KR101738447B1 - Portable Charging Device for Charging Electric Vehicle through Simplified Charging Vending Machine - Google Patents

Abstract

The present invention simplifies the bending machine-type charging facility to have only a minimum authentication and power supply / shutdown configuration, activates the portable connection device by authenticating with the charging facility and local communication through the portable connection device, , WiBro, LTE and the like through re-authentication by means of mobile communication.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a portable connection device for charging an electric vehicle through a simplified bending machine-

The present invention relates to an electric vehicle charging apparatus, in which a bending machine-type charging facility is simplified as much as possible so as to have only a configuration for minimum authentication and power supply / interruption, and a portable connection device is used, And to a portable connection device for recharging an electric vehicle capable of supplying electric power to an electric vehicle and carrying out settlement without worrying about theft or the like by re-authentication with a central management system and mobile communication such as 3G, WiBro, and LTE.

Conventionally, in order to charge a battery of an electric vehicle, various control devices for power control, calculation of electric energy, settlement, maintenance and the like are installed in a bending machine-type charging facility, The charging cable was connected to the electric vehicle and allowed to charge the battery for an allowed amount of power.

As such, the existing bending machine type charging equipment is complicated and expensive due to the complexity of the billing system, so that it is not suitable for installation and operation in a limited space of the city center. Therefore, it is difficult for anyone to charge the electric car charging business , And various control systems, charging cables, and the like are relatively expensive due to the cost of installation and maintenance.

Korean Patent Laid-Open No. 10-1999-50678 (name: auxiliary battery charging device of electric vehicle, published on 199.7.5)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a bending machine-type charging facility which is as simple as possible so as to have only a minimum authentication and power supply / And to provide a portable connection device for recharging an electric vehicle, which can supply electric power to the electric vehicle through authentication and can perform settlement without worrying about the problem.

In order to achieve the above object, according to one aspect of the present invention, there is provided a battery charger for charging an electric vehicle, A device comprising: a first charging cable for connection to a charging power supply and a second charging cable for connection to an electric vehicle; A communication unit including a wireless local area communication module and a mobile communication module; And a central management system connected to the network via the mobile communication module, wherein the mobile communication module transmits a unique identifier to the charging power supplier through the wireless local area communication module, receives an activation response from the charging power supplier through the wireless local area communication module, To request electric power through the wireless LAN module according to the authentication, and to supply electric power supplied from the charging electric power supply unit to the electric vehicle through the first charging cable and the second charging cable And a control unit.

Wherein the control unit provides a screen for inquiring a prepayment or a postpay settlement on the display unit in response to the activation response and transmits the authentication code provided by the central management system to the display unit according to the selection of the completion of the prepayment or the postpayment, Received through the mobile communication module and input for the authentication.

The central management system may transmit the authentication code directly to the control unit or may transmit the authentication code to the control unit through the mobile communication module in the mobile terminal when the central management system transmits the authentication code to the user's mobile terminal.

The prepaid payment may be made through the account information of the user, the credit card information, or the SIM information of the user mobile terminal, which is settled by the approval of the electronic payment system linked to the network.

The control unit calculates the amount of power supplied from the charging power supply to the electric vehicle from the start of charging to the end of charging and transmits the information on the amount of electric power to the registered customer and the central management system , The central management system can process the postpay settlement.

Wherein the control unit supplies the charging electric power from the charging electric power supplier to the electric vehicle from the charging start time to the charging end time, the amount of electric power required to charge the electric vehicle from the charging electric power supply, And transmits information provided on a screen of the display unit to a mobile terminal of a user linked through the mobile communication module.

The first charging cable may include a separate first communication line for communication with the charging power supply, or the second charging cable may include a separate second communication line for communication with the electric vehicle. The first communication line and the second communication line may be communication lines for standard CAN (Controller Area Network) communication.

Wherein the first charging cable includes a separate first communication line for communicating with the charging power supply or wherein the second charging cable includes a separate second communication line for communication with the electric vehicle, Wherein the control unit provides on the screen of the display unit supply availability information including supply voltage and supply current received from the charging power supply via the communication line or battery remaining amount information for receiving the second communication line from the electric vehicle, It can also be transmitted to the mobile terminal.

According to the portable connection apparatus for charging an electric vehicle according to the present invention, the bending machine type charging apparatus, that is, the charging power supply unit is simplified to have only a configuration for minimum authentication and power supply / By activating the portable connection device and re-authenticating with the central management system and mobile communication such as 3G, WiBro, LTE, etc., electric power can be supplied to the electric vehicle and the payment can be performed without worrying about theft of electric power. Instead of charging facilities, low-cost and small-sized charging facilities can be safely used, thereby improving the economical efficiency of charging service and spreading charging stations in many places, thereby improving the speed of charging facilities, which are obstacles to the supply of electric vehicles.

As a result, operators (SOHO / building owners, etc.) who install and maintain charging facilities can install profitable facilities by installing and unattended charging facilities that are similar to installing conventional vending machines instead of existing high-priced large- The telecommunication company charges and collects each charging facility, and a certain amount of commission is paid from the charging facility operator, so that the operator can avoid unnecessary administrative expenses. In addition, electric vehicle users can avoid the waste of standby time and the risk of vehicle operation due to the lack of charging facilities and maintenance failure by having self-charging connection device, and at the same time, in connection with car sharing business, It can contribute to expansion of business base.

1A and 1B are views for explaining a portable connection device for charging an electric vehicle according to an embodiment of the present invention.
2 is a view for explaining an electric vehicle charging system including a connecting device according to an embodiment of the present invention.
3 is a view for explaining the operation of the charging power supply, the connecting device, and the electric vehicle of FIG. 1 in more detail.
4 is a flowchart illustrating an operation of an electric vehicle charging system including a connecting device according to an embodiment of the present invention.
5 is a diagram for explaining display interlocking between the connection device and the user terminal of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

Particularly, the electric vehicle described below can be a passenger car, a van, a bus, a truck, a trailer, a special vehicle, etc., regardless of the size of the vehicle. In some cases, the electric vehicle, together with fossil fuel such as gas, The hybrid vehicle can be operated using the power of the hybrid vehicle.

1A and 1B are views for explaining a portable connection device for charging an electric vehicle according to an embodiment of the present invention.

1A and 1B, a portable connection device for charging an electric vehicle (refer to reference numeral 120 in FIG. 2) according to an embodiment of the present invention includes a bending machine as simplified as possible for only a minimum authentication and power supply / Type charging installation, that is, a charging cable to be connected to a charging power supply (see 110 in FIG. 2) and an electric car (see 130 in FIG. 2), respectively. The plug of the charging cable to be coupled to each socket of the charging power supply (see 110 in FIG. 2) and the electric vehicle (see 130 of FIG. 2) consists of two terminals simply to be connected to each AC or DC power line, And may further include other terminals to be connected to a terminal for CAN (Controller Area Network) communication, in addition to two terminals to be connected to respective AC or DC power lines as shown in FIG. 1B.

The portable connection device for charging an electric vehicle according to an embodiment of the present invention is configured to be convenient for the user to carry around, and a bending machine-type charging facility, that is, a charging power supply (see 110 in FIG. 2) The user can connect the electric vehicle and the charge power supply (refer to 110 in FIG. 2) to charge the battery of the electric vehicle through payment according to a predetermined policy.

2 is a view for explaining an electric vehicle charging system 100 including a portable connection device 120 for charging an electric vehicle according to an embodiment of the present invention.

Referring to FIG. 2, the electric vehicle charging system 100 according to an embodiment of the present invention includes a simplified simplified bending machine type charging facility, that is, a charging electric power supply A mobile terminal 140 of the user on the network, a central management system 150 on the network and a payment server 160 on the network.

Here, the network includes a wireless mobile communication network such as 3G (including WCDMA, GSM, WiFi), WiBro, and LTE, and a wired Internet. The charging power supply 110 or the connection device 120 includes a mobile terminal 140 Server, terminal, system, etc. necessary for the operation of the charging system 100 such as the central management system 150, the payment server 160, and the like.

In particular, the connection device 120 according to an exemplary embodiment of the present invention may communicate with the charging power supply 110 through wireless local area communication such as wireless LAN (WiFi, etc.), ZigBee, Bluetooth, or NFC And can communicate with the mobile terminal 140, the central management system 150, the payment server 160, and the like through the above-described network.

The central management system 150 manages information on the registered customer (user) and the connection device 120 in the database in order to use the charging service of the present invention, and may be a server of a communication company and performs post-payment processing can do. For example, the central management system 150 may include a user name, an address, a terminal identifier such as a phone number of the mobile terminal 140, a connection device (e.g., 120 can be managed in a database for each user. The unique identifier of the connection device 120 may be a Media Access Control (MAC) address, an Internet Protocol (IP) address, or the like, and may be updated to a power control section (111 in FIG. 3) Can operate. The prepaid payment process for using the charging service is performed in accordance with the account information of the user, credit card information, or subscriber identity module (SIM) information of the user mobile terminal 140 in cooperation with the electronic payment system such as the payment server 160 on the network So that the payment can be made.

Here, the charging power supply 110 is not necessarily connected to the central management system 150 via a network, but is connected to the central management system 150 and the network in order to simplify the charging power supply 110 and economical operation. It may not be connected through. At this time, the charging power supply 110 itself sends a MAC (Media Access Control) address of the connecting device 120, an IP address of the connecting device 120 to the power controller (111 of FIG. 3) (Internet Protocol) address and the like can be managed by the predetermined storage means.

The user's mobile terminal 140 may be a smart phone, a cellular phone, a Personal Communications Services phone (PCS phone), a synchronous / asynchronous IMT-2000 A portable or mobile terminal such as a Mobile Telecommunication-2000, a personal digital assistant (PDA), a wireless application protocol phone (WAP phone), a mobile game-station, And may include a variety of electronic devices or devices throughout the home or business community that can communicate with a notebook PC, a desktop PC, a Palm Personal Computer (PC), or other electronic device, as the case may be.

In the present invention, the bending machine type charging apparatus, that is, the charging power supply 110 is simplified as much as possible so as to have only a configuration for minimum authentication and power supply / The connection device 120 is activated by authenticating the unique identifier in the wireless local area communication with the wireless LAN 120 and the connection device 120 is re-authenticated with the central management system 150 and mobile communication such as 3G, WiBro, and LTE, And the charging service may be performed through the corresponding prepayment or postpayment. Accordingly, the charging power supply 110, which is a low-cost and small-sized charging facility, can be safely used instead of the existing high-cost and large-sized charging facility, thereby improving the economical efficiency of the charging service and spreading the installation place of the charging power supply 110 in many places, So that there is no fear of spreading the charging equipment, which is an obstacle to the spread of the automobile (130).

First, referring to FIG. 3, the operation of the charging power supply 110, the connecting device 120, and the electric vehicle 130 will be briefly described.

The charging power supply 110 includes a power control unit 111 and a communication module 112. The power control unit 111 controls supply or cutoff of AC or DC power at the request of the connection unit 120, The unique identifier (MAC address, IP address, etc.) of the user's connection device 120 registered in the management system 150 may be stored in a predetermined storage means and used for activation request of the connection device 120. [ The communication module 112 may include a wired / wireless communication module for communicating with the central management system 150 on the network, a connection device 120, and a module for wireless local area communication.

The electric vehicle 130 includes a battery 132 to be charged and may further include a battery management system (BMS) 133 for managing a charged state of the battery 132 and the like. In addition, it may include a charging circuit 131 for appropriately converting the AC or DC power supplied from the charging power supply 110 to supply it to the battery 132 as required. The charging circuit 131 may include a circuit for controlling the conversion of the AC power to the DC power or the charge speed (charge).

The connection device 120 may include a control unit 121, a display unit 130, a display unit 130, a display unit 130, a display unit 130, A communication unit 123, and a button (s) 124 for inputting various data. The function of the button (s) 124 for power request, data transmission, confirmation, etc. may be performed on the touch screen screen of the display unit 122. [ In addition, the connection unit 120 is often used outdoors due to the characteristic of charging the electric vehicle. In order to prevent a malfunction due to damage in the case of rain, the display unit 122 such as an LCD module is separated It is also possible to make it possible. For example, the connector 120 may be provided with a predetermined connector, and the display unit 122 may be attached to or detached from the corresponding connector. All the functions displayed on the display unit 122 can be displayed on the user's mobile terminal 140 as well as when the display unit 122 is disconnected, Thereby allowing the device 120 to perform an operation for the required function.

The communication unit 123 includes a module (wireless local area communication module) for the charging power supply 110 and wireless local area communication (wireless LAN (WiFi, etc.), ZigBee, Bluetooth, A central management system 150 or a payment server 160 and a module (mobile communication module) for performing wireless mobile communication such as 3G (including WCDMA, GSM, WiFi), WiBro and LTE. As described above, the charging cable (first charging cable) for connection to the charging power supply 110 and the charging cable (second charging cable) for connection to the electric vehicle 130 are connected to two strands Or a communication line for communication with a power line in a standard CAN (Controller Area Network) communication, and at the end thereof, a corresponding one of the charging power supply 110 and the electric vehicle 130 And a plug to be connected to the terminals of the connection socket (see Fig. 1B).

The control unit 121 is responsible for overall control of the components of the connection device 120 as described above. The control unit 121 can transmit the unique identifier by communicating with the charging power supply unit 110 through the wireless local area communication module of the communication unit 123 to activate the charging power supply unit 110 and receive the corresponding activation response, 123 transmits the authentication code to the central management system 150 connected to the network and requests power through the wireless local area communication module according to the authentication, Power can be supplied to the electric vehicle 130 through the first charging cable and the second charging cable.

The control unit 121 may perform the charging service as described above by prepayment or postpayment processing and may transmit status information during the progress of the charging service such as the amount of power to be charged and the remaining amount information of the battery 132 to the display unit 122 A part or all of the information displayed on the display unit 122 may be transmitted to the user's mobile terminal 140 and displayed on the screen of the mobile terminal 140 5). Not only the information displayed on the display unit 122 is displayed on the mobile terminal 140 but also the information on the mobile terminal 140 is displayed on the display unit 122. In addition, 120 to the control unit 121 of the connection device 120 so as to perform an operation corresponding to the function of the button (s) 124 for inputting various data or the function of the touch screen . For example, as described below, an input of an authentication code, a command for starting charging, and the like are transmitted to the connection device 120 remotely from the mobile terminal 140, thereby enabling the corresponding function to operate.

The operation of the electric vehicle charging system 100 including the connecting device 120 according to an embodiment of the present invention will now be described in more detail with reference to the flowchart of FIG.

The user carries the connecting device 120 while operating the electric vehicle 130 and checks the state of remaining battery power of the instrument panel of the electric vehicle 130. When the battery 132 is required to be charged, The plug of the first charging cable of the connecting device 120 is connected to the socket of the charging power supply 110 and the plug of the other charging cable is connected to the socket of the electric vehicle 130 And connects to the corresponding socket (S10, S11).

When the charging cable of the connection device 120 is connected to the charging electric power supply 110 and the electric vehicle 130 in this way, the control unit 121 of the connection device 120 is connected to the wireless local area communication module of the communication unit 123 (MAC address, IP address, etc.) to the charging power supply 110 through a wireless LAN (WiFi, etc.), Zigbee, Bluetooth or NFC scheme, (Unique identifier, etc.) of the customer (user) or the connection device 120 held by the power control unit 111 and the received unique identifier (MAC address, IP address, etc.) The authentication is performed to determine whether or not the identifiers match, and when the authentication is successful, the power control unit 111 is activated and prepares for charging (S20). At the activation of the power control unit 111, an activation response is transmitted to the control unit 121 of the connection device 120 via the wireless local area communication of the communication module 112 in order to notify that the authentication has been performed (S21).

 Accordingly, the control unit 121 of the connection device 120 receiving the activation response through the wireless local area communication module of the communication unit 123 provides a screen for inquiring the prepayment or postpayment to the display unit 122 accordingly (S30). Upon receipt and input of the authentication code provided by the central management system 150 through the mobile communication module of the communication unit 123 according to the completion of the prepayment or the selection of the postpayment, the central management system 150 (S31 to S35).

 The control unit 121 may perform the charging service by prepayment or postpayment processing and may transmit the status information such as the amount of power to be charged and the remaining amount information of the battery 132 during the charging service to the display unit 122 A part or all of the information displayed through the display unit 122 may be transmitted to the user's mobile terminal 140 while the predetermined application running on the user's mobile terminal 140 is being executed So that the information displayed on the display unit 122 of the connection device 120 may be displayed in association with the screen of the mobile terminal 140 (refer to FIG. 5).

If the user selects, for example, prepayment on the screen of the display unit 122 of the connection device 120 or the selection screen of postpay settlement on the screen of the mobile terminal 140, Prepayment can be made on the screen (S31). The prepaid payment process for use of the charging service is performed by the user on the prepaid payment processing screen, together with the prepaid payment amount required for charging, the account information of the user, the credit card information, or the Subscriber Identity Module (SIM) information of the user mobile terminal 140 And the like so that the payment can be performed through interlocking with the electronic payment system such as the payment server 160 on the network. When the prepaid payment process is completed, the payment server 160 transmits the approval or payment completion information to the connection device 120 or the mobile terminal 140, Alternatively, the mobile terminal 140 may send a message related to the completion of the settlement to the central management system 150 via the network to request the authentication code (S32). Here, when the payment is completed by transferring the money to the deposit account managed in the central management system 150, the connection device 120 or the mobile terminal 140 transmits a message related to payment completion to the central management system 150 The process may be omitted.

If the user selects the postpay settlement on the screen of the display unit 122 of the connection device 120 or the selection screen of the postpay settlement on the screen of the mobile terminal 140, The control unit 121 or the mobile terminal 140 of the device 120 can directly request the authentication code to the central management system 150 via the network at step S33.

The central management system 150, which receives a message relating to the completion of settlement in accordance with the prepayment processing or a request for the authentication code according to the choice of the postpayment, directly transmits the corresponding authentication code to the control unit 121 or The connection device 120 or the mobile terminal 140 receiving the information through the mobile communication module displays the received authentication information on the receiving screen and the user transmits the received authentication code to the mobile terminal 140 for authentication And transmits the input authentication code to the central management system 150 from the control unit 121 or the mobile terminal 140 of the connection device 120 to determine whether the authentication code is issued from the central management system 150 (S35). Accordingly, the central management system 150 performs authentication for the authentication code and transmits an authentication completion message to the connection device 120 or the mobile terminal 140 (S35). And may transmit the authentication completion message to the control unit 121 of the connection device 120 when the mobile terminal 140 receives the authentication completion message. In step S34, the central management system 150 may transmit the authentication code to the control unit 121 of the connection device 120. If necessary, the central management system 150 transmits the authentication code to the user's mobile terminal 140 The control unit 121 may transmit the authentication request to the connection device 120 through the mobile communication module of the connection device 120 and may perform the authentication request in step S35.

After the authentication of the charging power supply 110 and authentication of the central management system 150 by the central management system 150 are completed, the user presses the button 124 or the like, The control unit 121 of the connection device 120 can request power through the wireless local area communication module of the communication unit 123 at step S40. Accordingly, the charging power supply 110 receives the wireless local area communication method of the communication module 112 and the power control unit 111 starts power supply (S41) Power may be supplied to the automobile 130 to charge the battery 132 (S42).

The control unit 121 of the connection device 120 calculates the amount of power supplied from the charging power supply 110 to the electric vehicle 130 from the start of charge to the end of charging in step S44, (S45). After completion of the charging (S46), the power control unit 111 of the charging power supplier 110 notifies the completion of the charging (S47) and the power is interrupted (S48). After the completion of the charging (S46), the control unit 121 of the connection device 120 transmits the information on the charging power amount from the start of charging to the end of charging through a central management system 150 To allow the central management system 150 to process the postpay settlement (S50). The central management system 150 receiving the information on the charging power amount together with the unique identifier (MAC address, IP address, etc.) from the connection device 120 receives the billing bill corresponding to the telephone number for the customer (If operated by the carrier) or other special billing invoices.

5, the control unit 121 of the connection device 120 determines whether the amount of the prepaid payment, the amount of charge required for the prepaid payment, the amount of electric power required to be supplied from the charging electric power supply 110 to the electric vehicle 130 The total amount of power supplied from the charging power supply 110 to the electric vehicle 130 from the start of charging to the end of charging is provided on the screen of the display unit 122, The mobile terminal 140 may also transmit the information provided on the screen of the display unit 122 to the mobile terminal 140 to display the charging service process.

1B, when the charging power supply 110, the connection device 120, and the electric vehicle 130 are connected to each other by a communication line for communication of a separate CAN (Controller Area Network) included in the charging cable in addition to the power line, Supply information including the supply voltage and the supply current received from the charging power supply 110 may be displayed on the screen of the display unit 122 by the control unit 121 of the connection device 120, (140) so that the corresponding information is displayed. The battery remaining amount information received from the battery management system (BMS) 133 of the electric vehicle 130 may also be displayed on the screen of the display unit 122 by the control unit 121 of the connection device 120 And may also be transmitted to the mobile terminal 140 to provide the corresponding information to be displayed (S43).

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

The charging power supply 110,
The connecting device 120,
Electric cars (130)
The user terminal 140,
The central management system (150)
The payment server 160,

Claims (9)

1. A portable connection device for charging an electric vehicle for supplying electric power of a charging power supply to charge a battery of an electric vehicle,
A first charging cable for connection to the charging power supply and a second charging cable for connection to the electric vehicle;
A communication unit including a wireless local area communication module and a mobile communication module; And
Wherein the mobile communication module transmits a unique identifier of the portable connection device for charging the electric vehicle to the charging power supply through the wireless local area communication module and receives an activation response from the charging power supply through the wireless local area communication module, Transmits the authentication code to the central management system connected to the network through the wireless local area communication module, requests power through the wireless local area communication module according to the authentication, and transmits the power supplied by the charging power supply to the first charging cable and the second charging cable To the electric vehicle
And a second connector for connecting the first connector to the second connector. The method according to claim 1,
Wherein the control unit provides a screen for inquiring a prepayment or postpayment payment on the display unit according to the activation response,
Wherein the mobile communication module receives the authentication code provided by the central management system through the mobile communication module according to the completion of the prepayment or the selection of the postpayment, and inputs the authentication code for the authentication. 3. The method of claim 2,
The central management system directly transmits the authentication code to the control unit or transmits the authentication code to the control unit through the mobile communication module in the mobile terminal when the central management system transmits the authentication code to the user's mobile terminal. A portable connection device for charging an electric vehicle. 3. The method of claim 2,
Wherein the prepaid payment is made through account information of a user who makes payment by approval of an electronic payment system linked to a network, credit card information, or SIM information of a user mobile terminal, . 3. The method of claim 2,
Wherein the control unit calculates an amount of electric power supplied from the charging electric power supply to the electric vehicle from the start of charging to the end of charging,
And transmits the information on the amount of power to the registered customer and the central management system managing the connection device, and the central management system processes the post-payment. The method according to claim 1,
Wherein the control unit supplies the charging electric power from the charging electric power supplier to the electric vehicle from the charging start time to the charging end time, the amount of electric power required to charge the electric vehicle from the charging electric power supply, And provides information on a screen of the display unit to a mobile terminal of a user interlocked through the mobile communication module. The method according to claim 1,
Characterized in that the first charging cable comprises a separate first communication line for communication with the charging power supply or the second charging cable comprises a separate second communication line for communication with the electric vehicle Portable rechargeable connecting device. 8. The method of claim 7,
Wherein the first communication line and the second communication line are communication lines for standard CAN (Controller Area Network) communication. The method according to claim 1,
Wherein the first charging cable comprises a separate first communication line for communicating with the charging power supply or the second charging cable comprises a separate second communication line for communication with the electric vehicle,
Wherein the control unit is operable to display, on the display unit, a supply remaining amount information received from the electric vehicle via the first communication line, supplyable information including a supply voltage and a supply current received from the charging electric power supply, Wherein the portable terminal is connected to the mobile terminal.

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