KR20230158329A - Electric power sharing type electric car charging system and method of charging electric car using sharing electric power - Google Patents

Abstract

The present invention is a power sharing electric vehicle charging system and power sharing that uses the power of a previously charged vehicle to charge other vehicles that require charging in situations where power is not supplied, such as a power outage or peak power situation. Provides a method for charging electric vehicles. The power sharing type electric vehicle charging system according to an embodiment of the present invention charges by supplying charging power to a plurality of vehicles, or receives shared power from a vehicle with a high power charging rate among the plurality of vehicles to reduce the power charging rate. A charging terminal for charging low-powered vehicles; a main power supply unit that supplies the charging power to the charging terminal; and controlling the charging terminal to charge each of the plurality of vehicles with the charging power when the charging power is supplied from the main power supply unit, and controlling the charging terminal to charge each of the plurality of vehicles with the charging power, and controlling the charging terminal to charge each of the plurality of vehicles with the charging power when the charging power is not supplied from the main power supply unit. It includes a charging control unit that receives shared power from a vehicle with a high power charging rate and controls the charging terminal to charge a vehicle with a low power charging rate.

Description

Electric power sharing type electric car charging system and method of charging electric car using sharing electric power}

The technical idea of the present invention relates to an electric vehicle charging system, and more specifically, to a power sharing type electric vehicle charging system and a power sharing type electric vehicle charging method that charges by sharing the charging power of other vehicles.

Recently, the number of electric vehicles that are driven by electric charging and discharging, replacing internal combustion engines, is increasing, and the construction of charging infrastructure for electric vehicles is in progress. These electric vehicles are charged by receiving power from a charging terminal that receives power from an electric power supplier, or are charged through an electrical supply means such as an outlet provided in a general house or building. However, the charging terminal and the electricity supply means cannot provide power in a power outage situation where the power supplier cannot provide power or a power peak situation where power supply is limited, so there is a problem in that the electric vehicle cannot be charged.

Korean Patent Application No. 10-2016-0071407

The technical problem to be achieved by the technical idea of the present invention is to charge an electric vehicle that requires charging due to a low charging rate by using the power of the already charged electric vehicle in a situation where power is not supplied, such as a power outage situation or a power peak situation. To provide a power sharing electric vehicle charging system and a power sharing electric vehicle charging method.

However, these tasks are illustrative, and the technical idea of the present invention is not limited thereto.

The power sharing type electric vehicle charging system according to the technical idea of the present invention to achieve the above technical problem is to charge by supplying charging power to a plurality of vehicles, or to charge shared power from a vehicle with a high power charging rate among the plurality of vehicles. A charging terminal that receives power and charges a vehicle with a low power charging rate; a main power supply unit that supplies the charging power to charge the plurality of vehicles to the charging terminal; and controlling the charging terminal to charge each of the plurality of vehicles with the charging power when the charging power is supplied from the main power supply unit, and controlling the charging terminal to charge each of the plurality of vehicles with the charging power, and controlling the charging terminal to charge each of the plurality of vehicles with the charging power when the charging power is not supplied from the main power supply unit. It may include a charging control unit that receives shared power from a vehicle with a high power charging rate and controls the charging terminal to charge a vehicle with a low power charging rate.

In one embodiment of the present invention, if the charging power is not supplied from the main power supply unit, the charging control unit receives shared power from a vehicle with a high power charging rate among the plurality of vehicles and selects a vehicle with a low power charging rate. It may include a shared charging control unit that controls the charging terminal to charge.

In one embodiment of the present invention, the shared charging control unit includes a main power supply detection unit that detects whether main power is supplied from the main power supply unit to the plurality of vehicles; a power charging rate comparison unit that compares the respective power charging rates of the plurality of vehicles; Among the plurality of vehicles, a vehicle with a high power charging rate is selected as a shared power supply vehicle to supply shared power, and a vehicle with a low power charging rate is selected as a shared power charging vehicle to be charged by receiving the shared power. vehicle selection unit; a shared power supply amount determination unit that determines a shared power supply amount supplied from the shared power supply vehicle to the shared power charging vehicle; and a shared power supply processing unit that controls the charging terminal to supply shared power from the shared power supply vehicle to the shared power charging vehicle for charging.

In one embodiment of the present invention, the shared charging control unit further includes a shared power charging processing unit that processes the amount for the shared power supply to the shared power charging vehicle and reverse charges the shared power supply vehicle. It can be included.

In one embodiment of the present invention, the power charging rate may be provided as a relative value by setting the maximum power charging capacity of each of the plurality of vehicles to 100% and comparing the current power charging amount to the maximum power charging capacity. there is.

In one embodiment of the present invention, the shared power supply amount may be determined to reach an average power charging rate that is the average of the power charging rate of the shared power supply vehicle and the power charging rate of the shared power charging vehicle.

In one embodiment of the present invention, the shared power supply amount may be determined as a power supply amount preset by the user of the shared power supply vehicle, or may be determined as a power supply amount preset by the user of the shared power charging vehicle.

In one embodiment of the present invention, the charging control unit further includes a general charging control unit that controls the charging terminal unit to charge each of the plurality of vehicles with the charging power when the charging power is supplied from the main power supply unit. can do.

In one embodiment of the present invention, the normal charging control unit includes a vehicle confirmation processing unit that checks each of the plurality of vehicles connected to the charging terminal; a vehicle charging processing unit that controls the charging terminal to start, proceed, and end a process of charging each of the plurality of vehicles with the charging power supplied from the main power supply unit; and a charging and billing processing unit that processes charging fees corresponding to the charging power charged to each of the plurality of vehicles.

In one embodiment of the present invention, the power sharing type electric vehicle charging system provides the operating power to operate the charging terminal unit and the charging control unit, respectively, when the charging power is not supplied from the main power supply unit. It may further include a charging terminal and an auxiliary power supply unit that supplies the charging control unit.

In one embodiment of the present invention, the auxiliary power supply unit may include at least one of a generator, a battery, an uninterruptible power supply (UPS), and a solar cell.

In one embodiment of the present invention, the power sharing type electric vehicle charging system may further include a charging management server that transmits and receives management information signals for the plurality of vehicles from the charging control unit.

In one embodiment of the present invention, the charging terminal unit is composed of one terminal device connected together to the plurality of vehicles, or each of the plurality of vehicles is connected to the plurality of vehicles, and the charging control unit is connected in common to a plurality of terminal devices. It can be composed of terminal devices.

A power sharing electric vehicle charging method according to the technical idea of the present invention for achieving the above technical problem includes: detecting whether main power is supplied to a plurality of vehicles; comparing charging rates of each of the plurality of vehicles when the main power is not supplied; selecting a vehicle with a high power charging rate among the plurality of vehicles as a shared power supply vehicle to supply shared power, and selecting a vehicle with a low power charging rate as a shared power charging vehicle to be supplied and charged with the shared power; Determining the amount of shared power supplied from the shared power supply vehicle to the shared power charging vehicle; and charging the shared power by supplying shared power from the shared power supply vehicle to the shared power charging vehicle.

In one embodiment of the present invention, the power sharing electric vehicle charging method includes the steps of charging the shared power charging vehicle an amount for the shared power supply amount and reverse charging the shared power supply vehicle; It may further include.

The power sharing type electric vehicle charging system according to the technical idea of the present invention performs charging of the electric vehicle using power supplied by the power supplier under normal circumstances, and receives power from the power supplier, such as in a power outage situation or a power peak situation. In a situation where this is not supplied, the power of an electric vehicle with a high charging rate can be used to charge an electric vehicle that requires charging with a low charging rate. Accordingly, even in situations where normal power supply is impossible, users of electric vehicles that require charging can be guaranteed to charge their electric vehicles, and users of electric vehicles that provide shared power for charging can share a portion of the already charged power. In addition, profits can be obtained by reverse charging the amount corresponding to the shared power.

The effects of the present invention described above have been described as examples, and the scope of the present invention is not limited by these effects.

1 is a diagram illustrating a power sharing electric vehicle charging system according to an embodiment of the present invention.
Figure 2 is a flowchart illustrating a charging method of a power sharing electric vehicle charging system according to an embodiment of the present invention.
Figure 3 is a diagram explaining the charging control unit 40 of the power sharing electric vehicle charging system according to an embodiment of the present invention.
Figure 4 is a diagram showing an implementation example using a power sharing electric vehicle charging system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The embodiments of the present invention are provided to more completely explain the technical idea of the present invention to those skilled in the art, and the following examples can be modified into various other forms, and the embodiments of the present invention The scope of the technical idea is not limited to the following examples. Rather, these embodiments are provided to make the present disclosure more faithful and complete and to fully convey the technical idea of the present invention to those skilled in the art. In this specification, like symbols refer to like elements throughout. Furthermore, various elements and areas in the drawings are schematically drawn. Accordingly, the technical idea of the present invention is not limited by the relative sizes or spacing drawn in the attached drawings.

The vehicles referred to below may include all types of vehicles equipped with batteries. The vehicles below (shared power supply vehicles, shared power receiving vehicles, etc.) are explained as an example of plug-in electric vehicles that use the power charged in a rechargeable battery as energy. However, it is not limited to this, and in some cases, the vehicles mentioned below may be general vehicles that run on fossil fuels such as gas, gasoline, and diesel that require batteries, and may use electric motors to reduce the vehicle's fuel usage. It may be a hybrid electric vehicle used as an auxiliary power source. Additionally, the size of the vehicle is irrelevant, and the technology described below can be similarly applied not only to passenger cars, but also to vans, buses, trucks, trailers, and other special vehicles.

The power referred to below includes renewable energy. In other words, power supplied from a main power supply unit or auxiliary power supply unit other than the vehicle, and power supplied from the vehicle include power from new and renewable energy.

Figure 1 is a diagram illustrating a power sharing type electric vehicle charging system 10 according to an embodiment of the present invention.

Referring to FIG. 1, the power sharing electric vehicle charging system 10 includes a charging terminal unit 20, a main power supply unit 30, a charging control unit 40, an auxiliary power supply unit 50, and a charging management server. Includes (60).

In Figure 1, the black dotted arrow represents the signal transmission path, the black solid arrow represents the provision path for charging power and operating power, and the red solid arrow represents the provision path for shared power. The charging power refers to the power supplied from the main power supply unit 30, the operating power refers to the power supplied from the auxiliary power supply unit 50, and the shared power refers to the power supplied from the vehicles 1 and 2. refers to

The charging terminal 20 supplies charging power to a plurality of vehicles 1 and 2 to charge the vehicle, or receives shared power from a vehicle with a high power charging rate among the plurality of vehicles 1 and 2 to determine the power charging rate. This low vehicle can be charged. The charging terminal unit 20 may be configured as one terminal device connected together to the plurality of vehicles 1 and 2. Alternatively, the charging terminal unit 20 may be connected to each of the plurality of vehicles 1 and 2, and the charging control unit 40 may be composed of a plurality of terminal devices that are commonly connected. The charging terminal unit 20 may be connected to each of a plurality of vehicles 1 and 2 through a cable. The cable may include a power cable for discharging and charging the plurality of vehicles 1 and 2 and a signal cable for signal transmission. The cable may be connected using the inlet of each of the plurality of vehicles (1, 2). The charging terminal 20 may include a touch display, keyboard, push button, wireless receiving means, etc. as input means for acquiring input information, and may include a display, printer, wireless receiving means, etc. as output means for providing output information. It may include a transmission means, etc.

The main power supply unit 30 may supply the charging power to the charging terminal unit 20 to charge the plurality of vehicles. The main power supply unit 30 may be configured to include a distribution facility connected to a power supplier such as Korea Electric Power Corporation. The main power supply unit 30 and the charging terminal unit 20 are connected through a cable to supply the charging power. In normal circumstances, the main power supply unit 30 can supply power to operate the charging terminal unit 20 and the charging control unit 40. The cable includes a power transmission cable connected to the charging terminal 20 to supply power to the batteries of the plurality of vehicles 1 and 2, and an operation power cable that transmits the operation power of the charging control unit 40. It can be configured.

When the charging power is supplied from the main power supply unit 30, the charging control unit 40 operates the charging terminal unit 20 to charge each of the plurality of vehicles 1 and 2 with the charging power. Control, and when the charging power is not supplied from the main power supply unit 30, receive shared power from a vehicle with a high power charging rate among the plurality of vehicles 1 and 2 to charge the vehicle with a low power charging rate. The charging terminal 20 can be controlled. The charging control unit 40 may be connected to communicate with the charging management server 60 by wire or wirelessly. The charging control unit 40 will be described in detail with reference to FIG. 3 below.

When the charging power is not supplied from the main power supply unit 30, it is usually not in a charging state, for example, the power supply is interrupted due to a power cut by the power company, or the distribution equipment fails, malfunctions, or leaks. This includes cases where power supply is interrupted due to a power outage, or charging is impossible or takes a long time due to insufficient power supply for charging due to power peak times.

When the charging power is not supplied from the main power supply unit 30, the auxiliary power supply unit 50 provides operating power to operate the charging terminal unit 20 and the charging control unit 40, respectively, through a cable. It can be supplied to the charging terminal unit 20 and the charging control unit 40 through. The auxiliary power supply unit 50 may include any device capable of producing or storing and providing power on its own, for example, including at least one of a generator, battery, uninterruptible power supply (UPS), and solar cell. can do. The auxiliary power supply unit 50 is optional and may be omitted.

The charging management server 60 may transmit and receive management information signals for the plurality of vehicles 1 and 2 from the charging control unit 40 wired or wirelessly. The management information signal may include vehicle information, user information, charging information, and payment information related to the plurality of vehicles 1 and 2. The charging management server 60 may communicate with users of the plurality of vehicles 1 and 2 by wire or wirelessly. The charging management server 60 may include various communication devices, for example, communicating through networks such as mobile communication networks (WCDMA, GSM, LTE, 5G, 6G, etc.), wireless Internet (WiBro, WiFi, etc.) Smartphone, cellular phone, PCS phone (Personal Communications Services phone), synchronous/asynchronous IMT-2000 (International Mobile Telecommunication-2000) capable of wireless communication, personal digital assistant (PDA) ), a WAP phone (Wireless application protocol phone), a mobile play-station, or other portable or mobile terminals such as a PMP (Portable Multimedia Player), and in some cases, a laptop PC, desktop PC, or palm It may include various electronic devices or devices throughout society for home or business use that can communicate with a PC (Palm Personal Computer) or other electronic devices. The charging management server 60 is optional and can be omitted.

Figure 2 is a flowchart illustrating a charging method of a power sharing electric vehicle charging system according to an embodiment of the present invention.

Referring to FIG. 2, the charging method of the power sharing electric vehicle charging system includes detecting whether main power is supplied to the plurality of vehicles (S10); If the main power is not supplied, comparing the charging rates of each of the plurality of vehicles (S20); Selecting a vehicle with a high power charging rate among the plurality of vehicles as a shared power supply vehicle to supply shared power, and selecting a vehicle with a low power charging rate as a shared power charging vehicle to be supplied and charged with the shared power (S30) ); Determining the amount of shared power supplied from the shared power supply vehicle to the shared power charging vehicle (S40); and a step (S50) of supplying shared power from the shared power supply vehicle to the shared power charging vehicle. The charging method of the power sharing type electric vehicle charging system further includes the step (S60) of charging the shared power charging vehicle an amount for the shared power supply amount and processing reverse charging for the shared power supply vehicle. can do.

Figure 3 is a diagram explaining the charging control unit 40 of the power sharing electric vehicle charging system according to an embodiment of the present invention.

Referring to FIG. 3, the charging control unit 40 is a normal charging control unit 410 that performs charging in a normal situation in which power is supplied from the main power supply unit 30 and power is supplied from the main power supply unit 30. It may include a shared charging control unit 420 that performs charging using shared power in an emergency situation where power is not available.

When the charging power is supplied from the main power supply unit 30, the normal charging control unit 410 controls the charging terminal unit 20 to charge each of the plurality of vehicles 1 and 2 with the charging power. can do. The normal charging control unit 410 includes a vehicle confirmation processing unit 411, which checks each of the plurality of vehicles 1 and 2 connected to the charging terminal 20 in a normal situation, and the charging terminal 20. A vehicle charging processing unit 412 that controls and starts, proceeds, and ends the process of charging the plurality of vehicles 1 and 2 with the charging power supplied from the main power supply unit 30, and the plurality of vehicles It may include a charging processing unit 413 that processes charging fees corresponding to the charging power charged to each of the fields 1 and 2. The charging and billing processing unit 413 may transmit and receive management information signals for the billing with the charging management server 60 by wire or wirelessly.

The normal charging control unit 410 may include a charging algorithm to perform efficient charging. For example, while supplying charging power in CC (Constant Current) mode for charging, when the battery is charged to about 80%, It may include a charging algorithm that changes to CV (Constant Current) mode to fully charge the battery. For example, it may include a charging algorithm that first supplies a high current that the battery can tolerate and then gradually lowers the current. However, the technical idea of the present invention is not limited to this, and the normal charging control unit 410 may include a charging algorithm that can attempt charging in various patterns to ensure battery stability and efficient and rapid charging. there is. Additionally, the shared charging control unit 420 may also include the charging algorithm described above.

If the charging power is not supplied from the main power supply unit 30, the shared charging control unit 420 receives shared power from a vehicle with a high power charging rate among the plurality of vehicles 1 and 2 and charges the charging power with a low power charging rate. The charging terminal unit 20 can be controlled to charge the vehicle.

The shared charging control unit 420 includes a main power supply detection unit 421, a power charging rate comparison unit 422, a shared power supply vehicle selection unit 423, a shared power supply amount determination unit 424, and a shared power supply processing unit ( 425), and may include a shared power billing processing unit 426.

The main power supply detection unit 421 can detect whether main power is supplied to the plurality of vehicles 1 and 2 from the main power supply unit 30 and perform the step (S10). there is. When it is detected that the main power is being supplied, charging may proceed to the plurality of vehicles 1 and 2 by the normal charging control unit 410 as described above. If the main power supply is not detected, charging may be performed on the plurality of vehicles 1 and 2 by the shared charging control unit 420 as follows.

If the main power is not supplied, the power charging rate comparison unit 422 can compare the power charging rates of the plurality of vehicles 1 and 2 with each other and perform the step S20. The plurality of vehicles 1 and 2 may transmit information about each power charging rate to the power charging rate comparison unit 421. The power charging rate can be provided in various ways. For example, the power charging rate may be provided as a relative value by setting the maximum power charging capacity of each of the plurality of vehicles 1 and 2 to 100% and comparing the current power charging amount to the maximum power charging capacity. there is. For example, if the maximum power capacity of the battery of the vehicle 1 is 70 kWh and the current power charge amount is 56 kWh, the power charge rate of the vehicle 1 may be 80%. If the maximum power capacity of the battery of the vehicle 2 is 50 kWh and the current power charge amount is 10 kWh, the power charging rate of the vehicle 1 may be 20%. The power charge rate comparison unit 422, for example, calculates the remaining power amount of the battery of each of the plurality of vehicles 1 and 2 (state of charge, SOC, which may be transmitted as a %) and constant current value of the battery, etc. Status information can be acquired and used to compare power charging rates.

The shared power supply vehicle selection unit 423 shares the vehicle with the high power charging rate among the plurality of vehicles 1 and 2 based on the result of comparing the power charging rate from the power charging rate comparison unit 421. The shared power supply vehicle (1) to supply power can be selected, and the vehicle with the low power charging rate can be selected as the shared power charging vehicle (2) to be charged by receiving the shared power. As described above, the vehicle (1) with a power charging rate of 80% is selected as the shared power supply vehicle (1), and the vehicle (2) with a power charging rate of 20% is selected as the shared power charging vehicle (2). can be selected

The shared power supply amount determination unit 424 may determine the shared power supply amount supplied from the shared power supply vehicle 1 to the shared power charging vehicle. The shared power supply amount can be determined in various ways. For example, the shared power supply amount may be determined to reach an average power charging rate that is the average of the power charging rate of the shared power supply vehicle 1 and the power charging rate of the shared power charging vehicle 2. For example, the shared power supply amount is adjusted so that the shared power supply vehicle (1) with a power charging rate of 80% and the shared power receiving vehicle (2) with a power charging rate of 20% reach a power charging rate of 50%, which is the average value. You can decide. Alternatively, the shared power supply amount may be determined as the power supply amount preset by the user of the shared power supply vehicle 1. Alternatively, the power supply amount preset by the user of the shared power charging vehicle 2 may be determined as the shared power supply amount. Alternatively, the shared power supply amount may be determined by inquiring in real time to the user of the shared power supply vehicle 1 or the user of the shared power charging vehicle 2. The user of the shared power supply vehicle 1 and the user of the shared power charging vehicle 2 can directly set the power supply amount, or set the power charging rate and calculate the power supply amount based on this.

The shared power supply processing unit 425 may control the charging terminal unit 20 to supply shared power of the shared power supply amount from the shared power supply vehicle 1 to the shared power charging vehicle 2 for charging. there is. The shared power supply vehicle (1) supplies the shared power through a cable connected for charging as the built-in battery is discharged, and the shared power charging vehicle (2) receives the shared power through a cable connected for charging. This allows the built-in battery to be charged. That is, the current for supplying shared power may flow from the shared power supply vehicle 1 through the charging terminal unit 20 to the shared power charging vehicle 2, as indicated by the red solid line in FIG. 1. For this charging, the charging control unit 40 can control the charging terminal unit 20. The shared power supply processing unit 425 may actually provide shared power to match the determined shared power supply amount and measure the difference between the determined shared power supply amount and the actually provided shared power supply amount. When charging is completed, the shared power supply processing unit 425 may provide charging completion information including floor electricity amount information.

The shared power supply processing unit 425 uses the power supply standard built into the power sharing electric vehicle charging system 10 or uses the power supply standard preset by the users of the plurality of vehicles 1 and 2. When a situation requiring shared power occurs, the above-described shared power supply process can be performed using the power supply standard obtained by inquiring with the users of the plurality of vehicles 1 and 2.

The shared power charging processing unit 426 charges the shared power charging vehicle (2) with the amount for the shared power supply and processes a reverse charge for the shared power supply vehicle (1). can do. The shared power charging processing unit 426 may calculate charging information and reverse charging information according to the charging amount information included in the charging completion information. The shared power charging processing unit 426 can process reverse charging to the user of the shared power supply vehicle (1) according to the reverse charging information, and charges the user of the shared power charging vehicle (2) according to the charging information. It can be handled. The shared power charging processing unit 426 may transmit and receive management information signals for the charging information and the reverse charging information with the charging management server 60 by wire or wirelessly. The user of the shared power charging vehicle 2 must pay an amount for the shared power supply, and the user of the shared power supply vehicle 1 may receive an amount for the shared power supply. Alternatively, the shared power supply vehicle 1 may process the charging fee to be paid by charging by the power sharing electric vehicle charging system 10 by deducting a reverse charge for the shared power.

The unit price of the charging information and the reverse charging information may be the same unit price as the charging power supplied from the main power supply unit, may be a fixed unit price, or may be higher or lower than the unit price of the reverse charging. . The above unit price is illustrative, and the technical idea of the present invention is not limited thereto.

Figure 4 is a diagram showing an implementation example using a power sharing electric vehicle charging system according to an embodiment of the present invention.

Referring to FIG. 4, a first vehicle (A), a second vehicle (B), a third vehicle (C), and a fourth vehicle (D) are connected to the power sharing electric vehicle charging system 10, Indicates charging changes when charging power is not supplied from the main power supply. The first vehicle (A), the second vehicle (B), and the third vehicle (C) supply shared power because the current charging rate is higher than the minimum charging rate setting, and the fourth vehicle (D) is currently Since the charging rate is lower than the minimum charging rate setting, charge using shared power. Specifically, the first vehicle (A) currently has a charging rate of 80% and the minimum charging rate setting is 80%, so it does not supply shared power, so the shared power supply amount is 0%. The current charging rate of the second vehicle (B) is 80%, and the minimum charging rate setting is 60%, so the shared power supply amount is 20%. The current charging rate of the third vehicle (C) is 80%, and the minimum charging rate setting is 40%, so the shared power supply amount is 40%. The current charging rate of the fourth vehicle (D) is 20%, and the minimum charging rate setting is 80%, so the shared power charging amount is 60%.

Additionally, the technical idea of the present invention can be extended to a power sharing device that shares the power charged in the battery without being connected to the main power supply.

The power sharing device may include the charging terminal 20, the shared charging control unit 420, and the auxiliary power supply unit 50. The power sharing device may further include the charging management server 60. The shared charging control unit 420 may include the power charging rate comparison unit 422, the shared power supply vehicle selection unit 423, the shared power supply amount determination unit 424, and the shared power supply processing unit 425. You can. The shared charging control unit 420 may further include the shared power charging processing unit 426. The power sharing device can charge the shared power receiving vehicle (2) using the shared power provided by the shared power supply vehicle (1).

The technical idea of the present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible without departing from the technical idea of the present invention. It will be clear to those skilled in the art.

The technical idea of the present invention can be used in an electric vehicle charging system and a power sharing electric vehicle charging method.

1: Shared power supply vehicle,
2: The shared power charging vehicle,
10: Power sharing electric vehicle charging system,
20: charging terminal,
30: Main power supply,
40: charging control unit,
50: auxiliary power supply,
60: charging management server,
410: Normal charging control unit,
411: Vehicle confirmation processing unit,
412: vehicle charging processing unit,
413: Charging billing processing unit,
420: Shared charging control unit,
421: main power supply detection unit,
422: Power charging rate comparison unit,
423: Shared power supply vehicle selection unit,
424: Shared power supply amount determination unit,
425: Shared power supply processing unit,
426: Shared power billing processing unit,

Claims (15)

A charging terminal that supplies charging power to a plurality of vehicles to charge them, or receives shared power from a vehicle with a high power charging rate among the plurality of vehicles to charge a vehicle with a low power charging rate;
a main power supply unit that supplies the charging power to charge the plurality of vehicles to the charging terminal; and
When the charging power is supplied from the main power supply, the charging terminal is controlled to charge each of the plurality of vehicles with the charging power, and when the charging power is not supplied from the main power supply, the plurality of vehicles are controlled. Including, a charging control unit that receives shared power from a vehicle with a high power charging rate and controls the charging terminal to charge a vehicle with a low power charging rate.
Power sharing electric vehicle charging system. According to claim 1,
The charging control unit controls the charging terminal to charge a vehicle with a low power charging rate by receiving shared power from a vehicle with a high power charging rate among the plurality of vehicles when the charging power is not supplied from the main power supply unit. Including a charging control unit,
Power sharing electric vehicle charging system. According to claim 2,
The shared charging control unit,
a main power supply detection unit that detects whether main power is supplied to the plurality of vehicles from the main power supply unit;
a power charging rate comparison unit that compares the respective power charging rates of the plurality of vehicles;
Among the plurality of vehicles, a vehicle with a high power charging rate is selected as a shared power supply vehicle to supply shared power, and a vehicle with a low power charging rate is selected as a shared power charging vehicle to be charged by receiving the shared power. vehicle selection unit;
a shared power supply amount determination unit that determines a shared power supply amount supplied from the shared power supply vehicle to the shared power charging vehicle; and
A shared power supply processing unit that controls the charging terminal to supply shared power of the shared power supply amount from the shared power supply vehicle to the shared power charging vehicle for charging.
Power sharing electric vehicle charging system. According to claim 3,
The shared charging control unit,
Further comprising a shared power charging processing unit that processes the amount for the shared power supply to the shared power charging vehicle and processes reverse charging for the shared power supply vehicle,
Power sharing electric vehicle charging system. According to claim 3,
The power charging rate is provided as a relative value by setting the maximum power charging capacity of each of the plurality of vehicles to 100% and comparing the current power charging amount to the maximum power charging capacity,
Power sharing electric vehicle charging system. According to claim 3,
The shared power supply amount is determined to reach an average power charging rate that averages the power charging rate of the shared power supply vehicle and the power charging rate of the shared power charging vehicle,
Power sharing electric vehicle charging system. According to claim 3,
The shared power supply amount is determined by the power supply amount preset by the user of the shared power supply vehicle, or determined by the power supply amount preset by the user of the shared power charging vehicle,
Power sharing electric vehicle charging system. According to claim 1,
The charging control unit further includes a normal charging control unit that controls the charging terminal unit to charge each of the plurality of vehicles with the charging power when the charging power is supplied from the main power supply unit.
Power sharing electric vehicle charging system. According to claim 8,
The normal charging control unit,
a vehicle confirmation processing unit that checks each of the plurality of vehicles connected to the charging terminal;
a vehicle charging processing unit that controls the charging terminal to start, proceed, and end a process of charging each of the plurality of vehicles with the charging power supplied from the main power supply unit; and
A charging and charging processing unit that processes charging fees corresponding to the charging power charged to each of the plurality of vehicles.
Power sharing electric vehicle charging system. According to claim 1,
When the charging power is not supplied from the main power supply, an auxiliary power supply unit that supplies operating power to operate the charging terminal unit and the charging control unit, respectively, to the charging terminal unit and the charging control unit.
Power sharing electric vehicle charging system. According to claim 10,
The auxiliary power supply unit includes at least one of a generator, a battery, an uninterruptible power supply (UPS), and a solar cell.
Power sharing electric vehicle charging system. According to claim 1,
Further comprising; a charging management server that transmits and receives management information signals for the plurality of vehicles from the charging control unit,
Power sharing electric vehicle charging system. According to claim 1,
The charging terminal unit is composed of one terminal device connected together to the plurality of vehicles, or each connected to the plurality of vehicles, and the charging control unit is composed of a plurality of terminal devices connected in common,
Power sharing electric vehicle charging system. Detecting whether main power is supplied to a plurality of vehicles;
comparing charging rates of each of the plurality of vehicles when the main power is not supplied;
selecting a vehicle with a high power charging rate among the plurality of vehicles as a shared power supply vehicle to supply shared power, and selecting a vehicle with a low power charging rate as a shared power charging vehicle to be supplied and charged with the shared power;
Determining the amount of shared power supplied from the shared power supply vehicle to the shared power charging vehicle; and
Comprising: supplying and charging shared power of the shared power supply amount from the shared power supply vehicle to the shared power charging vehicle;
Power sharing electric vehicle charging method. According to claim 14,
Further comprising the step of charging the shared power charging vehicle an amount for the amount of shared power supply and reverse charging the shared power supply vehicle.
Power sharing electric vehicle charging method.