Battery replacement system and battery

Abstract

The invention relates to a battery replacement system and a battery. A battery replacement system is provided with an electric vehicle in which a battery can be replaced, a battery mounted on the electric vehicle, and a control device. The control device associates and stores vehicle characteristic information indicating characteristics of the electric vehicle when the electric vehicle is driven with battery identification information of the battery, battery characteristic information indicating characteristics of the battery, and vehicle identification information of the electric vehicle. When the battery is mounted in the electric vehicle, the control device generates battery information on the basis of the battery characteristic information and vehicle characteristic information corresponding to the vehicle identification information, and transmits the battery information to the electric vehicle.

Description

Technical Field

[0001] The present disclosure relates to a battery and a battery replacement system. Background Art

[0002] In Japanese Unexamined Patent Application Publication No. 2023-101504, a vehicle equipped with a replaceable battery is disclosed. Summary of the Invention

[0003] Although not explicitly described in Japanese Unexamined Patent Application Publication No. 2023-101504, due to battery replacement, the battery is sometimes not limited to a specific type of electric vehicle. Therefore, the battery is sometimes mounted on an electric vehicle that performs vehicle control that is not suitable for the battery. In this case, there is a possibility that the battery performance of the battery deteriorates rapidly.

[0004] The present disclosure has been made to solve the above problems, and an object thereof is to provide a battery replacement system and a battery that can suppress damage to the battery caused by vehicle control of an electric vehicle on which the battery is mounted due to battery replacement.

[0005] The battery replacement system according to the first aspect of the present disclosure includes:

[0006] An electric vehicle capable of replacing the battery;

[0007] A battery mounted on the electric vehicle; and

[0008] A control device.

[0009] The control device stores the vehicle characteristic information indicating the characteristics of the electric vehicle during driving, the battery identification information of the battery, the battery characteristic information indicating the characteristics of the battery, and the vehicle identification information of the electric vehicle in association with each other.

[0010] When the battery is mounted on the electric vehicle, the control device generates battery information based on the battery characteristic information and the vehicle characteristic information corresponding to the vehicle identification information, and sends the battery information to the electric vehicle.

[0011] In the control device according to the first aspect of the present disclosure, as described above, when the battery is mounted on the vehicle, the control device acquires the vehicle characteristic information corresponding to the vehicle unique information of the vehicle after mounting. Based on the battery characteristic information of the battery and the acquired vehicle characteristic information, the control device generates battery information and sends the battery information to the electric vehicle. In this way, the battery sends the battery information generated based on the vehicle characteristic information to the electric vehicle. Since the electric vehicle performs vehicle control based on the battery information acquired from the battery, damage to the battery due to the vehicle control of the electric vehicle can be suppressed.

[0012] The battery replacement system according to the first aspect of the present disclosure further includes a battery replacement station that stores the battery.

[0013] When the battery sends battery information to an electric vehicle, it reports the battery information to the user of the electric vehicle.

[0014] If configured in this way, the user can identify the battery information of the battery mounted on the electric vehicle.

[0015] In the battery replacement system according to the first aspect of the present disclosure,

[0016] The battery reports the battery information to the user by sending the battery information to at least one of a display device mounted on the electric vehicle and a user terminal owned by the user.

[0017] If configured in this way, the user can visually recognize the battery information, so that the battery information of the battery mounted on the electric vehicle can be easily conveyed to the user.

[0018] In the battery replacement system according to the first aspect of the present disclosure,

[0019] When the battery stores vehicle characteristic information corresponding to the electric vehicle on which the battery is mounted in the control unit,

[0020] Based on the battery characteristic information and the vehicle characteristic information corresponding to the electric vehicle, it is determined whether it is necessary to generate battery information changed according to the battery characteristic information.

[0021] When it is determined that it is necessary to generate battery information changed according to the battery characteristic information, battery information is generated based on the battery characteristic information and the vehicle characteristic information, and the generated battery information is sent.

[0022] When it is determined that there is no need to generate battery information changed according to the battery characteristic information, the battery characteristic information is sent as the battery information.

[0023] When the battery does not store vehicle characteristic information corresponding to the electric vehicle on which the battery is mounted in the control unit,

[0024] The battery characteristic information is sent as the battery information.

[0025] If configured in this way, battery information changed according to the battery characteristic information can be generated only when it is determined based on the vehicle characteristic information stored in the control unit that it is necessary to generate battery information changed according to the battery characteristic information.

[0026] The battery according to the second aspect of the present disclosure is a battery mounted on an electric vehicle capable of replacing the battery, and includes:

[0027] A control device; and

[0028] A communication unit capable of communicating with the electric vehicle.

[0029] The control device generates battery information based on vehicle characteristic information representing the characteristics of the electric vehicle during driving.

[0030] The communication unit sends the battery information to the electric vehicle.

[0031] If configured in this way, the battery sends the battery information generated based on the vehicle characteristic information to the electric vehicle. The electric vehicle performs vehicle control using the battery information obtained from the battery, so it is possible to suppress use in which the battery is damaged due to vehicle control of the electric vehicle.

[0032] According to the present disclosure, it is possible to suppress damage to the battery mounted on the electric vehicle due to battery replacement caused by vehicle control of the electric vehicle that deviates from the battery specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Hereinafter, features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals denote the same elements, where:

[0034] Figure 1 is a diagram showing the battery replacement system according to the present embodiment.

[0035] Figure 2 is a diagram showing a table recorded on the server according to the present embodiment.

[0036] Figure 3 is a diagram showing the control sequence between the server and the battery according to the present embodiment.

[0037] Figure 4 is a diagram showing the sequence for changing battery characteristic information according to the present embodiment.

[0038] Figure 5 is a diagram showing the sequence for changing battery characteristic information according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0039] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and the description thereof will not be repeated.

[0040] Structure of the battery replacement system

[0041] Figure 1 is a diagram showing the battery replacement system.

[0042] The battery replacement system 1 includes an electric vehicle 100, a server 200, and a battery replacement device 300. The electric vehicle 100 is, for example, a PHEV (Plug-in Hybrid Electric Vehicle), a BEV (Battery Electric Vehicle), or an FCEV (Fuel Cell Electric Vehicle). In addition, the server 200 is an example of the "control device" of the present disclosure.

[0043] The electric vehicle 100 includes a vehicle body 10 and a battery 30. The vehicle body 10 is the part of the electric vehicle 100 other than the battery 30. It includes a vehicle ECU (Electronic Control Unit) 11, a communication device 12, an HMI device 13, an SMR 14, a drive device 15, and a terminal 19A. In addition, the HMI device 13 is an example of the "display device" of the present disclosure.

[0044] The vehicle ECU 11 stores information related to the electric vehicle described later (hereinafter referred to as "vehicle identification information"). The vehicle ECU 11 is formed, for example, to be able to communicate with the communication device 12, the HMI device 13, the SMR 14, and the drive device 15 respectively through CAN (Controller Area Network) communication, and to communicate with the battery ECU 31 via a communication unit 35 described later. The vehicle ECU 11 controls the drive device 15 based on the battery information obtained from the battery 30.

[0045] In addition, the battery information includes, for example, at least part of the information indicating the upper limit input power (Winmax), upper limit output power (Woutmax), allowable current value, allowable voltage value, upper limit output current, upper limit input current, upper limit voltage, lower limit voltage, lower limit SOC, upper limit battery temperature, and lower limit battery temperature of the battery 30.

[0046] The communication device 12 is formed to be able to communicate with the server 200 and the battery replacement device 300. In addition, the communication device 12 may also be able to communicate with a user terminal 150 such as a mobile phone owned by the user of the electric vehicle.

[0047] The HMI device 13 is mounted on the vehicle, displays various information (such as map information and video content) on the display screen, and reports various information (such as traffic information and weather information, etc.) using sound. The HMI device 13 includes a display with a touch panel, a speaker, etc.

[0048] The SMR14 is provided between the drive device 15 and the battery 30. The SMR14 is configured to be able to switch the electrical connection of the electrical circuit between the drive device 15 and the battery 30 in accordance with an instruction from the vehicle ECU11. In addition, "SMR" means System Main Relay.

[0049] The drive device 15 includes an MG (Motor Generator, electric generator) not shown and a PCU (Power Control Unit, power control unit). The drive device 15 is configured to be able to drive the electric vehicle 100 using the power output from the battery 30.

[0050] The MG functions as a motor for driving. The MG is electrically connected to the battery 30 via the PCU. The MG converts the power from the battery 30 into torque and rotates the drive wheels of the electric vehicle 100. In addition, the MG performs regenerative power generation, for example, when the electric vehicle 100 decelerates, and charges the battery 30.

[0051] The PCU includes an inverter and a converter. The PCU supplies the power supplied from the battery 30 to the MG under the control of the vehicle ECU11.

[0052] The terminal 19A is configured to be able to be electrically connected to the terminal 19B formed on the storage battery 101. The vehicle body 10 is configured to be able to be electrically connected to the storage battery 101 via the terminals 19A and 19B.

[0053] The battery 30 includes a battery ECU31, a power storage module 32, a communication device 33, an SMR34, and a terminal 19B. The battery 30 is configured to be able to be replaced in the battery replacement device 300. In addition, the battery ECU31 is an example of the "control device" of the present disclosure.

[0054] The battery ECU31 records information related to the battery 30 described later (hereinafter referred to as "battery unique information"). The battery ECU31 is configured to be able to communicate with the vehicle ECU11 and the SMR22 respectively via the communication unit 35 described later, for example, by CAN communication. The battery ECU31 is configured to be able to switch the connection of the SMR22 according to an instruction from the vehicle ECU11.

[0055] The power storage module 32 is a secondary battery such as a lithium-ion battery, a nickel-metal hydride battery, or a sodium-ion battery, for example. The type of the secondary battery may be a liquid secondary battery or an all-solid-state secondary battery. The power storage module 32 is configured to be able to be electrically connected to the vehicle body 10 through the connection of the terminal 19A and the terminal 19B.

[0056] The communication device 33 is configured to be able to communicate with the server 200 and the battery replacement device 300. The SMR 34 is provided between the power storage module 32 and the terminal 19B. The SMR 34 is configured to be able to switch the electrical connection of the electrical circuit between the power storage module 32 and the terminal 19B in accordance with an instruction from the battery ECU 31. The communication unit 35 is configured to be able to communicate the battery ECU 31 with the vehicle ECU 11.

[0057] The server 200 includes a processor 210, a memory 220, and a communication device 230. In the memory 220, in addition to storing programs executed by the processor 210, information used in the programs (such as maps, formulas, and various parameters) is also stored. The communication device 230 is configured to be able to communicate with the communication device 33.

[0058] In the memory 220, there is stored Figure 2 the table 221 shown. In the table 221, battery-specific information (including battery identification information and battery characteristic information), vehicle identification information, and vehicle characteristic information are recorded in association with each other.

[0059] In the battery identification information that forms part of the battery-specific information, it includes information on the battery manufacturer related to the battery 30 and information on the battery model.

[0060] In the battery characteristic information that forms part of the battery-specific information, it includes information indicating the upper limit input power (Winmax), upper limit output power (Woutmax), allowable current value, allowable voltage value, upper limit output current, upper limit input current, upper and lower limit voltages, lower limit SOC, and upper and lower limit battery temperatures of the battery 30 in terms of specifications. In the vehicle identification information, it includes at least a part of the information on the manufacturer of the electric vehicle 100 and the model information.

[0061] In the vehicle characteristic information, it includes the vehicle characteristic information when the electric vehicle 100 is in operation (such as during driving and charging). More specifically, in the vehicle characteristic information, it includes any one of the information indicating the relationship between the temperature of the PCU during vehicle driving and the input power and output power of the battery 30, the information indicating the input power, output power, voltage, current, battery remaining amount, and battery temperature related to the battery 30 during vehicle driving, and the information indicating the charging power, charging voltage, charging current, and battery temperature, etc. related to the battery 30 during charging. The vehicle characteristic information at least includes the information indicating the relationship between the temperature of the PCU during vehicle driving and the input power and output power of the battery 30.

[0062] Based on the vehicle characteristic information of each of multiple electric vehicles including the electric vehicle 100 during driving (such as during traveling and charging), the information in Table 221 is created. For example, assume that the electric vehicle 100 is a vehicle of type F manufactured by manufacturer E and is equipped with a battery 30 of type B manufactured by manufacturer A. In this case, the vehicle characteristic information of the electric vehicle 100 during driving is sent from the battery 30 to the server 200. Moreover, based on the information from the battery 30, the information in Table 221 stored in the memory 220 of the server 200 (the vehicle characteristic information corresponding to the inherent information of the battery 30 of type B of manufacturer A and the vehicle identification information of the vehicle of type F of manufacturer E) is updated. In addition, when the vehicle characteristic information corresponding to the inherent information of the battery 30 of type B of manufacturer A and the vehicle identification information of the vehicle of type F of manufacturer E is not stored in the memory 220, the information from the battery 30 is newly registered in the memory 220.

[0063] Refer to again Figure 1 , the battery replacement device 300 includes: a battery replacement device main body 300a for performing battery replacement; and a storage 300b for storing the battery 30. Sometimes various types of batteries 30 are stored in the storage 300b. The battery replacement device main body 300a is a device for replacing the battery 30 mounted on the electric vehicle 100 with the battery 30 stored in the storage. The storage 300b is attached to the battery replacement device main body 300a. In the battery replacement device 300 (battery replacement device main body 300a), an entrance / exit 302 for the electric vehicle 100 to enter and exit is provided.

[0064] Here, among the vehicles whose batteries are replaced in the battery replacement device 300, there are various vehicles such as new cars, used cars, SUV types, and sports types. Therefore, depending on the vehicle, for example, there are vehicles in which the PCU becomes hot during driving or the vehicle is charged beyond the upper limit charging power of the battery during charging. As a result, there is a possibility that the vehicle itself is damaged or the battery is damaged.

[0065] On the other hand, in the present embodiment, after the battery replacement, the battery ECU 31 obtains, via the communication device 33, the vehicle characteristic information corresponding to the vehicle identification information of the electric vehicle 100 equipped with the battery 30 from the server 200 (memory 220).

[0066] Moreover, the battery ECU 31 uses the battery characteristic information and the vehicle characteristic information obtained from the server 200 to generate battery information to be sent to the electric vehicle 100.

[0067] For example, in order to prevent the temperature of the PCU from rising during driving, for the electric vehicle 100, regarding the battery 30, the upper limit output power of the battery information sent to the electric vehicle is set lower than the upper limit output power of the battery characteristic information, and this battery information is sent to the electric vehicle 100. The electric vehicle 100 sets the power supplied to the PCU based on the upper limit output power of the received battery information. As a result, during driving, the current flowing through the PCU is suppressed to be small, and the heating temperature of the PCU can be suppressed. Thereby, damage to the electric vehicle 100 can be suppressed.

[0068] In addition, for example, when the battery ECU 31 determines that the battery 30 is mounted on an electric vehicle 100 that performs vehicle control such as exceeding the allowable current of the battery during driving, or determines that it is mounted on an electric vehicle 100 that is out of the allowable range of the battery temperature during driving, for example, the battery information with the allowable current value set lower than the battery characteristic information is sent to the vehicle ECU 11. Since the electric vehicle 100 performs vehicle control based on the acquired battery information, vehicle control such as exceeding the allowable current of the battery or being out of the allowable range of the battery temperature during vehicle driving can be suppressed.

[0069] Control method related to change of battery information

[0070] Next, with reference to Figure 3 and Figure 4 , a control method related to the generation of the battery information of the battery 30 will be described.

[0071] Figure 3 The sequence when updating the information of the server 200 according to the vehicle characteristic information during driving of the electric vehicle 100 is shown. First, it is assumed that in S10, the electric vehicle 100 starts driving.

[0072] In S11, the battery ECU 31 acquires the vehicle identification information from the vehicle ECU 11.

[0073] In S12, the battery ECU 31 sends the battery unique information and the vehicle identification information to the server 200 via the communication device 33.

[0074] In S13, the battery ECU 31 sends the data of the vehicle characteristics of the electric vehicle 100 during driving of the electric vehicle 100 (measured data such as the output power, voltage, current, remaining battery amount, temperature, etc. of the battery 30) to the server 200 via the communication device 33.

[0075] In S14, the battery ECU 31 determines whether the running of the electric vehicle 100 has stopped. When the running of the electric vehicle 100 has stopped (Yes in S14), the process of the battery 30 ends. When the running of the electric vehicle 100 has not stopped (No in S14), the process returns to S13.

[0076] In S15, the server 200 associates and stores (saves) the data of the vehicle characteristics with the battery-specific information of the battery 30 and the vehicle identification information of the electric vehicle 100. The above data is stored in the memory 220.

[0077] In S16, the server 200 determines whether the running of the electric vehicle 100 has stopped. For example, the server 200 can also determine that the electric vehicle 100 has stopped according to the notification from the battery ECU 31. When it is determined that the running of the electric vehicle 100 has stopped, the process proceeds to S17. When it is determined that the running of the electric vehicle 100 has not stopped, the process returns to S15.

[0078] In S17, the server 200 performs data analysis on all the past vehicle characteristic data stored in association with the battery-specific information and the vehicle identification information. The meaning of the data analysis result is the same as the vehicle characteristic information.

[0079] In S18, the server 200 updates the battery characteristic information generated in S17 according to the existing battery characteristic information. Specifically, when the server 200 already has the battery characteristic information corresponding to the combination of the battery-specific information and the vehicle identification information in the memory 220, the existing battery characteristic information is updated to the battery characteristic information based on the analysis result of S17. In addition, when there is no existing battery characteristic information, the vehicle characteristic information based on the analysis result of S17 is newly registered in the memory 220.

[0080] Figure 4 It is a diagram showing a sequence for generating battery information of a battery according to vehicle characteristic information stored in a server. In S110, it is assumed that the battery 30 of the electric vehicle 100 is replaced in the battery replacement device 300.

[0081] In S115, the vehicle ECU 11 sends a battery replacement completion signal and vehicle identification information to the battery ECU 31. In addition, S115 does not necessarily start immediately after the battery replacement (S110) is completed. It can also be appropriately started after the battery replacement is completed and during the running of the electric vehicle 100.

[0082] In S120, the battery ECU 31 determines whether it has received the battery replacement completion signal and the vehicle identification information. If it has received them (Yes in S120), the process proceeds to S125. If it has not received them (No in S120), the process returns to S120.

[0083] In S125, the battery ECU 31 sends the battery unique information and the vehicle identification information to the server 200 via the communication device 33.

[0084] In S130, the server 200 determines whether it has received the battery unique information and the vehicle identification information. If it has received them (Yes in S130), the process proceeds to S135. If it has not received them (No in S130), the process returns to S130.

[0085] In S135, the server 200 determines whether the vehicle characteristic information corresponding to the battery unique information and the vehicle identification information is stored in the memory 220. If the vehicle characteristic information is stored (Yes in S135), the process proceeds to S145. If the vehicle characteristic information is not stored (No in S135), the process proceeds to S140.

[0086] In S140, the server 200 sends a message indicating that the vehicle characteristic information corresponding to the battery unique information of the battery 30 and the vehicle identification information of the electric vehicle 100 equipped with the battery 30 is not stored in the memory 220 to the battery 30. In addition, the information indicating that there is no such data can also be sent to the user terminal 150. After that, the control of the server 200 ends.

[0087] In S145, the server 200 sends the vehicle characteristic information corresponding to the battery unique information of the battery 30 and the vehicle identification information of the electric vehicle 100 equipped with the battery 30 to the electric vehicle 100. After that, the control of the server 200 ends.

[0088] In S149, the battery ECU 31 determines whether it has received the notification indicating no data. If it has received the notification (Yes in S149), the process proceeds to S160. If it has not received the notification (No in S149), the process proceeds to S150.

[0089] In S150, the battery ECU 31 determines whether it has received the vehicle characteristic information. That is, the battery ECU 31 determines whether there has been a combination record of the battery 30 and the electric vehicle 100 equipped with the battery 30 in the past. If it has received the battery characteristic information (Yes in S150), the process proceeds to S155. If it has not received the vehicle characteristic information (No in S150), the process returns to S149.

[0090] In S155, the battery ECU 31 determines whether the battery characteristic information can be sent as battery information based on the battery characteristic information and the vehicle characteristic information. For example, the battery ECU 31 compares the battery characteristic information of the battery 30 with the vehicle characteristic information to make the above determination. When it is possible to send the battery characteristic information as battery information (Yes in S155), the process proceeds to S160. When it is not possible to send the battery characteristic information as battery information (No in S155), the process proceeds to S165.

[0091] In S160, the battery ECU 31 sends the battery characteristic information as battery information. After that, the control of the battery ECU 31 ends.

[0092] In S165, the battery ECU 31 generates battery information with values changed according to the battery characteristic information (such as the maximum input / output, upper and lower limit voltages, upper limit current, upper and lower limit SOCs of the battery 30) based on the vehicle characteristic information. Specifically, the battery characteristic information and the vehicle characteristic information are compared. For example, when the electric vehicle 100 drives beyond the threshold value of the allowable current value, the battery ECU 31 generates battery information with the value obtained by subtracting the amount exceeding the threshold from the allowable current value included in the battery characteristic information as the allowable current value.

[0093] In S170, the battery ECU 31 sends the battery information obtained by changing the value of the battery characteristic information to the vehicle ECU 11. After that, the control of the battery ECU 31 ends.

[0094] In S175, the vehicle ECU 11 determines whether it has received battery information from the battery ECU 31. The battery ECU 31 that has received the battery information controls the vehicle according to the battery information. When the battery information is received (Yes in S175), the process proceeds to S180. When the battery information is not received (No in S175), the process will repeat S175.

[0095] In S180, the vehicle ECU 11 may display the battery information received from the battery ECU 31 on the HMI device 13 to notify the user of the electric vehicle 100 of the battery information. In addition, the vehicle ECU 11 may display the battery information received from the battery ECU 31 on the user terminal 150. Additionally, the vehicle ECU 11 may obtain the battery characteristic information from the battery ECU 31 and display it together with the battery information. After that, the control of the vehicle ECU 11 ends.

[0096] As described above, in the present embodiment, after the battery replacement is completed, vehicle characteristic information corresponding to the vehicle identification information of the electric vehicle 100 equipped with the battery 30 is acquired from the server 200. The battery 30 uses the acquired vehicle characteristic information to generate battery information, and the battery 30 sends the battery information to the vehicle ECU 11. The electric vehicle 100 controls the vehicle according to the battery information. Thus, it is possible to suppress the electric vehicle 100 from controlling the vehicle regardless of the battery characteristic information of the battery 30. Moreover, it is possible to suppress the battery 30 from being damaged due to the control of the electric vehicle 100.

[0097] In the present embodiment, the server 200 uses the vehicle characteristic data newly accumulated after the vehicle stops running, analyzes the vehicle characteristic data, and updates the existing vehicle characteristic data, but the present disclosure is not limited to this.

[0098] The server 200 may also analyze the vehicle characteristic data and update the existing vehicle characteristic information whenever a certain amount of vehicle characteristic data is accumulated even while the vehicle is running.

[0099] In the present embodiment, the server 200 receives the data of the vehicle characteristics associated with the battery unique information and the vehicle identification information from the battery ECU 31, analyzes the data of the vehicle characteristics, and newly creates or updates the analyzed data (vehicle characteristic information), but the present disclosure is not limited to this.

[0100] The battery ECU 31 may also accumulate the data of the vehicle characteristics in association with the vehicle identification information, analyze the data of the vehicle characteristics, and newly create or update the analyzed data (vehicle characteristic information).

[0101] In the present embodiment, the battery ECU 31 determines whether the battery characteristic information can be sent as the battery information based on the vehicle characteristic information. If it is determined that it can be sent, the battery ECU 31 creates the battery information with the value of the battery characteristic information changed based on the vehicle characteristic information, but the present disclosure is not limited to this.

[0102] It is also possible that the server 200 determines whether the battery characteristic information can be sent as the battery information based on the vehicle characteristic information. If it is determined that it can be sent, the server 200 creates the battery information with the value changed according to the battery characteristic information based on the vehicle characteristic information. The server 200 may also, when receiving the battery unique information and the vehicle identification information from the battery 30, instead of Figure 4 the vehicle characteristic information in S145, send the battery information. In this case, the battery 30 may also not determine whether the battery characteristic information can be sent as the battery information ( Figure 5 S155), but send the received battery information to the vehicle ECU 11.

[0103] The embodiments disclosed herein should be considered illustrative in all respects and not restrictive. The scope of the present disclosure is represented not by the description of the above embodiments but by the claims, including meanings equivalent to the claims and all modifications within the scope.

Claims

1. A battery replacement system comprising: Electric cars, with the ability to swap batteries; A battery, mounted on the electric vehicle; and Control device, The control device stores vehicle characteristic information indicating characteristics of the electric vehicle when the electric vehicle is driven in association with battery identification information of the battery, battery characteristic information indicating characteristics of the battery, and vehicle identification information of the electric vehicle, When the battery is mounted on the electric vehicle, the control device generates battery information based on the battery characteristic information and the vehicle characteristic information corresponding to the vehicle identification information, and transmits the battery information to the electric vehicle.

2. The battery replacement system according to claim 1, wherein: When the battery information is transmitted to the electric vehicle, the battery reports the battery information to a user of the electric vehicle.

3. The battery replacement system according to claim 2, wherein: The battery reports the battery information to the user by transmitting the battery information to at least one of a display device mounted on the electric vehicle and a user terminal owned by the user.

4. The battery replacement system according to any one of claims 1 to 3, wherein: When the battery stores the vehicle characteristic information corresponding to the electric vehicle equipped with the battery in the control unit, determining whether it is necessary to generate the battery information changed according to the battery characteristic information based on the battery characteristic information and the vehicle characteristic information corresponding to the electric vehicle; If it is determined that the battery information changed according to the battery characteristic information needs to be generated, the battery information is generated based on the battery characteristic information and the vehicle characteristic information, and the generated battery information is transmitted. If it is determined that the battery information changed according to the battery characteristic information does not need to be generated, the battery characteristic information is transmitted as the battery information, When the control unit does not store the vehicle characteristic information corresponding to the electric vehicle equipped with the battery, The battery characteristic information is transmitted as the battery information.

5. A battery installed in an electric vehicle capable of replacing the battery, the battery comprising: Control devices; and a communication unit capable of communicating with the electric vehicle, The control device generates battery information based on vehicle characteristic information indicating characteristics of the electric vehicle when the electric vehicle is driven, The communication unit transmits the battery information to the electric vehicle.

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