KR20230113429A - Fast charger sharing system and fast charging control method - Google Patents

Abstract

The present invention relates to a system for charging a plurality of electric vehicles by sharing a quick charger and a method for controlling rapid charging in the system, comprising: a quick charger that converts AC power into DC charging power and supplies it; A plurality of dispensers connected in parallel to the power output terminal of the quick charger and selectively supplying DC charging power supplied from the quick charger to the battery of the electric vehicle connected to the charging connector;
One master dispenser constituting the plurality of dispensers is charged so that each of the plurality of dispensers including itself is cyclically charged in a time-division manner according to the state of charge of the battery of the electric vehicle acquired from each slave dispenser through the first communication channel. permit,
Each of the one or more slave dispensers constituting the plurality of dispensers is characterized in that the battery of the electric vehicle is charged and controlled by connecting a supply path of the DC charging power during the charging permitted time.

Description

Fast charger sharing system and fast charging control method

The present invention relates to an electric vehicle charging system, and more particularly, to a system in which a plurality of electric vehicles share a rapid charger and a method for controlling rapid charging in the system.

Since the distance that an electric car can drive with a battery charge is shorter than that of a regular car, the battery must be recharged frequently. Since the time required to charge the battery of an electric vehicle is longer than the time required to refuel a general vehicle, it is common to charge the battery during parking time of the electric vehicle.

As the supply of electric vehicles increases, charging systems (EVSE; Electiric Vehicle Charging Equipment) that can charge electric vehicles are installed and operated in public facilities, apartment parking lots, mart parking lots, etc. A charging system capable of charging an electric vehicle can be classified into a slow charger and a rapid charger.

In order to shorten the charging time, it is efficient to use a quick charger, but since it is an expensive device, there are not many of them. If there are many drivers who want to use the quick charger, it is inconvenient to wait.

Republic of Korea Patent Publication No. 10-2021-0095756 Republic of Korea Patent Registration No. 10-2095260

Therefore, the present invention is an invention invented to solve the above-mentioned problems, and the main object of the present invention is to provide a quick charger sharing system in which a plurality of electric cars can share and charge one quick charger,

Furthermore, another object of the present invention is to provide a rapid charging control method capable of efficiently controlling rapid charging within a short time in a system in which a plurality of electric vehicles can share and charge one rapid charger.

Another object of the present invention is to provide a rapid charger sharing system and a rapid charging control method that can increase the charging efficiency of all vehicles by adjusting the charging time of each vehicle according to the state of charge of the batteries of the electric vehicles being charged by sharing the rapid charger. there is.

In addition, according to the present invention, it is possible to set a priority for rapid charging by giving priority to either the state of charge and the progress time of the battery of the electric vehicles being charged. Another object is to provide a fast charger sharing system that can be adjusted.

The quick charger sharing system according to an embodiment of the present invention for achieving the above object is,

A rapid charger for converting AC power into DC charging power and supplying it;

A plurality of dispensers connected in parallel to the power output terminal of the quick charger and selectively supplying DC charging power supplied from the quick charger to the battery of the electric vehicle connected to the charging connector;

One master dispenser constituting the plurality of dispensers is charged so that each of the plurality of dispensers including itself is cyclically charged in a time-division manner according to the state of charge of the battery of the electric vehicle acquired from each slave dispenser through the first communication channel. permit,

Each of the one or more slave dispensers constituting the plurality of dispensers is characterized in that the battery of the electric vehicle is charged and controlled by connecting a supply path of the DC charging power during the charging permitted time.

In the rapid charger sharing system including the above-described configuration, the master dispenser,

a first communication unit for transmitting and receiving battery-related information and charging permission commands for each of the slave dispensers;

a second communication unit for transmitting and receiving battery-related information with a battery management system of an electric vehicle connected to its own charging connector;

a third communication unit for transmitting information to the quick charger;

a switching unit located in a power supply path between the power output terminal of the quick charger and the charging connector and performing a switching on/off operation;

Control the switching unit to charge the battery of the electric vehicle connected to each dispenser in a time-division manner according to the state of charge of the battery of the electric vehicle for each dispenser in the battery-related information obtained through the first communication unit and the second communication unit, or charge each dispenser Another feature is that it includes; a control unit that transmits a permission command to the slave dispenser side.

Furthermore, in the rapid charger sharing system including the above-described configuration, each of the slave dispensers,

a fourth communication unit for transmitting and receiving battery-related information and charging permission commands for each dispenser with the master dispenser;

a fifth communication unit for transmitting and receiving battery-related information with a battery management system of an electric vehicle connected to its own charging connector;

a switching unit located in a power supply path between the power output terminal of the quick charger and the charging connector and performing a switching on/off operation;

Another feature is a slave-side controller configured to switch on the switching unit during a charging permission time according to a charging permission command for each dispenser received through the fourth communication unit.

In each rapid charger sharing system of the above-described configuration, the master dispenser first permits charging in the order of low battery state of charge of the acquired electric vehicle, or first permits charging in the order of low state of charge of the battery of the acquired electric vehicle, but charging the battery Another feature is that more charging time is allowed in descending order of status.

On the other hand, in the rapid charging control method according to another embodiment of the present invention, information is transmitted and received through a first communication channel with a rapid charger that converts AC power into DC charging power and is connected in parallel to the power output terminal of the rapid charger. A method executed in a master dispenser that transmits and receives information through a second communication channel with one or more slave dispensers that are

obtaining battery-related information from a slave dispenser connected to an electric vehicle charging connector through the second communication channel;

setting the order of dispensers to be allowed to sequentially circulate charging in a time-division manner according to the state of charge of the battery of the electric vehicle for each slave dispenser included in the battery-related information;

and transmitting a charging permission command allowing charging for a predetermined period of time to the slave dispenser side through the second communication channel, sequentially transmitting according to the set priority.

The rapid charging control method according to another deformable embodiment also transmits and receives information through a first communication channel with a rapid charger that converts AC power into DC charging power and supplies one or more of one or more devices connected in parallel to the power output terminal of the rapid charger. A rapid charging control method executed in a master dispenser that transmits and receives information with a slave dispenser through a second communication channel and transmits and receives battery-related information with a battery management system of an electric vehicle connected to its own charging connector through a third communication channel,

acquiring battery-related information of an electric vehicle connected to its own charging connector through the third communication channel;

obtaining battery-related information from a slave dispenser connected to an electric vehicle charging connector through the second communication channel;

setting the order of dispensers to be allowed to sequentially circulate charging the dispensers including the dispenser in a time-sharing manner according to the state of charge of the battery of the electric vehicle for each dispenser included in the battery-related information;

Transmits a charging permission command allowing the dispensers including themselves to be charged for a certain period of time to the slave dispenser side through the second communication channel, and sequentially transmits them according to the set priority or supplies charging power to its own charging connector. It is characterized in that it includes; supplying step.

According to the above-described means for solving the technical problem, the rapid charger sharing system according to an embodiment of the present invention has the advantage of being able to share and charge one rapid charger with a plurality of electric vehicles, and has the effect of saving the cost of installing the rapid charger. provides

In addition, the present invention charges a rapid charger by time-division sharing among a plurality of electric vehicles, but allocates charging time differentially according to the battery state of charge (SOC), thereby more quickly charging the battery of a vehicle with a low battery state of charge. It works.

1 is an exemplary configuration of a rapid charger sharing system according to an embodiment of the present invention.
2 is a diagram for explaining a supply path of charging power in FIG. 1;
3 is an exemplary block configuration diagram of a master dispenser in FIG. 1;
Figure 4 is an exemplary rapid charging control flow according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced in order to make the objects, technical solutions and advantages of the present invention clear. These embodiments are described in sufficient detail to enable a person skilled in the art to practice the present invention.

Also throughout the description and claims of the present invention, the word 'comprise' and variations thereof are not intended to exclude other technical features, additions, components or steps. Other objects, advantages and characteristics of the present invention will appear to those skilled in the art, in part from this description and in part from practice of the invention. The examples and drawings below are provided as examples and are not intended to limit the invention. Moreover, the present invention covers all possible combinations of the embodiments shown herein. It should be understood that the various embodiments of the present invention are different from each other but are not necessarily mutually exclusive. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims.

Meanwhile, in this specification, unless otherwise indicated or clearly contradicted by context, items referred to in the singular include plural unless otherwise required by the context. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

First, FIG. 1 illustrates a configuration diagram of a rapid charger sharing system according to an embodiment of the present invention, and FIG. 2 illustrates a diagram for explaining a supply path of charging power in FIG. 1 .

As shown in FIG. 1, in the rapid charger sharing system according to an embodiment of the present invention, one master dispenser 200 and one or more slave dispensers 210 and 220 share the rapid charger 100.

The quick charger 100 receives, for example, three-phase AC power of 380V and converts it into DC charging power of 250 to 500V through the AC/DC converter 110 provided therein as shown in FIG. It is supplied to the dispensers 200 , 210 , and 220 . The battery of the electric vehicle may be charged through the charging connector of the quick charger 100.

On the other hand, the quick charger sharing system according to an embodiment of the present invention is connected in parallel to the power output terminal of the quick charger 100, and the DC charging power supplied from the quick charger 100 is connected to the charging connector of the electric vehicle. It includes a plurality of dispensers (200, 210, 220) that selectively supply the battery.

One of the plurality of dispensers is a master dispenser 200, and the others operate as slave dispensers 210 and 220.

One master dispenser 200 is a plurality of dispensers 200, 210, 220 including itself according to the battery state of charge (SOC) of the electric vehicle obtained from each slave dispenser 210, 220 through the first communication channel, for example, Ethernet communication Charging is permitted so that each is sequentially cyclically charged in a time-division manner. Charging permission may be implemented through a method of transmitting a charging permission command containing the charging time to the slave dispensers 210 and 220 through Ethernet communication.

For reference, the master dispenser 200 may first permit charging in descending order of battery state of charge of electric vehicles acquired from itself and the slave dispensers 210 and 220 or from the slave dispensers 210 and 220 . In this case, time division is applied.

That is, EV 1 with the lowest battery SOC is allowed to be charged for a certain period of time in the time division T1 section, and EV 2 with the next lowest battery SOC is allowed to be charged for a certain period of time in the time division T2 section, and the battery SOC is the highest among them. It is a method of allowing electric vehicle 3 to be charged for a certain period of time in the time-divided section T3. In the section T1, T4, T7, the electric vehicle 1, in the section T2, T5, T8, the electric vehicle 2, and in the section T3, T6, T9, the electric vehicle 3 sequentially You can authorize charging to be charged. In this case, the same charging time can be applied.

As a modified embodiment, the master dispenser 200 first permits charging in the order of lowest battery state of charge obtained from the slave dispensers 210 and 220, but allows more charging time in the order of lower battery state of charge. may be Even in this case, charging is permitted so that charging is sequentially performed in a time-division manner for the slave dispensers 210 and 220 as well as for itself.

Meanwhile, one or more slave dispensers 210 and 220 constituting the plurality of dispensers in FIG. 1 connect the supply path of DC charging power during the time allowed for charging by the master dispenser 200 to charge and control the battery of the electric vehicle. The control unit (see FIG. 3) of the master dispenser 200 and each of the slave dispensers 210 and 220 operates a switching unit (202 or 212 or 222 in FIG. 2) located in the supply path of charging power during the charging time included in the charging permission command. The battery of the electric vehicle is charged by controlling charging power to be supplied to the charging connector side (204 or 214 or 224).

Hereinafter, with reference to FIG. 3, the configuration of the master dispenser 200 and the slave dispenser 210 constituting the above-described rapid charger sharing system will be further described in more detail. The master dispenser 200 and the slave dispenser 210 differ only in the presence or absence of a communication unit capable of transmitting and receiving information with the quick charger 100, and other components are the same, so the configuration of the master dispenser 200 is described below. I'm going to do it.

FIG. 3 illustrates a block configuration diagram of the master dispenser 200 in FIG. 1 .

As shown in FIG. 3, the master dispenser 200 includes a first communication unit 201 for transmitting and receiving battery-related information and charging permission commands for each dispenser with each of the slave dispensers 210 and 220;

It includes a second communication unit 203 for transmitting and receiving battery-related information with a battery management system (BMS) of an electric vehicle connected to its charging connector.

The first communication unit 201 is a communication unit for Ethernet communication, and the second communication unit 203 can be implemented as a communication unit for power line communication (PLC). The transmitted/received battery-related information includes SOC information indicating the current state of charge of the battery, battery capacity, battery voltage, and the like, and the charging permission command for each dispenser may include charging time and identification information of the dispenser that has been authorized to charge.

In addition to the above-described communication units, the master dispenser 200 includes a third communication unit 205 for transmitting and receiving information with the quick charger 100. The third communication unit 205 may be implemented as a communication unit for CAN communication. The master dispenser 200 may transmit voltage and current setting information for setting the voltage and current levels of the charging power output from the quick charger 100 through can communication. The voltage and current setting information may be variably set according to battery-related information of an electric vehicle connected to the slave dispenser. The communication units may be replaced with short-distance wireless communication units according to an operating environment.

In addition to the above-described communication units, the master dispenser 200 is located in the power supply path between the power output terminal of the quick charger 100 and the charging connector 204, and is a relay type that switches on and off by a control unit 206 to be described later. a switching unit 202;

According to the state of charge of the battery of the electric vehicle for each dispenser included in the battery-related information acquired through the first communication unit 201 and the second communication unit 203, the battery of the electric vehicle connected to each dispenser is sequentially charged in a time-division manner. It includes a control unit 206 that controls its own switching unit 202 or transmits a charging permission command for each dispenser to the slave dispensers 210 and 220.

The user interface unit (I/F) 208 not described in FIG. 3 displays the operating state of the dispenser 200 as well as the battery charge state to the outside, receives a user's operation command, and transmits it to the control unit 206 play a role

Through the user interface (I/F) 208, the manager can give priority to one of the battery state of charge and the charging progress time of electric vehicles and set the mode so that rapid charging is performed, as well as the state of charge of the battery and the progress of charging. Considering all the time, the battery charging time of electric vehicles can be adjusted. For example, if the battery state of charge is low and the charging progress time is not long, the charging permission time is set relatively longer than that of other vehicles so that the battery state of charge (for example, 50%) can be reached more quickly.

For reference, FIG. 3 shows that the master dispenser 200 has a switching unit 202 and a charging power supply path so that the battery of the electric vehicle can be charged through the charging connector 204, but the master dispenser 200 It may be designed to include only a configuration that simply provides permission to charge the slave dispensers 210 and 220 without a battery charging function.

Meanwhile, the slave dispensers 210 and 220 include components other than the third communication unit 205 for transmitting and receiving information with the quick charger 100 in the configuration of FIG. 3 .

That is, although not shown, each of the slave dispensers 210 and 220,

A fourth communication unit of an Ethernet communication method for transmitting and receiving battery-related information and charging permission commands for each dispenser with the master dispenser 200;

A fifth communication unit of a power line communication method for transmitting and receiving battery-related information with a battery management system (BMS) of an electric vehicle connected to its charging connectors 214 and 224;

A switching unit located in the power supply path between the power output terminal of the quick charger 100 and the charging connectors 214 and 224 and operating switching on and off;

and a slave-side control unit controlling switching on of the switching unit during a charging permission time according to a charge permission command for each dispenser received through the fourth communication unit.

These slave dispensers 210 and 220 also include the user I/F described in FIG. 3 .

Hereinafter, a rapid charging control method according to an embodiment of the present invention will be described in detail with reference to mutual operations of components of the rapid charger sharing system described in FIGS. 1 to 3.

Figure 4 illustrates a rapid charge control flow chart according to an embodiment of the present invention.

Referring to FIG. 4 , a user who wants to charge a battery of an electric vehicle first connects any charging connector provided in the master dispenser 200 as well as the slave dispensers 210 and 220 to an inlet of the electric vehicle. 4 shows that the electric vehicle is connected to the master dispenser 200 and the slave dispensers 210 and 220 (steps S10, S15 and S20), but it can be assumed that these connections are connected with a time difference.

When the charging connector and the inlet of the electric vehicle are connected, the controller of each dispenser (200, 210, 220) and the battery management system (BMS) in the electric vehicle include the current state of charge (SOC) of the battery, battery capacity, and battery output voltage through power line communication (PLC) and transmits the battery related information to the controller on the dispenser side.

Accordingly, the control unit of the slave dispensers 210 and 220 transfers the battery-related information received from the electric vehicle to the master dispenser 200 through Ethernet communication (steps S25 and S30).

The control unit 206 of the master dispenser 200, which has obtained battery-related information of an electric vehicle connected to its charging connector through power line communication as well as battery-related information of an electric vehicle connected to the slave dispensers 210 and 220 through Ethernet communication, According to the battery state of charge (SOC) of each dispenser (200, 210, 220) included in the battery-related information, the order of dispensers to be allowed to charge sequentially in a time-division manner is set (step S35).

For example, the battery state of charge of the electric vehicle connected to the slave dispenser 1 (210) is the lowest at 20%, the battery state of charge of the electric vehicle connected to the slave dispenser 2 (220) is as low as 30%, and the electric vehicle connected to the master dispenser (200) If the battery state of charge of is 40%, the order of the dispensers to be allowed to charge is set in the order of slave dispenser 1 (210), slave dispenser 2 (220), and master dispenser (200).

Subsequently, the control unit on the master dispenser 200 transmits voltage and current setting information to the quick charger 100 (step S40) and transmits a charging permission command to the slave dispenser 1 (210) at the time of time division T1 according to the set priority (step S45) do.

Since the charge permission command includes a charge permission time of a predetermined time, for example, 10 minutes, the control unit of the slave dispenser 1 (210) that has received the charge permission command switches on the switching unit 212 during the charge permission time. The charging power is supplied to the battery of the electric vehicle through the charging connector.

When the charging permission time ends, the control unit of the slave dispenser 1 (210) switches off the switching unit 212, so that charging of the electric vehicle battery is stopped until the next charging permission command is received.

On the other hand, the controller 206 of the master dispenser 200 receives charging end information from the slave dispenser 1 210 or when the charging permission time ends by counting an internal timer synchronized with other dispensers, according to the set order. At the time of time division T2, a charging permission command is transmitted to the slave dispenser 2 (220), which is the next priority (step S50).

Accordingly, the control unit of the slave dispenser 2 (220) switches on the switching unit 222 during the charging permitted time to charge the battery of the electric vehicle, and when charging is performed during the permitted charging time, the master dispenser 200 side The control unit 206 switches on the switching unit 202 included in its own dispenser 200 at the time division T3 according to the set order to charge the battery of the electric vehicle connected to the master dispenser 200 side.

In this way, the control unit 206 of the master dispenser 200 supplies charging power to the slave dispenser 1 210 and the slave dispenser 2 at time divisions T1, T2, T3, T4, T5, T6, etc. according to the set order. 220, by sending a charging permission command to be sequentially supplied to the master dispenser 200, each of the plurality of electric vehicles connected to each of the dispensers 200, 210, and 220 receives charging power for a certain period of time at a time-divided time point to charge the battery. there is.

Therefore, the quick charger sharing system according to an embodiment of the present invention has the advantage of being able to share and charge one quick charger with a plurality of electric vehicles, and provides an effect of saving quick charger installation costs.

In the above embodiment, an embodiment for guaranteeing a uniform charging time for electric vehicles connected to each dispenser regardless of the state of charge of the battery has been described, but a relatively longer charging time may be permitted for electric vehicles with a low battery charge level.

That is, the control unit 206 of the master dispenser 200 first permits charging by time-dividing in the order of the lowest state of charge of the batteries of the electric vehicles obtained from each dispenser, but allows more charging time in the order of the lowest state of charge of the battery. there is.

For example, if only electric vehicles with a SOC of 50% or more are connected, charging is allowed equally for each vehicle for 10 minutes. 10 minutes for vehicle B, 6 minutes for vehicle B, and 2 minutes for vehicle C are sequentially allowed to charge, and if the SOC of vehicle A is over 50%, charging is allowed equally for 10 minutes per vehicle.

As such, the present invention has the effect of charging the rapid charger by time-division sharing among a plurality of electric vehicles, but differentially allocating charging time according to the battery state of charge, so that the battery of a vehicle with a low state of charge can be charged more quickly. there is.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (8)

A rapid charger for converting AC power into DC charging power and supplying it;
A plurality of dispensers connected in parallel to the power output terminal of the quick charger and selectively supplying DC charging power supplied from the quick charger to the battery of the electric vehicle connected to the charging connector;
One master dispenser constituting the plurality of dispensers is charged so that each of the plurality of dispensers including itself is cyclically charged in a time-division manner according to the state of charge of the battery of the electric vehicle acquired from each slave dispenser through the first communication channel. permit,
Wherein each of the one or more slave dispensers constituting the plurality of dispensers controls the charging of the battery of the electric vehicle by connecting the supply path of the DC charging power during the charging permitted time. The method according to claim 1, wherein the master dispenser,
a first communication unit for transmitting and receiving battery-related information and charging permission commands for each of the slave dispensers;
a second communication unit for transmitting and receiving battery-related information with a battery management system of an electric vehicle connected to its own charging connector;
a third communication unit for transmitting information with the quick charger;
a switching unit located in a power supply path between the power output terminal of the quick charger and the charging connector and performing a switching on/off operation;
Control the switching unit to charge the battery of the electric vehicle connected to each dispenser in a time-division manner according to the state of charge of the battery of the electric vehicle for each dispenser in the battery-related information obtained through the first communication unit and the second communication unit, or charge each dispenser A control unit for transmitting a permission command to the slave dispenser side; rapid charger sharing system comprising a. The method according to claim 2, wherein each of the slave dispensers,
a fourth communication unit for transmitting and receiving battery-related information and charging permission commands for each dispenser with the master dispenser;
a fifth communication unit for transmitting and receiving battery-related information with a battery management system of an electric vehicle connected to its own charging connector;
a switching unit located in a power supply path between the power output terminal of the quick charger and the charging connector and performing a switching on/off operation;
and a slave-side control unit for controlling switching on of the switching unit during a charging permission time according to a charge permission command for each dispenser received through the fourth communication unit. The method according to any one of claims 1 to 3, wherein the master dispenser,
A rapid charger sharing system characterized in that charging is allowed first in the order of the battery state of charge of the acquired electric vehicle. The method according to any one of claims 1 to 3, wherein the master dispenser,
A rapid charger sharing system characterized in that charging is permitted first in the order of low battery state of charge of the acquired electric vehicle, but more charging time is allowed in order of lower battery state of charge. A master dispenser that transmits and receives information through a first communication channel with a quick charger that converts AC power into DC charging power and supplies it, and transmits and receives information through a second communication channel with one or more slave dispensers connected in parallel to the power output terminal of the quick charger In the rapid charging control method of,
obtaining battery-related information from a slave dispenser connected to an electric vehicle charging connector through the second communication channel;
setting the order of dispensers to be allowed to sequentially circulate charging in a time-division manner according to the state of charge of the battery of the electric vehicle for each slave dispenser included in the battery-related information;
Sequentially circularly transmitting a charging permission command allowing charging to be performed for a certain period of time to the slave dispenser through the second communication channel, sequentially circularly transmitting according to the set rank; rapid charging control method comprising: . Transmits and receives information through a first communication channel with a quick charger that converts AC power into DC charging power and supplies it, and transmits and receives information through a second communication channel with one or more slave dispensers connected in parallel to the power output terminal of the quick charger, In the rapid charging control method of a master dispenser that transmits and receives battery-related information with a battery management system of an electric vehicle connected to its charging connector through 3 communication channels,
acquiring battery-related information of an electric vehicle connected to its own charging connector through the third communication channel;
obtaining battery-related information from a slave dispenser connected to an electric vehicle charging connector through the second communication channel;
setting the order of dispensers to be allowed to sequentially circulate charging the dispensers including the dispenser in a time-sharing manner according to the state of charge of the battery of the electric vehicle for each dispenser included in the battery-related information;
Transmits a charging permission command allowing the dispensers including themselves to be charged for a certain period of time to the slave dispenser side through the second communication channel, sequentially circularly transmitted according to the set priority or charging power through its own charging connector Supplying a; fast charging control method comprising a. The rapid charging control method according to claim 6 or 7, wherein the charging permission command includes a charging time, and an electric vehicle having a relatively low battery state of charge is allocated more charging time.

Images