WO2017154760A1

WO2017154760A1 - Charging facility guidance system, charging facility guidance method, and program storage medium

Info

Publication number: WO2017154760A1
Application number: PCT/JP2017/008428
Authority: WO
Inventors: 潤有吉
Original assignee: 日本電気株式会社
Priority date: 2016-03-09
Filing date: 2017-03-03
Publication date: 2017-09-14
Also published as: JP2019095196A

Abstract

In order to contribute to making an electric power system more stable, this charging facility guidance system acquires the charge state of a battery of an electric vehicle. The charging facility guidance system also stores information about charging facilities disposed in a plurality of power distribution areas. The charging facility guidance system further calculates each of power tolerances for electric vehicles in the plurality of power distribution areas, and selects a charging facility within a power distribution area having a high power tolerance and transmits guidance information for this charging facility to a user of an electric vehicle of which the battery charge state satisfies a prescribed condition.

Description

Charging facility guidance system, charging facility guidance method, and program storage medium

The present invention relates to a technique for notifying the driver of an electric vehicle of the existence of a charging facility.

The electric power system stabilization system disclosed in Patent Document 1 is configured to guide each electric vehicle to a charging station as many times as necessary in order to balance the supply and demand of electric power in the electric power system. The charging power to each electric vehicle is controlled. According to the document, the power system stabilization system plans the total amount of charging power that should be consumed by the charging stations in each distribution area. The charge monitoring and control center recruits electric vehicles that are charged at a charging stand toward the electric vehicle that is running in order to distribute and consume the electric power to the electric vehicle. Then, the charge monitoring control center determines the amount of charge to each electric vehicle by distributing the total charge power amount to the required number of electric vehicles selected from the applied electric vehicles. Further, the charging monitoring control center individually controls the charging power to each electric vehicle at each charging station by individually guiding each electric vehicle to each charging station.

Patent Document 2 discloses an electric vehicle charging facility guidance navigation device that allows a driver to select an electric vehicle charging station that completes charging while playing at an amusement 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 toward a destination and has a vacant charging device even if the charging station management center goes down. .

Patent Document 4 discloses an electric vehicle information providing apparatus. This electric vehicle information providing device is provided when the electric vehicle arrives at the destination from the starting place and further departs from the destination when the starting point of the electric vehicle and the SOC (state of charge) are given. Calculate multiple reachable points that are possible. The electric vehicle information providing apparatus generates display data for displaying a reachable range display screen in which the calculated plurality of reachable points can be visually recognized. Patent Document 5 discloses a configuration for notifying a power source replenishment point to a mobile communication terminal such as an automobile driver based on traveling history information of the automobile.

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

As disclosed in Patent Documents 1 to 5, a configuration for informing the driver of an electric vehicle of the position of a charging facility such as a charging stand has been proposed, but power supply and demand for each distribution area constituting the distribution network is considered. There is no problem.

That is, Patent Document 1 refers to the supply and demand balance of power in the power system. However, the power system stabilization system of Patent Document 1 receives the total charge power amount that should be consumed by the charging station group in the distribution area constituting the distribution network from the charge monitoring control center, and is subsequently charged. Select a car group. Furthermore, the power system stabilization system accepts an application from the selected group of cars, and determines the priority order of charging among the cars that have been applied. For this reason, in the electric power system stabilization system of patent document 1, since there are few applications from a motor vehicle, the problem that it does not reach the target total charge electric energy, conversely, the application is flooded and charging required for each vehicle. The problem that the amount cannot be allocated can arise.

This invention aims at providing the technique which can contribute to stabilization of an electric power system, without taking the procedure of application mentioned above.

According to a first aspect, an acquisition unit that acquires a state of charge of an electric vehicle battery;
A calculation unit for calculating power tolerance for the electric vehicle in each of the plurality of distribution areas, and a user of an electric vehicle whose charge state of the battery satisfies a predetermined condition is selected based on the power tolerance level There is provided a charging facility guidance system including a transmission unit that transmits guidance information regarding the charging facility.

According to a second aspect, the step of acquiring the charge state of the battery of the electric vehicle, the step of calculating the power tolerance for the electric vehicle in each of the plurality of distribution areas, and the charging equipment disposed in the plurality of distribution areas A step of transmitting the guidance information regarding the charging facility selected based on the high power tolerance to a user of an electric vehicle in which the state of charge of the battery satisfies a predetermined condition with reference to the information of A charging facility guidance method is provided. The method is associated with a specific machine called a charging facility guidance system that transmits guidance information about the charging facility of an electric vehicle to a user of the electric vehicle.

According to a third aspect, in the computer constituting the charging facility guidance system, the process of acquiring the charge state of the battery of the electric vehicle, the process of calculating the power tolerance for the electric vehicle in a plurality of distribution areas, A charging facility selected based on the power tolerance level for a user of an electric vehicle whose charging state of the battery satisfies a predetermined condition with reference to information on charging facilities arranged in a plurality of power distribution areas And a program storage medium for storing a computer program for executing the process for transmitting the guidance information. This program storage medium is a computer-readable (non-transient) storage medium. That is, the present invention can 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 taking the application procedure.

It is a figure which shows the structure of one Embodiment of this invention. It is a figure for demonstrating operation | movement of one Embodiment of this invention. It is a figure which shows the whole structure of the 1st Embodiment of this invention. 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 charging equipment information which the charging equipment guidance system of the 1st Embodiment of this invention hold | maintains. It is a sequence diagram which shows the operation | movement (determination 1 at the time of an operation start) of the 1st Embodiment of this invention. It is a sequence diagram which shows the operation | movement (determination 2 at the time of an operation start) of the 1st Embodiment of this invention. It is a figure explaining the charge necessity determination of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure explaining the selection operation | movement of the charging equipment of the charging equipment guidance system of the 1st Embodiment of this invention. It is a figure explaining the selection operation | movement 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 operation | movement (judgment 1 during movement) of the 2nd Embodiment of this invention. It is a sequence diagram which shows 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 distribution area information which the charging equipment guidance system of the 3rd Embodiment of this invention hold | maintains. It is a figure explaining operation | movement of the charging equipment guidance system of the 3rd Embodiment of this invention. It is another figure explaining operation | movement of the charging equipment guidance system of the 3rd Embodiment of this invention. It is a figure explaining 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. Note that the reference numerals of the drawings attached to this summary are attached to the respective elements for convenience as an example for facilitating understanding, and are not intended to limit the present invention to the illustrated embodiment. As shown in FIG. 1, the charging facility guidance system according to an embodiment of the present invention includes an acquisition unit 11, a calculation unit 12, a transmission unit 13, and a facility information storage unit 14.

More specifically, the acquisition unit 11 acquires the charge state of the battery of the electric vehicle EV, for example, via the EV management cloud illustrated in FIG. Note that the method for acquiring the state of charge of the battery of the electric vehicle EV is not limited to the method using the EV management cloud. For example, the acquisition unit 11 may acquire vehicle information including the state of charge by communicating with each electric vehicle EV (see each embodiment described later). In this specification, “acquisition” includes active acquisition and passive acquisition. Active acquisition includes that the device itself obtains data or information stored in another device or storage medium, for example, requests or inquires of other devices and receives them, or other devices or memories. For example, accessing and reading a medium. Passive acquisition includes receiving data or information output from other devices (passive reception) and receiving data or information distributed (or transmitted, push notification, etc.), for example. Or at least one of doing. Active acquisition includes selecting and acquiring from received data or information, and passive acquisition includes selecting and receiving distributed data or information. .

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

The calculation unit 12 calculates the power tolerance for the electric vehicle EV in each of the plurality of distribution areas. “Power tolerance” represents the degree to which charging or discharging of the electric vehicle EV is permitted in a certain distribution area, and can also be referred to as a power margin. In particular, when used as a degree that only charging is permitted, the “power tolerance” can also be referred to as a charging margin. Such power tolerance can be calculated from, for example, the supply and demand state of power in the distribution area. When the power tolerance is large, it indicates that the supply and demand state of the power distribution area is good. When the power tolerance is small, it indicates that the supply and demand state of the power distribution area is tight.

The transmission unit 13 transmits guidance information related to the charging facility selected based on the high power tolerance toward the user of the electric vehicle EV in which the state of charge of the battery satisfies a predetermined condition.

As a method for selecting a charging facility based on the high power tolerance, there is a method for selecting a charging facility whose power tolerance satisfies a predetermined standard. As the predetermined criterion, there is a criterion that the power tolerance scored by a predetermined mathematical formula (a higher value is better) exceeds a predetermined threshold. In addition, as a predetermined criterion, a criterion that the level of power tolerance that is ranked or classified is higher than a predetermined rank or class can be used. Further, as another method of selecting a charging facility based on the high power tolerance, there is a method of selecting a charging facility having a higher power tolerance by comparing the power tolerances of a plurality of charging facilities. is there. Further, the number of charging facilities whose information is included in the guide information transmitted by the transmission unit 13 is not limited to one. For example, the transmission unit 13 may select a plurality of charging facilities in order from the one with higher power tolerance, and may include information on the selected plurality of charging facilities in the guidance information.

For example, as illustrated in FIG. 2, the transmission unit 13 transmits guidance information to the user of the electric vehicle EV1 in which the state of charge of the battery satisfies a predetermined condition (the amount of charge is less than a threshold). The transmission unit 13 transmits, as the guide information, guide information that prompts charging at the charging facility in the power distribution area 2 having a large power tolerance from the power distribution areas 1 to N (N is a positive integer).

In this way, the charging facility guidance system can guide and charge the electric vehicle EV1 from the distribution areas 1 to N to the distribution area 2 having a large power tolerance. Thereby, this charging equipment guidance system can suppress that charging is performed in an area with low power tolerance, and can contribute to stabilization of the power system.

In addition, when transmitting guidance information, the charging facility guidance system can take into account not only the state of charge of the electric vehicle EV but also the position of the electric vehicle EV. For example, when there are a plurality of distribution areas with high power tolerance or when there are a plurality of charging facilities in the distribution area, the charging facility guidance system is closer to the current location of the electric vehicle EV that is the destination of the guidance information. Guidance information that prompts charging in the power distribution area or the charging facility can be transmitted. The charging facility guidance system can also select an electric vehicle EV located in a position near the power distribution area or the charging facility, and can transmit guidance information toward the selected electric vehicle EV.

Further, the guide information transmitted by the transmission unit 13 may include map information around the charging facility, route information to the charging facility, and detailed information on the charging facility (for example, specifications and number of charging stations). Further, incentive information may be included in the guidance information as a mechanism for prompting charging at a charging facility that further contributes to stabilization of the power system. As this incentive information, for example, it is possible to receive a charge service at a cheaper price for a certain period of time, and other benefits (for example, presents, shopping preferential information, points, etc.) given to a user of a charged electric vehicle EV For example).

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

The information collection device 200 is a device that communicates with the electric vehicle EV in a wired or wireless manner and transmits information acquired from the electric vehicle EV to the charging facility guidance system 100 side. Moreover, when the information collection device 200 receives the information addressed to the electric vehicle EV from the charging facility guidance system 100, the information collection device 200 transmits the received information to the electric vehicle EV.

Examples of such an information collection device 200 include homes, parking lots, charging devices installed at charging stations, smart meters, EMS (Energy Management System), and the like. The EMS includes what are called HEMS (Home Energy Management System), BEMS (Building Energy Management System), FEMS (Factory Energy Management System), and the like depending on the installation location. For communication between the information collection device 200 and the charging facility guidance system 100, for example, a communication standard using a 920 MHz band adopted in a smart meter or the like is used.

The electric vehicle EV has a function of communicating with the information collection device 200. Moreover, the electric vehicle EV used in the first embodiment includes in-vehicle terminals such as a GPS (Global Positioning System) and a car navigation device, and when the destination is set, the vehicle ID is directed toward the information collection device 200. (Identification), a function of transmitting vehicle information including a current location, a destination, and a remaining battery level. In addition, when the electric vehicle EV receives information (for example, guidance information) from the information collection device 200, the electric vehicle EV has a function of displaying the received information on a vehicle-mounted terminal such as a car navigation device. Note that the transmission timing of the vehicle information including the vehicle ID, the current location, the destination, and the remaining battery level is not limited to the departure time when the destination is set in an in-vehicle terminal such as a car navigation device. For example, when the information collection device 200 is installed on a road or in a parking lot, the electric vehicle EV may transmit vehicle information in response to a request from the information collection device 200.

Also, the vehicle information and guidance information transmission / reception device is not limited to an in-vehicle terminal such as a car navigation device. For example, instead of the in-vehicle terminal, an information terminal such as a smartphone carried by the user may be used. That is, the information terminal may transmit vehicle information to the charging facility guidance system 100 via the mobile communication network or the like, and may display the guidance information received from the charging facility guidance system 100.

FIG. 4 is a diagram showing a configuration of the charging facility guidance system 100 according to the first embodiment of the present invention. Referring to FIG. 4, the charging facility guidance system 100 includes an acquisition unit 111, a calculation unit 112, a determination unit 113, a search unit 114, a transmission unit 115, a facility information storage unit 116, and an area information storage unit 117. And a calculation unit 118.

The acquisition unit 111 receives vehicle information including the state of charge of the battery of the electric vehicle EV from the information collection device 200 and transfers the vehicle information to the calculation unit 112. In the first embodiment, the acquisition unit 111 receives the ID (vehicle ID (IDentification)), current location, destination, and remaining battery level (corresponding to the charge state of the battery) of the electric vehicle EV to be serviced from the information collection device 200. It is assumed that vehicle information including is received.

Based on the vehicle information received from the acquisition unit 111, the calculation unit 112 acquires route information until the service-targeted electric vehicle EV moves from the current location to the destination, and outputs the acquired route information and the like to the determination unit 113. To do. The acquisition of the route in the calculation unit 112 may be to calculate a route using map data built in the calculation unit 112 itself, or the route from the calculation unit 112 to an external route calculation server or the like may be obtained. A route calculation result calculated by a calculation server or the like may be received.

The determination unit 113 predicts a change in the state of charge until the service-targeted electric vehicle EV reaches the destination based on the route information acquired by the calculation unit 112 (see FIG. 9). Based on the prediction result, the determination unit 113 determines whether or not to transmit guidance information that informs the existence of a charging facility near the route to the destination toward the service-targeted electric vehicle EV. If it is determined that the guidance information is to be transmitted, the determination unit 113 outputs the route of the electric vehicle EV to be serviced, the predicted change in the state of charge, and the determination result to the search unit 114. Note that the criterion for determining whether or not to transmit the guidance information is not limited to whether or not the destination can be reached without charging. For example, the determination criterion may be a criterion for determining that transmission of guidance information is necessary when the estimated remaining battery level at the time of arrival at the destination is less than a predetermined value. For example, as shown in FIG. 9, when the estimated battery remaining amount is 50% at the time of arrival at the destination, the determination unit 113 needs to transmit guidance information because it is less than 60% of the predetermined value. Judge that there is.

The calculating unit 118 calculates the power tolerance of the power distribution area based on the information on the power supply frequency and power supply voltage of the main line in the power distribution area, and registers it as power distribution area information in the area information storage unit 117. Here, “power tolerance” will be described. It is preferable that the production amount and the consumption amount are always the same due to factors relating to the storage of electricity. It is also known that the power supply frequency and the power supply voltage fluctuate when the balance between production and consumption is lost. For example, when there is a fluctuation of 0.2 Hz with respect to the reference frequency of 50 Hz or 60 Hz, the user starts to inquire, and when the fluctuation width reaches several percent, the user-side motor must be stopped. It is known that a situation can arise. Here, the power supply / demand state of the distribution area, which can be estimated from such fluctuations in power supply frequency and power supply voltage, is managed as “power tolerance”, and it is determined whether or not it is necessary to transmit guidance information to the electric vehicle. It is supposed to be used as an information element. This power tolerance also depends on the system capacity of the distribution area. When the system capacity of the power distribution area is large, fluctuations in the power supply frequency and the power supply voltage are less likely to occur, so that the power tolerance increases. In the first embodiment, the power tolerance calculated based on the fluctuation of the power supply frequency and the power supply voltage and the system capacity is managed in a plurality of stages so as to be easy to handle. In the first embodiment, it is assumed that the power tolerance is divided into nine stages (AAA is the highest tolerance) of AAA> AA> A> BBB> BB> B> CCC> CC> C.

It should be noted that the “power tolerance” can be calculated from information other than information on fluctuations in the mains power frequency and power supply voltage in the distribution area. For example, the calculation unit 118 may calculate the “power tolerance” based on the fluctuation state of the power supply frequency and the power supply voltage measured at the power receiving point of the charging facility located in the distribution area. Further, the calculation unit 118 may receive information such as a power supply / demand state for each power distribution area from an electric power company, a power retailer, or the like, and set the received information as “power tolerance”.

FIG. 5 is a diagram illustrating an example of distribution area information registered in the area information storage unit 117. In the example of FIG. 5, the distribution area information includes distribution area identification information (ID), charging facility information located in the distribution area, and power tolerance information of each distribution area. In the example of FIG. 5, the power tolerance for a predetermined time is registered as the distribution area information. Such a future power tolerance may be calculated by correcting the current power tolerance using a future power generation plan or demand prediction, or may be calculated by simulation. Moreover, it replaces with the method of using a future electric power generation plan and demand prediction, and the method of estimating future electric power tolerance using the past performance data may be employ | adopted.

FIG. 6 is a diagram illustrating an example of charging facility information registered in the facility information storage unit 116. In the example of FIG. 6, charging stations such as the stations A-1 and A-2 and their position information (latitude and longitude) are associated with each other and stored in the facility information storage unit 116. In the example of FIG. 6, the charging station position information is registered as the charging facility information. However, the charging station specifications (charging function, number of charging stations attached to the charging station) and the charging fee are also registered as the charging facility information. May be. Among these, charging charge information etc. can be used as a part of incentive information mentioned later.

When the search unit 114 receives from the determination unit 113 the determination result that the route information of the electric vehicle EV to be serviced, the charge state change prediction, and the guidance information are to be transmitted, the facility information storage unit 116 and the area information storage unit With reference to 117, as shown in FIG. 10, the charging facility located in the route K of the electric vehicle EV to be serviced is extracted. Further, the search unit 114 selects a charging facility whose power tolerance satisfies a predetermined criterion from among the extracted charging facilities. For example, when a criterion for selecting a charging facility having a power tolerance of B or higher is set, (charging) stands A-1 and B-1 in FIG. 11 are selected. Then, the search unit 114 notifies the transmission unit 115 of information representing the selected charging facility. What should be noted in FIG. 11 is that the power tolerance at time tn when the electric vehicle EV arrives at the (charging) stand is used as the power tolerance 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 at the time tn (tn = ta + t2) when the electric vehicle EV reaches the stand B-1 is read from the area information storage unit 117, and based on the power allowance. A determination is made whether a predetermined criterion is met.

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

Note that each functional unit of the charging facility guidance system 100 illustrated in FIG. 4 causes the computer constituting the charging facility guidance system 100 to execute the above-described processes using the hardware (processor, memory, storage). It can be realized by a computer program. Moreover, a part of functional part which comprises the charging equipment guidance system 100 may be arrange | positioned at the network side which the charging equipment guidance system 100 connects. For example, the calculation unit 112, the determination unit 113, the search unit 114, the facility information storage unit 116, and the area information storage unit 117 include a route calculation function, a charging necessity determination function, a charging facility search function, and a charging facility information / distribution area in a computer. It can be realized as an information storage function.

Subsequently, the operation of the charging facility guidance system 100 according to the first embodiment will be described with reference to the drawings. FIG. 7 is a sequence diagram illustrating an operation example (operation start determination 1) when the guide information is not transmitted. Referring to FIG. 7, first, when the user of the electric vehicle EV starts driving, information on the destination is input to the in-vehicle terminal or the like. The in-vehicle terminal of the electric vehicle EV receives the destination information (step S001).

The in-vehicle terminal or the like that has received the destination input transmits vehicle information including the electric vehicle ID (vehicle ID), the current location, the destination, and the remaining battery level to the information collecting apparatus 200. The information collection device 200 transmits the vehicle information received from the in-vehicle terminal or the like toward the charging facility guidance system 100.

The calculation unit 112 of the charging facility guidance system 100 acquires the route K based on the current location and the destination of the electric vehicle EV included in the vehicle information received from the information collection device 200. The determination unit 113 determines whether charging is necessary based on the estimated battery remaining amount of the electric vehicle EV on the route K. Furthermore, the determination unit 113 determines whether or not it is necessary to transmit guidance information based on the determination result (step S002). In the example of FIG. 7, it is determined that charging is unnecessary, and thus the determination unit 113 determines that transmission of guidance information is unnecessary. Then, the charging facility guidance system 100 transmits a message Mn to the information collection device 200 indicating that the guidance information is not transmitted.

The information collection device 200 notifies the electric vehicle EV of information Mn “no guidance information”. Thus, according to the charging facility guidance system 100, transmission of guidance information is suppressed when it is determined that charging of the electric vehicle EV is unnecessary.

FIG. 8 is a sequence diagram showing an operation example (operation start determination 2) when guide information is transmitted. In the operation example of FIG. 8, the charging facility guidance system 100 uses the information on the route K acquired based on the current location and the destination of the vehicle included in the vehicle information received from the information collection device 200 to perform charging. The operations until the necessity and the necessity of transmitting the guidance information are determined are the same as the operation example of FIG.

In the example of FIG. 8, since it is determined that charging is necessary and it is determined that transmission of guidance information is necessary, the transmission unit 115 of the charging facility guidance system 100 transmits guidance information to the information collection device 200. The charging facility guidance system 100 performs a charging facility selection process as follows when transmitting the guidance information.

First, the charging facility guidance system 100 lists charging facilities (that is, charging facilities that can be detoured) near the route K of the electric vehicle EV to be serviced (step S002-1). For example, the charging facility guidance system 100 extracts charging facilities (stands A-1, B-1, C-1) within a certain distance from the route K from the current location to the destination as shown in FIGS. To do.

Next, the charging facility guidance system 100 confirms (refers to) the power tolerance of the distribution area to which the charging facility is connected at the scheduled time when the electric vehicle EV arrives at each extracted charging facility (step S002-2). ). Then, the charging facility guidance system 100 selects a charging facility that satisfies the predetermined standard for the power tolerance of the distribution area from among the charging facilities listed in step S002-1. For example, as shown in FIG. 11, the charging facility guidance system 100 includes each of charging facilities (stands A-1, B-1, C-1) within a certain distance from a route K from the present location to the destination. The charging facility is selected based on the power tolerance at the estimated arrival time of the electric vehicle EV to the charging facility. For example, when selecting a charging facility whose power tolerance in the distribution area is B or more, the stands A-1 and B-1 are selected.

Then, the charging facility guidance system 100 creates incentive information for charging with the selected charging facility and guidance information including information on the selected charging facility, and passes through the information collecting device 200 to the electric vehicle EV to be serviced. Transmit (step S002-3). In this way, the charging facility guidance system 100 allows the user of the electric vehicle EV to be serviced to be in the power distribution area of the charging facility (stands A-1, B-1, C-1) in FIG. It is possible to avoid charging at a charging facility (stand C-1) with low power tolerance.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to the drawings. In the first embodiment described above, when a destination is input, guidance information is transmitted as necessary. However, the charging facility guidance system 100a in the second embodiment inputs a destination. After that, the above-mentioned guidance information can be transmitted as necessary. Hereinafter, the second embodiment will be described focusing on the differences from the first embodiment.

FIG. 12 is a diagram showing a configuration of a charging facility guidance system according to the second embodiment of the present invention. The main 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.

The vehicle information storage unit 120 stores information on the service-targeted electric vehicle EV including the transmitted guidance information. FIG. 13 is a diagram illustrating an example of vehicle information held in the vehicle information storage unit 120. In the example of FIG. 13, ID (vehicle ID), current location, destination, and information on charging facilities being guided (guidance destination) of each electric vehicle EV are stored. These pieces of information are sequentially updated by the acquisition unit 111a and the transmission unit 115a shown in FIG.

14 and 15 show an operation example (

determinations

1 and 2 during movement) when the electric vehicle EV transmits vehicle information again after leaving the destination in the second embodiment of the present invention. It is a sequence diagram.

As shown in FIG. 14, during traveling, the electric vehicle EV does not transmit vehicle information (step S001-1). On the other hand, when the information collecting apparatus 200 can communicate with the information collecting apparatus 200 when stopped at an arbitrary position, the electric vehicle EV has information on the vehicle information including the electric vehicle ID (vehicle ID), the current location, the destination, and the remaining battery level. The data is retransmitted to the collection device 200 (step S001-2). The information collection device 200 transmits the vehicle information received from the in-vehicle terminal or the like toward the charging facility guidance system 100a.

The transmission unit 115a of the charging facility guidance system 100a determines whether or not it is necessary to transmit the guidance information based on the vehicle information received from the information collection device 200 and the information on the electric vehicle EV stored in the vehicle information storage unit 120. (Step S002a). If it is determined that the guidance information needs to be transmitted, the processes in steps S002-1 to S002-3 in FIG. 8 are performed. As a result, for example, when the charging facility selected again is the same as the charging facility being guided stored in the vehicle information storage unit 120, the charging facility guidance system 100a transmits the guidance information to the information collection device 200. A message Mn indicating that the process is not performed is transmitted.

The information collection device 200 notifies the electric vehicle of information Mn indicating “no guidance information update”. Thus, according to the charging equipment guidance system 100a, transmission of guidance information is suppressed when guidance for the second time is unnecessary.

FIG. 15 is a sequence diagram illustrating an operation example (determination 2 during movement) when it is determined that transmission of guidance information is necessary while the electric vehicle EV is moving. The charging facility guidance system 100a of FIG. 15 determines whether or not the guidance information needs to be transmitted based on the vehicle information received from the information collection device 200 and the information on the electric vehicle EV stored in the vehicle information storage unit 120. The operation up to this is the same as in FIG.

For example, when the destination has changed, the charging facility guidance system 100a calculates the route K again, and acquires the estimated remaining battery level and power tolerance of the electric vehicle EV based on the calculated route K. Then, the charging facility guidance system 100a selects a charging facility based on the estimated remaining battery level and power tolerance, recreates and transmits guidance information. In addition, for example, when there is no change in the destination, but the route is changed, or when the arrival time of the electric vehicle EV at the charging facility is delayed, the charging facility or charging facility to be listed is listed. Changes in power tolerances can occur. As a result, the charging equipment to be guided is also changed. Also in this case, the charging facility guidance system 100a recreates and transmits guidance information.

As described above, in the second embodiment, when there is a change in the destination or route K of the electric vehicle EV or a delay in arrival, the charging facility guidance system 100a appropriately transmits guidance information according to the change. It becomes possible to do.

[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 EV in the distribution area. Guidance information may be created taking into account its presence. Hereinafter, a third embodiment obtained by changing the first embodiment from such a viewpoint will be described in detail with reference to the drawings.

FIG. 16 is a diagram showing a configuration of a charging facility guidance system 100b according to the third embodiment of the present invention. One of the main differences from the charging facility guidance system 100 of the first embodiment shown in FIG. 4 is that the vehicle information acquired by the acquisition unit 111a is stored in the area information storage unit 117a. Another difference is that the determination unit 113a refers to the area information storage unit 117a and considers whether or not charging is necessary in consideration of the number of electric vehicles EV that need charging in the distribution area (in other words, In this case, it is determined whether or not the guidance information needs to be transmitted.

FIG. 17 is an example of distribution area information held in the area information storage unit 117a in the third embodiment. The main difference from the area information storage unit 117 of the first embodiment shown in FIG. 5 is that it is possible to hold the electric vehicle EV existing in the distribution area in the future from the present time and its remaining battery level. Is a point. Note that changes in the number of electric vehicles and the remaining battery level in the distribution area are predicted based on destination information transmitted from each electric vehicle EV, fuel consumption information of each electric vehicle EV, and the like. Further, instead of such prediction processing, past statistical data having the same attribute (day of the week, time, etc.) may be used simply.

FIG. 18 is a diagram for explaining the determination process of whether or not charging is necessary by the determination unit 113a of the third embodiment. For example, as shown in FIG. 18, there are electric vehicles EV1 to EV3 having a charging necessity rank A (however, in order of increasing necessity, A> B> C, and A or more are targets of transmission of guidance information). Think if you are. Here, for example, it is assumed that the power tolerance of the distribution area A in FIG. 18 is equivalent to two electric vehicles. In such a case, as shown in FIG. 19, the determination unit 113a changes the charge necessity rank of the electric vehicle EV1 whose destination is home from the electric cars whose charge necessity rank is A from A to B. .

As a result, the transmission target of the guidance information is two electric vehicles EV2 and EV3. As a result, the charging facility guidance system 100b can prevent a situation in which the stable state of the power system is impaired due to the simultaneous charging of the three electric vehicles EV in the power distribution area A. In addition, when the power tolerance of the distribution area A of FIG. 18 is three electric vehicles, guidance information may be transmitted also to the electric vehicle EV1 whose destination is home. Further, based on the state of the storage battery in each electric vehicle EV, when there is a more urgent electric vehicle, the charging facility guidance system 100b may transmit guidance information toward the electric vehicle EV. Specifically, for example, the charging facility guidance system 100b preferentially transmits guidance information toward an electric vehicle EV that has a small remaining battery capacity, that is, a low SOC (state of charge). In addition, when the power allowance in the distribution area A in FIG. 18 is equivalent to one electric vehicle, the charging facility guidance system 100b includes the electric vehicles EV2 and EV3 in addition to the electric vehicle EV1 whose destination is a home. The guidance information is not transmitted to the electric vehicle EV2 whose charging urgency level is low. In other words, the charging facility guidance system 100b may transmit the guidance information to an electric vehicle (for example, EV3 whose SOC is 10%) having a higher urgency of charging among the electric vehicles EV1 to EV3.

In addition, the said structure in 3rd Embodiment is applicable similarly to the structure which has the vehicle information storage part 120 like 2nd Embodiment.

[Fourth Embodiment]
The electric vehicle located in a certain distribution area may be induced | guided | derived to another distribution area using the structure of above-described 3rd Embodiment. Hereinafter, the fourth embodiment for guiding an electric vehicle to another area using the configuration of the third embodiment will be described.

FIG. 20 is a diagram for explaining the operation of the charging facility guidance system according to the fourth embodiment of the present invention. As shown in FIG. 20, it is assumed that there are two power distribution areas A and B. In addition, in the current distribution area A, there are a large number of electric vehicles EV with a low power tolerance and a small remaining battery level. On the other hand, in the distribution area B, the power tolerance is higher and many of the electric vehicles EV in the area have a sufficient remaining battery capacity, that is, a state where charging is not necessary.

In such a case, the charging facility guidance system 100b according to the fourth embodiment transmits guidance information that guides the user to move to the distribution area B and charge the electric vehicle located in the distribution area A. Can do. The charging facility guidance system 100b does not need to transmit such guidance information triggered by the input of the destination, and may transmit the guidance information at a timing at which it can communicate with each electric vehicle EV. Of course, the charging facility guidance system 100b may guide the charging station in the power distribution area A toward the electric vehicle EV that is difficult to move to the power distribution area B (at this time, to prevent rapid charging or the like). Inverse incentive information is preferably transmitted together).

In addition, based on the electric vehicle existing in the distribution area in the future, the remaining battery level, and the power tolerance of the distribution area shown in FIG. The guidance system 100b may create and transmit guidance information. For example, as shown in FIG. 17, when it is predicted that the power tolerance of the distribution area B after N hours will be low (power tolerance: C), the electricity existing in the distribution area B before that The charging facility guidance system 100b makes the power system in the distribution area B unstable by encouraging charging in the distribution area A with a high power tolerance after N hours (power tolerance: AAA) toward the automobile EV. Can be prevented.

According to the fourth embodiment as described above, the charging facility guidance system 100b can improve the stabilization of the power system by allowing the electric vehicle EV to be charged between distribution areas having different power tolerances. It becomes.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and further modifications, substitutions, and adjustments are possible without departing from the basic technical idea of the present invention. Can be added. For example, the network configuration, the configuration of each element, and the expression form of a message shown in each drawing are examples for helping understanding of the present invention, and are not limited to the configuration shown in these drawings.

Finally, other embodiments of the present invention will be summarized.
[First embodiment]
(Refer to the charging facility guidance system from the first viewpoint above.)
[Second form]
In the charging facility guidance system of the first form,
The transmission unit is a charging facility guidance system that transmits guidance information regarding the charging facility selected in descending order of the power tolerance.
[Third embodiment]
In the charging facility guidance system of the first form,
The said transmission part is the charging equipment guidance system which selects the said charging equipment with which the said electric power tolerance is relatively high compared with the said other charging equipment, and transmits the guidance information regarding the said charging equipment.
[Fourth form]
In the charging facility guidance system according to any one of the first to third aspects,
Furthermore, the acquisition unit has a function of acquiring position information of the electric vehicle from the electric vehicle,
The charging equipment guidance system which selects the charging equipment made into the transmission object of the said guidance information from among these charging equipment based on the positional information on the said electric vehicle.
[Fifth embodiment]
In the charging facility guidance system according to any one of the first to fourth aspects,
Furthermore, the acquisition unit has a function of acquiring destination information of the electric vehicle or route information to the destination from the electric vehicle,
Based on the destination information or route information to the destination, among the charging facilities in the plurality of distribution areas, the transmission target of the guidance information from among the charging facilities in the distribution area along the movement route of the electric vehicle A charging facility guidance system for selecting a charging facility to be used.
[Sixth embodiment]
In the charging facility guidance system of the fifth aspect,
Furthermore, based on the destination information of the electric vehicle or the route information to the destination, a calculation unit for estimating a change in the battery state of the electric vehicle in the process of moving to the destination,
A charging facility guidance system that determines whether or not to transmit guidance information based on a change in a state of charge of a battery of an electric vehicle in the process of moving to the destination and the power tolerance.
[Seventh form]
In the charging facility guidance system according to any one of the fourth to sixth aspects,
A charging facility guidance system that determines whether or not new guidance information needs to be created, triggered by acquisition of a charging state of the battery of the electric vehicle or acquisition of position information of the electric vehicle.
[Eighth form]
In the charging facility guidance system according to any one of the fifth to seventh aspects,
A charging facility guidance system that creates and transmits new guidance information in response to acquisition of the destination information or route information to the destination.
[Ninth Embodiment]
In the charging facility guidance system according to any one of the first to sixth aspects,
The charging facility guidance system, wherein the guidance information includes incentive information for charging based on power tolerance of the charging facility.
[Tenth embodiment]
In the charging facility guidance system according to any one of the first to ninth aspects,
A charging facility guidance system that calculates the power tolerance based on a stable state of a frequency or voltage of a power distribution area where the charging facility is located.
[Eleventh form]
In the charging facility guidance system according to any one of the first to ninth aspects,
A charging facility guidance system that calculates the power tolerance based on a stable state of frequency or voltage in a charging facility in a distribution area where the charging facility is located.
[Twelfth embodiment]
In the charging facility guidance system according to any one of the first to ninth aspects,
A charging facility guidance system that calculates the power tolerance based on power supply and demand information for each distribution area where the charging facility is located received from a predetermined 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 prediction of the load device including the electric vehicle located in the distribution area, calculate the power tolerance at a future time point, and based on the power tolerance at the future time when the electric vehicle arrives at the charging facility, A charging facility guidance system for selecting a charging facility to be included in the guidance information.
[14th form]
In the charging facility guidance system according to any one of the first to thirteenth forms,
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 that need to be charged in the distribution area.
[15th form]
(Refer to the charging facility guidance method from the second viewpoint above.)
[Sixteenth embodiment]
(Refer to the program from the third viewpoint)
Note that the fifteenth to sixteenth embodiments can be developed into the second to fourteenth embodiments as in the first embodiment.

It should be noted that the disclosures of the above patent documents are incorporated herein by reference. Within the scope of the entire disclosure (including claims) of the present invention, the embodiments and examples can be changed and adjusted based on the basic technical concept. 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, etc.) are possible within the scope of the disclosure of the present invention. It is. That is, the present invention of course includes various variations and modifications that can be made by those skilled in the art according to the entire disclosure including the claims and the technical idea. In particular, with respect to the numerical ranges described in this document, any numerical value or small range included in the range should be construed as being specifically described even if there is no specific description.

This application claims priority based on Japanese Patent Application No. 2016-46029 filed on Mar. 9, 2016, the entire disclosure of which is incorporated herein.

DESCRIPTION OF SYMBOLS 11 Acquisition part 12 Calculation part 13 Transmission part 14 Equipment

information storage part

100, 100a, 100b Charging

equipment guidance system

111, 111a Acquisition part 112

Calculation part

113, 113a Determination part 114

Search part

115, 115a Transmission part 116 Equipment information storage part 117 117a Area information storage unit 118 Calculation unit
120 vehicle information storage unit 200 information collecting device EV electric vehicle

Claims

Obtaining means for obtaining a charge state of the battery of the electric vehicle;
Calculating means for calculating power tolerances for electric vehicles in a plurality of distribution areas,
Transmitting means for transmitting guidance information relating to a charging facility selected based on the high power tolerance to a user of an electric vehicle in which the state of charge of the battery satisfies a predetermined condition;
Charging equipment guidance system with
The charging facility guidance system according to claim 1, wherein the transmission means transmits guidance information regarding the charging facilities selected in descending order of the power tolerance.
2. The charging facility guidance system according to claim 1, wherein the transmission unit selects the charging facility having a relatively high power tolerance as compared with the other charging facilities, and transmits guidance information regarding the charging facility.
Furthermore, the acquisition means has a function of acquiring position information of the electric vehicle from the electric vehicle,
The charging facility guidance system according to any one of claims 1 to 3, wherein a charging facility that is a transmission target of the guidance information is selected from the plurality of charging facilities based on position information of the electric vehicle.
Furthermore, the acquisition means has a function of acquiring destination information of the electric vehicle or route information to the destination from the electric vehicle,
Based on the destination information or route information to the destination, among the charging facilities in the plurality of distribution areas, the transmission target of the guidance information from among the charging facilities in the distribution area along the movement route of the electric vehicle The charging equipment guidance system as described in any one of Claim 1 to 4 which selects the charging equipment to perform.
Furthermore, based on the destination information of the electric vehicle or the route information to the destination, comprising means for estimating a change in the battery charge state of the electric vehicle in the process of moving to the destination,
6. The charging facility guidance system according to claim 5, wherein whether or not to send guidance information is determined based on a change in a charging state of a battery of an electric vehicle in the process of moving to the destination and the power tolerance.
The charging facility guidance system according to any one of claims 4 to 6, wherein it is determined whether or not new guidance information needs to be created, triggered by acquisition of a charging state of the battery of the electric vehicle or acquisition of position information of the electric vehicle. .
The charging facility guidance system according to any one of claims 5 to 7, wherein new guidance information is created and transmitted in response to acquisition of the destination information or 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 a power tolerance of the charging facility.
The charging facility guidance system according to any one of claims 1 to 9, wherein the power tolerance is calculated based on a stable state of a frequency or a voltage of a power source 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 tolerance is calculated based on a stable state of a frequency or a voltage of a power source 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 tolerance is calculated based on power supply and demand information for each distribution area where the charging facility is located received from a predetermined power server.
Based on the power consumption prediction of the load device including the electric vehicle located in the distribution area, calculate the power tolerance at a future time point, and based on the power tolerance at the future time when the electric vehicle arrives at the charging facility, The charging facility guidance system according to any one of claims 10 to 12, wherein a charging facility to be included in the guidance information is selected.
14. The method according to claim 1, wherein whether or not to transmit guidance information to an electric vehicle located in the power distribution area is determined based on the number of electric vehicles that need to be charged in the power distribution area. The charging facility guidance system according to one.
Get the charge status of the electric car battery,
Calculate power tolerances for electric vehicles in multiple distribution areas,
Charging that is selected based on the level of power tolerance for a user of an electric vehicle whose charging state satisfies the predetermined condition with reference to information on charging facilities arranged in the plurality of power distribution areas Send information about equipment,
Charging facility guidance method.
In the computer that constitutes the charging equipment guidance system,
Processing to obtain the charge status of the battery of the electric vehicle;
A process of calculating power tolerances for electric vehicles in a plurality of distribution areas,
Charging that is selected based on the level of power tolerance for a user of an electric vehicle whose charging state satisfies the predetermined condition with reference to information on charging facilities arranged in the plurality of power distribution areas A process of sending guidance information about the equipment;
A program storage medium for storing a computer program for executing the program.