Battery replacement system

Abstract

To provide a battery replacement system capable of suppressing degradation of replacement batteries.SOLUTION: A battery replacement system 100 includes a battery replacement device 10 equipped with a battery pack 201 (vehicle battery) mounted on a vehicle 200 and at least one battery pack 101 (replacement battery) exchangeable therewith, a heating device 30 for heating the battery pack 101, and a control device 20. The control device 20 sets a heating start time t1 (first time) to initiate heating of the battery pack 101 by the heating device 30, on the basis of information regarding the usage status of the battery replacement device 10 and information regarding the outside temperature.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a battery exchange system. [Background technology]

[0002] Japanese Patent Application Laid-Open Publication No. 2018-160364 (Patent Document 1) discloses a battery management system that manages mobile batteries for loan to users. The battery management system determines the timing to start charging the mobile battery based on the demand forecast and reservation status of the mobile battery. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-160364 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned Patent Document 1, the charging timing is set based on the demand forecast and reservation status of the mobile battery, but the heating of the mobile battery and the timing of this heating are not taken into consideration. If the temperature of the mobile battery is raised too soon before the mobile battery is lent to the user, the mobile battery will remain at a high temperature for a long time, which may cause the mobile battery to deteriorate.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a battery exchange system that can suppress deterioration of replacement batteries. [Means for solving the problem]

[0006] A battery exchange system according to one aspect of the present disclosure includes a battery exchange device having at least one replacement battery replaceable with a vehicle battery installed in a vehicle, a heating device that heats the at least one replacement battery, and at least one control device, wherein the at least one control device sets a first time for the heating device to start heating the at least one replacement battery based on information on the usage status of the battery exchange device and information on the outside air temperature.

[0007] In a battery exchange system according to one aspect of the present disclosure, as described above, any one of at least one control device sets a first time for starting heating of at least one replacement battery by the heating device based on information about the usage status of the battery exchange device and information about the outside air temperature. By setting the first time based on information about the usage status of the battery exchange device, it is possible to prevent the replacement battery from heating up too early compared to the timing of battery exchange. Furthermore, by setting the first time based on information about the outside air temperature, it is possible to prevent the temperature of the replacement battery from reaching a set temperature too early due to, for example, high outside air temperature. As a result, it is possible to prevent the temperature of the replacement battery from remaining high for a long period of time. This makes it possible to suppress deterioration of the replacement battery.

[0008] At least one of the control devices may set the first time period so that the higher the congestion level of the battery exchange device, the earlier the start of temperature increase, and so that the higher the outside air temperature, the later the start of temperature increase. This configuration can prevent the replacement battery from heating up relatively quickly when the battery exchange device is not crowded and the demand for a replacement battery is relatively low. It can also prevent the replacement battery from heating up too quickly when the outside air temperature is high and the replacement battery temperature is expected to reach the set temperature quickly. As a result, it is easy to prevent the replacement battery temperature from remaining high for a long time.

[0009] The battery exchange system may include a charging device that charges at least one replacement battery. One of the at least one control devices sets a second time for starting charging by the charging device based on information about the usage status of the battery exchange device. This configuration can prevent the replacement battery from being charged excessively earlier than the timing of battery exchange. As a result, it can prevent the replacement battery's SOC (State Of Charge) from being high for a long period of time. This can more effectively prevent deterioration of the replacement battery.

[0010] The at least one control device may change the charging method of the charging device from normal charging to rapid charging based on information about the usage status of the battery exchange device. The at least one control device sets the second time period based on the charging method. This configuration makes it possible to appropriately set the second time period based on the charging method (charging rate). As a result, it is possible to further prevent the replacement battery from having a high SOC for a long period of time.

[0011] One of the at least one control device may set the first time period and the second time period so that the temperature raising device raises the temperature before the charging device charges the battery. This configuration can prevent the replacement battery from being charged when its temperature is low. As a result, it can prevent the charging efficiency of the replacement battery from decreasing.

[0012] The at least one replacement battery may include a plurality of replacement batteries. One of the at least one control device may set the number of replacement batteries among the plurality of replacement batteries for which the first time period is to be set based on information about the usage status of the battery exchange device. With this configuration, the number of replacement batteries for which the first time period is to be set can be changed as appropriate depending on the usage status of the battery exchange device, making it possible to easily adjust the power consumption by the heating device depending on the usage status of the battery exchange device.

[0013] If the number of replacement batteries is greater than a predetermined number, one of the at least one control device may set the first time period for some of the replacement batteries based on information about the usage status of the battery exchange device. This configuration reduces the processing load on the at least one control device compared to setting the first time period for all replacement batteries. [Effects of the Invention]

[0014] According to the present disclosure, it is possible to suppress deterioration of a replacement battery that is replaced with a vehicle battery installed in a vehicle. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram illustrating a configuration of a battery exchange system according to an embodiment. [Figure 2] FIG. 3 is a sequence diagram illustrating control of the battery exchange system according to an embodiment. [Figure 3] FIG. 3 is a diagram illustrating an example of the process in step S4 of FIG. 2. [Figure 4] FIG. 3 is a diagram illustrating an example of the process in step S6 of FIG. 2. [Figure 5] FIG. 3 is a diagram showing an example of a table used in step S6 of FIG. 2. [Figure 6] FIG. 3 is a diagram illustrating an example of the process of step S10 in FIG. 2. [Figure 7] FIG. 10 is a diagram illustrating a method for setting a temperature rise start time in a battery exchange system according to a modified example of an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] 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 designated by the same reference numerals, and description thereof will not be repeated.

[0017] <Battery exchange system configuration> 1 is a diagram showing the configuration of a battery exchange system 100 according to this embodiment. The battery exchange system 100 is a system for exchanging a battery pack 201 mounted on a vehicle 200 with a battery pack 101 described below. The battery pack 101 and the battery pack 201 are examples of a "replacement battery" and a "vehicle battery" in the present disclosure, respectively.

[0018] The battery pack 201 stores electric power used to drive the vehicle 200, for example. The vehicle 200 is, for example, a plug-in hybrid electric vehicle (PHEV), a battery electric vehicle (BEV), or a fuel cell electric vehicle (FCEV).

[0019] The battery exchange system 100 includes a battery exchange device 10, a control device 20, a temperature raising device 30, and a charging device 40.

[0020] The battery exchange device 10 includes a housing 11 and a battery exchange device main body 12. As shown in Fig. 1, the housing 11 and the battery exchange device main body 12 are provided side by side.

[0021] The battery exchange device 10 includes at least one battery pack 101 that can be exchanged with a battery pack 201 of the vehicle 200. The storage 11 is configured to be able to store a plurality of battery packs 101.

[0022] The battery exchange device main body 12 exchanges the battery pack 201 of the vehicle 200 with one of the plurality of battery packs 101 stored in the storage shed 11. The battery exchange device main body 12 is provided with an entrance / exit 12a for the vehicle 200 to enter and exit. The battery exchange device main body 12 is also provided with a plurality of devices (jigs) and the like (not shown) used for battery exchange.

[0023] The battery exchange device 10 (for example, the battery exchange device main body 12) is provided with a camera 12b. The camera 12b captures images of vehicles (for example, vehicles waiting for battery exchange) around the battery exchange device main body 12. Note that the battery exchange device 10 does not necessarily have to be provided with the camera 12b.

[0024] The control device 20 manages various controls in the battery exchange system 100. The control device 20 may be provided inside the battery exchange device 10, or may be provided in a location different from the battery exchange device 10.

[0025] The control device 20 includes a processor 21, a memory 22, and a communication unit 23. The processor 21 generates command signals for controlling, for example, the battery exchange device 10, the heating device 30, and the charging device 40. These command signals may be transmitted to each device via, for example, the communication unit 23.

[0026] The memory 22 stores information used in the programs (for example, maps, formulas, and various parameters) in addition to the programs executed by the processor 21. For example, the memory 22 stores information on the reservation status of the battery exchange device 10, information on the usage history of the battery exchange device 10, and the like.

[0027] The communication unit 23 communicates with, for example, each of the battery exchange device 10, the temperature raising device 30, and the charging device 40. The communication unit 23 may also be able to access the Internet by communicating with an external web server or the like. The communication unit 23 may also be able to communicate with a communication device (not shown) mounted on the vehicle 200.

[0028] The temperature raising device 30 raises the temperature of the battery pack 101 provided in the battery exchange device 10. The temperature raising device 30 can raise the temperature of multiple battery packs 101 simultaneously. The timing at which the temperature raising device 30 starts raising the temperature is controlled by the processor 21 of the control device 20. Note that, although FIG. 1 illustrates an example in which the temperature raising device 30 is placed in the storage 11, the placement location of the temperature raising device 30 is not limited to this example.

[0029] The charging device 40 charges the battery packs 101 provided in the battery exchange device 10. The charging device 40 can charge multiple battery packs 101 simultaneously. The timing at which charging by the charging device 40 starts is controlled by the processor 21 of the control device 20. Note that, although FIG. 1 illustrates an example in which the charging device 40 is placed in the storage shed 11, the location of the charging device 40 is not limited to this example.

[0030] In conventional systems, charging timing is set based on battery pack demand forecasts and reservation status, but the timing of heating the battery pack is not taken into consideration. If the battery pack is heated too early before the battery replacement, the battery pack will remain hot for a long time, which will accelerate its deterioration.

[0031] Therefore, in this embodiment, the control device 20 (processor 21) sets a temperature rise start time t1 at which the temperature rise device 30 starts raising the temperature of the battery pack 101, based on information on the usage status of the battery exchange device 10 and information on the outside air temperature. The temperature rise start time t1 is an example of the "first time" in the present disclosure.

[0032] Furthermore, in this embodiment, the control device 20 (processor 21) sets a charging start time t2 at which the charging device 40 starts charging the battery pack 101, based on information about the usage status of the battery exchange device 10. The charging start time t2 is an example of the "second time" in the present disclosure.

[0033] The above-mentioned usage status of the battery exchange apparatus 10 includes the current usage status of the battery exchange apparatus 10. Furthermore, the information related to the outside air temperature includes information about the current outside air temperature. Control in the battery exchange system 100 will be described in detail with reference to the control flow in Fig. 2.

[0034] <Battery exchange system control flow> The control flow of the battery exchange system 100 will be described with reference to Figure 2 and subsequent figures. Each control shown in Figure 2 is executed by the control device 20 (processor 21). The control flow shown in Figure 2 may be repeated at predetermined control intervals.

[0035] In step S1, the control device 20 acquires information about the usage status of the battery exchange device 10. Specifically, the information about the usage status of the battery exchange device 10 may include information about the current congestion level of the battery exchange device 10 based on the reservation status of the battery exchange device 10. The information about the usage status of the battery exchange device 10 may also include information about the current congestion level of the battery exchange device 10 based on, for example, the number of vehicles captured by the camera 12b (FIG. 1). The information about the usage status of the battery exchange device 10 may also include information about whether the battery exchange device 10 is currently in use.

[0036] The information on the usage status of the battery exchange device 10 may also include information on the current congestion level of the battery exchange device 10 based on the number of users of the battery exchange device 10 predicted using the trained model. The trained model may be generated by machine learning techniques such as deep learning.

[0037] In step S2, the control device 20 acquires information related to the outside air temperature. Specifically, the information related to the outside air temperature may include information related to the current outside air temperature based on temperature information acquired from the Internet or the like via the communication unit 23. The information related to the outside air temperature may also include information related to the current outside air temperature based on a detection value of a temperature sensor (not shown) provided in the battery exchange device 10.

[0038] In step S3, the control device 20 determines whether the number of battery packs 101 included in the battery exchange device 10 is greater than 10. If the number of battery packs 101 is greater than 10 (Yes in S3), the process proceeds to step S4. If the number of battery packs 101 is less than 10 (No in S3), the process proceeds to step S5. Note that the threshold value of 10 is an example of the "predetermined number" in the present disclosure. The threshold value may be other than 10.

[0039] In step S4, the control device 20 determines the number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are to be set. At this time, the control device 20 determines the number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are to be set based on the usage status (current congestion level) of the battery exchange device 10. The specific determination method will be described later.

[0040] Each of the multiple battery packs 101 in the battery exchange apparatus 10 may be assigned a priority indicating the order in which the temperature-rise start time t1 and the charging start time t2 are set. For example, if the number of battery packs 101 determined in step S4 is five, the battery packs 101 with priorities 1 to 5 may be selected as the battery packs 101 for which the temperature-rise start time t1 and the charging start time t2 are set. This order (priority) may be updated (moved up) every time the number of battery packs 101 included in the battery exchange apparatus 10 decreases due to battery replacement.

[0041] In step S5, the control device 20 determines to set the temperature rise start time t1 and the charge start time t2 for all the battery packs 101 provided in the battery exchange device 10.

[0042] In step S6, the control device 20 sets the temperature rise start time t1 for the battery packs 101. That is, the temperature rise start time t1 is set for the number of battery packs 101 corresponding to step S4 or step S5. A specific setting method will be described later.

[0043] In step S7, the control device 20 determines whether the outside air temperature is higher than temperature T1 (for example, 25°C). Using the information acquired in step S2, the control device 20 determines whether the current outside air temperature is higher than temperature T1. If the outside air temperature is higher than temperature T1 (Yes in S7), the process proceeds to step S8. If the outside air temperature is equal to or lower than temperature T1 (No in S7), the process proceeds to step S10.

[0044] In step S8, the control device 20 determines whether the battery exchange device 10 is congested. For example, if the current congestion level of the battery exchange device 10 calculated in step S1 is higher than a predetermined threshold, the control device 20 determines that the battery exchange device 10 is congested. If it is determined that the battery exchange device 10 is congested (Yes in step S8), the process proceeds to step S9. If it is determined that the battery exchange device 10 is not congested (No in step S8), the process proceeds to step S10.

[0045] In step S9, the control device 20 changes the charging method (charging scheme) of the battery pack 101 by the charging device 40 from normal charging to rapid charging. For example, the control device 20 may switch the charging circuit of the charging device 40 to a circuit for rapid charging by sending a signal to the charging device 40.

[0046] In step S10, the control device 20 sets a charging start time t2 for the battery pack 101. Specifically, the control device 20 sets the charging start time t2 based on the charging method (charging scheme) of the charging device 40 and the usage status (current congestion level) of the battery exchange device 10. The control device 20 sets the charging start time t2 so that the charging start time t2 is later than the temperature rise start time t1. This allows the battery pack 101 to be charged in a state where the battery pack 101 has been heated, thereby making charging more efficient. At this time, the control device 20 may change the temperature rise start time t1 for adjustment. A specific method for setting the charging start time t2 will be described later.

[0047] Fig. 3 is a diagram showing details of the control in step S4 in Fig. 2. As the current congestion level of the battery exchange apparatus 10 increases, the control device 20 increases the number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are set. Note that this number may be equal to or greater than 10 and equal to or less than the total number of battery packs 101 in the battery exchange apparatus 10. Also, Fig. 3 shows an example in which the number increases linearly with an increase in the congestion level of the battery exchange apparatus 10, but the tendency of the increase in the number is not limited to this example. For example, the number may increase quadratically with an increase in the congestion level of the battery exchange apparatus 10.

[0048] Fig. 4 is a diagram showing details of the control in step S6 in Fig. 2. The control device 20 sets the time to start heating the battery pack 101 earlier (solid line) as the current congestion level of the battery exchange device 10 is higher, and sets the time to start heating the battery pack 101 later (dashed line) as the outside air temperature is higher. Fig. 4 shows an example in which the time to start heating the battery pack 101 changes linearly with each of the congestion level of the battery exchange device 10 and the outside air temperature, but the tendency of change in the time to start heating the battery pack 101 is not limited to the above example. For example, the time to start heating the battery pack 101 may change quadratically with at least one of the congestion level of the battery exchange device 10 and the outside air temperature.

[0049] The memory 22 (FIG. 1) also stores a table 22a indicating the relationship between the current congestion level of the battery exchange apparatus 10, the outside air temperature, and the length of time tx until the temperature rise start time t1. FIG. 5 is a diagram showing an example of the table 22a. The control device 20 calculates the length of time tx until the temperature rise start time t1 by referring to the congestion level of the battery exchange apparatus 10, the outside air temperature, and the table 22a. The control device 20 then calculates the temperature rise start time t1 by adding the length of time tx calculated from the table 22a to the current time. The length of time tx decreases as you move to the right in the table 22a. The length of time tx also decreases as you move downward in the table 22a. That is, the length of time tx decreases as you move downward and to the right in the table 22a. Note that, in reality, the length of time tx is set in a matrix in the table 22a, but for simplicity, the specific display of the length of time tx is omitted in FIG. 5.

[0050] Fig. 6 is a diagram showing details of the control in step S10 in Fig. 2. The control device 20 sets the charging start time t2 earlier as the current congestion level of the battery exchange device 10 increases. Fig. 6 shows an example in which the charging start time t2 changes linearly with the congestion level of the battery exchange device 10, but the tendency of change in the charging start time t2 is not limited to the above example. For example, the charging start time t2 may change quadratically with the congestion level of the battery exchange device 10.

[0051] When the current congestion level of the battery exchange device 10 is equal to or greater than a predetermined threshold value α, the control device 20 switches the charging method of the battery pack 101 from normal charging to rapid charging. Also, when the current congestion level of the battery exchange device 10 falls from equal to or greater than the threshold value α to less than the threshold value α, the control device 20 switches the charging method of the battery pack 101 from rapid charging to normal charging.

[0052] When the charging method of the battery pack 101 is rapid charging, the control device 20 reduces the amount by which the charging start time t2 is advanced in response to an increase in the congestion level of the battery exchange device 10 (the slope of the straight line in Figure 6) compared to when the charging method of the battery pack 101 is normal charging.

[0053] As described above, in this embodiment, the control device 20 sets the temperature rise start time t1 at which the temperature rise device 30 starts raising the temperature of the battery pack 101, based on information about the usage status of the battery exchange device 10 and information about the outside air temperature. This makes it possible to raise the temperature of the battery pack 101 to the set temperature at an appropriate timing, compared to when the time to start raising the temperature of the battery pack 101 is set without taking the outside air temperature into consideration. As a result, it is possible to prevent the temperature of the battery pack 101 from remaining high for a long period of time. This makes it possible to suppress deterioration of the battery pack 101. Furthermore, because the usage status of the battery exchange device 10 is also taken into consideration, it is possible to more effectively suppress deterioration of the battery pack 101.

[0054] In the above embodiment, an example has been shown in which the temperature rise start time t1 of the battery pack 101 is set based on the current congestion level of the battery exchange apparatus 10, but the present disclosure is not limited to this. For example, the temperature rise start time t1 may be set based on the future congestion level of the battery exchange apparatus 10 (which may include the current congestion level).

[0055] 7, the time to start raising the temperature of the battery packs 101 is set based on a prediction of the future congestion level of the battery exchange apparatus 10. Specifically, based on the time transition (waveform of the dashed line) (hereinafter referred to as the first waveform) of the predicted value of the future congestion level of the battery exchange apparatus 10, the time transition (waveform of the solid line) (hereinafter referred to as the second waveform) of the number of battery packs 101 that will start raising the temperature in the future is calculated.

[0056] In the example shown in Fig. 7, the second waveform is shifted forward by a time Δt from the first waveform. The time Δt may be set based on, for example, the outside air temperature. For example, the higher the outside air temperature, the shorter the time Δt may be set. In this case, the later the temperature rise start time is set for more battery packs 101.

[0057] In this case, the outside temperature may be the current outside temperature or a predicted value of the future outside temperature. The predicted value of the future outside temperature may be, for example, an average value of predicted values ​​of the outside temperature for one day, or a predicted value of the outside temperature for each time. When a predicted value of the outside temperature for each time is used, the shift amount (Δt) may be different for each time. In this case, the second waveform does not have the same shape as the first waveform. Furthermore, the future outside temperature may be predicted based on, for example, seasonal information, day / night information, weather information, etc.

[0058] The time to start charging the battery pack 101 may also be set in the same manner as in Fig. 7. In this case, the shift amount corresponding to the time Δt may be a fixed value.

[0059] The temperature rise start time t1 may also be set based on the past congestion level of the battery exchange device 10. For example, the temperature rise start time t1 may be set based on information about the congestion level of each time period and each day of the week over a predetermined period of time in the past (for example, from one month ago to the present) of the battery exchange device 10. Setting the temperature rise start time t1 based on this past information may be performed using a trained model generated by machine learning technology such as deep learning.

[0060] In the above embodiment, an example was shown in which the temperature rise start time t1 of the battery pack 101 is set based on the current outside air temperature, but the present disclosure is not limited to this. As explained in Fig. 7 etc., the temperature rise start time t1 may be set based on future and past outside air temperatures of the battery exchange device 10.

[0061] In the above embodiment, an example was shown in which the temperature rise start time t1 becomes earlier as the congestion level of the battery exchange apparatus 10 becomes higher, but the present disclosure is not limited to this. The temperature rise start time t1 may become later as the congestion level of the battery exchange apparatus 10 becomes higher.

[0062] In the above embodiment, an example is shown in which normal charging is switched to rapid charging based on the usage status of the battery exchange device 10, but the present disclosure is not limited to this. The charging method may be fixed to normal charging (or rapid charging).

[0063] In the above embodiment, an example has been shown in which the temperature rise start time t1 and the charging start time t2 are set so that the temperature rise of the battery pack 101 occurs before the charging of the battery pack 101, but the present disclosure is not limited to this. The temperature rise start time t1 and the charging start time t2 may also be set so that the charging of the battery pack 101 occurs simultaneously with or before the temperature rise of the battery pack 101.

[0064] In the above embodiment, an example was shown in which the number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are set is set based on the usage status of the battery exchange apparatus 10, but the present disclosure is not limited to this. The number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are set may be constant regardless of the usage status of the battery exchange apparatus 10.

[0065] In the above embodiment, an example has been shown in which the temperature rise start time t1 and the charging start time t2 are set for all battery packs 101 when the number of battery packs 101 provided in the battery exchange device 10 is a predetermined number (10 in the above embodiment) or less, but the present disclosure is not limited to this. Regardless of the number of battery packs 101 provided in the battery exchange device 10, the temperature rise start time t1 and the charging start time t2 may be set for all battery packs 101.

[0066] In the above embodiment, an example has been shown in which the control device 20 (processor 21) executes each process described in the above embodiment, but the present disclosure is not limited to this. For example, each process may be executed by a different control device (processor). Also, a first control device (first processor) capable of executing multiple processes and a second control device (second processor) that executes a process different from that of the first control device (first processor) may be provided.

[0067] In the above embodiment, the temperature rise start time t1 is calculated using the table 22a, but the present disclosure is not limited to this. For example, the temperature rise start time t1 may be calculated using a predetermined arithmetic expression based on the temperature rise start time of the battery pack 101 according to the congestion level of the battery exchange apparatus 10 and the temperature rise start time of the battery pack 101 according to the outside air temperature. In this case, the congestion level of the battery exchange apparatus 10 and the outside air temperature may be weighted differently.

[0068] In the above embodiment, an example was shown in which the number of battery packs 101 for which the temperature rise start time t1 and the charging start time t2 are set is determined based on the congestion level of the battery exchange apparatus 10, but the present disclosure is not limited to this. For example, the temperature rise start time t1 and the charging start time t2 may be set for the same number of battery packs 101 as the number of vehicles that have reserved use of the battery exchange apparatus 10.

[0069] In the above embodiment, an example has been shown in which the charging start time t2 is set based on the charging method (charging scheme) of the charging device 40 and the usage status (current congestion level) of the battery exchange device 10, but the present disclosure is not limited to this. For example, the charging start time t2 may also be set based on the SOC of the battery pack 101.

[0070] The configurations of the above-described embodiment and the various modified examples may be combined with each other.

[0071] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is defined by the claims, not by the description of the above embodiments, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0072] 10 battery exchange device, 20 control device, 30 heating device, 40 charging device, 100 battery exchange system, 101 battery pack (replacement battery), 200 vehicle, 201 battery pack (vehicle battery).

Claims

1. a battery exchange device including at least one replacement battery that can be replaced with a vehicle battery mounted on the vehicle; a heating device for heating the at least one replacement battery; at least one control device; A battery exchange system in which any one of the at least one control device sets a first time at which the heating device starts heating the at least one replacement battery based on information on the usage status of the battery exchange device and information on the outside air temperature.

2. 2. The battery exchange system according to claim 1, wherein any one of the at least one control devices sets the first time period so that the heating starts earlier the higher the degree of congestion of the battery exchange device, and sets the first time period so that the heating starts later the higher the outside air temperature.

3. a charging device for charging the at least one replacement battery; 3. The battery exchange system according to claim 1, wherein any one of the at least one control devices sets a second time at which charging by the charging device is to start based on information on a usage status of the battery exchange device.

4. any one of the at least one control devices changes the charging method of the charging device from normal charging to rapid charging based on information on a usage status of the battery exchange device; The battery exchange system according to claim 3 , wherein any one of the at least one control device sets the second time period based on the charging method.

5. 4. The battery exchange system according to claim 3, wherein any one of the at least one control devices sets each of the first time period and the second time period so that the heating by the heating device is performed before the charging by the charging device.

6. the at least one replacement battery includes a plurality of replacement batteries; 3. The battery exchange system of claim 1, wherein one of the at least one control devices sets the number of replacement batteries among the plurality of replacement batteries for which the first time is to be set based on information on the usage status of the battery exchange device.

7. The battery exchange system of claim 6, wherein any one of the at least one control device sets the first time for some of the plurality of replacement batteries based on information on the usage status of the battery exchange device when the number of the plurality of replacement batteries is greater than a predetermined number.

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