Thermal management method and apparatus for vehicle during charging, and device

Abstract

A thermal management method for a vehicle (120) during charging, comprising: when a charging gun of a charging pile (110) is connected to a target vehicle, controlling the target vehicle to turn off a vehicle thermal management function (210); acquiring battery temperature information of a vehicle battery of the target vehicle (220); and when the battery temperature information indicates that the vehicle battery has a cooling requirement, controlling the charging gun to deliver a coolant to the vehicle battery so as to cool the vehicle battery (230). The method can adaptively improve the cooling effect on the battery during charging, and reduce the impact of heat generated during charging on the service life of the battery. In addition, also disclosed are an apparatus and a device.

Description

Method, device and equipment for thermal management of vehicle during charging process

[0001] The present application claims priority from the Chinese patent application No. 202411115051.9 filed on August 14, 2024 and entitled "Method, device and equipment for thermal management of vehicle during charging process", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of charging piles, in particular to a method, device and equipment for thermal management of vehicle during charging process. BACKGROUND

[0003] 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.

[0004] 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 the charging process, and the high temperature of the vehicle battery will not only reduce the charging efficiency, but also accelerate the aging of the vehicle battery, affecting the life and performance of the vehicle battery. In the related art, 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.

[0005] 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

[0006] The embodiments of the present application provide a method, device and equipment for thermal management of vehicle during charging process. The technical solution is as follows:

[0007] On the one hand, a method for thermal management of vehicle during charging process is provided, the method is executed by a charging pile, and the method comprises:

[0008] In a case where a charging gun of the charging pile is connected to a target vehicle, the target vehicle is controlled to close a vehicle thermal management function, the vehicle thermal management function being a function mode in which the target vehicle performs thermal management on itself;

[0009] Battery temperature information of a vehicle battery of the target vehicle is acquired;

[0010] 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.

[0011] In another aspect, a device for thermal management of a vehicle during charging is provided, the device comprising:

[0012] a first control module configured to control the target vehicle to turn off a vehicle thermal management function when the charging gun of the charging pile is connected to the target vehicle, the vehicle thermal management function being a function mode in which the target vehicle performs thermal management on itself;

[0013] a obtaining module configured to obtain battery temperature information of a vehicle battery of the target vehicle;

[0014] a second control module configured to control the charging gun to deliver 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.

[0015] 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.

[0016] 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.

[0017] In some optional embodiments, the device further comprises:

[0018] a sending module configured to send an authority confirmation request to the target vehicle when it is detected that the charging gun is connected to the target vehicle, the authority confirmation request being used to request confirmation of a thermal management authority of the charging pile over the target vehicle;

[0019] the first control module is further configured to control the target vehicle to turn off the vehicle thermal management function when a request confirmation message of the target vehicle to the authority 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 charging pile over the vehicle battery.

[0020] In some optional embodiments, the sending module is further configured to send a thermal management turn-off request to the target vehicle, the thermal management turn-off request being used to request the target vehicle to turn off the vehicle thermal management function;

[0021] The device further comprises:

[0022] The receiving module is configured to receive a closing confirmation message of the target vehicle, where the closing confirmation message is used to indicate that the target vehicle has closed the vehicle thermal management function.

[0023] In some optional embodiments, the apparatus further comprises:

[0024] The detecting module is configured to detect a battery state of the vehicle battery.

[0025] The sending module is further configured to send an unlocking instruction to the target vehicle when the battery state meets a specified state requirement, where the unlocking instruction is used to instruct to disconnect the thermal management of the target vehicle; and the target vehicle is configured to detect a battery temperature of the vehicle battery after receiving the unlocking instruction, and to start the vehicle thermal management function according to the detected battery temperature.

[0026] In some optional embodiments, the sending module is further configured to send the unlocking instruction to the target vehicle when the battery state indicates that the vehicle battery is in a full-charge state; or to send the unlocking instruction to the target vehicle when the battery state indicates that the battery temperature of the vehicle battery meets a vehicle thermal management strategy of the target vehicle; or to send the unlocking instruction to the target vehicle when it is detected that the vehicle battery is disconnected.

[0027] In some optional embodiments, the charging pile is connected to the target vehicle through a charging cable and the charging gun, and the charging cable and the charging gun are configured with cooling pipelines through which the cooling liquid is delivered to the target vehicle.

[0028] The cooling pipelines comprise an inlet pipeline and an outlet pipeline, where the inlet pipeline is used to deliver the cooling liquid to the vehicle battery, and the outlet pipeline is used to deliver the cooling liquid back to the charging pile to form a loop.

[0029] 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.

[0030] When the charging cable comprises 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 comprises 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.

[0031] In another aspect, a charging pile is provided, which includes 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.

[0032] In another aspect, a computer readable storage medium is provided, which 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 being loaded and executed by a 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.

[0033] In another aspect, a computer program product or computer program is provided, which 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 charging as described in any of the above embodiments.

[0034] The technical solutions provided by the present application at least have the following beneficial effects:

[0035] In the process of charging a target vehicle by a charging pile, the charging pile controls the target vehicle to close its thermal management function to take over the thermal management of the target vehicle during charging. 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 of the vehicle battery. That is, the method realizes dynamic control of delivery of cooling liquid to the vehicle battery according to the battery temperature by a high-integrated functional module, so as to adaptively improve the cooling effect of the battery during charging, reduce the influence of heat generated during charging on the service life of the battery, and at the same time, since the generation of heat energy during charging is reduced, contribution is also made to energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0036] 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 as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0037] FIG. 1 is a structural block diagram of a charging system provided by an exemplary embodiment of the present application;

[0038] FIG. 2 is a flow chart of a method for thermal management of a vehicle during charging according to an example embodiment of the present application;

[0039] FIG. 3 is a flow chart of a method for thermal management of a vehicle during charging according to an example embodiment of the present application;

[0040] FIG. 4 is a flow chart of a process for providing charging cooling for a vehicle by a charging pile according to an example embodiment of the present application;

[0041] FIG. 5 is a schematic diagram of a cooling loop according to an example embodiment of the present application;

[0042] FIG. 6 is a schematic diagram of a cross section of a charging cable according to an example embodiment of the present application;

[0043] FIG. 7 is a schematic diagram of a cross section of a charging cable according to an example embodiment of the present application;

[0044] FIG. 8 is a structural block diagram of a thermal management device for a vehicle during charging according to an example embodiment of the present application;

[0045] FIG. 9 is a structural block diagram of a thermal management device for a vehicle during charging according to an example embodiment of the present application;

[0046] FIG. 10 is a structural block diagram of a charging pile according to an example embodiment of the present application. DETAILED DESCRIPTION

[0047] For the purpose of making the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0048] FIG. 1 shows a structural block diagram of a charging system according to an example embodiment of the present application. The charging system 100 includes a charging pile 110 and a vehicle 120.

[0049] 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 charging, the charging pile 110 charges the vehicle 120 by delivering current to the vehicle battery of the vehicle 120.

[0050] In the embodiments of the present application, the charging pile 110 includes a processor and a memory, and the memory stores at least one program, which is loaded and executed by the processor to implement the method for thermal management of a vehicle during charging according to the embodiments of the present application.

[0051] In some embodiments, the charging pile 110 establishes a communication connection with the vehicle 120. Optionally, the communication connection can be implemented as a wired connection, or the communication connection can also be implemented as a wireless connection, which is not limited herein.

[0052] By way of illustration, the method for thermal management of the vehicle during charging provided in the present application is described. For example, the method is executed by the charging pile, as shown in FIG. 2, the method includes the following steps 210 to 230.

[0053] In 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.

[0054] By way of illustration, 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.

[0055] 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 herein.

[0056] In the embodiments of the present application, the target vehicle is provided with a vehicle thermal management function, wherein the vehicle thermal management function is a function mode of the target vehicle for thermal management of itself, that is, the target vehicle performs thermal management on the vehicle battery thereof through the vehicle thermal management function.

[0057] In some embodiments, the vehicle thermal management function can be implemented as a function module in the vehicle terminal of the target vehicle.

[0058] 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 is 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 is used to indicate that the target vehicle has closed the vehicle thermal management function.

[0059] By way of illustration, 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.

[0060] 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, a closing confirmation message is directly sent to the charging pile.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Step 220, obtaining battery temperature information of a vehicle battery of a target vehicle.

[0065] 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.

[0066] 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.

[0067] In some embodiments, the target vehicle detects the battery temperature of the vehicle battery by calling a temperature sensor.

[0068] 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 junction temperature, a battery ambient temperature, and a system coolant temperature.

[0069] 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 junction 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 ambient temperature is used to indicate the external ambient temperature of the vehicle battery; and the system coolant temperature is used to indicate the temperature of the coolant in the vehicle battery system.

[0070] 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.

[0071] 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.

[0072] Optionally, the determination of the cooling demand can be implemented as at least one of the following:

[0073] Firstly, whether the vehicle battery has a cooling demand is determined according to a preset temperature threshold.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] That is, by presetting the temperature threshold to determine whether the charging pile needs to deliver cooling liquid to the vehicle battery, the cooling control in the charging process is optimized, the battery temperature is kept appropriate during high-power charging, the charging speed is improved, and when the temperature is low or the charging power is low, the system can reduce the circulation flow of the cooling liquid to reduce energy consumption.

[0078] Secondly, whether the vehicle battery needs cooling is determined according to the change of the battery temperature.

[0079] In some embodiments, the battery temperature information is the change of the battery temperature of the vehicle battery within 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 needs cooling, and the charging gun is controlled to deliver cooling liquid to the vehicle battery to cool the vehicle battery.

[0080] 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.

[0081] 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 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.

[0082] 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.

[0083] In some other embodiments, when the battery temperature information is the change of the battery temperature of the vehicle battery within a preset time period, a temperature difference of the battery temperature within 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 cooling liquid to the vehicle battery based on the flow rate control information to cool the vehicle battery.

[0084] 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.

[0085] That is, when delivering the cooling liquid to the vehicle battery, the flow rate of the cooling liquid is dynamically controlled according to the battery temperature of the vehicle battery, so that the battery temperature can be maintained in an optimal working interval (for example, 25-40℃), thereby significantly improving the charging efficiency of the vehicle battery, slowing down the battery aging speed, prolonging the cycle life of the battery, and at the same time, in a low-temperature environment or when the battery charging load is small, reducing the cooling liquid flow rate can reduce the energy consumption of the charging pile cooling system.

[0086] In some embodiments, the charging pile controls the charging gun to deliver the cooling liquid directly 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.

[0087] In other 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.

[0088] In summary, in the process of charging the target vehicle through the charging pile, the charging pile controls the target vehicle to close its thermal management function to take over the thermal management of the target vehicle during the charging process, and 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 needs cooling, the charging pile controls the charging gun to deliver the 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 the cooling liquid to the vehicle battery according to the battery temperature with a high-integration functional module, thereby adaptively improving the cooling effect of the battery during the charging process, reducing the impact of 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.

[0089] Please refer to FIG. 3, which shows a flowchart of the method for thermal management of a vehicle during charging 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 schematically illustrated. The method comprises steps 310-370.

[0090] Step 310, when detecting that the charging gun is connected to the target vehicle, sending a permission confirmation request to the target vehicle.

[0091] The permission confirmation request is used to request confirmation of the thermal management permission of the charging pile to the target vehicle.

[0092] In the embodiments of the present application, the permission confirmation request is transmitted through a communication network between the charging pile and the target vehicle. Optionally, the communication network can be implemented as a wired network, or the communication network can be implemented as a wireless network.

[0093] 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 the wireless fidelity (WiFi) of the target vehicle and sends the permission confirmation request to the target vehicle through the vehicle WiFi. Alternatively, the charging pile establishes a Bluetooth connection with the target vehicle and sends the permission confirmation request to the target vehicle through the Bluetooth.

[0094] 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. 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.

[0095] 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.

[0096] In step 320, when the request confirmation message of the target vehicle to the permission confirmation request is received, a thermal management closing request is sent to the target vehicle.

[0097] 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.

[0098] In some embodiments, the target vehicle determines whether the charging pile has the permission to perform 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 the battery of the target vehicle having the fast charging function, the target vehicle sends a request confirmation message to the charging pile.

[0099] In some embodiments, the target vehicle sends the request confirmation message to the charging pile in response to the current battery charging mode being a fast charging mode; and the target vehicle sends the request failure message to the charging pile in response to the current battery charging mode being a standard charging mode and / or a slow charging mode, wherein the request failure message is used to indicate that the charging pile does not have the permission to perform the thermal management on the vehicle battery.

[0100] 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.

[0101] In some embodiments, after the BMS in 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 sent to the charging pile in response to the permission confirmation request, wherein the BMS identification information includes parameters and data that can uniquely identify and manage the BMS, such as a BMS ID; and 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.

[0102] Illustratively, after the charging pile receives the request confirmation message of the target vehicle in response to the permission confirmation request, the charging pile sends a thermal management shutdown request to the target vehicle, wherein the thermal management shutdown request is used to request the target vehicle to shut down the vehicle thermal management function; and after the charging pile receives the request failure message of the target vehicle in response to the permission confirmation request, the charging pile ends the management process of the thermal management on the target vehicle.

[0103] In the embodiments of the present application, the target vehicle is provided with a vehicle thermal management function, wherein the vehicle thermal management function is a functional mode of the target vehicle for performing thermal management on itself, i.e., the target vehicle performs thermal management on the vehicle battery of itself through the vehicle thermal management function.

[0104] Step 330, receiving a shutdown confirmation message of the target vehicle.

[0105] 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. Illustratively, after 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 a closing confirmation message is sent to the charging pile, in response to detecting that the vehicle thermal management function is closed, a closing confirmation message is directly sent to the charging pile.

[0106] 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 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 refusal message is sent to the charging pile, the management refusal message being used to indicate that the target vehicle does not close the vehicle thermal management function and refuses the thermal management of the target vehicle by the charging pile.

[0107] 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, 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, in response to receiving a refusal operation of the user on the function closing confirmation information, a management refusal message is sent to the charging pile based on the refusal operation.

[0108] 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 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, 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 refusal message is sent to the charging pile.

[0109] In some embodiments, the thermal management closing request sent by the charging pile is received and processed by the BMS in the target vehicle. Illustratively, the BMS receives the thermal management closing request sent by the charging pile, and the BMS feeds back a closing confirmation message to the charging pile based on the thermal management closing request.

[0110] 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, i.e., the charging pile takes over the thermal management of the vehicle battery of the target vehicle.

[0111] Step 340, obtaining battery temperature information of the vehicle battery of the target vehicle.

[0112] In the embodiments of the present application, the battery temperature information is used to indicate the temperature condition of the vehicle battery during the charging process by the charging pile.

[0113] 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.

[0114] In some other embodiments, the target vehicle sends the battery temperature information of the vehicle battery to the charging pile after determining that the vehicle battery of the target vehicle is subjected to thermal management by the charging pile.

[0115] In some embodiments, the target vehicle continuously sends the battery temperature information of the vehicle battery to the charging pile at a preset frequency.

[0116] In some embodiments, the target vehicle detects the battery temperature of the vehicle battery by calling a temperature sensor.

[0117] 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.

[0118] 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 position of the module when the vehicle battery is composed of a plurality of cells; 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.

[0119] In step 350, when the battery temperature information indicates that the vehicle battery has a cooling demand, the charging gun is controlled to deliver the coolant to the vehicle battery to cool the vehicle battery.

[0120] Illustratively, the charging pile determines whether the vehicle battery has a cooling demand according to the battery temperature information, and controls the charging gun to deliver the coolant to the vehicle battery to cool the vehicle battery when the vehicle battery has a cooling demand.

[0121] Optionally, the determination of the cooling demand can be implemented as at least one of the following:

[0122] Firstly, whether the vehicle battery has a cooling demand is determined according to a preset temperature threshold.

[0123] 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 cooling liquid to the vehicle battery to cool the vehicle battery.

[0124] 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 here.

[0125] 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 cooling liquid to the vehicle battery to cool the vehicle battery.

[0126] Secondly, whether the vehicle battery has a cooling demand is determined according to the change of the battery temperature.

[0127] In some embodiments, the battery temperature information is the change of the battery temperature of the vehicle battery within a preset time period, and 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 to cool the vehicle battery.

[0128] Optionally, the duration of the preset time period can be a preset fixed value; or the duration 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.

[0129] In some embodiments, the determination process of the cooling demand of the vehicle battery is performed locally at the charging pile, that is, the charging pile determines whether the vehicle battery has a cooling demand according to the battery temperature information.

[0130] In other embodiments, when the charging pile and the target vehicle establish a connection through the cloud server, the determination process 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, it 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, it controls the charging gun to deliver cooling liquid to the vehicle battery to cool the vehicle battery based on the battery cooling instruction. When the cloud server determines that the vehicle battery currently does not have a cooling demand, it continues to receive the battery temperature information of the target vehicle, 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.

[0131] Step 360, detecting the battery state of the vehicle battery.

[0132] In the embodiment of the present application, during the process that the charging pile delivers the cooling liquid to the target vehicle to cool the vehicle battery, the charging pile continuously detects the battery state of the vehicle battery.

[0133] 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.

[0134] Optionally, the battery state of the vehicle battery includes at least one of the following states:

[0135] First, the state of charge (SOC).

[0136] 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 obtained by the ratio between the remaining electricity of the vehicle battery and the rated capacity, for example, SOC 100%, SOC 50%.

[0137] Second, the temperature state.

[0138] Illustratively, the temperature state indicates the state of the battery temperature of the vehicle battery. Optionally, the above-mentioned battery temperature includes at least one of the following: cell temperature, battery module temperature, battery pack temperature, battery surface temperature, connection point temperature, battery environment temperature, and system cooling liquid temperature.

[0139] Third, the charging and discharging state.

[0140] Illustratively, the charging and discharging state indicates that the vehicle battery is in a charging state or a discharging state, wherein the discharging state is used to indicate the state that the vehicle battery stops charging.

[0141] Step 370, when the battery state meets the specified state requirement, sending an unlocking instruction to the target vehicle.

[0142] In the embodiment of the present application, the above-mentioned unlocking instruction is used to indicate the disconnection of the thermal management of the target vehicle.

[0143] Optionally, the specified state requirement can be implemented as at least one of the following:

[0144] First, in the case that the battery state is the state of charge, when the battery state indicates that the vehicle battery is in a full charge state, the unlocking instruction is sent to the target vehicle.

[0145] That is, when the vehicle battery SOC 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.

[0146] Secondly, when the battery state is a temperature state, and the battery state indicates that the battery temperature of the vehicle battery meets the vehicle thermal management strategy of the target vehicle, an unlock instruction is sent to the target vehicle.

[0147] In some embodiments, the target vehicle is configured with a vehicle thermal management strategy for indicating the processing conditions of the thermal management of the vehicle battery.

[0148] 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.

[0149] In some embodiments, after the vehicle thermal management function of the target vehicle is turned off, the vehicle thermal management strategy of the target vehicle is sent 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.

[0150] Illustratively, when the battery temperature of the vehicle battery meets the turn-off cooling condition indicated by the vehicle thermal management strategy, an unlock instruction is sent 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 cooling liquid to the target vehicle.

[0151] Thirdly, when the battery state is a charging-discharging state, and it is detected that the connection with the vehicle battery is disconnected, an unlock instruction is sent to the target vehicle.

[0152] In some embodiments, when the vehicle battery ends charging halfway, 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 cooling liquid to the target vehicle.

[0153] 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.

[0154] In some embodiments, when the charging pile detects that the charging gun is disconnected from the target vehicle, the charging pile sends an unlocking instruction to the target vehicle.

[0155] In some embodiments, after receiving the unlocking instruction, the target vehicle detects the battery temperature of the vehicle battery, and starts the vehicle thermal management function according to the detected battery temperature. In one example, the BMS determines whether to start the vehicle thermal management function according to the cell temperature of the vehicle battery after receiving the unlocking instruction.

[0156] In summary, during the charging process of the target vehicle by 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 needs cooling, 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 with high integration of functional modules, thereby adaptively improving the cooling effect of the battery during the charging process, 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.

[0157] In the embodiments of the present application, the charging pile takes over the thermal management of the target vehicle when it determines that it has the right to manage the thermal management of the target vehicle, which can ensure accurate control of the thermal management of the target vehicle by the charging pile, improve the effectiveness of the thermal management takeover of the charging pile, and avoid unknown damage to the target vehicle when the charging pile does not have the right.

[0158] In the embodiments of the present application, the charging pile closes the vehicle thermal management function of the target vehicle when it determines that it has the right to manage the thermal management of the target vehicle, thereby taking over the thermal management of the target vehicle, avoiding command conflicts when multiple functional systems are running simultaneously, and ensuring the unity of the thermal management of the vehicle battery.

[0159] In the embodiments of the present application, the charging pile detects the matching between the battery state of the vehicle battery and the specified state requirement to realize automatic unlocking of the thermal management, making the thermal management of the target vehicle by the charging pile more intelligent, reducing the need for user operation, and thereby improving the intelligence of the charging system.

[0160] Please refer to FIG. 4, which shows a process flow diagram of the charging pile providing charging and cooling for a vehicle according to an example provided by the present application. The flow includes:

[0161] Step 410: The charging pile and the electric vehicle complete physical connection and confirm normality.

[0162] The physical connection refers to a hardware connection between the charging pile and the electric vehicle, that is, inserting the charging plug of the electric vehicle into the socket of the charging pile, or inserting the charging gun of the charging pile into the charging port of the electric vehicle.

[0163] In step 420, the charging pile sends information to the vehicle BMS about whether to support the mode of starting the charging pile to synchronously manage the battery.

[0164] In some embodiments, the charging pile sends a permission confirmation request to the vehicle BMS, and the permission confirmation request is used to request confirmation of the heat management permission of the charging pile to the electric vehicle.

[0165] Optionally, the above-mentioned permission confirmation request is transmitted through a communication network between the charging pile and the electric vehicle. Optionally, the above-mentioned communication network can be implemented as a wired network, or the above-mentioned communication network can be implemented as a wireless network.

[0166] Optionally, 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 electric vehicle through the data transmission line.

[0167] In step 430, the vehicle BMS provides the BMS and vehicle identification information to the charging pile.

[0168] In some embodiments, the BMS of the electric vehicle processes the received permission confirmation request and feeds back a request confirmation message corresponding to the permission confirmation request to the charging pile. The request confirmation message is a message fed back by the electric vehicle when confirming that the electric vehicle supports starting the heat management of the charging pile to the vehicle battery.

[0169] Optionally, the above-mentioned request confirmation message includes the BMS identification information of the electric vehicle and the vehicle identification information of the electric vehicle. The BMS identification information includes parameters and data capable of uniquely identifying and managing the BMS, such as a BMS ID. The vehicle identification information is used to indicate information capable of uniquely identifying the target vehicle, such as a VIN, a license plate number, a vehicle terminal ID, etc.

[0170] In step 441, when the charging pile and the vehicle function match, the electric vehicle closes the heat management cooling system of the electric vehicle, and the charging pile determines whether to start the cooling function of the vehicle according to the battery temperature or the charging integrated module.

[0171] In some embodiments, the charging pile can determine whether the vehicle battery of the electric vehicle has a fast charging function by providing the BMS and vehicle identification information to the charging pile through the vehicle BMS. When the electric vehicle has a fast charging function, it means that the charging pile has the permission to manage the heat of the vehicle battery.

[0172] In some embodiments, when the charging pile determines to have the right to perform thermal management on the vehicle battery, a thermal management closing request is sent to the electric vehicle, the thermal management closing request is used to request the electric vehicle to close the vehicle thermal management function, after the electric 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 a 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.

[0173] In some embodiments, the charging pile obtains the cell temperature of the vehicle battery of the electric vehicle to determine whether to turn on the cooling function of the vehicle, or obtains the state of the charging integrated module of the electric vehicle to determine whether the vehicle battery is fully charged to determine whether to turn on the cooling function of the vehicle.

[0174] 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.

[0175] Optionally, when the cell temperature of the vehicle battery reaches a preset temperature threshold, it is determined that cooling is needed; or when the state of the charging integrated module indicates that the vehicle battery is in charging, it is determined that cooling is needed.

[0176] Illustratively, the charging pile controls the cooling gun to deliver 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 electric 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 charging to the cooling liquid to reduce the battery temperature of the vehicle battery.

[0177] Step 443, active charging interruption or charging completion, the electric vehicle disconnects the connection with the cooling system of the charging pile, and determines whether to turn on the thermal management cooling system of the electric vehicle according to the cell temperature.

[0178] Illustratively, when the physical connection between the charging pile and the electric vehicle is interrupted, it is determined that the active charging is interrupted; when the charging pile detects that the battery capacity of the vehicle battery of the electric vehicle is full, it is determined that the charging is completed.

[0179] After the electric vehicle disconnects the connection with the cooling system of the charging pile, the electric vehicle detects the battery temperature of the vehicle battery, and determines whether to turn on the vehicle thermal management function according to the detected battery temperature. In one example, the BMS determines whether to turn on the thermal management system of the electric vehicle according to the cell temperature of the vehicle battery after receiving the unlocking instruction.

[0180] Step 451, the charging pile and the vehicle function do not match, the charging pile only opens the charging function for the vehicle, and the electric vehicle runs the self thermal management cooling system.

[0181] In some embodiments, when the charging pile provides the BMS and vehicle identification information to the charging pile through the vehicle BMS, it is determined that the vehicle battery of the electric vehicle does not have a fast charging function, and the charging pile does not have the right to manage the heat of the vehicle battery. In this case, the charging pile is only used for charging, and the electric vehicle runs the self thermal management cooling system.

[0182] Step 452, the charging is completed, and the charging gun is disconnected.

[0183] Optionally, the above-mentioned charging completion can be realized as an active realization of the interruption of the physical connection between the charging pile and the electric vehicle, or an automatic interruption when it is determined that the battery capacity of the vehicle battery of the electric vehicle is full.

[0184] Please refer to FIG. 5, which shows a schematic diagram of a cooling circuit provided by an example embodiment of the present application, which includes a charging pile 510, a charging cable 520, a charging gun 530 and a target vehicle 540.

[0185] The charging pile 510 connects the target vehicle 540 through the charging cable 520 and the charging gun 530.

[0186] 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.

[0187] In the embodiments of the present application, the cooling pipeline is configured 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.

[0188] 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.

[0189] 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.

[0190] In some embodiments, when the number of liquid inlet pipes and the number of liquid outlet pipes are the same, the liquid inlet pipes and the liquid outlet pipes are arranged in a symmetrical manner around the current pipes in the charging cable; in other embodiments, when the number of liquid inlet pipes and the number of liquid outlet pipes are different, the liquid inlet pipes are arranged around the current pipes in the charging cable, and the liquid outlet pipes are arranged away from the current pipes, i.e., the distance interval between the first position and the current pipes is greater than the distance interval between the second position and the current pipes. In one example, the number of liquid inlet pipes is greater than the number of liquid outlet pipes, or the number of liquid inlet pipes is less than the number of liquid outlet pipes.

[0191] 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, carries heat to the radiator, and is cooled by the fan, thereby realizing greater current-carrying capacity than the conventional natural cooling charging gun 530 and reducing the energy consumption of the automobile itself, realizing the integration and unification of the charging pile 510 and the automobile thermal management system, and better realizing the goal of energy saving and emission reduction.

[0192] In some embodiments, as shown in FIG. 6, which shows a cross-sectional view of a charging cable 620 provided by an exemplary embodiment of the present application, the charging cable 620 includes one liquid inlet pipe 621 and one liquid outlet pipe 622. The first position of the liquid inlet pipe 621 and the second position of the liquid outlet pipe 622 are adjacent to the current pipes 623 in the charging cable 620, i.e., the one-in-one-out mode is used to form a cooling liquid circuit.

[0193] In other embodiments, as shown in FIG. 7, which shows a cross-sectional view of a charging cable 720 provided by an exemplary embodiment of the present application, the charging cable 720 includes one liquid inlet pipe 721 and two liquid outlet pipes 722. The first position of the liquid inlet pipe 721 is between the current pipes 723, and the two liquid outlet pipes 722 are located away from the current pipes 723. This layout can cope with the situation that the current pipes 723 corresponding to the charging cable bundle generate a large amount of heat during fast charging, and the temperature rise of the cooling liquid is also too large, i.e., the two-out-one-in form is used, one is attached to the charging cable bundle to cool it, and one is well insulated to transport cooling liquid to cool the battery module and the charging module, thereby reducing the influence of the cooling liquid after absorbing heat transported by the liquid outlet pipe 722 on the liquid inlet pipe 721 and the current pipe 723, and improving the cooling efficiency of the cooling liquid output by the charging pile.

[0194] It should be noted that before collecting the relevant data of the user and in the process of collecting the relevant data of the user, the prompt interface, the pop-up window or the output voice prompt information can be displayed, the prompt interface, the pop-up window or the voice prompt information is used to prompt that the relevant data of the user is currently being collected, so that the application starts to perform the related steps of obtaining the relevant data of the user only after obtaining the confirmation operation of the user to the prompt interface or the pop-up window, otherwise (that is, without obtaining the confirmation operation of the user to the prompt interface or the pop-up window), ending the related steps of obtaining the relevant data of the user, that is, not obtaining the relevant data of the user. In other words, all the user data collected by the application is collected under the condition that the user agrees and authorizes, and the collection, use and processing of the relevant user data need to comply with the relevant laws, regulations and standards of the country and region.

[0195] Please refer to FIG. 8, which shows a structural block diagram of a heat management device for a vehicle during charging provided by an exemplary embodiment of the application, which includes the following modules:

[0196] The first control module 810 is configured to control the target vehicle to turn off a vehicle heat management function when the charging gun of the charging pile is connected to the target vehicle, the vehicle heat management function being a function mode in which the target vehicle performs heat management on itself.

[0197] The acquisition module 820 is configured to acquire battery temperature information of a vehicle battery of the target vehicle.

[0198] The second control module 830 is configured to control the charging gun to deliver 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.

[0199] In some optional embodiments, the second control module 830 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.

[0200] 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 the 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.

[0201] In some optional embodiments, as shown in FIG. 9, the device further includes:

[0202] The sending module 840 is configured to send, when it is detected that the charging gun is connected to the target vehicle, a permission confirmation request to the target vehicle, where the permission confirmation request is used to request confirmation of the thermal management permission of the charging pile to the target vehicle.

[0203] 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, where the request confirmation message is a message fed back by the target vehicle when the target vehicle confirms that the target vehicle supports turning on the thermal management of the charging pile to the vehicle battery.

[0204] In some optional embodiments, the sending module 840 is further configured to send a thermal management closing request to the target vehicle, where the thermal management closing request is used to request the target vehicle to close the vehicle thermal management function.

[0205] The apparatus further includes:

[0206] The receiving module 850 is configured to receive a closing confirmation message of the target vehicle, where the closing confirmation message is used to indicate that the target vehicle has closed the vehicle thermal management function.

[0207] In some optional embodiments, the apparatus further includes:

[0208] The detection module 860 is configured to detect a battery state of the vehicle battery.

[0209] The sending module 840 is further configured to send an unlocking instruction to the target vehicle when the battery state meets a specified state requirement, where the unlocking instruction is used to instruct to disconnect the thermal management of the target vehicle; and the target vehicle is configured to, after receiving the unlocking instruction, detect a battery temperature of the vehicle battery, and turn on the vehicle thermal management function according to the detected battery temperature.

[0210] In some optional embodiments, the sending module 840 is further configured to send the unlocking instruction to the target vehicle when the battery state indicates that the vehicle battery is in a full-charge state; or send the unlocking instruction to the target vehicle when the battery state indicates that the battery temperature of the vehicle battery meets a vehicle thermal management strategy of the target vehicle; or send the unlocking instruction to the target vehicle when it is detected that the vehicle battery is disconnected.

[0211] 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 a cooling pipeline, and the cooling liquid is transported to the target vehicle through the cooling pipeline.

[0212] The cooling pipeline comprises an inlet pipeline and an outlet pipeline, the inlet pipeline is used for delivering cooling liquid to the vehicle battery, and the outlet pipeline is used for returning cooling liquid to the charging pile to form a loop;

[0213] 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;

[0214] When the charging cable comprises 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 comprises 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.

[0215] It should be noted that the heat management device for a vehicle during a charging process provided in the above embodiments is only used as an example for the division of the above functional modules, and in actual applications, 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 heat management device for a vehicle during a charging process and the heat management method for a vehicle during a charging process provided in the above embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be described here.

[0216] FIG. 10 shows a structural block diagram of a charging pile 1000 provided in an example embodiment of the present application. The processing module in the charging pile 1000 comprises a processor 1001 and a memory 1002.

[0217] The processor 1001 can include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. 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), and the like. The processor 1001 can also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a central processing unit (CPU), and 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 content required to be displayed on the display screen. In some embodiments, the processor 1001 can further include an artificial intelligence (AI) processor for processing machine learning related computing operations.

[0218] The memory 1002 can include one or more computer-readable storage media that can be non-transitory. The memory 1002 can also include a high-speed random access memory, and a nonvolatile 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 method of thermal management of the vehicle during the charging process provided by the method embodiment of the present application.

[0219] Illustratively, the charging pile 1000 further includes other components 1003, and those skilled in the art can understand that the structure shown in FIG. 9 does not constitute a limitation on the charging pile 1000, and can include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0220] 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.

[0221] 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.

[0222] 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.

[0223] 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, the method being performed by a charging pile, the method comprising: When the charging gun of the charging pile is connected to the target vehicle, control the target vehicle to turn off the vehicle thermal management function, which is the function mode in 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 of claim 1, wherein, 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 of claim 2, wherein, 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, wherein, When the charging gun of the charging pile is connected to the target vehicle, controlling the target vehicle to turn off its thermal management function includes: When the charging gun is detected to be 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 system controls the target vehicle 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.

5. The method of claim 4, wherein, 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.

6. The method according to any one of claims 1 to 3, wherein, 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.

7. The method of claim 6, wherein, The sending of the unlocking instruction to the target vehicle when the battery status meets the specified state requirement comprises: sending the unlocking instruction to the target vehicle when the battery status indicates that the vehicle battery is in a full charge state; or, sending the unlocking instruction to the target vehicle when the battery status indicates that the battery temperature of the vehicle battery meets the vehicle thermal management strategy of the target vehicle; or, sending the unlocking instruction to the target vehicle when it is detected that the vehicle battery is disconnected.

8. The method according to any one of claims 1 to 3, wherein, The charging pile is connected to the target vehicle through a charging cable and the charging gun, and the charging cable and the charging gun are provided with cooling pipelines through which cooling liquid is transported to the target vehicle; The cooling pipelines comprise an inlet pipeline and an outlet pipeline, the inlet pipeline being used to transport cooling liquid to the vehicle battery, and the outlet pipeline being used to transport cooling liquid back to the charging pile to form a loop; 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; When the charging cable comprises 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 comprises 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.

9. A thermal management device for a vehicle during charging, the device comprising: a first control module configured to control the target vehicle to turn off a vehicle thermal management function when the charging gun of the charging pile is connected to the target vehicle, the vehicle thermal management function being a function mode in which the target vehicle performs thermal management on itself; an acquisition module configured to acquire battery temperature information of a vehicle battery of the target vehicle; a second control module configured to control the charging gun to transport 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.

10. A charging pile, comprising a charging gun, a processor and a memory, the memory storing at least one program, the at least one program being loaded and executed by the processor to implement the method for thermal management of a vehicle during charging according to any one of claims 1 to 8.

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