JP2019095196A - System, method, and program for guiding charging facility - Google Patents

Abstract

To contribute to stabilization of a power system.SOLUTION: The charging facility guiding system includes: means for acquiring the charged state of the battery of an electric vehicle; means for storing information on a charging facility arranged in a plurality of power distribution areas; means for calculating the power tolerance for each of the electric vehicles in the power distribution areas; and means for selecting a charging facility in the power distribution areas with a high power tolerance and sending guidance information to a user of an electric vehicle where the battery is charged as specifically required.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a charging facility guidance system, a charging facility guidance method, and a program, and more particularly, to a charging facility guidance system for notifying a driver of an electric vehicle (hereinafter referred to as "EV") the existence of a charging facility, a charging facility guide It relates to a method and program.

  In Patent Document 1, in order to balance supply and demand of electric power in the electric power system, as many electric vehicles as necessary for the necessary time are induced to the charging station, and charging electric power to each electric vehicle in each charging station is accurately A power system stabilization system is disclosed that can be controlled. According to this document, a power system monitoring control system plans the total charging power to be consumed by charging stations in each distribution area. The charge monitoring and control center recruits electric vehicles to be charged at the charging station with respect to the running electric vehicles in order to distribute and consume the necessary number of electric vehicles. Then, the charge monitoring and control center determines the amount of charge to each electric vehicle by distributing the total charging power to the required number of electric vehicles selected from among the electric vehicles for which the application has been applied, and further, It is said that each electric vehicle is individually guided to each charging station to individually control charging power to each electric vehicle at each charging station.

  Patent Document 2 discloses an electric vehicle charging facility guidance navigation device that enables a driver to select an electric vehicle charging station that completes charging while playing at a vacation facility. Patent Document 3 discloses a vehicle guidance system that can guide an electric vehicle to a charging station that is located around a route to a destination and has a vacant charging device even if the charging station management center is down. ing.

  According to Patent Document 4, when the departure place 51 of the electric vehicle 3 and the SOC (state of charge) are given, the departure of the destination 52 after the electric vehicle 3 reaches the destination 52 from the departure place 51 A display (2) for calculating a plurality of reachable points 57 that can be reached and a display that generates display data for displaying a reachable range display screen in which the plurality of reachable points 57 can be visually recognized There is disclosed an electrically-driven mobile information providing apparatus comprising data generation means (1). Patent Document 5 discloses a configuration for notifying a mobile communication terminal such as a driver of an automobile of a power source replenishment point based on travel history information of the automobile.

Patent No. 5395764 JP 2012-93096 A JP, 2011-232208, A JP 2014-145748 A JP 2013-250801 A

  The following analysis is given by the present invention. As disclosed in Patent Documents 1 to 5, a configuration has been proposed to notify the driver of the electric vehicle of the position of the charging facility such as the charging station, but power supply and demand for each distribution area constituting the distribution network is deeply considered. Not have the problem.

  In this respect, Patent Document 1 mentions the balance between supply and demand of power in a power system. However, the invention of Patent Document 1 selects the vehicle group to be charged after receiving the total charging power to be consumed by the charging stations in the distribution area constituting the distribution network from the power system monitoring and control system. Furthermore, it is configured to receive an application from among them, and to determine the priority of charging etc. from among the cars where the application has been made. For this reason, it may happen that the application from the car does not reach the target total charging power, or conversely, the application is rushed and the necessary charging amount can not be distributed to each car.

  An object of the present invention is to provide a charging facility guidance system, a charging facility guidance method, and a program that can contribute to stabilization of a power system without adopting the above-mentioned application procedure.

According to a first aspect, the first means for acquiring the state of charge of the battery of the electric vehicle,
The second means for calculating the power tolerance for the electric vehicle in the plurality of distribution areas, and the power tolerance for the user of the electric vehicle satisfying the predetermined condition of the charge condition of the battery. And a third means for transmitting guidance information on the selected charging equipment.

  According to the second aspect, the steps of acquiring the state of charge of the battery of the electric vehicle, calculating the power allowance for the electric vehicle in the plurality of distribution areas, and charging equipment disposed in the plurality of distribution areas Sending guidance information on the selected charging facility based on the level of the power allowance to the user of the electric vehicle, wherein the state of charge of the battery satisfies a predetermined condition with reference to the information of A charging facility guidance method is provided, including: The method is linked to a specific machine, a charging facility guidance system, which transmits guidance information on charging facilities of the electric vehicle to the user of the electric vehicle.

  According to the third aspect, the computer that configures the charging facility guidance system performs processing of acquiring the state of charge of the battery of the electric vehicle, processing of calculating the power allowance for the electric vehicle in the plurality of distribution areas, and The charging facility selected based on the level of the power allowance for the user of the electric vehicle, wherein the state of charge of the battery satisfies a predetermined condition, with reference to the information of the charging facility arranged in a plurality of distribution areas And a program for executing processing for transmitting guidance information on Note that this program can be recorded on a computer readable (non-transient) storage medium. That is, the present invention can also be embodied as a computer program product.

  According to the present invention, it is possible to contribute to the stabilization of the power system without adopting the above-described application procedure.

It is a figure which shows the structure of one Embodiment of this invention. It is a figure for demonstrating the operation | movement of one Embodiment of this invention. It is a figure which shows the whole structure of the 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure which shows an example of the power distribution area information which the charging equipment guidance system of the 1st Embodiment of this invention hold | maintains. It is a figure which shows an example of the charge installation information which the charge installation guidance system of the 1st Embodiment of this invention hold | maintains. It is a sequence diagram showing operation (judgement 1 at the time of driving start) of a 1st embodiment of the present invention. It is a sequence diagram showing operation (judgement 2 at the time of driving start) of a first embodiment of the present invention. It is a figure for demonstrating the charging necessity determination of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure for demonstrating selection operation of the charging equipment of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure for demonstrating selection operation of the charging equipment of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure which shows the structure of the charging equipment guidance system of the 2nd Embodiment of this invention. It is a figure which shows an example of the vehicle information which the charging equipment guidance system of the 2nd Embodiment of this invention hold | maintains. It is a sequence diagram which shows the operation | movement (the determination 1 during movement) of the 2nd Embodiment of this invention. FIG. It is a sequence diagram which shows the operation | movement (judgment 2 during movement) of the 2nd Embodiment of this invention. It is a figure which shows the structure of the charging equipment guidance system of the 3rd Embodiment of this invention. It is a figure which shows an example of the power distribution area information which the charging equipment guidance system of the 3rd Embodiment of this invention hold | maintains. It is a figure for demonstrating the operation | movement of the charging equipment guidance system of the 3rd Embodiment of this invention. It is another figure for demonstrating the operation | movement of the charging equipment guidance system of the 3rd Embodiment of this invention. It is a figure for demonstrating the operation | movement of the charging equipment guidance system of the 4th Embodiment of this invention.

  First, an outline of an embodiment of the present invention will be described with reference to the drawings. The reference numerals of the drawings appended to this summary are added for convenience to the respective elements as an example for aiding understanding, and the present invention is not intended to be limited to the illustrated embodiments. In one embodiment of the present invention, as shown in FIG. 1, the present invention comprises a charge state acquisition unit 11, a power allowance calculation unit 12, a guidance information transmission unit 13, and a charging facility information storage unit 14. It can be realized by the charging facility guidance system.

  More specifically, the charge condition acquisition unit 11 acquires, for example, the charge condition of the battery of the electric vehicle from the EV management cloud shown in FIG. In addition, the acquisition method of the charge condition of the battery of an electric vehicle is not restricted to EV management cloud. For example, the state-of-charge acquisition unit 11 may communicate with each of the electric vehicles to acquire vehicle information including the state of charge (see each embodiment described later). As used herein, "acquisition" includes active acquisition and passive acquisition. Active acquisition means that the own device goes out for data or information stored in another device or storage medium, for example, requests or inquiries from other devices, reception, other devices or storage For example, the medium may be accessed and read. As passive acquisition, inputting data or information output from another device to the own device (passive reception), for example, receiving data or information delivered (or transmitted, push notification, etc.) At least one of the following is included. Active acquisition also includes selectively acquiring from the received data or information, and passive acquisition includes selecting and receiving distributed data or information. .

  The charging facility information storage unit 14 stores information on charging facilities arranged in a plurality of distribution areas.

  The power tolerance calculation means 12 calculates power tolerances for electric vehicles in the plurality of distribution areas. "Power allowance" represents the degree to which charging or discharging of an electric vehicle is permitted in a certain power distribution area, and can also be referred to as a margin of power. Further, in particular, in the case where only the charge is used as an acceptable degree, it can also be referred to as the charge margin. Such power tolerance can be calculated, for example, from the power supply and demand of the power distribution area. When the power allowance is large, it indicates that the supply and demand of the distribution area is good. If the power allowance is low, it indicates that the supply and demand condition of the distribution area is tight.

  And the guidance information transmission means 13 transmits the guidance information regarding the charging equipment selected based on the height of the said electric power tolerance with respect to the user of the electric vehicle which the charge condition of the said battery satisfy | fills a predetermined condition.

  As a method of selecting a charging facility based on the level of the power tolerance, there is a method of selecting a charging facility whose power tolerance satisfies a predetermined standard. As predetermined criteria, it is considered that the power tolerance (higher value is better) scored by a predetermined formula exceeds a predetermined threshold, or the power tolerance classified or ranked. It is possible to use a criterion that the level is in a rank or class higher than a predetermined rank or class. Further, as another method of selecting a charging facility based on the level of the power tolerance, there is a method of comparing the power tolerances of a plurality of charging facilities and selecting the charging facility having the higher power tolerance. It can also be taken. Further, in any of these methods, the number of charging facilities included in the guidance information is not limited to one. For example, a plurality of charging facilities can be selected and included in the guidance information in order from the higher power tolerance.

  For example, as shown in FIG. 2, the guidance information transmission means 13 transmits guidance information to the user of the EV1 whose charge state of the battery satisfies a predetermined condition (the charge amount is smaller than the threshold). The guidance information transmission means 13 transmits, as the guidance information, guidance information for prompting charging of the charging facility in the distribution area 2 having a large power allowance among the distribution areas 1 to N.

  By doing so, the charging facility guidance system can guide and charge the electric vehicle from the distribution areas 1 to N to the distribution area 2 with high power tolerance. This makes it possible to prevent the charging from being performed in the area where the power tolerance is small, and to contribute to the stabilization of the power system.

  In addition, when transmitting guidance information mentioned above, the charge installation guidance system can consider not only the charge condition of an electric vehicle but the position of an electric vehicle. For example, when there are a plurality of power distribution areas with high power tolerance or when there are multiple charging facilities in the power distribution area, the guidance information for charging in the power distribution area closer to the current location of the electric vehicle or charging facility is transmitted can do. Similarly, the guidance information can be transmitted by selecting only the electric vehicles located near the power distribution area or the charging facility.

  Further, the guide information can include map information in the vicinity of the charging facility, route information to the charging facility, and detailed information of the charging facility (for example, specifications and the number of charging stations). Further, incentive information can be included in the guidance information as a mechanism for promoting charging in a charging facility that further contributes to stabilization of the power system. As this incentive information, it is possible to receive the provision of the charging service at a lower price for a certain period, and other benefits given to the user of the charged electric car (for example, a gift, offer information for shopping, giving points, etc. The contents of) can be included.

First Embodiment
Subsequently, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 is a diagram showing an entire configuration of the first embodiment of the present invention. Referring to FIG. 3, a configuration in which a charging facility guidance system 100 and a vehicle information collecting device 200 are connected is shown.

  The vehicle information collection device 200 is a device that communicates with the electric vehicle 300 by wire or wireless, and transmits information acquired from the electric vehicle 300 to the charging facility guidance system 100 side. In addition, when receiving the guidance information and the like from the charging facility guidance system 100, the vehicle information collection device 200 transmits the guidance information to the electric vehicle 300.

  Examples of such a vehicle information collection device 200 include, as illustrated in FIG. 3, homes, parking lots, charging devices installed in charging stations, smart meters, EMS (Energy Management System), and the like. Moreover, EMS is what is called HEMS (Home Energy Management System), BEMS (Building Energy Management System), FEMS (Factory Energy Management System) etc. according to an installation place. A communication standard using the 920 MHz band adopted by a smart meter or the like can also be used for communication between the vehicle information collection device 200 and the charging facility guidance system 100.

  The electric vehicle 300 has a function of communicating with the vehicle information collection device 200. In addition, the electric vehicle 300 used in the present embodiment includes on-vehicle terminals such as GPS and a car navigation device, and when the destination is set, the vehicle ID, the current location, the destination It has a function to transmit the battery level. In addition, the electric vehicle 300 has a function of displaying the guidance information on the on-vehicle terminal such as a car navigation device when the guidance information is received from the vehicle information collection device 200. The transmission timing of the vehicle ID, the current location, the destination, and the remaining battery amount is not limited to the time of departure when the destination is set in an on-vehicle terminal such as a car navigation device. For example, when the vehicle information collection device 200 is set on a road or a parking lot, the vehicle information may be transmitted from the vehicle information collection device 200 in response to a request.

  Moreover, the transmission / reception apparatus of vehicle information and guidance information is not restricted to vehicle-mounted terminals, such as a car navigation apparatus. For example, instead of the combination of the vehicle information collection device 200 and the on-vehicle terminal, an information terminal such as a smartphone carried by the user can be used. It is also possible to employ a configuration in which the information terminal transmits vehicle information to the charging facility guidance system 100 via a mobile communication network or the like, and displays the guidance information received from the charging facility guidance system 100.

  FIG. 4 is a diagram showing the configuration of the charging facility guidance system 100 according to the first embodiment of the present invention. Referring to FIG. 4, a vehicle information acquisition unit 111, a route calculation unit 112, a charging necessity determination unit 113, a charging facility searching unit 114, a guidance information transmitting unit 115, a charging facility information storage unit 116, and power distribution. A configuration including an area information storage unit 117 and a power tolerance calculation unit 118 is shown.

  The vehicle information acquisition unit 111 receives vehicle information including the charging state of the battery of the electric vehicle from the above-described vehicle information collection device 200, and transfers the vehicle information to the route calculation unit 112. In the present embodiment, the vehicle information acquisition unit 111 receives, from the vehicle information collection device 200, the ID (car ID) of the electric vehicle to be serviced, the current location, the destination, and the remaining amount of battery (corresponding to the charge state of the battery). It shall be.

  Based on the information received from the vehicle information acquisition unit 111, the route calculation unit 112 calculates a route until the electric vehicle targeted for service moves from the current location to the destination, and the calculated route information etc. Output to 113. The route calculation in the route calculation unit 112 may be performed by using the map data built in the route calculation unit 112 itself, or the route calculation unit 112 communicates with an external route calculation server etc. The calculation result may be received.

  Based on the route information calculated by the route calculation unit 112, the charge necessity determination unit 113 predicts a change in the state of charge before the destination electric vehicle reaches the destination (see FIG. 9). The charging necessity determination unit 113 determines, based on the prediction result, whether or not to be the transmission target of the guidance information informing the presence of the charging facility in the vicinity of the route to the destination. If it is determined that the guidance information is to be transmitted, the charging necessity determination unit 113 outputs, to the charging facility searching unit 114, the change in the route of the electric vehicle to be serviced and the predicted change in the charging state and the determination result. Note that the criteria for determining whether or not to send the guidance information is not limited to whether or not the destination can be reached without charging. For example, when the estimated remaining battery charge at the time of arrival at the destination is less than a predetermined value, it is possible to use a criterion such as determining that the guidance information needs to be transmitted. For example, in FIG. 9, when the estimated remaining battery charge at the time of arrival at the destination is 50%, it is less than 60% of the predetermined value, so it is determined that the guidance information is required to be transmitted.

  The power tolerance calculation unit 118 calculates the power tolerance of the power distribution area based on the fluctuation of the frequency and voltage of the trunk line of the power distribution area, and manages it as power distribution area information of the power distribution area information storage unit 117. Here, the "power allowance" will be described in more detail. Since electricity can not be stored, it is required that production and consumption be always the same. However, it is known that when this balance is broken, frequency fluctuation and voltage fluctuation occur. For example, in the case of frequency, if there is a 0.2 Hz fluctuation with respect to the reference frequency of 50 Hz or 60 Hz, the user will start to receive inquiries, and if the fluctuation width reaches a few percent, the user's motor must be stopped. It is known that situations can arise. In the present invention, information of managing the supply and demand condition of power in the distribution area which can be estimated from such fluctuation of frequency, fluctuation of voltage and the like as "power allowance" and determining the necessity of transmitting guidance information to the electric vehicle It is supposed to be used as an element. This power tolerance also depends on the grid capacity of the distribution area. When the grid capacity of the distribution area is large, the fluctuation of frequency and voltage is less likely to occur, so the power tolerance becomes larger. In this embodiment, the power tolerance calculated from the fluctuation of the frequency and the voltage and the system capacity in this way is divided into several stages of AAA to C and managed so as to be easy to handle. In this embodiment, the power tolerance is divided into nine stages of AAA> AA> A> BBB> BB> B> CCC> CC> C.

  In addition, "power tolerance" can be calculated from other than the fluctuation of the frequency or voltage of the trunk line in the distribution area. For example, the frequency or voltage of the power reception point of the charging facility located in the distribution area may be measured, and the “power allowance” may be calculated based on the fluctuation state. In addition, it is possible to receive information from power companies, power retailers, etc., such as supply and demand of power in each distribution area, and use it as "power allowance".

  FIG. 5 is a diagram showing an example of distribution area information held and managed in the distribution area information storage unit 117. As shown in FIG. In the example of FIG. 5, the power distribution area information includes a power distribution area (ID), charging facility information located in the power distribution area, and the power tolerance of each power distribution area. In addition, in the example of FIG. 5, the electric power tolerance after a fixed time is managed as distribution area information. Such future power tolerance can be calculated, for example, by correcting or simulating the current power tolerance using a future power generation plan or demand forecast. Also, instead of using a method of using a future power generation plan or demand forecast, it is also possible to adopt a method of predicting future power tolerance using past performance data.

  FIG. 6 is a diagram showing an example of charging facility information held and managed in the charging facility information storage unit 116. As shown in FIG. In the example of FIG. 6, the charging stations such as the stands A-1 and A-2 and the position information (latitude, longitude) are stored in association with each other. In the example shown in FIG. 6, only the position information of the charging station is held, but the specification of the charging station (charging function, the number of charging stations provided in parallel), the charging fee, etc. may be included. Among these, charging fee information and the like can be used as part of incentive information described later.

  When the charging facility search unit 114 receives from the charging necessity determination unit 113 the route information of the electric vehicle to be serviced and the determination result that the change state of the charging state is predicted and the guidance information is to be transmitted, the charging facility information storage unit 116 And with reference to the power distribution area information storage part 117, as shown in FIG. 10, the charging equipment located on the path | route of the electric vehicle of service object is extracted. Furthermore, the charging facility search unit 114 selects a charging facility whose power allowance satisfies a predetermined standard among the extracted charging facilities. For example, in a case where a reference to select a charging facility having a power tolerance of B or more is set, (charging) stands A-1 and B-1 in FIG. 11 are to be selected. The charging facility search unit 114 notifies the guidance information transmitting unit 115 of the selected charging facility. It should be noted in FIG. 11 that the power allowance at the time t n when the electric vehicle arrives at the (charging) stand is used as the power allowance of the distribution area to which the (charging) stand is connected. . For example, in the case of the (charging) stand B-1, the power allowance of the arrival time XX: XX + t2 of the electric vehicle is read out from the power distribution area information storage unit 117 and it is determined whether or not a predetermined standard is satisfied. It will be.

  The guidance information transmission unit 115 creates guidance information for the electric vehicle based on the information notified from the charging facility search unit 114, and transmits the guidance information to the vehicle information collection device 200 or an information terminal held by the user of the electric vehicle.

  In addition, each part (processing means) of the charging equipment guidance system 100 shown in FIG. 4 uses the hardware (processor, memory, storage) for the computer which comprises the charging equipment guidance system 100, and performs each process mentioned above It can also be realized by a computer program to be executed. Moreover, a part of the functions (processing means) of the charging facility guidance system 100 may be arranged on the network side to which the charging facility guidance system 100 is connected. For example, the route calculation unit 112, the charge necessity determination unit 113, the charge facility search unit 114, the charge facility information storage unit 116, and the distribution area information storage unit 117 have a route calculation function, a charge necessity determination function, a charge facility search function, It can be realized as a storage function of charging facility information and distribution area information.

  Subsequently, the operation of the present embodiment will be described in detail with reference to the drawings. FIG. 7 is a sequence diagram showing an operation (drive start determination 1) when it is determined that transmission of guidance information is unnecessary as a result of analyzing vehicle information in the first embodiment of the present invention. Referring to FIG. 7, first, when the user of the electric vehicle starts driving, a destination is input to an on-vehicle terminal or the like (step S001).

  An on-vehicle terminal or the like that has received an input of a destination combines the ID (car ID) of the electric vehicle, the current location, the destination, and the remaining amount of battery (hereinafter, these are also referred to as vehicle information). Send to The vehicle information collection device 200 transmits the information received from the on-vehicle terminal or the like to the charging facility guidance system 100.

  The charging facility guidance system 100 performs route calculation based on the current location and the destination of the vehicle included in the information from the vehicle information collection device 200, and charging is necessary based on the estimated remaining battery capacity of the electric vehicle on the route. It is determined no (step S002). In the example of FIG. 7, since it is determined that charging is unnecessary, the charging facility guidance system 100 transmits a message to the effect that transmission of guidance information is not performed to the vehicle information collection device 200.

  The vehicle information collection device 200 notifies the electric vehicle of "no guidance information". As described above, according to the charging facility guidance system 100, the transmission of the guidance information is suppressed when the charging is unnecessary.

  FIG. 8 is a sequence diagram showing an operation (judgement at start of driving 2) when it is determined that transmission of guidance information is necessary as a result of analyzing vehicle information in the first embodiment of the present invention. The operation of the charging equipment guidance system 100 of FIG. 8 performing the route calculation based on the current location and the destination of the vehicle included in the information received from the vehicle information collecting device 200 to determine the necessity of charging is shown in FIG. Similar to 7.

  In the example of FIG. 8, since it is determined that charging is necessary, when transmitting the guidance information to the vehicle information collecting apparatus 200, the charging equipment guidance system 100 performs the following processing for selecting the charging equipment.

  First, the charging facility guidance system 100 lists up charging facilities (charging facilities that can be bypassed) near the route of the electric vehicle received from the vehicle information collection device 200 (step S002-1). For example, as shown in FIGS. 9 and 10, the charging facility guidance system 100 extracts charging facilities (stands A-1, B-1, C-1) within a certain distance from the route from the current location to the destination. .

  Next, the charging facility guidance system 100 confirms the power allowance of the distribution area to which the charging facility is connected at each estimated arrival time to the extracted charging facility (step S002-2). Then, the charging facility guidance system 100 selects, from among the charging facilities listed up in step S002-1, the charging facility whose power allowance of the distribution area satisfies a predetermined standard. For example, as shown in FIG. 11, the charging facility guidance system 100 charges each of the charging facilities (stands A-1, B-1, C-1) within a certain distance from the route from the current location to the destination as shown in FIG. Based on the power allowance at the estimated arrival time to the equipment, the charging equipment (stands A-1 and B-1) is selected (when selecting a charging equipment whose power allowance in the distribution area is B or more).

  Then, the charging facility guidance system 100 creates guidance information including information on incentives for charging in the selected charging facility and information on the selected charging facility, and transmits the guidance information to the electric vehicle via the vehicle information collection device 200. (Step S002-3). By doing this, among the charging facilities (stands A-1, B-1, C-1) of FIG. It is possible to avoid charging in 1).

Second Embodiment
Subsequently, a second embodiment of the present invention will be described in detail with reference to the drawings. In the first embodiment described above, when the destination is input, the guidance information is transmitted as needed. However, even after the destination is input, the guidance information described above is Can be sent. Hereinafter, the second embodiment will be described focusing on differences from the first embodiment.

  FIG. 12 is a diagram showing a configuration of a charging facility guidance system according to a second embodiment of the present invention. The difference from the charging facility guidance system 100 of the first embodiment shown in FIG. 4 is that a vehicle information storage unit 120 is added to the guidance information transmission unit 115.

  The vehicle information storage unit 120 stores information of the electric vehicle to be serviced, including the transmitted guidance information. FIG. 13 is a diagram showing an example of the vehicle information held in the vehicle information storage unit 120. As shown in FIG. In the example of FIG. 13, information on the ID (car ID) of each electric vehicle, the current location, the destination, and the charging facility being guided is stored. These pieces of information are sequentially updated by the vehicle information acquisition unit 111a and the guidance information transmission unit 115a.

  FIG. 14 and FIG. 15 are sequence diagrams showing operations (judgement 1 and 2 during movement) when the electric vehicle transmits vehicle information again after departure to the destination in the second embodiment of the present invention. .

  As shown in FIG. 14, while traveling, the electric vehicle does not transmit vehicle information (step S001-1). On the other hand, when it is possible to communicate with the vehicle information collecting apparatus 200 when stopping at an arbitrary position, the electric vehicle is a vehicle with the ID (vehicle ID) of the electric vehicle, the current location, the destination, and the remaining battery It retransmits to the information collection device 200 (step S001-2). The vehicle information collection device 200 transmits the information received from the on-vehicle terminal or the like to the charging facility guidance system 100.

  Based on the vehicle information received from the vehicle information collection device 200 and the information on the electric vehicle stored in the vehicle information storage unit 120, the guidance information transmission unit 115a of the charging facility guidance system 100 needs to transmit the guidance information. It is determined no (step S002a). Specifically, the processes of steps S002-1 to S002-3 of FIG. 8 are performed. As a result, for example, when the reselected charging facility is the same as the in-provisioning charging facility stored in the vehicle information storage unit 120, the charging facility guidance system 100 transmits the guidance information to the vehicle information collecting device 200. Send a message that you do not want to

  The vehicle information collection device 200 notifies the electric vehicle of "No guidance information update". As described above, according to the charging facility guidance system 100, the transmission of the guidance information is suppressed when the second guidance is not required.

  FIG. 15 is a sequence diagram showing an operation (judgement 2 during movement) when it is determined that the re-transmission of the guidance information is necessary as a result of analyzing the vehicle information in the second embodiment of the present invention. Based on the vehicle information received from the vehicle information collection device 200 and the information of the electric vehicle stored in the vehicle information storage unit 120, the charging facility guidance system 100 of FIG. The operation up to this point is the same as in FIG.

  FIG. 15 shows an example in which it is determined that transmission of the guidance information is necessary as a result of the determination. For example, if there is a change in the destination, the charging facility guidance system 100 performs route calculation again to select the charging facility based on the route, the estimated remaining battery capacity of the electric vehicle on the route, and the power tolerance. To re-create and send guidance information. Also, for example, if there is no change in the destination, but there is a change in the route or there is a delay in the arrival time to the charging facility of the electric vehicle, the power allowance of the charging facility or charging facility listed Changes can occur from time to time. As a result, the charging equipment to be guided is also changed. Also in this case, the charging facility guidance system 100 carries out re-creation and transmission of the guidance information.

  As described above, in the present embodiment, even when there is a change in the destination or route of the electric vehicle or a delay in arrival, it is possible to appropriately transmit the optimum guide information.

Third Embodiment
In the first and second embodiments described above, the guidance information is created and transmitted without considering the presence of other electric vehicles in the distribution area, but the presence of other electric vehicles in the distribution area is considered It is also possible to create guidance information. Hereinafter, a third embodiment in which the first embodiment is modified from such a viewpoint will be described in detail with reference to the drawings.

  FIG. 16 is a diagram showing the configuration of a charging facility guidance system 100b according to the third embodiment of the present invention. The difference from the charging facility guidance system 100 of the first embodiment shown in FIG. 4 is that the vehicle information acquired by the vehicle information acquiring unit 111a is stored in the distribution area information storage unit 117a, and the charging necessity determination unit The point 113a refers to the distribution area information storage unit 117a to determine whether charging is necessary (necessity of transmitting guidance information) taking into consideration the number of electric vehicles in the distribution area that need to be charged.

  FIG. 17 is an example of distribution area information held in the distribution area information storage unit 117a in the present embodiment. The difference from the power distribution area information storage unit 117 of the first embodiment shown in FIG. 5 is that the electric vehicle existing in the power distribution area from the present time to the future and the battery remaining amount thereof can be held. is there. The change in the number of electric vehicles existing in the distribution area and the remaining battery capacity can be predicted from the destination information transmitted from each vehicle, the fuel consumption information of each electric vehicle, and the like. Also, instead of such prediction processing, past statistical data or the like having the same attribute (day, time, etc.) may be used simply.

  FIG. 18 is a diagram for describing determination processing of the necessity of charging by the necessity-of-charging determination unit 113a of the present embodiment. For example, as shown in FIG. 18, consider a case where there are electric vehicles EV1 to EV3 whose charge necessity degree rank is A (where A> B> C, and A or more is the transmission target of guidance information). Here, for example, it is assumed that the power allowance of the distribution area A in FIG. 18 is for two electric vehicles. In such a case, as shown in FIG. 19, the charge necessity determination unit 113a sets the charge necessity degree rank of the electric car EV1 whose destination is the home among the electric cars having the charge necessity degree rank A as A to B. Change to

  As a result, as shown in FIG. 19, the guidance information is transmitted only to EV2 and EV3. This makes it possible to prevent the stability of the power system from being impaired by the three electric vehicles simultaneously charging in the distribution area A. When the power allowance of the distribution area A in FIG. 18 is for three electric vehicles, the guidance information may be transmitted also to the electric vehicle EV1 whose destination is a home. In addition, based on the state of the storage battery in each electric vehicle, the guidance information may be transmitted to the electric vehicle having a higher degree of urgency. Specifically, the guidance information is preferentially transmitted to the electric vehicle having a small amount of remaining battery power, that is, having a small SOC. In addition, when the power allowance of distribution area A in FIG. 18 is for one electric vehicle, charging is performed by comparing electric vehicle EV2 and electric vehicle EV3 in addition to electric vehicle EV1 whose destination is at home. The guidance information may be transmitted only to an electric vehicle with a high degree of urgency (e.g., EV3 with a SOC of 10%).

  The third embodiment can be similarly applied to a configuration having the vehicle information storage unit 120 as in the second embodiment.

Fourth Embodiment
The configuration of the third embodiment described above can be used to transform an electric vehicle located in a certain distribution area into a configuration that guides the electric vehicle to another distribution area. Hereinafter, a fourth embodiment will be described which guides the electric vehicle to another area using the configuration of the third embodiment.

  FIG. 20 is a diagram for explaining the operation of the charging facility guidance system of the fourth embodiment of the present invention. As shown in FIG. 20, it is assumed that two power distribution areas A and B exist. As shown in FIG. 17, in the current distribution area A, there are many electric vehicles with low power tolerance (power tolerance: C) and a small amount of remaining battery power. On the other hand, distribution area B has higher power allowance (power allowance: AAA), and most of the electric vehicles in the area are in a state where there is a surplus in the remaining battery capacity, that is, a state where charging is not necessary. It has become.

  In such a case, the charging facility guidance system can transmit, to the electric vehicle located in the distribution area A, guidance information for guiding moving to the distribution area B and charging. Such guidance information does not have to be transmitted in response to an input of a destination, and can be transmitted at timings at which it can communicate with each electric vehicle. Of course, for an electric vehicle that is difficult to move to distribution area B, it is also possible to guide the charging station of distribution area A (at this time, it also transmits reverse incentive information to suppress rapid charging etc. Is also preferred).

  In addition, based on the electric vehicles existing in the distribution area in the future and the remaining battery capacity of the electric distribution area and the power allowance of the distribution area shown in FIG. May be created and sent. For example, as shown in FIG. 17, when it is predicted that the power tolerance of the power distribution area B after N hours becomes low (power tolerance: C), the electricity located in the power distribution area B earlier than that By urging the vehicle to charge in the power distribution area A with high power tolerance after N hours (power tolerance: AAA), the power system in the power distribution area B can be prevented from becoming unstable.

  According to the fourth embodiment as described above, it becomes possible to adapt the electric vehicle to be charged between the distribution areas having different power tolerances, and to improve the stabilization of the power system.

  As mentioned above, although each embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and further modification, substitution, adjustment in the range which does not deviate from the basic technical idea of the present invention Can be added. For example, the network configuration shown in each drawing, the configuration of each element, and the form of representation of messages are an example to help the understanding of the present invention, and the present invention is not limited to the configuration shown in these drawings.

Finally, the preferred form of the invention is summarized.
[First embodiment]
(Refer to the charging equipment guidance system from the above first viewpoint)
[Second form]
In the first form charging facility guidance system,
A charging facility guidance system, wherein the third means transmits guidance information on the charging facilities selected in descending order of the power allowance.
[Third form]
In the first form charging facility guidance system,
The said 3rd means selects the said charging equipment with relatively high said electric power tolerance compared with the other said charging equipment, and the charging equipment guidance system which transmits the guidance information regarding the said charging equipment.
[Fourth embodiment]
In the charging facility guidance system according to any one of the first to third aspects,
And a fourth means for acquiring position information of the electric vehicle from the electric vehicle,
A charging facility guidance system for selecting a charging facility to which the guidance information is to be transmitted among the plurality of charging facilities based on position information of the electric vehicle.
[Fifth embodiment]
In the charging facility guidance system according to any one of the first to fourth aspects,
The electric vehicle further comprises means for acquiring destination information or route information to the destination of the electric vehicle.
Among the charging facilities of the plurality of distribution areas, among the charging facilities in the distribution area along the moving route of the electric vehicle, among the charging facilities of the plurality of distribution areas, the transmission target of the guidance information based on the destination information or the route information to the destination Charging equipment guidance system to select the charging equipment to be.
Sixth Embodiment
In the charging facility guidance system of the fifth aspect,
The electric vehicle further comprises means for estimating a change in battery charge state of the electric vehicle in the process of moving to the destination based on destination information of the electric vehicle or route information to the destination.
The charging facility guidance system which determines whether guidance information is transmitted based on the change of the charge condition of the battery of the electric vehicle in the process of moving to the said destination, and the said electric power permission degree.
[Seventh embodiment]
In the charging facility guidance system according to any one of the fourth to sixth aspects,
A charging facility guidance system that determines whether it is necessary to create new guidance information, triggered by acquisition of a charging state of a battery of the electric vehicle or acquisition of position information of the electric vehicle.
[Eighth embodiment]
In the charging facility guidance system according to any one of the fifth to seventh aspects,
The charging equipment guidance system which creates and transmits new guidance information triggered by acquisition of the destination information or route information to the destination.
[Ninth form]
In the charging facility guidance system according to any one of the first to sixth aspects,
The charging equipment guidance system in which the guidance information includes incentive information for charging based on the power allowance of the charging equipment.
[Tenth embodiment]
In the charging facility guidance system according to any one of the first to ninth aspects,
The charge facility guidance system which calculates the said electric power allowance based on the stable state of the frequency or voltage of the distribution area where the said charge facility is located.
[Eleventh embodiment]
In the charging facility guidance system according to any one of the first to ninth aspects,
The charge facility guidance system which calculates the said electric power allowance based on the stable state of the frequency or voltage in the charge facility in the distribution area where the said charge facility is located.
[Twelfth embodiment]
In the charging facility guidance system according to any one of the first to ninth aspects,
The charging facility guidance system which calculates the said electric power allowance based on the supply-and-demand information of the electric power classified by distribution area in which the said charging installation is received from a predetermined | prescribed electric power server.
[13th form]
In the charging facility guidance system according to any one of the tenth to twelfth aspects,
Based on the power consumption forecast of the load device including the electric vehicle located in the distribution area, the power allowance at the future time point is calculated, and based on the power allowance at the future time when the electric vehicle arrives at the charging facility A charging equipment guidance system that selects the charging equipment to be included in the guidance information.
[Fourteenth embodiment]
In the charging facility guidance system according to any one of the first to thirteenth aspects,
A charging facility guidance system that determines whether or not to transmit guidance information to an electric vehicle located in the distribution area based on the number of electric vehicles in the distribution area that need to be charged.
[Fifteenth embodiment]
(Refer to the charging equipment guide method from the above 2nd viewpoint)
[The sixteenth embodiment]
(Refer to the program from the above third viewpoint)
The fifteenth to sixteenth modes can be developed into the second to fourteenth modes, as in the first mode.

  The disclosures of the above-mentioned patent documents are incorporated herein by reference. Within the scope of the entire disclosure of the present invention (including the scope of the claims), modifications and adjustments of the embodiments or examples are possible based on the basic technical concept of the invention. In addition, various combinations or selections of various disclosed elements (including each element of each claim, each element of each embodiment or example, each element of each drawing, and the like) are possible within the scope of the present disclosure. It is. That is, the present invention of course includes the entire disclosure including the scope of the claims, and various modifications and alterations that can be made by those skilled in the art according to the technical concept. In particular, with regard to the numerical ranges described herein, it should be understood that any numerical value or small range falling within the relevant range is specifically described even if it is not otherwise described.

11 Charge condition acquisition means 12 Power tolerance calculation means 13 Guidance information transmission means 14 Charge equipment information storage means 100, 100a, 100b Charge equipment guidance system 111, 111a Vehicle information acquisition part 112 Route calculation part 113, 113a Charge necessity judgment part 114 charging facility search unit 115, 115a guidance information transmitting unit 116 charging facility information storage unit 117, 117a power distribution area information storage unit 118 power allowance calculation unit
120 Vehicle Information Storage Unit 200 Vehicle Information Collection Device 300 Electric Vehicle

Claims (16)

The first means for obtaining the state of charge of the battery of the electric vehicle,
A second means for calculating power tolerances for electric vehicles in a plurality of distribution areas;
Third means for transmitting guidance information on a charging facility selected based on the level of the power allowance to a user of the electric vehicle in which the state of charge of the battery satisfies a predetermined condition;
Charging equipment guidance system equipped with.   The charging facility guidance system according to claim 1, wherein the third means transmits guidance information on the charging facilities selected in descending order of the power allowance.   2. The charging facility guidance system according to claim 1, wherein the third means selects the charging facility having a relatively higher power allowance than the other charging facilities, and transmits guidance information on the charging facility. And a fourth means for acquiring position information of the electric vehicle from the electric vehicle,
The charging equipment guidance system in any one of Claim 1 to 3 which selects the charging equipment which makes transmission object of the said guidance information out of the said some charging equipment based on the positional information on the said electric vehicle. The electric vehicle further comprises means for acquiring destination information or route information to the destination of the electric vehicle.
Among the charging facilities of the plurality of distribution areas, among the charging facilities in the distribution area along the moving route of the electric vehicle, among the charging facilities of the plurality of distribution areas, the transmission target of the guidance information based on the destination information or the route information to the destination The charging equipment guidance system in any one of Claim 1 to 4 which selects the charging equipment to carry out. The electric vehicle further comprises means for estimating a change in battery charge state of the electric vehicle in the process of moving to the destination based on destination information of the electric vehicle or route information to the destination.
The charging facility guidance system according to claim 5, wherein whether to transmit guidance information or not is determined based on the change in the state of charge of the battery of the electric vehicle in the process of moving to the destination and the power allowance.   The charging facility guidance system according to any one of claims 4 to 6, wherein it is determined whether or not it is necessary to create new guidance information in response to acquisition of a charge state of a battery of the electric vehicle or acquisition of position information of the electric vehicle.   The charging equipment guidance system according to any one of claims 5 to 7, wherein new guidance information is created and transmitted in response to the acquisition of the destination information or the route information to the destination.   The charging facility guidance system according to any one of claims 1 to 6, wherein the guidance information includes incentive information for charging based on the power allowance of the charging facility.   The charging facility guidance system according to any one of claims 1 to 9, wherein the power allowance is calculated based on a stable state of frequency or voltage of a distribution area where the charging facility is located.   The charging facility guidance system according to any one of claims 1 to 9, wherein the power allowance is calculated based on a stable state of frequency or voltage in a charging facility in a distribution area where the charging facility is located.   The charging facility guidance system according to any one of claims 1 to 9, wherein the power allowance is calculated based on supply and demand information of power for each distribution area where the charging facility is received from a predetermined power server.   Based on the power consumption forecast of the load device including the electric vehicle located in the distribution area, the power allowance at the future time point is calculated, and based on the power allowance at the future time when the electric vehicle arrives at the charging facility The charging equipment guidance system in any one of Claim 10-12 which selects the charging equipment included in guidance information.   The method according to any one of claims 1 to 13, wherein it is determined whether to transmit guidance information to the electric vehicles located in the distribution area based on the number of electric vehicles that need to be charged in the distribution area. Charging equipment guidance system. Obtaining the state of charge of the battery of the electric car,
Calculating power tolerances for electric vehicles in a plurality of distribution areas respectively;
The charge selected based on the level of the power allowance for the user of the electric vehicle, wherein the state of charge of the battery satisfies a predetermined condition with reference to the information of the charging facilities arranged in the plurality of distribution areas Sending guidance information about the installation;
Charging equipment guide method including. In the computer that constitutes the charging facility guidance system,
Processing to obtain the state of charge of the battery of the electric car,
A process of calculating power tolerances for electric vehicles in a plurality of distribution areas;
The charge selected based on the level of the power allowance for the user of the electric vehicle, wherein the state of charge of the battery satisfies a predetermined condition with reference to the information of the charging facilities arranged in the plurality of distribution areas A process of transmitting guidance information on the equipment;
A program that runs

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