KR101855613B1 - Charging and discharging device for secondary battery - Google Patents

Abstract

The present invention relates to a charging and discharging device capable of variously applying a fee based on time. According to an embodiment of the present invention, the charging and discharging device comprises: an authentication requesting unit which requests authentication of a vehicle to be charged or discharged to an integrated server; a charging and discharging operation unit which charges and discharges the vehicle in cooperation with a battery control unit installed in the vehicle when the authentication is confirmed; a measurement unit which comprises a first measurement module for measuring the amount of power transmitted to charge the vehicle and a second measurement module for measuring the amount of power transmitted to discharge the vehicle; an event processing unit which controls the charging and discharging operation unit to convert charging and discharging of the vehicle when an event signal is received from the integrated server or a terminal of a vehicle owner; and a fee calculation unit which calculates a fee of a first difference value, which is the difference between a first measurement value and a second measurement value measured by the first and second measurement modules in the integrated server. The event processing unit separates the first and second measurement values, measured by the measurement unit, from measurement values of previous times with respect to a time point of conversion as reference and transmits the first and second measurement values to the fee calculation unit.

Description

{CHARGING AND DISCHARGING DEVICE FOR SECONDARY BATTERY}

In an embodiment of the present invention, an accurate charge can be calculated by summing the amount of electric power that is unintentionally consumed when measuring the amount of electric power due to charging / discharging of a vehicle, and when a power peak or a disaster occurs, Discharge device capable of being utilized as an emergency power source.

In the past, automobiles mainly using fossil energy such as gasoline, diesel, LPG, and LNG were mostly used, but demand for electric vehicles has been explosively increasing along with depletion of fossil fuels.

With the popularization of electric vehicles, it is expected to build a large-scale rechargeable battery (battery) storage infrastructure, and there is a need for an emergency power replacement system that operates electric energy charged in electric vehicles as emergency power.

For example, adding nuclear power plants continuously whenever power peak conditions occur is social enough to be regarded as the beginning of a new disaster. The construction of the power plant is delayed due to the budget of around 3 trillion won per plant and the opposition of local residents This is because there is a problem that when an actual power peak situation occurs, it can not cope immediately.

In addition, the power source, for example, KEPCO, can not efficiently operate the electric energy in each region (region) when the electric power supply is impossible or unreliable due to various disasters or power peaks, so that the large secondary battery storage infrastructure is utilized It is necessary to plan.

Accordingly, when a power peak or a disaster occurs, a system for utilizing an electric vehicle equipped with an electric vehicle charge / discharge station installed in a nationwide area, a public recharging facility, or a secondary battery as an emergency power source is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and apparatus for charging and discharging a vehicle, which can sum up electric power consumed and electric power consumed unintentionally to calculate an accurate charge, Charge / discharge device capable of applying charges differently according to time.

Another object of the present invention is to enable emergency vehicles to be used as an emergency power source by converting a charged vehicle into a discharge according to a response of a driver when a power peak or a disaster occurs, thereby urgently responding to a disaster situation.

It is still another object of the present invention to provide an apparatus and method for accurately calculating the amount of electric power consumed by the charging / discharging device itself and the amount of electric power consumed by charging / discharging the vehicle.

According to another aspect of the present invention, there is provided a charging / discharging apparatus including an authentication request unit for requesting authentication of a vehicle to be charged / discharged by an integrated server, A first measurement module for measuring an amount of electric power transmitted for charging the vehicle, and a second measurement unit for measuring an amount of electric power transmitted for discharging the vehicle, An event processing unit for controlling the charging and discharging operation unit to switch charging and discharging of the vehicle when receiving an event signal from the integrated server or the paying terminal, And a charge calculating unit for calculating a charge for the first difference value corresponding to a difference between the first and second measured values measured by the first and second measured values, Processing unit is characterized by separating from the measuring value of the previous time at the time is switched to the first and second measurement values measured by the measurement section to the transfer of charge to the settlement section.

According to an example of the present invention, when the event received from the integration server is a discharge command including an instruction time, the event processing unit delivers an instruction of the integration server to the borrower terminal, And the instructions of the integration server are executed.

According to an example of the present invention, the event processing unit discharges the battery of the vehicle to a preset value when performing the instruction of the integration server, and controls the charge / discharge operation unit And a control unit.

According to another aspect of the present invention, there is provided a communication system including a communication unit configured to communicate with the terminal, wherein the communication unit receives an event signal from the integration server, or when the remaining amount of the vehicle battery is less than a predetermined level, And transmits a message to the borrower terminal to confirm whether or not to approve the switching of the discharge.

According to an example of the present invention, the charge settlement unit receives measurement values from a separate metering device that measures power consumption of the charge / discharge device itself, and calculates a charge other than the calculated charge do.

The charging and discharging apparatus according to at least one embodiment of the present invention configured as described above can correct the amount of electric power consumed and the amount of electric power consumed unintentionally to settled the correct charge when discharging the vehicle, Since the measurement values of the time before and after the time point are separated from each other and the fare is settled, the charge can be applied differently by time.

In addition, when a power peak or a disaster occurs, the car being charged can be converted into a discharge according to the response of the carousel and utilized as an emergency power source, thereby enabling emergency situations to be dealt with urgently.

In addition, there is an effect that charges can be settled by accurately dividing the amount of power consumed in the charging / discharging device itself and the amount of power consumed in charging / discharging the vehicle.

Also, since the verification of the code information is requested and confirmed before the charging / discharging operation of the vehicle, it is possible to prevent the unauthorized and unauthorized charging / discharging operation.

FIG. 1A is a charge-discharge system according to an embodiment of the present invention, and FIG. 1B is a conceptual diagram of a charge-discharge system in FIG. 1A.
2 is a configuration diagram of the charge / discharge device.
FIG. 3A is an example of vehicle information for code information, and FIG. 3B is an example of a billing and reverse billing table.
4 is an operation process of the charge / discharge device.
5 is an operation process of the event processing unit.

Hereinafter, a charge-discharge device according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

It is to be understood that the drawings herein illustrate conceptual aspects of exemplary circuits embodying the principles of the invention. That is, it should be understood that the functions shown in the figures may be substantially represented on a computer-readable medium and performed by various processes performed by the computer or processor, whether or not the computer or processor is explicitly shown.

And, each function can be provided not only with dedicated hardware, but also with the use of hardware capable of executing software in connection with appropriate software. When provided by a processor, the functions may be provided by a single dedicated processor, a single shared processor, or a plurality of individual processors, some of which may be shared.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1A is a charge-discharge system according to an embodiment of the present invention, and FIG. 1B is a conceptual diagram of a charge-discharge system in FIG. 1A.

1A and 1B, a charging and discharging system 1000 includes a battery controller 100, a terminal 110, a charging and discharging device 200, an integrated server 300, a metering device 400, (450) and a power supply (500).

The battery control unit 100 is installed inside each vehicle and stores code information to be issued from the integration server 300. The battery control unit 100 receives an operation signal from the charging and discharging device 200 to charge the battery 1 mounted on the vehicle Or discharging electric power.

Here, the code information includes any one of a unique identification number, an identification key, an identification ID, and an identification card that are previously issued from the integration server 300.

In the present invention, the vehicle includes an electric vehicle equipped with a battery or an e-mobility device using a secondary battery.

As shown in FIG. 3A, when the car information is registered in the integration server 300 through the carousel terminal 110 owned by the car owner, the integration server 300 issues code information corresponding to the car information, To the terminal 110. That is, the integration server 300 includes a storage server (not shown) for storing and managing vehicle information for code information.

Here, the vehicle information may be information including at least one of the following: the carousel information, the vehicle type information, the license plate information, the battery information, and the charge / discharge history information according to the code information.

According to the embodiment, the battery control unit 100 may be software included in the electronic control unit (ECU) of the vehicle.

Next, the charging and discharging device 200 may be a device disposed in an electric vehicle charging station (not shown) or a general household, and connected to a vehicle through a power line to charge and discharge.

Hereinafter, the charging / discharging device 200 will be described more specifically with reference to FIG.

Fig. 2 is a configuration diagram of the charge / discharge device of Figs. 1A and 1B.

1A and 2B, the charge and discharge apparatus 200 includes an authentication request unit 210, a charge and discharge operation unit 220, a measurement unit 230, an event processing unit 240, and a charge settlement unit 250 do.

In the present invention, each part may be a detailed name constituting the control part.

First, when the authentication request unit 210 receives the code information for charging / discharging from the vehicle, the authentication request unit 210 may request the integration server 300 to authenticate the code information.

More specifically, when the authentication request unit 210 receives the code information for charging / discharging from the vehicle connected through the power line, the authentication request unit 210 may request the integration server 300 to authenticate the code information.

At this time, the integration server 300 is requested to authenticate the code information through the network 50, and can authenticate the vehicle according to the detection of the vehicle information corresponding to the code information.

According to the embodiment, the authentication request unit 210 further includes a photographing apparatus (not shown) for photographing the image information of the vehicle when the vehicle is charged and discharged, The integration server 300 may determine whether the image information and the vehicle information are identical or not, and may perform the secondary authentication on the identity of the vehicle information.

Next, when the authentication of the integration server 300 is confirmed, the charging / discharging operation unit 220 can interlock with the battery control unit 100 mounted on the vehicle, thereby charging / discharging the vehicle.

In the present invention, charging / discharging means any operation of charging or discharging. Particularly, discharging is a function of discharging the battery of the electric vehicle or the electric energy stored in the secondary battery again, that is, Means that electric power is returned, and charging means that electric power of the vehicle is transmitted.

That is, the charging / discharging operation unit 220 can charge and discharge the battery 10 of the vehicle by interlocking with the battery control unit 100 mounted on the vehicle so as to charge and discharge the vehicle.

At this time, the charging / discharging operation unit 220 interlocks with the battery control unit 100 of the vehicle, and transmits the power stored in advance in the power storage device 450 or the power supplied from the power supply source 500 to the vehicle connected through the power line The battery 10 of the vehicle can be discharged by charging the battery 10 of the vehicle and storing the power from the battery 10 of the vehicle through the power line and storing the power in the power storage device 450. [

Here, the power storage device 450 is an uninterruptible power supply (UPS) provided separately, and the power supply source 500 is a power supply receiving power from a power plant managed by KEPCO.

According to the embodiment, the charge / discharge operation unit 220 may discharge the discharge to the predetermined limit capacity value so that the vehicle can travel a certain distance, and then stop the discharge.

Next, the measuring unit 230 may include a first measuring module 231 for measuring the amount of electric power transmitted for charging the vehicle and a second measuring module 233 for measuring the amount of electric power to be delivered for discharging the vehicle .

More specifically, the measuring unit 230 can measure the amount of electric power to be transferred and transported for charging / discharging the vehicle using the first measuring module 231 and the second measuring module 233, respectively.

For example, when charging the vehicle, since the charging amount 99 W and the discharging amount 1 W can coexist at the same time in accordance with the state of the electric power line, the surrounding environment, or the battery instability state, the measuring unit 230 measures the first measurement module 231 And the amount of power 1W conveyed through the second measurement module 233 can be measured.

The event processor 240 may control the charging / discharging operation unit 220 to switch the charging / discharging of the vehicle when the event signal is received from the integration server 300 or the sink terminal 110.

For example, when the borrower desires to switch to discharge due to urgent business during charging, the borrower can send an event signal through the borrower terminal 110 or transmit an event signal from the borrower terminal 110 through the integration server 300 have.

On the other hand, since the charges for the measured values are different from each other, as shown in the billing and reverse billing table shown in FIG. 3B, the event processing unit 240 may calculate the difference between the first and second measured values Can be separated from the measured values measured by the measuring unit 230 of the previous time on the basis of the measured values and transmitted to the charge calculating unit 250.

In other words, since the charging / discharging charge is settled on the basis of the charging and reverse charging tables, the event processing unit 240 sets the first and second measured values after the switching time based on the switching time, From the measurement values measured by the measurement unit 230, and transmits the measured values to the charge settlement unit 250. [

According to the embodiment, when the event received from the integration server 300 is a discharge command including the instruction time due to the power peak state or the national power disaster state, the event processing unit 240 may instruct the integration server 300 To the terminal 110, and can follow the instructions of the integration server 300 according to the response of the borrower.

More specifically, the event processing unit 240 discharges the battery 10 of the vehicle to a predetermined value when the instruction of the integration server 300 is executed, and controls the charging / (220).

Next, the charge settlement unit 250 transmits the difference value between the first and second measured values measured by the first measurement module 231 and the second measurement module 233 to the integration server 300, The fee can be calculated.

According to the embodiment, the charge calculating unit 250 may calculate a difference value between the first and second measured values before the switching to the integration server 300 and a difference value between the first and second measured values after the switching point And the fee can be calculated from the difference value, respectively.

Meanwhile, the charge settlement unit 250 may receive measurement values from a separate metering device 400 that measures the power consumption of the charging and discharging device 200 itself, and may calculate a charge different from the calculated charge.

The charging and discharging apparatus 200 further includes a communication unit 260 configured to communicate with the terminal 110. The communication unit 260 receives the event signal from the integration server 300 , Or when the remaining amount of the vehicle battery 10 is less than a predetermined level, it is possible to transmit a message to the borrowing terminal 110 so as to confirm approval or disapproval of charging / discharging.

Accordingly, when charging / discharging the actual vehicle, the charging / discharging device 200 can sum up the intended amount of electric power and the amount of electric power consumed unintentionally to calculate the correct charge. Since the measurement values are separated from each other and the fare is settled, it is possible to apply the charge applied differently according to the time.

4 is an operational process of the charge / discharge device of FIG.

Referring to FIGS. 1A to 4, the authentication request unit 210 receives code information for charge and discharge from a vehicle connected to the vehicle through a power line (S100).

More specifically, when the authentication request unit 210 is connected to the vehicle through a power line, the code request unit 210 may receive the code information stored in the battery control unit 100 to perform charging and discharging.

At this time, the authentication request unit 210 may request authentication of the vehicle to be charged / discharged to the integration server 300 (S110).

When the authentication of the integrated server 300 is confirmed, the charging / discharging operation unit 220 can interlock with the battery control unit 100 installed in the vehicle to charge / discharge the vehicle (S120).

At this time, the measuring unit 230 can measure the amount of electric power transmitted and carried for charging / discharging the vehicle using the first measuring module 231 and the second measuring module 233 (S130).

The event processing unit 240 may control the charging / discharging operation unit 220 to switch the charge / discharge of the vehicle when the event signal is received from the integration server 300 or the terminal 110 (S150).

At this time, the event processing unit 240 may separate the first and second measured values after the switching time from the measured values of the previous time on the basis of the switching time and transmit the separated first and second measured values to the charge calculating unit 250 (S160) .

If the event processing unit 240 does not receive an event signal from the integration server 300 or the borrowing terminal 110 in step S140, the charge settlement unit 250 transmits the event signal to the integration server 300 through the first measurement module 231 and the second measured value measured by the second measurement module 233 in step S170 and calculates the charge from the difference value in step S180.

Thereafter, the charge settlement unit 250 transmits a difference value between the first and second measured values after switching to the integration server 300 (S190), and calculates the charge from the difference value (S200) .

Accordingly, when charging / discharging the actual vehicle, the charging / discharging device 200 can sum up the intended amount of electric power and the amount of electric power consumed unintentionally to calculate the correct charge. So that the charge can be applied differently according to time.

5 is an operation process of the event processing unit of Fig.

1 to 5, the event processing unit 240 may determine whether the received event is a discharge command including an instruction time when receiving an event signal from the integration server 300 (S300) (S310) .

At this time, when the received event is a discharge command including the instruction time, the event processing unit 240 delivers an instruction of the integration server 300 to the borrowing terminal 110 (S320) Upon receipt of the borrower's response from the borrower terminal, the integration server 300 can execute the instructions (S330).

That is, due to a national disaster situation or a power peak, when the event processing unit 240 receives the discharge command including the instruction time from the integration server 300, the event server 240 instructs the integration server 300 ). ≪ / RTI >

More specifically, the event processor 240 discharges the battery 10 of the vehicle to a preset value (S340) when executing the instruction of the integration server 300, The charge / discharge operation unit 220 may be controlled (S350).

Meanwhile, the event processing unit 240 may control the charging / discharging operation unit 220 to switch the charging / discharging of the vehicle when the received event is not a discharging command including the instruction time (S360).

For example, when the borrower desires to charge the vehicle again due to a sudden problem during the discharge of the vehicle, the event processing unit 240 receives an event other than a discharge command including the instruction time from the borrower terminal 110, Via the integration server 300. [

Accordingly, when the electric power peak or a disaster occurs, the charging / discharging device 200 has an effect that it can be used as an emergency power source by switching the charging vehicle to discharge in accordance with the response of the car.

The charging and discharging apparatus described above can be applied to a configuration and a method of the embodiments described above in a limited manner, but the embodiments can be modified so that all or some of the embodiments are selectively combined do.

10: Battery
100: Battery control section
110: Borrower terminal
200: charge / discharge device
210:
220: charge / discharge operation section
230:
231: First measurement module
233: Second measurement module
240: Event processor
250: Charge settlement department
260:
300: Integration Server
400: Weighing device
450: Power storage device
500: power source
1000: charge / discharge system

Claims (5)

An authentication request unit for requesting authentication of a vehicle to be charged / discharged by the integrated server;
A charging / discharging operation unit interlocked with a battery control unit mounted on the vehicle to charge / discharge the vehicle when the authentication is confirmed;
A measuring unit including a first measuring module for measuring an amount of electric power transmitted for charging the vehicle and a second measuring module for measuring an amount of electric power transmitted for discharging the vehicle;
An event processor for controlling the charging / discharging operation unit to switch charging and discharging of the vehicle when receiving an event signal from the integrated server or the paying terminal;
A charge calculating unit for calculating a first charge for a first difference corresponding to a difference between the first and second measured values measured by the first and second measurement modules; And
And a communication unit configured to communicate with the borrower terminal, the charge /
Wherein the communication unit transmits a message to the borrower terminal when receiving an event signal from the integration server or when the remaining amount of the battery mounted in the vehicle is less than a predetermined level,
Wherein the event processing unit separates the first and second measured values measured by the measuring unit from the measured values of the previous time on the basis of a time when the measured values are switched to each other,
Wherein the charge-
Receiving measurement values from a separate metering device for measuring the power consumption of the charge / discharge device itself, calculating a second charge different from the calculated charge,
The event processing unit,
When the event received from the integration server is a discharge command including an instruction time, transfers an instruction of the integration server to the borrower terminal, implements the instruction of the integration server according to the response of the borrower, Discharging to a set value, and controlling the charging / discharging operation unit to shut off the charging / discharging until the indicated time,
Wherein the controller controls the charge / discharge operation unit so that the charge / discharge of the vehicle is switched according to the received event when the event received from the integration server is not a discharge command including the instruction time.

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