KR102317756B1 - Sequential Electric Vehicle Charging System - Google Patents

Abstract

The present invention relates to a sequential electric vehicle charging system, more specifically, the sequential electric vehicle charging system which prepares a plurality of ports for an electric vehicle charger, assigns a charging order to an electric vehicle connected with the plurality of ports to charge the vehicle, and sequentially executes charging of the electric vehicle according to the assigned order. The charging system comprises: a plurality of charger units; a plurality of ports; a switching unit; an input/output panel; a controller unit; and a control server.

Description

Sequential Electric Vehicle Charging System

The present invention relates to a sequential electric vehicle charging system, and more particularly, by providing a plurality of ports in an electric vehicle charger, and assigning charging sequence numbers to vehicles connected to a plurality of ports to be charged electric vehicles sequentially according to the given order It relates to a sequential electric vehicle charging system that allows charging of the vehicle to be performed.

Recently, the spread of electric vehicles is increasing due to environmental problems. Due to climate change such as global warming, interest in electric vehicles as an alternative to reducing carbon dioxide emissions is increasing, and related technologies are being actively developed.

On the other hand, in the case of fast charging or slow charging, the existing electric vehicle charger has one charging port for each charger, so that only one charger can be charged one by one. Therefore, when charging an electric vehicle in a complex such as an apartment, owners of vehicles requiring charging cannot proceed with charging when the waiting person in front is charging, and only after the previous user completes all charging There was a problem of having to recognize and charge one's own vehicle.

In addition, while securing sufficient charging infrastructure is essential for the smooth dissemination of electric vehicles, it is very difficult to build a number of charging stations with uniform power capacity in a certain area. In general, in the case of a fast charger, it takes 15 to 30 minutes with a supply capacity of 50 kW, and in the case of a slow charger, charging for 5 to 6 hours with a supply capacity of 3 to 7 kW is required. In this way, a large amount of power is consumed to charge an electric vehicle, and in the case of an electric vehicle charger installed in a complex such as an apartment, the electric power used for charging the electric vehicle and the electric power used for other electric appliances and facilities within the maximum available electric energy set within the complex Because of this distribution, when a large number of people charge an electric vehicle, power safety problems such as exceeding the amount of available power occur.

In order to solve such a problem, it is necessary to expand power facilities for constructing power infrastructure, but this is difficult to realize due to problems such as a high cost burden and a shortage of manpower. In order to solve this problem, it is possible to charge electric vehicles by supplying power more efficiently based on the maximum power consumption while improving user convenience by solving the problem of electric vehicle chargers having a single port that can only charge one unit at a time. There was a need for technology.

The present invention provides a sequential electric vehicle charging system that includes a plurality of ports in an electric vehicle charger, and provides a charging sequence number to a vehicle connected to a plurality of ports for charging an electric vehicle to sequentially charge the electric vehicle according to the assigned order aim to do

In order to solve the above problems, the present invention provides a sequential electric vehicle charging system, comprising: a charger for supplying electric power to charge electric vehicles; a plurality of ports connected to the vehicle and capable of supplying electricity to the vehicle; A plurality of power supply lines for supplying the power drawn in from the charger to the plurality of ports, and a plurality of switches capable of individually turning on or off the supply of power to each of the plurality of power supply lines, and the plurality of power supply lines. A switching unit including a switch controller for controlling the switch of; an input/output panel capable of receiving information from or providing information to the user, and receiving information about the user's charging request; and connected to the switching unit and the input/output panel, determining a charging sequence for a plurality of vehicles based on the information on the charging request, and controlling the switching unit based on the charging sequence, so that the plurality of vehicles are It provides a sequential electric vehicle charging system, including; a controller unit for charging each according to the charging sequence.

In an embodiment of the present invention, the input/output panel may receive user information according to the input of the user's identification card, and charge determined based on the charging sequence for a plurality of vehicles derived by the controller unit. Information on the charging sequence of the requested user is displayed, and charging guide information including the charging start time of the corresponding vehicle in which the charging sequence of the plurality of vehicles and the charging progress state of the connected vehicle are taken into consideration may be displayed.

In an embodiment of the present invention, the sequential electric vehicle charging system further includes a control server, wherein the control server receives power usage information according to the amount of power used by all participating households in a preset district complex, and the sequential deriving a total amount of available charging power that can be used for charging a vehicle based on a maximum amount of maximum available power that can be used within a preset area in which an electric vehicle charging system is installed and the power usage information; deriving an amount of individual chargeable power that can be supplied to each of the plurality of chargers connected to the control server based on the total amount of available chargeable power; and supplying power to be used for charging the vehicle through the charger unit based on the individual charging available power amount.

In an embodiment of the present invention, the individual chargeable power amount may be equally distributed to each of the plurality of chargers connected to the control server based on the total available chargeable power amount.

In an embodiment of the present invention, based on the total amount of available charging power, it may be distributed differently according to a preset criterion to each of the plurality of chargers connected to the control server.

In an embodiment of the present invention, the control server is configured to include a plurality of charger units when the amount of electric power required for charging of all vehicles connected to the plurality of ports of the sequential electric vehicle charging system is greater than the total amount of available electric power for charging. The charging speed may be controlled based on the charging progress state of the vehicles connected to the , and the charging rate may be decreased as the charging progress rate of the vehicles connected to the charger unit increases.

In an embodiment of the present invention, the sequential electric vehicle charging system may further include a connector unit that can be connected to another previously installed electric vehicle charging system, and the connector unit may be connected to a plurality of ports of the sequential electric vehicle charging system. .

According to an embodiment of the present invention, since electric vehicle charging time is distributed, power facilities such as transformers and power distribution facilities are efficiently used, so that an efficient charging system can be utilized by utilizing the existing power infrastructure without the need to rebuild the entire power infrastructure. can provide

According to an embodiment of the present invention, it is possible to maximize the total power supply for a plurality of electric vehicles that have requested charging and to provide an effect of providing a fair charging opportunity between users of electric vehicles.

According to an embodiment of the present invention, charging of a plurality of chargers based on the amount of power supplied per unit time according to the charging method of the electric vehicle that has requested charging from the charger, the amount of electric power required until fully charged for the electric vehicle, and the accumulated electric power supplied to the electric vehicle It is possible to determine the priority and supply power to the electric vehicle through the selected charger for each unit time.

According to an embodiment of the present invention, since electricity is supplied to a vehicle selected according to the charging sequence at a unit time, only electricity supply capability is required, so the construction cost of an electric vehicle charging station can be reduced, and the electric vehicle charging infrastructure can be efficiently implemented It can have an expansive effect.

1 schematically shows a conventional electric vehicle charging system and a sequential electric vehicle charging system according to an embodiment of the present invention.
2 schematically shows an internal configuration of an electric vehicle charger according to an embodiment of the present invention.
3 exemplarily shows a screen of an input/output panel of a sequential electric vehicle charging system according to an embodiment of the present invention.
4 schematically shows the overall system form of the sequential electric vehicle charging system according to an embodiment of the present invention.
5 schematically shows the execution steps of the control server 1600 according to an embodiment of the present invention.
6 is a view for explaining a step of deriving an individual charge available power amount according to an embodiment of the present invention.
7 is a view for explaining a step of deriving an individual chargeable power amount according to an embodiment of the present invention.
8 is a view for explaining a step of deriving an individual chargeable power amount according to an embodiment of the present invention.
9 schematically illustrates a graph for explaining a charging rate according to a charging progress rate of a vehicle according to an embodiment of the present invention.
10 exemplarily shows a graph of the amount of power used in the sequential electric vehicle charging system according to an embodiment of the present invention.
11 schematically illustrates an operation of a sequential electric vehicle charging system according to an embodiment of the present invention.
12 schematically illustrates a sequential electric vehicle charging system according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Various embodiments are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In this specification, various descriptions are presented to provide an understanding of the present invention. However, it is apparent that these embodiments may be practiced without these specific descriptions. In other instances, well-known structures and devices are provided in block diagram form in order to facilitate describing the embodiments.

As used herein, the terms “component,” “module,” “system,” “part,” and the like refer to a computer-related entity, hardware, firmware, software, a combination of software and hardware, or execution of software. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, a thread of execution, a program, and/or a computer. For example, both an application running on a computing device and the computing device may be a component. One or more components may reside within a processor and/or thread of execution, and a component may be localized within one computer, or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored therein. The components may contain, for example, a signal having one or more data packets (eg, data from one component interacting with another component in a local system, a distributed system and/or data via a network such as the Internet with another system via a signal). ) may communicate via local and/or remote processes.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. should be understood as not

Also, terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. have the same meaning as Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

1 schematically shows an electric vehicle charging system according to an embodiment of the present invention.

Specifically, Fig. 1 (a) schematically shows a conventional electric vehicle charging system, and Fig. 1 (b) schematically shows an electric vehicle charging system according to an embodiment of the present invention. As shown in (a) of FIG. 1 , the existing electric vehicle charging systems are implemented to connect and charge only one vehicle to the electric vehicle charger 1000 . When charging the vehicle connected to the charger, other standby vehicles simply wait until the charging of the vehicle being charged is completed, and when charging is completed, the vehicle is charged in the port 1200 of the electric vehicle charger 1000 is disconnected, and another vehicle to be charged is connected to the corresponding port 1200 to perform charging. In this case, there is an inconvenience that charging can be performed only when the user of the trailing charging vehicle recognizes whether the preceding charging vehicle has been fully charged. On the other hand, in the electric vehicle charging system according to an embodiment of the present invention, as shown in FIG. 1B , the electric vehicle charger 1000 includes a plurality of ports 1200 , and the plurality of vehicles to be charged Even when the vehicle is being charged, it can be connected to any one port 1200 of the plurality of ports 1200 of the electric vehicle charger 1000 . In such a configuration, since several vehicles can be connected to the electric vehicle charger 1000, the vehicle can be connected to the electric vehicle charger 1000 regardless of whether the pre-charging vehicle has been fully charged, and the prior conventional electric vehicle charger 1000 can solve the problems of As described above, in one embodiment of the present invention, the electric vehicle charger 1000 is provided with a plurality of ports 1200 so that a plurality of vehicles can be connected for charging, and charging sequence numbers of the plurality of vehicles that have requested charging , so that each vehicle can be sequentially charged according to the determined charging sequence.

2 schematically shows the overall system form of a sequential electric vehicle charging system according to an embodiment of the present invention, and FIG. 3 illustrates a screen of an input/output panel 1400 of a sequential electric vehicle charging system according to an embodiment of the present invention shown as hostile.

As shown in FIG. 2 , a sequential electric vehicle charging system according to an embodiment of the present invention includes a charger unit 1100 ; a plurality of ports 1200; a switching unit 1300; input/output panel 1400; and a controller unit 1500 .

The charger unit may supply power to charge the electric vehicle, and the power supplied through the charger unit 1100 may be supplied to each of the connected vehicles through the plurality of ports 1200 . The electric vehicle charging system according to an embodiment of the present invention can connect a plurality of vehicles by having a plurality of ports 1200 in the charger, and users do not need to wait to connect the vehicle, according to the user's charging request. Guide information is provided, and the user can connect the vehicle to any one of the plurality of ports 1200 according to the charging guide information.

The switching unit 1300 is configured to individually turn on or off the supply of power to a plurality of power supply lines for supplying power received from the charger to the plurality of ports 1200 , and to each of the plurality of power supply lines. It includes a plurality of switches capable of doing so, and a switch controller for controlling the plurality of switches. The electric vehicle charger 1000 according to an embodiment of the present invention may be configured to individually turn on/off the supply of power supply line power through a plurality of switches connected to each of a plurality of ports 1200 to which a plurality of vehicles are connected. do. The plurality of switches may be controlled through a switch controller. The switch controller may be controlled according to the charging sequence of the plurality of vehicles determined by the controller 1500 to be described later. The switch of the port 1200 to which the vehicle corresponding to the charging order is connected is turned on, and the switches of the other vehicles except for the vehicle corresponding to the charging order may be turned off.

The input/output panel 1400 may receive information from or provide information to the user, and may receive information about the user's charging request. Through the input/output panel 1400, the user inputs the user's login information (eg, ID, password, etc.) etc. can be entered. When user information is input, the user may connect his/her electric vehicle to any one port 1200 of the plurality of ports 1200 of the electric vehicle charger 1000 according to the guidance displayed on the input/output panel 1400 . As shown in FIG. 3 , information on the charging sequence according to the vehicles plugged into the plurality of ports 1200 , charging including the charging start time of the corresponding vehicle in consideration of the charging progress state of the vehicle currently being charged Guide information is displayed. In this way, the user may perform a charging request by inputting user information through the input/output panel 1400 , and may receive vehicle charging guide information. Preferably, the charging guide information includes the amount of power supplied to each electric vehicle charger 1000 according to the operation of the control server 1600 and the charging start time and expected charging completion time of the corresponding vehicle in consideration of the charging sequence of each connected vehicle. and charging time. In addition, the user can select or input the amount of charge the user wants through the input/output panel and set it, and even if the vehicle connected to the port is not fully charged, charging can be terminated according to the user's input.

The controller unit 1500 is connected to the switching unit 1300 and the input/output panel 1400, and determines the charging sequence for a plurality of vehicles based on the information on the charging request, and in the charging sequence Based on the control of the switching unit 1300, a plurality of vehicles can be respectively charged according to the charging sequence.

Meanwhile, the sequential electric vehicle charging system according to an embodiment of the present invention may further include a display module that displays charging progress states of a plurality of ports. The display module includes one or more LED modules, and the LED module of a preset color is turned on according to the charging progress state including one or more of completion, progress, and standby for charging of the vehicle, charging progress of each port status can be displayed. The information on the charging progress state may be provided through an input/output panel or more intuitively through a display module of each port. As described above, in the present invention, including the display module, since the charging progress of each port can be intuitively recognized even if the driver of the vehicle does not get off the driver's seat, the effect of conveniently selecting a charging port for charging one's own vehicle can perform

As described above, the electric vehicle charging system according to an embodiment of the present invention includes a plurality of ports 1200 in the electric vehicle charger 1000 so that a plurality of vehicles can be connected, and the charging sequence of the connected vehicles is determined. By giving and charging, the user can connect the vehicle to the electric vehicle charger 1000 regardless of whether the preceding charging vehicle is being charged, and by providing charging guide information such as the charging sequence and charging start time, the user's Convenience can be greatly improved.

4 schematically shows the overall system form of the sequential electric vehicle charging system according to an embodiment of the present invention, and FIG. 5 schematically shows the execution steps of the control server 1600 according to an embodiment of the present invention.

As shown in FIG. 4 , the sequential electric vehicle charging system according to an embodiment of the present invention further includes a control server 1600 . The control server 1600 receives power usage information according to the amount of power used by all participating households in a preset area from a server or computing device of power facilities such as a water substation, and is located in a preset area based on the received power use information. Power supplied to the plurality of installed electric vehicle chargers 1000 may be controlled.

Specifically, the control server 1600 performs steps S1000 to S1200 as shown in FIG. 5 .

In step S1000, the control server 1600 receives power usage information according to the amount of power used by all participating households in a preset area, and the maximum amount of available maximum power available in a preset area in which the plurality of sequential electric vehicle charging systems are installed. and a total amount of available charging power that can be used for charging the vehicle may be derived based on the power usage information. The sequential electric vehicle charging system according to an embodiment of the present invention may be installed in a space where a plurality of people who own electric vehicles require charging, and the following description will be made of an apartment as an example, but the present invention is not limited thereto. , apartment houses, commercial facilities used by a large number of people, logistics centers, corporate buildings, etc., can be installed wherever a plurality of vehicles exist and require charging of a plurality of vehicles.

In step S1100, based on the total amount of available power for charging, the amount of individual chargeable power that can be supplied to each of the plurality of chargers 1100 connected to the control server 1600 is derived. A plurality of electric vehicle chargers 1000 may be installed for each predetermined area in a complex such as an apartment, and preferably, the amount of available electric power for individual charging is connected to the control server 1600 based on the total amount of available electric power for charging. It may be equally distributed to each of the plurality of charger units 1100 . For example, when the sum of the amount of power required by each of the plurality of chargers 1100 connected to the control server 1600 is less than the total amount of available power for charging, the amount of power required for each of the chargers 1100 is When the sum of the amount of power required by each of the plurality of chargers 1100 connected to the control server 1600 is greater than the total amount of available power for charging, the maximum amount of available power is exceeded. In order to prevent this, in one embodiment of the present invention, when the sum of the amount of power required by each of the plurality of chargers 1100 is greater than the total amount of available chargeable power, the total amount of available chargeable power that can be supplied is the control server ( 1600) so as to be equally distributed to each of the plurality of chargers 1100. Preferably, the individual chargeable power amount may be distributed differently according to a preset standard to each of the plurality of charger units 1100 connected to the control server 1600 based on the total available chargeable power amount. This will be described later in the description of FIG. 6 .

In step S1200 , power to be used for charging the vehicle is supplied through the charger unit 1100 based on the amount of power available for individual charging derived in step S1100 .

On the other hand, if the control server cannot be controlled by the electric vehicle charger due to an error in the control server or communication errors between the control server and the electric vehicle charger in multiple areas, the administrator's terminal can access the electric vehicle charger and control the operation of the charger. can The manager's terminal also determines the total amount of available charging power that can be supplied, and may temporarily serve as a control server instead of controlling the operation of all electric vehicle chargers or controlling the operation of only some electric vehicle chargers.

In this way, in one embodiment of the present invention, each of the plurality of charger units 1100 connected to the control server 1600 in consideration of the charging time of the vehicle and the charging state of the vehicle based on the total amount of available charging power. By distributing the amount of power differently according to the criteria set in the , it is possible to exert the effect of efficient power use without installing additional facilities to build a power infrastructure for charging electric vehicles.

6, 7, and 8 are views for explaining the step of deriving the amount of available individual charging power according to an embodiment of the present invention, and FIG. 9 is a charging speed according to the charging progress rate of a vehicle according to an embodiment of the present invention. A graph is schematically shown to explain

As described above, the control server 1600 according to an embodiment of the present invention determines the total amount of available charging power that can be used for charging the vehicle based on power usage information according to the power usage of all participating households in a preset area. and, based on the total amount of available power for charging, an individual amount of available power for charging that can be supplied to each of the plurality of chargers 1100 connected to the control server 1600 is derived.

Specifically, FIG. 6 is a view for explaining that the total amount of available charging power is equally distributed to each of the plurality of charger units 1100 connected to the control server 1600 , and FIGS. 7 and 8 are views for controlling the total amount of available charging power It is a diagram for explaining that the plurality of charger units 1100 connected to the server 1600 are distributed differently according to preset criteria.

For example, the control server 1600, when the sum of the amount of power required by each of the plurality of charger units 1100 connected to the control server 1600 is less than the total amount of chargeable power, each charger Control to supply the amount of power required to the unit 1100, and when the sum of the amount of power required by each of the plurality of charger units 1100 connected to the control server 1600 is greater than the total amount of available charging power, the maximum available power excess power. In order to prevent this, in an embodiment of the present invention, when the sum of the amount of power required by each of the plurality of chargers 1100 is greater than the total amount of available charging power, as shown in (a) of FIG. The total amount of available charging power that can be supplied can be equally distributed to each of the plurality of chargers 1100 connected to the control server 1600 .

On the other hand, when the total amount of available power for charging is equally distributed to each charger unit 1100 in this way, the amount of power is equally distributed, but depending on the charging state of the vehicle connected to each electric vehicle charger 1000 and the number of connected vehicles, The amount of power supplied to each of the electric vehicle chargers 1000 may be used in some electric vehicle chargers 1000 and remain in some electric vehicle chargers 1000, and thus the power supplied may not be used more efficiently. For efficient power supply in such a case, in one embodiment of the present invention, the amount of individual chargeable power to be supplied to each electric vehicle charger 1000 is differently derived according to the state of charge of the vehicle connected to each electric vehicle charger 1000 . By supplying, more efficient power supply can be performed. Preferably, when the sum of the amount of power required by each of the plurality of charger units 1100 connected to the control server 1600 is greater than the total amount of available power for charging, the amount of power available for individual charging is Power may be distributed differently according to preset criteria to each of the plurality of charger units 1100 connected to the control server 1600 based on the amount of power. An example of the usage status in the complex in which three electric vehicle chargers 1000 are installed is as follows.

[Example #1 of the usage status of the electric vehicle charger 1000 in the complex]

Electric Vehicle Charger(1000)#1

Vehicles waiting for charging: 1 unit, charging progress: 80% fully charged

Electric Vehicle Charger(1000)#2

Vehicles waiting for charging: 2 units, charging progress: Vehicle 1 - fully charged, Vehicle 2 - 50% charged

Electric Vehicle Charger(1000)#3

Vehicles waiting for charging: 1 unit, charging progress: 5% fully charged

Total power available for charging: 100KW

At this time, in one embodiment of the present invention, 50KW of electric power is supplied to the charger unit 1100 of the electric vehicle charger 1000 #3 that requires the most amount of electric power to charge the vehicle, and the electric vehicle charger that requires the next largest amount of electric power It is possible to control to supply 30KW of electric power to (1000)#2 and supply 20KW of electric power to the electric vehicle charger 1000#1. Alternatively, the amount of power may be distributed differently to each of the charger units 1100 of the plurality of electric vehicle chargers 1000 according to a preset standard of the charging time of the vehicle according to the charging state.

On the other hand, as shown in (a) of FIG. 8 , when a plurality of vehicles are respectively connected to a plurality of electric vehicle chargers 1000 in the complex, and a large amount of power is required in each electric vehicle charger 1000, the connected Charging of the entire vehicle may not be desirable. In order to solve such a problem, in one embodiment of the present invention, the control server 1600 requires each of the plurality of chargers 1100 connected to the control server 1600 rather than the total amount of available charging power. When the sum of the electric power is greater, the charging amount of the vehicle serving as the switching standard may be reset by controlling the switching unit 1300 of the connected electric vehicle charger 1000 according to a preset standard. For example, before resetting, the sequential electric vehicle charging system of the present invention performs charging of vehicle 2 after 100% charging of the vehicle in charging order 1 is completed according to the charging order, and charging of vehicle 2 is 100% After completion, charging of vehicle No. 3 can be performed, but the sum of the amount of power required by each of the plurality of chargers 1100 connected to the control server 1600 is greater than the total amount of available power for charging, and the preset standard is not met. In the case of conformity, the control server 1600 may reset the charge amount of the vehicle, which is the basis of the operation of the switching unit 1300 for turning on or off the supply of power to the port 1200, to 80%, respectively. . In the electric vehicle charging system in which the switching standard is reset as described above, after 80% charging of the vehicle in the charging sequence number 1 is completed, the switch of vehicle 1 is OFF and the switch connected to the port 1200 connected to vehicle 2 is ON. Charging of vehicle 2 may be performed, and similarly, after charging of vehicle 2 is 80% complete, charging of vehicle 3 may be performed.

In addition, in one embodiment of the present invention, in order to efficiently use the limited amount of available charging power for vehicle charging, as shown in FIG. 9 , the control server 1600 controls the number of vehicles connected to the plurality of electric vehicle chargers 1000 . The charging speed of each electric vehicle charger 1000 may be controlled based on the charging amount. For example, when the electric vehicle charger 1000 in which the charging of the connected vehicles is completed 90% in the complex and the electric vehicle charger 1000 in which the charging of the connected vehicles is 50% are operating, the electric vehicle charger in which the 90% charging is completed The charging speed of 1000 is decreased according to a preset standard, and the charging speed of the electric vehicle charger 1000, which is 50% charged, is increased according to the preset standard, so that power can be supplied at a faster speed from a vehicle requiring more charging. It can also be used to perform charging. Preferably, when the amount of electric power required for charging all the vehicles connected to the plurality of ports 1200 of the sequential electric vehicle charging system is greater than the total amount of available electric power for charging, the plurality of chargers 1100 are connected to each other. The charging rate is controlled based on the charging progress state of the vehicles, and the charging rate is decreased as the charging progress rate of the vehicles connected to the charger unit 1100 increases.

In this way, in one embodiment of the present invention, each of the plurality of charger units 1100 connected to the control server 1600 in consideration of the charging time of the vehicle and the charging state of the vehicle based on the total amount of available charging power. The switching standard of the switching unit 1300 for turning on/off the supply of power when the amount of power is distributed differently according to a standard set in By resetting and charging, all vehicles connected to the electric vehicle charger 1000 can be efficiently charged based on the maximum available power.

10 exemplarily shows a graph of the amount of power used in the sequential electric vehicle charging system according to an embodiment of the present invention.

As described above, in the sequential electric vehicle charging system according to an embodiment of the present invention, each of the plurality of charger units 1100 connected to the control server 1600 is distributed differently according to a preset criterion based on the total amount of available charging power. do. 10 shows a graph comparing the amount of power used over time of the conventional electric vehicle charging system (conventional method) and the amount of power used over time (improved method) of the sequential electric vehicle charging system according to an embodiment of the present invention. As shown in FIG. 10 , in the case of a conventional electric vehicle charging system, a range exceeding the maximum available electric power for reasons such as an increase in the number of users of the electric vehicle charger 1000 at a specific time (between 18 and 24 in the graph of FIG. 10 ) of power consumption can be seen. On the other hand, in the case of the sequential electric vehicle charging system according to an embodiment of the present invention, the vehicles connected to each electric vehicle charger 1000 are sequentially charged according to the charging order, and the total charge to be used for charging based on the maximum available electric power is charged. Since the amount of power to be supplied to each connected charger unit 1100 is adjusted by deriving the amount of available power, the amount of power used by the electric vehicle charging system does not exceed the maximum amount of power available in a preset area, such as an apartment complex, and limited charging available It is possible to perform charging of the connected electric vehicle within the amount of electricity. In this way, in one embodiment of the present invention, each of the plurality of charger units 1100 connected to the control server 1600 in consideration of the charging time of the vehicle and the charging state of the vehicle based on the total amount of available charging power. By distributing the amount of power differently according to the criteria set in the , it is possible to exert the effect of efficient power use without installing additional facilities to build a power infrastructure for charging electric vehicles.

11 schematically illustrates an operation of a sequential electric vehicle charging system according to an embodiment of the present invention.

The sequential electric vehicle charging system according to an embodiment of the present invention may further include a notification sending server. 11, the controller unit 1500 of the electric vehicle charger 1000 can communicate with the notification sending server, and the charging sequence determined according to the operation of the controller unit 1500, the charging start time, the expected Charging guide information including at least one of a charging end time and a charging progress state may be transmitted to the user's terminal. The user's terminal may be implemented as a computer or portable terminal capable of accessing a server or another terminal through a network. Here, the computer includes, for example, a laptop, a desktop, and a laptop equipped with a web browser (WEB Browser), and the portable terminal is, for example, a wireless communication device that ensures portability and mobility. It may include all kinds of handheld-based wireless communication devices such as smartphones and tablet PCs. When the notification sending server receives the charging guide information from the controller unit 1500, it transmits the charging guide information of the user's vehicle through a text message such as SMS to the user's terminal, or the vehicle through a push notification using a dedicated application. of charging information can be transmitted. In addition, vehicle charging guide information may be provided through a social network service (SNS) linked to the user's terminal. Information on the charging sequence provided through the input/output panel 1400, the charging start time considering the charging progress status of the vehicles connected to the electric vehicle charger 1000, the expected charging end time, and the charging guide including the charging progress status of the connected user's vehicle The information may be provided through the user's terminal. After the charging is completed, charging guide information including the charging end time for which the vehicle is charged, the amount of charging power consumed for charging, and charging rate information according to the amount of power used may be provided to the input/output panel or the user's terminal.

As described above, in one embodiment of the present invention, information on the charging state of the vehicle connected to the electric vehicle charger 1000 is transmitted to the user's terminal through SMS or a push notification through a dedicated application, thereby charging the vehicle in real time. It can have the effect of providing a state to the user.

12 schematically illustrates a sequential electric vehicle charging system according to another embodiment of the present invention.

In another embodiment of the present invention, in order to easily use the configuration of the present invention in other previously installed electric vehicle charging systems, a plurality of ports 1200 connected to the vehicle to supply electricity to the vehicle; A plurality of power supply lines for supplying the power drawn in from the charger to the plurality of ports, and a plurality of switches capable of individually turning on or off the supply of power to each of the plurality of power supply lines, and the plurality of power supply lines. A switching unit 1300 including a switch controller for controlling the switch of the; An electric vehicle charger including a connector unit 1600 that can be connected to another previously installed electric vehicle charging system may be configured. The connector unit 1600 is connected to a plurality of ports 1200 of the sequential electric vehicle charging system. As shown in FIG. 12 , the connector unit 1600 is connected to a plurality of ports 1200 of the sequential electric vehicle charging system of the present invention, and is connected to ports of another electric vehicle charging system installed in advance through the connector unit 1600. , it is possible to implement the sequential electric vehicle charging system of the present invention having a plurality of ports 1200 even in an electric vehicle charging system in which only one existing vehicle can be charged. In addition to the electric vehicle charger individually billed in public facilities such as apartments, when a billing system is not required for charging in-house vehicles in public and private companies, replacement of the existing electric vehicle charger is unnecessary, and in one embodiment of the present invention , the connector unit 1600; A sequential electric vehicle charger including a plurality of ports 1200 and a switching unit 1300 is connected to an existing electric vehicle charger equipped with only one port so that a plurality of ports can be used, thereby sequentially charging a plurality of vehicles according to the charging order In this way, it is possible to provide an electric vehicle charging system that reduces costs and improves user convenience by allowing expensive additional power facility expansion or existing chargers to be used without replacement. can perform

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA). , a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or device, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computing devices, and may be stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in a different order than the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (7)

A sequential electric vehicle charging system comprising:
a plurality of charger units supplying power to charge the electric vehicle;
a plurality of ports connected to the vehicle and capable of supplying electricity to the vehicle and connected to each of the plurality of charger units;
A plurality of power supply lines for supplying power drawn in from the charger to the plurality of ports, and a plurality of switches capable of individually turning on or off the supply of power to each of the plurality of power supply lines, and the plurality of power supply lines. A switching unit including a switch controller for controlling the switch of;
an input/output panel capable of receiving information from or providing information to the user, and receiving information about the user's charging request;
It is connected to the switching unit and the input/output panel, determines a charging sequence for a plurality of vehicles based on the information on the charging request, and controls the switching unit based on the charging sequence, so that the plurality of vehicles are charged with the charging sequence. a controller unit that allows each to be charged according to a sequence; and
including a control server;
The control server,
deriving an individual amount of available charging power that can be supplied to each of the plurality of charger units connected to the control server based on the total amount of available charging power that can be used for charging the vehicle; and
supplying power to be used for charging the vehicle through each of the charger units based on the individual amount of available power for charging;
The control server,
When the amount of electric power required for charging all vehicles connected to the plurality of ports of the sequential electric vehicle charging system is greater than the total amount of available electric power for charging,
The individual charging available power is equally distributed to each of the plurality of chargers,
Set the maximum vehicle charging amount, which is the standard for the operation of the switching unit that turns on or off the power supply to the port, to a value less than 100%,
A sequential electric vehicle charging system that controls the charging speed so that the charging progress rate of the vehicles connected to the charger increases so that the charging rate decreases.
The method according to claim 1,
The input/output panel is
In accordance with the input of the user's identification card, the user's information can be received,
Information on the charging sequence of the user who requested charging determined based on the charging sequence for the plurality of vehicles derived by the controller unit is displayed,
A sequential electric vehicle charging system for displaying charging guide information including a charging start time of the corresponding vehicle in which the charging sequence of the plurality of vehicles and the charging progress state of the connected vehicle are considered.
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