Thermal management method, device and equipment for vehicle during charging process

Abstract

The application discloses a kind of heat management method, device and equipment to vehicle in charging process in charging process, it is related to charging pile field, the method comprises: in the case where the charging gun of charging pile is connected target vehicle, control target vehicle closes vehicle heat management function, vehicle heat management function is the function mode that target vehicle carries out heat management to itself;Obtain the battery temperature information of the vehicle battery of target vehicle;When battery temperature information indicates that there is cooling demand for vehicle battery, control the cooling liquid that charging gun is delivered to vehicle battery, to cool vehicle battery.This method is with high integration function module, according to battery temperature dynamically controls the cooling liquid that is delivered to vehicle battery, to be able to adaptively improve the cooling effect of battery in charging process, reduce the influence of heat generated in charging process on battery life, simultaneously, since reducing the generation of thermal energy in charging process, also make contribution for energy saving and emission reduction.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of charging piles, in particular to a heat management method, device and equipment for a vehicle during charging. BACKGROUND

[0002] In the rapidly developing electric vehicle industry today, fast charging function has become a key technology, which greatly improves the practicality and appeal of electric vehicles. Fast charging function usually relies on high-power charging piles to achieve fast charging of electric vehicles.

[0003] During the fast charging process of the vehicle battery, the input of the high-power power supply will generate a large amount of heat in the vehicle battery during charging. High temperature of the vehicle battery not only reduces the charging efficiency, but also accelerates the aging of the vehicle battery, affecting the life and performance of the vehicle battery. In related technologies, in view of the high heat problem of the vehicle battery during fast charging, the fast charging pile adopts a liquid cooling cable to reduce the heat generated during fast charging.

[0004] However, the cooling liquid pipeline in the existing liquid cooling cable supplies cooling liquid synchronously during the power supply of the current pipeline, and the supply mode is relatively single. SUMMARY

[0005] The embodiments of the present application provide a heat management method, device and equipment for a vehicle during charging. The technical solution is as follows:

[0006] On the one hand, a heat management method for a vehicle during charging is provided, characterized in that the method is executed by a charging pile, and the method comprises:

[0007] In the case that a charging gun of the charging pile is connected to a target vehicle, the target vehicle is controlled to close a vehicle heat management function, and the vehicle heat management function is a function mode in which the target vehicle manages itself;

[0008] Battery temperature information of a vehicle battery of the target vehicle is acquired;

[0009] When the battery temperature information indicates that the vehicle battery has cooling demand, the charging gun is controlled to deliver cooling liquid to the vehicle battery to cool the vehicle battery.

[0010] On the other hand, a heat management device for a vehicle during charging is provided, characterized in that the device comprises:

[0011] A first control module is configured to, in the case that a charging gun of the charging pile is connected to a target vehicle, control the target vehicle to close a vehicle heat management function, and the vehicle heat management function is a function mode in which the target vehicle manages itself;

[0012] obtaining a battery temperature information of a vehicle battery of the target vehicle;

[0013] controlling the charging gun to deliver cooling liquid to the vehicle battery to cool the vehicle battery when the battery temperature information indicates that there is a cooling demand for the vehicle battery.

[0014] In some optional embodiments, the second control module is further configured to control the charging gun to deliver cooling liquid to the vehicle battery to cool the vehicle battery when the battery temperature information reaches a preset temperature threshold.

[0015] In some optional embodiments, the second control module is further configured to determine flow rate control information matching the battery temperature information when the battery temperature information reaches the preset temperature threshold, the flow rate control information being used to control a flow rate of the cooling liquid; and control the charging gun to deliver cooling liquid to the vehicle battery to cool the vehicle battery based on the flow rate control information.

[0016] In some optional embodiments, the apparatus further includes:

[0017] a sending module configured to send, to the target vehicle, a permission confirmation request for requesting confirmation of a thermal management permission of the charging pile on the target vehicle when it is detected that the charging gun is connected to the target vehicle.

[0018] The first control module is further configured to control the target vehicle to close the vehicle thermal management function when a request confirmation message of the target vehicle on the permission confirmation request is received, the request confirmation message being a message fed back by the target vehicle when it confirms that it supports turning on the thermal management of the vehicle battery by the charging pile.

[0019] In some optional embodiments, the sending module is further configured to send, to the target vehicle, a thermal management closing request for requesting the target vehicle to close the vehicle thermal management function.

[0020] The apparatus further includes:

[0021] a receiving module configured to receive a closing confirmation message of the target vehicle, the closing confirmation message being used to indicate that the target vehicle has closed the vehicle thermal management function.

[0022] In some optional embodiments, the apparatus further includes:

[0023] a detecting module configured to detect a battery state of the vehicle battery.

[0024] The sending module is further configured to send an unlocking instruction to the target vehicle when the battery status meets a specified state requirement, the unlocking instruction being used to instruct to disconnect the thermal management of the target vehicle; and the target vehicle is configured to detect the battery temperature of the vehicle battery after receiving the unlocking instruction, and start the vehicle thermal management function according to the detected battery temperature.

[0025] In some optional embodiments, the sending module is further configured to send the unlocking instruction to the target vehicle when the battery status indicates that the vehicle battery is in a full-charge state; or when the battery status indicates that the battery temperature of the vehicle battery meets a vehicle thermal management strategy of the target vehicle; or when it is detected that the vehicle battery is disconnected.

[0026] In some optional embodiments, the charging pile is connected to the target vehicle through a charging cable and the charging gun, the charging cable and the charging gun are configured with cooling pipelines, and the cooling liquid is transported to the target vehicle through the cooling pipelines.

[0027] The cooling pipelines include an inlet pipeline and an outlet pipeline, the inlet pipeline being used to transport the cooling liquid to the vehicle battery, and the outlet pipeline being used to transport the cooling liquid back to the charging pile to form a loop.

[0028] The inlet pipeline is located at a first position in the charging cable, and the outlet pipeline is located at a second position in the charging cable.

[0029] When the charging cable includes one inlet pipeline and one outlet pipeline, the first position and the second position are adjacent to a current pipeline in the charging cable; when the charging cable includes one inlet pipeline and multiple outlet pipelines, a distance interval between the first position and the current pipeline is greater than a distance interval between the second position and the current pipeline.

[0030] In another aspect, a charging pile is provided, the charging pile including a charging gun, a processor and a memory, the memory storing at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the at least one program, the code set or the instruction set being loaded and executed by the processor to implement the method for thermal management of a vehicle during charging as described in any of the above embodiments of the present application.

[0031] In another aspect, a computer-readable storage medium is provided, and the storage medium stores at least one instruction, at least one program, a code set or an instruction set. The at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the method for thermal management of a vehicle during a charging process according to any one of the above embodiments of the present application.

[0032] In another aspect, a computer program product or computer program is provided, and the computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method for thermal management of a vehicle during a charging process according to any one of the above embodiments.

[0033] The technical solutions provided by the present application at least have the following beneficial effects:

[0034] In the process of charging the target vehicle through the charging pile, the charging pile controls the target vehicle to close the thermal management function of the target vehicle to take over the thermal management of the target vehicle during the charging process. In the process of thermal management of the target vehicle, when the battery temperature of the vehicle battery of the target vehicle indicates that the vehicle battery has a cooling demand, the charging pile controls the charging gun to deliver cooling liquid to the vehicle battery, so as to cool the vehicle battery during the charging process of the vehicle battery. That is, the method realizes dynamic control of delivering cooling liquid to the vehicle battery according to the battery temperature by using a high-integration function module, so as to adaptively improve the cooling effect of the battery during the charging process, reduce the influence of heat generated during the charging process on the service life of the battery, and at the same time, since the generation of heat energy during the charging process is reduced, the method also contributes to energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0036] Figure 1 is a structural block diagram of a charging system provided by an exemplary embodiment of the present application;

[0037] Figure 2 is a flowchart of a method for thermal management of a vehicle during a charging process provided by an exemplary embodiment of the present application;

[0038] Figure 3 is a flowchart of a method for thermal management of a vehicle during a charging process provided by an exemplary embodiment of the present application;

[0039] Figure 4 is a process flow chart provided by an exemplary embodiment of the present application, which shows a process of providing a vehicle with charging and cooling by a charging pile;

[0040] Figure 5 is a schematic diagram of a cooling loop provided by an exemplary embodiment of the present application;

[0041] Figure 6 is a schematic diagram of a cross section of a charging cable provided by an exemplary embodiment of the present application;

[0042] Figure 7 is a schematic diagram of a cross section of a charging cable provided by an exemplary embodiment of the present application;

[0043] Figure 8 is a structure block diagram of a thermal management device for a vehicle during charging provided by an exemplary embodiment of the present application;

[0044] Figure 9 is a structure block diagram of a thermal management device for a vehicle during charging provided by an exemplary embodiment of the present application;

[0045] Figure 10 is a structure block diagram of a charging pile provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0047] Figure 1 is a structure block diagram of a charging system provided by an exemplary embodiment of the present application. The charging system 100 comprises a charging pile 110 and a vehicle 120.

[0048] When the vehicle 120 needs to be charged, the charging pile 110 connects the vehicle 120 through a charging cable and a charging gun, and during the charging process, the charging pile 110 charges the vehicle 120 by delivering current to the vehicle battery of the vehicle 120.

[0049] In the embodiments of the present application, the charging pile 110 comprises a processor and a memory, and the memory stores at least one program, which is loaded and executed by the processor to implement the thermal management method for a vehicle during charging provided by the embodiments of the present application.

[0050] In some embodiments, the charging pile 110 establishes a communication connection with the vehicle 120. Alternatively, the above communication connection can be implemented as a wired connection, or the above communication connection can also be implemented as a wireless connection, which is not limited here.

[0051] Illustratively, the method for thermal management of a vehicle during charging provided in the present application is described, which is taken as an example of being executed by a charging pile, as shown in Figure 2 The method includes steps 210-230.

[0052] Step 210: When the charging gun of the charging pile is connected to the target vehicle, the target vehicle is controlled to close the vehicle thermal management function.

[0053] Illustratively, when the charging gun of the charging pile and the charging port of the target vehicle are physically connected and confirmed to be normal, it is determined that the charging gun of the charging pile is connected to the target vehicle.

[0054] Optionally, the target vehicle can be implemented as an electric vehicle (EV), a hybrid vehicle, a plug-in hybrid electric vehicle (PHEV), a range-extended electric vehicle (REEV), a fuel cell electric vehicle (FCEV), a mild hybrid vehicle (MHV), etc., which is not limited here.

[0055] In the embodiments of the present application, the vehicle thermal management function is provided in the target vehicle, wherein the vehicle thermal management function is a function mode of the target vehicle for thermal management of itself, i.e., the target vehicle performs thermal management on the vehicle battery thereof through the vehicle thermal management function.

[0056] In some embodiments, the vehicle thermal management function can be implemented as a function module in the on-board terminal of the target vehicle.

[0057] In some embodiments, when the charging gun of the charging pile is connected to the target vehicle, the charging pile sends a thermal management closing request to the target vehicle, the thermal management closing request being used to request the target vehicle to close the vehicle thermal management function, and a closing confirmation message of the target vehicle is received, the closing confirmation message being used to indicate that the target vehicle has closed the vehicle thermal management function.

[0058] Illustratively, when the target vehicle receives the thermal management closing request sent by the charging pile, the vehicle thermal management function is closed based on the thermal management closing request, and a closing confirmation message is sent to the charging pile.

[0059] In some embodiments, when the target vehicle receives the thermal management closing request sent by the charging pile, the function state of the vehicle thermal management function is detected, and in response to detecting that the vehicle thermal management function is turned on, the vehicle thermal management function is closed based on the thermal management closing request, and a closing confirmation message is sent to the charging pile, and in response to detecting that the vehicle thermal management function is closed, the closing confirmation message is directly sent to the charging pile.

[0060] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the battery temperature of the vehicle battery is detected, and in response to the battery temperature of the vehicle battery reaching a first temperature threshold, the vehicle thermal management function is closed based on the thermal management closing request, and a closing confirmation message is sent to the charging pile. Illustratively, in response to the battery temperature of the vehicle battery not reaching the first temperature threshold, the vehicle thermal management function is maintained to be turned on, and a management rejection message is sent to the charging pile, the management rejection message being used to indicate that the target vehicle does not close the vehicle thermal management function and rejects the thermal management of the target vehicle by the charging pile.

[0061] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the function closing confirmation information is displayed on the display of the vehicle terminal, and in response to receiving a confirmation operation of a user on the function closing confirmation information, the vehicle thermal management function is closed based on the confirmation operation, and a closing confirmation message is sent to the charging pile, and in response to receiving a rejection operation of the user on the function closing confirmation information, a management rejection message is sent to the charging pile based on the rejection operation.

[0062] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the battery charging mode of the vehicle battery is detected, and in response to detecting that the battery charging mode is a fast charging mode, the vehicle thermal management function is closed based on the thermal management closing request, and a closing confirmation message is sent to the charging pile, and in response to detecting that the battery charging mode is a standard charging mode and / or a slow charging mode, the vehicle thermal management function is maintained to be turned on, and a management rejection message is sent to the charging pile.

[0063] Step 220, obtaining battery temperature information of a vehicle battery of a target vehicle.

[0064] In the embodiments of the present application, the above-mentioned battery temperature information is used to indicate the temperature condition of the vehicle battery during charging by the charging pile.

[0065] In some embodiments, the charging pile sends a temperature acquisition message to the target vehicle, the target vehicle detects the battery temperature of the vehicle battery based on the temperature acquisition message after receiving the temperature acquisition message sent by the charging pile, generates battery temperature information based on the detection result, and sends the battery temperature information to the charging pile.

[0066] In some embodiments, the target vehicle detects the battery temperature of the vehicle battery by calling a temperature sensor.

[0067] Optionally, the battery temperature includes at least one of a cell temperature, a battery module temperature, a battery pack temperature, a battery surface temperature, a connection point temperature, a battery environment temperature, and a system coolant temperature.

[0068] The cell temperature is used to indicate the temperature of a single cell and / or a battery unit inside the battery; the battery module temperature is used to indicate the average temperature of the entire module and / or the temperature of a specific location of the module when the vehicle battery is composed of multiple cell modules; the battery pack temperature is used to indicate the average temperature of the entire battery system; the battery surface temperature is used to indicate the temperature of the battery shell or surface; the connection point temperature is used to indicate the temperature of the connection point between the cells inside the vehicle battery and / or the connection point between the cells and the external circuit; the battery environment temperature is used to indicate the external environment temperature in which the vehicle battery is located; and the system coolant temperature is used to indicate the temperature of the coolant in the vehicle battery system.

[0069] At step 230, when the battery temperature information indicates that the vehicle battery has a cooling demand, the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0070] Illustratively, the charging pile determines whether the vehicle battery has a cooling demand according to the battery temperature information, and in the case that the vehicle battery has a cooling demand, the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0071] Optionally, the determination of the cooling demand can be implemented as at least one of the following:

[0072] Firstly, whether the vehicle battery has a cooling demand is determined according to a preset temperature threshold.

[0073] Illustratively, when the battery temperature information reaches the preset temperature threshold, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0074] In some embodiments, the preset temperature threshold can be a preset fixed value; in other embodiments, the preset temperature threshold can be customized by the user through the vehicle terminal and / or the charging pile, which is not limited herein.

[0075] In some embodiments, when the battery temperature information reaches the preset temperature threshold, the battery temperature of the vehicle battery is continuously detected, and when it is determined that the battery temperature is higher than the preset temperature threshold for a duration reaching a preset duration, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0076] Secondly, whether the vehicle battery has a cooling demand is determined according to the change of the battery temperature.

[0077] In some embodiments, the battery temperature information is a battery temperature change of the vehicle battery in a preset time period. Illustratively, when the battery temperature information indicates that the battery temperature continues to rise, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver the cooling liquid to the vehicle battery to cool the vehicle battery.

[0078] Optionally, the length of the preset time period can be a preset fixed value, or the length of the preset time period can be customized by the user through the vehicle terminal and / or the charging pile, which is not limited here.

[0079] In some embodiments, the charging pile can control the flow rate of the cooling liquid. Illustratively, when the battery temperature information reaches a preset temperature threshold, flow rate control information matched with the battery temperature information is determined, wherein the flow rate control information is used to control the flow rate of the cooling liquid, and the charging gun is controlled to deliver the cooling liquid to the vehicle battery based on the flow rate control information to cool the vehicle battery. In some embodiments, the flow rate of the cooling liquid is positively correlated with the level of the battery temperature.

[0080] In some embodiments, when the battery temperature information is in a first temperature interval, the flow rate of the cooling liquid output by the charging gun is controlled at a first flow rate, and when the battery temperature information is in a second temperature interval, the flow rate of the cooling liquid output by the charging gun is controlled at a second flow rate, wherein the first temperature interval is lower than the second temperature interval, and the first flow rate is lower than the second flow rate.

[0081] In other embodiments, when the battery temperature information is a battery temperature change of the vehicle battery in a preset time period, a temperature difference of the battery temperature in the preset time period is determined based on the battery temperature information, flow rate control information matched with the temperature difference is determined based on the temperature difference, and the charging gun is controlled to deliver the cooling liquid to the vehicle battery based on the flow rate control information to cool the vehicle battery.

[0082] In some embodiments, when the first temperature difference reaches a first temperature difference threshold, the flow rate of the cooling liquid output by the charging gun is controlled at a third flow rate, and when the battery temperature information reaches a second temperature difference threshold, the flow rate of the cooling liquid output by the charging gun is controlled at a fourth flow rate, wherein the first temperature difference threshold is lower than the second temperature difference threshold, and the third flow rate is lower than the fourth flow rate.

[0083] In some embodiments, the charging pile controls the charging gun to directly deliver the cooling liquid to the vehicle battery, that is, the cooling liquid delivered by the charging gun to the target vehicle is directly guided to the pipeline inside the vehicle battery to transfer the heat generated by the vehicle battery during the charging process to the cooling liquid to reduce the battery temperature of the vehicle battery.

[0084] In some embodiments, the charging pile controls the charging gun to deliver the cooling liquid to the cooling system of the vehicle battery, and controls the cooling liquid to cool the vehicle battery through the cooling system, wherein the cooling system of the vehicle battery is a system for cooling the vehicle battery in the target vehicle, and in the embodiments of the present application, the cooling system is a water-cooled cooling system, that is, the cooling liquid is controlled to flow in the pipeline inside the vehicle battery to transfer the heat generated by the vehicle battery during the charging process to the cooling liquid to reduce the battery temperature of the vehicle battery.

[0085] In summary, in the process of charging the target vehicle through the charging pile, the charging pile controls the target vehicle to close its own thermal management function to take over the thermal management of the target vehicle during the charging process. In the process of thermal management of the target vehicle, when the battery temperature of the vehicle battery of the target vehicle indicates that the vehicle battery has a cooling demand, the charging pile controls the charging gun to deliver the cooling liquid to the vehicle battery, so as to cool the vehicle battery during the charging process of the vehicle battery. That is, the method realizes the dynamic control of delivering the cooling liquid to the vehicle battery according to the battery temperature by using a high-integrated functional module, so as to adaptively improve the cooling effect of the battery during the charging process, reduce the influence of the heat generated during the charging process on the battery life, and at the same time, since the generation of heat energy during the charging process is reduced, it also contributes to energy saving and emission reduction.

[0086] Please refer to Figure 3 which shows a flowchart of the method for thermal management of the vehicle during the charging process provided by an exemplary embodiment of the present application, and in the embodiments of the present application, the information interaction process between the charging pile and the target vehicle is described schematically. The method comprises steps 310-370.

[0087] Step 310, when detecting that the charging gun is connected to the target vehicle, sending a permission confirmation request to the target vehicle.

[0088] The permission confirmation request is used to request confirmation of the thermal management permission of the charging pile to the target vehicle.

[0089] In the embodiments of the present application, the permission confirmation request is transmitted through the communication network between the charging pile and the target vehicle. Alternatively, the communication network can be implemented as a wired network, or the communication network can be implemented as a wireless network.

[0090] In some embodiments, the charging pile and the target vehicle implement vehicle-to-infrastructure (V2I) communication through a wireless communication technology. Optionally, the charging pile accesses a mobile hotspot (WiFi) of the target vehicle and sends the permission confirmation request to the target vehicle through the WiFi; or the charging pile establishes a Bluetooth connection with the target vehicle and sends the permission confirmation request to the target vehicle through the Bluetooth.

[0091] In other embodiments, the charging pile is connected to the Internet through a communication network (such as 4G or 5G) to connect to a cloud server, and the target vehicle is also connected to the Internet through the communication network to connect to the cloud server. The charging pile sends the permission confirmation request to the cloud server, and the cloud server sends the permission confirmation request to the target vehicle.

[0092] In other embodiments, the charging cable of the charging pile is configured with a data transmission line, and the charging pile sends the permission confirmation request to the target vehicle through the data transmission line.

[0093] In step 320, when receiving the request confirmation message of the target vehicle to the permission confirmation request, a thermal management closing request is sent to the target vehicle.

[0094] Illustratively, the request confirmation message is a message fed back by the target vehicle when confirming that the target vehicle supports turning on the thermal management of the battery of the vehicle by the charging pile.

[0095] In some embodiments, the target vehicle determines whether the charging pile has the permission to perform the thermal management on the battery of the vehicle by confirming whether the battery of the target vehicle has a fast charging function. Illustratively, in response to that the battery of the target vehicle has the fast charging function, the target vehicle sends the request confirmation message to the charging pile.

[0096] In other embodiments, in the case that the battery of the target vehicle has the fast charging function, the target vehicle determines whether to send the request confirmation message to the charging pile according to a battery charging mode selected by a user in the charging process. Illustratively, in response to that the current battery charging mode is a fast charging mode, the request confirmation message is sent to the charging pile; and in response to that the current battery charging mode is a standard charging mode and / or a slow charging mode, a request failure message is sent to the charging pile, the request failure message being used to indicate that the charging pile does not have the permission to perform the thermal management on the battery of the vehicle.

[0097] In some embodiments, the permission confirmation request sent by the charging pile is received and processed by a battery management system (BMS) in the target vehicle, wherein the BMS is a system in the target vehicle responsible for monitoring and managing the state and performance of the battery.

[0098] In some embodiments, when the BMS of the target vehicle processes the permission confirmation request, the BMS can further include the BMS identification information of the target vehicle and the vehicle identification information of the target vehicle in the request confirmation message fed back to the charging pile in response to the permission confirmation request. The BMS identification information includes parameters and data that can uniquely identify and manage the BMS, such as a BMS ID. The vehicle identification information is used to indicate information that can uniquely identify the target vehicle, such as a vehicle identification number (VIN), a license plate number, a vehicle terminal ID, etc.

[0099] For example, when the charging pile receives the request confirmation message of the permission confirmation request from the target vehicle, the charging pile sends a thermal management closing request to the target vehicle, and the thermal management closing request is used to request the target vehicle to close the vehicle thermal management function. When the charging pile receives the request failure message of the permission confirmation request from the target vehicle, the charging pile ends the management process of the thermal management of the target vehicle.

[0100] In the embodiments of the present application, the target vehicle is provided with a vehicle thermal management function. The vehicle thermal management function is a function mode of the target vehicle for thermal management of itself, i.e., the target vehicle performs thermal management on the vehicle battery through the vehicle thermal management function.

[0101] Step 330, receiving a closing confirmation message of the target vehicle.

[0102] In the embodiments of the present application, the closing confirmation message is used to indicate that the target vehicle has closed the vehicle thermal management function. For example, when the target vehicle receives the thermal management closing request sent by the charging pile, the function state of the vehicle thermal management function is detected. In response to detecting that the vehicle thermal management function is turned on, the vehicle thermal management function is closed based on the thermal management closing request, and the closing confirmation message is sent to the charging pile. In response to detecting that the vehicle thermal management function is closed, the closing confirmation message is directly sent to the charging pile.

[0103] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the battery temperature of the vehicle battery is detected. In response to the battery temperature of the vehicle battery reaching a first temperature threshold, the vehicle thermal management function is closed based on the thermal management closing request, and the closing confirmation message is sent to the charging pile. For example, in response to the battery temperature of the vehicle battery not reaching the first temperature threshold, the vehicle thermal management function is maintained to be turned on, and a management rejection message is sent to the charging pile. The management rejection message is used to indicate that the target vehicle does not close the vehicle thermal management function, and to reject the thermal management of the target vehicle by the charging pile.

[0104] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the display function closing confirmation information is displayed through the display of the vehicle terminal, in response to receiving the confirmation operation of the user for the function closing confirmation information, the vehicle thermal management function is closed based on the confirmation operation, and the closing confirmation message is sent to the charging pile, in response to receiving the refusal operation of the user for the function closing confirmation information, the management refusal message is sent to the charging pile based on the refusal operation.

[0105] Optionally, when the target vehicle receives the thermal management closing request sent by the charging pile, the battery charging mode of the vehicle battery is detected, in response to detecting that the battery charging mode is the fast charging mode, the vehicle thermal management function is closed based on the thermal management closing request, and the closing confirmation message is sent to the charging pile, in response to detecting that the battery charging mode is the standard charging mode and / or the slow charging mode, the vehicle thermal management function is maintained to be turned on, and the management refusal message is sent to the charging pile.

[0106] In some embodiments, the thermal management closing request sent by the charging pile is received and processed by the BMS in the target vehicle, and illustratively, the BMS receives the thermal management closing request sent by the charging pile, and the BMS feeds back the closing confirmation message to the charging pile based on the thermal management closing request.

[0107] Illustratively, when the charging pile receives the closing confirmation message sent by the target vehicle, the charging pile performs thermal management on the target vehicle, that is, the charging pile takes over the thermal management of the vehicle battery of the target vehicle.

[0108] Step 340, obtaining battery temperature information of the vehicle battery of the target vehicle.

[0109] In the embodiments of the present application, the above-mentioned battery temperature information is used to indicate the temperature condition of the vehicle battery during the charging process through the charging pile.

[0110] In some embodiments, the charging pile sends a temperature acquisition message to the target vehicle, the target vehicle detects the battery temperature of the vehicle battery based on the temperature acquisition message after receiving the temperature acquisition message sent by the charging pile, generates the battery temperature information based on the detection result, and sends the battery temperature information to the charging pile.

[0111] In other embodiments, when the target vehicle determines that the vehicle battery of the target vehicle is managed by the charging pile, the battery temperature information of the vehicle battery is sent to the charging pile.

[0112] In some embodiments, the target vehicle continuously sends the battery temperature information of the vehicle battery to the charging pile at a preset frequency.

[0113] In some embodiments, the target vehicle detects the battery temperature of the vehicle battery by calling the temperature sensor.

[0114] Optionally, the battery temperature includes at least one of a cell temperature, a battery module temperature, a battery pack temperature, a battery surface temperature, a connection point temperature, a battery environment temperature, and a system coolant temperature.

[0115] The cell temperature is used to indicate the temperature of a single cell and / or a battery unit inside the battery. When the vehicle battery is a module composed of multiple cells, the battery module temperature is used to indicate the average temperature of the entire module and / or the temperature of a specific location of the module. The battery pack temperature is used to indicate the average temperature of the entire battery system. The battery surface temperature is used to indicate the temperature of the battery shell or surface. The connection point temperature is used to indicate the temperature of the connection point between the cells inside the vehicle battery and / or the connection point between the cells and the external circuit. The battery environment temperature is used to indicate the external environment temperature in which the vehicle battery is located. The system coolant temperature is used to indicate the temperature of the coolant in the vehicle battery system.

[0116] At step 350, when the battery temperature information indicates that the vehicle battery has a cooling demand, the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0117] Illustratively, the charging pile determines whether the vehicle battery has a cooling demand according to the battery temperature information, and in the case where the vehicle battery has a cooling demand, the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0118] Optionally, the determination of the cooling demand can be implemented as at least one of the following:

[0119] Firstly, whether the vehicle battery has a cooling demand is determined according to a preset temperature threshold.

[0120] Illustratively, when the battery temperature information reaches the preset temperature threshold, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0121] In some embodiments, the preset temperature threshold can be a preset fixed value; in other embodiments, the preset temperature threshold can be customized by the user through the vehicle terminal and / or the charging pile, which is not limited herein.

[0122] In some embodiments, when the battery temperature information reaches the preset temperature threshold, the battery temperature of the vehicle battery is continuously detected, and when it is determined that the battery temperature is higher than the preset temperature threshold for a duration reaching a preset duration, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver coolant to the vehicle battery to cool the vehicle battery.

[0123] Secondly, whether the vehicle battery has a cooling demand is determined according to the change of the battery temperature.

[0124] In some embodiments, the battery temperature information is a battery temperature change of the vehicle battery in a preset time period. Illustratively, when the battery temperature information indicates that the battery temperature continues to rise, it is determined that the vehicle battery has a cooling demand, and the charging gun is controlled to deliver cooling liquid to the vehicle battery for cooling the vehicle battery.

[0125] Optionally, the preset time period can be a preset fixed value, or the preset time period can be set by the user through the vehicle terminal and / or the charging pile, which is not limited herein.

[0126] In some embodiments, the determination of the cooling demand of the vehicle battery is performed locally at the charging pile, i.e., the charging pile determines whether the vehicle battery has a cooling demand according to the battery temperature information.

[0127] In some other embodiments, when the charging pile and the target vehicle are connected through the cloud server, the determination of the cooling demand of the vehicle battery is performed in the cloud server. Illustratively, the target vehicle sends the battery temperature information of the vehicle battery to the cloud server, and the cloud server determines whether the vehicle battery has a cooling demand according to the battery temperature of the vehicle battery. When the cloud server determines that the vehicle battery has a cooling demand, the cloud server sends a battery cooling instruction to the charging pile, the battery cooling instruction being used to control the charging pile to cool the vehicle battery. When the charging pile receives the battery cooling instruction, the charging gun is controlled to deliver cooling liquid to the vehicle battery based on the battery cooling instruction, so as to cool the vehicle battery. When the cloud server determines that the vehicle battery currently does not have a cooling demand, the battery temperature information of the target vehicle is continuously received, so as not to occupy the data processing and storage space of the charging pile locally in the case where there is no cooling demand.

[0128] In step 360, the battery state of the vehicle battery is detected.

[0129] In the embodiments of the present application, during the process in which the charging pile delivers cooling liquid to the target vehicle to cool the vehicle battery, the charging pile continuously detects the battery state of the vehicle battery.

[0130] In some embodiments, the charging pile sends a state acquisition request of the battery state to the target vehicle, and the target vehicle detects the battery state of the vehicle battery after receiving the state acquisition information, and feeds back the obtained battery state information to the charging pile, so that the charging pile acquires the battery state of the vehicle battery.

[0131] Optionally, the battery state of the vehicle battery includes at least one of the following states:

[0132] Firstly, the state of charge (SOC).

[0133] Illustratively, the state of charge is used to indicate the amount of electricity stored in the vehicle battery. In some embodiments, the state of charge of the vehicle battery is indicated by the ratio between the remaining amount of electricity in the vehicle battery and the rated capacity, for example, SOC 100%, SOC 50%.

[0134] Secondly, the state of temperature.

[0135] Illustratively, the state of temperature indicates the state of the battery temperature of the vehicle battery. Optionally, the above-mentioned battery temperature includes at least one of the cell temperature, the battery module temperature, the battery pack temperature, the battery surface temperature, the connection point temperature, the battery environment temperature, and the system cooling liquid temperature.

[0136] Thirdly, the state of charging and discharging.

[0137] Illustratively, the state of charging and discharging indicates that the vehicle battery is in a charging state or a discharging state, wherein the discharging state is used to indicate the state in which the vehicle battery stops charging.

[0138] Step 370, when the battery state meets the specified state requirement, send an unlock instruction to the target vehicle.

[0139] In the embodiments of the present application, the above-mentioned unlock instruction is used to indicate the disconnection of the thermal management of the target vehicle.

[0140] Optionally, the specified state requirement can be implemented as at least one of the following:

[0141] Firstly, in the case where the battery state is the state of charge, when the battery state indicates that the vehicle battery is in a full charge state, send an unlock instruction to the target vehicle.

[0142] That is, when the SOC of the vehicle battery reaches 100%, the charging pile sends an unlock instruction to the target vehicle, and in one example, the BMS of the target vehicle disconnects the connection with the cooling system of the charging pile after receiving the unlock instruction, and the charging pile no longer delivers cooling liquid to the target vehicle.

[0143] Secondly, in the case where the battery state is the state of temperature, when the battery state indicates that the battery temperature of the vehicle battery meets the vehicle thermal management strategy of the target vehicle, send an unlock instruction to the target vehicle.

[0144] In some embodiments, the target vehicle is configured with a vehicle thermal management strategy, which is used to indicate the processing condition of the thermal management of the vehicle battery.

[0145] In one example, the vehicle thermal management strategy includes: first level cooling: Negative Temperature Coefficient (NTC) Tmax≥X℃, inlet water temperature X℃, flow rate X L / min; second level cooling: NTC Tmax≥X℃, inlet water temperature X℃, flow rate X L / min; third level cooling: NTC Tmax≥X℃, inlet water temperature X℃, flow rate X L / min; when NTC Tmax≤X℃, the cooling is turned off.

[0146] In some embodiments, after the vehicle thermal management function is turned off, the target vehicle sends the vehicle thermal management strategy of the target vehicle to the charging pile, and the charging pile controls the delivery of the cooling liquid according to the battery state and the vehicle thermal management strategy.

[0147] Illustratively, when the battery temperature of the vehicle battery meets the vehicle thermal management strategy indicated closing cooling condition, the target vehicle is sent an unlock instruction, and the BMS disconnects the connection with the cooling system of the charging pile after receiving the unlock instruction, and the charging pile no longer delivers the cooling liquid to the target vehicle.

[0148] Thirdly, when the battery state is in the charging and discharging state, and the disconnection with the vehicle battery is detected, the target vehicle is sent an unlock instruction.

[0149] In some embodiments, when the vehicle battery ends in the middle of charging, the charging pile sends an unlock instruction to the target vehicle, and the BMS disconnects the connection with the cooling system of the charging pile after receiving the unlock instruction, and the charging pile no longer delivers the cooling liquid to the target vehicle.

[0150] In some embodiments, a charging stop button is configured on the charging pile, and when the charging pile detects that the charging stop button receives a triggering operation, the charging connection with the vehicle battery is disconnected, and an unlock instruction is sent to the target vehicle.

[0151] In other embodiments, when the charging pile detects that the charging gun is disconnected from the target vehicle, an unlock instruction is sent to the target vehicle.

[0152] In some embodiments, after receiving the unlock instruction, the target vehicle detects the battery temperature of the vehicle battery, and turns on the vehicle thermal management function according to the detected battery temperature. In one example, the BMS receives the unlock instruction, and judges whether the vehicle thermal management function needs to be turned on according to the battery temperature of the vehicle battery.

[0153] In summary, in the process of charging the target vehicle through the charging pile, the charging pile controls the target vehicle to close its own thermal management function to take over the thermal management of the target vehicle during the charging process. When the battery temperature of the vehicle battery of the target vehicle indicates that the vehicle battery has a cooling demand, the charging pile controls the charging gun to deliver cooling liquid to the vehicle battery, thereby cooling the vehicle battery during the charging process of the vehicle battery. That is, the method realizes dynamic control of delivering cooling liquid to the vehicle battery according to the battery temperature by using a highly integrated functional module, thereby adaptively improving the cooling effect of the battery during the charging process and reducing the impact of heat generated during the charging process on the battery life. At the same time, since the generation of heat energy during the charging process is reduced, it also contributes to energy saving and emission reduction.

[0154] Please refer to Figure 4 which shows a process flow diagram provided by the charging pile for providing charging and cooling for a vehicle according to an example embodiment of the present application. The flow includes:

[0155] Step 410, the charging pile and the electric vehicle complete physical connection and confirm normality.

[0156] Step 420, the charging pile sends information to the vehicle BMS system about whether to support opening the charging pile to synchronously manage the battery in the thermal management mode.

[0157] Step 430, the vehicle BMS provides BMS and vehicle identification information to the charging pile.

[0158] Step 441, when the charging pile and the vehicle function match, the vehicle closes its own thermal management cooling system, and the charging pile determines whether to open the cooling function for the vehicle according to the battery temperature or the charging integrated module.

[0159] Step 442, if cooling is needed, the charging pile controls the cooling liquid to be delivered from the liquid cooling integrated charging gun to the cooling system of the vehicle battery for cooling circulation.

[0160] Step 443, when the active charging is interrupted or the charging is completed, the vehicle disconnects the connection with the cooling system of the charging pile, and determines whether to open the self-thermal pipe cooling system according to the battery temperature.

[0161] Step 451, when the charging pile and the vehicle function do not match, the charging pile only opens the charging function for the vehicle, and the vehicle runs the self-thermal management cooling system.

[0162] Step 452, when the charging is completed, the charging gun is disconnected.

[0163] Please refer to Figure 5 which shows a schematic diagram of a cooling circuit according to an example embodiment of the present application. The cooling circuit includes a charging pile 510, a charging cable 520, a charging gun 530, and a target vehicle 540.

[0164] The charging pile 510 is connected to the target vehicle 540 through the charging cable 520 and the charging gun 530.

[0165] In the fast charging mode, the heat transfer path of the charging circuit is: the charging pile 510→the charging cable 520→the charging gun 530→the charging socket on the target vehicle 540→the battery charging interface of the vehicle battery→the battery high-voltage contactor→the inside of the battery pack→the surface of the battery cell.

[0166] In the embodiments of the present application, the cooling pipeline is arranged in the charging cable 520 and the charging gun 530, and the cooling liquid is transported to the target vehicle 540 through the cooling pipeline.

[0167] In some embodiments, the cooling pipeline includes an inlet pipeline and an outlet pipeline, the inlet pipeline is used to transport the cooling liquid to the vehicle battery, and the outlet pipeline is used to transport the cooling liquid back to the charging pile to form a loop. Illustratively, the inlet pipeline is located at a first position in the charging cable, and the outlet pipeline is located at a second position in the charging cable, wherein the first position and the second position can be configured according to different heat dissipation requirements of the charging cable 520.

[0168] Optionally, the number of inlet pipelines and the number of outlet pipelines can be the same; or the number of inlet pipelines and the number of outlet pipelines can be different, which is not limited here.

[0169] In some embodiments, when the number of inlet pipelines and the number of outlet pipelines are the same, the inlet pipelines and the outlet pipelines are arranged around the current pipeline in the charging cable in a symmetrical manner; in other embodiments, when the number of inlet pipelines and the number of outlet pipelines are different, the inlet pipelines are arranged around the current pipeline in the charging cable, and the outlet pipelines are arranged at a position away from the current pipeline, i.e., the distance interval between the first position and the current pipeline is greater than the distance interval between the second position and the current pipeline. In one example, the number of inlet pipelines is greater than the number of outlet pipelines, or the number of inlet pipelines is less than the number of outlet pipelines.

[0170] In some embodiments, the charging pile 510 further includes a cooling unit, which includes a water tank, a water pump, a radiator and a fan. The water pump drives the cooling liquid to circulate in the cooling system of the charging cable 520 and the vehicle battery, brings heat to the radiator, and then the fan dissipates heat, so as to realize greater current-carrying capacity than the conventional natural cooling of the charging gun 530 and reduce the energy consumption of the automobile itself, realize the integration and unification of the charging pile 510 and the automobile thermal management system, and better realize the goal of energy saving and emission reduction.

[0171] In some embodiments, as Figure 6As shown, it illustrates a cross-sectional schematic diagram of a charging cable 620 provided in an exemplary embodiment of this application. The charging cable 620 includes an inlet pipe 621 and an outlet pipe 622. The first position where the inlet pipe 621 is located and the second position where the outlet pipe 622 is located are adjacent to the current pipe 623 in the charging cable 620. That is, a coolant circuit is formed by one inlet and one outlet.

[0172] In other embodiments, such as Figure 7 As shown, it illustrates a cross-sectional schematic diagram of a charging cable 720 provided in an exemplary embodiment of this application. The charging cable 720 includes an inlet pipe 721 and two outlet pipes 722. The inlet pipe 721 is located between the current pipes 723, and the two outlet pipes 722 are located away from the current pipes 723. This layout can cope with the situation where the charging cable bundle corresponding to the current pipe 723 generates a lot of heat during fast charging, and the excessive temperature rise leads to an excessive temperature rise of the coolant. That is, a two-outlet and one-inlet configuration is adopted, with one pipe fitting in close to the charging cable bundle to cool it, and the other pipe being insulated to transport the coolant to cool the battery module and the charging module.

[0173] It should be noted that this application may display prompt interfaces, pop-ups, or output voice prompts before and during the collection of user data. These prompt interfaces, pop-ups, or voice prompts are used to inform the user that their data is being collected. This ensures that the application only begins the steps for collecting user data after receiving confirmation from the user regarding the prompt interface or pop-up; otherwise (i.e., without user confirmation), the steps for collecting user data end, meaning no user data is collected. In other words, all user data collected in this application is collected with the user's consent and authorization, and the collection, use, and processing of related user data must comply with the relevant laws, regulations, and standards of the relevant countries and regions.

[0174] Please refer to Figure 8 The diagram illustrates a structural block diagram of a thermal management device for a vehicle during charging, provided by an exemplary embodiment of this application. The device includes the following modules:

[0175] The first control module 810 is used to control the target vehicle to turn off the vehicle thermal management function when the charging gun of the charging pile is connected to the target vehicle. The vehicle thermal management function is the function mode in which the target vehicle performs thermal management on itself.

[0176] The acquisition module 820 is used to acquire the battery temperature information of the vehicle battery of the target vehicle;

[0177] The second control module 830 is configured to control the charging gun to deliver the cooling liquid to the vehicle battery to cool the vehicle battery when the battery temperature information indicates that the vehicle battery has a cooling demand.

[0178] In some optional embodiments, the second control module 830 is further configured to control the charging gun to deliver the cooling liquid to the vehicle battery to cool the vehicle battery when the battery temperature information reaches a preset temperature threshold.

[0179] In some optional embodiments, the second control module 830 is further configured to determine flow rate control information matched with the battery temperature information when the battery temperature information reaches the preset temperature threshold, the flow rate control information being used to control a flow rate of the cooling liquid; and control the charging gun to deliver the cooling liquid to the vehicle battery to cool the vehicle battery based on the flow rate control information.

[0180] In some optional embodiments, as shown in Figure 9 The apparatus further includes:

[0181] The sending module 840 is configured to send a permission confirmation request to the target vehicle when it is detected that the charging gun is connected to the target vehicle, the permission confirmation request being used to request confirmation of a thermal management permission of the charging pile on the target vehicle.

[0182] The first control module 810 is further configured to control the target vehicle to close the vehicle thermal management function when a request confirmation message of the target vehicle to the permission confirmation request is received, the request confirmation message being a message fed back by the target vehicle when the target vehicle confirms that it supports turning on the thermal management of the vehicle battery by the charging pile.

[0183] In some optional embodiments, the sending module 840 is further configured to send a thermal management closing request to the target vehicle, the thermal management closing request being used to request the target vehicle to close the vehicle thermal management function.

[0184] The apparatus further includes:

[0185] The receiving module 850 is configured to receive a closing confirmation message of the target vehicle, the closing confirmation message being used to indicate that the target vehicle has closed the vehicle thermal management function.

[0186] In some optional embodiments, the apparatus further includes:

[0187] The detection module 860 is configured to detect a battery state of the vehicle battery.

[0188] The sending module 840 is further configured to send an unlocking instruction to the target vehicle when the battery status meets a specified state requirement, the unlocking instruction being used to instruct to disconnect the thermal management of the target vehicle; and the target vehicle is configured to detect the battery temperature of the vehicle battery after receiving the unlocking instruction, and start the vehicle thermal management function according to the detected battery temperature.

[0189] In some optional embodiments, the sending module 840 is further configured to send the unlocking instruction to the target vehicle when the battery status indicates that the vehicle battery is in a full-charge state; or when the battery status indicates that the battery temperature of the vehicle battery meets the vehicle thermal management strategy of the target vehicle; or when it is detected that the vehicle battery is disconnected.

[0190] In some optional embodiments, the charging pile is connected to the target vehicle through a charging cable and the charging gun, the charging cable and the charging gun are configured with cooling pipelines, and the cooling liquid is transported to the target vehicle through the cooling pipelines.

[0191] The cooling pipelines include an inlet pipeline and an outlet pipeline, the inlet pipeline is used to transport the cooling liquid to the vehicle battery, and the outlet pipeline is used to transport the cooling liquid back to the charging pile to form a loop.

[0192] The inlet pipeline is located at a first position in the charging cable, and the outlet pipeline is located at a second position in the charging cable.

[0193] When the charging cable includes one inlet pipeline and one outlet pipeline, the first position and the second position are adjacent to the current pipeline in the charging cable; when the charging cable includes one inlet pipeline and multiple outlet pipelines, the distance interval between the first position and the current pipeline is greater than the distance interval between the second position and the current pipeline.

[0194] It should be noted that the vehicle thermal management device in the charging process provided in the above embodiments is only exemplified by the division of the above functional modules, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the vehicle thermal management device in the charging process provided in the above embodiments and the vehicle thermal management method in the charging process embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0195] Figure 10A structural block diagram of the charging pile 1000 provided by an example embodiment of the present application is shown. The processing module in the charging pile 1000 includes a processor 1001 and a memory 1002.

[0196] The processor 1001 can include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 1001 can be implemented in at least one of a hardware form of a digital signal processing (DSP), a field-programmable gate array (FPGA), a programmable logic array (PLA). The processor 1001 can also include a main processor and a coprocessor. The main processor is a processor for processing data in a wake-up state, also known as a central processing unit (CPU). The coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 1001 can be integrated with a graphics processor (GPU) that is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 1001 can also include an artificial intelligence (AI) processor for processing machine learning-related computing operations.

[0197] The memory 1002 can include one or more computer-readable storage media, which can be non-transitory. The memory 1002 can also include a high-speed random access memory, and a non-volatile memory such as one or more disk storage devices, flash storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 1002 is used to store at least one instruction for being executed by the processor 1001 to implement the heat management method for a vehicle during a charging process provided by the method embodiment of the present application.

[0198] By way of illustration, the charging pile 1000 also includes other components 1003, which can be understood by those skilled in the art, Figure 9 The structure shown in the above figure does not constitute a limitation on the charging pile 1000, and can include more or fewer components than those shown in the figure, or combine certain components, or use different component arrangements.

[0199] Those skilled in the art can understand that all or part of the steps of the various methods of the above-mentioned embodiments can be completed by programs instructing relevant hardware, and the programs can be stored in a computer readable storage medium. The computer readable storage medium can be a computer readable storage medium included in the memory in the above-mentioned embodiments, or can be a computer readable storage medium that exists separately and is not assembled into the terminal. The computer readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement the method for thermal management of the vehicle in the charging process according to any one of the above-mentioned embodiments.

[0200] Optionally, the computer readable storage medium can include a read-only memory (ROM), a random access memory (RAM), a solid state disk (SSD) or an optical disk, etc. The random access memory can include a resistance random access memory (ReRAM) and a dynamic random access memory (DRAM). The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0201] Those skilled in the art can understand that all or part of the steps of the above-mentioned embodiments can be completed by hardware, or can be completed by programs instructing relevant hardware, and the programs can be stored in a computer readable storage medium. The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0202] The above-mentioned is only the optional embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for thermal management of a vehicle during charging, characterized in that, The method is performed by the charging pile, and the method includes: When it is detected that the charging gun of the charging pile is connected to the target vehicle, an authorization confirmation request is sent to the target vehicle. The authorization confirmation request is used to request confirmation of the charging pile's thermal management authorization for the target vehicle. When a request confirmation message is received from the target vehicle regarding the permission confirmation request, the target vehicle is controlled to disable the vehicle thermal management function. The request confirmation message is a message fed back by the target vehicle when it confirms that it supports enabling the charging pile to perform thermal management on the vehicle battery. The vehicle thermal management function is the functional mode by which the target vehicle performs thermal management on itself. Obtain the battery temperature information of the target vehicle's battery; When the battery temperature information indicates that the vehicle battery needs cooling, the charging gun is controlled to deliver coolant to the vehicle battery to cool it.

2. The method according to claim 1, characterized in that, When the battery temperature information indicates that the vehicle battery requires cooling, controlling the charging gun to deliver coolant to the vehicle battery to cool it includes: When the battery temperature reaches a preset temperature threshold, the charging gun is controlled to deliver coolant to the vehicle battery to cool it.

3. The method according to claim 2, characterized in that, When the battery temperature reaches a preset temperature threshold, controlling the charging gun to deliver coolant to the vehicle battery to cool it includes: When the battery temperature information reaches the preset temperature threshold, flow rate control information matching the battery temperature information is determined, and the flow rate control information is used to control the flow rate of the coolant. Based on the flow rate control information, the charging gun is controlled to deliver coolant to the vehicle battery in order to cool the vehicle battery.

4. The method according to any one of claims 1 to 3, characterized in that, The control of the target vehicle to turn off the vehicle thermal management function includes: Send a thermal management shutdown request to the target vehicle, the thermal management shutdown request being used to request the target vehicle to disable the vehicle thermal management function; Receive a shutdown confirmation message from the target vehicle, the shutdown confirmation message being used to indicate that the target vehicle has turned off the vehicle thermal management function.

5. The method according to any one of claims 1 to 3, characterized in that, After the step of controlling the charging gun to deliver coolant to the vehicle battery to cool the vehicle battery when the battery temperature information indicates that the vehicle battery has a cooling requirement, the method further includes: Detect the battery status of the vehicle battery; When the battery status meets the specified status requirements, an unlock command is sent to the target vehicle. The unlock command is used to instruct the thermal management of the target vehicle to be disconnected. After receiving the unlock command, the target vehicle detects the battery temperature of the vehicle battery and activates the vehicle thermal management function according to the detected battery temperature.

6. The method according to claim 5, characterized in that, When the battery state meets the specified state requirements, sending an unlock command to the target vehicle includes: When the battery status indicates that the vehicle battery is fully charged, the unlock command is sent to the target vehicle; or, When the battery status indicates that the battery temperature of the vehicle battery meets the vehicle thermal management strategy of the target vehicle, the unlock command is sent to the target vehicle; or, When a disconnection from the vehicle battery is detected, the unlock command is sent to the target vehicle.

7. The method according to any one of claims 1 to 3, characterized in that, The charging pile is connected to the target vehicle via a charging cable and a charging gun. Cooling pipes are provided in the charging cable and the charging gun, and the coolant is delivered to the target vehicle through the cooling pipes. The cooling pipe includes an inlet pipe and an outlet pipe. The inlet pipe is used to supply coolant to the vehicle battery, and the outlet pipe is used to return coolant to the charging pile to form a loop. The liquid inlet pipe is located at a first position in the charging cable, and the liquid outlet pipe is located at a second position in the charging cable; When the charging cable includes an inlet pipe and an outlet pipe, the first position and the second position are adjacent to the current pipe in the charging cable; when the charging cable includes an inlet pipe and multiple outlet pipes, the distance between the first position and the current pipe is greater than the distance between the second position and the current pipe.

8. A thermal management device for a vehicle during charging, characterized in that, The device includes: The sending module is used to send an authorization confirmation request to the target vehicle when it is detected that the charging gun of the charging pile is connected to the target vehicle. The authorization confirmation request is used to request confirmation of the thermal management authorization of the charging pile to the target vehicle. The first control module is used to control the target vehicle to turn off the vehicle thermal management function when it receives a request confirmation message from the target vehicle for the permission confirmation request. The request confirmation message is a message fed back by the target vehicle when it confirms that it supports opening the charging pile to perform thermal management on the vehicle battery. The vehicle thermal management function is the functional mode in which the target vehicle performs thermal management on itself. The acquisition module is used to acquire the battery temperature information of the vehicle battery of the target vehicle; The second control module is used to control the charging gun to deliver coolant to the vehicle battery when the battery temperature information indicates that the vehicle battery has a cooling requirement, so as to cool the vehicle battery.

9. A charging pile, characterized in that, The charging pile includes a charging gun, a processor, and a memory. The memory stores at least one program, which is loaded and executed by the processor to implement the thermal management method for the vehicle during charging as described in any one of claims 1 to 7.

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