KR20110044006A - Managing system for charging a electromobile and method thereof - Google Patents

Abstract

PURPOSE: A management system for charging an electric mobile and a method thereof are provided to charge electricity for a low electric fee time zone by using a general distribution network of a home or a company. CONSTITUTION: An electric mobile(1) is driven by using the charged electricity, and a charging unit(10) is installed inside the electric mobile to charge the electric mobile with external electricity. A sensor unit(20) is installed in the electric mobile in order to sense the power consumption charged through the charging unit and an electric fee. A communication network(60) is installed at a distribution network to supply electric power, and receives the signal for the power amount and the electric fee through the wired/wireless communication with the sensor. A central control unit(70) collectively controls the sensor and the charging unit based on the wired/wireless communication with the communication network.

Description

Electric vehicle charging management system and charging management method {MANAGING SYSTEM FOR CHARGING A ELECTROMOBILE AND METHOD THEREOF}

The present invention relates to an electric vehicle charging management system and a charging management method. More specifically, an electric vehicle charging capable of charging and charging management in real time regardless of a charging place of an electric vehicle, which is an environmentally friendly vehicle, by interactively communicating with a power supply network. A management system and a charge management method.

Recently, due to the problem of exhaustion of fossil fuels and air pollution caused by excessive use of fossil fuels, researches and developments on the use of renewable energy and eco-friendly transportation are being actively conducted worldwide.

Among these eco-friendly vehicles, electric vehicles do not emit any air pollutants during operation, and do not cause noise pollution, and thus automobile manufacturers around the world are rushing to market. In addition, countries around the world are making efforts to develop and install electric vehicle charging systems for the dissemination and smooth use of eco-friendly electric vehicles.

Meanwhile, advanced countries, including Korea, are developing and implementing a smart grid, a new power system that can effectively manage the grid. Smart Grid is called 'Smart Electricity' as a next-generation power grid for integrating IT technology into the existing power grid and maximizing energy efficiency by efficiently real-time information exchange between power providers and consumers in both directions.

The Smart Grid aims to reduce greenhouse gas emissions by increasing energy efficiency, reducing energy waste, and reducing energy dependence on fossil fuels by activating distributed power sources based on renewable energy.

When the smart grid is installed, the electricity bill is changed in real time according to the power consumption, and the consumer controls the energy consumption according to the change in the electricity bill. For example, the electricity rate is lower during the late night hours when power consumption is low and the electricity rate increases during the daytime peak when people are active. Therefore, the consumers charge the electric cars by using the low night time period. . In addition, the electricity consumption scheme is reasonably managed by being charged different rates for each time period.

Therefore, there is an urgent need for the development and dissemination of an infrastructure that efficiently manages the charging and charging of electric vehicles using such a smart grid so that there is no inconvenience in distributing and using the electric vehicle.

The technical problem to be solved by the present invention is the electric vehicle charging management system capable of charging charge and charge management in real time regardless of the charging location of the electric vehicle, which is an environmentally friendly vehicle by installing a sensing unit capable of two-way communication with the power supply network in the electric vehicle; It is to provide a charge management method.

Electric vehicle charging management system according to the present invention for achieving the above-described technical problem, the electric vehicle driven using the charged electricity; A charging unit installed in the electric vehicle and configured to charge external electric to the electric vehicle; A detection unit installed in the electric vehicle and detecting an amount of power and an electric charge charged by the charging unit; A communication network installed in a distribution network for supplying electric power, and receiving a signal of electric power and electric charge by wire and wireless communication with the sensing unit; And a central controller configured to integrally control the detector and the charger using wired or wireless communication with the communication network.

In the present invention, the sensing unit has a unique ID assigned to each electric vehicle, the power line communication chip for performing power line communication with the communication network; A charge calculation unit for calculating a charged electric charge by reflecting an electric charge for each electric time for which electric current is charged in the electric vehicle and providing the calculated charge information to the power line communication chip; It is preferable to include; a display unit for displaying in real time the electric charge of the current time zone and the electric charge calculated by the rate calculation unit.

In the present invention, the power line communication chip transmits its unique ID to the central control unit through the communication network at the moment when the charging unit is connected to an external power grid, and the central control unit reads the transmitted unique ID and is a unique ID that can be charged. If charging is characterized in that to allow.

In addition, it is preferable that the central controller divides and charges an electric charge used for the power line communication chip for a predetermined period of time, so that charge and collection can be efficiently performed.

On the other hand, it is preferable that the communication network further includes a time information generation unit for receiving time information from the GPS and transmitting the time information to the detection unit, since the same time information can be applied to all the charging locations.

And the electric vehicle charging management method according to the present invention, 1) connecting the charging unit installed in the electric vehicle to the power grid is installed communication network; 2) transmitting, by the power line communication chip installed in the electric vehicle, its unique ID to the central controller using the communication network; 3) reading whether the transmitted unique ID is a charging permission ID; 4) in the case of the charge allowable ID, transmitting the electric unit price of the current time zone and the electric charge used so far to the power line communication chip; 5) charging the electric vehicle with electricity through the charging unit; And 6) after the charging is completed, the power line communication chip transmitting the charged power amount and the usage fee to the central controller.

In the electric vehicle charging management method of the present invention, if the transmitted unique ID is not the charge allowable ID as a result of step 3), the method may further include transmitting the result to the power line communication chip.

According to the electric vehicle charging management system of the present invention, the electric vehicle user can charge the electricity using a time zone with a low electric charge unit price, regardless of the place using a general distribution network installed in his home or company. In addition, it can eliminate the inconvenience of paying the electric bill every time at the charging location.

On the other hand, the power supplier can efficiently manage the charging station for using the electric vehicle by using the communication network already installed in the distribution network, and has the infrastructure for mass distribution of the electric vehicle, which is an eco-friendly vehicle. You can do it.

Hereinafter, with reference to the accompanying drawings will be described in detail a specific embodiment of the present invention.

As shown in FIG. 1, an electric vehicle charging management system according to the present embodiment includes an electric vehicle 1, a charging unit 10, a sensing unit 20, a communication network 60, and a central control unit 70. do.

First, the electric vehicle 1 is a vehicle driven using charged electricity. Since the electric vehicle 1 is a general electric vehicle, a detailed description of the detailed configuration is omitted.

As shown in FIG. 1, the electric vehicle 1 according to the present embodiment is provided with a charging unit 10, a sensing unit 20, and an electric storage unit 30. First, the charging unit 10 generally refers to a rechargeable battery installed in an electric vehicle to charge a predetermined amount of electric energy required for driving. Since the charging unit 10 is also substantially the same as the charging unit installed in a general electric vehicle, a detailed description thereof will be omitted. The electrical storage unit 30 may be provided separately or may be integrally formed with the charging unit 10.

Next, the sensing unit 20 is a component installed in the electric vehicle 1 to sense an amount of power and an electric charge charged by the charging unit 10. Unlike the general electric vehicle, the sensing unit 20 is a component that is characteristically installed in the electric vehicle 1 according to the present embodiment, and is operated when the charging unit 10 is connected to the distribution network for power charging. Two-way communication can be performed with the communication network 60 installed in the distribution network. To this end, in the present embodiment, as illustrated in FIG. 2, the sensing unit 20 includes a power line communication chip 26, a rate calculation unit (not shown), and a display unit 24.

First, the power line communication chip 26 has a unique ID assigned to each electric vehicle, and is a component that performs power line communication with the communication network 60. The power line communication chip 26 may use a general power line communication chip that can communicate through a power line, for example, XELINE power line communication chip. However, a unique ID is given to the power line communication chip 26 according to the present embodiment, and the unique ID matches a unique ID of the electric vehicle 1 in which the power line communication chip 26 is installed. That is, according to the unique number of the electric vehicle 1, that is, the production serial number or registration number, the unique ID of the power line communication chip 26 is also registered and managed together. In this embodiment, the power line communication chip has been described as an example, but any means for enabling power line communication other than the power line communication chip may be used as an alternative means.

When the charging unit 10 is connected to a power distribution network for electric charging, the power line communication chip 26 starts two-way communication with the communication network 60 installed in the power distribution network, and supplies its own ID to the power provider. To the central control unit 70. The power provider uses this unique ID to read the electric consumer, or electric vehicle. The power provider can read the unique ID of the electric consumer in real time to determine whether to allow the electric consumer to charge.

Next, the charge calculation unit is a component that calculates a charged electric charge by reflecting an electric charge for each time period in which the electric vehicle 1 is charged with current, and provides the calculated charge information to the power line communication chip 26. Since the electric vehicle charging management system according to the present embodiment manages electric charging in real time, it is possible to realize a reasonable electric charge by applying the electric charge unit price that changes for each time zone in real time. Therefore, the charge calculation unit 26 calculates the electric charge charged by applying the electric charge unit price of the current time zone using accurate time information.

And the electric charge thus calculated is displayed in real time by the display unit (24). As shown in FIG. 2, the display unit 24 includes an electric charge installed at the front of the detector 20, an electric charge of a current time zone, and an electric charge calculated by the charge calculation unit. It is displayed in real time to the car user. Of course, the display unit may be separated from the sensing unit 20 and installed near the driver's seat of the electric vehicle.

Next, the communication network 60 is installed in a distribution network for supplying power, for example, electric pole 50, and receives the information on the amount of electricity and electricity bills by power line communication with the sensing unit 20. to be. The communication network 60 is a communication network installed by the power provider in the distribution network, and may be, for example, a smart grid network. The communication network 60 allows the power supplier to interactively communicate with power consumers such as households or businesses, and communicate with each power consumer individually. In other words, the communication network 60 is already installed for efficient management of the distribution network, and the two-way communication is performed using the power line communication method with the sensing unit 20 of the electric vehicle according to the present embodiment.

In the present embodiment, it is preferable that the communication network 60 further includes a time information generator (not shown) for receiving time information from the GPS and transmitting the time information to the sensing unit 20. In the electric vehicle integrated management system according to the present embodiment, the electric charge charged in the electric vehicle may be reasonably imposed by applying the power unit price that is changed in real time. For this purpose, accurate and identical time information should be provided and applied for each electric vehicle 1. To this end, the time information generator receives standard time from a GPS satellite and provides accurate time information to the sensor 20. Based on this, each electric vehicle is provided with accurate time information of a time zone to be charged, and based on this, it is possible to apply a unit price of power for each time zone.

Next, the central control unit 70 is a component that integrates and controls the sensing unit 20 and the charging unit 10 using wired or wireless communication with the communication network 60. The central control unit 70 is a power provider side control unit, which receives information of the sensing unit 20 from the communication network 60 by using wired or wireless communication, and receives a control signal for each electric vehicle 1. It is a component for transmitting to the communication network (60). The central control unit 70 may be, for example, a central command room of the smart grid network.

Specifically, the power line communication chip 26 installed in the sensing unit 20 transmits its own ID through the communication network 60 at the moment when the charging unit 10 is connected to the charging jack 40 of the external power grid. Transfer to the central control unit 70, the central control unit 70 is to read the transmitted unique ID to allow charging if the unique ID that can be charged. If it is read that it is impossible to charge for reasons such as not paying the electric charge imposed on the transmitted unique ID, the reason for not charging is transmitted and the charging is not allowed.

Therefore, the power supplier may charge and manage the power charging of the electric vehicle 1 and the current charging power amount and charge in real time by using real-time two-way communication between the central control unit 70 and the detection unit 20. In addition, the user of the electric vehicle 1 may pay the cost by dividing it by a certain period of time by integrating it into the electric charge used in his or her home, rather than paying every charge.

Eventually, electric vehicle users can charge the electricity by using the regular power distribution network installed in their home or company, and use the time when the electric charge unit price is low, and pay the electric charge at the charging place every time. It can eliminate the inconvenience. Meanwhile, the power supplier can use the communication network 60 already installed in the distribution network as it is and install only a simple charging jack 40 to efficiently manage the charging station for using the electric vehicle without having to build a large-scale charging station. .

Hereinafter, the electric vehicle charging management method according to an embodiment of the present invention will be described in detail.

First, the user of the electric vehicle 1 connects the charging unit 10 installed in the electric vehicle to the charging jack 40 of the electric power grid in which the communication network is installed. That is, the user of the electric vehicle 1 connects the electric vehicle to the electric power grid for charging in various places where the distribution network is installed, such as homes, companies, public institutions and parking lots, in addition to the electric vehicle charging station installed separately. Of course, for this purpose, the power supplier must install a charging jack 40 for charging an electric vehicle in a home, a company, a public institution, and a parking lot by using an already installed distribution network.

When the electric vehicle 1 is connected to the electric power grid at any place for charging, the power line communication chip 26 installed in the electric vehicle sends its own ID to the central control unit 70 using the communication network 60. Transmitting is in progress. The communication network 60 does not need to be separately installed because it may use a smart grid network and the like already installed in the power grid. The power line communication chip 26 may communicate in real time with the central control unit 70 of the power provider through the communication network 60.

Once the power line communication chip 26 of the electric vehicle 1 transmits its own ID using the communication network 60, the central control unit 70 reads whether the transmitted unique ID is a chargeable ID. Since the unique ID of the electric vehicle 1 is already registered at the time of registration after completion of the production of the electric vehicle and is notified to the power supplier, the unique ID that does not go through such a legal procedure is not allowed to be charged. In addition, even if it is a legitimate unique ID, it will also read whether it is a unique ID that is not allowed to be charged by the power provider, such as not paying the electricity bill properly.

In the case of the ID allowing the charging result of the unique ID, the step of transmitting the information such as the electric unit price in the current time zone and the electric charge used so far to the power line communication chip 26 and allowing the charging is performed.

Next, the user of the electric vehicle 1 charges the electric vehicle 1 with the electricity through the charging unit 10 while checking in real time information such as the electric unit price provided by the central control unit 70 and the current electric charge. Will be done. Here, the electric vehicle user may not charge the battery when the unit price of the current time period is high, but may charge at a time when the lower unit price may be applied.

After the charging is completed, the power line communication chip 26 transmits the amount of charged power and the usage fee to the central controller 70. In addition, the central control unit 70 charges the amount of power transmitted and the usage fee to the unique ID, divides the data for a predetermined period, for example, about one month, and charges the electricity fee.

On the other hand, as a result of reading the unique ID in the above-described unique ID reading step, if the transmitted unique ID is not the charge allowable ID, the result is transmitted to the power line communication chip 26. The result is then displayed on the display unit 24 of the sensing unit 20, and the user of the electric vehicle 1 can recognize the information.

1 is a conceptual diagram of an electric vehicle charging management system according to an embodiment of the present invention.

2 is a conceptual diagram illustrating a configuration of a sensing unit according to an embodiment of the present invention.

Claims (7)

An electric vehicle driven using charged electricity; A charging unit installed in the electric vehicle and configured to charge external electric to the electric vehicle; A detection unit installed in the electric vehicle and detecting an amount of power and an electric charge charged by the charging unit; A communication network installed in a distribution network for supplying electric power, and receiving a signal of electric power and electric charge by wire and wireless communication with the sensing unit; And a central controller configured to integrally control the detector and the charger using wired or wireless communication with the communication network. The method of claim 1, wherein the detection unit, A power line communication chip having a unique ID assigned to each electric vehicle and performing power line communication with the communication network; A charge calculation unit for calculating a charged electric charge by reflecting an electric charge for each electric time for which electric current is charged in the electric vehicle and providing the calculated charge information to the power line communication chip; And a display unit configured to display, in real time, an electric charge of a current time zone and the electric charge calculated by the charge calculation unit in real time. The method of claim 2, The power line communication chip transmits its unique ID to the central control unit through the communication network at the moment when the charging unit is connected to an external power grid. The central control unit reads the transmitted unique ID, the electric vehicle charging management system, characterized in that for allowing charging if the unique ID. The method of claim 2, wherein the central control unit, The electric vehicle charging management system, characterized in that for charging the electric charge used for the power line communication chip by a predetermined period. The method of claim 1, wherein the communication network, The electric vehicle charging management system of claim 1, further comprising a time information generation unit for receiving time information from the GPS and transmitting it to the detection unit. 1) connecting a charging unit installed in the electric vehicle to a power grid having a communication network; 2) transmitting, by the power line communication chip installed in the electric vehicle, its unique ID to the central controller using the communication network; 3) reading whether the transmitted unique ID is a charging permission ID; 4) in the case of the charge allowable ID, transmitting the electric unit price of the current time zone and the electric charge used so far to the power line communication chip; 5) charging the electric vehicle with electricity through the charging unit; 6) after the charging is completed, the power line communication chip comprising the step of transmitting the charged power amount and the usage fee to the central control unit; electric vehicle charging management method comprising a. The method of claim 6, And transmitting the result to the power line communication chip if the transmitted unique ID is not the charge allowable ID as a result of step 3).

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