WO2023206484A1

WO2023206484A1 - Battery swapping method and device, and station control system and electric device

Info

Publication number: WO2023206484A1
Application number: PCT/CN2022/090583
Authority: WO
Inventors: 王霞
Original assignee: 时代电服科技有限公司
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-02
Also published as: CN117279796A

Abstract

Provided are a battery swapping method and device, and a station control system and an electric device. The method comprises: acquiring state information of a battery on an electric device by means of a wireless connection with the electric device (S210); and determining, according to the state information of the battery, whether to swap the battery at a battery swapping station (11) (S220). The battery swapping method facilitates the improvement of the battery swapping efficiency of an electric device at a battery swapping station (11).

Description

Methods and devices for replacing batteries, station control systems and electrical devices

Technical field

The present application relates to the field of battery technology, and in particular to a method and device for replacing batteries, a station control system and a power device.

Background technique

With the development of new energy technology, battery swap technology has become one of the development methods of battery technology. In battery swap technology, the battery of the electrical device that drives into the battery swap station can be removed, and the battery can be taken out from the battery swap station for use. Replace the electrical device.

How to improve the power-swapping efficiency of power-consuming devices in power-swapping stations is an issue that needs to be solved urgently.

Contents of the invention

Embodiments of the present application provide a battery replacement method and device, a station control system and a power consumption device, which are beneficial to improving the power replacement efficiency of the power replacement station.

In a first aspect, a method of replacing a battery is provided. The method includes: obtaining status information of the battery on the electric device through a wireless connection with the electric device; and determining whether the battery is replaced based on the status information of the battery. The battery swap station replaces the battery.

In this embodiment, since there is a wireless connection between the station control system of the power swap station and the power device, the station control system can obtain the status information of the battery on the power device through the wireless connection before the power swap, and Based on this, determining whether to replace the battery at the battery swap station will help avoid the situation of removing the battery and then returning it, thereby helping to improve the battery swap efficiency.

In a possible implementation, the status information of the battery includes fault information of the battery.

In this embodiment, fault information is used to explicitly indicate the fault of the battery, so that the station control system can directly use the fault information to determine whether to replace the battery. Therefore, the complexity of the logical judgment of the station control system is reduced.

In a possible implementation, the status information of the battery includes parameter information of the battery, and the parameter information includes at least one of electric quantity, voltage and temperature. Based on the status information of the battery, it is determined whether the battery is in the battery swap station. Replacing the battery includes: determining fault information of the battery based on parameter information of the battery; determining whether to replace the battery in the battery swap station based on the fault information of the battery.

In this embodiment, the battery fault information is determined by the station control system rather than by the battery management unit on the electrical device. Therefore, the station control system does not need to read the fault information obtained by the electrical device, thus reducing the signaling overhead of the station control system.

In a possible implementation, determining whether to replace the battery in the battery swap station based on the fault information of the battery includes: when the fault indicated by the fault information of the battery is within a preset fault level range, Make sure to replace the battery at the battery swap station.

In this embodiment, when the fault indicated by the fault information of the battery is within the preset fault level range, it is determined to replace the battery at the battery swap station, which is helpful to avoid the situation of removing the battery and then returning it, thereby helping to improve the efficiency of the battery. Battery exchange efficiency.

In a possible implementation, the method further includes: when it is determined that the battery is to be replaced at the power swap station, sending a first instruction to the electric device through the wireless connection, the first instruction being used to instruct the user. The electrical device satisfies the power exchange conditions; and receives, through the wireless connection, a second instruction sent by the electrical device in response to the first instruction. The second instruction is used to instruct the K batteries on the electrical device to be replaced by the power exchange station. M batteries in , M is a positive integer; according to the second instruction, M target batteries are determined in the battery swap station, and the M target batteries are used to replace the K batteries to provide electric energy for the electrical device.

In this embodiment, when the power consumption device meets the power swap conditions, the power consumption device sends an instruction to the station control system to indicate the number of batteries that the power consumption device expects to replace at the power swap station. That is to say, the power consumption device can be replaced according to the power consumption device. According to the actual needs of the electrical device, the batteries on the electrical device are replaced, instead of simply replacing all the batteries on the electrical device. This can meet the needs of the electrical device in a targeted manner, thus improving the flexibility of battery replacement. .

In a possible implementation, determining M target batteries in the power swap station according to the second instruction includes: obtaining battery parameters of the batteries in the power swap station according to the second instruction; The battery parameters of the battery determine M target batteries in the battery swap station.

In this embodiment, the station control system determines M target batteries in the battery swap station based on the battery parameters of the batteries in the battery swap station, which is beneficial to selecting batteries with better performance to improve the overall performance of the power consumption device.

In a possible implementation, M is greater than 1, and the difference in battery parameters between any two batteries among the M target batteries satisfies the first condition, so that when the M target batteries provide electric energy for the vehicle, Reach discharge equilibrium.

In this embodiment, by setting the first condition and referring to the first condition when selecting the M target batteries, the circulating current between the M target batteries when providing electric energy to the electrical device can be reduced as much as possible. , and make the M target batteries achieve discharge balance as much as possible, thereby maximizing the capacity of the battery system composed of the M target batteries.

In a possible implementation, the battery parameters include state of charge SOC, and the battery parameters of the M target batteries satisfy the first condition, including: the difference in SOC between any two batteries among the M target batteries. less than the first threshold.

In this embodiment, by setting a first threshold and selecting M target batteries whose SOC difference between any two batteries is less than the first threshold to replace N batteries on the power-consuming device, it is possible to minimize the Circulation between the selected M target batteries when providing electric energy to the electrical device, and making the M target batteries achieve discharge balance as much as possible, thereby maximizing the improvement of the M target batteries. the capacity of the battery system.

In a possible implementation, the battery parameters include voltage, and the battery parameters of the M target batteries satisfy the first condition, including: the voltage difference between any two batteries among the M target batteries is less than the second condition. threshold.

In this embodiment, by setting a second threshold and selecting M target batteries whose voltage difference between any two batteries is less than the second threshold to replace N batteries on the electrical device, it is possible to minimize the Circulation between the selected M target batteries when providing electric energy to the electrical device, and making the M target batteries achieve discharge balance as much as possible, thereby maximizing the improvement of the M target batteries. the capacity of the battery system.

In a possible implementation, K is greater than M, and the method further includes: determining (K-M) target battery filling blocks in the battery swap station, and the (K-M) target battery filling blocks and the M target batteries are used together. At the location of the K batteries installed on the vehicle, the battery filling block does not include cells.

In this embodiment, by jointly installing (K-M) target battery filling blocks and M target batteries to the positions of N replaced batteries, it is possible to avoid leaving the battery installation positions on the electrical device vacant and causing the interface to be exposed, thus It can improve the safety performance of electrical equipment.

In a possible implementation, the wireless connection is a Bluetooth connection.

In this embodiment, Bluetooth communication is used, which has low power consumption and low latency within a short distance.

In a second aspect, a method for replacing a battery is provided. The method includes: receiving a first instruction sent by the station control system through a wireless connection with the station control system in the battery swap station. The first instruction is used to indicate The electrical device meets the power swap conditions; in response to the first command, a second command is sent to the station control system through the wireless connection. The second command is used to instruct the K batteries on the power device to be replaced by the power swap station. For the M batteries in , K and M are both positive integers.

In a third aspect, a battery replacement device is provided, which is provided in a power swap station and includes: a communication unit configured to obtain status information of the battery on the power device through a wireless connection with the power device; determining The unit is used to determine whether to replace the battery at the battery swap station based on the status information of the battery.

In a fourth aspect, a device for replacing a battery is provided, which is disposed in a power consumption device and includes: a communication unit configured to receive a third message sent by the station control system through a wireless connection with the station control system in the battery swap station. An instruction, the first instruction is used to instruct the electric device to meet the power exchange conditions, and according to the first instruction, a second instruction is sent to the station control system through the wireless connection, the second instruction is used to transfer the user The K batteries on the electrical device are replaced with M batteries in the battery swap station, where K and M are both positive integers.

In the fifth aspect, a station control system is provided, which is used in a power swap station. The power swap station is used to provide power swap services for power consumption devices. The station control system includes a memory and a processor. The memory is used to store instructions, and the processor is used to read. The instruction executes the first aspect and the method in any possible implementation manner of the first aspect based on the instruction.

In a sixth aspect, an electrical device is provided, including a memory and a processor. The memory is used to store instructions. The processor is used to read instructions and execute the second aspect and any possible implementation of the second aspect based on the instructions. Methods.

Description of drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on the drawings without exerting creative efforts.

Figure 1 is a schematic diagram of an application scenario disclosed in the embodiment of the present application.

Figure 2 is a schematic block diagram of a battery replacement method disclosed in an embodiment of the present application.

Figure 3 is another schematic block diagram of a battery replacement method disclosed in an embodiment of the present application.

Figure 4 is a schematic flow chart of a battery replacement method disclosed in an embodiment of the present application.

Figure 5 is a schematic block diagram of a battery replacement device disclosed in an embodiment of the present application.

Figure 6 is another schematic block diagram of a battery replacement device disclosed in an embodiment of the present application.

Figure 7 is a schematic block diagram of the station control system disclosed in the embodiment of the present application.

Figure 8 is a schematic block diagram of an electrical device disclosed in an embodiment of the present application.

Detailed ways

The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

In the description of this application, it should be noted that, unless otherwise stated, "plurality" means more than two; the terms "upper", "lower", "left", "right", "inside", " The orientation or positional relationship indicated such as "outside" is only for the convenience of describing the present application and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. Application restrictions. Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable error range. "Parallel" is not parallel in the strict sense, but within the allowable error range.

The directional words appearing in the following description are the directions shown in the figures and do not limit the specific structure of the present application. In the description of this application, it should also be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application may be understood based on specific circumstances.

In the embodiment of the present application, the electric device may be a vehicle, but in the future, it may also be a device as small as a robot or as large as a ship or aircraft that uses batteries to provide power or power. For ease of description, the electric device will be taken as a vehicle as an example below, but those skilled in the art will understand that the technical solutions described herein are also applicable to other electric devices.

With the development of new energy technology, the application fields of batteries are becoming more and more extensive, such as powering or supplying power to vehicles. When the power of the battery in the vehicle is not enough to support the continued driving of the vehicle, charging equipment such as charging piles can be used to charge the vehicle, that is, to charge the battery in the vehicle to realize the cycle of charging and discharging the battery. However, battery charging takes a long time, which limits the vehicle's endurance.

In order to improve the battery life of vehicles, battery swapping technology came into being. Battery swapping technology adopts the method of "vehicle battery separation", which can provide battery replacement services for vehicles through battery swapping stations, that is, the battery can be quickly removed or installed from the vehicle. The battery removed from the vehicle can be placed in the battery swap cabinet of the battery swap station for charging in preparation for battery swapping for subsequent vehicles entering the battery swap station. During the entire battery swap process, the station control system in the battery swap station can only communicate with the battery through the Controller Area Network (CAN) line after the battery has been removed from the vehicle and placed in the battery swap cabinet. Find out if the battery is faulty. At this time, if the faulty battery is reinstalled on the vehicle, the efficiency of battery replacement will be greatly affected.

In view of this, embodiments of the present application provide a method for replacing batteries. Since the station control system of the battery swapping station and the electrical device are wirelessly connected, the station control system can obtain information about the electrical device before replacing the battery. The status information of the battery, and based on this, it is determined whether to replace the battery at the battery swap station, which is helpful to avoid the situation of removing the battery and then returning it, thus helping to improve the efficiency of battery swap.

Figure 1 shows a schematic diagram of an application scenario of the battery replacement method according to the embodiment of the present application. As shown in FIG. 1 , the application scenario of this battery replacement method may involve a battery replacement station 11 , a vehicle 12 and a battery.

The battery swap station 11 may refer to a place that provides battery swap services for vehicles. For example, the power swap station 11 may be a fixed place, or the power swap station 11 may be a movable place such as a mobile battery swap vehicle, which is not limited here.

The vehicle 12 may be removably connected to the battery. In some examples, the vehicle 12 may be a car, a truck, or other vehicles that use a power battery as a power source.

The battery may include a battery disposed in the vehicle 12 and a battery located in the battery swap station 11 for battery swapping. In order to facilitate distinction, as shown in FIG. 1 , the battery to be replaced in the vehicle 12 is referred to as the battery 141 , and the battery used for power swapping in the battery swap station is referred to as the battery 142 . The battery may be a lithium-ion battery, a lithium metal battery, a lead-acid battery, a nickel separator battery, a nickel-metal hydride battery, a lithium-sulfur battery, a lithium-air battery, a sodium-ion battery, etc., and is not limited here. In terms of scale, the battery can be a battery cell, a battery module or a battery pack, which is not limited here. In addition to being used as a power source to power the motor of the vehicle 12 , the battery can also power other electrical devices in the vehicle 12 . For example, the battery can also power the in-car air conditioner, car player, etc.

When the vehicle 12 equipped with the battery 141 drives into the battery swap station 11 , the battery swap station 11 removes the battery 141 from the vehicle 12 through the battery swap device, takes out the battery 142 from the battery swap station 11 , and then installs the battery 142 on the vehicle 12 . Afterwards, the vehicle 12 with the battery 142 installed can drive away from the battery swap station 11 . Through this power swap technology, the vehicle can be quickly replenished with energy within a few minutes or even tens of seconds, improving the user experience.

As shown in FIG. 1 , a power swap cabinet 13 may be provided in the power swap station 11 . The power swap cabinet 13 includes a first battery management unit 131 and a charging unit 132 . The power swap cabinet 13 may also be provided with multiple charging compartments 133 , and batteries used for power swapping may be placed in the charging compartments 133 of the power swap cabinet 13 of the power swap station 11 . The first battery management unit 131 may be a battery management unit disposed in the power swap cabinet 13. For example, the first battery management unit 131 may be called a central battery management unit (Central Battery Management Unit, CBMU). The charging unit 132 can charge the battery in the charging compartment 133 . In some examples, the charging unit may include an AC/DC module, that is, an AC/DC module and other components, devices or equipment with a charging function, which is not limited here. The charging unit 132 can be provided in one-to-one correspondence with the charging compartments 133, or multiple charging compartments 133 can share one charging unit 132, which is not limited here.

The battery may be provided with a second battery management unit 143 correspondingly. For example, the second battery management unit 143 may be called a slave battery management unit (Slave Battery Management Unit, SBMU).

The vehicle 12 is also provided with a third battery management unit 121 . The third battery management unit 121 can be used to manage multiple batteries 141 installed on the vehicle. For example, the third battery management unit 121 can be called a main battery management unit (Main Battery Management Unit, MBMU).

In some embodiments, the SBMU can be implemented using the battery management system (Battery Management System, BMS) of the corresponding battery; the MBMU can be implemented through the control module of the battery disconnect unit (Battery Disconnect Unit, BDU), or through the control module of one of the batteries. BMS to achieve.

The power swap station 11 may also be provided with a corresponding management device. The management device may have a centralized structure or a distributed structure, which is not limited here. The management device can be installed inside the power swap station 11 or outside the power swap station 11 . When the management device has a distributed structure, the management device may also be partially installed inside the power swap station 11 and partially outside the power swap station 11 . For example, as shown in FIG. 1 , the management device may include a station control system 151 within the power swap station 11 and a cloud server 152 outside the power swap station 11 , which is not limited here. The station control system 151 can also be called the battery management unit in the power swap station 11 and is used to manage and control the batteries 142 in the power swap station 11 .

Optionally, the first battery management unit 131 can communicate and interact with other units, modules, devices, etc. through wired or wireless means. The second battery management unit 143 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods. The third battery management unit 121 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods. The station control system 151 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods. Wired communication methods include, for example, a CAN communication bus. Wireless communication methods include various methods such as Bluetooth communication, WiFi communication, ZigBee communication, etc., and are not limited here.

For example, the first battery management unit 131 may communicate with the second battery management unit 143 to control charging of the battery 142 in the battery compartment 133 . For another example, the third battery management unit 121 may communicate with the second battery management unit 143 to centrally manage multiple batteries 141 on the vehicle 12 . For another example, the station control system 151 can communicate with the first battery management unit 131, the second battery management unit 143, or the third battery management unit 121 to obtain the battery 141 on the vehicle 12 or the battery 142 in the charging compartment 133. related information. For another example, the station control system 151 can also communicate with the cloud server 152 to obtain relevant information about the battery 141 on the vehicle 12 or the battery 142 in the charging compartment 133 .

FIG. 2 shows a schematic block diagram of a battery replacement method 200 according to an embodiment of the present application. It should be understood that the electric device in the method 200 can be, for example, the vehicle 12 in Figure 1 , the power swap station in the method 200 can be the power swap station 11 in Figure 1 , and the battery in the method 200 can be, for example, the vehicle 12 in Figure 1 Batteries on 141. The method 200 may be executed by the station control system 151 in the power swap station 11 shown in FIG. 1. As shown in FIG. 2, the method 200 includes part or all of the following content.

S210: Obtain status information of the battery on the electrical device through wireless connection with the electrical device.

S220: Determine whether to replace the battery at a battery replacement station based on the status information of the battery.

At this stage, in order to improve the battery life of electrical devices and reduce the number of battery replacements, a multi-battery pack solution has emerged. In other words, the power-consuming device can be equipped with multiple batteries. At a certain moment, one battery or multiple batteries can be installed on the electrical device. When the electrical device arrives at the power swap station, the station control system can establish a wireless connection with the electrical device. For example, when the electrical device arrives at the power swap station, the station control system can obtain the network address of the electrical device and actively initiate a wireless connection request to the electrical device based on the network address. After the wireless connection between the station control system and the electric device is established, the station control system can receive the status information of the battery installed on the electric device sent by the electric device through the wireless connection, and determine whether the battery is installed based on the status information of the battery. Replace the battery at a battery replacement station.

When the electrical device is equipped with multiple batteries, the station control system can obtain status information of at least one battery among the multiple batteries. As an example, the station control system can determine whether to replace the battery at the battery swap station based on the status information of the at least one battery. In other words, as long as a battery on the power-consuming device has a fault that affects battery replacement, it is determined that the battery will not be replaced at the battery swap station. In another example, the station control system may also determine whether to replace the at least one battery at the battery swap station based on the status information of the at least one battery. In other words, if the battery on the electrical device is faulty, that battery will not be replaced, and other batteries without faults can be replaced normally.

Optionally, in this embodiment of the present application, the battery status information includes battery fault information. For example, the fault information may be a fault code.

Normally, the battery management unit (for example, MBMU or SBMU) on the electrical device will detect the battery status in real time. When a battery failure is detected, the fault code table will be queried to generate a fault code (that is, fault information), and stored in In the storage unit on the electrical device. When the power-consuming device arrives at the battery swap station, the station control system can directly or indirectly obtain the fault code stored in the storage unit on the power-consuming device, and then the station control system determines whether to replace the battery based on the fault code.

Optionally, in this embodiment of the present application, the status information of the battery includes parameter information of the battery, and the parameter information includes at least one of power, voltage and temperature; it is determined whether to replace the battery according to the status information of the battery. The power station's replacement of the battery includes: determining the fault information of the battery based on the parameter information of the battery; determining whether to replace the battery in the battery swap station based on the fault information of the battery.

Specifically, the battery management unit (SBMU) in the battery monitors various parameter information of the battery in real time, such as at least one of power, voltage and temperature. When the electric device arrives at the battery swap station, the station control system can obtain the battery parameter information through the battery management unit (MBMU) on the electric device. The station control system can determine the battery fault information based on the obtained battery parameter information ( For example, fault code); then the station control system determines whether to replace the battery based on the current fault of each battery.

In this embodiment, the fault of the battery is determined by the station control system rather than by the battery management unit on the electrical device. Therefore, the station control system does not need to read the fault information obtained by the battery management unit on the electrical device, thus reducing the signaling overhead of the station control system.

Optionally, in the embodiment of the present application, determining whether to replace the battery in the battery swap station based on the fault existing in the battery includes: when the fault indicated by the fault information of the battery is within the preset fault level range In this case, determine to replace the battery at the battery swap station.

When it comes to batteries, failures can be big or small. Some faults may affect battery replacement, while other faults may not affect battery replacement. As long as the station control system determines that one of the multiple batteries on the electrical device has a fault that affects battery replacement, it will determine not to replace the battery. On the contrary, if the station control system determines that the faults in the multiple batteries on the electrical device do not affect battery replacement, the station control system determines to replace the batteries. Specifically, common battery faults can be classified according to their severity. For example, a first-level fault can be considered as a fault that does not affect power exchange, and a second-level fault can be considered as a fault that affects power exchange. In this example, as long as the fault in the battery is a first-level fault, the station control system determines to replace the battery. For another example, a first-level fault can be considered a fault that does not affect power replacement, a second-level fault can be considered a fault that affects power replacement but can be eliminated through software, and a third-level fault can be considered a fault that requires repair. In this example , as long as the battery fault is below level three, the station control system will determine to replace the battery. Optionally, the preset fault level range may be defined in advance and stored in the station control system.

Optionally, in this embodiment of the present application, the method further includes: when it is determined that the battery is to be replaced at the battery swap station, sending a first instruction to the power-consuming device through the wireless connection, the first instruction being used to indicate The power-consuming device satisfies the power exchange conditions; and the second command sent by the power-consuming device in response to the first command is received through the wireless connection, and the second command is used to replace the K batteries on the power-consuming device with M batteries in the power swap station, M is a positive integer; according to the second instruction, M target batteries are determined in the power swap station, and the M target batteries are used to replace the K batteries to provide power for the electrical device. .

Specifically, after the electric device receives the first instruction sent by the station control system through the wireless connection, the electric device can respond to the first instruction and send the second instruction to the station control system. That is to say, the first command triggers the electrical device to send the second command to the station control system. Optionally, the second instruction may be automatically generated by the electrical device. For example, after receiving the first instruction, the power-consuming device can replace the K batteries on the power-consuming device with K batteries in the power swap station by default. Optionally, the second instruction may also be generated by the electrical device based on the user's input operation. For example, after receiving the first instruction, the power-consuming device can display several battery replacement modes to the user through an output device (for example, a display screen) on the power-consuming device, that is, replace K batteries on the power-consuming device. To replace several batteries in the power station. In other words, the second instruction is used to indicate the number of batteries that the electrical device expects to be replaced at the battery swap station.

It should be understood that K and M may be equal or different. In other words, K can be greater than M, K can also be less than M, and K can also be equal to M. For example, the second instruction may instruct to replace 2 batteries on the electrical device with 2 batteries in the battery swap station. For another example, the second instruction may instruct to replace two batteries on the electrical device with one battery in the battery swap station. For another example, the second instruction may instruct to replace 2 batteries on the power-consuming device with 3 batteries in the battery swap station.

Optionally, in this embodiment of the present application, determining M target batteries in the power swap station according to the second instruction includes: obtaining battery parameters of the batteries in the power swap station according to the second instruction; The battery parameters of the batteries in the power station, and M target batteries are determined in the battery swap station.

Specifically, after obtaining the second instruction, the station control system can obtain the battery parameters of the battery in the battery swap station. Specifically, the station control system can obtain the battery parameters of all batteries currently in the battery swap station, and can also obtain the battery parameters of some batteries in the battery swap station. For example, if the battery swap station is a dual-channel, that is to say, both sides of the battery swap position are With a charging compartment, the station control system can select a channel and obtain the battery parameters of all batteries in a channel. The battery parameters of the battery may include, but are not limited to, at least one of the following: state of charge (SOC), voltage, or state of health (SOH). After obtaining the battery parameters of the batteries in the battery swap station, the station control system determines M target batteries in the battery swap station. For example, the station control system can determine M target batteries in the battery swap station based on the SOC size of the battery. For another example, the station control system can determine M target batteries in the battery swap station based on the voltage of the batteries.

Optionally, the battery parameters of the M target batteries obtained by the station control system in the power swap station can meet the first condition, so that the M target batteries can meet the discharge requirements when providing electric energy to the electrical devices. It should be noted that the discharge requirement may refer to various aspects of battery performance. For example, the first condition may mean that the SOCs of the M target batteries are all greater than the preset minimum SOC that allows battery replacement, then the M target batteries can meet the discharge duration for a certain period of time when providing power to the electrical device. .

Optionally, in this embodiment of the present application, M is greater than 1, and the battery parameters of the M target batteries meet the first condition, so that when the M target batteries provide electric energy to the electrical device, discharge balance can be achieved.

Optionally, in this embodiment of the present application, the battery parameters include state of charge SOC, and the battery parameters of the M target batteries satisfy the first condition, including: the SOC between any two batteries among the M target batteries. The difference is less than the first threshold.

The first threshold can be obtained based on experience. For example, under the same conditions, the circulating current value of two batteries of the same model when connected in parallel under multiple sets of SOC differences can be detected, and the SOC difference value when the circulating current value is less than or equal to the battery's maximum withstand current can be determined as the first threshold. That is to say, the first threshold is when the circulating current value of two batteries connected in parallel is less than or equal to the SOC difference between the two batteries under the maximum endurance capacity of the battery. Optionally, the first threshold may be less than or equal to 2%. Specifically, the first threshold may be 2%. It should be understood that the first threshold can also be other values, such as 3%, 1% or 0. From the perspective of battery performance, the first threshold should be as small as possible. However, due to differences in charging conditions for batteries in different charging bins, if the first threshold is small, it may not be possible to match M cells that meet the first condition. target battery. Therefore, when setting the first threshold, two factors, battery performance and the number of batteries that meet the first condition, should be considered in a balanced manner.

Optionally, in this embodiment of the present application, the battery parameters include voltage, and the battery parameters of the M target batteries satisfy the first condition, including: the voltage difference between any two batteries in the M target batteries is less than Second threshold.

The second threshold can be obtained empirically. For example, under the same conditions, the circulating current value of two batteries of the same model when connected in parallel under multiple sets of voltage differences can be detected, and the voltage difference value when the circulating current value is less than or equal to the battery's maximum withstand current can be determined as the second threshold. That is to say, the second threshold is when the circulating current value of two batteries connected in parallel is less than or equal to the voltage difference between the two batteries under the maximum endurance capacity of the battery. Optionally, the second threshold may be less than or equal to 5V. Specifically, the second threshold may be 5V. It should be understood that the second threshold can also be other values, such as 6V, 4V, 3V, 2V, 1V or 0V. In terms of battery performance, the second threshold should be as small as possible. However, due to differences in charging conditions for batteries in different charging bins, if the second threshold is small, it may not be possible to match M cells that meet the first condition. target battery. Therefore, when setting the second threshold, two factors, battery performance and the number of batteries that meet the first condition, should be considered in a balanced manner.

Optionally, the battery parameters include SOC and voltage, and the battery parameters of the M target batteries satisfy the first condition, including: the difference in SOC between any two batteries among the M target batteries is less than the first threshold, and , the voltage difference between any two batteries among the M target batteries is less than the second threshold.

In other embodiments, M target batteries that meet the first condition may also be determined based on other battery parameters besides SOC and voltage, which is not limited in the embodiments of the present application.

Optionally, in the embodiment of the present application, determining M target batteries in the power swap station according to the second instruction includes: obtaining the waiting time of the batteries in the power swap station according to the second instruction; Waiting time, determine M target batteries in the battery swap station.

Specifically, after obtaining the battery swap command, the station control system can obtain the waiting time of all batteries currently in the battery swap station, or the waiting time of some batteries in the battery swap station. For example, if the battery swap station is dual-channel, that is, , there are charging compartments on both sides of the battery replacement position. The station control system can select a channel and obtain the waiting time of all batteries in a channel. The waiting time of the battery may include but is not limited to the waiting time after the battery enters the battery compartment of the battery swap station and the waiting time after the battery is fully charged in the battery compartment. After obtaining the waiting time of the batteries in the battery swap station, the station control system can determine M target batteries in the battery swap station.

In this embodiment, M target batteries are determined in the battery swap station according to the waiting time of the batteries in the battery swap station, which is beneficial to the balanced use of each charging bin, thereby improving the life of the charging bin.

Optionally, the station control system can sort the waiting times of all or part of the batteries in the battery swap station from long to short, and based on the sorting, determine M target batteries therefrom. For example, the station control system can determine the M batteries with the longest waiting time in the sorting as the M target batteries.

Optionally, the station control system can also sort the distances from all or part of the batteries in the battery swap station to the battery swap position from large to small, and determine the M target batteries therefrom according to the sorting. For example, the station control system can determine the M batteries with the smallest distance in the sorting as the M target batteries.

In other embodiments, the station control system can also determine the M target batteries by combining the information involved in the various embodiments mentioned above. For example, the M target batteries can be determined in the battery swap station based on the battery parameters of the battery in the battery swap station, the waiting time of the battery, and the distance from the battery to the battery swap location.

Optionally, in the embodiment of the present application, K is greater than M, and the method further includes: determining (K-M) target battery filling blocks, the (K-M) target battery filling blocks and the M target batteries in the battery swap station Commonly used for the position of the K batteries installed on the electrical device, the battery filling block does not include battery cells.

Specifically, when K is greater than M, M target batteries cannot fill the installation positions of K batteries. That is to say, when M target batteries are installed on the electrical device, (K-M) installation positions will be vacant. At this time, the (K-M) installation positions can be filled with battery filling blocks. In the embodiment of this application, a battery refers to a battery that can provide electric energy to an electrical device, that is to say, the battery includes a battery core. In layman's terms, a battery is a "real" battery. For example, the batteries in the embodiment of the present application may be the battery 141 and the battery 142 in FIG. 1 . The battery filling block has the same shell as the battery, but does not include the battery core. That is, the battery filling block can also be installed on the electrical device and has a shielding function, that is, it can block the high-voltage interface on the electrical device, but the battery filling block Blocks cannot provide electrical energy to electrical devices. Colloquially, battery filler blocks can be called "fake" batteries. Battery filler blocks can also be placed in battery swap stations. For example, the charging compartment in a battery swap station can be divided into two parts. One part is a charging compartment for placing batteries, which can be used to charge the battery, and the other part is a charging compartment for placing battery filling blocks, which are not used for charging the battery filling blocks. Charge. Optionally, the compartment for placing the battery filling block may not have a charging function, but may only serve as an accommodation function.

Optionally, the battery filling block may not include a battery management system (battery management system, BMS).

In this embodiment, by jointly installing (K-M) target battery filling blocks and M target batteries to the positions of N replaced batteries, it can be avoided that the high-voltage interface is exposed to the outside due to the empty installation position of the battery on the electrical device. This can improve the safety performance of electrical devices.

It should be understood that the embodiments of the present application do not limit the rules used to determine battery filling blocks. For example, the station control system can determine the (K-M) target battery filling blocks based on the waiting time of the battery filling blocks in the battery swap station. The station control system can also determine (K-M) target battery filling blocks based on the placement positions of the battery filling blocks in the battery swap station. For another example, the station control system can also randomly determine (K-M) target battery filling blocks in the battery swap station.

Optionally, in this embodiment of the present application, the wireless connection is a Bluetooth connection.

Specifically, when the electric device arrives at the power swap station, Bluetooth can be turned on. After the station control system discovers the electric device through scanning, it can initiate a Bluetooth connection request, which can also be called a pairing request, to the electric device. The electric device receives the Bluetooth connection request initiated by the station control system, and establishes a Bluetooth connection with the station control system.

Optionally, in other embodiments, the wireless communication may also be WiFi communication, ZigBee communication, etc.

FIG. 3 shows another schematic block diagram of a battery replacement method 300 according to an embodiment of the present application. As shown in FIG. 4 , the method 300 may be executed by a power-consuming device, for example, may be executed by the third battery management unit 121 as shown in FIG. 1 . Specifically, as shown in Figure 3, the method 300 includes part or all of the following content.

S310: Receive the first command sent by the station control system through the wireless connection with the station control system in the power swap station. The first command is used to instruct the power device to meet the power swap conditions;

S320. In response to the first instruction, send a second instruction to the station control system through the wireless connection. The second instruction is used to replace the K batteries on the power device with M batteries in the battery swap station. K and M are both positive integers.

It should be understood that for the embodiments on the power-consuming device side, reference can be made to the description on the station control system side, and for the sake of brevity, they will not be described again here.

The schematic flow chart of the battery replacement method 400 according to the embodiment of the present application will be described in detail below with reference to FIG. 4 . As shown in Figure 4, the method 400 involves various interactions between the cloud server, the station control system, CBMU, MBMU and SBMU. Specifically, the method 400 includes part or all of the following content.

S401. The SBMU obtains battery status information. Optionally, the status information includes parameter information and/or fault information. The battery parameter information may be, for example, battery power, battery voltage, and battery temperature.

S402: MBMU receives the battery status information sent by SBMU.

S403, when the vehicle arrives at the battery swap station, the station control system can obtain the vehicle's license plate information.

Optionally, the station control system can scan the vehicle's license plate information through the camera in the battery swap station.

S404, the station control system can send the vehicle's license plate information to the cloud server to search for MAC address information matching the vehicle's license plate information on the cloud server.

S405, the cloud server can send the queried MAC address information of the vehicle to the station control system.

S406, the station control system can initiate a Bluetooth connection request to the MBMU on the vehicle based on the MAC address information sent by the cloud server.

S407: After a Bluetooth connection is established between the station control system and the MBMU, the MBMU can send battery status information to the station control system through the Bluetooth connection.

S408: The station control system can determine whether to replace the battery based on the status information of the battery.

S409: When the station control system determines to replace the battery, it sends a first instruction to the MBMU. The first instruction is used to instruct the vehicle to meet the battery replacement conditions.

S410: After receiving the first instruction, the MBMU sends a second instruction to the station control system. The second instruction is used to instruct the K batteries on the vehicle to be replaced with M batteries in the battery swap station.

S411. After receiving the second instruction, the station control system obtains the battery parameters of the battery in the battery swap station. Optionally, the station control system can obtain the battery parameters of the battery in the battery swap station through wireless interaction with the CBMU in the battery swap station.

S412: The station control system determines M target batteries based on the battery parameters of the batteries in the battery swap station.

It should be understood that in the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation.

The method for replacing the battery according to the embodiment of the present application has been described in detail above. The device for replacing the battery according to the embodiment of the present application will be described in detail below with reference to FIGS. 5 and 8 . The technical features described in the method embodiments are applicable to the following device embodiments.

FIG. 5 shows a schematic block diagram of a battery replacement device 500 according to an embodiment of the present application. As shown in Figure 5, the device 500 is installed in a power swap station, and the device 500 includes part or all of the following content.

The communication unit 510 is configured to obtain status information of the battery on the electrical device through a wireless connection with the electrical device;

The determining unit 520 is configured to determine whether to replace the battery at the battery swap station based on the status information of the battery.

Optionally, in this embodiment of the present application, the battery status information includes battery fault information.

Optionally, in this embodiment of the present application, the status information of the battery includes parameter information of the battery, and the parameter information includes at least one of power, voltage and temperature. The determination unit 520 is specifically configured to: according to the parameters of the battery information to determine the fault information of the battery; based on the fault information of the battery, determine whether to replace the battery in the battery swap station.

Optionally, in this embodiment of the present application, the determination unit 520 is specifically configured to: determine to replace the battery at the battery swap station when the faults indicated by the fault information of the battery are all within a preset fault level range.

Optionally, in this embodiment of the present application, the communication unit 510 is also configured to: when it is determined that the battery is to be replaced at the battery swap station, send a first instruction to the power-consuming device through the wireless connection. The first instruction Used to instruct the electric device to meet the battery replacement conditions; receive a second instruction sent by the electric device in response to the first instruction through the wireless connection, and the second instruction is used to replace the K batteries on the electric device. is the M batteries in the power swap station, M is a positive integer; the determination unit 520 is specifically used to: according to the second instruction, determine M target batteries in the power swap station, and the M target batteries are used to replace the K A battery provides electrical energy to the electrical device.

Optionally, in this embodiment of the present application, the determination unit 520 is specifically configured to: obtain the battery parameters of the battery in the battery swap station according to the second instruction; and obtain the battery parameters of the battery in the battery swap station according to the battery parameters in the battery swap station. Determine M target batteries.

Optionally, in the embodiment of the present application, M is greater than 1, and the difference in battery parameters between any two batteries among the M target batteries meets the first condition, such that when the M target batteries provide electric energy for the vehicle , can achieve discharge equilibrium.

Optionally, in the embodiment of the present application, K is greater than M, and the determination unit 520 is also used to: determine (K-M) target battery filling blocks, the (K-M) target battery filling blocks and the M The target batteries are jointly used for the positions of the K batteries installed on the vehicle, and the battery filling block does not include battery cells.

It should be understood that the device 500 according to the embodiment of the present application may correspond to the station control system in the method embodiment of the present application, and the above and other operations and/or functions of each module in the device 500 are in order to realize each of Figures 2 and 4 The corresponding process of the station control system in the method will not be repeated here for the sake of simplicity.

FIG. 6 shows a schematic block diagram of a battery replacement device 600 according to an embodiment of the present application. As shown in Figure 6, the device 600 is installed in an electrical device and includes some or all of the following contents.

The communication unit 610 is configured to receive a first instruction sent by the station control system through a wireless connection with the station control system in the power swap station. The first instruction is used to instruct the power device to meet the power swap conditions, and in response to The first command sends a second command to the station control system through the wireless connection. The second command is used to replace the K batteries on the power device with M batteries in the battery swap station. K and M are both is a positive integer.

It should be understood that the device 600 according to the embodiment of the present application may correspond to the electrical device in the method embodiment of the present application, and the above and other operations and/or functions of each module in the device 600 are to realize each of FIGS. 3 and 4 The corresponding process of the electrical device in the method will not be repeated here for the sake of simplicity.

Figure 7 shows a schematic block diagram of the station control system 700 according to the embodiment of the present application. The station control system is used in power swap stations, which are used to provide power swap services for power consuming devices. As shown in Figure 7, the station control system 700 includes a processor 710 and a memory 720, where the memory 720 is used to store instructions, and the processor 710 is used to read instructions and execute the aforementioned corresponding tasks in various embodiments of the present application based on the instructions. Station control system method.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

Optionally, as shown in Figure 7, the station control system 700 can also include a transceiver 730, and the processor 710 can control the transceiver 730 to communicate with other devices. Specifically, you can send information or data to other devices, or receive information or data sent by other devices.

Figure 8 shows a schematic block diagram of the station control system 800 according to the embodiment of the present application. The station control system is used in power swap stations, which are used to provide power swap services for power consuming devices. As shown in Figure 8, the station control system 800 includes a processor 810 and a memory 820, where the memory 820 is used to store instructions, and the processor 810 is used to read instructions and execute the aforementioned corresponding tasks in various embodiments of the present application based on the instructions. Station control system method.

The memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .

Optionally, as shown in Figure 8, the station control system 800 can also include a transceiver 830, and the processor 810 can control the transceiver 830 to communicate with other devices. Specifically, you can send information or data to other devices, or receive information or data sent by other devices.

Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the station control system or the electrical device in the embodiment of the present application, and the computer program causes the computer to perform the various methods in the embodiment of the present application by the station control system or the electrical device. The corresponding process of implementation will not be repeated here for the sake of brevity.

An embodiment of the present application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the station control system or the electrical device in the embodiment of the present application, and the computer program instructions cause the computer to execute the various methods implemented by the station control system or the electrical device in the embodiment of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

An embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the station control system or electrical device in the embodiment of the present application. When the computer program is run on the computer, the computer is caused to perform the various methods in the embodiment of the present application by the station control system or For the sake of simplicity, the corresponding process implemented by the electrical device will not be described again here.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

A method for replacing a battery, characterized by including:

Obtain status information of the battery on the electrical device through a wireless connection with the electrical device;

Determine whether to replace the battery based on the status information of the battery.
The method of claim 1, wherein the battery status information includes fault information of the battery.
The method according to claim 1, wherein the status information of the battery includes parameter information of the battery, and the parameter information includes at least one of power, voltage and temperature, and the battery status information is Status information to determine whether to replace the battery at the battery swap station, including:

Determine the fault information of the battery according to the parameter information of the battery;

Determine whether to replace the battery based on the fault information.
The method according to claim 2 or 3, wherein determining whether to replace the battery according to the fault information includes:

When the fault indicated by the fault information of the battery is within the preset fault level range, it is determined to replace the battery at the battery swap station.
The method according to any one of claims 1 to 4, characterized in that the method further includes:

When it is determined to replace the battery, send a first instruction to the electric device through the wireless connection, where the first instruction is used to instruct the electric device to meet the battery replacement conditions;

The second instruction sent by the electric device in response to the first instruction is received through the wireless connection. The second instruction is used to instruct to replace the K batteries on the electric device with those in the battery swap station. M batteries, K and M are both positive integers;

According to the second instruction, M target batteries are determined in the power swap station, and the M target batteries are used to replace the K batteries to provide electric energy for the electrical device.
The method of claim 5, wherein determining M target batteries in the battery swap station according to the second instruction includes:

According to the second instruction, obtain the battery parameters of the battery in the battery swap station;

According to the battery parameters of the batteries in the battery swap station, M target batteries are determined in the battery swap station.
The method of claim 6, wherein M is greater than 1, and the difference in battery parameters between any two of the M target batteries satisfies the first condition, such that the M target batteries are the When the vehicle provides electric energy, the discharge balance can be achieved.
The method according to claim 7, wherein the battery parameters include state of charge SOC, and the battery parameters of the M target batteries satisfy the first condition, including: any two of the M target batteries. The difference in SOC between cells is less than the first threshold.
The method according to claim 7 or 8, characterized in that the battery parameters include voltage, and the battery parameters of the M target batteries satisfy the first condition, including: any two batteries among the M target batteries. The voltage difference between them is less than the second threshold.
The method according to any one of claims 5 to 8, characterized in that K is greater than M, and the method further includes:

Determine (K-M) target battery filling blocks in the battery swap station, and the (K-M) target battery filling blocks and the M target batteries are jointly used to position the K batteries installed on the vehicle. , the battery filling block does not include battery cells.
The method according to any one of claims 1 to 10, characterized in that the wireless connection is a Bluetooth connection.
A method for replacing a battery, characterized by including:

Receive the first instruction sent by the station control system through the wireless connection with the station control system in the power swap station, where the first instruction is used to instruct the power device to meet the power swap conditions;

In response to the first instruction, a second instruction is sent to the station control system through the wireless connection. The second instruction is used to replace the K batteries on the power device with batteries in the battery swap station. There are M batteries, K and M are both positive integers.
The method of claim 12, wherein the wireless connection is a Bluetooth connection.
A device for replacing batteries, which is characterized in that it is installed in a battery replacement station and includes:

A communication unit, configured to obtain status information of the battery on the electrical device through a wireless connection with the electrical device;

A determining unit configured to determine whether to replace the battery at the battery swap station based on the status information of the battery.
The device according to claim 14, wherein the battery status information includes fault information of the battery.
The device according to claim 14, wherein the status information of the battery includes parameter information of the battery, the parameter information includes at least one of power, voltage and temperature, and the determining unit is specifically configured to :

Determine the fault information of the battery according to the parameter information of the battery;

According to the fault information of the battery, it is determined whether to replace the battery in the battery swap station.
The device according to claim 15 or 16, characterized in that the determining unit is specifically used to:

When the faults indicated by the fault information of the battery are all within the preset fault level range, it is determined to replace the battery at the battery swap station.
The device according to any one of claims 14 to 17, characterized in that the communication unit is also used for:

When it is determined that the battery is to be replaced at the power swap station, sending a first instruction to the power device through the wireless connection, where the first command is used to instruct the power device to meet the power swap conditions;

The second instruction sent by the electric device in response to the first instruction is received through the wireless connection. The second instruction is used to instruct to replace the K batteries on the electric device with those in the battery swap station. M batteries, K and M are both positive integers;

The determination unit is specifically used for:

According to the second instruction, M target batteries are determined in the power swap station, and the M target batteries are used to replace the K batteries to provide electric energy for the electrical device.
The device according to claim 18, characterized in that the determining unit is specifically configured to:

According to the second instruction, obtain the battery parameters of the battery in the battery swap station;

According to the battery parameters of the batteries in the battery swap station, M target batteries are determined in the battery swap station.
The device according to claim 19, characterized in that M is greater than 1, and the difference in battery parameters between any two batteries among the M target batteries satisfies the first condition, such that the M target batteries are the When the vehicle provides electric energy, the discharge balance can be achieved.
The device according to claim 20, wherein the battery parameters include a state of charge (SOC), and the battery parameters of the M target batteries satisfy the first condition, including: any two of the M target batteries. The difference in SOC between cells is less than the first threshold.
The device according to claim 20 or 21, characterized in that the battery parameters include voltage, and the battery parameters of the M target batteries satisfy the first condition, including: any two batteries among the M target batteries. The voltage difference between them is less than the second threshold.
The device according to any one of claims 19 to 22, characterized in that K is greater than M, and the determining unit is also used to:

Determine (K-M) target battery filling blocks in the battery swap station, and the (K-M) target battery filling blocks and the M target batteries are jointly used to position the K batteries installed on the vehicle. , the battery filling block does not include battery cells.
The device according to any one of claims 14 to 23, characterized in that the wireless connection is a Bluetooth connection.
A device for replacing batteries, which is characterized in that it is installed in an electrical device and includes:

a communication unit, configured to receive a first instruction sent by the station control system through a wireless connection with the station control system in the power swap station, where the first instruction is used to instruct the power device to meet the power swap conditions, and

In response to the first instruction, a second instruction is sent to the station control system through the wireless connection. The second instruction is used to replace the K batteries on the power device with batteries in the battery swap station. There are M batteries, K and M are both positive integers.
The device of claim 25, wherein the wireless connection is a Bluetooth connection.
A station control system, which is characterized in that it is used in a power swap station, and the power swap station is used to provide power swap services for electrical devices. The station control system includes a memory and a processor, and the memory is used to store instructions. The processor is configured to read the instructions and execute the method according to any one of claims 1 to 11 based on the instructions.
An electrical device, characterized in that it includes a memory and a processor, the memory is used to store instructions, and the processor is used to read the instructions and execute the method according to claim 12 or 13 based on the instructions. .