Power transmission control device

Abstract

The invention provides a power transmission control device. The charging control device includes a storage device that records a plurality of digital certificates related to charging. Furthermore, the charging control device is provided with a processor that selects, from among the plurality of digital certificates, a digital certificate suitable for the charging station, on the basis of predetermined information (identification information or history information) relating to the charging station that performs charging between the charging station and the electric vehicle. The communication device transmits the selected digital certificate to the charging station.

Description

Technical Field

[0001] The present disclosure relates to a power transmission control device. Background Art

[0002] Japanese Patent Application Laid-Open No. 2022-061185 discloses a car equipped with an on-board processing unit, which obtains charging side information including identification information corresponding to a charging device and address information of a server device that performs charging authentication. When the car obtains the charging side information, a connection is established between the car-side authentication unit (user terminal) and the server device to start authentication processing. Summary of the invention

[0003] Problems to be solved by the invention

[0004] Here, although it is not clearly stated in the above-mentioned Japanese Patent Application Laid-Open No. 2022-061185, sometimes the charging process between the vehicle and the charging device is performed by sending appropriate protocol certificate information from a plurality of protocol certificate information stored in the vehicle to the charging device. That is, when inappropriate protocol certificate information is sent from the vehicle (electric vehicle) to the charging device (power station), the charging process (power transmission) cannot be performed.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a power transmission control device capable of suppressing the occurrence of a situation where power transmission between an electric vehicle having a plurality of protocol certificate information and a power station becomes unexecutable.

[0006] Technical solutions to solve problems

[0007] A power transmission control device according to one aspect of the present disclosure controls power transmission, wherein the power transmission includes at least one of charging and discharging of a secondary battery of an electric vehicle, and the power transmission control device includes:

[0008] A recording unit, recording a plurality of protocol certificate information related to power transmission;

[0009] an acquisition unit that acquires predetermined information related to the power station and performs power transmission between the power station and the electric vehicle;

[0010] a selection unit that selects protocol certificate information suitable for the power station from among the plurality of protocol certificate information based on the acquired predetermined information; and

[0011] The sending unit sends the selected protocol certificate information to the power station.

[0012] In the power transmission control device involved in one aspect of the present disclosure, as described above, the protocol certificate information suitable for the power station is selected from the plurality of protocol certificate information, and the selected protocol certificate information is sent to the power station. Thus, it is possible to prevent the protocol certificate information unsuitable for the power station from being sent to the power station. As a result, it is possible to suppress the occurrence of a situation where power transmission between an electric vehicle having a plurality of protocol certificate information and a power station becomes unexecutable.

[0013] In the power transmission control device according to the above aspect, preferably, when a power station is set as the destination, the acquisition unit acquires identification information of the power station set as the destination as the predetermined information.

[0014] The selection unit selects the protocol certificate information suitable for the power station set as the destination based on the identification information.

[0015] According to this configuration, it is possible to suppress the occurrence of a situation where electric power transmission cannot be performed at the electric power station set as the destination.

[0016] In the power transmission control device according to the above aspect, preferably, when the distance between the electric vehicle and the power station becomes within a predetermined distance, the acquisition unit acquires identification information of the power station located within the predetermined distance as the predetermined information.

[0017] The selection unit selects protocol certificate information suitable for a power station located within a predetermined distance based on the identification information.

[0018] According to this configuration, it is possible to suppress the occurrence of a situation where power transmission cannot be performed at a power station located within a predetermined distance.

[0019] In the power transmission control device according to the above aspect, preferably, when the distance between the electric vehicle and the power station becomes within a predetermined distance, the acquisition unit acquires past power transmission history information of the power station located within the predetermined distance as the predetermined information.

[0020] The selection unit selects protocol certificate information suitable for a power station located within a predetermined distance based on the history information.

[0021] According to this configuration, even if there is no identification information of a power station, by using the above-mentioned history information, it is possible to suppress a situation where power transmission cannot be performed at a power station located within a predetermined distance.

[0022] Based on the power transmission control device involved in one aspect above, it is preferred that, when the power station is not set as the destination, when the distance between the electric vehicle and the power station is within a predetermined distance and the identification information of the power station located within the predetermined distance can be obtained by the acquisition unit, the selection unit selects the protocol certificate information suitable for the power station located within the predetermined distance based on the identification information.

[0023] In addition, when the power station is not set as the destination, when the distance between the electric vehicle and the power station is within a predetermined distance and the identification information cannot be obtained by the acquisition unit, the selection unit uses the history information of past power transmissions of the power station located within the predetermined distance to select the protocol certificate information suitable for the power station located within the predetermined distance.

[0024] According to this configuration, even when a power station is not set as a destination, by using identification information or history information, it is possible to suppress a situation where power transmission cannot be performed at a power station located within a predetermined distance.

[0025] In the power transmission control device that selects the protocol certificate information based on the identification information, it is preferable that the identification information includes information of a power company cooperating with the power station.

[0026] According to this configuration, it is possible to transmit the agreement certificate information suitable for the electric power company cooperating with the electric power station to the electric power station.

[0027] According to the present disclosure, it is possible to suppress the occurrence of a situation in which power transmission between an electric vehicle having a plurality of protocol certificate information and a power station becomes unexecutable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals represent like parts, and in which:

[0029] Figure 1 The diagram shows an electric vehicle equipped with a charging control device according to an embodiment, a charging station, and a server.

[0030] Figure 2 This is a diagram showing an example of the content of a digital certificate.

[0031] Figure 3 It is a diagram showing charging stations and power companies.

[0032] Figure 4 1 is a flowchart showing control of a charging system according to an embodiment.

[0033] Figure 5 This is a first diagram showing a screen of an HMI device according to an embodiment.

[0034] Figure 6 This is a second diagram showing a screen of the HMI device according to one embodiment.

[0035] Figure 7 It is shown Figure 4 The detailed process of S30 is shown in the flowchart. DETAILED DESCRIPTION

[0036] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, the same reference numerals are given to the same or corresponding parts in the drawings, and their description will not be repeated.

[0037] Figure 1 1 is a diagram schematically showing the overall configuration of a charging system 1 according to the present embodiment. The charging system 1 includes an electric vehicle 200, a charging station 300, and a server 400. The charging station 300 is an example of a "power station" in the present disclosure.

[0038] The electric car 200 is configured to perform PnC charging (charging in which user authentication is performed when a charging connector is connected to the car) with the charging station 300 .

[0039] The server 400 manages external charging (PnC charging) between the electric car 200 and the charging station 300. The server 400 communicates with each of the electric car 200 and the charging station 300. In addition, external charging (PnC charging) is an example of "power transmission" in the present disclosure.

[0040] The electric vehicle 200 is provided with a storage battery 210 for storing electric power for traveling. The electric vehicle 200 is configured to be able to travel using the electric power stored in the storage battery 210. In the present embodiment, the electric vehicle 200 is a battery electric vehicle (BEV) without an engine (internal combustion engine). In addition, the electric vehicle 200 may be a hybrid electric vehicle (HEV) or a plug-in hybrid electric vehicle (PHEV) provided with an engine. In addition, the storage battery 210 is an example of a "secondary battery" disclosed in the present invention.

[0041] The electric vehicle 200 further includes a travel drive unit 110 , a human machine interface (HMI) device 120 , a monitoring module 130 , a communication device 140 , a control device (ECU) 150 , an inlet 160 , a GPS module 170 , and drive wheels W.

[0042] The electric vehicle 200 is equipped with a charging control device 100 for controlling charging of the storage battery 210. The charging control device 100 includes a monitoring module 130, a communication device 140, and an ECU 150. The charging control device 100 is an example of a "power transmission control device" of the present disclosure.

[0043] The travel drive unit 110 includes a power control unit (PCU) and a motor generator (MG) (not shown), and is configured to cause the electric vehicle 200 to travel using the power stored in the battery 210 .

[0044] The HMI device 120 includes an input device and a display device. The HMI device 120 may also include a touch panel display.

[0045] The monitoring module 130 includes various sensors for detecting the state of the battery 210 (e.g., voltage, current, and temperature), and outputs the detection results to the ECU 150. The monitoring module 130 may also be a battery management system (BMS) having, in addition to the above-mentioned sensor functions, a state of charge (SOC) estimation function, a state of health (SOH) estimation function, a cell voltage balancing function, a diagnosis function, and a communication function.

[0046] The communication device 140 communicates with the charging station 300 and the server 400. The communication device 140 may include a data communication module (DCM) or a communication I / F supporting the fifth generation mobile communication system (5G). The communication device 140 is an example of the "acquisition unit" and the "transmission unit" of the present disclosure.

[0047] ECU150 is configured to perform charging control and discharging control of battery 210. ECU150 includes a processor 151, a random access memory (RAM) 152, and a storage device 153. In addition, processor 151 is an example of a "selection unit" and an "acquisition unit" of the present disclosure. In addition, storage device 153 is an example of a "recording unit" of the present disclosure.

[0048] The ECU 150 may be a computer. The processor 151 may be a central processing unit (CPU). The RAM 152 functions as a working memory for temporarily storing data processed by the processor 151 .

[0049] The storage device 153 is configured to store stored information. In addition to the program, the storage device 153 also stores information used in the program (for example, maps, mathematical expressions, and various parameters). The processor 151 executes the program stored in the storage device 153 to perform various controls in the ECU 150 .

[0050] A digital certificate 154 is stored in the storage device 153. The digital certificate 154 includes a digital certificate 154a and a digital certificate 154b. The ECU 150 (processor 151) is capable of executing a process of writing the digital certificate 154 into the storage device 153. Here, the digital certificate 154 includes, for example, an original equipment manufacturer (OEM) certificate and a charging agreement certificate. In addition, the charging agreement certificate proves the content of the agreement signed between the mobile operator (MO) or power company providing the charging service and the user of the electric vehicle 200. In addition, the digital certificates (154, 154a, 154b) are an example of the "agreement certificate information" of the present disclosure.

[0051] exist Figure 2 In the example shown, the digital certificate 154 contains information about the charging cost determined by the time and the amount of charging. Figure 2 An example of information included in digital certificate 154a is shown in FIG. 1 . Digital certificate 154a includes information indicating that the upper limit of the charging power from 0:00 a.m. to 1:00 a.m. is 15 kW and the charging fee is 0.25 euros / kWh. In addition, digital certificate 154a includes information indicating that during the period from 1:00 a.m. to 2:00 a.m., the charging fee is 0.30 euros / kWh for charging power up to 10 kW, 0.20 euros / kWh for charging power from 10 kW to 20 kWh, and 0.10 euros / kWh for charging power from 20 kW to 30 kWh. In addition, the information included in digital certificate 154a is not limited to Figure 2 Example shown.

[0052] In addition, the digital certificate 154 contains Figure 2 The above information includes, for example, the vehicle information (VIN) of the electric vehicle 200, the personal information of the user of the electric vehicle 200, and the card information used to pay the charging fee. In addition, the validity period is set in the digital certificate 154. The ECU 150 controls the charging authenticated by the digital certificate 154. When the validity period of the digital certificate 154 expires, the digital certificate 154 needs to be updated.

[0053] In addition, the digital certificate 154 includes information about the power company that is the issuer. Specifically, the digital certificate 154a includes information indicating that the power company 310A (see Figure 3 ) issued by the power company 310B (see Figure 3 In this embodiment, it is assumed that charging station 300A and charging station 300B (see Figure 3) cooperate with power company 310A and power company 310B respectively. In addition, charging station 300A and charging station 300B are examples of "power stations" in the present disclosure.

[0054] The processor 151 is capable of performing a process of switching the digital certificate 154 used in external charging. Specifically, the processor 151 reads the digital certificate 154 to be used from the storage device 153 when the electric vehicle 200 performs external charging. For example, when the digital certificate 154a is read as the digital certificate 154 to be used, the electric vehicle 200 sends the digital certificate 154a to the charging station 300 through the communication device 140. In the case where the digital certificate 154 sent to the charging station 300 is suitable for the charging station 300, external charging is performed between the electric vehicle 200 and the charging station 300. The digital certificate 154a issued by the power company 310A cooperating with the charging station 300A is suitable for the charging station 300A. The digital certificate 154b issued by the power company 310B cooperating with the charging station 300B is suitable for the charging station 300B.

[0055] The socket 160 is configured to allow a charging connector 301 of the charging station 300 to be inserted. The charging connector 301 is provided at the front end of a charging cable 302 installed in the charging station 300. By inserting the charging connector 301 into the socket 160, the electric vehicle 200 is electrically connected to the charging station 300. Thus, electric power can be transferred between the charging station 300 and the electric vehicle 200.

[0056] The GPS module 170 acquires information (GPS information) indicating the current position of the electric vehicle 200 based on signals from a plurality of artificial satellites, and outputs the GPS information to the processor 151. In addition, the electric vehicle 200 may include a beacon receiver (not shown) instead of the GPS module 170 or in addition thereto.

[0057] Here, in the conventional system, an inappropriate digital certificate 154 may be sent from the car to the power station. In this case, the charging process cannot be performed.

[0058] In this embodiment, the communication device 140 of the electric vehicle 200 obtains identification information related to the charging station 300 through communication. The above identification information includes information of the power company cooperating with the charging station 300. In addition, the processor 151 obtains the history information of the past external charging (PnC charging) of the charging station 300. The above history information is stored in the storage device 153. In addition, the information (identification information) of the power company and the history information are each an example of the "predetermined information" of the present disclosure.

[0059] The processor 151 selects a digital certificate 154 suitable for the charging station 300 (performing external charging) from among the plurality of digital certificates 154 recorded in the storage device 153, based on the information of the power company obtained by the communication device 140 (hereinafter, sometimes simply described as identification information) or the above-mentioned history information obtained from the storage device 153. Then, the communication device 140 transmits the digital certificate 154 selected by the processor 151 to the charging station 300 performing external charging.

[0060] Thus, the digital certificate 154 suitable for the charging station 300 can be easily transmitted to the charging station 300. Thus, external charging can be easily performed. Figure 4 The flowchart shown explains the specific control.

[0061] <Charging system process control>

[0062] Figure 4 1 is a flowchart showing a control flow of the charging system 1 including the electric vehicle 200 , the charging station 300 , and the server 400 .

[0063] In S1, the ECU 150 (processor 151) of the electric car 200 determines whether the charging station 300 is set as the destination. If the charging station 300 is set as the destination (Yes in S1), the process proceeds to S4. If the charging station 300 is not set as the destination (No in S1), the process proceeds to S2.

[0064] When the HMI device 120 performs a process of searching for the charging station 300, the screen 121 (see Figure 5 ) shows a list of charging stations 300 around the electric vehicle 200. When one of the charging stations 300 displayed on the screen 121 is selected, the selected charging station 300 may be set as a destination.

[0065] In S2, the processor 151 determines whether the charging station 300 is within a predetermined distance (e.g., within 100 m) of the electric vehicle 200. The location information of the charging station 300 may be stored in the storage device 153 or obtained from the server 400 via the communication device 140. When the charging station 300 is within the predetermined distance (yes in S2), the process proceeds to S3. When the charging station 300 is not within the predetermined distance (no in S2), the process returns to S1. In addition, the presence of the charging station 300 within the predetermined distance also includes the state in which the electric vehicle 200 has arrived at the charging station 300.

[0066] In S3, the processor 151 determines whether it is possible to obtain information (identification information) of the power company cooperating with the charging station 300 determined in S2 to be within the predetermined distance. For example, when the electric vehicle 200 cannot communicate with the charging station 300, or when the identification information of the charging station 300 is not stored in the server 400, the identification information cannot be obtained. When the identification information of the charging station 300 can be obtained (Yes in S3), the process proceeds to S4. When the identification information of the charging station 300 cannot be obtained (No in S3), the process proceeds to S6.

[0067] In S4, processor 151 requests server 400 for identification information of charging station 300 set as the destination in S1 or charging station 300 determined to be within the predetermined distance in S2. Processor 151 may make the above request to charging station 300.

[0068] For example, in Figure 5 When the charging station 300A is selected in the screen 121 shown, it is determined that the charging station 300A is set as the destination, and a signal requesting identification information of the charging station 300A is sent from the electric vehicle 200 to the server 400. In addition, when the charging station 300A enters within a predetermined distance of the electric vehicle 200, a signal requesting identification information of the charging station 300A is sent from the electric vehicle 200 to the server 400.

[0069] In S10, the server 400 transmits the identification information of the requested charging station 300 to the electric vehicle 200 according to the request signal transmitted from the electric vehicle 200 in S4. As a result, the screen 122 (see FIG. 1 ) including the identification information of the charging station 300 is displayed on the HMI device 120 of the electric vehicle 200. Figure 6 ).exist Figure 6 In the illustrated example, it is displayed that the company cooperating with charging station 300A is AAA Electric Power Company, that charging station 300A supports PnC charging, and a map showing the location of charging station 300A.

[0070] The processor 151 of the electric vehicle 200 that has received the identification information transmitted from the server 400 in S10 reads out the digital certificate 154 suitable for external charging in S5. Specifically, the processor 151 reads out the power company (in the case of the electric vehicle 200) that cooperates with the charging station 300 based on the identification information transmitted from the server 400 in S10. Figure 6 In addition, the digital certificate 154 issued by the affiliated company of the power company cooperating with the charging station 300 may be read. After S5, the process proceeds to S8.

[0071] On the other hand, in S6, the processor 151 determines whether there is a history of PnC charging performed in the past with the charging station 300 determined to be within the predetermined distance in S2. Specifically, the processor 151 reads the execution history of PnC charging stored in the storage device 153 and performs the above determination. If there is a history (Yes in S6), the process proceeds to S7. If there is no history (No in S6), the process ends.

[0072] In S7, processor 151 selects the read digital certificate 154 based on the history in S6. Specifically, processor 151 reads the digital certificate 154 used for PnC charging corresponding to the history. Then, the process proceeds to S8.

[0073] In S8, processor 151 transmits digital certificate 154 read out in S5 or S7 to charging station 300 via communication device 140. Then, the process proceeds to S30. In addition, in S5, when no suitable digital certificate 154 is recorded in storage device 153, for example, the digital certificate 154 with the highest priority among the digital certificates 154 recorded in storage device 153 may be transmitted to charging station 300.

[0074] In S20, the charging station 300 determines whether the digital certificate 154 sent from the electric vehicle 200 in S8 is a digital certificate 154 suitable for itself. Specifically, the charging station 300 determines whether it has received a digital certificate 154 issued by a power company cooperating with itself. When a digital certificate 154 suitable for the charging station 300 is received (Yes in S20), the process proceeds to S21. When a digital certificate 154 suitable for the charging station 300 is not received (No in S20), the process ends.

[0075] In S21, the charging station 300 notifies the electric car 200 and the server 400 that the digital certificate 154 is valid in S20. Alternatively, the electric car 200 may notify the server 400. Then, the process proceeds to S30.

[0076] In S11, server 400 determines whether the validity period of digital certificate 154 determined in S20 to be suitable for charging station 300 has expired. If the validity period has expired (Yes in S11), the process ends. If the validity period has not expired (No in S11), the process proceeds to S30.

[0077] In S30 , the electric vehicle 200 , the charging station 300 , and the server 400 execute PnC charging control.

[0078] Figure 7 Yes means Figure 4 FIG. 4 is a diagram of the specific process of S30. Figure 7S31~S33 are in Figure 4 The processing is executed when a plurality of suitable digital certificates 154 are read out in S5.

[0079] In S31, the processor 151 of the electric car 200 determines whether the digital certificate 154 used in PnC charging is set. Figure 4 Whether there is a digital certificate 154 pre-set by the user as a certificate to be used in PnC charging among the plurality of digital certificates 154 read out in S5. If the answer is yes in S31, the process proceeds to S32. If the answer is no in S31, the process proceeds to S33.

[0080] In S32, the processor 151 sets the digital certificate 154 set for use in PnC charging as the digital certificate 154 for PnC charging. Then, the process proceeds to S34.

[0081] In S33, the processor 151 sets the digital certificate 154 with the highest priority among the plurality of digital certificates 154 read out in S5 as the digital certificate 154 for PnC charging. The priority of the digital certificate 154 is set in advance. Then, the process proceeds to S34.

[0082] In S34, the processor 151 determines whether the charging connector 301 is connected to the electric vehicle 200 (socket 160) and whether a communication connection ensuring security is established between the electric vehicle 200 and the charging station 300. If the communication connection is established (Yes in S33), the process proceeds to S35. If the communication connection is not established (No in S33), the process of S34 is repeated until the communication connection is established. In addition, the communication connection is established between the electric vehicle 200 and the charging station 300 using the user datagram protocol (UDP), the transmission control protocol (TCP), the transport layer security (TLS), etc.

[0083] In S35, various authentications are performed between the electric vehicle 200 and the charging station 300. For example, processes such as identification, data authentication, and authorization are performed.

[0084] In S36, settings are performed, for example, target settings and charging schedule settings are performed.

[0085] In S37, PnC charging is performed between the electric vehicle 200 and the charging station 300. In S38, the PnC charging is terminated.

[0086] As described above, in the present embodiment, the charging control device 100 includes the processor 151 for selecting a digital certificate 154 suitable for the charging station 300 from among the plurality of digital certificates 154 based on the predetermined information (identification information and history information) related to the charging station 300 that performs external charging between the charging station 300 and the electric vehicle 200. The communication device 140 transmits the selected digital certificate 154 to the charging station 300. Thus, the charging control device 100 can obtain the information of the digital certificate 154 suitable for the charging station 300 before external charging. As a result, the digital certificate 154 suitable for the charging station 300 can be transmitted to the charging station 300 more reliably than when the information of the digital certificate 154 suitable for the charging station 300 is not obtained in advance. Thus, external charging can be performed more reliably.

[0087] Furthermore, unlike a case where the user manually switches the digital certificate 154, an appropriate digital certificate 154 is automatically set, thereby reducing the user's trouble.

[0088] In the above embodiment, the control when the digital certificate 154 is set (read) during external charging is shown, but the present disclosure is not limited to this. Instead of or in addition to the external charging, the same control as in the above embodiment may be performed when the digital certificate 154 is set (read) during external discharge (external power supply). In this case, external discharge (external power supply) is an example of "power transmission" in the present disclosure.

[0089] In the above embodiment, an example is shown in which three determinations are performed: whether the charging station 300 is set as the destination, whether the charging station 300 is within a predetermined distance, and whether there is a history of charging (PnC charging) in the past, but the present disclosure is not limited to this. Only one or two of the above three determinations may be performed. In addition, it is also possible not to perform the determination of whether the identification information of the charging station 300 can be obtained (see Figure 4 S6 in ).

[0090] In the above embodiment, an example is shown in which the charging control device 100 is provided in the electric vehicle 200 , but the present disclosure is not limited thereto. The charging control device 100 may also be provided in the server 400 .

[0091] In the above embodiment, an example is shown in which the charging system 1 is constituted by the electric vehicle 200, the charging station 300, and the server 400, but the present disclosure is not limited thereto. The charging system may also be constituted by the electric vehicle 200 and the charging station 300.

[0092] In the above embodiment, an example is shown in which the identification information of the charging station 300 is obtained from the charging station 300 or the server 400, but the present disclosure is not limited thereto. For example, the identification information of the charging station 300 may be stored in the storage device 153. In this case, the identification information stored in the storage device 153 is obtained (read) by the processor 151.

[0093] In the above embodiment, an example is shown in which the history information of external charging is stored in the storage device 153 , but the present disclosure is not limited thereto. The history information may also be stored in the server 400 .

[0094] In addition, the structures of the above-described embodiment and each of the above-described modifications may be combined with each other.

[0095] The embodiments disclosed this time should be considered as illustrative in all aspects and not restrictive. The scope of the present disclosure is indicated by the claims rather than the description of the embodiments described above, and is intended to include all modifications within the meaning and scope equivalent to the claims.

Claims

1. A power transmission control device for controlling power transmission, wherein the power transmission includes at least one of charging and discharging of a secondary battery of an electric vehicle, the power transmission control device comprising: a recording unit, recording a plurality of protocol certificate information related to the power transmission; an acquisition unit that acquires predetermined information related to a power station and performs the power transmission between the power station and the electric vehicle; a selection unit that selects protocol certificate information suitable for the power station from among the plurality of protocol certificate information based on the acquired predetermined information; and The sending unit sends the selected protocol certificate information to the power station.

2. The power transmission control device according to claim 1, wherein: The acquisition unit acquires, when the power station is set as the destination, identification information of the power station set as the destination as the predetermined information, The selection unit selects protocol certificate information suitable for the power station set as the destination based on the identification information.

3. The power transmission control device according to claim 1, wherein: the obtaining unit obtains identification information of the power station located within the predetermined distance as the predetermined information when the distance between the electric vehicle and the power station becomes within the predetermined distance; The selection section selects protocol certificate information suitable for the power station located within a predetermined distance based on the identification information.

4. The power transmission control device according to claim 1, wherein: When the distance between the electric vehicle and the power station becomes within a predetermined distance, the acquisition unit acquires the past history information of the power transmission of the power station located within the predetermined distance as the predetermined information, The selection unit selects protocol certificate information suitable for the power station located within the predetermined distance based on the history information.

5. The power transmission control device according to any one of claims 1 to 4, wherein: In a condition where the power station is not set as a destination, when the distance between the electric vehicle and the power station is within a predetermined distance and identification information of the power station located within the predetermined distance can be obtained by the acquisition unit, the selection unit selects protocol certificate information suitable for the power station located within the predetermined distance based on the identification information, In a condition where the power station is not set as the destination, when the distance between the electric vehicle and the power station is within the predetermined distance and the identification information cannot be acquired by the acquisition unit, the selection unit uses the past power transmission history information of the power station located within the predetermined distance to select the protocol certificate information suitable for the power station located within the predetermined distance.

6. The power transmission control device according to claim 2 or 3, wherein: The identification information includes information of an electric power company cooperating with the electric power station.

Images