WO2023162332A1 - Vehicle charging facility recommendation device and vehicle charging facility recommendation method - Google Patents

Abstract

Provided are a vehicle charging facility recommendation device and a vehicle charging facility recommendation method with which it is possible for a user to select an optimal charging facility at which an EV can be charged without the user becoming aware of a wait time.　This vehicle charging facility recommendation device comprises: a map information storage unit for storing facility type information, position information, estimated stay time information, and charging facility information that pertains to a charging facility; a reception unit for receiving, from a vehicle, vehicle identification information, position information, destination information, facility usage type information that pertains to the type of facility used in the past, and a state of charge; a search unit for searching for a facility to present to the vehicle; and an output unit for outputting the searched facility to the vehicle. The search unit: searches for facility information on a vehicle route according to the vehicle position information and destination information; selects a facility matching the facility usage type information according to the searched facility information; infers a required charging amount according to the vehicle identification information, the travel route to the facility, and the state of charge; and determines a facility to recommend according to the required charging amount, the estimated stay time information, and the charging facility information.

Description

Vehicle charging facility recommendation device and vehicle charging facility recommendation method

The present invention relates to a vehicle charging facility recommendation device and a vehicle charging facility recommendation method for recommending an optimal charging facility according to the destination of an electric vehicle.

In recent years, interest in electric vehicles, particularly BEVs (Battery Electric Vehicles), has rapidly increased from the viewpoint of environmental conservation and sustainable energy use. Techniques have been developed to suggest charging facilities to users for charging BEVs.
For example, Patent Literature 1 discloses a technology for extracting charging stations that exist within a travelable distance based on the remaining battery capacity of an electric vehicle, and transmitting information on charging stations with particularly short waiting times to the electric vehicle as optimal charging stations. disclosed.

Patent No. 5419759

Patent Document 1 aims at shortening the waiting time of the user.
However, chargers installed in charging facilities include types such as so-called normal chargers and quick chargers, but in the conventional technology, users concentrate on quick chargers. Therefore, users have to wait for charging, and owners of charging facilities have been unable to recoup their investment in ordinary chargers, which has hindered the spread of EVs.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle charging facility recommendation device and a vehicle charging facility recommendation method that enable a user to select an optimal charging facility capable of charging an EV without being conscious of the waiting time. and

(1) The vehicle charging facility recommendation device of the present invention (for example, the "vehicle charging facility recommendation device 30" described later) includes facility type information, location information of the facility, and estimated stay time information related to the estimated stay time of the facility. A map information storage unit (for example, a "map information storage unit 321" described later) that stores charging facility information related to the charging facility associated with the facility as facility information; a receiving unit (for example, a "recommendation request input unit 311" described later) that receives information, destination information, facility usage type information relating to the type of facility that the vehicle has used in the past, and the state of charge of the vehicle; a search unit (for example, a “facility search unit 312” to be described later) that searches for a stopover facility to be presented to the side; and an output unit (for example, an “output unit 313” to be described later) that outputs the searched stopover facility to the vehicle. wherein the search unit searches for the facility information existing on the route through which the vehicle passes from the location information of the vehicle and the destination information, and matches the facility use type information from the searched facility information. and the required charging amount is estimated from the identification information of the vehicle, the distance traveled to the facility, and the charging state, and the estimated required charging amount, the estimated stay time information, and the charging facility information. The recommended stop-off facilities are determined from the

According to (1) above, it is possible for the user to select the optimum charging facility where the EV can be charged without being conscious of the waiting time.

(2) The search unit described in (1) estimates, as the required charge amount, the charge amount that restores the charge state, which is expected to decrease due to the distance traveled to the facility, to at least the charge state at the start of travel. You may do so.

According to the above (2), it is possible to eliminate the anxiety of running out of electricity by recovering more than the decrease due to running.

(3) The search unit described in (1) or (2) may further determine the order of the recommended visiting facilities according to the degree of matching between the estimated stay time and the required charging amount. .

According to (3) above, it is possible for the user to select the optimum charging facility that allows charging of the EV without being conscious of the waiting time.

(4) The search unit described in (3) may further obtain the degree of matching based on the charging time when the estimated stay time is equal to or less than the required charging amount.

According to (4) above, the user does not need to move the vehicle to prevent the vehicle from remaining connected to the charger after charging is completed.

(5) The charging facility information described in (1) or (2) includes usage upper limit time information indicating the usage upper limit time of the charging facility, and the search unit determines whether the estimated stay time is equal to or less than the usage upper limit time. The stop-off facility may be determined as follows.

According to (5) above, it is possible for the user to select the optimum charging facility that allows charging of the EV without being conscious of the waiting time.

(6) The map information storage unit described in (1) or (2) further stores congestion degree information indicating the congestion degree of the facility as the charging facility information, and the search unit performs the The order of the recommended drop-in facilities may be determined.

According to (6) above, it is possible for the user to select the optimum charging facility that allows charging of the EV without being conscious of the waiting time.

(7) The vehicle charging facility recommendation method of the present invention is a vehicle charging facility recommendation method that causes a computer to operate as a vehicle charging facility recommendation device, and includes facility type information, location information of the facility, and estimated stay time at the facility. a map information storing step of storing as facility information information on an estimated stay time and charging facility information on a charging facility associated with the facility; a receiving step of receiving facility usage type information relating to the type of facility that the vehicle has used in the past and the state of charge of the vehicle; a searching step of searching for a stopover facility to be presented to the vehicle; and an output step of outputting to a vehicle, wherein the searching step searches for the facility information existing on the route through which the vehicle passes from the location information of the vehicle and the destination information, and extracts the facility information from the searched facility information. A facility that matches the facility usage type information is selected, and a required charging amount is estimated from the identification information of the vehicle, the distance traveled to the facility, and the charging state, and the estimated required charging amount and the estimated stay time are estimated. The recommended drop-off facility is determined from the information and the charging facility information.

According to the above method (7), the same effect as the vehicle charging facility recommendation device of (1) can be obtained.

　According to the present invention, it is possible for the user to select the optimum charging facility where the EV can be charged without being conscious of the waiting time.

1 is a block diagram showing the basic configuration of an entire vehicle charging facility recommendation system that is an embodiment of the present invention; FIG. 1 is a functional block diagram showing the functional configuration of an in-vehicle navigation device according to an embodiment of the present invention; FIG. It is a figure which shows an example of the display of the facility information in embodiment of this invention. 1 is a functional block diagram showing the functional configuration of a mobile terminal according to an embodiment of the present invention; FIG. 1 is a functional block diagram showing the functional configuration of a vehicle charging facility recommendation device according to an embodiment of the present invention; FIG. It is a figure which shows an example of the facility information in embodiment of this invention. It is a figure which shows the operation example of the facility search part in embodiment of this invention. 1 is a functional block diagram showing the functional configuration of a charging facility information processing device according to an embodiment of the present invention; FIG. 4 is a flow chart showing the basic operation of the vehicle charging facility recommendation device according to the embodiment of the present invention;

<Overall configuration of vehicle charging facility recommendation system 1>
A preferred embodiment of the vehicle charging facility recommendation system of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows the overall configuration of a vehicle charging facility recommendation system 1. As shown in FIG.

As shown in FIG. 1, the vehicle charging facility recommendation system 1 includes an on-vehicle navigation device 10 mounted on an electric vehicle 50, a mobile terminal 20 of the user of the electric vehicle 50, a vehicle charging facility recommendation device 30, and a vehicle 50. , and the charging facility information processing device 40 . In this embodiment, unless otherwise specified, a battery electric vehicle (BEV) is also simply referred to as an electric vehicle, an electric vehicle, or a vehicle. These devices and terminals are connected via a communication network 60 so as to be able to communicate with each other.
In addition, although information transmitted and received by each of these devices and each terminal is also shown in the figure, this information is only an example. In this embodiment, information other than those shown may be transmitted and received.

The in-vehicle navigation device 10 has, for example, a function of providing route guidance to a destination such as a facility input or selected by the user, and a function of measuring the location information of the in-vehicle navigation device 10 (that is, the location information of the vehicle 50). In-vehicle navigation device 10 also includes identification information (for example, license plate number, VIN (vehicle identification number), etc.) of mounted vehicle 50, and facility usage type related to the type of facility that the user of vehicle 50 has used in the past. It has a function of storing information (for example, facility name, facility location, facility type, length of stay, date and time of use, etc.). The in-vehicle navigation device 10 also has a function of acquiring SoC (State of Charge) indicating the state of charge of the vehicle 50 .
For example, while the user is driving the vehicle 50, the in-vehicle navigation device 10 sends a charging facility recommendation request including the identification information of the vehicle 50, the determined position information, the destination information, the facility usage type information, and the charging state. It is transmitted to the vehicle charging facility recommendation device 30 . Then, the in-vehicle navigation device 10 provides the user of the vehicle 50 with a charging station recommended as a stopover facility existing on the route (passing route) to the destination using the vehicle charging facility recommendation system 1. It has a function to display facilities that have facilities. The in-vehicle navigation device 10 may display recommended facility information and provide route guidance from the current position to the facility.

The mobile terminal 20 is a mobile terminal of a user who uses the vehicle 50 . Application software for cooperating with the vehicle 50 used by the user is preferably installed in the mobile terminal 20 . The mobile terminal 20 may have functions similar to those of the in-vehicle navigation device 10 .
The mobile terminal 20 can acquire identification information, location information, destination information, facility usage type information, and charging information of the vehicle 50 . Then, similarly to the in-vehicle navigation device 10, the portable terminal 20 sends the charging facility recommendation request including the acquired identification information, position information, destination information, facility usage type information, and charging state of the vehicle 50 to the vehicle charging facility recommendation request. Send to device 30 .
The mobile terminal 20 can be implemented by a smart phone, a mobile phone, a tablet terminal, a notebook computer, or other portable electronic devices.
The user can communicate with the vehicle charging facility recommendation device 30 via the in-vehicle navigation device 10 mounted in the vehicle 50 or the mobile terminal 20 owned by the user. In this embodiment, the user can transmit and receive data to and from the vehicle charging facility recommendation device 30 from the vehicle 50 or the mobile terminal 20 .
Therefore, when viewed from the vehicle charging facility recommendation device 30, the vehicle 50 or the mobile terminal 20 of the user of the vehicle 50 can be recognized as "communication with the vehicle side". In the present embodiment, "the vehicle 50 or the mobile terminal 20 of the user of the vehicle" is also referred to as the "vehicle side" unless otherwise specified.

The vehicle charging facility recommendation device 30 performs processing unique to the present embodiment, including identification information, location information, destination information, facility usage type information, and charging state of the vehicle 50 included in the charging facility recommendation request received from the vehicle. , facility information on facilities having charging facilities (for example, restaurants, cafes, etc.), and an optimal facility where the user can charge the vehicle 50 without being conscious of the waiting time during charging. is selected and recommended to the user as a stopover facility.
The vehicle charging facility recommendation device 30 can be realized, for example, by incorporating software unique to the present embodiment into a general-purpose server device. Here, the server device may be a distributed system composed of one computer or a plurality of computers.

The charging facility information processing device 40 is installed, for example, in each facility having charging facilities, and manages the usage status of the charging facilities provided in the charging facilities. Here, the usage status of the charger (charging equipment) includes, for example, being in use (charging the vehicle), being vacant, and having a reservation. The charging facility information processing device 40 periodically or upon request reports to the vehicle charging facility recommendation device 30 the usage status of the charging facilities of each charging facility.
Further, when the vehicle side selects, as a charging destination, the charging facility provided in the charging facility of the stop-over facility recommended by the vehicle charging facility recommendation device 30, the charging facility information processing device 40 receives information from the vehicle charging facility recommendation device 30 that Receive information about vehicles that use the charging facility. By doing so, the charging facility information processing device 40 puts the charging facility of the charging facility into a reserved state.
Further, when the vehicle 50 using the facility recommended by the vehicle charging facility recommendation device 30 completes charging in the charging facility, the vehicle charging facility recommendation device 30 informs the vehicle charging facility recommendation device 30 that the vehicle 50 has completed charging in the charging facility. We will notify you to that effect. By doing so, for example, the vehicle charging facility recommendation device 30 can create billing information for the charging facility.

As described above, the vehicle 50 is equipped with the in-vehicle navigation device 10 and is capable of communicating with the vehicle charging facility recommendation device 30 .

The communication network 60 is implemented by a network such as the Internet or a mobile phone network, or a network combining these.
The overall configuration of the vehicle charging facility recommendation system 1 has been described above.
Next, each configuration will be described.

<Functional Blocks Provided in Vehicle-mounted Navigation Device 10>
The functional blocks of the in-vehicle navigation device 10 will be described with reference to the block diagram of FIG.
As shown in FIG. 2 , the vehicle-mounted navigation device 10 includes a control section 11 , a storage section 12 , a communication section 13 , a sensor section 14 , a display section 15 and an input section 16 .

The control unit 11 is composed of an arithmetic processing unit such as a microprocessor, and controls each unit that constitutes the in-vehicle navigation device 10 . Details of the control unit 11 will be described later.

The storage unit 12 is composed of a semiconductor memory or the like, and stores a control program called firmware or an operating system, identification information of the vehicle 50 for the vehicle charging facility recommendation device 30, position information, destination information, facility usage type, and so on. and a charging facility recommendation request including information and charging state, and the vehicle charging facility recommendation device 30 transmits facility information of a facility having a charging facility that exists on the route (passing route) to the destination and is recommended as a stopover facility. A program for executing a function of receiving and displaying, and transmitting, for example, a reservation request to the vehicle charging facility recommendation device 30 when the displayed facility (charging facility) is selected, or route guidance to the selected facility Various information such as a program for executing a function to perform the function and other information such as map information are stored. In the figure, map information (navigation map) 121, identification information 122, position information 123, and facility usage type information 124 are illustrated as information stored in the storage unit 12. FIG.

The map information (navigation map) 121 is used for navigation, for example, and is a map representing roads with nodes and links.
The identification information 122 is information for identifying the vehicle 50 and includes an identification ID for uniquely identifying the vehicle, vehicle name information and/or vehicle model information. As will be described later, the battery capacity of the vehicle 50 is uniquely associated with the vehicle name information and/or the vehicle model information, and the vehicle charging facility recommendation device 30, based on the charging facility recommendation request, The battery capacity of the vehicle can be obtained.
The position information 123 is the position information of the in-vehicle navigation device 10 positioned by the sensor unit 14 (that is, the position information of the vehicle 50). It is assumed that the position information 123 includes not only the information indicating the measured position but also the positioning time, which is the time when the positioning was performed.
The facility usage type information 124 is information relating to the type of facility that the vehicle 50 has used in the past, and stores, for example, the facility name, facility location, facility type, length of stay, date and time of use, and the like.
The identification information 122 , the location information 123 , and the facility usage type information 124 are information transmitted to the vehicle charging facility recommendation device 30 .

The communication unit 13 has a DSP or the like, and complies with standards such as LTE (Long Term Evolution), 4G (4th Generation), 5G (5th Generation), and standards such as Wi-Fi (registered trademark), and communicates with the communication network 60. Wireless communication or wired communication with another device (for example, the vehicle charging facility recommendation device 30) and the vehicle side is realized via. The communication unit 13 sends a charging facility recommendation request including, for example, a connection request from the vehicle, identification information of the vehicle 50, position information, destination information, facility usage type information, charging state, etc. to the vehicle charging facility recommendation device 30. It is used for transmitting and conversely receiving facility information of facilities having charging facilities provided from the vehicle charging facility recommendation device 30 .
However, there is no particular limitation on the data transmitted/received between the communication unit 13 and other devices, and information other than these information may be transmitted/received.

The sensor unit 14 is composed of, for example, a GPS (Global Positioning System) sensor, a gyro sensor, an acceleration sensor, and the like. The sensor unit 14 has a function as position detection means for detecting position information, receives GPS satellite signals from the GPS sensor, and measures the position information (latitude and longitude) of the vehicle-mounted navigation device 10 .

The display unit 15 is configured by a display device such as a liquid crystal display or an organic electroluminescence panel. The display unit 15 receives an instruction from the control unit 11 and displays an image. The information displayed by the display unit 15 includes facility information of a facility having a charging facility recommended as a stopover facility, which is present on the route (passing route) to the destination and output from the vehicle charging facility recommendation device 30, and Various user interfaces and the like are included.

The input unit 16 is composed of input devices such as physical switches called ten keys and a touch panel provided over the display surface of the display unit 15 . By outputting to the control unit 11 a signal based on an operation input from the input unit 16, for example, a user pressing a ten key or touching a touch panel, a selection operation or the like by the user can be realized.

In addition, although not shown, the in-vehicle navigation device 10 can also be equipped with a speaker, a microphone, and the like. By doing so, information can be output by voice from a speaker, and various selections and instructions by the driver input by voice via a microphone can be input to the control unit 11 by voice recognition technology.

Next, the details of the control unit 11 will be described. The control section 11 is composed of a microprocessor having a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), I/O (Input/Output), and the like. The CPU executes each program read from the ROM or the storage unit 12, reads information from the RAM, the ROM, and the storage unit 12 during the execution, writes information to the RAM and the storage unit 12, It exchanges signals with the communication unit 13 , the sensor unit 14 , the display unit 15 and the input unit 16 . In this way, the processing in this embodiment is realized by cooperation between hardware and software (programs).

The control unit 11 includes a route guidance unit 111, an SoC acquisition unit 112, an information transmission unit 113, a facility information presentation unit 114, and a charging facility reservation transmission unit 115 as functional blocks.

The route guidance unit 111 is a part that performs route guidance processing to a destination such as a general facility input or selected by the user. The route guidance processing to the destination is equivalent to the route guidance processing in a general car navigation system, and is a well-known function for those skilled in the art, and detailed description thereof will be omitted.
Note that the route guidance unit 111 can also provide route guidance to a facility recommended as a stopover facility provided by the vehicle charging facility recommendation device 30 as a destination.

The SoC acquisition unit 112 acquires the SoC as the state of charge of the vehicle 50 from an ECU (Electronic Control Unit) (not shown) of the vehicle 50, for example.

The information transmission unit 113 transmits a charging facility recommendation request including identification information, location information, destination information, facility usage type information, and state of charge (SoC) of the vehicle 50 to the vehicle charging station through wireless communication using the communication unit 13. It is transmitted to the facility recommendation device 30 .

The facility information presentation unit 114 receives, from the vehicle charging facility recommendation device 30, facility information of facilities having charging facilities that are recommended as drop-off facilities existing on the route (passage route) to the destination, and displays, for example, the display unit 15. can be provided to the user by outputting to This allows the user to select, for example, by tapping a position indicating the facility on the display unit 15 (having a touch panel).
Specifically, based on the facility information received from the vehicle charging facility recommendation device 30, the facility information presentation unit 114 displays on the display unit 15, for example, a route to the destination on the map as shown in FIG. It is possible to display the location of the facility with the facility information added to it. If there are multiple facilities having multiple charging facilities near the vehicle 50, the display unit 15 may display the multiple facility information in a scrollable manner.

When the user selects a facility based on the facility information received from the vehicle charging facility recommendation device 30, the charging facility reservation transmission unit 115 transmits the identification information of the facility selected by the user (the facility has a plurality of charging facilities). (including the charging facility ID, if applicable) can be transmitted to the vehicle charging facility recommendation device 30 . In this case, if the charging time and charging time are designated by the user, these information may also be transmitted.
The configuration of the in-vehicle navigation device 10 has been described above.

<Functional Blocks of Mobile Terminal 20>
Next, functional blocks included in the mobile terminal 20 will be described with reference to the block diagram of FIG.
As shown in FIG. 4 , the mobile terminal 20 includes a control section 21 , a storage section 22 , a communication section 23 , a sensor section 24 , a display section 25 and an input section 26 .
Here, the control unit 21, the storage unit 22, the communication unit 23, the sensor unit 24, the display unit 25, and the input unit 26 have functions equivalent to those of the same-named functional blocks included in the vehicle-mounted navigation device 10 described above. have. That is, by replacing the wording of "vehicle navigation device 10" with "portable terminal 20" in the description of the above-described in-vehicle navigation device 10, each functional block of the mobile device 20 will be described, so redundant description will be omitted. do.
Note that when the user carries the mobile terminal 20 and gets into the vehicle 50 and turns on the activation switch of the vehicle 50 , the mobile terminal 20 is connected (paired) with the vehicle 50 , and at least the identification information of the vehicle 50 and the purpose of the vehicle 50 are stored. The ground information, the facility usage type information, and the state of charge may be shared. Alternatively, when the vehicle 50 is equipped with a telematics device, the mobile terminal 20 uses a known method (for example, Japanese Patent No. 5174296) to transmit data from a server (not shown) connected to the communication network 60 to at least the vehicle 50. The identification information, the destination information, the facility usage type information, and the state of charge may be acquired.
Moreover, it is preferable that the mobile terminal 20 of the user is registered in advance in the vehicle charging facility recommendation device 30 in association with the identification information of the vehicle 50 used by the user. Specifically, for example, it is preferable that the login ID for logging into the vehicle charging facility recommendation device 30 is associated with the identification information of the vehicle 50 . By doing so, the vehicle charging facility recommendation device 30 can authenticate both the user's portable terminal 20 and the vehicle 50 as "vehicle side".
The configuration of the mobile terminal 20 has been described above.

<Functional Blocks Included in Vehicle Charging Facility Recommendation Device 30>
Next, functional blocks included in the vehicle charging facility recommendation device 30 will be described with reference to the block diagram of FIG.

As shown in FIG. 5, the vehicle charging facility recommendation device 30 includes a control unit 31, a storage unit 32, a communication unit 33, a display unit 34, and an input unit 35.

The control unit 31 is composed of an arithmetic processing unit such as a microprocessor, and controls each unit that constitutes the vehicle charging facility recommendation device 30 . Details of the control unit 31 will be described later.

The storage unit 32 is composed of a semiconductor memory or the like, and stores control programs called firmware or an operating system, various programs such as programs for performing vehicle charging facility recommendation processing, and various other information such as map information. is stored. Therefore, as shown in FIG. 5, storage units such as a map information storage unit 321 and a vehicle information storage unit 322 are secured in the storage unit 32 .
These storage units may be secured individually in the storage unit 32, or may be configured integrally.

The map information storage unit 321 stores facility information including facility type information, facility position information, estimated stay time information regarding the estimated stay time of the facility, and charging facility information regarding the charging facility attached to the facility.
FIG. 6 is a diagram showing an example of facility information.
As shown in FIG. 6, facility information includes, for example, type information including facility name and facility type (category type), location information specified by telephone number, address, business hours, latitude and longitude, and the like. Estimated stay time information regarding the estimated stay time, which is the average stay time of visitors to the facility (for example, 20 minutes for fast food, 50 minutes for restaurants, 30 minutes for roadside stations, 60 minutes for museums, etc.); Charging facility information including the presence or absence of a charging facility associated with the facility, identification information of the charging facility (facility ID), output performance (charging speed) of the charger (charging facility) provided at the charging facility, etc., and the charging facility It includes reservation information indicating the reservation status and congestion level information indicating the congestion level of the charging facility.
If the facility has a plurality of chargers (charging facilities), the charging facility information includes identification information (charger ID) for identifying the charger (charging facility) for each charger (charging facility). It shall include the performance of the charger.
In addition, the charging facility information includes usage upper limit time information regarding the usage upper limit time when a usage upper limit time (for example, 30 minutes) is set so that the charger is not occupied by one vehicle. may be

Here, the charging facility and the charger (charging facility) will be briefly described below.
Charging facilities are classified based on the installation location of chargers (charging facilities), and include external charging, excluding home charging (charging at private places such as homes). For external charging, for example, public facilities along the main road when traveling long distances such as SAs and PAs on expressways, roadside stations, car dealers selling electric vehicles, convenience stores and supermarkets that are frequently visited on a daily basis. , facilities such as shopping malls and restaurants, lodging facilities such as hotels for long-term parking, and paid parking lots for temporarily parking automobiles.
The facility ID is unique identification information assigned to each facility, and preferably the facility ID is assigned to each facility type. Here, an example of the facility type is the store type of the charging facility described above.
Here, as the identification information (facility ID) of the charging facility, the identification information of the general facility may be applied. Each facility ID has location information (map information) that specifies the location of the facility, for example, by latitude and longitude.
The map information includes display map data for displaying the roads and the background of the road map, location information and type information of nodes (for example, road intersections, bends, endpoints, etc.), It may include road network data including location information and type information of links that are routes, and link cost data relating to cost information (for example, distance, required time, etc.) of all links.

Charging facilities are equipped with chargers (also called "charging facilities") that can be used by users, but some charging facilities are equipped with multiple chargers (charging facilities). Furthermore, some charging facilities are equipped with multiple types of chargers (charging facilities) (for example, normal chargers, quick chargers, etc., which will be described later). Therefore, it is desirable to assign a charger ID (charging facility ID), which is unique identification information, to each charger (charging facility) installed in the charging facility. The output performance (charging speed) of the charger (charging facility) is preset and associated with each charger ID (charging facility ID). Next, the output performance (charging speed) of the charger included in the facility information will be specifically described.

The output performance (charging speed) of the charger (charging facility) will be described. Chargers (charging equipment) are roughly divided into normal charging and quick charging. Normal charging is, for example, charging with an output performance of 3 kW using an AC power supply (200 V/15 A or 100 V/30 A). In addition to the 3 kW charger, there is also a high-power normal charger that outputs a high output of 6 kW. On the other hand, rapid charging is charging that outputs, for example, 20 kW or more using a DC power supply, but has various output performances. charger, rapid type charger with output performance of 30 kW to 50 kW, ultra-rapid type charger with output performance of 70 kW, ultra-fast type charger with output performance of 90 kW or more, etc. can. It should be noted that the above classifications and types are only examples, and quick charging is divided into stages by those skilled in the art.
As the charging facility information, output performance information (charging speed information) of the charging facility is set corresponding to each charger ID (charging facility ID) installed in the charging facility. As an example of the output performance (charging speed) of the charger (charging equipment), as exemplified above, for example, normal charging of 3 kWh and 6 kWh, medium-speed type charger having output performance of 20 kW to 30 kW, 40 kW A rapid type charger with an output capacity of 50 kW, an ultra-rapid type charger with an output capacity of 70 kW, and an ultra-fast type charger with an output capacity of 90 kW or more.
At charging facilities, medium-speed chargers corresponding to so-called route charging are installed at convenience stores, roadside stations, home centers, etc., and long-range chargers such as SAs and PAs on expressways are installed at charging facilities based on the behavior of users at the charging facilities. Rapid type chargers are often installed in public facilities along main roads when traveling long distances. Also, in facilities such as hotels that correspond to so-called destination charging, there is a tendency to install many ordinary chargers.

Next, the vehicle information storage unit 322 will be explained.
The vehicle information storage unit 322 stores identification information (vehicle identification ID) of the user's vehicle 50 registered in the vehicle charging facility recommendation device 30, and vehicle name information and/or vehicle name information linked to the identification information (vehicle identification ID). Information that associates model information with battery capacity information of the vehicle is stored.
By doing so, the vehicle side (for example, the vehicle 50 or the mobile terminal 20 of the user of the vehicle 50) is logged into the vehicle charging facility recommendation device 30 by, for example, identification information (vehicle identification ID), and the vehicle side (for example, the vehicle 50 Alternatively, when a charging facility recommendation request including identification information of the vehicle 50 is transmitted from the portable terminal 20 of the user of the vehicle 50, the recommendation request input unit 311 described later inputs the identification information (vehicle identification ID) of the vehicle. The linked vehicle name information and/or vehicle type information and battery capacity information of the vehicle can be acquired, and the identification information and position information of the vehicle 50 and the battery capacity information of the vehicle can be obtained by the facility search unit 312. can be provided to
The vehicle information storage unit 322 stores identification information (vehicle identification ID) of the electric vehicle, and vehicle name information and/or vehicle model information associated with the identification information (vehicle identification ID). And/or by storing in the storage unit 32 a battery capacity table by vehicle model information (not shown) in which the vehicle model information and the battery capacity information are associated with each other, the recommendation request input unit 311, which will be described later, can display the information by vehicle model information. The battery capacity of the vehicle may be obtained by referring to a battery capacity table (not shown). In this case, a battery capacity table by vehicle model information (not shown) may be used as an internal table of the recommendation request input unit 311, which will be described later.

The communication unit 33 has a DSP or the like, and complies with standards such as LTE (Long Term Evolution), 4G (4th Generation), 5G (5th Generation) and standards such as Wi-Fi (registered trademark), and communicates with the communication network 60. Wireless communication or wired communication with other devices, for example, the vehicle side, and wireless or wired communication with the charging facility information processing device 40 are realized.
The communication unit 33 is used, for example, to receive a connection request from the vehicle side and a charging facility recommendation request including identification information of the vehicle 50, and conversely, to transmit facility information to be recommended to the vehicle side. . In addition, the communication unit 33, for example, in order to transmit information related to the vehicle 50 that uses the charging facility owned by the facility to the charging facility information processing device 40, conversely, the usage status of the charging facility and the Used to receive charge completion information.
However, there is no particular limitation on the data transmitted/received between the communication unit 33 and other devices, and information other than these information may be transmitted/received.

Next, details of the control unit 31 will be described. The control unit 31 is configured by a microprocessor having a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), I/O (Input/Output), and the like. The CPU executes each program read from the ROM or the storage unit 32, reads information from the RAM, the ROM, and the storage unit 32 during execution, writes information to the RAM and the storage unit 32, It exchanges signals with the communication unit 33 , the display unit 34 and the input unit 35 . In this way, the processing in this embodiment is realized by cooperation between hardware and software (programs).
In this way, the control unit 31 executes each program to cause the vehicle charging facility recommendation device 30, which is a computer, to function as predetermined means (hereinafter collectively referred to as "vehicle charging facility recommendation control unit").
Further, the control unit 31 executes each program to cause the vehicle charging facility recommendation device 30 to execute a predetermined step (hereinafter collectively referred to as "vehicle charging facility recommendation step").
The functions of the control unit 31 will be described below from the viewpoint of the vehicle charging facility recommendation control unit. A description based on the vehicle charging facility recommended control step (method) is omitted because it can be described by replacing "part" with "step".

The control unit 31 includes a facility interface unit 310, a recommendation request input unit 311, a facility search unit 312, an output unit 313, and a charging facility reservation input unit 314 as functional blocks.

<Facility Interface Unit 310>
The facility interface unit 310 periodically acquires the usage status of the chargers (charging facilities) provided in each charging facility, for example, from the charging facility information processing device 40 that manages the chargers (charging facilities) in the charging facilities of each facility. and stored in the storage unit 32 . Here, the usage status of the charger (charging equipment) includes, for example, whether the charger is in use (charging), available, and whether or not there is a reservation.
Further, when the vehicle selects a facility having a charging facility as a charging destination, the facility interface unit 310 may transmit information about the vehicle to the charging facility information processing device 40 . By doing so, facilities having charging facilities can plan to use chargers (charging facilities).
Further, when the vehicle has completed charging at the charging facility of the facility, the facility interface unit 310 can obtain a notification from the charging facility information processing device 40 that the vehicle has completed charging at the charging facility of the facility. can. In this case, the facility interface unit 310 may notify the charging facility information processing device 40 of the reward information as the reward for customer referral.

<Recommendation request input unit 311>
The recommendation request input unit 311 receives a charging facility recommendation request including identification information, position information, destination information, facility usage type information, and charging state of the vehicle 50 from the vehicle side via the communication unit 33 . Here, the identification information of the vehicle 50 is associated with the vehicle name information and/or vehicle model information of the vehicle. By referring to the vehicle information storage unit 322, the recommendation request input unit 311 can acquire the battery capacity information of the vehicle based on the vehicle name information and/or the vehicle model information of the vehicle.
The recommendation request input unit 311 provides the facility search unit 312 with identification information, location information, destination information, facility usage type information, state of charge, and battery capacity information of the vehicle received from the vehicle. You may do so.

<Facility Search Unit 312>
The facility search unit 312 searches the map information storage unit 321 for each vehicle 50 that has transmitted the charging facility recommendation request based on the location information, destination information, facility usage type information, state of charge, and battery capacity information of the vehicle 50. By referring to the facility information stored in , a facility having a charging facility that exists on the route to the destination of each vehicle 50 is searched.
FIG. 7 is a diagram showing an operation example of the facility search unit 312. As shown in FIG. In FIG. 7, the starting point is the home of the previous day before driving, but the starting point may be a place other than the home. may be the current position of the vehicle 50.
As shown in FIG. 7, for example, when the user operates the mobile terminal 20 to search for a route to a destination, the facility search unit 312 detects the state of charge (SoC) of the vehicle 50 acquired from the mobile terminal 20. ) and the battery capacity information, the battery capacity of the vehicle 50 is obtained. Based on the destination information, the facility search unit 312 searches for facilities (cafés, restaurants, etc.) that exist within a predetermined range on the route to the destination. ) as a POI (Point of Interest).
Here, the predetermined range may be a range with a width of a predetermined distance (for example, 2 km) with respect to the route to the destination, or may be an administrative division on the route. Also, the predetermined range may be specified from the vehicle side.

The facility search unit 312 selects a facility whose facility information matches the facility usage type information from the searched facilities. The facility search unit 312, for each selected facility, based on the travel distance to the facility and the obtained state of charge (SoC) and battery capacity of the vehicle 50, is expected to be fully charged or decrease due to travel to the facility. A necessary charging amount for recovering the charging state to at least the charging state at the start of running is estimated.
Then, the facility search unit 312 estimates the charging time for each selected facility based on the output performance (charging speed) of the charging facility (charger) of the facility and the required charging amount. In addition, since it may be difficult for the output performance (charging speed) of the charging facility (charger) to exhibit 100% performance at all times, the charging time is determined by, for example, the output performance ( charging speed) may be estimated by correcting it with a predetermined correction value (for example, 80%). Note that the charging time may be corrected.
The facility search unit 312 calculates the degree of matching, which is the degree of matching between the estimated stay time in the estimated stay time information of each facility stored in the map information storage unit 321 and the estimated charging time, and the calculated match degree is high. Decide the order of recommended facilities as drop-in facilities. That is, as shown in FIG. 7, the facility search unit 312 recommends and determines, for example, the facility 1 and the facility 2 that are closer to the starting point (the required charging amount is smaller) in this order. Since Facility 3 is farther from the starting point than Facilities 1 and 2, the required amount of charge is 30 kW, but the recommended stay time is only 15 minutes. Therefore, the facility search unit 312 preferably does not recommend facility 3 as a stopover facility.
Facility search unit 312 temporarily stores a set of facility information searched for each vehicle 50 that has received the charging facility recommendation request in storage unit 32 for each vehicle 50, and notifies output unit 313, which will be described later.
By doing so, it becomes possible for the user of the vehicle 50 to select the optimum charging facility capable of charging the vehicle 50 without being conscious of the waiting time.

Note that if a maximum usage time (for example, 30 minutes) is set for the charging facility owned by the facility, the facility search unit 312 refers to the maximum usage time information in the charging facility information, The following facilities may be recommended and determined as drop-in facilities.
Further, the facility search unit 312 may determine the order so as to preferentially recommend charging facilities that are not congested based on the degree of congestion information in the facility information.
In addition, the facility search unit 312 obtains and obtains the degree of matching for each facility based on the charging time when the estimated stay time is equal to or less than the required charging amount, that is, the charging time when the estimated stay time is 80% of the required charging amount. The order in which each facility is recommended may be determined according to the degree of matching.
By doing so, the user can get to the vehicle 50 connected to the charger before charging is complete, preventing the vehicle 50 from remaining connected to the charger after charging is complete. , to avoid disturbing other users.

<Output unit 313>
The output unit 313 outputs and provides a set of facility information of facilities having charging facilities as drop-off facilities searched by the facility search unit 312 to the vehicle side.
Specifically, for example, as shown in FIG. 3, the output unit 313 outputs the location of a facility having a charging facility recommended as a stopover facility using an icon or a display tile, and outputs the content of the facility information. can be
Note that if the facility having the charging facility cannot be output, a selection as to whether or not to expand the search range of the facility may be output.

<Charging facility reservation input unit 314>
Charging facility reservation input unit 314 inputs facility information selected by the user from the vehicle side, and provides facility interface unit 310 with the vehicle information and the selected facility information. If the charging time and charging time are specified by the user, this information is also provided to the facility interface unit 310 .
The configuration of the vehicle charging facility recommendation device 30 has been described above.

Finally, the charging facility information processing device 40 will be described. As described above, the charging facility information processing device 40 is installed, for example, in each facility having charging facilities, and manages the usage status of the charging facilities provided in the charging facilities.
As shown in FIG. 8 , the charging facility information processing device 40 includes a control section 41 , a storage section 42 , a communication section 43 , a display section 44 and an input section 45 .

The control unit 41 is composed of an arithmetic processing device such as a microprocessor, and controls each unit that constitutes the charging facility information processing device 40 . The control unit 41 will be described later.

The storage unit 42 stores the usage status (e.g., in use (charging the vehicle), charging completed, vacant, reservation availability, etc.) of each charger (charging facility) provided in the charging facility in the facility to be managed. It is stored together with the person information and the date and time information. In addition, in the usage status of the charger (charging facility), if the user from the vehicle charging facility recommendation device 30 is a user, the storage unit 42 stores information indicating that the user is a user from the vehicle charging facility recommendation device 30. remembered. Further, when the user from the vehicle charging facility recommendation device 30 is a user, the storage unit 42 stores billing information (customer referral fee) sent from the vehicle charging facility recommendation device 30 .

For example, in order to receive information about the vehicle 50 that uses the charging facility from the vehicle charging facility recommendation device 30, the communication unit 43 conversely informs the vehicle charging facility recommendation device 30 of the usage status of the charger (charging facility). and used to transmit charging completion information.

The control unit 41 includes a charging facility interface unit 410 and an information processing interface unit 411 as functional blocks.

The charging facility interface unit 410 periodically acquires the charger (charging facility) usage status from each charger (charging facility) of the charging facility in the facility to be managed, and stores it in the storage unit 42 .

The information processing interface unit 411 reports the usage status of the charger (charging facility) to the vehicle charging facility recommendation device 30 periodically or upon request.
Further, when the vehicle side selects the charging facility provided in the charging facility in the facility, which is output from the vehicle charging facility recommendation device 30, as the charging destination, the charging facility interface unit 410 selects the charging facility from the vehicle charging facility recommendation device 30. receive information about the vehicle 50 that uses the By doing so, the information processing interface unit 411 puts the charging facility of the charging facility into a reserved state. Further, the information processing interface unit 411 may receive reward information as a reward for customer referral from the vehicle charging facility recommendation device 30 .
Conversely, when the vehicle 50 using the charging facility recommended by the vehicle charging facility recommendation device 30 completes charging at the charging facility, the information processing interface unit 411 instructs the vehicle charging facility recommendation device 30 to notifies that charging has been completed at the charging facility.
The configuration of the charging facility information processing device 40 has been described above.

As described above, the embodiment of each functional unit of the vehicle charging facility recommendation system 1 of the present invention is described as the in-vehicle navigation device 10, the portable terminal 20, the vehicle charging facility recommendation device 30, the charging facility information processing device 40, and the charging facility. The explanation is based on the configuration. It should be noted that the embodiment of each functional unit included in the vehicle charging facility recommendation device 30 of the present invention can be distributed in one computer, in one location, or distributed in several locations and distributed in a large number of computers interconnected by a communication network. can be deployed to run as It can also be configured using a plurality of virtual computers on the cloud.

<Operation of this embodiment>
Next, the operation of the vehicle charging facility recommendation device 30 of the present embodiment during the vehicle charging facility recommendation process will be described with reference to the flowchart of FIG. 9 . Here, FIG. 9 shows a case where the vehicle charging facility recommendation device 30 receives a charging facility recommendation request from the vehicle side and then provides the vehicle side with facility information of recommended facilities among facilities having charging facilities. 10 is a flowchart showing operations during charging facility recommendation processing;
In the processing flow of FIG. 9, the vehicle charging facility recommendation device 30 assumes that identification information (vehicle identification ID) of the vehicle 50, vehicle name information and/or vehicle model information, and facility information have already been registered. Also, although not shown, the vehicle charging facility recommendation device 30 periodically acquires the usage status of charging facilities from the charging facility information processing device 40 in the background.
In the processing flow below, if a facility having a charging facility cannot be searched for within a predetermined range on the route to the destination, the processing flow is such that the predetermined range is widened and the search is performed again. do not have. If a facility having a charging facility cannot be found within a predetermined range on the route to the destination, the search process is stopped and the vehicle is notified that a facility having a charging facility could not be found (not shown). You may make it

In step S10, the vehicle charging facility recommendation device 30 (recommendation request input unit 311) is logged in from the vehicle side, and the charging facility including identification information, location information, destination information, facility usage type information, and charging state of the vehicle 50 is entered. Receive recommendation requests.

In step S11, the vehicle charging facility recommendation device 30 (recommendation request input unit 311) acquires the battery capacity of the vehicle 50 that has transmitted the charging facility recommendation request by referring to a battery capacity table by vehicle type information (not shown). do.

In step S12, the vehicle charging facility recommendation device 30 (facility search unit 312) searches for facilities having charging facilities that exist within a predetermined range on the route to the destination of the vehicle 50 as POIs. A set of facility information of facilities matching the facility use type information (hereinafter also referred to as a “first set”) is temporarily stored in the storage unit 32 .

In step S13, the vehicle charging facility recommendation device 30 (facility search unit 312) determines whether the first set stored in step S12 is an empty set. If the first set is an empty set, the vehicle charging facility recommendation device 30 (facility search unit 312) proceeds to step S17. On the other hand, if it is not an empty set, the vehicle charging facility recommendation device 30 (facility search unit 312) proceeds to step S14.

In step S14, the vehicle charging facility recommendation device 30 (facility search unit 312) determines the travel distance to the facility, the acquired state of charge (SoC), and the battery capacity of the vehicle 50 for each facility included in the first set. Based on this, estimate the amount of charge required to restore the state of charge, which is expected to decrease due to full charge or travel to the facility, to at least the state of charge at the start of travel, and the output performance of the facility's charging facility (charger) ( The charging time is estimated based on the charging speed) and the required charging amount.

In step S15, the vehicle charging facility recommendation device 30 (facility search unit 312) calculates the degree of matching between the estimated stay time for each facility and the charging time estimated in step S14, and selects the visiting facilities in descending order of the calculated degree of matching. A set of recommended facility information (hereinafter referred to as a “second set”) is determined and temporarily stored in the storage unit 32 .

In step S16, vehicle charging facility recommendation device 30 (output unit 313) sends the second set of facilities having charging facilities as stop-off facilities determined in step S15 to vehicle 50 that has received the charging facility recommendation request in step S11. Output and provide.

In step S17, the vehicle charging facility recommendation device 30 (facility search unit 312) expands the predetermined range, and proceeds to step S12.

In this way, the facility information display unit 114 (or 214) on the vehicle side can display the facilities in the recommended order on the display unit 15 (or 25) as shown in FIG. For example, it is possible to reserve a charging facility provided by the charging facility of the selected facility.
As described above, after receiving the charging facility recommendation request from the vehicle, the vehicle charging facility recommendation device 30 can provide the vehicle with the facility information of the facility having the charging facility, so that the user can reduce the waiting time. It is possible to select the optimum charging facility that can charge the EV without being conscious of it.
Then, the user charges the vehicle 50 while performing activities (for example, having tea at a cafe, having a meal at a restaurant, shopping at a shopping mall, etc.) in accordance with the searched stop-off facility. You can charge without feeling the waiting time inside.

<About hardware and software>
Each device included in the vehicle charging facility recommendation system 1 described above can be realized by hardware, software, or a combination thereof. In addition, the input/output method for recommending a facility having a charging facility, which is performed by the cooperation of each of the devices included in the vehicle charging facility recommendation system 1, is also realized by hardware, software, or a combination thereof. can be done. Here, "implemented by software" means implemented by one or more computers reading and executing one or more programs.

Programs can be stored and supplied to computers using various types of non-transitory computer readable media. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (e.g., flexible discs, magnetic tapes, hard disk drives), magneto-optical recording media (e.g., magneto-optical discs), CD-ROMs (Read Only Memory), CD- R, CD-R/W, semiconductor memory (eg, mask ROM, PROM (programmable ROM), EPROM (erasable PROM), flash ROM, RAM (random access memory)). The program may also be delivered to the computer on various types of transitory computer readable medium. Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves. Transitory computer-readable media can deliver the program to the computer via wired channels, such as wires and optical fibers, or wireless channels.

Although the above-described embodiments are preferred embodiments of the present invention, they are not intended to limit the scope of the present invention only to the above-described embodiments. can be implemented.

<Modification 1>
The functional configuration of the embodiment described above may be modified. That is, the functional configurations of FIGS. 2, 3, 5, and 8 are merely examples, and do not limit the functional configuration of this embodiment. That is, it is sufficient for each device to have a function capable of executing a series of processes related to the vehicle charging facility recommendation function of the present invention as a whole. , but not limited to the examples of FIGS.

Also, the description of the devices for realizing these functional configurations in the above-described embodiment is merely an example. For example, in the above-described embodiment, the vehicle charging facility recommendation device 30 is implemented by one server device or the like. may be Also, each function of the vehicle charging facility recommendation device 30 may be implemented using a virtual server function or the like on the cloud.

Further, the display unit 34 and the input unit 35 described as being included in the vehicle charging facility recommendation device 30 may be realized by a separate device from the device that realizes other parts of the vehicle charging facility recommendation device 30. For example, a device that implements the control unit 31, the storage unit 32, and the communication unit 33, and a device that implements the display unit 34 and the input unit 35 are separately provided, and the two devices communicate via the communication network 60. may be configured.

<Modification 2>
As described above, the charging facility information stored in the storage unit 32 of the vehicle charging facility recommendation device 30 can be obtained from, for example, a charging facility terminal device (not shown) installed at the charging facility, and the administrator of the charging facility. It can be configured so that it can be created and updated as appropriate according to the input of .
For example, after logging into the vehicle charging facility recommendation device 30 from a charging facility terminal device (not shown) and determining that the user ID is valid in the vehicle charging facility recommendation device 30, the vehicle charging facility recommendation device 30 However, by transmitting an edit processing screen for creating and updating the charging facility information to the charging facility terminal device (not shown), the charging facility information can be edited at the charging facility terminal device (not shown). , the charging facility information can be appropriately created and updated according to the input of the manager of the charging facility.

<Modification 3>
Further, for example, in the above-described embodiment, the vehicle charging facility recommendation device 30 recommends a facility having a charging facility based on the charging facility recommendation request from the vehicle 50, but the present invention is not limited to this. For example, the vehicle charging facility recommendation device 30 recommends a facility recommended as a stop-off facility if the facility itself does not have a charging facility, but there is a nearby charging facility (for example, within a radius of 200 m). good too. In this case, the vehicle charging facility recommendation device 30 may store the distance (for example, 150 m) from the facility to the charging facility in the map information storage unit 321 as the charging facility information of the facility information. Then, the vehicle charging facility recommendation device 30 (facility search unit 312) determines the order so as to preferentially recommend facilities closer to the charging facility existing within a predetermined range on the route to the destination. preferably.

<Modification 4>
Further, for example, in the above-described embodiment, the vehicle charging facility recommendation device 30 receives charging information including identification information, location information, destination information, facility usage type information, and charging status of the vehicle 50 from the vehicle-mounted navigation device 10 or the mobile terminal 20. Received a facility recommendation request, but is not limited to this. For example, the vehicle charging facility recommendation device 30 can be used for the vehicle 50 input by the user from the vehicle navigation device 10 or the portable terminal 20 along with identification information, location information, destination information, facility usage type information, and charging state of the vehicle 50. A charging facility recommendation request may be received that includes occupant information of the occupant on board (eg, gender of the occupant, age of the occupant, hobbies and interests of the occupant, etc.).
By doing so, the vehicle charging facility recommendation device 30 can recommend a facility having a charging facility that suits the preference of the occupant of the vehicle 50 as a stopover facility.

1 vehicle charging facility recommendation system 10 in-vehicle navigation device 20 mobile terminal 11, 21 control unit 111, 211 route guide unit 112, 212 SoC acquisition unit 113, 213 information transmission unit 114, 214 facility information presentation unit 115, 215 charging facility reservation transmission Units 12, 22 Storage unit 121, 221 Map information 122, 222 Identification information 123, 223 Position information 124, 224 Facility usage type information 13, 23 Communication unit 14, 24 Sensor unit 15, 25 Display unit 16, 26 Input unit 30 Vehicle Charging facility recommendation device 31 control unit 310 facility interface unit 311 recommendation request input unit 312 facility search unit 313 output unit 314 charging facility reservation input unit 32 storage unit 321 map information storage unit 322 vehicle information storage unit 40 charging facility information processing device 50 vehicle (electric vehicle, electric vehicle)
60 communication network (network)

Claims (7)

1. a map information storage unit that stores, as facility information, facility type information, location information of the facility, estimated stay time information related to the estimated stay time of the facility, and charging facility information related to charging facilities attached to the facility;
   a receiving unit for receiving identification information of the vehicle, location information of the vehicle, destination information, facility usage type information related to the type of facility used by the vehicle in the past, and a charging state of the vehicle from the vehicle;
   a search unit for searching for a stopover facility to be presented to the vehicle;
   an output unit that outputs the searched stop-off facility to the vehicle,
   The search unit searches for the facility information existing on the route through which the vehicle passes from the location information of the vehicle and the destination information, and selects a facility that matches the facility usage type information from the searched facility information. Further, the required charging amount is estimated from the identification information of the vehicle, the travel distance to the facility, and the charging state, and the recommended charging facility information is based on the estimated required charging amount, the estimated stay time information, and the charging facility information. A vehicle charging facility recommendation device that determines a stopover facility.
2. 2. The vehicle charging facility according to claim 1, wherein said search unit estimates, as said required charging amount, an amount of charge that restores said state of charge, which is expected to decrease due to the distance traveled to said facility, to at least the state of charge at the start of travel or more. Recommended equipment.
3. The vehicle charging facility recommendation device according to claim 1 or 2, wherein the search unit further determines the order of the recommended drop-off facilities according to the degree of matching between the estimated stay time and the required charging amount.
4. The vehicle charging facility recommendation device according to claim 3, wherein the search unit further obtains the degree of matching based on the charging time when the estimated stay time is equal to or less than the required charging amount.
5. the charging facility information includes usage upper limit time information indicating the usage upper limit time of the charging facility;
   3. The vehicle charging facility recommendation device according to claim 1, wherein said search unit determines said drop-off facility for which said estimated stay time is equal to or less than said upper limit usage time.
6. The map information storage unit further stores congestion level information indicating a congestion level of the facility as the charging facility information,
   3. The vehicle charging facility recommendation device according to claim 1, wherein said search unit determines an order of said drop-off facilities to recommend based on said congestion level information.
7. A vehicle charging facility recommendation method for causing a computer to operate as a vehicle charging facility recommendation device, comprising:
   a map information storing step of storing, as facility information, facility type information, location information of the facility, estimated stay time information related to the estimated stay time of the facility, and charging facility information related to charging facilities attached to the facility;
   a receiving step of receiving identification information of the vehicle, location information of the vehicle, destination information, facility usage type information relating to a type of facility that the vehicle has used in the past, and a charging state of the vehicle from the vehicle side;
   a search step of searching for a stopover facility to be presented to the vehicle;
   an output step of outputting the retrieved stop-off facility to the vehicle;
   The searching step searches for the facility information existing on the route through which the vehicle passes from the location information of the vehicle and the destination information, and selects a facility matching the facility usage type information from the searched facility information. Further, the required charging amount is estimated from the identification information of the vehicle, the travel distance to the facility, and the charging state, and the recommended charging facility information is based on the estimated required charging amount, the estimated stay time information, and the charging facility information. Vehicle Charging Facility Recommendation Method for Determining Stopover Facilities.

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