KR102361409B1 - Electric vehicle sharing charging device and method using Home Energy Management System - Google Patents

Abstract

The present invention discloses an electric vehicle sharing charging apparatus and method capable of charging an electric vehicle (EV) in connection with a charging station of an electric vehicle (EV) provided for each home, performing charging, and paying a charging fee. According to the present invention, the steps of registering the usage pattern information of the resident in a Home Energy Management System (HEMS) provided at home, generating a charging service request from a third party, and the HEMS using the usage pattern information and determining whether to allow the charging service by accessing the , and transmitting a charging possible message or a charging impossible message to the user terminal requesting the charging service according to whether the charging service is allowed.

Description

Electric vehicle sharing charging device and method using Home Energy Management System

The present invention relates to a home energy management system, and in particular, in connection with a charging station (charging facility) of an electric vehicle (EV) provided for each home, confirming the chargeability of an electric vehicle (EV) and performing charging accordingly, and which occurs when charging It relates to an electric vehicle sharing charging device and method that enables payment of charging charges, etc.

As the demand for a low-carbon society is increasing, the optimal use of energy and measures to save energy in the demand side, especially in the household sector, are in the spotlight. In the future, in the home sector, power generation such as solar power generation, storage batteries, fuel cells, and the like, and the introduction of capacitors are expected to be promoted, and at the same time, the distribution of home appliances with communication functions is expected to progress. These facilities and devices are electrically connected to the power company's distribution system through smart meters. Through the communication function of the smart meter, information is exchanged between the appliances in the home and the power company and energy service company, so that the energy optimization in the home and the optimization of energy supply and demand can be achieved at the same time.

These social requests are being promoted through the home energy management system. Home Energy Management System (hereinafter referred to as 'HEMS') is a system that networks and automatically controls home appliances that are energy consumption sources such as electricity, gas, and hot water in the home with IT technology. It refers to a home energy management system that optimizes energy production and consumption through real-time information exchange between and consumers. In Korea, HEMS technology is mainly applied to large-scale residential complexes and apartments, and overseas, it is also being applied to general houses.

The HEMS is a small-scale distributed power supply such as digital home appliances and energy storage systems (ESS), home solar power generation, fuel cells, and charging power supply (V2H) according to the spread of electric vehicles (EV), power supply of the power grid (V2G), It is expected to develop as an element technology of smart home, such as connection with fast charger.

In particular, connection with electric vehicles such as these element technologies is urgently needed. The electric vehicle industry is on the rise thanks to environmental problems such as fine dust and air pollution and the rapid development of electric and electronic technology.

However, it is still not easy to operate an electric vehicle. Poor charging infrastructure and long charging times may be the reasons, and the reality is that popularization is not progressing rapidly due to the lack of ease of use, such as having to check not only the location of the charging station but also the available time. Nevertheless, electric vehicles are superior to internal combustion locomotives in economic feasibility, air pollution, maintenance, etc., and continuous growth is expected as charging technology continues to improve through continuous technology development. Therefore, it is said that the establishment of a charging infrastructure for electric vehicles is urgently needed.

In Korea, charging stations for electric vehicles are still being installed in designated public places. For example, it is installed and operated in places where users can easily access, apartments, or public parking lots. However, in order to charge the vehicle, the user has to go to such a charging place, and there are not many charging facilities compared to an electric vehicle, so even if you go to a charging station, it will still be inconvenient considering the waiting time.

In recent years, electric vehicle charging stations have been installed in each household in addition to public charging stations in order to alleviate these inconveniences to some extent. In addition, depending on the type of housing, electric vehicle chargers that can be charged can be installed even when there is no space to install a charging station because there is no installation space such as a parking garage or parking lot.

However, although electric vehicle chargers (or charging stations) are being distributed, electric vehicle chargers are not yet available to anyone other than residents.

It is an object of the present invention to provide an electric vehicle sharing charging system apparatus and method using a home energy management system that enables efficient use of electric vehicle charging facilities provided at a predetermined installation site by grafting HEMS.

Another object of the present invention is to provide an electric vehicle sharing charging system device and method using a home energy management system that enables the owner of an electric vehicle charging facility to generate revenue by allowing the electric vehicle to be charged according to charging.

The present invention for achieving the above object is a HEMS connected to a renewable energy power generation module and grid power and supplying any one power using a HEMS gateway; an EV charging device receiving renewable energy or system power from the HEMS and charging a battery of an EV vehicle; a server interworking with the HEMS and managing a charging service of the EV vehicle; And it provides an electric vehicle sharing charging system device using a home energy management system including a user terminal requesting the charging service.

The EV charging device is a charging station or charging facility provided in a single home or house.

The EV charging device may include: an ESS for storing power supplied through the renewable energy source or grid power; an EV charger to which a charging cable is connected to charge the EV vehicle; a smart meter that checks the amount of charge charged according to the discharge amount of the battery of the EV vehicle and the charge service and transmits it to the server; a user authentication unit for authenticating a user who has requested the charging service; an input unit for inputting a desired charging time or charging amount according to the charging service; a fee payment unit for paying a fee generated according to the charging time or charging amount; And it is configured to include a vehicle detection sensor for detecting the presence of a vehicle in the EC charging facility.

When the request for the charging service is generated, the server transmits information about charging available EV charging stations to the corresponding user terminal.

When the charging service request is generated, the server transmits only EV charging station information that can be charged based on the sensing information of the vehicle detection sensor to the user terminal.

The server transmits, to one or more user terminals, information about charging stations that can be charged within the distance information based on the sensing information of the vehicle detection sensor in response to distance information on which the EV vehicle requesting the charging service can drive. .

The server receives a request for a charging service generated from the user terminal at a reserved time when a predetermined time has elapsed according to the remaining battery capacity of the EV vehicle, and transmits information about a charging station that can be charged to the user terminal.

According to another aspect of the present invention, the charging service is requested from the user terminal of the EV vehicle driver; accessing, by the server receiving the charging service request, information on EV charging stations that can be charged through HEMS; transmitting, by the server, location information of the one or more EV charging station information accessed to the user terminal; and charging the EV vehicle at one of the EV charging stations.

The request for the charging service may occur in real time or at a reserved time after a predetermined time has elapsed based on the remaining battery level of the EV vehicle.

According to this embodiment, the method further includes selectively storing a renewable energy source or system power in an ESS provided in the EV charging station according to a control operation of the HEMS, wherein the HEMS first supplies the renewable energy source. , when the power generated by the renewable energy source is insufficient, the system power is controlled to be supplied.

In the step of accessing the EV charging station information, the server provides information about a charging station that can be charged according to the sensing information of a vehicle detection sensor provided at the EV charging station, and information about the distance that the EV vehicle requesting the charging service can drive. Charging station information and EV charging station information having a charging power capable of charging the EV vehicle are accessed.

before charging of the EV vehicle, displaying a charging rate according to a charging time or charging amount input by a user; The method further includes the step of paying the charging fee by using a card, a user terminal, or the user's personal information, and the charging process is performed when the charging fee is normally paid.

Charging of the EV vehicle may be performed until the charging power charged in the ESS reaches a predetermined level, and when the charging is completed, a charging rate may be displayed so that payment can be made.

According to another feature of the present invention, the step of operating a call button provided in the EV charging station; transmitting a guide message to the user terminal that first requested the charging service according to the operation of the call button; There is provided a shared charging method for an electric vehicle using a home energy management system, which includes performing charging of an EV vehicle that has moved to a corresponding EV charging station according to the guidance message.

According to another aspect of the present invention, there is provided a home energy management system (Home Energy Management System: HEMS) provided in the home, the step of registering the use pattern information of the resident; generating a charging service request from a third party; determining, by the HEMS, whether a charging service is permitted by accessing the usage pattern information; Providing an electric vehicle charging method using a home energy management system comprising the step of transmitting a charging possible message or a charging impossible message to the user terminal requesting the charging service according to whether the charging service is allowed or not do.

In addition, the usage pattern information may refer to a return time of a resident after going out or information about a time when the resident mainly charges his/her EV vehicle.

According to the apparatus and method of the electric vehicle sharing charging system using the home energy system of the present invention as described above, in a state in which an EV charging facility is provided in each home or house, users who have subscribed to the charging service pay their own EV vehicle charging rates. It can be charged by paying, so it is easier to charge an EV vehicle than to charge it at a charging facility provided in a public place. As such, it is possible to solve the problem caused by the lack of EV charging stations in the prior art.

Further, according to the present invention, in that the EV vehicle driver can be informed in a timely manner of an EV charging facility that can be charged according to the remaining battery level of the vehicle, problems that may occur due to the failure to charge the EV vehicle battery can be solved.

The establishment of such a charging infrastructure and provision of charging services may actually be helpful in mass dissemination of EV vehicles.

1 is an overall configuration diagram of an electric vehicle sharing charging system device according to a preferred embodiment of the present invention;
Figure 2 is a detailed configuration diagram of the HEMS and EV charging device of Figure 1;
3 is a flowchart illustrating a power storage process in an energy storage unit according to an embodiment of the present invention;
4 is a flowchart illustrating a charging service request process of an EV vehicle according to an embodiment of the present invention;
5 is an exemplary view of a screen guiding the user's current location and the location of the EV charging station in response to the charging service request of FIG.
6 is a flowchart of a process in which the server transmits charging station information that can be charged to a user terminal in response to a request for charging service of an EV vehicle according to the present invention;
7 is a flowchart illustrating a charging fee payment process according to battery charging in response to a request for charging service of an EV vehicle according to the present invention;
8 is a flowchart illustrating another embodiment of the charging fee payment process of FIG.
9 is a flowchart illustrating a process of performing a charging service according to a resident's usage pattern during the charging service process of the present invention;

Objects and effects of the present invention, and technical configurations for achieving them will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. In the description of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

And the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. Only the present embodiments are provided so that the disclosure of the present invention is complete, and to fully inform those of ordinary skill in the art to which the present invention belongs, the scope of the invention, the present invention is defined by the scope of the claims will only be Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings.

1 is an overall configuration diagram 10 of an electric vehicle management system device using a home energy management system according to an embodiment of the present invention, and FIG. 2 is a detailed configuration diagram of a HEMS.

As shown here, at least two or more HEMS (Home Energy Management System) 100 is provided. The HEMS 100 is a system installed in each home, and can manage energy supply, consumption, storage, and the like, of energy in the home.

The HEMS 100 may include a controller 110 , a storage unit 120 , and a HEMS gateway 130 . The controller 110 serves to control the overall operation of the HEMS, and the storage unit 120 stores various information related to the management of electric vehicles (EV vehicles), as well as the usage patterns of residents who provide EV charging facilities, etc. information is also stored. As an example of a usage pattern, there may be time information for a resident to return to his/her home or a time period for charging his/her vehicle.

The HEMS gateway 130 may receive sensing information detected by various sensors or may receive information about power from a device related to power management installed in the home. The sensors may be, for example, lighting devices 20 in the home, motion sensors 22 , and open/close state sensors 24 of doors and windows. In addition, the device related to the power management may refer to power information of the renewable energy generation module 20 and the grid power source 40 . In other words, it is because the home can generate electricity by using renewable energy such as a solar power module and can receive electricity through the grid. Such electric power may be used as a charging power source for an EV vehicle or a hybrid vehicle (hereinafter collectively referred to as an EV vehicle) described below. Although the solar power generation module is described as an example of the renewable energy in the above, it is natural that various power generation modules such as a wind power generation module or a small hydro power generation module may be adopted and utilized.

In addition, the HEMS gateway 130 controls the charging of the EV vehicle through the EV charging device (also referred to as an EV charging station or an EV charging facility) 200 , and a server 300 that provides various information related to charging of the EV vehicle below. ) also serves to transmit

An EV charging device 200 is connected to the HEMS 100 . The EV charging device 200 may be installed in each home, and thus it will be said to correspond to each HEMS 100 . In this embodiment, the EV charging device 200 may provide an environment in which, in addition to vehicles owned by the household, an unspecified number of EV vehicles subscribed to the charging service can also be charged. Here, the charging service refers to a service in which an unspecified number of people can charge an EV vehicle using an EV charger provided at a charging facility in another person's home or house.

The EV charging device 200 is provided with an energy storage unit for storing power supplied through the above-described renewable energy source or power system. The energy storage unit may be configured using a plurality of batteries or storage cells, but in an embodiment, the energy storage unit means an Energy Storage System (ESS) 210 . The ESS 210 is composed of a battery, a Battery Management System, a Power Conversion System (PCS), and an Energy Management System (EMS). This is because the electricity produced by the power plant can be supplied to the power grid from time to time or high-output electricity required for charging stations for electric vehicles can be usefully supplied. Above all, it can be said that it is suitable for charging the EV vehicle of this embodiment because it is optimized to store renewable energy such as solar power and wind power that is difficult to generate power at a desired time in advance and use it at a required time.

In addition, the power conversion system (PCS) of the ESS 210 includes a plurality of inverters and converters to convert and store various renewable energy sources and system power. That is, the ESS 210 includes a power conversion device, and of course, such a power conversion system may be configured within the ESS 210 or configured separately.

The EV charging device 200 includes an EV charger 220 . The EV charger 220 may include various types of chargers capable of performing a slow charging method and a fast charging method according to an AC/DC charging method. In addition, a charging method capable of charging an electric vehicle by a wireless method is also possible. In general, the charging cable 222 is connected to the EV charger 220 .

In the present invention, since an unspecified number of people use the EV charger 220 provided in another person's EV charging facility 200 to charge, it is necessary to charge a charging fee according to the charging time and amount of charge. In order to charge a charging charge, the EV charging device 200 further includes an authentication unit 232 for user authentication, and a smart meter 230 for measuring the amount of charging power used. The smart meter 230 includes a communication module (not shown) for transmitting information on power usage to the gateway 130, so that the authentication unit 232 is provided together with the smart meter 230 as shown in FIG. 2 . It is preferable to be This is because, if not, a separate communication module for transmitting user information to the gateway 130 may be further required. In addition, the smart meter 230 displays the charging state information of the EV vehicle. Accordingly, the user can check the charging state of the EV vehicle while charging.

For this reason, it is preferable that the smart meter 230 is provided with the input unit 234 and the bill payment unit 236 together. This is because, with user authentication, you can immediately check the usage fee (charging fee), or enter the charging time or amount of charge for charging the battery, and then pay the fee. In addition to the method using cash payment and card payment, various payment methods for payment using a smart phone or the like may be provided in the bill payment unit 236 .

In addition, the EV charging device 200 includes a vehicle detection sensor 240 for detecting the presence of a vehicle. The reason for detecting the presence of a vehicle is to provide information about charging stations that can be charged. In the case of charging an EV vehicle, it is possible to check in advance whether there is a vehicle in the EV charging facility using the usage information of the EV charger 220 , but the charging place where the EV charger 220 is installed may be used as a parking space. In this case, the EV charger 220 is in an unused state, but the vehicle is parked at the charging place, so it cannot be charged.

A server 300 that interworks with the HEMS 100 and manages a charging service of an EV vehicle is provided. The server 300 uses the information transmitted by the HEMS 100 and the location information of the user terminal 400 to use the charging place available to the user who has subscribed to the charging service, the arrival time to the charging place, and the usage pattern of the charging station. Real-time management of information such as available time (reservation availability) and parking availability.

And the server 300 provides various software necessary for the HEMS 100 and the user terminal 400 to operate the charging service. The software may refer to, for example, a program or application that can check information such as a charging place, arrival time at the current location, available time, and parking availability so that the charging service can be used, and every time it is updated The server 300 provides real-time information to the user terminal 400 .

Next, a series of service processes for charging an EV vehicle using the HEMS 100 will be described.

3 is a flowchart illustrating a power storage process in an energy storage unit according to an embodiment of the present invention.

The HEMS 100 can basically detect the user's intention based on the sensing information received from the various sensors 20, 22, 24, and according to the detection result, various electrical and electronic appliances provided in the home. It is possible to control a device or a lighting device (S100).

The HEMS 100 stores the power generated by the renewable energy generation module 30 and the power supplied by the grid power 40 in the ESS 210 while performing these basic operations. Here, the supply power allows the renewable energy generation module 30 or the grid power 40 to be selectively supplied. Therefore, a switch (not shown) is installed in the power supply path, and the HEMS gateway 130 operates the switch as needed to supply power through any one supply path.

The supply path is basically connected to the renewable energy generation module 30 (S110), and in this state, the HEMS gateway 130 checks the amount of power generated by the renewable energy generation module 30 (S120).

As a result of the check (S130), if the generated power is sufficient, the generated renewable energy is supplied to the ESS 210 to be charged (S140). If the power generation of the renewable energy generation module 30 is insufficient or under the condition that power cannot be generated, the HEMS gateway 130 blocks the supply path of the renewable energy and connects the supply path of the grid power 40 Control. Then, the system power is supplied to the ESS 210 to be charged (S160).

The HEMS 100 may manage power of the ESS 210 . This is because the ESS 210 can monitor the temperature, current , voltage, charge amount, etc. of the battery, etc., and provides a function of transmitting the monitored value to the HEMS gateway 130 . Accordingly, the HEMS 100 may supply and cut off charging power according to the amount of charging of the ESS 210 (S150). Therefore, it will always be possible to control to optimize the operating environment of the ESS (210).

The ESS 210 is provided for each HEMS 100 , and thus the server 300 receives information on the amount of charge of the ESS 210 from each HEMS 100 and manages it. Therefore, the server 300 can check the state of charge of the ESS 210 in the EV charging station 200, and according to the charging state of the EV vehicle of the user requesting the charging service, can give you information. For example, if the discharge state of the EV vehicle of the service request user is 80% and charging power of at least 50% or more is required in consideration of the mileage, the server 300 provides information on EV charging stations with a charging amount of at least 50% to the user. can inform you Accordingly, it is possible to prevent a problem in which charging cannot be performed due to insufficient charging power during charging.

4 is a flowchart illustrating a charging service request process of an EV vehicle according to an embodiment of the present invention. In order to use the charging service, it is necessary to provide a condition that an unspecified number of people can use the EV charging device 200 installed in each home. It is necessary to subscribe to the charging service for each household. And the server 300 manages the information of the EV charging device 200 of the household subscribed to the charging service. Alternatively, information of the EV charging device 200 may be stored and managed in the HEMS 100 .

When subscribing to the charging service, the HEMS gateway 130 of each household transmits, from the EV charging device 200, the presence of a vehicle in the EV charging facility, and the charging information of the ESS 210 to the server 300, and the server ( 300) manages the information on the plurality of EV charging devices 200 into a DB (S200).

A charging service request is generated by the EV vehicle driver who has subscribed to the charging service (S210). The charging service may be requested in real time or at a reserved time through the user terminal 400 . That is, when the driver needs to charge the battery of the EV vehicle immediately due to the discharge of the battery of his/her vehicle, the driver may request a service or request the service after a certain period of time has elapsed from the current point in consideration of the mileage or the discharge rate of the battery.

The server 300 receives a request message for a charging service from the user terminal 400 . The request message includes location information of the user terminal 400 . Therefore, it is possible for the server 300 to quickly check the current location of the user who requested the service only by receiving the service request message.

The server 300 transmits information of an EV charging device (ie, an EV charging station or a charging facility) 200 that can be charged according to a charging service request to the user terminal 400 ( S220 ). In this case, the information on the EV charging stations that can be charged can be processed and transmitted according to the following procedure.

The server 300 recognizes a case in which a vehicle is parked at the EV charging station 200 or the vehicle is currently being charged through the sensing information of the vehicle detection sensor 240 , and information on these EV charging devices 200 is excluded. In addition, since the server 300 knows the amount of charge of the ESS 210 , the ESS 210 does not secure an appropriate level of charge or the ESS 210 having a charge less than the amount requested by the user is installed EV charging device. (200) is also excluded. That is, only information about the EV charging device that can be substantially charged and the EV charging device 200 that can be charged to a desired amount of charge or more is processed.

Then, based on the information of the rechargeable EV charging device 200 , information on EV charging devices in an order close to the current user's location is processed. Here, proximity means that the user may be based on the current location of the EV vehicle or the driving direction of the EV vehicle. For example, referring to FIG. 5 , if the user's current location is A, the nearest EV charging station is B, but if it is assumed that the driving direction of the EV vehicle is route D, charging station C is more suitable based on the driving route. It will become an EV charging station.

The server 300 accesses information on optimal charging stations that can be charged according to this process, and then transmits the EV charging station information to the user terminal 400 . And if the user terminal 400 supports the navigation function, the server 300 maps the information of the EV charging station to the map information displayed on the display unit by the user terminal 400 and displays the location information of the EV charging station. send. If the user terminal 400 does not support the navigation function, map information on which the location information of the EV charging station is displayed may be provided so that the user terminal can display it (S230).

The user terminal 400 may be a smart phone or a navigation device. Therefore, it is natural that an application capable of requesting a charging service should be installed in the smart phone or navigation device. And if the smart phone requests the charging service, the smart phone may display the location information of the EV charging station transmitted by the server 300 on the map information currently being displayed on the screen. Similarly, when the navigation device requests a charging service, the server 300 transmits the location information of the EV charging station to the navigation device to be displayed. In addition, when the smart phone and the navigation device are used separately, the navigation device may receive charging station location information transmitted by the server 300 from the smart phone and display the screen.

According to this process, the driver can check the information of the EV charging device 200 displayed on the screen, and can sufficiently charge the battery before the battery is completely discharged ( S240 ).

6 is a flowchart of a process in which the server transmits charging station information that can be charged to the user terminal 400 in response to a request for a charging service of an EV vehicle according to the present invention. If you can charge your own EV vehicle immediately or at a desired time according to the service request of FIG. 4 , there is no problem.

However, even if the user requested a charging service, there may be cases where there are currently no EV charging stations that can be charged. In other words, if the vehicle is parked at an EV charging station within the user's reach, or if the EV vehicle is currently being charged, the EV vehicle cannot be charged. And if the vehicle cannot continue driving without recharging it, the user has to wait for an available EV charging station to appear.

As shown in FIG. 6 , assuming that there is no EV charging station currently available for charging (S300), the user applies for a charging service based on his or her current location (S310). Since EV vehicles display distance information that can be driven according to the current battery charge, when applying for a charging service, the user also transmits distance information that can be driven based on this distance information.

The server 300 accesses information on EV charging stations located within a driving distance of the user based on the distance information and the user's location (S320). Then, with reference to the detection information of the vehicle detection sensor 240 transmitted through each HEMS gateway 130, it is checked whether a chargeable EV charging station is generated (S330).

As a result of the check, when information about a charging station that can be charged is recognized (S340), the server 300 transmits a related guide message to the user terminal 400 that has applied for the charging service (S350). The guide message may include location information and map information of at least one EV charging station. At this time, there may be a plurality of users who have requested a charging service within the same area, and in this case, the server 300 will transmit information about EV charging stations that can be charged sequentially according to the service request order to each user terminal 400 . In this case, it is preferable to control the server 300 by dispersing it so that a large number of vehicles do not flock to any one EV charging station.

The user who has applied for the charging service checks the guide message through his or her user terminal 400 . Then, the user moves to the EV charging station guided by the guide message to perform the vehicle charging service (S360). Since the prompt contains information about one or more EV charging stations, the user can go to any desired location and charge the battery.

7 is a flowchart illustrating a charging fee payment process according to battery charging in response to a request for charging service of an EV vehicle according to the present invention.

The payment of the charging charge must be carried out according to the charging time and the amount of charge.

As shown in FIG. 7 , the user parks the EV vehicle at an EV charging station that can be charged ( S400 ). By vehicle parking, the vehicle detection sensor 240 detects a vehicle, and the detected information is transmitted to the server 300 through the HEMS gateway 130 . Therefore, the EV charging station is displayed as a current vehicle charging state. This means that when someone else's service request is made, the server 300 does not provide information on the EV charging station. Alternatively, a guide message such as “You must wait a predetermined time until charging is completed” is transmitted to the user terminal 400 that has requested the service.

The user operates the input unit 234 of the smart meter 230 to input charging time or charging amount information (S410). Then, the smart meter 230 displays the charging fee to be paid based on the input information (S420), and the user pays the charging fee (S430). The charging charge payment may be performed using various media using a card and a user terminal. And when the charging charge payment is made normally, the EV charging device 200 informs that charging can be performed using the EV charger 220 .

The user may perform charging by connecting the charger cable 222 to a charging terminal (not shown) of the EV vehicle according to the guidance (S440). This charging process proceeds until the charging time or charging amount input by the user is reached.

8 is a flowchart illustrating another embodiment of the charging fee payment process of FIG. 7 . In addition to paying the charging fee using various means as shown in FIG. 7, payment may be made through user authentication.

As described above, the smart meter 230 is provided with the authentication unit 232 . The authenticator 232 is a medium for user authentication, and may include biometric technologies such as fingerprint, vein, iris, and face recognition. Users who want to use the charging service must register their authentication information in advance. The authentication information registration may use a user terminal or a series of computer devices other than the smart meter 230 , and the authentication process may be performed while connected to the server 300 .

When the authentication process is completed, the user's personal authentication information is registered in the server 300 (S500). Alternatively, it is also possible to directly register the HEMS 100 in which the EV charging device 200 that is frequently used is installed.

In a state in which such user personal information is registered, when the user operates the input unit 234 of the smart meter 230 to input charging time or charging amount information (S510), the smart meter 230 performs payment based on the input information. The charging rate is displayed (S520).

The user may pay a charging fee to be paid according to the charging time or charging amount information input into the smart meter 230 using his/her personal information (S530). For example, it will be in a state where it can be charged only by fingerprint recognition. Of course, this process does not actually pay the charging fee. Thereafter, the server 300 or the corresponding HEMS 100 charges the user for a charging fee and makes the payment.

When the user pays normally through personal information, the EV charging device 200 notifies that it can be charged using the EV charger 220, and the user then connects the charger cable 222 to the charging of the EV vehicle according to the guidance. It is connected to the terminal to perform charging (S540).

On the other hand, the above-described charging fee may be divided and provided at a certain rate according to a contract with an operator providing a charging service and a provider of an EV charging station that provides a charging facility (ie, a home or home owner). Alternatively, if the service requesting user directly uses the predetermined EV charging device 200 to charge without being linked to the server 300, the cost incurred at this time is not generated by the operating entity, so the charging facility provider distributes more revenue will be able to receive

As described above, the present invention is configured to charge a vehicle after a user requests a charging service using a user terminal. However, charging according to other methods is also possible. For example, when a call button is provided at an EV charging station, and a user who has completed charging the EV vehicle at the EV charging station operates the call button, a guide message may be transmitted to a user terminal requesting a charging service. In this case, if there are two or more user terminals requesting the charging service, they are performed in order. And the user who confirms the guidance message moves the EV vehicle to the EV charging station and then charges it.

In this case, a notification message may be sent from multiple EV charging stations, and the user can charge by moving to the nearest EV charging station or an EV charging station of his/her choice.

9 is a flowchart illustrating a process of performing a charging service according to a resident's usage pattern during the charging service process according to the present invention. The present invention allows residents to easily charge their EV vehicles by providing their EV charging facilities to a third party. will be. This is because residents who provide EV charging facilities must be unable to charge or park their vehicles because of other people.

As shown in FIG. 9 , information on the use pattern (life pattern) of the resident is registered in advance in the HEMS 100 ( S600 ). The usage pattern referred to herein is information on the charging time of the EV vehicle on a daily/weekly/monthly basis in relation to the charging of the EV vehicle, information on the return time after going out, and the like, and may be information that a resident uses the EV charging device 200 . In addition, such information registration may be directly registered by the resident, but may be registered by checking the charging time in the EV charging device 200 .

While the resident's usage pattern is registered in the HEMS 100, a charging service request is generated from a third party (S610).

Then, the HEMS 100 accesses the resident's usage pattern (S620), and determines whether charging of the EV vehicle is permitted in response to the charging service request (S630). That is, determining whether a third party can charge the EV vehicle before the resident returns to the EV charging facility. The judgment will be made inclusive of the time the third party moves from the current location to the EV charging facility and the actual charging time compared to the return time of the resident.

As a result of the charging determination result (S640), if it is determined that charging is possible, the HEMS 100 transmits a message informing that the charging service can be performed to the user terminal of a third party that has requested the service (S650), whereas charging is impossible In this case, a charging impossible guidance message is transmitted to the user terminal (S660). Accordingly, the resident becomes a condition to be able to charge or park at his or her EV charging facility at the time of return (S670).

Although described with reference to the illustrated embodiments of the present invention as described above, these are merely exemplary, and those of ordinary skill in the art to which the present invention pertains can use various functions without departing from the spirit and scope of the present invention. It will be apparent that modifications, variations and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: HEMS
130 : HEMS Gateway
200: EV charging device
210: ESS
220: EV charger
230: smart meter
232: authentication unit
234: input unit
236: bill payment unit
240: vehicle detection sensor
300 : server
400: user terminal

Claims (2)

to the Home Energy Management System (HEMS) provided in the home. Registering the usage pattern information of the resident including the charging time of the EV vehicle on a daily/weekly/monthly basis, the resident's return time after going out, and the resident's charging time for his/her EV vehicle;
generating a charging service request from a third party;
determining, by the HEMS, whether to allow the charging service, based on the time the requestor of the charging service moves from the current location to the EV charging device and the actual charging time by comparing the HEMS to the usage pattern information and the return time of the resident;
and transmitting a chargeable message or a chargeable message to the user terminal requesting the charging service according to whether the charging service is permitted or not. According to claim 1, wherein the usage pattern information,
An electric vehicle sharing charging method in which the EV charging device checks the charging time of the EV vehicle and registers it in the HEMS.

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