WO2013115428A1 - Système de chargeur de véhicule électrique et procédé de chargement de véhicule électrique - Google Patents

Système de chargeur de véhicule électrique et procédé de chargement de véhicule électrique 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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Ceased
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PCT/KR2012/001314
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English (en)
Korean (ko)
Inventor
이태훈
박래혁
류성한
조용찬
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LS Cable and Systems Ltd
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LS Cable and Systems Ltd
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Publication of WO2013115428A1 publication Critical patent/WO2013115428A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—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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    • B60L50/60—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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    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • 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)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Selon un mode de réalisation, la présente invention concerne un système de chargeur de véhicule électrique qui comprend : un ou plusieurs chargeurs qui fournissent de l'électricité à un véhicule électrique ; un serveur de gestion de chargeurs pour commander les opérations du chargeur et gérer les informations du chargeur ; et un serveur de communication pour communiquer avec le serveur de gestion de chargeurs par l'intermédiaire d'un premier protocole de communication et communiquer avec un ou plusieurs chargeurs par l'intermédiaire d'un second protocole de communication à l'aide d'une communication sans fil pour convertir le premier protocole de communication, de sorte à fournir un environnement de communication entre le serveur de gestion de chargeurs et les chargeurs.
PCT/KR2012/001314 2012-01-31 2012-02-21 Système de chargeur de véhicule électrique et procédé de chargement de véhicule électrique Ceased WO2013115428A1 (fr)

Applications Claiming Priority (2)

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KR10-2012-0009696 2012-01-31
KR1020120009696A KR20130088456A (ko) 2012-01-31 2012-01-31 전기 자동차 충전 시스템 및 전기 자동차 충전방법

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CN111546926A (zh) * 2020-05-25 2020-08-18 江苏科技大学 一种支持多充电协议的充电系统及其管理方法
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