 적어도 하나의 통신 프로토콜을 이용하여 충전기 관리 서버(5) 또는 전력 정보 서버와 통신한다. 그리고, 전력 정보 서버로부터 전력 정보는 전력의 가격, 전력 수요 정보 또는 정전 정보를 포함할 수 있다. In this case, the master charger 12 includes a short range wireless communication unit 112, a signal processing unit 122, a communication unit 132, a control unit 142, an interface unit 150, a power supply unit 160, and a display unit 170. do. First, the communication unit 132 may receive the charger 10 control signal or payment information from the charger management server 5 through the first communication protocol. In addition, the communication unit 132 may communicate with the power information server for supplying power information through the first communication protocol. For example, the communication unit 132 may use a charger management server using at least one communication protocol of a public switched telephone network (PSTN), an internet protocol suite, and a wireless local area network. (5) or communicate with the power information server. The power information from the power information server may include price of power, power demand information, or power failure information.
다음으로, 신호 처리부(122)는 수신된 제어신호, 결제 정보 또는 전력 정보를 변환하여 근거리 무선 통신부(112)로 출력할 수 있다. 신호 처리부(122)는 충전기(10)의 유지 보수 및 제어를 위한 신호를 제2 통신 프로토콜로 변환하고, 이를 근거리 무선 통신부(112)를 통해 충전기(10)로 출력하므로, 충전기 관리 서버(5)에서 충전기(10)를 제어하기 위한 신호를 생성하면 이에 의해 충전기(10)를 제어할 수 있다.Next, the signal processor 122 may convert the received control signal, payment information or power information and output the converted control signal to the short range wireless communication unit 112. Since the signal processor 122 converts a signal for maintenance and control of the charger 10 into a second communication protocol and outputs the signal to the charger 10 through the short range wireless communication unit 112, the charger management server 5. By generating a signal for controlling the charger 10 can thereby control the charger 10.
일례로, 전기 자동차(20)를 충전하기 위해 충전기(10)와 전기 자동차(20)를 연결하고 요금을 결제하면, 충전기 관리 서버(5)는 결제된 요금만큼의 전력을 전기 자동차(20)에 충전하도록 충전기(10) 제어 신호를 생성한다. 그리고, 이를 통신부(132)에 전송하고, 전송된 제어신호는 신호 처리부(122)에서 충전기(10)에 전송하기 위한 제2 통신 프로토콜로 변환된다. 또한, 결제 정보와 전력 정보도 제어신호와 동일한 프로세스를 통해 근거리 무선 통신부(112)로 출력된다.For example, when the charger 10 and the electric vehicle 20 are connected to charge the electric vehicle 20 and the fee is charged, the charger management server 5 transmits the electric power of the charged fee to the electric vehicle 20. The charger 10 generates a control signal to charge. Then, it is transmitted to the communication unit 132, and the transmitted control signal is converted into a second communication protocol for transmission from the signal processing unit 122 to the charger 10. In addition, payment information and power information is also output to the near field communication unit 112 through the same process as the control signal.
제어부(142)는 마스터 충전기(12)의 전반적인 관리 및 제어를 수행하며, 신호 처리부(122)가 통신부(132)로부터 출력된 제어 신호, 결제 정보 또는 전력 정보를 변환하도록 신호 처리부(122)를 제어한다. 또한, 제어부(142)는 충전기(10)를 인증하기 위한 암호 키를 생성할 수 있다. 암호 키는 신호 처리부(122)로 출력되어 제2 통신 프로토콜로 변환된다. 또한, 마스터 충전기(12)와 충전기(10)는 암호 키를 공유하게 되어, 제2 통신 프로토콜에 의한 통신을 개시할 수 있다.The controller 142 performs overall management and control of the master charger 12, and controls the signal processor 122 so that the signal processor 122 converts a control signal, payment information, or power information output from the communication unit 132. do. In addition, the controller 142 may generate an encryption key for authenticating the charger 10. The encryption key is output to the signal processor 122 and converted into a second communication protocol. In addition, the master charger 12 and the charger 10 share an encryption key, so that communication with the second communication protocol can be initiated.
그리고, 근거리 무선 통신부(112)는 신호 처리부(122)에서 출력된 제어 신호, 결제 정보 또는 전력 정보를 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 충전기(10)에 전송한다. 이때, 근거리 무선통신은 와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth) 중 어느 하나일 수 있다.The short range wireless communication unit 112 transmits the control signal, payment information, or power information output from the signal processing unit 122 to the charger 10 through a second communication protocol using short range wireless communication. In this case, the short range wireless communication may be any one of Wi-Fi, Zigbee, near field communication (NFC), or Bluetooth.
근거리 무선 통신부(112)는 제어부(142)에서 생성한 암호 키를 충전기(10)에 전송할 수 있다. 일례로, 충전기(10)는 전기 자동차(20)를 충전하려는 사용자의 결제 정보, 전기 자동차(20)의 정보를 수집하여 마스터 충전기(12)에 전송하므로, 보안의 문제가 있다. 따라서, 충전기(10)와 마스터 충전기(12)간 정보를 교환하기 전에, 충전기(10)와 마스터 충전기(12)간 인증을 통해 보안의 문제를 해결할 수 있다. The short range wireless communication unit 112 may transmit the encryption key generated by the controller 142 to the charger 10. For example, since the charger 10 collects payment information of the user who wants to charge the electric vehicle 20 and information of the electric vehicle 20 and transmits the collected information to the master charger 12, there is a security problem. Therefore, before exchanging information between the charger 10 and the master charger 12, it is possible to solve the problem of security through authentication between the charger 10 and the master charger 12.
다음으로, 인터페이스부(150)는 전기 자동차(20)를 충전하기 위한 사용자의 입력을 수신할 수 있다. 사용자는 충전 금액, 충전 전력량 또는 충전 시간 중 어느 하나를 선택하여 전기 자동차(20)를 충전할 수 있다. 일례로, 디스플레이부(170)가 전기 자동차(20)에 충전할 전력량을 분할하여 표시하면, 사용자 인터페이스부(150)의 조작을 통하여 충전할 전력량을 선택하고, 제어부(142)는 전력 공급부(160)를 통해 배터리에 전류를 인가한다. 그리고, 인터페이스부(150)는 키 패드(key pad) 돔 스위치 (dome switch), 터치 패드(정압/정전), 조그 휠, 조그 스위치일 수 있다.Next, the interface unit 150 may receive a user input for charging the electric vehicle 20. The user may select any one of a charging amount, a charging power amount, or a charging time to charge the electric vehicle 20. For example, when the display unit 170 divides and displays the amount of power to be charged on the electric vehicle 20, the amount of power to be charged is selected through an operation of the user interface unit 150, and the controller 142 is the power supply unit 160. Current is applied to the battery. The interface unit 150 may be a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, and a jog switch.
그리고, 디스플레이부(170)는 충전되는 전력 가격, 충전하는데 걸리는 시간, 충전된 전력으로 전기 자동차(20)가 주행할 수 있는 거리를 표시할 수 있다. 제어부(142)는 상기의 값들을 계산하여 디스플레이부(170)에 출력하고, 디스플레이부(170)는 이를 표시할 수 있다. In addition, the display unit 170 may display a distance at which the electric vehicle 20 may be driven by the price of the electric power to be charged, the time required to charge the electric power, and the charged electric power. The controller 142 may calculate the values and output the calculated values to the display unit 170, and the display unit 170 may display them.
본 발명의 실시 예에 따른 마스터 충전기(12) 또는 충전기(10)는 전력 공급부를 포함할 수 있으며, 전력 공급부에 대해서는 이하, 도 4를 참조하여 설명한다.The master charger 12 or the charger 10 according to an embodiment of the present invention may include a power supply unit, which will be described below with reference to FIG. 4.
도 4는 본 발명에 따른 전력 공급부의 상세 구성의 일 예를 도시한 도면이다. 도시한 바와 같이, 전력 공급부는, 컨버터(converter), 인버터(inverter), 변압기(transformer), 정류기(rectifier) 및 누전 검출기(324,334)를 포함한다. 전력 공급부는 전력망(8)의 AC 전력을 공급받아 이를 DC 전기로 변환하여 전기 자동차(20)로 공급한다.4 is a diagram illustrating an example of a detailed configuration of a power supply unit according to the present invention. As shown, the power supply includes a converter, an inverter, a transformer, a rectifier, and a ground fault detector 324, 334. The power supply unit receives the AC power of the electric power grid 8 and converts it into DC electricity and supplies it to the electric vehicle 20.
제1 누전 검출기(324)는, 전력망(8)을 통하여 AC 전원이 전력 공급부로 공급되는 과정에서 누전이 발생하는지 검사한다. 여기서, 제1 누전 검출기(324)는, 검사 결과 누전이 검출되면, 릴레이(relay) 등을 이용하여 상기 전력망(8)으로부터 전력 공급부로 AC 전력이 공급되지 않도록 제어 및 처리한다.The first ground fault detector 324 checks whether a ground fault occurs while AC power is supplied to the power supply unit through the power grid 8. Here, when a short circuit is detected as a result of the test, the first ground fault detector 324 controls and processes the AC power not to be supplied from the electric power grid 8 to the power supply unit by using a relay or the like.
컨버터(326)는, 전력망(8)에서 공급되는 AC 전원을 DC 전원으로 컨버팅(converting)한다.The converter 326 converts AC power supplied from the electric power grid 8 into DC power.
인버터(328)는, 컨버터(326)에서 컨버팅된 DC 전원을 다시 AC 전원으로 인버팅한다.The inverter 328 inverts the DC power converted in the converter 326 back to the AC power.
변압기(330)는, 전력망(8)과 전기 자동차(20)를 전기적으로 절연시키고, 입력되는 인버팅된 AC 전원을 전기 자동차 충전에 필요한 정도의 전압으로 변압한다.The transformer 330 electrically insulates the electric power grid 8 and the electric vehicle 20, and converts the inverted AC power input to a voltage necessary to charge the electric vehicle.
정류기(332)는, 변압된 AC 전원을 정류하여 원하는 DC 전기로 생성한다.The rectifier 332 rectifies the transformed AC power to generate desired DC electricity.
상술한 컨버터(326), 인버터(328) 및 변압기(330)는, 전력망(8)과 전력 공급부 사이의 전력 수급/공급 방식의 차이를 조정하기 위한 것으로, 필요에 따라 일부 구성이 생략되거나 추가될 수도 있다.The converter 326, the inverter 328, and the transformer 330 described above are used to adjust the difference in power supply / supply scheme between the power grid 8 and the power supply, and some components may be omitted or added as necessary. It may be.
제2 누전 검출기(334)는, 정류기(332)에서 정류된 DC 전기가 전기 자동차(20)로 공급되는 과정에서 누전이 발생하는지 검사한다. 여기서, 제2 누전 검출기(334)는, 검출 결과 누전이 검출되면, 전술한 제1 누전 검출기(324)와 마찬가지로 릴레이 등의 구성을 이용하여 전력 공급부의 DC 전기가 더 이상 전기 자동차(20)로 공급되지 않도록 차단한다.The second ground fault detector 334 inspects whether a ground fault occurs while DC electricity rectified by the rectifier 332 is supplied to the electric vehicle 20. Here, when a short circuit is detected as a result of the detection of the second ground fault detector 334, the DC electricity of the power supply unit is no longer transferred to the electric vehicle 20 using a configuration such as a relay as in the first ground fault detector 324 described above. Shut off the supply.
상기에서 제1 누전 검출기(324)와 제2 누전 검출기(334)는, 각각 전력망(8)와 전력 공급부 및 전력 공급부와 전기 자동차(20) 사이의 전력 차단을 위해 릴레이를 이용하는 것을 예시하였다. In the above, the first ground fault detector 324 and the second ground fault detector 334 illustrate the use of a relay to cut off power between the power grid 8, the power supply unit, and the power supply unit and the electric vehicle 20, respectively.
각 누전 검출기는, 접지와 연결된 각 저항, 상기 각 저항과 부하에 전력을 공급하는 링크단 사이를 연결하고, 입력되는 고전압을 감압하는 감압부, 링크단과 접지 사이의 이득을 얻는 가산부 및 상기 가산부의 이득으로부터 누전 여부를 판단하는 제어부(140)를 포함하여 구성될 수 있다.Each ground fault detector is connected between each resistor connected to ground, each resistor and a link stage for supplying power to the load, and a decompression unit for reducing the input high voltage, an adder for obtaining a gain between the link stage and the ground, and the addition. The controller 140 may be configured to determine whether a short circuit occurs from a negative gain.
하지만, 이는 본 발명에 따른 일 실시 예일 뿐 본 발명의 권리범위는 상기한 예시에 한정되지 않고 릴레이를 포함하여 둘 이상의 구성들을 서로 전기적 또는/및 물리적으로 연결/해제 가능한 다양한 수단을 이용 가능하다.However, this is only an embodiment according to the present invention, and the scope of the present invention is not limited to the above-described examples, and various means capable of electrically or / physically connecting / disconnecting two or more components from each other, including a relay, may be used.
본 발명의 실시 예에 따른 전기 자동차 충전 시스템은 충전기 관리 서버(5)가 통신하기 위해 충전기(10) 각각이 제1 통신 프로토콜을 사용하지 않고, 통신 서버(100)와 충전기 관리 서버(5)간 제1 통신 프로토콜을 사용하게 되어, 복수의 충전기(10)를 사용하는 경우에도 부가적인 회선 임대에 따른 비용이 추가적으로 발생하지 않는 효과가 있다.In the electric vehicle charging system according to an exemplary embodiment of the present invention, the charger 10 does not use the first communication protocol for each of the charger 10 to communicate with each other, and the communication server 100 and the charger management server 5 do not use each other. Since the first communication protocol is used, an additional line lease cost is not additionally generated even when a plurality of chargers 10 are used.
그리고, 전기 자동차 충전 시스템은 근거리 무선통신을 사용하므로, 통신선 부설이 요구되지 않고, 충전기(10)는 근거리 무선통신으로 통신하기 위한 통신 모뎀을 추가적으로 포함시키면 되므로 비용 절감의 효과가 있다.In addition, since the electric vehicle charging system uses short-range wireless communication, a communication line is not required and the charger 10 additionally includes a communication modem for communicating in short-range wireless communication, thereby reducing the cost.
이하에서는 상기와 같이 구성되는 전기 자동차 충전 시스템의 전기 자동차 충전방법에 대해 도 5를 참조하여 설명한다. Hereinafter, an electric vehicle charging method of the electric vehicle charging system configured as described above will be described with reference to FIG. 5.
도 5는 본 발명의 실시 예에 따른 전기 자동차 충전방법의 순서도이다. 도시한 바와 같이, 통신 서버(100)의 제어부(140)는 암호 키를 생성(S100)한다. 생성된 암호 키는 근거리 무선 통신부(110)로 출력되며, 근거리 무선 통신부(110)는 충전기(10)와 통신을 개시하기 위해 생성된 암호 키를 충전기(10)와 공유(S102)한다. 통신 서버(100)는 암호 키의 공유가 완료된 충전기(10)를 인증(S104)하고 충전기(10)와의 통신을 개시한다.5 is a flowchart of a method for charging an electric vehicle according to an exemplary embodiment of the present invention. As shown, the control unit 140 of the communication server 100 generates an encryption key (S100). The generated encryption key is output to the short range wireless communication unit 110, and the short range wireless communication unit 110 shares the generated encryption key with the charger 10 to initiate communication with the charger 10 (S102). The communication server 100 authenticates the charger 10 in which the sharing of the encryption key is completed (S104) and starts communication with the charger 10.
통신 서버(100)와 충전기(10)가 통신을 개시하고, 충전기(10)는 충전기(10) 정보 또는 전기 자동차(20)의 정보를 통신 서버(100)에 전송(S106)한다. 예를 들어, 사용자가 전기 자동차(20)를 충전하기 위해, 충전기(10)와 전기 자동차(20)를 연결하면, CAN통신에 의해 전기 자동차(20)의 정보가 충전기(10)로 전송된다. 충전기(10)는 수신된 전기 자동차(20) 정보와, 충전기(10)의 종류 구분을 위한 머신 타입 정보, 충전기(10)가 설치된 충전소 ID 정보, 충전기(10)의 물리적인 장비 번호 정보, 충전 금액 결제를 위한 사용자의 카드 정보 또는 결제 정보를 통신 서버(100)에 전송할 수 있다.The communication server 100 and the charger 10 start communication, and the charger 10 transmits the information of the charger 10 or the information of the electric vehicle 20 to the communication server 100 (S106). For example, when the user connects the charger 10 and the electric vehicle 20 to charge the electric vehicle 20, information of the electric vehicle 20 is transmitted to the charger 10 by CAN communication. The charger 10 receives the received electric vehicle 20 information, machine type information for classifying the type of the charger 10, charging station ID information on which the charger 10 is installed, physical equipment number information of the charger 10, and charging. The card information or payment information of the user for payment of the amount may be transmitted to the communication server 100.
그러면, 통신 서버(100)는 수신된 충전기(10) 정보 및 결제 정보를 충전기 관리 서버(5)로 전송(S108)한다. 다음으로, 충전기 관리 서버(5)는 수신된 결제 정보를 통해 결제 금액을 결정(S110)한다. 일례로, 충전기 관리 서버(5)는 사용자가 선택한 충전 전력량과 현재 단위 전력량당 금액을 곱해, 결제 금액을 결정한다. Then, the communication server 100 transmits the received charger 10 information and payment information to the charger management server 5 (S108). Next, the charger management server 5 determines the payment amount through the received payment information (S110). In one example, the charger management server 5 determines the payment amount by multiplying the amount of charging power selected by the user and the current amount per unit power.
이후, 충전기 관리 서버(5)는 결제를 위해 결제 서버(9)에 결제 금액을 전송(S112)한다. 결제 서버(9)는 결제 금액에 따른 결제를 수행(S114)하고, 거래 내역을 충전기 관리 서버(5)에 전송(S116)한다.Thereafter, the charger management server 5 transmits the payment amount to the payment server 9 for payment (S112). The payment server 9 performs payment according to the payment amount (S114), and transmits the transaction details to the charger management server 5 (S116).
충전기 관리 서버(5)는 충전기(10)를 제어하기 위한 신호를 생성(S118)한다. 즉, 결제가 완료되면 전기 자동차(20)를 충전하기 위한 제어 신호를 생성하여, 제1 통신 프로토콜로 통신 서버(100)에 제어 신호를 전송(S120)한다. 예를 들어, 충전기 관리 서버(5)는 충전기(10) 정보를 통해 전기 자동차(20)와 연결된 충전기(10)가 정해진 전력량으로 전기 자동차(20)를 충전하도록 제어하는 신호를 생성한다. 제어 신호는 하나 이상의 충전기(10)가 밀집되어 있는 장소에서 전기 자동차(20)를 충전하기 위한 충전기(10)를 선택하고, 선택한 충전기(10)가 전기 자동차(20)에 인가하는 전류의 양과 충전기(10)가 전기 자동차(20)를 충전하는 시간을 결정하여 충전하도록 충전기(10)를 제어할 수 있다.The charger management server 5 generates a signal for controlling the charger 10 (S118). That is, when the payment is completed, generates a control signal for charging the electric vehicle 20, and transmits the control signal to the communication server 100 in the first communication protocol (S120). For example, the charger management server 5 generates a signal for controlling the charger 10 connected to the electric vehicle 20 to charge the electric vehicle 20 with a predetermined amount of power through the charger 10 information. The control signal selects the charger 10 for charging the electric vehicle 20 in a place where one or more chargers 10 are concentrated, and the amount of current and the amount of current that the selected charger 10 applies to the electric vehicle 20. The charger 10 may be controlled to determine and charge the time at which the electric vehicle 20 charges the electric vehicle 20.
즉, 충전기 관리 서버(5)는 물리적인 장비 번호로 결제가 완료된 충전기(10)를 파악하고, 장비 번호에 해당하는 충전기(10)가 전기 자동차(20)를 충전하도록 제어하는 신호를 생성한다.That is, the charger management server 5 identifies the charger 10 that has been paid by the physical equipment number, and generates a signal for controlling the charger 10 corresponding to the equipment number to charge the electric vehicle 20.
다음으로, 신호 처리부(120)는 충전기(10)에 전송하기 위한 제2 통신 프로토콜로 제어 신호를 변환(S122)한다. 통신 서버(100)와 충전기(10)는 제2 프로토콜에 의해 통신이 가능하므로, 제1 프로토콜로 수신된 제어 신호를 변환한다. 이후, 근거리 무선 통신부(110)는 제2 프로토콜로 변환된 제어 신호를 충전기(10)에 전송(S124)한다. 그러면, 충전기(10)는 전송된 제어 신호에 따라 전기 자동차(20)를 충전(S126)한다.Next, the signal processor 120 converts the control signal to the second communication protocol for transmitting to the charger 10 (S122). Since the communication server 100 and the charger 10 may communicate by the second protocol, the communication server 100 and the charger 10 convert the control signal received by the first protocol. Thereafter, the short range wireless communication unit 110 transmits the control signal converted into the second protocol to the charger 10 (S124). Then, the charger 10 charges the electric vehicle 20 according to the transmitted control signal (S126).
상기에서 본 발명의 바람직한 실시 예에 대하여 설명하였지만, 본 발명은 이에 한정되는 것이 아니고 특허청구범위와 발명의 상세한 설명 및 첨부한 도면의 범위 안에서 여러 가지로 변형하여 실시하는 것이 가능하고 이 또한 본 발명의 범위에 속하는 것은 당연하다.Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.
전기 자동차 충전 시스템 및 전기 자동차 충전방법은 고유가 시대에 사용될 수 있는 전기 자동차를 용이하게 충전할 수 있으며, 충전에 필요한 통신 프로토콜을 제공하여 관리 및 그 운용의 효율을 높일 수 있어 산업상 이용가능성이 있다.The electric vehicle charging system and the electric vehicle charging method can easily charge the electric vehicle that can be used in the high oil price era, and can provide industrial communication by providing the communication protocol required for charging to increase the efficiency of management and its operation. .

Claims (20)

  1. 전기 자동차에 전기를 공급하는 하나 이상의 충전기;One or more chargers for supplying electricity to the electric vehicle;
    상기 충전기의 운영을 제어하고, 상기 충전기의 정보를 관리하는 충전기 관리 서버; 및A charger management server that controls the operation of the charger and manages information of the charger; And
    상기 충전기 관리 서버와 제1 통신 프로토콜로 통신하고, 상기 하나 이상의 충전기와 상기 제1 통신 프로토콜을 변환한 근거리 무선 통신을 이용하는 제2 통신 프로토콜로 통신하여, 상기 충전기 관리 서버와 상기 충전기 사이의 통신 환경을 제공하는 통신 서버;A communication environment between the charger management server and the charger by communicating with the charger management server using a first communication protocol and by communicating with the at least one charger and a second communication protocol using short-range wireless communication that converts the first communication protocol. Providing a communication server;
    를 포함하는 전기 자동차 충전시스템.Electric vehicle charging system comprising a.
  2. 제1 항에 있어서,The method of claim 1,
    상기 통신 서버는 상기 하나 이상의 충전기 중 어느 하나의 마스터 충전기에 포함되고,The communication server is included in a master charger of any one or more of the chargers,
    상기 마스터 충전기를 제외한 충전기는 상기 마스터 충전기와 상기 제2 통신 프로토콜로 통신하는 전기 자동차 충전 시스템.Chargers other than the master charger is an electric vehicle charging system for communicating with the master charger in the second communication protocol.
  3. 제1 항에 있어서,The method of claim 1,
    상기 통신 서버는,The communication server,
    전력 정보를 공급하는 전력 정보 서버와 상기 제1 통신 프로토콜로 통신하고, Communicate with a power information server that supplies power information in the first communication protocol,
    상기 전력 정보는,The power information is,
    전력의 가격, 전력 수요 정보 또는 정전 정보를 포함하는 전기 자동차 충전 시스템.An electric vehicle charging system comprising price of electricity, power demand information or power outage information.
  4. 제1 항에 있어서,The method of claim 1,
    상기 근거리 무선 통신은,The short range wireless communication,
    와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth)인 전기 자동차 충전 시스템.Electric vehicle charging system with Wi-Fi, ZigBee, near Field Communication (NFC) or Bluetooth.
  5. 제1 항에 있어서,The method of claim 1,
    상기 통신 서버는,The communication server,
    암호 키를 생성하고, 상기 충전기와 상기 암호키를 공유하여 상기 충전기를 인증하고, 상기 인증된 충전기와 상기 제2 통신 프로토콜로 통신하는 전기 자동차 충전 시스템.Generate an encryption key, share the encryption key with the charger to authenticate the charger, and communicate with the authenticated charger in the second communication protocol.
  6. 제1 항에 있어서, The method of claim 1,
    상기 충전기는,The charger,
    입력되는 AC 전력을 DC 전력으로 컨버팅하는 컨버터;A converter for converting input AC power into DC power;
    컨버팅된 DC 전력을 AC 전력으로 인버팅하는 인버터;An inverter for converting the converted DC power into AC power;
    인버팅된 AC 전력을 변압하는 변압기; 및A transformer for transforming the inverted AC power; And
    변압된 AC 전력을 정류하여 DC 전기를 생성하는 정류기;A rectifier for rectifying the transformed AC power to generate DC electricity;
    를 포함하는 전기 자동차 충전 시스템.Electric vehicle charging system comprising a.
  7. 제1 항에 있어서,The method of claim 1,
    상기 충전기는 상기 전기 자동차의 결제 정보를 수집하여 상기 충전기 관리 서버로 전달하고 상기 충전기 관리 서버의 제어에 따라 전기 자동차를 충전하고,The charger collects and transfers payment information of the electric vehicle to the charger management server and charges the electric vehicle under the control of the charger management server.
    상기 충전기 관리 서버는 전달되는 상기 결제 정보에 기초하여 공급 단가를 기준으로 결제 금액을 결정하고, 결정된 결제 금액과 결제 정보를 상기 결제 금액 및 상기 결제 정보에 기초하여 결제를 수행하여 그 결과를 상기 충전기 관리 서버로 전달하는 결제 서버로 전송하며, 상기 결제 서버에서 결제 완료된 거래 내역을 수신하여 충전기로 전달하는 전기 자동차 충전 시스템.The charger management server determines a payment amount based on a supply unit price based on the transferred payment information, performs a payment based on the determined payment amount and payment information based on the payment amount and the payment information and returns the result. The electric vehicle charging system for transmitting to the payment server to deliver to the management server, and receives the payment history of the transaction completed in the payment server and delivers to the charger.
  8. 제1 항에 있어서,The method of claim 1,
    전력을 생산 또는/및 공급하고 자체 송전, 변전 및 배전 설비를 갖춘 적어도 하나의 전력 사업자를 포함하여 생산된 전력을 충전기로 공급하는 전력망을 더 포함하고,A power grid for producing or / or supplying power and for supplying the generated power to a charger, including at least one utility with its own power transmission, substation and distribution facilities,
    상기 전력망은 상기 충전기 관리 서버와 연결되어, 상기 충전기 관리 서버에 지능형 전력망(smart grid)을 지원하는 전기 자동차 충전 시스템. The electric power grid is connected to the charger management server, the electric vehicle charging system for supporting the intelligent grid (smart grid) to the charger management server.
  9. 제8 항에 있어서,The method of claim 8,
    상기 전력망은 상기 충전기 관리 서버에 전력 가격, 전력 수요 현황, 전력 계통 정보와 같은 전력 정보를 공급하고,The power grid supplies power information such as power price, power demand status, and power system information to the charger management server.
    상기 충전기 관리 서버는 상기 충전기에 상기 전력 정보를 전송하고, 상기 충전기의 정보를 상기 전력망에 전송하는 전기 자동차 충전 시스템.The charger management server transmits the power information to the charger, the electric vehicle charging system for transmitting the information of the charger to the power grid.
  10. 제1 항에 있어서,The method of claim 1,
    상기 충전기의 정보는,Information of the charger,
    상기 충전기의 종류 구분을 위한 머신 타입 정보, 상기 충전기가 설치된 충전소 ID 정보 또는 상기 충전기의 물리적인 장비 번호 정보를 포함하는 전기 자동차 충전 시스템.Electric vehicle charging system including machine type information for sorting the type of charger, charging station ID information installed the charger or physical equipment number information of the charger.
  11. 제10 항에 있어서,The method of claim 10,
    상기 머신 타입에는,In the machine type,
    전체 장비, 급속 충전기, 완속 충전기, 비접촉식 충전기, 이륜차용 완속 충전기 또는 이륜차용 급속 충전기를 포함하는 전기 자동차 충전 시스템.Electric vehicle charging system including complete equipment, quick charger, slow charger, contactless charger, slow charger for motorcycle or quick charger for motorcycle.
  12. 통신서버가 전기 자동차에 전기를 공급하는 하나 이상의 충전기의 운영을 제어하고, 상기 충전기의 정보를 관리하는 충전기 관리 서버로부터 제1 통신 프로토콜로 충전기 제어신호를 수신하는 단계;A communication server controlling the operation of at least one charger for supplying electricity to the electric vehicle, and receiving a charger control signal through a first communication protocol from a charger management server managing information of the charger;
    근거리 무선 통신을 이용하는 제2 통신 프로토콜로 상기 하나 이상의 충전기와 통신하기 위한 암호 키를 생성하는 단계;Generating an encryption key for communicating with the one or more chargers in a second communication protocol using near field communication;
    상기 암호 키를 상기 하나 이상의 충전기와 공유하여 상기 충전기를 인증하는 단계; Authenticating the charger by sharing the encryption key with the one or more chargers;
    상기 충전기 관리 서버와 상기 충전기 사이의 통신 환경을 제공하기 위해, 상기 인증된 충전기와 상기 제2 통신 프로토콜로 통신을 개시하는 단계; 및Initiating communication with the authenticated charger with the second communication protocol to provide a communication environment between the charger management server and the charger; And
    상기 충전기 관리 서버로부터 수신된 상기 제어신호를 제2 통신 프로토콜로 변환하여 상기 충전기에 전송하는 단계;Converting the control signal received from the charger management server into a second communication protocol and transmitting it to the charger;
    를 포함하는 전기 자동차 충전방법.Electric vehicle charging method comprising a.
  13. 제12 항에 있어서,The method of claim 12,
    상기 통신 서버는 상기 하나 이상의 충전기 중 어느 하나의 마스터 충전기에 포함되고,The communication server is included in a master charger of any one or more of the chargers,
    상기 마스터 충전기를 제외한 충전기는 상기 마스터 충전기와 상기 제2 통신 프로토콜로 통신하는 전기 자동차 충전방법.Chargers other than the master charger is an electric vehicle charging method for communicating with the master charger in the second communication protocol.
  14. 제12 항에 있어서,The method of claim 12,
    상기 통신 서버가 전력 정보를 공급하는 전력 정보 서버와 상기 제1 통신 프로토콜로 통신하는 단계를 더 포함하고, Communicating by the communication server with the power information server providing power information in the first communication protocol,
    상기 전력 정보는 전력의 가격, 전력 수요 정보 또는 정전 정보를 포함하는 전기 자동차 충전방법.The electric power information charging method including electric power price, electric power demand information or power failure information.
  15. 제12 항에 있어서,The method of claim 12,
    상기 근거리 무선 통신은 와이파이(wi-fi), 지그비(zigbee), 엔에프씨(NFC, near field communication) 또는 블루투스(blutooth)인 전기 자동차 충전방법. The short-range wireless communication is Wi-Fi, ZigBee (NFC), near field communication (NFC) or Bluetooth (bluetooth) electric vehicle charging method.
  16. 제12 항에 있어서,The method of claim 12,
    상기 전기 자동차의 결제 정보를 수집하는 단계;Collecting payment information of the electric vehicle;
    상기 결제 정보를 상기 충전기 관리 서버로 상기 제1 통신 프로토콜로 통신하여 전달하는 단계;Communicating the payment information to the charger management server through the first communication protocol;
    상기 결제 정보에 기초하여 공급 단가를 기준으로 결제 금액을 결정하는 단계;Determining a payment amount based on a supply unit price based on the payment information;
    결정된 결제 금액과 결제 정보를 결제 서버로 전송하는 단계;Transmitting the determined payment amount and payment information to a payment server;
    상기 결제 서버에서 상기 결제 금액 및 상기 결제 정보에 기초하여 결제를 수행하고, 결제 완료된 거래 내역을 상기 결제 서버로부터 수신하는 단계; Making a payment based on the payment amount and the payment information at the payment server, and receiving the payment transaction details from the payment server;
    상기 거래 내역을 상기 통신 서버에 상기 제1 통신 프로토콜로 통신하여 전달하는 단계; 및Communicating the transaction details to the communication server through the first communication protocol; And
    상기 거래 내역을 상기 충전기에 상기 제2 통신 프로토콜로 통신하여 전달하는 단계;Communicating the transaction details to the charger through the second communication protocol;
    를 더 포함하는 전기 자동차 충전방법.Electric vehicle charging method further comprising.
  17. 제12 항에 있어서,The method of claim 12,
    전력을 생산 또는/및 공급하고 자체 송전, 변전 및 배전 설비를 갖춘 적어도 하나의 전력 사업자를 포함하는 전력망으로부터 생산된 전력을 충전기로 공급하는 단계를 더 포함하고,Producing or / or supplying power and supplying power generated from a power grid including at least one utility with its own power transmission, substation and distribution facility to a charger,
    상기 전력망은 상기 충전기 관리 서버와 연결되어, 상기 충전기 관리 서버에 지능형 전력망(smart grid)을 지원하는 전기 자동차 충전방법.The electric power grid is connected to the charger management server, the electric vehicle charging method for supporting the intelligent grid (smart grid) to the charger management server.
  18. 제17 항에 있어서,The method of claim 17,
    상기 전력망은 상기 충전기 관리 서버에 전력 가격, 전력 수요 현황, 전력 계통 정보와 같은 전력 정보를 공급하고,The power grid supplies power information such as power price, power demand status, and power system information to the charger management server.
    상기 충전기 관리 서버는 상기 충전기에 상기 전력 정보를 전송하고, 상기 충전기의 정보를 상기 전력망에 전송하는 전기 자동차 충전방법.The charger management server transmits the power information to the charger, and the electric vehicle charging method for transmitting the information of the charger to the power grid.
  19. 제12 항에 있어서,The method of claim 12,
    상기 충전기의 정보는,Information of the charger,
    상기 충전기의 종류 구분을 위한 머신 타입 정보, 상기 충전기가 설치된 충전소 ID 정보 또는 상기 충전기의 물리적인 장비 번호 정보를 포함하는 전기 자동차 충전방법.Electric vehicle charging method comprising machine type information for sorting the type of charger, charging station ID information installed the charger or physical equipment number information of the charger.
  20. 제 19항에 있어서,The method of claim 19,
    상기 머신 타입에는,In the machine type,
    전체 장비, 급속 충전기, 완속 충전기, 비접촉식 충전기, 이륜차용 완속 충전기 또는 이륜차용 급속 충전기를 포함하는 전기 자동차 충전 방법.A method of charging an electric vehicle, which includes an entire equipment, a quick charger, a slow charger, a contactless charger, a slow charger for a motorcycle or a quick charger for a motorcycle.
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