JP6218269B2 - Electric vehicle charging station guidance system - Google Patents

Description

  The present invention relates to a guidance system for guiding various information of a charging station for guiding a vehicle to a charging station for charging a battery of an electric vehicle.

  In an electric vehicle that runs by driving a motor with electricity supplied from a battery, it is necessary to charge the battery with electricity. Charging of the battery uses a chemical reaction, and it is difficult to perform charging in a short time like refueling of a gasoline automobile. If the load due to charging is increased, the battery life is shortened. Therefore, in general, the charging time for the travel distance of the electric vehicle is very long compared to the refueling time for the travel distance of the gasoline vehicle.

  By the way, in a charging stand for charging a battery of an electric vehicle, other vehicles cannot be charged until charging of one vehicle is completed, and it is necessary to wait in the vicinity of the charging stand. As described above, since the charging time of an electric vehicle tends to be long, such standby is not convenient for the user and causes a significant reduction in space efficiency. In addition, although it is considered to add a charging station to the standby place, there are cases where the power cost increases due to an increase in facility introduction cost and the practice of subscribing to power depending on the maximum power consumption. In view of this, a system has been proposed in which standby time information of the charging station is provided to reduce the standby time.

  For example, in Patent Document 1, as a system that can provide accurate standby time information, a standby camera on a charging stand is confirmed by a monitoring camera, a required charging time is obtained from each vehicle, a required charging time is calculated, and a vehicle being charged The required charging time of the waiting vehicle is added to the remaining charging time to obtain a total charging waiting time and presented to each charging station. The user selects a charging station that minimizes the standby time, and as a result, the standby time of the charging station is leveled and relaxed.

  Patent Document 2 describes that in a system that guides a charging station over a wide area, the operation time of the charging station changes because it takes a long time to reach the charging station of the vehicle. Therefore, it is desired that more reliable information can be given to the driver of the electric vehicle. In view of this, there has been proposed a system that sequentially provides the corrected operation status corresponding to the arrival time of the vehicle for each charging station.

  There has also been proposed a charging station guidance system for an electric vehicle that is used after a charging station is reserved so as to reduce the waiting time of the vehicle at the charging station.

  For example, Patent Document 3 proposes a charging station guidance system for an electric vehicle that, upon receiving a reservation application, predicts the time required for charging based on data relating to past charging use of the vehicle and creates a reservation schedule. Yes. When using a charging station immediately or within a predetermined time, a charging station with a short standby time can be identified and guided based on the current operating status of the charging station. On the other hand, in the previous reservation schedule, the performance and capacity of the battery installed in the electric vehicle, the deterioration due to the usage period and usage status, the remaining capacity of the battery, etc. are not constant, so the charging time for each battery is predicted It is not possible to make it accurately. Therefore, a reservation schedule is created based on data relating to past charging use of the vehicle, the standby time at the charging station is reduced, and the operating efficiency of the charging station is improved.

JP 2011-214930 A JP 2011-102739 A JP 2011-164771 A

  In the charging stand guidance system for electric vehicles that is used after reserving the charging station, as described in Patent Document 3, by reducing the waiting time of the vehicle at the charging station by creating an accurate reservation schedule, The operating efficiency of the charging station can be improved.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a charging stand guide system for an electric vehicle that can reduce the waiting time of the vehicle at the charging stand and improve the operating efficiency of the charging stand. It is to provide.

  A charging station guidance system for charging a battery of an electric vehicle according to the present invention includes a charging station database that stores position information of the charging station, and an operating status that accumulates operating statuses from past to present for each charging stand. A control unit that performs information processing, and the control unit receives a determination of the selected charging station selected from the charging station and the estimated arrival time, and the past of the selected charging station of the operation status database The operation prediction information at the estimated arrival time is created from the operation status of the item.

  According to this invention, it is possible to select and use a more suitable charging station by providing operation prediction information when the charging station used by the electric vehicle is used. The operating efficiency of the charging station can be improved.

  In the above-described invention, the vehicle further includes a member vehicle database that stores battery data mounted for each vehicle, and the control unit includes position information on a current position together with an ID that specifies a guide vehicle that is a vehicle to be guided. Is selected as the selected charging station corresponding to the position information from the charging station database, the estimated arrival time is calculated from the distance between the guide vehicle and the selected charging station, and this determination is performed. In response, the operation prediction information may be created. According to this invention, it is possible to select and use an optimal charging station by providing operation prediction information when using the charging station used by the guide vehicle, and to reduce the waiting time of the vehicle at the charging station. This can reduce the operating efficiency of the charging station.

  In the above-described invention, the operation prediction information may include the operation status of the same day of the week and the same time as the expected arrival time within a predetermined period of the selected charging station stored in the operation status database. According to this invention, the accuracy of the operation prediction information can be improved and the operation efficiency of the charging station can be further improved.

  In the above-described invention, when the controller receives the reservation of the selected charging station from the guide vehicle, the control unit further receives battery information, and charges at the selected charging station of the guide vehicle from the battery data of the member vehicle database. An occupation time which is a time required when the charging is performed is calculated, and the charge reservation at the selected charging station is updated and stored in the operation status database based on the estimated arrival time and the occupation time. According to this invention, the operating efficiency of the charging station can be improved by the reservation based on the calculated occupation time.

  In the above-described invention, the operation prediction information may include the charge reservation of the same day of the week and the same time as the expected arrival time within a predetermined period of the selected charging station accumulated in the operation status database. According to this invention, the operation prediction information including the charge reservation can be presented to the guide vehicle, and the operation efficiency of the charging station can be further improved.

It is explanatory drawing about selection of the charging station of a vehicle. It is explanatory drawing about selection of the charging station which a vehicle reserves. 1 is a block diagram of a charging station guide system for an electric vehicle according to the present invention. It is a flowchart which shows the usage method of a charging stand guidance system. It is a flowchart which shows the usage method of a charging stand guidance system. It is a flowchart which shows the usage method of a charging stand guidance system.

  First, the situation when an electric vehicle selects and uses a plurality of charging stations in the vicinity will be described with reference to FIG.

  As shown in FIG. 1A, it is assumed that vehicles a, b, and c, which are electric vehicles, are going to use a charging stand. At this time, it is assumed that the user who is the driver or passenger of each vehicle knows the positions of the charging stations A and B as charging stations in the vicinity. Then, the users of the vehicles a and b select, for example, the charging station A as a closer charging station, and the user of the vehicle c selects the charging station B and heads for each charging station. However, the charging station A is crowded with a lot of vehicles waiting to be charged, and if the charging station A is used from now on, the waiting time becomes longer. After the users of the vehicles a and b arrive at the place where the charging station A is installed. You will notice. As a result, the users of the vehicles a and b waste time due to the long waiting time. Further, the charging station A continues to be filled with a large number of vehicles waiting to be charged, and the charging station B is vacant. That is, the operating efficiency of the charging stations A and B in the vicinity is poor.

  Therefore, operation prediction information such as the number of vehicles waiting for charging and the congestion status is presented to the users of the vehicles a to c as the prediction of the operation status of the charging station when it arrives at each charging station installation location. And In general, users tend to avoid charging stations where congestion is expected. That is, as shown in FIG. 1B, each user selects a charging station that is expected to be vacant in consideration of time efficiency or the like as his or her convenience based on the operation prediction information. For example, when congestion of the charging station A is predicted based on the operation prediction information, the users of the vehicles a and b select the charging station B. In addition, for example, when it is not particularly necessary to quickly charge the vehicle, it is possible to go home once based on the operation prediction information or to complete other tasks like the user of the vehicle c. That is, each user can suppress time waste. In addition, the probability of the user being guided to a charging station that is vacant or not congested by the operation prediction information increases. As a result, the waiting time of the vehicle at the charging station can be reduced, and the operating efficiency of the neighboring charging station can be improved. In addition, if the current operating status is presented to each user instead of the operating forecast information, the operating status changes at each user's arrival time at the charging station, and the operating efficiency of neighboring charging stations is Can be reduced.

  In addition, as shown in FIG. 2A, when the operation prediction information is not presented in the case of making a reservation for a charging station, the user selects a charging station with a reservation available at a time when arrival is expected. Here, as shown in the figure, it is assumed that both charging stations A and B have a vacancy at a time when arrival is expected. When making a reservation, it is almost always possible to confirm the availability of the reservation, and the current reservation status is presented to the user. Then, the user determines that the charging station B that is currently vacant is less likely to be crowded upon arrival, and is more likely to be charged at the reserved time. That is, the charging station B is selected and a reservation (R) is made. However, if the charging station B is congested on arrival and the charging station A is vacant, the user's reservation will facilitate the congestion of the charging station B and reduce the operating efficiency of the nearby charging stations A and B. . On the other hand, as shown in FIG. 2 (b), when the operation prediction information is presented to the user, the charging station A, which is less likely to be crowded at the time of arrival, is at the time as reserved. Judge that there is a high possibility of charging. That is, the charging station A is selected and reservation (R) is made. Here, similarly to the above, when the charging station B is congested on arrival and the charging station A is vacant, the user performs charging at the vacant charging station A. Therefore, the operating efficiency of the neighboring charging stations A and B is increased. Can be improved.

  As described above, if the expected operation information of the nearby charging station that can be used can be presented to the user of each vehicle, the operating efficiency of the neighboring charging station can be improved. The inventor of the present application has focused on this point and has conceived a charging stand guide system for an electric vehicle for presenting operation prediction information to a user of the electric vehicle.

  Next, a charging stand guidance system as one embodiment according to the present invention will be described with reference to FIG.

  As shown in FIG. 3, the charging station guidance system 1 includes a server 10 that can be connected to a communication network 50 such as the Internet, and a plurality of charging stations 21 </ b> A to 21 </ b> E connected to the communication network 50. An access point 51 capable of wireless communication is connected to the communication network 50 by the communication device 31 of the vehicle 30 traveling on the road.

  The server 10 includes a control unit 11, a storage unit 15, a communication unit 19 that mediates transmission / reception of information, and an input / output unit (not shown). The control unit 11 includes a CPU (not shown) that executes a predetermined program, and a memory (not shown) that includes a ROM that stores the program and a RAM that temporarily stores information necessary for executing the program. By executing such a program, the control unit 11 performs respective calculations as an expected arrival time calculation unit 12a, a travelable distance calculation unit 12b, a charge waiting time calculation unit 12c, an operation prediction information creation unit 12d, and an occupation time calculation unit 12e. Etc. can be executed. The storage unit 15 stores the charging station database 16 that stores information such as the position information of the charging stations 21A to 21E and the names for identifying the charging stations 21A to 21E, and information about the operating status and the reservation status of the charging stations 21A to 21E from the past to the present. And a member vehicle database 18 that stores member data relating to members who can use the charging station guidance system 1 and vehicle data relating to the specifications of the vehicles used. The member data includes the member ID number, and the vehicle data includes battery data such as the full capacity of the loaded battery, travelable distance data for the remaining battery capacity, and the like. Here, it is preferable that the correspondence between the member ID and the vehicle used by the member is taken. Moreover, vehicle ID which can specify a vehicle instead of member ID can also be used. The server 10 may be composed of a plurality of servers, and each database may be stored in a storage device of another server to which the server 10 can be connected.

  The charging station will be installed on the site of the charging station. In the present embodiment, the charging stations 21A and 21B are installed in the site of the charging station 20a, and the charging stations 21C to 21E are installed in the site of the charging station 20b. The charging stations 21A to 21E include a storage device and a communication device (not shown), store the charging work records and reservation records of the charging stations 21A to 21E as information indicating the respective operation statuses, and via the communication network 50. These records can be transmitted to the server 10.

  The vehicle 30 is an electric vehicle used by a user who uses the charging station guidance system 1, and is loaded with a communication device 31 capable of wirelessly communicating with at least the access point 51. The communication device 31 has a GPS function for specifying the position of the vehicle 30, and can thereby acquire position information indicating the current location of the vehicle 30. Further, the communication device 31 has an input unit and a display unit (not shown), and has a function of acquiring battery information at that time including the remaining capacity of the battery loaded on the vehicle 30 from an in-vehicle device (not shown). preferable. The communication device 31 can transmit the acquired vehicle position information and battery information as vehicle information at that time. As the communication device 31, for example, a car navigation device, an in-vehicle device for telematics service, a portable terminal such as a mobile phone or a tablet PC, and the like can be used.

  Then, the usage method of the charging stand guidance system 1 is demonstrated using FIG. 4 thru | or FIG.

  As shown in FIG. 4, in order to charge the vehicle 30 on which the user 3 rides, the user 3 first operates the communication device 31 in order to start searching for nearby charging stations by the charging station guidance system 1 ( S1). The communication device 31 displays a search start screen according to the operation (S2). Subsequently, the user 3 inputs a user ID and a password to the communication device 31 (S3). The communication device 31 transmits the input user ID and password to the server 10 (S4). Upon receiving this, the server 10 searches for and acquires member information corresponding to the same user ID from the member vehicle database 18. Then, the input password is compared with the password of the member information (S5). If the passwords do not match as a result of the collation (S6, N), a notification that the charging station guidance system 1 cannot be used is returned and displayed on the communication device 31 (S7). If the passwords match (S6, Y), a notification that the charging station guidance system 1 can be used is returned, which is displayed on the communication device 31 (S8) and notified to the user 3.

  When receiving the notification of availability, the communication device 31 displays a vehicle information request screen to confirm to the user 3 whether the vehicle position information and battery information described above may be transmitted as vehicle information ( S9). When the user 3 performs an operation for permitting transmission of the vehicle information in response to this (S10), the communication device 31 transmits the vehicle information to the server 10 (S11).

  Referring also to FIG. 3, the server 10 that has received the vehicle information selects a predetermined number of nearby charging stations from the charging station database 16 as the selected charging station based on the position information of the vehicle 30. Here, in the case where there is a charging station having a plurality of charging stations, it is preferable to select the charging station as a target for selection.

  The server 10 calculates the mutual distance from the position information of the vehicle 30 and the position information of the selected charging station, and also calculates the estimated arrival time of the vehicle 30 to the selected charging station, using the estimated arrival time calculation unit 12a (S12). ). In addition, the server 10 acquires travelable distance data for the remaining battery capacity as vehicle data from the member vehicle database 18 by the travelable distance calculation unit 12b, and the current remaining battery power in the vehicle information received from the communication device 31. A travelable distance is calculated based on the capacity (S13). At this time, the server 10 determines whether or not the selected charging station is within the travelable distance, and if not, can select another charging station as the selected charging station or reduce the number of selected charging stations. . Further, the server 10 acquires reservation information, which is information related to the charge reservation, from the operation status database 17 by the charge waiting time calculation unit 12c, and calculates the charging wait time based on the estimated arrival time calculated above (S14). The server 10 further creates operation forecast information based on the past operation status obtained from the operation status database 17 by the operation forecast information creation unit 12d (S15). As past operating conditions, for example, the same time as the estimated arrival time, a record of past charging work on the same day of the week, a record related to reservation, the number of vehicles waiting to be charged at the charging station where the selective charging stand is installed, etc. Or can be appropriately processed. In addition, information about charging reservation and charging standby, which will be described later, obtained from the operation status database 17 may be added to the operation prediction information. Thereby, the reliability as operation | movement forecast information can be improved. The operation prediction information may further include the distance obtained above, estimated arrival time, travelable distance, reservation information, and charging waiting time.

  The created operation prediction information is returned to the communication device 31 together with information such as the name and location regarding the corresponding selected charging station and displayed on the display unit (S16). Based on the operation prediction information, the user 3 selects one charging station to be used for charging from among the selected charging stations, and performs an input for designating it on the communication device 31 (S17). The communication device 31 causes the user 3 to display the selected charging station (S18), and performs charging reservation processing, which will be described later, as necessary. Here, it is preferable that the communication device 31 can display a route to the charging station selected by the user 3.

  Note that, in selecting the selected charging stand, a method of selecting from the position information of the vehicle 30 in order of increasing distance is considered. In addition, a method for obtaining destination information from the vehicle 30 via the communication device 31 or other communication device, determining the route, and selecting along the route or based on the distance from the route, and the user A method of selecting information by adding information such as preferences is also considered. The “distance” referred to in this specification may be a linear distance between two points, but is preferably a road along a road. Further, by transmitting the results calculated by the respective calculation units from the communication device 31 to the server 10, the operation prediction information creation unit 12d can create the operation prediction information without going through the calculation unit. For example, the operation prediction information can be created by transmitting the estimated arrival time from the communication device 31 without going through the estimated arrival time calculation unit 12a.

  As described above, by using the charging station guidance system 1, the user 3 can refer to the operation prediction information about the nearby selected charging station, and selects the charging station to be charged based on this information. be able to. In addition, based on the operation prediction information, for example, it is possible to select an action other than charging, such as charging after returning to other business first and then returning home, according to the convenience of the user. In general, since there are few users who prefer to use a charging station that is expected to be crowded and perform charging, the probability that the user is guided to a charging station that is vacant or not crowded increases. As a result, the waiting time of the vehicle at the charging station can be reduced, and the operating efficiency of neighboring charging stations can be improved.

  Subsequently, as shown in FIG. 5, when the charge reservation is performed, the display is performed following the display (S18) on the communication device 31 of the charging station selected by the user 3 described above.

  That is, when making a reservation for charging at the selected charging station, the user 3 determines the charging station displayed on the communication device 31 as the reserved charging station (S21), and inputs the fact to the communication device 31 ( S22). The communication device 31 transmits information specifying the reserved charging station and battery information including the current remaining battery capacity of the vehicle 30 of the user 3 to the server 10 (S23). If the battery information is transmitted in the vehicle information transmission (S11) described above, it is not necessary to transmit it here. Receiving this, the server 10 obtains battery data including at least the full capacity of the battery obtained from the member vehicle database 18 by the occupation time calculation unit 12e (see FIG. 3), and receives the remaining capacity of the battery received from the communication device 31. Is used to calculate the time required for charging as the occupation time (S24). At this time, it is more accurate to calculate the occupation time after estimating the remaining capacity of the battery when it arrives at the charging station based on the distance between the vehicle 30 and the charging station and vehicle data. Further, the server 10 updates the obtained occupation time, estimated arrival time, and user ID of the user 3 in addition to the charge reservation, and accumulates them in the operation status database 17 (S25). The server 10 creates a reservation completion notification for notifying the completion of the charge reservation and returns it to the communication device 31 (S26). The communication device 31 displays the reservation completion notification 27 and notifies the user 3 that the charge reservation has been completed (S27). In the case of a charging station having a plurality of charging stations, it is possible to reserve each charging station or to reserve any one charging station in the charging station without specifying the charging station.

  Further, a case will be described in which the user 3 goes to the charging stand without making a reservation and waits for the order of charging, that is, performs charging while waiting for charging. In the following description, the user 3 operates the charger at the charging station directly or by using a console in the site of the charging station. However, the user 3 can operate the charger from the vehicle 30 via the communication device 31. You may do it.

  As shown in FIG. 6, the user 3 enters the charging station (S31), and inputs the user ID to the charging stand 21 (S32). Authentication may be performed by inputting a password. Here, instead of the user ID and password, a user or a vehicle may be specified using a magnetic card, an IC card, a fingerprint, or the like. The charging stand 21 accepts charging standby by the user ID, and transmits the user ID to the server 10 (S33). The server 10 creates charging standby information based on the user ID and accumulates it in the operation status database 17 (S34). The charging standby information may include the reservation information described above.

  Next, the server 10 obtains battery data including at least the full capacity of the battery obtained from the member vehicle database 18 by the occupation time calculation unit 12e (see FIG. 3), and separately includes the battery including the remaining capacity of the battery from the communication device 31. The time required for charging by receiving the information is calculated as the occupation time (S35). If the battery information cannot be received, the past average charging time of the user 3 may be obtained from the member vehicle database 18 and substituted, and the average charging time of other users, the average of the same type of vehicle A typical charging time may be used instead. When the server 10 refers to the charging standby information in the operation status database 17 and determines whether the vehicle 30 of the user 3 is the first vehicle (first vehicle) that is waiting to be charged, the server 10 is the first vehicle (S36, Y), the occupancy time is displayed on the charging stand 21 (S37), and a message indicating that charging can be started (S51) is displayed. If it is the second or later unit (S36, N), the standby reference time and the occupation time are displayed (S39). Here, the estimated standby time is the total of the occupation times of other vehicles that have been charged in the previous charge standby or reserved for charging by the user 3, but is the total of the substitute times for the above occupation times. May be. In addition, the number of vehicles waiting for the turn (charging standby and charging reservation) may be displayed.

  Looking at the displayed standby waiting time, the user 3 inputs whether to wait for charging or not (S40). When the input result is a result indicating that the charging standby is not performed (S41, N), the charging stand 21 sends information indicating that charging standby is denied to the server 10. The server 10 receives this and deletes (clears) the charging standby information for the user 3 from the charging standby information in the operation status database 17 (S42). When the input result is a result of charging standby (S41, Y), the charging stand 21 sends information indicating that charging standby is affirmed to the server 10. Note that the server 10 may determine whether the input is affirmative or negative (S41). The server 10 that has received the information indicating that the charging standby is affirmed calculates a scheduled charging start time by a charging start scheduled time calculation unit (not shown) (S43). The scheduled charging start time is the time when the above-described standby reference time has elapsed from the current time. The scheduled charging start time is transmitted to the charging stand 21 and displayed (S44). At this time, the user 3 can leave the charging stand 21 together with the vehicle 30 if there is room before the scheduled charging start time.

  When the scheduled charging start time approaches, the server 10 notifies the charging start (S45). The notification of the start of charging can be notified, for example, by the user 3 only a predetermined time before the scheduled charging completion time of the vehicle one vehicle before. The estimated charging completion time can be obtained by measuring the remaining capacity of the battery of the previous vehicle at the charging stand 21 during charging and calculating the occupied time required for charging completion by the server 10. Further, the notification of the start of charging may be performed by sending an e-mail to another mobile terminal designated by the user 3 in addition to the notification to the communication device 31. In addition, when a standby place is provided in the charging station, it can be notified by an image or sound so that it can be seen by the user 3 from the standby place or can be heard by the user 3 at the standby place. The notification of the start of charging can be performed at other arbitrary timings or divided into a plurality of times.

  Receiving the notification of charging start, the user 3 moves the vehicle 30 to the charging position (S46), and inputs the user ID to the charging stand 21 (S47). The charging stand 21 transfers the input user ID to the server 10 (S48), and confirms whether the user stands by in a predetermined order by collating with the charging standby information at the server 10. If the input ID does not match the ID of the charging standby information (S49, N), the standby reference time and the occupation time from the current time are displayed again on the charging stand 21 to prompt the user 3 to wait further. If the IDs match (S49, Y), the charging station 21 displays that charging can be started (S51). Here, as described above, when the vehicle 30 of the user 3 is the first vehicle waiting to be charged (S36, Y), such display is performed, and the following processing is common. If the ID corresponding to the vehicle 30 is not input even after a predetermined time has passed since the turn of the vehicle 30, the charging standby information for the vehicle 30 may be erased (cleared).

  The user 3 connects the connector of the charging station 21 to the socket of the vehicle 30 as necessary, and inputs an instruction to start charging to the charging station 21 (S52). In response to this, the charging station 21 charges the battery mounted on the vehicle 30 until it reaches a full capacity (S53). At this time, the remaining capacity of the battery is measured again by the charging station 21, and the server 10 is made to calculate the occupied time again based on the full capacity of the battery in the battery data, and this is displayed on the charging station 21 again. Good. When the charging is completed, the charging stand 21 displays a charging completion screen (S54), and transmits information indicating that the charging is completed to the server 10. In response to this, the server 10 deletes (clears) the charging standby information for the user 3 among the charging standby information in the operation status database 17 (S55). The user 3 confirms the completion of charging on the display of the charging station 21, removes the connector from the vehicle 30 as necessary, leaves the charging station 21, and exits the charging station (S56).

  As described above, according to the charging station guidance system 1 for an electric vehicle, the user 3 can select a charging station that performs charging according to his / her convenience based on the operation prediction information, or can select another action. . Thereby, the waiting time of the vehicle in a charging station can be reduced, and the operating efficiency of a nearby charging station can be improved.

  In addition, it is possible to reserve and wait for charging, and the user can widen the range of selecting an action that is convenient for the user. In addition, the reliability of the operation prediction information can be further improved by including information on the charge reservation and the charging standby in the operation prediction information. As a result, the operating efficiency of the nearby charging station can be further improved.

  The present invention has been described with reference to the exemplary embodiments and the modifications based thereon. However, the present invention is not necessarily limited to these embodiments and modifications, and those skilled in the art will recognize the scope of the appended claims. Various alternative embodiments could be found without departing from.

DESCRIPTION OF SYMBOLS 1 Charging stand guidance system 10 Server 11 Control part 15 Memory | storage part 20a, 20b Charging station 21 (21A-21E) Charging stand 30 Vehicle 31 Communication apparatus 50 Communication network

Claims (3)

A charging stand guidance system for charging a battery of an electric vehicle,
A charging station database storing position information of the charging station;
An operational status database that accumulates operational status from past to present for each charging station;
Member vehicle database storing battery data mounted for each vehicle of the electric vehicle,
A control unit that performs information processing,
The controller is
In response to the determination of the selected charging station selected from the charging station and the estimated arrival time, in creating the operation prediction information at the estimated arrival time from the past operation status of the selected charging station of the operation status database , When the position information of the current position is received together with the ID for identifying the guide vehicle that is the target vehicle, the charging station is selected as the selected charging station corresponding to the position information from the charging station database, and the guide vehicle The estimated arrival time is calculated from the distance between the selected charging station and the selected charging station. Upon receiving this determination, the estimated arrival time within the predetermined period of the selected charging station stored in the operation status database is the same day of the week and the same time. guidance system, characterized in that to create the operation prediction information including the operation status The controller is
When receiving a reservation for the selected charging station from the guide vehicle,
Further receiving battery information, calculating from the battery data of the member vehicle database an occupation time that is the time required when charging at the selected charging station of the guide vehicle,
Guidance system of claim 1, wherein the charging reservation in the selected charging station accumulates while updating the operational status database based on the estimated arrival time and the occupation time. The guidance system according to claim 2 , wherein the operation prediction information includes the charge reservation of the same day of the week and the same time as the estimated arrival time within a predetermined period of the selected charging station stored in the operation status database. .

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