JP2021197765A - Vehicle allocation system - Google Patents

Abstract

To improve a success rate of a request.SOLUTION: A vehicle allocation system (100) comprises: acquisition means (18) for acquiring vehicle information indicating a vehicle position and a destination of each of a plurality of electric motor cars (3, 4) which can charge a battery with electric power from outside and supply electric power of the battery to outside; calculation means (14) for calculating an index value indicating possibility that a driver accepts a charging/discharging requests in relation to a facility from a facility position and a type of the facility, and from the vehicle position and the destination indicated by the vehicle information; and determination means (14) for determining an electric motor car to which a charging/discharging request is to be transmitted out of the plurality of electric motor cars on the basis of the calculated index value.SELECTED DRAWING: Figure 1

Description

The present invention relates to the technical field of a vehicle dispatch system.

As a system of this type, for example, a vehicle closest to the facility or having a short travel time to the facility in order to charge the backup storage battery installed in the facility in the event of a power failure with the vehicle-mounted storage battery of the vehicle. However, a system for transmitting guidance information to the facility as a charging request has been proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2013-027163

In the technique described in Patent Document 1, if the driver of the automobile receiving the guidance information does not follow the guidance information, the guidance information is transmitted to another vehicle again. Then, it may not be possible to realize the optimum charging plan. That is, there is room for improvement in the technique described in Patent Document 1.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle allocation system capable of improving the success rate of a request.

The vehicle allocation system according to one aspect of the present invention is an acquisition means for acquiring vehicle information indicating the vehicle position and destination of each of a plurality of electric vehicles capable of charging a battery with external power and supplying power of the battery to the outside. A calculation means for calculating an index value indicating the possibility that the driver accepts the charge / discharge request related to the facility from the facility position and type of the facility, and the vehicle position and destination indicated by the vehicle information, and the above. It is provided with a determination means for determining an electric vehicle for transmitting the charge / discharge request among the plurality of electric vehicles based on the calculated index value.

According to the vehicle allocation system, the success rate of charge / discharge request can be improved.

It is a block diagram which shows the structure of the vehicle dispatch system which concerns on embodiment. It is a flowchart which shows the operation of the charge / discharger which concerns on embodiment. It is a flowchart which shows the determination method of the electric vehicle which makes charge / discharge request which concerns on embodiment. It is a flowchart which shows the other determination method of the electric vehicle which makes charge / discharge request which concerns on embodiment.

<Overview>
An embodiment related to the vehicle allocation system will be described with reference to FIGS. 1 to 4. The vehicle allocation system 100 according to the embodiment is a vehicle allocation system for utilizing an electric vehicle such as an electric vehicle or a fuel cell vehicle as a distributed power source. For example, in the event of a disaster or the like, an electric vehicle is being used as an emergency power source. Further, for example, a surplus of electric power generated by using natural energy such as sunlight is stored in an electric vehicle. On the other hand, it is difficult for users of electric vehicles (particularly individuals) to know where there is a need for power supply. The vehicle allocation system 100 is configured to notify the driver as a user of the electric vehicle of a place where there is a need for power supply by transmitting a request to the electric vehicle.

In FIG. 1, the vehicle allocation system 100 includes a charger / discharger 1, an external server 2, and electric vehicles 3 and 4.

The electric vehicle 3 includes a communication unit 31 and a connector 32 that can be connected to the charge / discharge connector 30 of the charge / discharger 1. Like the electric vehicle 3, the electric vehicle 4 includes a communication unit 41 and a connector 42. Each of the communication units 31 and 41 transmits the position information, the destination information, and the like related to the corresponding electric vehicles 3 or 4 to the external server 2. The communication units 31 and 41 can also communicate with the charger / discharger 1.

The charging / discharging device 1 includes an EMS (Energy Management System) 10, a PCS (Power Control Unit) 20, and a charging / discharging connector 30. The PCS 20 is connected to a system used for distribution of electric power of a large-scale centralized power source such as a relatively large-scale power plant, or to a smart grid. The PCS 20 is also connected to the load provided in the facility.

The EMS 10 includes a power usage status observation unit 11, a prediction unit 12, a required charge / discharge amount calculation unit 13, a charge / discharge request vehicle determination unit 14, a control unit 15, a charge / discharger usage schedule storage unit 16, a vehicle data storage unit 17, and communication. It is configured to include a portion 18.

The PCS 20 converts, for example, DC power and AC power, transmits power supplied through the charge / discharge connector 30 to a load or system, or transmits power supplied from the system to a load or the like. do. The power usage status observation unit 11 observes the flow of power via the PCS 20.

Information related to the electric vehicle (for example, position information, destination information, etc.) acquired from the external server 2 via the communication unit 18 is stored in the vehicle data storage unit 17. Reservation information relating to the usage schedule of the charge / discharge connector 30 (in other words, the schedule of charging or discharging the battery of the electric vehicle using the charge / discharger 1) is stored in the charge / discharger usage schedule storage unit 16. This reservation information may be transmitted directly from the electric vehicle to the charging / discharging device 1, or may be transmitted from the electric vehicle to the charging / discharging device 1 via the external server 2.

The prediction unit 12 predicts the power demand based on the observation result by the power usage status observation unit 11 and the reservation information stored in the charge / discharger usage schedule storage unit 16. As for the method of forecasting the power demand, the existing technology can be applied, so the detailed description thereof will be omitted.

The control unit 15 controls the PSC 20 based on the observation result by the power usage status observation unit 11 and the power demand predicted by the prediction unit 12.

The required charge / discharge calculation unit 13 calculates the charge / discharge amount required by the charge / discharger 1 based on the power demand predicted by the prediction unit 12. The charge / discharge request vehicle determination unit 14 requests charging or discharging (charge / discharge request) based on the charge / discharge amount calculated by the required charge / discharge amount calculation unit 13 and the information related to the electric vehicle stored in the vehicle data storage unit 17. Hereinafter, an electric vehicle that performs (referred to as “charge / discharge request”) as appropriate is determined.

Next, the operation when the charging / discharging device 1 makes a charging / discharging request to the electric vehicle (here, at least one of the electric vehicles 3 and 4) will be described with reference to the flowchart of FIG. In FIG. 2, the required charge / discharge calculation unit 13 calculates the charge / discharge amount required by the charge / discharger 1 (step S101). The charge / discharge request vehicle determination unit 14 determines whether or not the calculated charge / discharge amount is zero (step S102).

When it is determined in the process of step S102 that the charge / discharge amount is zero (step S102: Yes), the operation shown in FIG. 2 ends. In this case, it is not necessary to request charge / discharge. Then, after a predetermined time (for example, several seconds) has elapsed, the process of step S101 is performed. That is, the operation shown in FIG. 2 is repeatedly performed according to the cycle according to the predetermined time.

When it is determined in the process of step S102 that the charge / discharge amount is not zero (step S102: No), the charge / discharge request vehicle determination unit 14 obtains information related to the electric vehicle stored in the vehicle data storage unit 17. Based on this, a candidate for an electric vehicle for which charge / discharge request is made is selected (step S103).

Next, the charge / discharge request vehicle determination unit 14 determines an electric vehicle for which charge / discharge request is made from the selected electric vehicle candidates (step S104). After that, the charge / discharge request vehicle determination unit 14 makes a charge / discharge request to the electric vehicle determined in the process of step S104 via the communication unit 18 (step S105). The charge / discharge request vehicle determination unit 14 stores information related to the electric vehicle that made the request (step S106). The information may be stored in the vehicle data storage unit 17.

The charge / discharge request vehicle determination unit 14 determines whether or not the electric vehicle that made the request has accepted the charge / discharge request (step S107). If it is determined in the process of step S107 that the charge / discharge request has not been accepted (step S107: No), the charge / discharge request vehicle determination unit 14 shall be in step S103, except for the electric vehicle that has already made the charge / discharge request. Perform processing.

When it is determined in the process of step S107 that the charge / discharge request has been accepted (step S107: Yes), the charge / discharge request vehicle determination unit 14 fills the usage schedule of the charge / discharge device 1 by the electric vehicle that made the request. It is stored in the discharger usage schedule storage unit 16 (step S108). Then, after a predetermined time has elapsed, the process of step S101 is performed.

<How to determine the electric vehicle to request charge / discharge>
Whether or not to accept the charge / discharge request from the charge / discharge device 1 depends on the driver of the electric vehicle that has received the charge / discharge request. Therefore, in order to improve the possibility that the charge / discharge request is accepted by the driver, it is necessary to select an electric vehicle on which the driver who is likely to accept the charge / discharge request is on board.

(First decision method)
The first determination method of the determination method of the electric vehicle for which the charge / discharge request is made will be described with reference to the flowchart of FIG. In the first determination method, the electric vehicle for which the charge / discharge request is made is determined mainly by referring to the destination included in the information related to the electric vehicle stored in the vehicle data storage unit 17. The operation shown in FIG. 3 corresponds to the process of step S104 described above. In other words, a specific example of the process of step S104 is the operation shown in FIG.

In FIG. 3, the charge / discharge request vehicle determination unit 14 acquires a distance list between the current location of each of the plurality of electric vehicles such as the electric vehicles 3 and 4 and the charge / discharge device 1 (step S201). This distance list may be generated based on the position information included in the information related to the electric vehicle stored in the vehicle data storage unit 17, for example.

The charge / discharge request vehicle determination unit 14 adds a “destination-like” column to the distance list acquired in the process of step S201 (for example, adds a variable related to the destination similarity) (step S202). After that, the charge / discharge request vehicle determination unit 14 selects one electric vehicle from among the plurality of electric vehicles for which the destination similarity is not set (for example, the variable related to the destination similarity has no value) (for example, the one having no value in the variable related to the destination similarity). Step S203).

Next, the charge / discharge request vehicle determination unit 14 acquires the destination of one electric vehicle selected in the process of step S203 (step S204). This destination may be acquired from the destination included in the information related to the electric vehicle stored in the vehicle data storage unit 17. The charge / discharge request vehicle determination unit 14 determines the type of destination acquired in the process of step S204 (step S205). Since existing technology can be applied to the method of determining the type of destination, the detailed description thereof will be omitted.

Next, the charge / discharge request vehicle determination unit 14 determines whether or not the type of the destination determined in the process of step S205 and the type of the installation location of the charge / discharger 1 are similar (step S206). .. Whether or not the type of the destination and the type of the installation location of the charger / discharger 1 are similar may be determined by referring to, for example, the similarity determination table.

When it is determined in the process of step S206 that the type of the destination and the type of the installation location of the charger / discharger 1 are similar (step S206: Yes), the charge / discharge request vehicle determination unit 14 determines the destination. The similarity is set to "1" (step S207). On the other hand, when it is determined in the process of step S206 that the type of the destination and the type of the installation location of the charger / discharger 1 are not similar (step S206: No), the charge / discharge request vehicle determination unit 14 determines. The destination similarity is set to "0" (step S208).

After that, the charge / discharge request vehicle determination unit 14 determines whether or not the destination-similar row is filled for all of the plurality of electric vehicles (step S209). If it is determined in step S209 that it is not filled (step S209: No), the process of step S203 is performed again.

When it is determined in the process of step S209 that the vehicle is buried (step S209: Yes), the charge / discharge request vehicle determination unit 14 determines the distance to the charge / discharge device 1 among the electric vehicles having a destination similarity of "1". Selects the closest candidate electric vehicle as the request target (step S210).

(Second decision method)
The second determination method of the determination method of the electric vehicle for which the charge / discharge request is made will be described with reference to the flowchart of FIG. In the first determination method, the electric vehicle for which the charge / discharge request is made is determined mainly by referring to the past charge / discharge results of each electric vehicle. The operation shown in FIG. 4 corresponds to the process of step S104 described above. In other words, a specific example of the process of step S104 is the operation shown in FIG.

In FIG. 4, the charge / discharge request vehicle determination unit 14 acquires a list including charge / discharge results of each of a plurality of electric vehicles such as electric vehicles 3 and 4, and position information on the day before a designated time (step S301). The position information on the day before the designated time may be acquired, for example, based on the position information included in the information related to the electric vehicle stored in the vehicle data storage unit 17.

The charge / discharge request vehicle determination unit 14 adds a “charge / discharge record” column to the list acquired in the process of step S301 (for example, adds a variable related to the charge / discharge record) (step S302). After that, the charge / discharge request vehicle determination unit 14 selects one electric vehicle from among a plurality of electric vehicles for which the charge / discharge record is not set (for example, the variable related to the charge / discharge record has no value). Step S303).

Next, the charge / discharge request vehicle determination unit 14 refers to the information related to the past charge / discharge request of one electric vehicle selected in the process of step S303, and determines whether or not the ratio of responding to the charge / discharge request is large. Is determined (step S304). Information related to past charge / discharge requests may be stored in, for example, the vehicle data storage unit 17.

When it is determined in the process of step S304 that the ratio of responding to the charge / discharge request is large (step S304: Yes), the charge / discharge request vehicle determination unit 14 sets the charge / discharge record to "1" (step S305). .. On the other hand, when it is determined in the process of step S304 that the ratio of responding to the charge / discharge request is low (step S304: No), the charge / discharge request vehicle determination unit 14 sets the charge / discharge record to "0" (step). S306).

After that, the charge / discharge request vehicle determination unit 14 determines whether or not the charge / discharge record column is filled for all of the plurality of electric vehicles (step S307). If it is determined in step S307 that it is not filled (step S307: No), the process of step S303 is performed again.

When it is determined in the process of step S307 that the vehicle is buried (step S307: Yes), the charge / discharge request vehicle determination unit 14 indicates the position information of the electric vehicle having the charge / discharge record of "1" on the previous day. The candidate electric vehicle having the shortest distance from the position to the charger / discharger 1 is selected as the request target (step S308).

<Technical effect>
In the charge / discharge device 1, the electric vehicle for which the charge / discharge request is made is determined in consideration of the type of the driver's destination or the charge / discharge record. When the type of installation location of the charger / discharger 1 and the type of destination of the driver are similar, the driver may go to the installation location of the charger / discharger 1 as compared with the case where both types are not similar. (Ie, it is likely to respond to charge / discharge requests). Alternatively, a driver that has responded to a charge / discharge request in the past (that is, a driver that has a charge / discharge record) is more likely to respond to the charge / discharge request than a driver that has no charge / discharge record. Therefore, according to the vehicle allocation system 100, the success rate of the charge / discharge request can be improved.

<Modification example>
(1) The charger / discharger 1 may be connected to, for example, a solar panel, a storage battery, a generator, a fuel cell, or the like.

(2) When the place where the charging / discharging device 1 is installed is a commercial facility, a privilege such as a coupon that can be used in the commercial facility may be given to the driver who responds to the charging / discharging request.

Aspects of the invention derived from the embodiments and modifications described above will be described below.

The vehicle allocation system according to one aspect of the invention is an acquisition means for acquiring vehicle information indicating the vehicle position and destination of each of a plurality of electric vehicles capable of charging a battery with external power and supplying power of the battery to the outside. , The calculation means for calculating the index value indicating the possibility that the driver accepts the charge / discharge request related to the facility from the facility position and type of the facility, and the vehicle position and destination indicated by the vehicle information, and the above calculation. It is provided with a determination means for determining an electric vehicle for transmitting the charge / discharge request among the plurality of electric vehicles based on the index value.

In the above-described embodiment, the "communication unit 18" corresponds to an example of the "acquisition means", the "charge / discharge request vehicle determination unit 14" corresponds to an example of the "calculation means" and the "determination means", and the "objective". “Similar to the ground” and “actual charge / discharge” correspond to examples of “index values”.

The present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of claims and within the scope not contrary to the gist or idea of the invention that can be read from the entire specification. It is also included in the technical scope of the present invention.

1 ... Charge / discharge device, 2 ... External server, 3, 4 ... Electric vehicle, 10 ... EMS, 20 ... PCS, 30 ... Charge / discharge connector, 11 ... Power usage status observation unit, 12 ... Prediction unit, 13 ... Required charge / discharge Quantity calculation unit, 14 ... Charge / discharge request vehicle determination unit, 15 ... Control unit, 16 ... Charge / discharger usage schedule storage unit, 17 ... Vehicle data storage unit, 18 ... Communication unit, 100 ... Vehicle allocation system

Claims (1)

An acquisition means for acquiring vehicle information indicating the vehicle position and destination of each of a plurality of electric vehicles capable of charging the battery with external electric power and supplying the electric power of the battery to the outside.
A calculation means for calculating an index value indicating the possibility that the driver accepts the charge / discharge request related to the facility from the facility position and type of the facility and the vehicle position and destination indicated by the vehicle information.
A determination means for determining an electric vehicle for transmitting the charge / discharge request among the plurality of electric vehicles based on the calculated index value.
A vehicle dispatch system characterized by being equipped with.

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