KR101973502B1 - Apparatus and Management Server for Charging Electric Vehicle - Google Patents

Abstract

An electric vehicle charging device and a management server device are disclosed.
Embodiments of the present invention are directed to a charging system for an electric vehicle in which a charging function is provided to prevent charging by providing functions such as authentication, metering, monitoring, and display using wireless communication, The present invention provides a charging device and a management server device that can prevent a risk of a power failure and a fire even if a plurality of vehicles are charged at the same time.

Description

[0001] Apparatus and Management Server for Charging Electric Vehicle [0002]

An embodiment of the present invention relates to an electric vehicle charging apparatus and a management server apparatus using wireless communication.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Currently electric vehicle charging systems are operated in the form of charging system using EVSE (Electric Vehicle Station Equipment) and charging system using ICCB (In-Cable Control Box).

The charging system using EVSE is operated in such a way that the EVSE connected to the switchboard is installed at the required position by performing electric power construction. This charging system is advantageous in that the charging time can be shortened according to the EVSE capacity and the charging time is short and the charging fee for the electric car set by the electric power company is applied.

However, due to the disadvantages of expensive installation cost and limited installation site due to the purchase cost of EVSE and electric power construction cost, it is difficult to widely spread.

The charging system using the ICCB is operated by connecting the ICCB to a conventional power supply outlet which is used in the past, and it can be charged anywhere where the outlet is installed and there is no additional installation cost, This makes it possible to charge an electric car by connecting a simple charging cable that does not have an authentication function to a general commercial outlet that can be connected to the electric outlet through a socket of another person installed in the outside such as a home or a building.

Also, since the charging system using ICCB can not check and control the charge amount of each outlet, if several electric vehicles are charged at the same time, the power breaker of the distribution board in the building can cut off the power due to the overcurrent. Even if the breaker capacity is increased in order to solve the problem that the power is cut off due to the overcurrent, there is a problem that the risk of fire increases because the rated capacity of each component such as the power line is exceeded.

Embodiments of the present invention provide an electric vehicle charging system that prevents a challenge by providing functions such as authentication, metering, monitoring, and displaying by using wireless communication and confirms and controls power use of each charging device through a management server The present invention has been made in view of the above problems, and it is an object of the present invention to provide an electric vehicle charging device and a management server device capable of preventing a risk of a power cut-off and a fire even if several vehicles are charged at the same time.

According to an embodiment of the present invention, there is provided an electric vehicle charging apparatus using wireless communication, comprising: a communication module that communicates with a management server and a wireless terminal device; a charging authentication unit that acquires electric vehicle charging authentication information through a communication module; Charging information including at least one of a charging current amount and a charging power amount supplied to an automobile, a charging unit for charging at least one of a charging current request, a charging status, a charging current amount, and a charging power amount to the management server, And a power control unit for controlling the output power according to the amount of the charging current determined by the control unit to supply the charging current to the electric vehicle whose charging is completed, Thereby providing an electric vehicle charging device.

According to an embodiment of the present invention, there is provided an electric vehicle charging apparatus comprising a charging authentication unit for performing charging authentication in response to an electric vehicle charging authentication request, a communication module for performing communication with a wireless terminal device and an electric vehicle charging device, A charge current management unit for determining a maximum allowable charge current for each of the plurality of electric vehicle charging devices, and charging information including at least one of a charge current amount, a charge electric power amount, charge start information, charge progress rate information, And a charging status management unit for generating charging status information and transmitting the charging status information to the wireless terminal device through the communication module.

As described above, according to the embodiments of the present invention, it is possible to prevent a challenge by providing functions such as authentication, metering, monitoring, and display using wireless communication, and to confirm and control power use of each charging device through the management server So that it is possible to prevent a risk that a power supply is cut off and a fire is generated even if a plurality of cars are charged at the same time.

According to the embodiment of the present invention, in consideration of the charging information received from the charging device and the power capacity of the place where the charging device is installed, the management server efficiently performs charging within a safe range that can prevent the risk of power cut- Can be controlled.

According to the embodiment of the present invention, it is possible to connect a charging device to an electric device other than an electric car to use electricity for purposes other than charging an electric car, or to remove a charging device from a general commercial outlet, Can be effectively prevented.

According to the embodiment of the present invention, real-time charging information of each charging device is provided to the user and the charge place manager, thereby providing convenience and optimizing the charging environment.

According to the embodiment of the present invention, charging can be carried out by using a general commercial outlet, so that it is possible to downsize the charger and positively influence the spread of electric vehicles in that existing facilities can be utilized without building new facilities Lt; / RTI >

1 is a conceptual diagram of an electric vehicle charging system according to an embodiment of the present invention.
2 is a control conceptual diagram of an electric vehicle charging apparatus according to an embodiment of the present invention.
3 is a schematic configuration diagram of an electric vehicle charging apparatus according to an embodiment of the present invention.
4 is a diagram illustrating a current pattern for explaining a non-use prevention function of an electric vehicle charging apparatus according to an embodiment of the present invention.
FIG. 5 is a conceptual diagram of charging of an electric vehicle charging system according to an embodiment of the present invention.
6A and 6B are flowcharts illustrating an authentication process of an electric vehicle charging method according to an embodiment of the present invention.
7 is a flowchart illustrating a charge control process of an electric vehicle charging method according to an embodiment of the present invention.
8 is a schematic configuration diagram of an electric vehicle charge management server apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In explaining the present invention, '... Quot ;, " module ", and " module " refer to a unit that processes at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

1 is a conceptual diagram of an electric vehicle charging system according to an embodiment of the present invention.

Referring to FIG. 1, an electric vehicle charging system according to an embodiment of the present invention includes a power supply unit 10, an electric vehicle charging apparatus 100, an electric vehicle charging management server 30 An apparatus 40, and a base station 20.

The power supply unit 10 is, for example, a general commercial outlet having at least one connection port connected to the charging device 100 so as to supply external electric power supplied from an electric power company or building management station to the electric vehicle. The power supply unit 10 is not limited to a specific place such as a charging station, an apartment, a general house, and other buildings.

 The electric vehicle charging apparatus 100 includes an input plug 130 connected to the power supply unit 10 to receive charging power. The user can charge the electric vehicle by connecting the charging cable connecting the electric vehicle charging apparatus 100 and the electric vehicle to the electric power output unit 140. [

According to another embodiment, the power supply unit 10 may supply power to the electric vehicle charging apparatus 100 without a charging cable, an input plug 130, and a general commercial outlet according to a wireless charging scheme.

The electric vehicle charging apparatus 100 includes an antenna 110 and a charging control module 120 and performs charging by exchanging charge related information with the management server 30. [ With such a configuration, the charging apparatus 100 according to the embodiment of the present invention can more effectively prevent the electric discharge and provide a charging environment suitable for the power capacity of the building, thereby reducing the risk of power shutdown and fire. A detailed description thereof will be given later with reference to other drawings.

The management server 30 receives charging information such as a charging request, a charging amount measured at the time of charging, a charging status, etc., from the charging device 100, generates charging control information, and transmits the generated charging control information to the charging device 100. [ To manage the charging performance.

The management server 30 may also provide charging related information to the wireless terminal device 40 via the base station 20. [ Here, the wireless terminal device 40 includes not only a wireless terminal device of a user but also a wireless terminal device of a manager (e.g., building owner) in a place where the power supply part 10 is installed.

That is, the user of the charging apparatus 100 is provided with information on the charging status to provide convenience of charging, and the manager is provided with the convenience of managing the overall charging information for the plurality of charging apparatuses 100 installed in the management place .

A detailed description of the management server 30 will be given later with reference to other drawings.

The wireless terminal device 40 may be a personal computer (PC), a notebook computer, a tablet, a personal digital assistant (PDA), a portable multimedia player (PMP), a smart phone, , Navigation, and the like. Also, it may be a server terminal such as an application server and a service server.

2 is a control conceptual diagram of an electric vehicle charging apparatus according to an embodiment of the present invention.

Referring to FIG. 2, a plurality of charging devices 100-1, 100-2, 100-3, ... are connected to a plurality of power supply units 10 provided at a predetermined place, And can operate in a state connected to an existing distribution board. According to the embodiment, each charging device may be capable of communicating with other charging devices and the distribution board.

Hereinafter, an electric vehicle charging apparatus 100 according to an embodiment of the present invention will be described in detail with reference to FIG.

3 is a schematic configuration diagram of an electric vehicle charging apparatus according to an embodiment of the present invention.

The charge control module 120 of the electric vehicle charging apparatus 100 includes a communication module 210, a control unit 220, a charge authentication unit 230, a rectification module 240, a measurement unit 270, and a power control unit 280 . The charge control module 120 may further include a display unit 250 and a detachment monitoring unit 260. In FIG. 2, each of the constituent elements is represented as being independently present, but a plurality of constituent elements may be constituted by being combined into one constituent unit according to the embodiment.

The communication module 210 performs communication with the management server 30. The communication module 210 is a wireless communication module and may include, for example, a low power wide area (LPWA), an LTE-M, and the like.

The charging authentication unit 230 acquires electric vehicle charging authentication information through the communication module. The electric vehicle charging authentication information may refer to, for example, unique information (e.g., user identification information) given to a user or electric vehicle registered in advance for use of the charging apparatus. The user can initiate the authentication procedure by recognizing a local wireless device, e.g., an NFC module or a separately provided RFID module, mounted on the wireless terminal device 40 close to the charging device 100. [ In this case, the charge authentication unit 230 may be implemented as an RFID reader or an NFC reader.

The control unit 220 transmits an authentication request message including user identification information acquired through the wireless terminal device 40 to the management server 30 through the communication module 210. [ Lt; / RTI > The management server 30 confirms whether the user is an already registered user (or electric vehicle) authorized to perform charging using the user identification information, generates an authentication result message, and transmits the message to the charging device 100. The control unit 220 receives the authentication request result message from the management server 30 and starts charging. The control unit 220 may transmit the authentication result to the user's wireless terminal device 40 according to the authentication result message.

An authentication process according to another embodiment other than the authentication process described above is also possible. When the user recognizes the wireless terminal device 40 to the charge authentication section 230, the control section 220 transmits the charge device identification information to the wireless terminal device 40 through the communication module 210. Here, the charging device identification information may include a place where the corresponding charging device is installed, a position of the charging device in the installation place, state information of the charging device, and the like.

The user wireless terminal device 40 transmits an authentication request message including the received charging device identification information and user identification information to the management server 30 and the management server 30 transmits the authentication request message to the user and the charging device 100, And transmits the authentication result to the user wireless terminal device 40. [ The user can receive the authentication result from the management server 30 to the wireless terminal device 40 and start charging.

The measuring unit 270 measures at least one of a charging current amount and a charging power amount supplied to the electric vehicle. The measuring unit 270 may include an ammeter and a watt-hour meter to measure a charging current amount and a charging power amount during charging. The amount of charge current and the amount of charge electric power measured by the measurement unit 270 are transmitted to the management server 30 and can be used to generate charge control information, real-time charge state information, billing information, and the like.

The control unit 220 controls the management server 30 to perform a charging process including charging authentication request by the user, information on the charging state (e.g., charging start, charging completion, charging progress rate) And transmits information. Here, the metering amount can be periodically reported to the management server 30, and can be reported immediately when a change in the metering amount occurs.

The information on the state of charge means information for notifying the state of charge (for example, charging start, charging completion and charging progress rate, etc.) and is transmitted from the management server 30 through the application or the like to the wireless terminal device 40 Can be provided.

The management server 30 generates the maximum allowable charge current amount information for each of the plurality of charge apparatuses 100 installed in a predetermined place using the charge information and transmits the information to each charge apparatus 100. [ The maximum allowable charging current amount information may be determined in real time in consideration of the charging information received from each of the plurality of charging devices installed in a certain place and the power capacity of the corresponding location. Accordingly, even in a variable charging environment, the optimum charging current amount can be determined and provided to the charging apparatus 100.

In addition, the maximum allowable charge current amount information can be determined within a safe range in consideration of the fire risk within the rated allowable amount of each component such as the power breaker of the corresponding place.

For example, when charging completion of the existing charged vehicle or demand for new charging occurs, charging information including information on the charging information is transmitted to the management server 30, and the management server 30 transmits the charging information to the charging server The maximum available charge current amount information may be generated using the power capacity and transmitted to the corresponding charging device 100. [ Accordingly, the charging system according to the present embodiment has an effect of providing an optimized charging environment.

The control unit 220 determines the amount of charge current that can be supplied using the maximum allowable charge current amount information. The amount of charge current that can be supplied can be determined through a predetermined algorithm based on the charge information. The amount of charge current that can be supplied may be equal to the maximum allowable charge current. In other words, the management server 30 can directly determine the amount of charge current that can be supplied to the charging device 100. [

The control unit 220 according to the embodiment of the present invention includes a memory for storing various programs and data for performing charging using information received from the management server 30 and the wireless terminal device 40, ii) a microprocessor for executing and controlling the program, and the like. According to at least one embodiment, the memory may be a computer such as a random access memory (RAM), a read only memory (ROM), a flash memory, an optical disk, a magnetic disk, or a solid state disk Readable recording / storage medium. According to at least one embodiment, a microprocessor can be programmed to selectively perform one or more of the operations and functions described in the specification. In accordance with at least one embodiment, the microprocessor may be implemented as hardware, such as an application specific integrated circuit (ASIC), in whole or in part in a particular configuration.

The power control unit 280 controls the output power according to the amount of the charging current determined by the control unit 220 to supply the charging current to the electric vehicle whose charging is completed.

The power control unit 280 according to an embodiment of the present invention includes a connection detection unit (not shown) to detect whether the charging cable is connected to the power output unit 140 and to transmit the chargeable state information to the control unit 220 Lt; / RTI >

The control unit 220 can determine whether charging is possible based on the chargeable state information and the maximum allowable charge current amount information. For example, when the charging cable is not connected to the power output unit 140 and the amount of allowable charging current remains, the controller 220 determines that charging is possible and a 'chargeable' indication is displayed on the display unit 250 . On the other hand, when the charging cable is connected to the power output unit 140 or the allowable charging current amount is less than or equal to the predetermined threshold value, the control unit 220 determines that the charging can not be performed, .

The rechargeable / non-chargeable information generated by the controller 220 may be transmitted to the management server 30 through the communication module 210. The management server 30 may transmit the rechargeable / 40). ≪ / RTI > Accordingly, the user can easily search for the rechargeable charging device, and the manager can easily grasp the overall charging status.

The control unit 220 according to the embodiment of the present invention calculates the amount of charge starting current measured by the measuring unit 270 (that is, the starting value of the output AC current of the charging device) when the charging cable is connected to the power output unit 140 It is possible to predict at least one of the estimated charging start time and the estimated charging completion time using the predicted remaining charge amount. The calculated charging start scheduled time and charging completion scheduled time can be transmitted to the management server 30 and the wireless terminal device 40. [

If the charging cable can not be charged because the charging cable is not connected to the power output unit 140 but the allowable charging current amount is less than the threshold value, the user once connects the charging cable to the power output unit 140, In the case of waiting until the charging is possible.

For example, the control unit 220 predicts the internal resistance value of the electric vehicle battery from the charging start current amount and the voltage of the rectifier built in the electric vehicle, and calculates the electric resistance value of the electric vehicle battery from the charging current amount supplied to the electric vehicle, The remaining charge amount of the automobile battery can be predicted. The DC voltage value of the internal battery of the electric vehicle depends on the charged amount, and the amount of the charging start current of the charging device (that is, the starting value of the output AC current) depends on the DC voltage value of the battery inside the electric vehicle. Therefore, it is possible to estimate the charge remaining amount of the battery by using the correlation between the two values.

Electricity charges for charging electric vehicles are set lower than electric charges for households in order to spread electric vehicles. Accordingly, there is a fear that the electric vehicle charging device may be abused to use other electric devices at a low price.

In order to solve such a concern, the controller 220 according to the embodiment of the present invention analyzes the pattern of the charging current measured by the measuring unit 270 and is connected to electric devices other than the electric vehicle, And to control the communication module 210 to transmit the use occurrence information to the management server 30 for another purpose. An example will be described with reference to FIG.

4 is a diagram illustrating a current pattern for explaining a non-use prevention function of an electric vehicle charging apparatus according to an embodiment of the present invention. Specifically, FIG. 4 shows a pattern of consumption current amount for each electric device with respect to time.

For example, A is a pattern of charge current in an electric car, B is a current consumption pattern of a heater, and C is a current consumption pattern of an air conditioner. The consumption current pattern for each electric device can be extracted from previously collected information and stored in the memory of the charging device 100 according to the present embodiment or can be provided from an external server.

The control unit 220 analyzes the pattern of the charging current measured by the measuring unit 270 and compares it with the current consumption pattern of the electric appliance stored in the storage unit or provided by the external server, It is possible to transmit an alarm to the management server 30 that the use for the purposes other than the car charging has occurred. Accordingly, the administrator or the power company may be provided with an out-of-target alarm to shut off the power to the charging apparatus 100 or to charge a proper fee.

Since the charging apparatus 100 according to the embodiment of the present invention operates by being connected to the power supply unit 10, that is, the general commercial outlet, the illegal user can remove the charging apparatus 100 of the present embodiment and directly connect the charging cable to the power supply unit 10).

In order to solve such a problem, the detachment monitoring unit 260 according to the embodiment of the present invention senses the voltage of the input plug 130 of the charging device 100 and detects the voltage of the input plug 130, (10).

When the detachment monitoring unit 260 detects the detachment of the input plug 130, the control unit 220 controls the communication module 210 to transmit the detachment information including the identification number and the position information of the charging device to the management server 30 Can be controlled. The management server 30 can transmit an alarm to the wireless terminal device 40 of the pre-registered administrator in the form of text / data or the like.

In the case where the power supply is disconnected from the power supply unit 10, the rectifier module 240 may be provided with a battery of a predetermined capacity to supply power for transmitting a predetermined time alarm.

FIG. 5 is a conceptual diagram of charging of an electric vehicle charging system according to an embodiment of the present invention.

According to the embodiment of the present invention, the charging information for each charging apparatus 100 is transmitted to the management server 30 and the management server 30 uses the charging information for each charging apparatus 100, The charging information for each user can be provided. The electric power company 50 imposes an electric charge corresponding to the charging amount for a specific user who has performed charging using the charging device 100 installed at a certain place based on charging information for each user, The owner of the building) may charge an electricity bill for the amount of electricity used, excluding the electric vehicle charge.

Hereinafter, an electric vehicle charging method according to an embodiment of the present invention will be described with reference to FIGS. 6A, 6B, and 7. FIG.

The method for charging an electric vehicle according to an embodiment of the present invention includes a step in which the charging device 100 acquires user identification information from the wireless terminal device 40 and performs charging authentication. Here, the user identification information may refer to unique information given to a user or an electric vehicle registered in advance for using the charging device. For example, the user can start the authentication procedure by recognizing the NFC module mounted on the wireless terminal device 40 or the separately provided RFID module close to the charging device 100. [ In this case, the charge authentication unit 230 may be implemented as an RFID reader or an NFC reader.

6A and 6B are flowcharts illustrating an authentication process of an electric vehicle charging method according to an embodiment of the present invention.

Referring to FIG. 6A, the wireless terminal device 40 transmits an authentication request message including user identification information to the charging device 100 (S610). The charging device 100 transmits an authentication request message to the management server 30 (S620). The management server 30 confirms the user identification information in step S630 and transmits the authentication result message to the charging device 100 in step S640 and the charging device 100 transmits the authentication result to the wireless terminal device 40 S650).

When the authentication is completed, the user can start charging using the charging device 100 (S660). As described above, the charging device 100 transmits the charging information to the management server 30, and the management server 30 generates charging control information based on the charging information and transmits the information to the charging device 100 to perform charging (S670). A detailed description of the charging execution process (S670) will be described later.

The process of performing the charging authentication according to another embodiment of the present invention may be as shown in FIG. 6B.

Referring to FIG. 6B, the user wireless terminal device 40 requests the charging device 100 for the charging device identification information (ID) (S6100). Here, the charging device identification information may include a place where the corresponding charging device is installed, a position of the charging device in the installation place, state information of the charging device, and the like.

Accordingly, the charging device 100 transmits the charging device identification information to the wireless terminal device 40 (S6200). The wireless terminal device 40 transmits an authentication request message including the user identification information and the charging device identification information to the management server 30 (S6300). The management server 30 confirms the user identification information and the charging device identification information and transmits the authentication result to the wireless terminal device 40 (S6500). When the authentication is completed, the user can start charging using the charging device 100 (S6600).

Hereinafter, the charging execution process (S670) will be described in detail.

In step S670, the charging device 100 i) detects the connection status of the charging cable and requests the management server 30 to confirm whether or not the charging cable can be recharged. When the charging server 100 determines that the charging server 100 Determining a maximum allowable charging current amount and responding to the charging apparatus 100, ii) determining the amount of charge current that the charging apparatus 100 can supply based on the maximum allowable charging current amount when the charging authentication is completed, and iii) (Iii) a step in which the charging device 100 supplies the amount of the charging current that can be supplied through the charging cable to the electric vehicle to perform charging, iv) the charging current amount and the charging power amount measured in the charging performing process, And charging information including at least one of the charging completion information and the charging completion information to the management server 30.

Here, the charge progress rate information may be calculated in the control unit 220 of the charging apparatus 100 as described above, including information on a scheduled start time of charging and a scheduled completion time of charging.

The charging apparatus 100 determines the amount of charge current that can be supplied based on the maximum allowable charge current amount, wherein the amount of charge current that can be supplied can be determined through a predetermined algorithm based on the charge information. The amount of charge current that can be supplied may be equal to the maximum allowable charge current. In other words, the management server 30 can directly determine the amount of charge current that can be supplied to the charging device 100. [

When the charging is completed (S680), the charging device 100 reports the completion of the charging to the management server 30 and can transmit charging information (e.g., total charging power amount, user identification information, charging device identification information, etc.). The charging information may be provided to the wireless terminal device 40 of the user and the manager and the utility.

In an alternative embodiment, the wireless terminal device 40 may communicate with the management server 30 instead of the charging device 100 to send and receive a charging request and a charging completion report.

7 is a flowchart illustrating a charge control process of an electric vehicle charging method according to an embodiment of the present invention. Specifically, a control process in the case where two charging devices exist is illustrated.

Referring to FIG. 7, it is sensed that the charging device 1 is connected to (or connected to) the charging cable (S710), and the management server 30 can request confirmation of charging (S712). That is, a confirmation request is made as to whether or not there is an allowable charging current amount in the charging apparatus.

Accordingly, the management server 30 determines the charging current amount (or the maximum allowable charging current amount) for the charging device 1 (S714). The management server 30 transmits a response to the charging device 1 including the determined charging current amount (or the maximum allowable charging current amount) to the charging device 1 (S716). If charging is possible, the charging device 1 performs charging (S718)

When the charging device 2 detects the charging cable connection (S720) and requests the management server 30 to confirm charging of the charging device 1 (S722), the management server 30 determines whether the charging device 1 The charging current amount (or the maximum allowable charging current amount) for the charging apparatus 1 and the charging apparatus 2 can be determined in consideration of the charging information and the power capacity of the charging station (S724).

According to the charging current amount (or the maximum allowable charging current amount) determined in the process S724, the management server 30 instructs the charging device 1 to change the charging current amount (S726). In this case, since the number of charging apparatuses that have requested charging is increased, the amount of charging current allowed for each charging apparatus will be reduced. In accordance with the change instruction of the process S726, the charging device 1 changes the charge current amount (S728) and reports the change (S730).

The management server 30 transmits a response to the charging device 2 including the charging current amount (or the maximum allowable charging current amount) determined by the charging device 2 to the charging device 2 (S732). When charging of the charging device 1 is completed (S734) while the charging device 2 performs charging, the charging device 1 reports the completion of charging to the management server 30 (S736), and the management server 30 The charging current amount (or the maximum allowable charging current amount) for the charging apparatus 2 is determined (S740). In this case, since the charging of the charging device 1 is completed, the charging current amount (or the maximum allowable charging current amount) for the charging device 2 will increase.

The management server 30 issues an instruction to change the charging current amount to the charging device 2 in accordance with the determined charging current amount (or the maximum allowable charging current amount) (S742).

It is needless to say that the charging control process corresponding to FIG. 7 can be applied to two or more charging devices.

6A, 6B and 7 illustrate that the processes are sequentially executed, but the present invention is not limited thereto. 6A, 6B, and 7, or may be implemented by executing one or more processes in parallel, so that FIGS. 6A, 6B, and 7 are not limited to the time series order .

The electric vehicle charging method according to the embodiment described in Figs. 6A, 6B and 7 can be implemented by a program and recorded on a computer-readable recording medium. A program for implementing the electric vehicle charging method according to the present embodiment is recorded, and a computer-readable recording medium includes all kinds of recording devices for storing data that can be read by a computer system.

8 is a schematic configuration diagram of an electric vehicle charge management server apparatus according to an embodiment of the present invention.

The management server apparatus 30 according to the embodiment of the present invention includes a charge authentication unit 310, a communication module 320, a charge current management unit 330, and a charge state management unit 340. In FIG. 8, each constituent element is represented as being independently present, but a plurality of constituent elements may be constituted by being combined into one constituent unit according to an embodiment.

The charging authentication unit 310 performs charging authentication in response to the electric vehicle charging authentication request. The specific authentication process corresponds to that described above with respect to the charging authentication unit 230 of the charging apparatus 100 and FIGS. 6A and 6B, and therefore, description thereof will be omitted.

The communication module 320 performs communication with the wireless terminal device and the electric vehicle charging device.

The charge current management unit 330 determines the maximum allowable charge current for each of a plurality of electric vehicle charging apparatuses installed in a certain place. Specifically, the charge current management unit 330 acquires charge information from each of the plurality of electric vehicle charging apparatuses 100 installed in a predetermined place, and calculates the maximum allowable charge current amount in real time in consideration of the obtained charge information and the power capacity of the predetermined place Can be determined. The charging current management unit 330 may generate the maximum allowable charging current amount information for each of the plurality of charging apparatuses 100 and transmit the information to the charging apparatus 100.

The maximum allowable charge current can be determined within a safe range considering the fire risk within the rated allowable amount of each part such as the power breaker of the place. For example, when the existing charged vehicle is fully charged or a new charging demand is generated, the charging information including information on the charging information is transmitted from the charging device 100 to the charging current managing unit 330, And the maximum available charge current amount information by using the power capacity of a predetermined place where the charging device is installed, and transmit the maximum allowed charge current amount information to the charging device 100.

Since the charge current management unit 330 generates the maximum allowable charge current amount information based on the charge information transmitted in real time or periodically from the charge apparatus 100, the optimum charge current amount is determined even in a variable charge environment, Lt; / RTI >

The charge state management unit 340 uses the charge information including at least one of the charge current amount, the charge electric power amount, the charge start information, the charge progress rate information, and the charge completion information acquired from the plurality of electric vehicle charging apparatuses 100, . The charging status information is transmitted to the wireless terminal device 40 through the communication module 320. [ Here, the wireless terminal device 40 may include both the user and the manager's wireless terminal device in the place where the charging device is installed.

Thus, the present embodiment provides an advantage that the administrator can easily manage the charging place and the charging device, and can provide convenience to the user to easily charge the charging device in consideration of the charging status.

The foregoing description is merely illustrative of the technical idea of the present embodiment, and various modifications and changes may be made to those skilled in the art without departing from the essential characteristics of the embodiments. Therefore, the present embodiments are to be construed as illustrative rather than restrictive, and the scope of the technical idea of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

As described above, the present embodiment is applied to the field of an electric vehicle full speed charger, thereby preventing a challenge by providing functions such as authentication, metering, monitoring, and display using wireless communication, This is a useful invention that can prevent the risk of the power being cut off and the fire being generated even if several vehicles are charged at the same time by using confirmation and control.

10: power supply unit 20: base station
30: management server 40: wireless terminal device
100: electric vehicle charging device 110: antenna
120: charge control module 130: input plug
140: power output unit 210: communication module
220: control unit 230: charge authentication unit
240: commutation module 250: display part
260: desorption monitoring unit 270: measuring unit
280: Power control unit 310: Charge authentication unit
320: communication module 330: charge current management section
340: charge state management section

Claims (10)

An electric vehicle charging apparatus using wireless communication,
A communication module for communicating with the management server and the wireless terminal device;
A charging authentication unit for obtaining electric vehicle charging authentication information through the communication module;
A measuring unit for measuring at least one of a charging current amount and a charging power amount supplied to the electric vehicle;
Charging information including information on at least one of a charging authentication request, a charging status, a charging current amount, and a charging power amount to the management server, and using the maximum available charging current amount information acquired from the management server, A controller for determining a charge completion time after determining the charge completion time;
A power control unit for controlling the output power according to the amount of the charging current calculated by the control unit to supply the charging current to the electric vehicle whose charging is completed; And
And a detachment monitoring unit for detecting a voltage of an input plug of the charging device and detecting whether the input plug is disconnected from a power supply unit supplied with commercial power,
Wherein,
And controls the communication module to transmit declassification information including the identification number and the positional information of the charging device to the management server when the detachment monitoring unit detects the drop of the input plug, And notifies the management server of the occurrence of the use of the electric vehicle for another purpose other than charging the electric vehicle. The method according to claim 1,
The maximum allowable charge current amount information may include:
Wherein the management server is determined in real time based on the charging information received from each of the plurality of electric vehicle charging apparatuses installed in a predetermined place and the electric power capacity of the predetermined location. The method according to claim 1,
Wherein,
And transmits an authentication request message including user identification information acquired through the wireless terminal device to the management server through the communication module, and receives an authentication request result message from the management server. The method according to claim 1,
Wherein the control unit transmits the charging device identification information to the wireless terminal device through the communication module,
Wherein the wireless terminal device transmits an authentication request message including user identification information and the charging device identification information to the management server and receives an authentication result from the management server. The method according to claim 1,
Wherein the power control unit transmits chargeable state information to the control unit,
Wherein the control unit determines whether charging is possible based on the chargeable state information and the maximum allowable charge current amount information, predicts a charge remaining amount of the electric automobile battery using the charge start current amount measured by the measurement unit, And calculates at least one of a scheduled charging start time and a scheduled charging completion time. The method according to claim 1,
Wherein,
And controls the communication module to transmit the use occurrence information for another purpose to the management server when the occurrence of use for another purpose is detected. delete The method according to claim 1,
Wherein the control unit controls the communication module such that the detachment releasing information is transmitted to the management server when the detachment monitoring unit detects that the input plug is disconnected again from the power supply unit. A charge authentication unit for performing charge authentication of the user and the electric vehicle charging apparatus according to an electric vehicle charging authentication request;
A communication module for communicating with the wireless terminal device and the electric vehicle charging device;
A charge current managing unit for determining a maximum allowable charge current amount for each of a plurality of electric vehicle charging apparatuses installed in a predetermined place; And
Generates charge state information using charge information including at least one of a charge current amount, a charge electric power amount, charge start information, charge progress rate information, and charge completion information obtained from the plurality of electric vehicle charging apparatuses, A charge state management unit for transmitting the charge state information to the wireless terminal device,
Lt; / RTI >
Wherein the electric vehicle charging apparatus is configured to shut off power to the electric vehicle charging apparatus or to charge a proper fee upon receiving information from the electric vehicle charging apparatus for detecting occurrence of use for purposes other than charging.
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