KR20180064810A - Charging system for electric vehicle and method thereof - Google Patents

Abstract

The present invention is to provide a system and a method for charging an electric vehicle, which can check a real-time power amount, a power amount of an electric vehicle charger, and a charging time, and enables a user to easily recognize checked data, even without a distribution facility requiring an additional installation when the electric vehicle charger is to be installed in an existing distribution device installed in a household or commercial facility. To this end, according to an embodiment of the present invention, the system for charging an electric vehicle comprises: a power measurement device for measuring power information of a distribution terminal box, and transmitting the measured power information; a charging device including a recognition unit for recognizing an electric vehicle to be charged, a power supply unit to which a charging terminal of the electric vehicle is connected, a display unit for displaying a charging state of the electric vehicle, and a communication module for transmitting charging information of the electric vehicle; and a control device for controlling, in real time, a charging power value or a current value of the charging device on the basis of information transmitted from the power measurement device and the charging device, and transmitting the charging information of the electric vehicle to a user terminal or a central server. Therefore, an additional installation of an electricity meter and a distribution box is not required when an electric vehicle charger is installed in an existing household or commercial facility, and thus, the construction time and construction costs can be reduced.

Description

TECHNICAL FIELD [0001] The present invention relates to an electric vehicle charging system,

The present invention relates to a system and method for charging an electric vehicle, and more particularly, to a system and method for charging an electric vehicle, and more particularly, to an electric vehicle charging system and a method of charging an electric vehicle without a power meter and a distribution box, To an electric vehicle charging system and method capable of checking charge time and effectively providing checked data to a user.

In recent years, as part of efforts to reduce environmentally harmful gases, interest in environmentally friendly vehicles replacing conventional fossil fuel automobiles is increasing. An electric vehicle, which is one of the environmentally friendly automobiles, is a vehicle equipped with a battery that can charge electricity inside the vehicle, and a vehicle that drives the vehicle motor by the electric power charged in the battery.

Just as a conventional fossil fuel car injects fuel at a facility such as a gas station, the electric car also charges and charges the battery at an electric charging station (e.g., a charger). These charging stations are installed nationwide and are building a charging infrastructure.

Electricity charging infrastructure of electric vehicle should supply electric power from power distribution system. In future, electric power facilities should be installed in the future when charging infrastructure is increased. However, it is difficult to expand electric power lines such as power equipment and railroad tracks or saturation of underground cables. It is necessary to prepare for this situation.

In addition, as the spread of electric vehicles has recently increased, the need for charging facilities for electric vehicles is increasing. Electric vehicles can be charged using distribution facilities installed in homes, distribution facilities installed in public places, and distribution facilities in commercial facilities, but their use is limited due to the limited amount of power that can be provided.

Generally, the electric power consumption of a charger of an electric vehicle requires a power consumption of 3 KW to 7 KW for a slow charger. For this reason, an electric meter and a distribution box installed in ordinary households or commercial facilities have insufficient capacity. It is a reality that an additional electric meter and a cabin should be installed. These additional meters and distribution boxes are usually accompanied by electrical and civil works, which typically take between one and two weeks to install and incur additional costs.

In order to overcome the above-mentioned problems, there has been proposed a technique of installing additional electric power facilities or changing the electric power distribution facilities themselves, but these technologies were also inefficient because they incurred a lot of installation time and installation costs.

Korean Patent No. 10-1525566 (Charge Control Apparatus and Method of Electric Vehicle) of the Prior Art The invention relates to an apparatus and method for managing charging of an electric vehicle by estimating electric power load by time line in a distribution line, It is necessary to provide an additional device to the power distribution apparatus installed in the vehicle, and there is still a limitation in that the charging of the electric vehicle can be performed only for a limited time.

Therefore, it is urgently required to develop an electric vehicle charging system that does not need any additional facilities while using the electric power distribution box installed in ordinary households or commercial facilities.

Korean Patent No. 10-1525566 (published on April 28, 2015)

The present invention can check the real-time electric energy, the electric power and the charging time of the electric vehicle charger without using a power distribution system that requires additional installation when installing an electric vehicle charger in a distribution apparatus of a home or commercial facility installed in the past, And it is an object of the present invention to provide an electric vehicle charging system and method for allowing a user to easily recognize the electric vehicle.

In addition, it is possible to effectively solve the problems of the installation time and the installation cost, which are caused when installing additional distribution facilities in the existing distribution apparatus, and to provide the user with information about the charge (charge rate of the electric vehicle, And information on the overall management of the vehicle such as charging time).

An electric vehicle charging system according to an embodiment of the present invention includes a power measuring device that measures electric power information of a distribution terminal box and transmits measured electric power information; A charging device including a recognition section for recognizing an electric vehicle to be charged, a power source section to which a charging terminal of the electric vehicle is connected, a display section for displaying a charging state of the electric vehicle, and a communication module for transmitting charging information of the electric vehicle; And a control device for controlling the charging power value or the current value of the charging device in real time based on the information received from the power measuring device and the charging device and transmitting the charging information of the electric vehicle to the user terminal or the central server .

The power information may include a power value or a current value.

The recognition unit is a photographing unit that recognizes the number plate of the electric vehicle.

The controller may control a charging power value or a current value of the charging apparatus in real time based on a power value or a current value included in the power information.

The controller may control the charging power value or the current value of the charging device to be the reference value when the available power value or the available current value included in the power information is equal to or greater than a predetermined reference value, And controls the charging power value or the current value of the charging device to be the available power value or the available current value.

Further, the control device controls the charging operation of the charging device according to whether or not the electric vehicle recognized by the recognizing part is included in the pre-stored vehicle database.

The recognition unit may recognize the time when the electric vehicle is connected to the power source unit,

The control device controls the charging device to charge the electric vehicle at a full speed when the time recognized by the recognition section is within a predetermined range.

A method for charging an electric vehicle according to an embodiment of the present invention includes a first step of recognizing information of an electric vehicle as a charging object and determining whether to charge the electric vehicle; A second step of measuring power information (power amount or current amount) of the power distribution terminal box through the power measurement device; A third step of charging the electric vehicle by changing a charging power value or a current value through a charging device separately connected to the distribution terminal box based on the measured electric power information in real time;

And a fourth step of transmitting charging state information of the electric vehicle to a user terminal or a central server.

If the available power value or the available current value included in the power information is equal to or greater than a predetermined reference value, the third step controls the charging power value or the current value of the charging device to be the reference value. If the available power value or available current value is less than the predetermined reference value The control unit controls the charge power value or the current value of the charging apparatus to be the available power value or the available current value and charges the electric vehicle.

According to an aspect of the present invention, there is no need to install an additional electric meter and a distribution box when an electric vehicle charger is installed in a conventional home or commercial facility, thereby reducing construction time and construction cost.

Also, the controller control method using the server has an effect that the user of the electric vehicle charging system can easily recognize and utilize the data necessary for the vehicle management such as the charging time, the charging amount, and the number of charging.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a configuration of an electric vehicle charging system according to an embodiment of the present invention. Fig.
FIG. 2 is a view showing a charging device in the configuration of an electric vehicle charging system according to an embodiment of the present invention. FIG.
3 is a view showing a slow-fast charging device connected to a charging device in the configuration of an electric vehicle charging system according to an embodiment of the present invention.
4 is a flowchart showing a process of charging an electric vehicle according to an embodiment of the present invention;
5 is a flowchart showing a detailed procedure of an electric vehicle charging method according to an embodiment of the present invention.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component. In addition, like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, an electric vehicle charging system and method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and specific embodiments will be described together.

First, a configuration of an electric vehicle charging system according to an embodiment of the present invention will be described with reference to Figs. 1 to 3. Fig.

2 is a view showing a charging apparatus in a configuration of an electric vehicle charging system according to an embodiment of the present invention, and Fig. 3 is a view showing the charging apparatus of the electric vehicle charging system according to the embodiment of the present invention. Fig. 1 is a diagram showing a slow-fast charging device connected to a charging device in the configuration of an electric vehicle charging system according to an embodiment of the present invention.

1, an electric vehicle charging system according to an embodiment of the present invention includes a power measurement device 10, a charging device 30, and a control device 50. [

As shown in FIG. 1, a distribution terminal box 1 provided in an existing home, a common facility, or a commercial facility (for example, household power in FIG. 1) receives home electric power or commercial electric power, It is common to provide a watt-hour meter 9 for measuring the amount of electric power separately provided with the earth leakage breaker 3, 7 and the distribution breaker 5 for transmission.

Each configuration of the electric vehicle charging system according to the embodiment of the present invention can be directly or indirectly connected to the distribution terminal box 1. The electric power measurement device 10 can measure the electric power information of the electric distribution terminal box 1 ) And transmit the measured power information.

More specifically, the input and output sections of the watt-hour meter 9, the input and output sections of the distribution breaker 5, the earth leakage breakers 3 and 7, May be provided at the input or output of the controller.

The charging device 30 is configured to charge the electric vehicle using electric power from the distribution terminal box 1. Specifically, the charging device 30 includes a recognizing portion 31 for recognizing the electric vehicle to be charged, A power supply unit 35 connected to the vehicle, a display unit 33 indicating a charged state of the electric vehicle, and a communication module for transmitting charging information of the electric vehicle.

The control device 50 controls the charging power value or current value of the charging device 30 in real time based on the information received from the power measuring device 10 and the charging device 30, To a user terminal or a central server. Here, the control device 50 may be implemented as a server or controller type according to the communication method of the transmission.

That is, the communication method of the transmission may be a controller installed adjacent to the charging device 30 in the case of the short distance direct communication method, or a server type which is not limited by the installation position in the case of the communication method such as the Internet have.

In addition, the power information measured through the power measuring device 10 can be a power amount value or a current amount value that is currently operating in the power distribution terminal box 1 and available. That is, the power value indicating the amount of power that can be supplied from the distribution terminal box 1 and the current value can be included in the measured power information.

2, the charging device 30 includes a recognition unit 31 for acquiring information on an electric vehicle to be charged. The recognition unit 31 recognizes the charging target electric vehicle in various forms For example, in the form of a photographing unit for recognizing the number plate of the electric vehicle. That is, the recognition unit 31 recognizes the number plate of the target electric vehicle for recognition as a charge object, compares the license plate with the previously stored electric vehicle database, calculates the charge registered vehicle, the vehicle information necessary for charging, Lt; / RTI >

Further, the control device 50 can control the charging operation of the charging device 30 depending on whether or not the electric vehicle recognized by the recognizing part 31 is included in the pre-stored vehicle database. That is, the control device 50 can perform control such that the operation of the charging device 30 is performed only when the information of the electric vehicle recognized by the recognizing part 31 is in the pre-stored vehicle database.

The recognition unit 31 recognizes the time at which the electric vehicle is connected to the power supply unit 35 and accordingly the control unit 50 determines whether the time recognized by the recognition unit 31 is within the predetermined range, 30 can be controlled to charge the electric vehicle at a constant speed through the slow-rapid charging device 70. [

That is, the control device 50 can control so that the continuous charging can be performed in the default mode when there is a charging request of the electric vehicle in a specific time band (time within a predetermined range). For example, if the time of the charging request is at night or evening and electric vehicle users start charging and leave the electric vehicle for a long time, the need for rapid charging is low. In such a case, The control device 50 can control the charging device 30 to operate in the basic mode so that the charging device 30 can operate.

In addition, the control device 50 can control the charging power value or current value of the charging device 30 in real time based on the available power value or the available current value included in the power information measured by the power measuring device 10 have. That is, the state of the electric power available in the current distribution terminal box 1 is grasped to determine the amount of electric power that can be provided in the charging process in the charging device 30, and the charging process of the charging device 30 is performed .

Specifically, when the available electric power value or the available electric current value included in the electric power information is equal to or greater than the predetermined reference value, the control device 50 can control the charging electric power or the electric current value of the charging device 30 to be the reference value, If it is less than the reference value, it is possible to control the charging power value or current value of the charging device 30 to be the available power value or the available current value.

It is preferable that the control process of the control device 50 is performed in real time for efficient power supply and charging in consideration of the amount of power available to the current distribution terminal box 1. [

Here, the available power value or the available current value is a power value or a power value except for the power value or the current value provided to the other loads connected to the distribution box 1 from the total power value or the current value that can be provided by the target distribution box 1 Corresponds to the current value.

The rapid-slow charging apparatus 70 shown in FIG. 3 is a device that allows the rapid charging mode or the continuous charging mode for an electric vehicle connected to the charging apparatus 30 to be performed, and connects to the charging apparatus 30 And can be operated. The fast-slow charging apparatus 70 corresponds to an additional configuration of the present system. The charging device 30 may be provided with additional connection terminals to which the fast-slow charging device 70 can be connected.

Further, the charging device 30 of the pretransit vehicle system according to the embodiment of the present invention can be implemented as a communication AC charger type and can charge the electric vehicle with AC while communicating with a server or the like, which is the control device 50. [

In addition, the control device 50 may be a terminal (specifically, transmitted through an application) possessed by the electric vehicle driver's side of the information such as the charging time, the charging amount and the charging charge of the electric vehicle to be charged or a central server ).

The controller 50 may be a server type or a controller type. In case of a server type, the controller 50 may be used when connecting to a server such as the Internet or a mobile communication network. In the case of a single use without an external communication network, .

Finally, the process of the electric vehicle charging method according to the embodiment of the present invention will be described below with reference to Figs. 4 to 5. Fig.

FIG. 4 is a flowchart illustrating a method of charging an electric vehicle according to an embodiment of the present invention, and FIG. 5 is a flowchart illustrating a detailed procedure of an electric vehicle charging method according to an embodiment of the present invention.

As shown in FIG. 4, the electric vehicle charging process according to the embodiment of the present invention includes a process (S41) of recognizing the information of the electric vehicle as the first step and charging or not, (Step S42) of measuring power information (available electric power or available electric current amount) of the power distribution terminal box through the device, a charging electric power value or current A step S43 of charging the electric vehicle by changing the value in real time, and a step S49 of transmitting the charge state information of the electric vehicle, which is the fourth step, to the user terminal or the central server.

As shown in FIG. 5, the charging process of the third stage may be subdivided. First, an available electric energy value or an available electric energy value is calculated from the electric power information of the electric distribution terminal box measured through the electric power measuring device 10 It is determined whether the available power value or current value is equal to or greater than a predetermined reference value (S43). Then, if the available power value or current value is equal to or greater than the reference value, the charging device 30 is controlled so that the charging power value or the current value of the charging device 30 becomes the reference value (S45) If the value or the current value is less than the reference value, the charging device 30 is controlled to charge the charging device 30 so that the charging power value or current value of the charging device 30 becomes the available power value or the available current value (S47). After one of the two processes described above, the process returns to step S49.

In addition, the predetermined reference value may be a minimum power amount or a current amount capable of stably providing an available power amount or current amount considering a total power amount or a current amount available in the distribution terminal box. That is, the predetermined reference value may be changed and set according to the available power capability of the distribution terminal box.

As described above, the high performance fly ash for low-heat-mixing mixed cement according to the embodiment of the present invention has been described with specific examples. However, it should be understood that the present invention is not limited to the embodiments described above, but may be modified and modified in some ways. Accordingly, the claims of the present invention shall include modifications and variations that fall within the true scope of the present invention.

1: Distribution box 3, 7: Earth leakage breaker
5: Distribution breaker 9: Watt hour meter
10: Power measuring device 30: Charging device
31: Identification part 33: Display part
35: power supply unit 50: control device
70: Slow-speed charging device

Claims (9)

A power measuring device for measuring the power information of the distribution terminal box and transmitting the measured power information;
A charging device including a recognition section for recognizing an electric vehicle to be charged, a power source section to which a charging terminal of the electric vehicle is connected, a display section for displaying a charging state of the electric vehicle, and a communication module for transmitting charging information of the electric vehicle;
And a control device for controlling the charging power value or the current value of the charging device in real time based on the information received from the power measuring device and the charging device and transmitting the charging information of the electric vehicle to the user terminal or the central server Characterized by electric vehicle charging system. The method according to claim 1,
Wherein the power information comprises an available power value or an available current value. The method according to claim 1,
Wherein the recognizing unit is a photographing unit that recognizes the license plate of the electric vehicle. 3. The method of claim 2,
The control device includes:
Wherein the control unit controls the charging power value or the current value of the charging apparatus in real time based on the available power value or the available current value included in the power information. The method of claim 3,
The control device includes:
When the available power value or the available current value included in the power information is equal to or greater than a predetermined reference value, controlling the charging power value or the current value of the charging device to be the reference value, and when the available power value or the available current value is less than the predetermined reference value, Or the current value is the available electric power value or the available electric current value. The method of claim 3,
The control device includes:
Wherein the control unit controls the charging operation of the charging device according to whether the recognized vehicle is included in the pre-stored vehicle database. The method according to claim 1,
The recognition unit recognizes the time when the electric vehicle is connected to the power source unit,
Wherein the control device controls the charging device to charge the electric vehicle at a full speed when the time recognized by the recognition section is within a predetermined range. A first step of recognizing information of an electric vehicle as a charge object and determining whether to charge the electric vehicle;
A second step of measuring power information (available power amount or available current amount) of the power distribution terminal box through the power measurement device;
A third step of charging the electric vehicle by changing a charging power value or a current value through a charging device separately connected to the distribution terminal box based on the measured electric power information in real time;
And a fourth step of transmitting charging state information of the electric vehicle to a user terminal or a central server. 9. The method of claim 8,
In the third step,
When the available power value or the available current value included in the power information is equal to or greater than a predetermined reference value, controlling the charging power value or the current value of the charging device to be the reference value, and when the available power value or the available current value is less than the predetermined reference value, Or the current value is the available electric power value or the available electric current value, and charging the electric vehicle.

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