Battery replacement system, battery replacement control method, battery replacement station and battery replacement control device

Abstract

The invention relates to the technical field of batteries, and discloses a battery replacement system, a battery replacement control method, a battery replacement station and a battery replacement control device.The method comprises the steps that a battery management system obtains electric quantity data and temperature data of a battery cell; judging whether the electric quantity data is smaller than a preset electric quantity threshold and whether the temperature data is larger than a first preset temperature threshold; setting a target electric quantity threshold in response to the fact that the electric quantity data is smaller than a preset electric quantity threshold, and generating a charging instruction according to the target electric quantity threshold; in response to the fact that the temperature data is larger than a first preset temperature threshold value, setting a target temperature threshold value, and generating a liquid cooling instruction according to the target temperature threshold value; the charging instruction and the liquid cooling instruction are sent to a station control end through the battery rack; the station control end obtains a charging instruction and a liquid cooling instruction sent by the battery management system, and controls and starts a charging unit to supply power to a battery according to the charging instruction; and controlling and starting the liquid cooling unit to cool the battery according to the liquid cooling instruction. The method can improve the charging efficiency and prolong the service life of the battery.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a battery replacement system, a battery replacement control method, a battery replacement station and a battery replacement control device. Background Art

[0002] At present, light trucks on the market are not equipped with liquid cooling devices, and are equipped with battery packs that do not have liquid cooling capabilities. The battery packs take a long time to charge, and the waiting time for charging is long, which has a great impact on the transportation efficiency of express delivery and fresh food e-commerce industries, and reduces battery life. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to propose a battery swap system that can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery swap service capacity of the battery swap station.

[0004] The second objective of the present invention is to provide a battery replacement control method.

[0005] The third objective of the present invention is to provide a battery swap station.

[0006] The fourth objective of the present invention is to provide a battery replacement control device.

[0007] To achieve the above-mentioned objectives, a first embodiment of the present invention proposes a battery exchange system, including a battery exchange station and a battery with a liquid cooling function, wherein the battery is arranged on a battery rack and connected to the battery rack, and the battery includes: a battery cell, which is connected to a charging unit through a battery rack; a battery liquid cooling channel, which is arranged on the periphery of the battery cell and connected to the liquid cooling unit through a transit liquid cooling channel; a temperature sensor, which is arranged on the battery cell and is used to obtain temperature data of the battery cell; a battery management system, which is connected to the battery cell and the temperature sensor, and is used to obtain power data of the battery cell and temperature data of the battery cell, and generates a charging instruction according to the power data, and generates a liquid cooling instruction according to the temperature data, and sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack, so that the station control end controls the charging unit to power the battery according to the charging instruction, and controls the liquid cooling unit to cool the battery according to the liquid cooling instruction.

[0008] The battery swap system according to the embodiment of the present invention includes a battery swap station and a battery with a liquid cooling function. The battery is arranged on a battery rack and connected to the battery rack. The battery includes: a battery cell, which is connected to a charging unit through a battery rack; a battery liquid cooling channel, which is arranged on the periphery of the battery cell and connected to a liquid cooling unit through a transit liquid cooling channel; a temperature sensor, which is arranged on the battery cell and is used to obtain the temperature data of the battery cell; a battery management system, which is connected to the battery cell and the temperature sensor, and is used to obtain the power data of the battery cell and the temperature data of the battery cell, and generates a charging instruction according to the power data, generates a liquid cooling instruction according to the temperature data, and sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack, so that the station control end controls the charging unit to supply power to the battery according to the charging instruction, and controls the liquid cooling unit to cool the battery according to the liquid cooling instruction. As a result, the system can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery swap service capability of the battery swap station.

[0009] The second purpose of the present invention is to propose a battery replacement control method, which can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capability of the battery replacement station.

[0010] To achieve the above-mentioned purpose, the second aspect of the embodiment of the present invention proposes a battery replacement control method, which is applied to the above-mentioned battery replacement system, and the above-mentioned method includes: the battery management system obtains the power data and temperature data of the battery cell; determines whether the power data is less than the preset power threshold and whether the temperature data is greater than the first preset temperature threshold; in response to the power data being less than the preset power threshold, sets the target power threshold, and generates a charging instruction based on the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, sets the target temperature threshold, and generates a liquid cooling instruction based on the target temperature threshold; sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end obtains the charging instruction and the liquid cooling instruction sent by the battery management system, and controls the charging unit to be turned on to power the battery according to the charging instruction; controls the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

[0011] In addition, the battery replacement control method according to the above embodiment of the present invention may also have the following additional technical features:

[0012] According to some embodiments of the present invention, the above method also includes: the battery management system generates a stop charging instruction in response to the power data reaching a preset power threshold; generates a stop liquid cooling instruction in response to the temperature data being less than a second preset temperature threshold; sends the stop charging instruction and the stop liquid cooling instruction to the station control end through the battery rack; the station control end obtains the stop charging instruction sent by the battery management system, and controls the shutdown of the charging unit; the station control end obtains the stop liquid cooling instruction sent by the battery management system, and controls the shutdown of the liquid cooling unit.

[0013] According to some embodiments of the present invention, the above method also includes: the station control end obtains the real-time temperature of the coolant in the liquid cooling unit obtained by the thermal cycle management module, and determines whether the real-time temperature is within a preset temperature range. In response to the real-time temperature not being within the preset temperature range, the temperature of the coolant in the liquid cooling unit is adjusted according to the preset temperature range.

[0014] According to some embodiments of the present invention, the station control terminal preferentially executes the liquid cooling instruction.

[0015] According to the battery replacement control method of the embodiment of the present invention, the battery management system obtains the power data and temperature data of the battery cell; determines whether the power data is less than the preset power threshold, and whether the temperature data is greater than the first preset temperature threshold; in response to the power data being less than the preset power threshold, sets the target power threshold, and generates a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, sets the target temperature threshold, and generates a liquid cooling instruction according to the target temperature threshold; sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end obtains the charging instruction and the liquid cooling instruction sent by the battery management system, and controls the start of the charging unit to supply power to the battery according to the charging instruction; controls the start of the liquid cooling unit to cool the battery according to the liquid cooling instruction. Therefore, the method can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capability of the battery replacement station.

[0016] The third object of the present invention is to propose a battery swap station that can reduce battery temperature during battery charging, improve battery charging efficiency, reduce charging waiting time, increase battery life, and enhance the battery swap service capabilities of the battery swap station.

[0017] To achieve the above-mentioned purpose, the third aspect of the present invention proposes a battery swap station, comprising: a battery rack, which is used to be connected to a battery; a charging unit, which is connected to the battery rack and is used to power the battery through the battery rack; a liquid cooling unit, which is connected to the battery rack and is used to cool the battery through the battery rack; a station control terminal, which is connected to the charging unit and the liquid cooling unit, and is used to obtain charging instructions and liquid cooling instructions through the battery rack and the charging unit, control the charging unit to power the battery according to the charging instructions, and control the liquid cooling unit to cool the battery according to the liquid cooling instructions.

[0018] In addition, the battery swap station according to the above embodiment of the present invention may also have the following additional technical features:

[0019] According to some embodiments of the present invention, the battery rack is provided with at least one charging area, the charging area is connected to the charging unit, and the charging area is matched with the battery to supply power to the battery.

[0020] According to some embodiments of the present invention, a battery rack is provided with at least one transit liquid cooling channel, one end of the transit liquid cooling channel is connected to a battery liquid cooling channel of a battery, and the other end of the transit liquid cooling channel is connected to a liquid cooling unit, and the transit liquid cooling channel is used to conduct the coolant in the liquid cooling unit to the battery liquid cooling channel of the battery to cool the battery.

[0021] According to some embodiments of the present invention, the above-mentioned battery swap station also includes a heat cycle management module, which is connected to the liquid cooling unit and the station control end, and is used to obtain the real-time temperature of the coolant in the liquid cooling unit and adjust the temperature of the coolant in the liquid cooling unit.

[0022] The battery swap station according to the embodiment of the present invention includes: a battery rack, the battery rack is used to connect to the battery; a charging unit is connected to the battery rack and is used to power the battery through the battery rack; a liquid cooling unit is connected to the battery rack and is used to cool the battery through the battery rack; a station control terminal is connected to the charging unit and the liquid cooling unit, and is used to obtain charging instructions and liquid cooling instructions through the battery rack and the charging unit, and control the charging unit to power the battery according to the charging instructions, and control the liquid cooling unit to cool the battery according to the liquid cooling instructions. As a result, the battery swap station can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery swap service capabilities of the battery swap station.

[0023] The fourth purpose of the present invention is to propose a battery replacement control device that can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capabilities of the battery replacement station.

[0024] To achieve the above-mentioned objectives, the fourth aspect of the present invention proposes a battery replacement control device, including: a battery management system, configured to obtain power data and temperature data of a battery cell; determine whether the power data is less than a preset power threshold, and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, set a target power threshold, and generate a charging instruction based on the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, set a target temperature threshold, and generate a liquid cooling instruction based on the target temperature threshold; send the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end is configured to obtain the charging instruction and the liquid cooling instruction sent by the battery management system, and control the charging unit to be turned on to power the battery according to the charging instruction; and control the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

[0025] According to an embodiment of the present invention, the battery exchange control device includes: a battery management system, which is configured to obtain the power data and temperature data of the battery cell; determine whether the power data is less than a preset power threshold, and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, set a target power threshold, and generate a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, set a target temperature threshold, and generate a liquid cooling instruction according to the target temperature threshold; send the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end is configured to obtain the charging instruction and the liquid cooling instruction sent by the battery management system, control the start of the charging unit to supply power to the battery according to the charging instruction; control the start of the liquid cooling unit to cool the battery according to the liquid cooling instruction. As a result, the device can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery exchange service capability of the battery exchange station.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of a battery replacement system according to some embodiments of the present invention;

[0028] Figure 2 is a flow chart of a battery replacement control method according to some embodiments of the present invention;

[0029] Figure 3 is a flow chart of a battery replacement control method according to some other embodiments of the present invention;

[0030] Figure 4 is a schematic diagram of a battery swap station according to some embodiments of the present invention;

[0031] Figure 5 is a block diagram of a control device according to some embodiments of the present invention.

[0032] Description of Reference Numerals

[0033] 20-battery rack, 30-charging unit, 40-liquid cooling unit, 10-station control terminal, 50-thermal cycle management module, 60-battery, 100-battery swap station, 200-battery swap system. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] As mentioned in the background technology section, currently, light truck models on the market are not equipped with liquid cooling devices, and light truck models are equipped with battery packs that do not have liquid cooling capabilities.

[0037] In the process of implementing the present invention, the applicant discovered that the battery pack has a long charging time and a long charging waiting time, which has a great impact on the transportation efficiency of the express delivery and fresh food e-commerce industries and reduces the battery life.

[0038] The following describes a battery swapping system, a battery swapping control method, a battery swapping station and a battery swapping control device proposed in embodiments of the present invention with reference to the accompanying drawings.

[0039] refer to Figure 1 , is a schematic diagram of a battery replacement system according to some embodiments of the present invention.

[0040] The battery exchange system 100 of the present invention includes a battery exchange station 400 and a battery 60 with a liquid cooling function. The battery 60 is arranged on a battery rack 20 and is connected to the battery rack 20 .

[0041] The battery 60 includes a battery cell, a battery liquid cooling channel, a temperature sensor and a battery management system (BMS).

[0042] The battery cell is connected to the charging unit 30 through the battery rack 20; the battery liquid cooling channel is arranged on the periphery of the battery cell, and the battery liquid cooling channel is connected to the liquid cooling unit 40 through the transit liquid cooling channel of the battery rack 20. By arranging the battery liquid cooling channel in the battery 60, it is ensured that the battery 60 has liquid cooling capability; the temperature sensor is arranged on the battery cell, and the temperature sensor is used to obtain the temperature data of the battery cell.

[0043] The battery management system is connected to the battery cell and the temperature sensor. The battery management system is used to obtain the power data of the battery cell and the temperature data of the battery cell, and generate charging instructions according to the power data, and generate liquid cooling instructions according to the temperature data. The battery management system sends the charging instructions and liquid cooling instructions to the station control end 10 through the battery rack 20, so that the station control end 10 controls the charging unit 30 to supply power to the battery according to the charging instructions, and controls the liquid cooling unit 40 to cool the battery according to the liquid cooling instructions. During the entire communication process, the charging unit 30 is required to transparently transmit the battery vehicle CAN (Controller Area Network) communication message to the station control end 10, so as to improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capability of the battery replacement station.

[0044] In summary, the battery exchange system according to the embodiment of the present invention includes a battery exchange station and a battery with a liquid cooling function. The battery is arranged on a battery rack and connected to the battery rack. The battery includes: a battery cell, which is connected to a charging unit through a battery rack; a battery liquid cooling channel, which is arranged on the periphery of the battery cell and connected to a liquid cooling unit through a transit liquid cooling channel; a temperature sensor, which is arranged on the battery cell and is used to obtain the temperature data of the battery cell; a battery management system, which is connected to the battery cell and the temperature sensor, and is used to obtain the power data of the battery cell and the temperature data of the battery cell, and generates a charging instruction according to the power data, generates a liquid cooling instruction according to the temperature data, and sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack, so that the station control end controls the charging unit to supply power to the battery according to the charging instruction, and controls the liquid cooling unit to cool the battery according to the liquid cooling instruction. As a result, the system can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery exchange service capability of the battery exchange station.

[0045] refer to Figure 2 , which is a flow chart of a battery replacement control method according to some embodiments of the present invention.

[0046] like Figure 2 As shown, the battery replacement control method of the embodiment of the present invention may include the following steps:

[0047] S201, the battery management system obtains the power data and temperature data of the battery cell; determines whether the power data is less than a preset power threshold and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, sets a target power threshold, and generates a charging instruction based on the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, sets a target temperature threshold, and generates a liquid cooling instruction based on the target temperature threshold; sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack, wherein the preset power threshold, the first preset temperature threshold, the target power threshold and the target temperature threshold can be calibrated according to actual conditions.

[0048] Specifically, the temperature data of the battery cell can be obtained through the temperature sensor set on the battery cell, and the temperature data of the battery cell can be sent to the battery management system. After the battery management system receives the temperature data of the battery cell, the battery management system calculates the power data of the battery cell based on the current value, voltage value, temperature data and other information of the battery cell. After obtaining the power data and temperature data of the battery cell, the power data of the battery cell is compared with the preset power threshold to determine whether the power data of the battery cell is less than the preset power threshold. When the power data of the battery cell is not less than the preset power threshold, it means that the battery power is high and does not need to be charged; when the power data of the battery cell is less than the preset power threshold, the target power threshold is set, wherein the target power threshold can be set according to the optimal working state of the battery cell, indicating that the battery power is low and needs to be charged. At this time, a charging instruction is generated according to the target power threshold.

[0049] Compare the temperature data of the battery cell with the first preset temperature threshold (such as 30°C) to determine whether the temperature data of the battery cell is greater than the first preset temperature threshold. When the temperature data of the battery cell is not greater than the first preset temperature threshold, it means that the temperature of the battery cell is low and there is no need to lower the temperature of the battery cell. When the temperature data of the battery cell is greater than the first preset temperature threshold, set the target temperature threshold, where the target temperature threshold can be set according to the optimal working state of the battery cell, indicating that the temperature of the battery cell is high and the temperature of the battery cell needs to be lowered. At this time, generate a liquid cooling instruction according to the target temperature threshold. Then, the battery management system sends the generated charging instruction and liquid cooling instruction to the station control end.

[0050] S202, the station control end obtains the charging instruction and the liquid cooling instruction sent by the battery management system, and controls the charging unit to be turned on to supply power to the battery according to the charging instruction; and controls the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

[0051] Specifically, after the battery management system sends the generated charging instructions and liquid cooling instructions to the station control end, the station control end receives the charging instructions and liquid cooling instructions sent by the battery management system. The station control end controls the charging unit to be turned on to supply power to the battery according to the charging instructions until the battery cell's power data reaches the target power threshold, and the station control end controls to turn off the charging unit. The station control end controls the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instructions until the battery cell's temperature data reaches the target temperature threshold, and the station control end controls to turn off the liquid cooling unit. This can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery swap service capabilities of the battery swap station.

[0052] In some embodiments, after the vehicle enters the battery swap station, the vehicle's dead battery is placed on a battery rack, and the battery rack interacts with the charging unit to determine the current mode (energy storage mode, in-station charging mode, in-station monitoring mode, or battery swap mode). When the current mode is the in-station charging mode, the charging unit supplies power to the battery.

[0053] In some embodiments of the present invention, the above method further includes: the battery management system generates a stop charging instruction in response to the power data reaching a preset power threshold; generates a stop liquid cooling instruction in response to the temperature data being less than a second preset temperature threshold; sends the stop charging instruction and the stop liquid cooling instruction to the station control end through the battery rack; the station control end obtains the stop charging instruction sent by the battery management system and controls the shutdown of the charging unit; the station control end obtains the stop liquid cooling instruction sent by the battery management system and controls the shutdown of the liquid cooling unit. Among them, the second preset temperature threshold can be set according to actual conditions.

[0054] Specifically, when the power data of the battery cell reaches the preset power threshold, it means that the battery power is high and does not need to be charged. At this time, the battery management system generates a stop charging instruction. When the temperature data of the battery cell is less than the second preset temperature threshold (such as 26°C), it means that the temperature of the battery is low. At this time, the battery management system generates a stop liquid cooling instruction. The battery management system sends the stop charging instruction and the stop liquid cooling instruction to the station control end through the battery rack. When the station control end receives the stop charging instruction sent by the battery management system, it controls to shut down the charging unit to reduce energy consumption. When the station control end receives the stop liquid cooling instruction sent by the battery management system, it controls to shut down the liquid cooling unit to reduce energy consumption, improve battery charging efficiency, reduce charging waiting time, increase battery life, and improve the battery swap service capabilities of the battery swap station.

[0055] In some embodiments of the present invention, the method further includes: the station control end obtains the real-time temperature of the coolant in the liquid cooling unit obtained by the thermal cycle management module, and determines whether the real-time temperature is within a preset temperature range, and in response to the real-time temperature not being within the preset temperature range, adjusts the temperature of the coolant in the liquid cooling unit according to the preset temperature range. The preset temperature range can be calibrated according to actual conditions.

[0056] Specifically, the thermal cycle management module can obtain the real-time temperature of the coolant in the liquid cooling unit, and send the real-time temperature of the coolant in the liquid cooling unit to the station control end. After obtaining the real-time temperature of the coolant in the liquid cooling unit obtained by the thermal cycle management module, the station control end compares the real-time temperature of the coolant with the preset temperature range to determine whether the real-time temperature of the coolant is within the preset temperature range. When the real-time temperature of the coolant is not within the preset temperature range, it means that the real-time temperature of the coolant is too high or too low. At this time, the thermal cycle management module adjusts the temperature of the coolant in the liquid cooling unit according to the preset temperature range to make the temperature of the coolant in the liquid cooling unit within the preset temperature range, so that the battery temperature can be reduced when the battery temperature is high.

[0057] In some embodiments, the real-time temperature of the coolant in the liquid cooling unit can be set. In summer, the real-time temperature of the coolant is generally set to about 15°C; in other seasons, the real-time temperature of the coolant is generally set to about 20°C. The station control terminal can monitor the outlet water temperature (liquid cooling unit to battery) and inlet water temperature (battery to liquid cooling unit) of the coolant in the liquid cooling unit in real time.

[0058] As a specific embodiment, when it is detected that the temperature data of the battery cell is low (the battery does not need to be cooled), and the temperature difference between the temperature data of the battery cells of two adjacent batteries is within the range of 7°C-5°C, the station control end controls the liquid cooling unit to start the circulation mode to keep the battery warm.

[0059] In some embodiments of the present invention, the station control end preferentially executes the liquid cooling instruction.

[0060] Specifically, when the station control end receives the charging instruction and the liquid cooling instruction sent by the battery management system at the same time, it means that the battery cell has low power and high temperature, and the battery needs to be powered and cooled. Since the excessive temperature of the battery cell will cause problems such as reduced battery life and performance, battery safety, and battery thermal runaway, the station control end first needs to control the start of the liquid cooling unit to cool the battery according to the liquid cooling instruction, and then control the start of the charging unit to power the battery according to the charging instruction.

[0061] As a specific example, Figure 3 As shown, the flow chart of the power replacement control method of the present invention may include the following steps:

[0062] S301, determine whether the fault code level of the TMS (Transportation Management System) is zero. If yes, execute step S303; if not, execute step S302.

[0063] S302, determine whether the fault code level of the TMS is greater than 2. If yes, execute step S310.

[0064] S303, determine whether the battery rack is connected to the battery. If yes, execute step S304; if not, execute step S310.

[0065] S304, determine whether the battery has a thermal management requirement. If yes, execute step S305; if no, execute step S308.

[0066] S305: Determine whether the battery needs cooling. If yes, execute step S306.

[0067] S306, the battery management system requests the TMS to set the mode to cooling mode and the set temperature to 19°C.

[0068] S307, determine whether the working mode of the TMS is the cooling mode. If yes, execute step S312; if no, return to step S306.

[0069] S308, the battery management system requests the TMS to set the mode to the self-circulation mode and the set temperature to 19°C.

[0070] S309, determine whether the working mode of the TMS is the self-circulation mode. If yes, execute step S312; if no, return to step S308.

[0071] S310, the battery management system requests the TMS to set the mode to the shutdown mode and the set temperature to 19°C.

[0072] S311, determine whether the working mode of the TMS is the shutdown mode. If yes, execute step S312; if not, return to step S310.

[0073] S312, the charging unit and liquid cooling unit are operating normally.

[0074] Among them, the fault code level of TMS is zero, indicating that there is no fault in TMS; the fault code level of TMS is 2, indicating a body control module fault; the battery has a thermal management requirement, indicating that the real-time temperature of the coolant in the liquid cooling unit of this application is not within the preset temperature range; the battery has a cooling requirement, indicating that the temperature data of the battery cell of this application is greater than the first preset temperature threshold; the self-circulation mode indicates that the temperature of the coolant in the liquid cooling unit of this application is adjusted according to the preset temperature range.

[0075] In summary, according to the battery replacement control method of the embodiment of the present invention, the battery management system obtains the power data and temperature data of the battery cell; determines whether the power data is less than the preset power threshold, and whether the temperature data is greater than the first preset temperature threshold; in response to the power data being less than the preset power threshold, sets the target power threshold, and generates a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, sets the target temperature threshold, and generates a liquid cooling instruction according to the target temperature threshold; sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end obtains the charging instruction and the liquid cooling instruction sent by the battery management system, and controls the start of the charging unit to supply power to the battery according to the charging instruction; controls the start of the liquid cooling unit to cool the battery according to the liquid cooling instruction. Therefore, this method can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capability of the battery replacement station.

[0076] It should be noted that the method of the embodiment of the present invention can be executed by a single device, such as a computer or a server. The method of this embodiment can also be applied in a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiment of the present invention, and the multiple devices will interact with each other to complete the grain semantic segmentation method based on multi-feature fusion.

[0077] It should be noted that some embodiments of the present invention are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0078] refer to Figure 4 , which is a schematic diagram of a battery swap station according to some embodiments of the present invention.

[0079] The battery swap station 400 of the present invention includes a battery rack 20 , a charging unit 30 , a liquid cooling unit 40 , a station control terminal 10 and a thermal cycle management module 50 .

[0080] The battery rack 20 is connected to the battery 60, and the charging unit 30 is connected to the battery rack 20, that is, the battery rack 20 and the charging unit 30 communicate normally, and the battery 60 and the charging unit 30 communicate in real time, and the charging unit 30 supplies power to the battery 60 through the battery rack 20; the liquid cooling unit 40 is connected to the battery rack 20, and the liquid cooling unit 40 cools down the battery 60 through the battery rack 20, wherein the liquid cooling unit 40 is in a normal working state or there is no fault that affects the liquid cooling function; the station control terminal 10 is connected to the charging unit 30 and the liquid cooling unit 40, and the station control terminal 10 obtains charging instructions and liquid cooling instructions through the battery rack 20 and the charging unit 30, wherein the charging instructions can be set according to the power of the battery 60, and the liquid cooling instructions can be set according to the temperature of the battery 60, and the station control terminal 10 controls the charging unit 30 to supply power to the battery 60 according to the charging instructions, and controls the liquid cooling unit 40 to cool down the battery 60 according to the liquid cooling instructions.

[0081] The battery rack 20 is provided with at least one charging area, wherein each charging area can be placed with a battery 60, and the types of the batteries 60 placed in each charging area can be the same or different, and the charging area is connected to the charging unit 30, and the charging area is matched with the battery 60, that is, the battery 60 is placed in the corresponding charging area according to the type of the battery 60 to power the battery 60.

[0082] The battery rack 20 is provided with at least one transfer liquid cooling channel, one end (exit) of the transfer liquid cooling channel is connected to the battery liquid cooling channel of the battery 60, and the other end (inlet) of the transfer liquid cooling channel is connected to the liquid cooling unit 40. The transfer liquid cooling channel is used to transfer the coolant in the liquid cooling unit 40 to the battery liquid cooling channel of the battery 60 to cool the battery 60. When the temperature of the battery 60 drops to a certain value, the coolant in the battery liquid cooling channel of the battery 60 is transferred back to the liquid cooling unit 40 through the transfer liquid cooling channel of the battery rack 20 to reduce energy consumption and achieve the purpose of recycling.

[0083] The thermal cycle management module 50 is connected to the liquid cooling unit 40 and the station control terminal 10. The thermal cycle management module 50 obtains the real-time temperature of the coolant in the liquid cooling unit 40 and adjusts the temperature of the coolant in the liquid cooling unit 40 to keep the temperature of the coolant within a certain range.

[0084] In summary, the battery swap station according to the embodiment of the present invention includes: a battery rack, which is used to connect to the battery; a charging unit, which is connected to the battery rack and is used to power the battery through the battery rack; a liquid cooling unit, which is connected to the battery rack and is used to cool the battery through the battery rack; a station control terminal, which is connected to the charging unit and the liquid cooling unit, and is used to obtain charging instructions and liquid cooling instructions through the battery rack and the charging unit, and control the charging unit to power the battery according to the charging instructions, and control the liquid cooling unit to cool the battery according to the liquid cooling instructions. As a result, the battery swap station can reduce the battery temperature during the battery charging process, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery swap service capabilities of the battery swap station.

[0085] Corresponding to the above embodiments, the present invention also proposes a battery replacement control device.

[0086] like Figure 5 As shown, the battery replacement control device 500 of an embodiment of the present invention may include: a battery management system and a station control terminal.

[0087] Among them, the battery management system is configured to obtain the power data and temperature data of the battery cell; determine whether the power data is less than a preset power threshold and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, set a target power threshold, and generate a charging instruction based on the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, set a target temperature threshold, and generate a liquid cooling instruction based on the target temperature threshold; send the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end is configured to obtain the charging instruction and the liquid cooling instruction sent by the battery management system, control the charging unit to be turned on to power the battery according to the charging instruction; and control the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

[0088] In some embodiments of the present invention, the battery management system generates a stop charging instruction in response to the power data reaching a preset power threshold; generates a stop liquid cooling instruction in response to the temperature data being less than a second preset temperature threshold; sends the stop charging instruction and the stop liquid cooling instruction to the station control end through the battery rack; the station control end obtains the stop charging instruction sent by the battery management system, and controls the shutdown of the charging unit; the station control end obtains the stop liquid cooling instruction sent by the battery management system, and controls the shutdown of the liquid cooling unit.

[0089] In some embodiments of the present invention, the station control end obtains the real-time temperature of the coolant in the liquid cooling unit obtained by the thermal cycle management module, and determines whether the real-time temperature is within a preset temperature range. In response to the real-time temperature not being within the preset temperature range, the temperature of the coolant in the liquid cooling unit is adjusted according to the preset temperature range.

[0090] In some embodiments of the present invention, the station control end preferentially executes the liquid cooling instruction.

[0091] It should be noted that for details not disclosed in the battery replacement control device of the embodiment of the present invention, please refer to the details disclosed in the battery replacement control method of the embodiment of the present invention, and the specific details will not be repeated here.

[0092] In summary, the battery replacement control device according to the embodiment of the present invention includes: a battery management system, which is configured to obtain the power data and temperature data of the battery cell; determine whether the power data is less than the preset power threshold, and whether the temperature data is greater than the first preset temperature threshold; in response to the power data being less than the preset power threshold, set the target power threshold, and generate a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, set the target temperature threshold, and generate a liquid cooling instruction according to the target temperature threshold; send the charging instruction and the liquid cooling instruction to the station control end through the battery rack; the station control end is configured to obtain the charging instruction and the liquid cooling instruction sent by the battery management system, and control the start of the charging unit to supply power to the battery according to the charging instruction; control the start of the liquid cooling unit to cool the battery according to the liquid cooling instruction. As a result, the device can reduce the battery temperature during battery charging, improve the battery charging efficiency, reduce the charging waiting time, increase the battery life, and improve the battery replacement service capability of the battery replacement station.

[0093] In addition, although the operations of the method of the present invention are described in a specific order in the accompanying drawings, this does not require or imply that the operations must be performed in this specific order, or that all the operations shown must be performed to achieve the desired results. On the contrary, the steps depicted in the flow chart can be performed in a different order. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step, and / or one step can be decomposed into multiple steps.

[0094] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0095] Although the spirit and principle of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and this division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims. The scope of the attached claims conforms to the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A battery replacement system, characterized in that: The invention comprises a battery swap station (100) and a battery (60) having a liquid cooling function, wherein the battery (60) is arranged on the battery rack (20) and connected to the battery rack (20), and the battery (60) comprises: A battery cell, wherein the battery cell is connected to a charging unit (30) via the battery rack (20); A battery liquid cooling channel, the battery liquid cooling channel being arranged at the periphery of the battery cell and connected to the liquid cooling unit (40) via a transfer liquid cooling channel; A temperature sensor, which is disposed on the battery cell and is used to obtain temperature data of the battery cell; A battery management system, the battery management system is connected to the battery cell and the temperature sensor, and is used to obtain power data of the battery cell and temperature data of the battery cell, and generate a charging instruction according to the power data, and generate a liquid cooling instruction according to the temperature data, and send the charging instruction and the liquid cooling instruction to the station control end (10) through the battery rack (20), so that the station control end (10) controls the charging unit (30) to supply power to the battery (60) according to the charging instruction, and controls the liquid cooling unit (40) to cool the battery (60) according to the liquid cooling instruction.

2. A battery replacement control method, characterized in that: Applied to the battery replacement system according to claim 1, the method comprises: The battery management system obtains the power data and temperature data of the battery cell; determines whether the power data is less than a preset power threshold and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, sets a target power threshold, and generates a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, sets a target temperature threshold, and generates a liquid cooling instruction according to the target temperature threshold; sends the charging instruction and the liquid cooling instruction to the station control end through the battery rack; The station control end obtains the charging instruction and the liquid cooling instruction sent by the battery management system, and controls the charging unit to be turned on to supply power to the battery according to the charging instruction; and controls the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

3. The battery replacement control method according to claim 2, characterized in that: The method further comprises: The battery management system generates a stop charging instruction in response to the power data reaching the preset power threshold; generates a stop liquid cooling instruction in response to the temperature data being less than a second preset temperature threshold; and sends the stop charging instruction and the stop liquid cooling instruction to the station control end through the battery rack; The station control end obtains the stop charging instruction sent by the battery management system, and controls the shutdown of the charging unit; the station control end obtains the stop liquid cooling instruction sent by the battery management system, and controls the shutdown of the liquid cooling unit.

4. The battery replacement control method according to claim 3, characterized in that: The method further comprises: The station control end obtains the real-time temperature of the coolant in the liquid cooling unit obtained by the thermal cycle management module, and determines whether the real-time temperature is within a preset temperature range. In response to the real-time temperature not being within the preset temperature range, the temperature of the coolant in the liquid cooling unit is adjusted according to the preset temperature range.

5. The battery replacement control method according to claim 4, characterized in that: The station control end preferentially executes the liquid cooling instruction.

6. A battery swap station, characterized in that: include: A battery rack (20), the battery rack (20) being used to be connected to a battery (60); a charging unit (30), connected to the battery rack (20), and used to supply power to the battery (60) via the battery rack (20); a liquid cooling unit (40), connected to the battery rack (20), and used for cooling the battery (60) through the battery rack (20); The station control end (10) is connected to the charging unit (30) and the liquid cooling unit (40), and is used to obtain charging instructions and liquid cooling instructions through the battery rack (20) and the charging unit (30), control the charging unit (30) to supply power to the battery (60) according to the charging instructions, and control the liquid cooling unit (40) to cool the battery (60) according to the liquid cooling instructions.

7. The battery swap station according to claim 6, characterized in that: The battery rack (20) is provided with at least one charging area, the charging area is connected to the charging unit (30), and the charging area matches the battery (60) to supply power to the battery (60).

8. The battery swap station according to claim 7, characterized in that: The battery rack (20) is provided with at least one transfer liquid cooling channel, one end of the transfer liquid cooling channel is connected to the battery liquid cooling channel of the battery (60), and the other end of the transfer liquid cooling channel is connected to the liquid cooling unit (40), and the transfer liquid cooling channel is used to conduct the cooling liquid in the liquid cooling unit (40) to the battery liquid cooling channel of the battery (60) to cool the battery (60).

9. The battery swap station according to claim 8, characterized in that: It also includes a heat cycle management module (50), which is connected to the liquid cooling unit (40) and the station control terminal (10) and is used to obtain the real-time temperature of the coolant in the liquid cooling unit (40) and adjust the temperature of the coolant in the liquid cooling unit (40).

10. A battery replacement control device, characterized in that: include: The battery management system is configured to obtain power data and temperature data of the battery cell; determine whether the power data is less than a preset power threshold and whether the temperature data is greater than a first preset temperature threshold; in response to the power data being less than the preset power threshold, set a target power threshold, and generate a charging instruction according to the target power threshold; in response to the temperature data being greater than the first preset temperature threshold, set a target temperature threshold, and generate a liquid cooling instruction according to the target temperature threshold; send the charging instruction and the liquid cooling instruction to the station control end through the battery rack; The station control end is configured to obtain the charging instruction and the liquid cooling instruction sent by the battery management system, and control the charging unit to be turned on to supply power to the battery according to the charging instruction; and control the liquid cooling unit to be turned on to cool the battery according to the liquid cooling instruction.

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