KR20230093904A - Electric vehicle charging management system - Google Patents

Abstract

The present specification relates to an electric vehicle charging management system. The electric vehicle charging management system according to an embodiment may comprise: a pantograph charging device using a pantograph to charge an electric vehicle through contact with a contact bar mounted on the electric vehicle to be charged while outputting contact status information of the pantograph and the contact bar; a vehicle guidance device guiding the location of the electric vehicle in a parking space for charging; and a management device monitoring the abnormal status of the pantograph based on the contact status information from the pantograph charging device.

Description

Electric Vehicle Charging Management System {ELECTRIC VEHICLE CHARGING MANAGEMENT SYSTEM}

The present invention relates to an electric vehicle charging management system, and more particularly, to guide a vehicle entering an electric charging station to an accurate location, and to determine the state of the pantograph through the contact state between the pantograph and the contact bar of the vehicle. It relates to a vehicle charging management system.

Recently, as energy and environmental issues have emerged as major issues, electric vehicles, which are eco-friendly new technology vehicles that replace existing oil-powered internal combustion engine vehicles and have low emissions, are in the limelight as next-generation transportation technologies and are emerging from consumers. Its practical application is progressing rapidly.

Various charging methods for charging the battery of an electric vehicle are being used. As an example, a charging method using an electromagnetic induction phenomenon generated by a primary coil at a charging station and a secondary coil at a vehicle side may be used.

In the charging method using electromagnetic induction, the primary coil is installed on the ground of the charging station, and the secondary coil is installed in a predetermined position of the vehicle relative to the primary coil, so that the electromagnetic induction phenomenon that occurs between the primary and secondary coils is It is used to charge the battery installed in the vehicle.

When charging is performed in a state where the primary and secondary coils are misaligned, the charging efficiency becomes low, and thus the charging time increases. Therefore, a method for guiding a vehicle entering an electric charging station to an accurate location for charging is required.

In the case of a charging method using electromagnetic induction, a charging device using a link type pantograph that moves up or down is used, and charging is performed while the pantograph is in contact with the contact bar of the vehicle.

Therefore, the location and state of the pantograph is an important factor for charging performance, and a method for obtaining information related to the location and state of the pantograph is required.

This background art is technical information that the inventor possessed for derivation of the present invention or acquired in the process of derivation of the present invention, and cannot be said to be known art disclosed to general notaries prior to filing of the present invention.

Embodiments disclosed herein in order to solve the above problems of the prior art make it a technical task to provide an electric vehicle charging management system capable of guiding a vehicle entering an electric charging station to an accurate location.

In addition, embodiments of the present invention make it a technical task to provide an electric vehicle charging management system that can determine the state of the pantograph through the contact state of the pantograph and the contact bar of the vehicle.

The technical problem of the present invention is not limited to the above-mentioned matters, and from the following description, those of ordinary skill in the art to which the present invention belongs will be able to clearly understand other problems intended by the present invention. .

As a technical means for achieving the above-described technical problem, the electric vehicle charging management system according to an embodiment of the present invention charges the electric vehicle through contact with a contact bar mounted on the electric vehicle to be charged using a pantograph, A pantograph charging device that outputs contact state information between the pantograph and the contact bar, a vehicle guidance device that guides the position of an electric vehicle in a parking space for charging, and an abnormal state of the pantograph based on the contact state information from the pantograph charging device. It may include a management device that monitors.

According to an embodiment of the present invention, the pantograph charging device includes a charging control unit that generates a pantograph speed control signal according to a preset setting, a pantograph driver that controls the downward movement speed of the pantograph according to the pantograph speed control signal to bring the pantograph into contact with the contact bar, and a contact state detector detecting a contact state between the pantograph and the contact bar and outputting the contact state information to a charging control unit, and the charging control unit may transmit the contact state information to a management device through a communication unit.

According to an embodiment of the present invention, the pantograph driving unit drives the pantograph, generates operating state and location information of the pantograph, and outputs the information to the charging control unit, and the charging control unit transmits the operating state and location information of the pantograph to the management device through the communication unit. can

According to an embodiment of the present invention, the contact state detection unit detects resistance when the pantograph and the contact bar are in contact, and the charging control unit or management device compares the resistance value detected by the contact state detection unit with the reference resistance value to determine the contact state. It is possible to determine whether or not there is an abnormality.

According to an embodiment of the present invention, a vehicle guidance device includes pressure sensors disposed along a parking line in a parking space, and a display unit installed in front of a vehicle entry and including lamps disposed corresponding to the pressure sensors, , Each of the pressure sensors senses the pressure caused by the wheel of the electric vehicle and outputs a detection signal to the display unit, and the display unit can turn on a lamp corresponding to the detection signal.

Specific details according to various examples of the present invention other than the means for solving the problems mentioned above are included in the description and drawings below.

According to the present invention, there is an effect of guiding a vehicle entering an electric charging station to an accurate location, thereby improving charging efficiency and reducing charging time because the vehicle is charged at the correct location for charging. can be shortened

In addition, there is an effect of grasping the position and state of the pantograph through the contact method, and accordingly, it is easy to determine the state of the pantograph, and charging efficiency can be improved by preventing charging by the pantograph in an abnormal state. can shorten the time.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Since the contents of the problem to be solved, the means for solving the problem, and the effect mentioned above do not specify essential features of the claims, the scope of the claims is not limited by the matters described in the contents of the invention.

1 is a diagram illustrating a state in which a vehicle is disposed at an electric vehicle charging station operated by an electric vehicle charging management system according to an embodiment of the present invention.
2a and 2b are diagrams illustrating contact between a pantograph for charging an electric vehicle and a contact bar in the present invention.
3 is a block diagram showing a pantograph charging device according to an embodiment of the present invention.
4 is a view showing an installation example of a vehicle guidance device according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims.

Since the shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiment of the present invention are exemplary, the present invention is not limited to the matters shown. Like reference numbers designate like elements throughout the specification. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

In interpreting the components, it is interpreted as including the error range even if there is no separate explicit description of the error range.

In the case of a description of a temporal relationship, when a temporal precedence relationship is described with “after,” “next to,” “next to,” “before,” etc., when it is not continuous unless “immediately” or “directly” is used may also be included.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Therefore, the first component mentioned below may also be the second component within the technical spirit of the present invention.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the corresponding component is not limited by the term. When an element is described as being “connected”, “coupled” or “connected” to another element, that element is directly connected or may be connected to the other element, but indirectly unless specifically stated otherwise. It should be understood that other components may be "interposed" between each component that is or can be connected.

“At least one” should be understood to include all combinations of one or more of the associated elements. For example, "at least one of the first, second, and third elements" means not only the first, second, or third elements, but also two of the first, second, and third elements. It can be said to include a combination of all components of one or more.

Each feature of the various embodiments of the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each embodiment can be implemented independently of each other or can be performed together in an association relationship. may be

Hereinafter, looking at the embodiments of the present invention through the accompanying drawings and embodiments are as follows. Since the scales of the components shown in the drawings have different scales from actual ones for convenience of explanation, they are not limited to the scales shown in the drawings.

Hereinafter, an electric vehicle charging management system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a view showing a state in which a vehicle is disposed in an electric vehicle charging station operated by an electric vehicle charging management system according to an embodiment of the present invention, and FIGS. 2A and 2B are contacts between a pantograph for charging an electric vehicle and a contact bar in the present invention. is an example

3 is a block configuration diagram showing a pantograph charging device according to an embodiment of the present invention, and FIG. 4 is a view showing an installation example of a vehicle guide device according to an embodiment of the present invention.

An electric vehicle charging management system according to an embodiment of the present invention includes a vehicle charging device 100, a power bank 200, a bridge 300, a pantograph charging device 400, a vehicle guide device 500, and a management device 600. ) may be included.

The power bank 200 serves to convert power supplied through the switchboard into charging power and supply it to the pantograph charging device 400 .

The vehicle charging device 100 is mounted on an electric vehicle (ex, electric bus, etc.) (101 to 104), obtains vehicle information, transmits it to the pantograph charging device 400, and requests charging, and the pantograph charging device 400 It plays the role of charging according to the control of

A vehicle referred to below means an 'electric vehicle' even if 'electric' is not attached.

In the present invention, the pantograph charging device 400 is illustrated as charging four vehicles 101 to 104, but the present invention is not limited thereto, and a smaller number (1) using one pantograph charging device 400 to 3) or more (eg, 10 or more) vehicles.

The vehicle charging device 100 is installed at the top of the driver's seat of the vehicle (eg, 103), and is in direct contact with the pantograph charging device 400 to receive charging power and charge the battery 110, charging unit 110. It may include a vehicle device 120 that acquires vehicle information, transmits it to the pantograph charging device 400, and requests charging.

As shown in FIGS. 2A and 2B , the charging unit 110 is installed in the vehicle 103 and receives charging power through direct contact with the pantograph charging device 400 to charge the battery. These charging units 110 are individually provided in all vehicles. In FIGS. 2A and 2B , reference numerals 111 and 112 denote contact bars that receive charging power in a direct contact manner.

In the bridge 300, a movable rail 304 capable of moving the pantograph charging device 400 is formed so that the pantograph charging device 400 can freely move along the movable rail 304.

The bridge 300 may mean a building for moving the pantograph charging device 400. The bridge 300 is preferably formed higher than the electric bus charged in the pantograph method to prevent a vehicle entering or leaving for charging at the lower end of the bridge 300 from colliding with the bridge 300 .

The pantograph charging device 400 serves to charge the vehicle through contact with contact bars (eg, 111 and 112) mounted on the electric vehicle to be charged using a top-down pantograph.

As shown in FIG. 3 , the pantograph charging device 400 includes a charging control unit 410, a pantograph driving unit 420, a contact state detection unit 430, and a communication unit 440. The configuration of the pantograph charging device 400 is not limited thereto.

The charging control unit 410 generates a pantograph speed control signal according to a predetermined setting, and the pantograph driving unit 420 controls the downward movement speed of the pantograph 403 according to the pantograph speed control signal generated by the charging control unit 410 to make the pantograph ( 403 is brought into contact with the contact bars 111 and 113 mounted in the vehicle, and operation (eg, rising or falling) state and location information of the pantograph 403 are generated.

The contact state detection unit 430 detects a contact state between the pantograph 403 and the contact bars 111 and 113, and for example, electrical resistance generated when the pantograph 403 and the contact bars 111 and 113 come into contact ( Hereinafter, contact resistance) may be implemented to sense.

The pantograph driver 420 may output information on the operating state and location of the pantograph 403 to the charging controller 410, and the contact state detector 430 may output contact state information to the charging controller 410.

Accordingly, the charging controller 410 transmits the operation state and position information of the pantograph 403 and the contact state information to the management device 600 through the communication unit 440, and the operation state and position of the pantograph 403 information, and contact state information can be monitored.

The charging control unit 410 or the management device 600 stores a reference value that is a criterion for determining whether or not there is an abnormality in the contact state, and determines whether there is an abnormality in the contact state detected by the contact state detector 430. there is.

For example, the reference value may be a resistance value detected when the pantograph 403 and the contact bars 111 and 113 normally contact each other, and the charging control unit 410 or the management device 600 may use the contact state detection unit 430 ), it is possible to determine whether or not there is an abnormality in the contact state by comparing the resistance value detected by the reference resistance value.

Accordingly, the operating state, position, and contact state of the pantograph 403 can be monitored in real time, and the charging manager can check the abnormal state based on the information monitored by the management device 600, and the pantograph in the abnormal state. Prompt action on (403) can be made.

In this way, according to the present invention, it is easy to determine the state of the pantograph 403 through monitoring based on the contact state between the pantograph 403 and the contact bars 111 and 113, and the pantograph 403 in an abnormal state Since it is possible to quickly process for , charging by the pantograph 403 in an abnormal state can be prevented, charging efficiency can be improved, and charging time can be shortened.

The vehicle guide device 500 guides the location of the vehicle on the charging space and guides the driver to park the vehicle in the correct parking space. As shown in FIG. 4, the parking line (parking line) in the charging space It may include a pressure sensor 510 disposed along line PL) and a display unit 520 disposed in front of vehicle entry.

According to an embodiment, the pressure sensors 511 to 514 correspond to the left front wheel (or left front wheel), right front wheel (or right front wheel), left rear wheel (or left rear wheel), and right rear wheel (or right rear wheel) of the vehicle. can be placed.

The pressure sensors 510 (511 to 514) detect the pressure caused by the wheel, and when the pressure is sensed, detect signals SS (SS1 to SS4) may be output.

Depending on the embodiment, the pressure sensor 510 may output the detection signal SS to the management device 600, but is not limited thereto, and may output the detection signal SS to the display unit 520. .

The display unit 520 is a configuration for displaying whether or not pressure is sensed by the pressure sensor 510, and may include, for example, a physical lamp 521 disposed to correspond to the pressure sensor 510, but is not limited thereto. Instead, it may be implemented to display whether pressure is sensed or not for each pressure sensor 510 through a graphical user interface (GUI) environment.

Depending on the embodiment, the display unit 520 may operate according to a detection signal SS from the pressure sensor 510 or a control signal CS from the management device 600 .

When the display unit 520 operates according to the detection signal SS from the pressure sensor 510, the display unit 520 may turn on the lamp 521 corresponding to the detection signal SS. .

When the display unit 520 operates according to the control signal CS from the management device 600, the management device 600 provides a GUI environment on the display unit 520 in response to the detection signal SS and Whether each pressure sensor 510 detects pressure may be displayed.

As such, by detecting the location of a vehicle entering for charging through the pressure sensor 510 and displaying it through the display unit 520, the state where the vehicle is located may be displayed.

Accordingly, the driver can accurately park the vehicle at the charging position while confirming the location of the vehicle through the lamp 521 displayed on the display unit 520 .

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. Therefore, the embodiments disclosed in this specification are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. It should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed according to the scope of the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: vehicle charging device 110: charging unit
111, 112: contact bar 120: vehicle device
200: power bank 300: bridge
400: pantograph charging device 410: charging control unit
420: pantograph drive unit 430: contact state detection unit
440: communication unit 500: vehicle guidance device
510: pressure sensor 520: display unit
600: management device

Claims (6)

a pantograph charging device that charges the electric vehicle through contact with a contact bar mounted on the electric vehicle to be charged using the pantograph, and outputs contact state information between the pantograph and the contact bar;
a vehicle guidance device for guiding a position of the electric vehicle in a parking space for charging; and
An electric vehicle charging management system comprising a management device for monitoring an abnormal state of the pantograph based on contact state information from the pantograph charging device. According to claim 1,
The pantograph charging device,
A charging control unit that generates a pantograph speed control signal according to a predetermined setting;
a pantograph driving unit for contacting the pantograph with the contact bar by controlling a downward movement speed of the pantograph according to the pantograph speed control signal; and
A contact state detector detecting a contact state between the pantograph and the contact bar and outputting contact state information to the charging control unit;
Wherein the charging control unit transmits the contact state information to the management device through a communication unit. According to claim 2,
While driving the pantograph, the pantograph driver generates operating state and location information of the pantograph and outputs the information to the charging control unit;
The charging control unit transmits the operating state and location information of the pantograph to the management device through the communication unit. According to claim 2,
The contact state detection unit detects resistance when the pantograph and the contact bar are in contact,
Wherein the charging control unit or the management device compares the resistance value detected by the contact state detection unit with a reference resistance value to determine whether or not there is an abnormality in the contact state. According to claim 1,
The vehicle guidance device,
pressure sensors disposed along a parking line in a parking space; and
A display unit installed in front of vehicle entry and including lamps disposed corresponding to the pressure sensors,
Each of the pressure sensors senses the pressure caused by the wheel of the electric vehicle and outputs a detection signal to the display unit,
The electric vehicle charging management system, wherein the display unit turns on a lamp corresponding to the detection signal. According to claim 1,
The vehicle guidance device,
pressure sensors disposed along a parking line in a parking space; and
Including a display unit installed in front of the vehicle entry,
Each of the pressure sensors senses the pressure caused by the wheel of the electric vehicle and transmits a detection signal to the management server,
Wherein the management server provides a GUI environment on the display unit in response to the detection signal and displays whether pressure is sensed or not for each pressure sensor.

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