Methods, devices and vehicles for controlling liquid temperature

Abstract

This invention discloses a method, device, and vehicle for controlling liquid temperature, relating to the field of vehicle charging. The method includes: responding to a preset operation performed on the vehicle, determining whether to activate a temperature control function based on the temperature of a first liquid inside the vehicle, wherein the preset operation controls the vehicle to enter a charging preparation state, and the temperature control function controls the temperature of a second liquid inside the charging pile; responding to activating the temperature control function, controlling the temperature of the second liquid to reach a preset temperature; responding to the vehicle entering the charging state, controlling the first liquid to flow from the vehicle into the charging pile, and the second liquid to flow from the charging pile into the vehicle, until the temperature of the first liquid reaches the preset temperature. This invention solves the technical problem of high cost in fast vehicle charging in related technologies.

Description

Technical Field

[0001] This invention relates to the field of vehicle charging, and more specifically, to a method, apparatus, and vehicle for controlling liquid temperature. Background Technology

[0002] The charging issue of new energy vehicles has attracted much attention from users. The current relevant technologies mainly involve setting up rechargeable battery packs on the vehicle, and setting up battery swapping stations with battery swapping devices, charging tanks, and battery tanks. When the vehicle needs to replenish its power, it can drive into the swapping station to replace the depleted battery with a fully charged battery, thus completing the rapid replenishment of the vehicle's power. However, this method is costly and puts a lot of pressure on both users and manufacturers.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides a method, apparatus, and vehicle for controlling liquid temperature, thereby addressing at least the technical problem of high cost in fast charging of vehicles in related technologies.

[0005] According to one aspect of the present invention, a method for controlling liquid temperature is provided, comprising: in response to performing a preset operation on a vehicle, determining whether to activate a temperature control function based on the temperature of a first liquid inside the vehicle, wherein the preset operation is used to control the vehicle to enter a charging preparation state, and the temperature control function is used to control the temperature of a second liquid inside a charging pile; in response to activating the temperature control function, controlling the temperature of the second liquid to reach a preset temperature; in response to the vehicle entering a charging state, controlling the first liquid to enter the charging pile from the vehicle, and the second liquid to enter the vehicle from the charging pile, until the temperature of the first liquid reaches the preset temperature.

[0006] Optionally, in response to the target user performing a preset operation, determining whether to activate the temperature control function includes: obtaining the target temperature corresponding to the temperature of the first liquid, wherein the target temperature includes at least one of the following: the vehicle's battery temperature, the current ambient temperature; comparing the temperature of the first liquid with the target temperature to determine whether to activate the temperature control function.

[0007] Optionally, the temperature of the first liquid is compared with the target temperature to determine whether to activate the temperature control function, including: determining the difference between the temperature of the first liquid and the target temperature; confirming that the temperature control function is not activated if the difference is within a first preset range; and confirming that the temperature control function is activated if the difference is not within the first preset range.

[0008] Optionally, after confirming the activation of the temperature control function, the method further includes: sending a target command and a preset temperature to the charging pile, wherein the target command is used to instruct the charging pile to control the temperature of the first liquid to the preset temperature.

[0009] Optionally, after confirming that the temperature control function is not activated, the method further includes: in response to the vehicle's charging port being connected to the charging gun of the charging station, controlling the vehicle to enter the charging state, and controlling the charging station to charge the vehicle.

[0010] Optionally, the above method further includes: in response to the vehicle's charging port being connected to the charging gun of the charging pile, determining that the vehicle has entered the charging state, and controlling the charging pile to charge the vehicle.

[0011] Optionally, the above method further includes: determining that the vehicle has entered a non-charging state in response to the disconnection of the charging port and the charging gun.

[0012] Optionally, before the vehicle enters the charging state, the above method further includes: controlling the temperature of the first liquid within a second preset range.

[0013] According to another aspect of the present invention, a liquid temperature control device is also provided, characterized in that the method further includes: a function judgment module, configured to determine whether to activate a temperature control function based on the temperature of a first liquid inside the vehicle in response to performing a preset operation on the vehicle, wherein the preset operation is used to control the vehicle to enter a charging preparation state, and the temperature control function is used to control the temperature of a second liquid inside the charging pile; a temperature control module, configured to control the temperature of the second liquid to reach a preset temperature in response to activating the temperature control function; and a liquid control module, configured to control the first liquid to enter the charging pile from the vehicle and the second liquid to enter the vehicle from the charging pile in response to the vehicle entering the charging state, until the temperature of the first liquid reaches the preset temperature.

[0014] According to another aspect of the present invention, a vehicle is also provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform any of the methods described above.

[0015] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to perform the above-described vehicle abnormality detection method.

[0016] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes the above-described vehicle anomaly detection method during runtime.

[0017] In this embodiment of the invention, in response to performing a preset operation on the vehicle, a temperature control function is determined based on the temperature of the first liquid inside the vehicle. The preset operation controls the vehicle to enter a charging preparation state. In response to activating the temperature control function, the temperature of the second liquid is controlled to reach a preset temperature. In response to the vehicle entering the charging state, the first liquid is controlled to enter the charging pile from the vehicle, and the second liquid is controlled to enter the vehicle from the charging pile, until the temperature of the first liquid reaches the preset temperature. It is noteworthy that, through the above method, if the temperature of the first liquid needs to be controlled after the vehicle enters the charging preparation state, the temperature of the second liquid is controlled to reach the preset temperature before the vehicle arrives at the charging pile. After the vehicle enters the charging state, the first liquid is replaced by the second liquid, thereby saving time in controlling the temperature of the first liquid, improving charging efficiency, and eliminating the need for users and manufacturers to prepare spare batteries. This achieves the goal of saving costs while improving charging efficiency, thus solving the technical problem of high cost for fast charging of vehicles in related technologies. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a flowchart of a liquid temperature control method according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of a liquid temperature control system according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a scheduled charging information interaction according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of a liquid temperature control device according to an embodiment of the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] Example 1

[0026] According to an embodiment of the present invention, a method for controlling liquid temperature is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0027] Figure 1 This is a flowchart of a liquid temperature control method according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0028] Step S102: In response to performing a preset operation on the vehicle, determine whether to activate the temperature control function based on the temperature of the first liquid inside the vehicle. The preset operation is used to control the vehicle to enter the charging preparation state, and the temperature control function is used to control the temperature of the second liquid inside the charging pile.

[0029] Among them, the preset operation can be understood as the operation of controlling the vehicle to enter the charging preparation state, the first liquid can be understood as the coolant in the vehicle, the second liquid can be understood as the coolant in the charging pile, and the temperature control function can be understood as the function of controlling the temperature of the coolant in the charging pile.

[0030] In one optional embodiment, the preset operation can be an operation performed by the user. For example, when the vehicle's battery is low, the vehicle prompts the user to choose whether to charge the vehicle. When the user chooses to charge, it can be considered that the user has performed the preset operation. The preset operation can also be an operation performed by the vehicle's charging control system. For example, when the vehicle's battery is low, the charging control system automatically enters the charging preparation state.

[0031] In another alternative embodiment, the vehicle prompts the user to choose whether to charge the vehicle. This can be done by displaying a prompt box on the vehicle's central control screen, prompting the user to choose whether to charge the vehicle in text form. For example, the prompt box may display "The vehicle's current battery level is: XX, please select whether to charge the vehicle." Alternatively, the vehicle's voice broadcast system may prompt the user to choose whether to charge the vehicle, for example, by broadcasting "The vehicle's current battery level is: XX, please select whether to charge the vehicle."

[0032] Specifically, when the battery level is below a certain threshold, the vehicle's battery is considered insufficient. This threshold can be a fixed threshold, such as 20%, or a user-defined threshold that can be modified according to actual needs. Alternatively, the vehicle navigation system can calculate the required battery level based on the vehicle's current distance from the destination, and this calculated battery level is the aforementioned threshold. If the vehicle's remaining battery level is less than or equal to this threshold, the user is reminded to charge the vehicle.

[0033] It should be noted that the coolant in the embodiments of the present invention can refer to the coolant in the battery or the coolant in the engine. Taking the coolant in the battery as an example, since the drive system of new energy vehicles generally adopts a combination of air cooling and liquid cooling to ensure the safe operation of the entire system, the liquid cooling system relies on cooling water to drive the coolant to circulate in the cooling pipes. Through heat exchange processes such as the radiator, the coolant carries away the heat generated by the motor and controller. The coolant plays a very important role in the entire cooling system. Compared with the triple protection of corrosion prevention, overheating prevention and frost prevention of fuel vehicles, the power system of new energy vehicles also requires the coolant to be explosion-proof.

[0034] It is understandable that coolant is used for heat dissipation and explosion prevention during the charging process of new energy vehicles. In addition, coolant can reduce resistance and improve conductivity during heat dissipation, thereby increasing the charging rate. Therefore, during the charging process of new energy vehicles, it is necessary to control the temperature of the coolant within a suitable range in order to improve the charging rate and ensure the safe operation of the entire system.

[0035] It should be noted that the above-mentioned charging pile can refer to a single charging pile or multiple charging piles. For example, when a user uses a navigation system to go to a charging station, the system can remind the user to select one or more charging piles within that charging station to activate the temperature control function.

[0036] Step S104: In response to activating the temperature control function, the temperature of the second liquid is controlled to reach the preset temperature.

[0037] The preset temperature can be understood as a pre-set temperature that allows the vehicle to directly enter the charging state without preheating or cooling. This preset temperature can be adjusted according to changes in the ambient temperature and is not a fixed value.

[0038] In one alternative embodiment, the temperature control function can be activated by a thermal management system installed in the charging pile to control the temperature of the second liquid to reach a preset temperature.

[0039] The aforementioned thermal management system is installed inside the charging pile, enabling high-power heating and cooling. Furthermore, by connecting the charging pile's thermal management system to the vehicle's thermal management system, the vehicle's power battery and coolant can quickly reach the preset temperature, saving charging time.

[0040] Specifically, Figure 2 This is a schematic diagram of a liquid temperature control system according to an embodiment of the present invention, as shown below. Figure 2 As shown, the system consists of two parts: the pile end and the vehicle end. The thermal management system at the pile end is connected to the power battery at the vehicle end through a thermal management circuit, through which coolant flows between the two. The high-voltage module (charging module) at the pile end is connected to the power battery at the vehicle end through a high-voltage circuit, through which high-voltage electrical energy is delivered to the vehicle end. The pile end control module at the pile end is connected to the vehicle control module at the vehicle end through a low-voltage control circuit, through which signal interaction between the vehicle end and the pile end is realized.

[0041] In another alternative embodiment, a temperature sensor can be used to determine whether the current temperature of the second liquid has reached a preset temperature.

[0042] Understandably, once the temperature control function is activated, the temperature of the second liquid is immediately controlled to reach the preset temperature. This allows the temperature of the second liquid to be kept at a suitable level before the vehicle arrives at the charging station, saving users' waiting time and improving the charging rate.

[0043] In step S106, in response to the vehicle entering the charging state, the first liquid is controlled to enter the charging pile from the vehicle, and the second liquid is controlled to enter the vehicle from the charging pile until the temperature of the first liquid reaches the preset temperature.

[0044] The charging status can be understood as the state in which the vehicle has started charging.

[0045] Understandably, once the vehicle arrives at the charging station and begins charging, the pre-temperature-controlled second fluid enters the vehicle, while the vehicle's coolant simultaneously flows into the charging pile. This replaces the vehicle's coolant with the pre-temperature-controlled coolant in the charging pile, allowing the vehicle's coolant to quickly reach the preset temperature. This saves time during the coolant's temperature rise process, significantly reducing charging time and improving charging efficiency. Furthermore, the high-power thermal management system at the charging pile provides greater heating power, ensuring the vehicle's battery and charging system remain within their optimal operating temperature range during charging.

[0046] In one alternative embodiment, the replacement process between the first liquid and the second liquid can be achieved by a thermal management loop between the thermal management system at the pile end and the power battery at the vehicle end.

[0047] In another alternative embodiment, a temperature sensor can be used to determine whether the temperature of the first liquid has reached a preset temperature.

[0048] Through the above steps, in response to performing a preset operation on the vehicle, based on the temperature of the first liquid inside the vehicle, it is determined whether to activate the temperature control function. The preset operation controls the vehicle to enter the charging preparation state. In response to activating the temperature control function, the temperature of the second liquid is controlled to reach the preset temperature. In response to the vehicle entering the charging state, the first liquid is controlled to enter the charging station from the vehicle, and the second liquid is controlled to enter the vehicle from the charging station, until the temperature of the first liquid reaches the preset temperature. It is noteworthy that, through this method, if the temperature of the first liquid needs to be controlled after the vehicle enters the charging preparation state, the temperature of the second liquid is controlled to reach the preset temperature before the vehicle arrives at the charging station. After the vehicle enters the charging state, the first liquid is replaced by the second liquid, thus saving time in controlling the temperature of the first liquid, improving charging efficiency, and eliminating the need for users and manufacturers to prepare spare batteries. This achieves the goal of saving costs while improving charging efficiency, thereby solving the technical problem of high cost in related technologies for fast vehicle charging.

[0049] Optionally, in response to the target user performing a preset operation, determining whether to activate the temperature control function includes: obtaining the target temperature corresponding to the temperature of the first liquid, wherein the target temperature includes at least one of the following: the vehicle's battery temperature and the current ambient temperature; comparing the temperature of the first liquid with the target temperature to determine whether to activate the temperature control function.

[0050] The target temperature can be understood as a temperature parameter that corresponds to the temperature of the first liquid and will affect the temperature of the first liquid. It can include the vehicle's battery temperature and the current ambient temperature. The vehicle's battery temperature can be understood as the temperature of the surface of the vehicle's battery, and the current ambient temperature can be understood as the current temperature of the external environment of the vehicle.

[0051] In one alternative embodiment, the vehicle's battery temperature can be obtained using a temperature sensor located inside the vehicle, while the current ambient temperature can be obtained using a temperature sensor located outside the vehicle.

[0052] Understandably, the temperature of the vehicle battery surface and the current temperature of the external environment can affect the temperature of the coolant inside the battery. Therefore, it is necessary to consider the temperature of the first coolant, the vehicle battery temperature, and the current ambient temperature to comprehensively determine whether the temperature control function needs to be activated. By comprehensively considering whether the temperature control function needs to be activated using the above method, errors caused by relying solely on the temperature of the first coolant to determine whether to activate the temperature control function can be avoided, improving the accuracy of the temperature control function and saving unnecessary energy waste.

[0053] Optionally, the temperature of the first liquid is compared with the target temperature to determine whether to activate the temperature control function, including: determining the difference between the temperature of the first liquid and the target temperature; confirming that the preheating function is not activated if the difference is within a first preset range; and confirming that the temperature control function is activated if the difference is not within the first preset range.

[0054] The first preset range can be a suitable range of the difference between the temperature of the first liquid and the target temperature, for example, it can be 0-5℃. When the difference is 0℃, it can be considered that the temperature of the first liquid is a very suitable temperature of coolant and will not affect the charging rate at all. When the difference is 3℃, it can be considered that the temperature of the first liquid is a suitable temperature of coolant and will not affect the charging rate. When the difference is 5℃, it can be considered that the temperature of the first liquid is a relatively suitable temperature of coolant and will basically not affect the charging rate. The specific value can be modified according to actual needs, and the present invention does not limit it.

[0055] In an alternative embodiment, the difference can be obtained by calculating the difference between the temperature of the first liquid and the target temperature.

[0056] Understandably, if the temperature difference is within the first preset range, meaning the difference between the temperature of the first liquid and the target temperature is small, it can be considered that the temperature of the first liquid is suitable for charging and will not affect the vehicle's charging rate. In this case, there is no need to activate the temperature control function, and the vehicle can directly enter the charging state after arriving at the charging station without needing to replace the coolant in the vehicle with the coolant in the charging station. If the temperature difference is not within the first preset range, it can be considered that the temperature of the first liquid is not suitable for charging and will affect the vehicle's charging rate. In this case, the temperature control function needs to be activated to control the coolant in the charging station to the preset temperature in advance. After the vehicle arrives at the charging station, the coolant in the vehicle and the coolant in the charging station need to be replaced. This achieves the goal of saving the coolant temperature rise process, significantly reducing charging time, and improving charging efficiency.

[0057] Optionally, after confirming the activation of the temperature control function, the above method further includes: sending a target command and a preset temperature to the charging pile, wherein the target command is used to instruct the charging pile to control the temperature of the first liquid to the preset temperature.

[0058] The target instruction can be understood as an instruction to activate the temperature control function of the charging pile.

[0059] In one optional embodiment, the target instruction can be sent from the vehicle's control system to the charging pile. After receiving the target instruction, the charging pile immediately controls the temperature of the liquid inside the charging pile, i.e., the second liquid, according to the preset temperature in the instruction, until the temperature of the second liquid reaches the preset temperature.

[0060] Optionally, after confirming that the temperature control function is not activated, the method further includes: in response to the vehicle's charging port being connected to the charging gun of the charging station, controlling the vehicle to enter the charging state, and controlling the charging station to charge the vehicle.

[0061] Specifically, after confirming that the temperature control function will not be activated, there is no need to control the temperature of the coolant in the charging station, and the vehicle can start charging directly after arriving at the charging station.

[0062] Understandably, once the vehicle's charging port is connected to the charging gun of the charging station, the vehicle is considered ready to enter the charging state. At this point, the vehicle can be controlled to enter the charging state, and the charging station can be controlled to charge the vehicle.

[0063] Optionally, the above method further includes: in response to the vehicle's charging port being connected to the charging gun of the charging pile, determining that the vehicle has entered the charging state, and controlling the charging pile to charge the vehicle.

[0064] Understandably, once the vehicle's charging port is connected to the charging gun of the charging station, the vehicle is considered ready to enter the charging state. At this point, the vehicle can be controlled to enter the charging state, and the charging station can be controlled to charge the vehicle.

[0065] Optionally, the above method further includes: confirming that the vehicle has entered a non-charging state in response to the disconnection of the charging port and the charging gun.

[0066] It is understandable that when the vehicle's charging port is disconnected from the charging gun of the charging station, it can be assumed that the vehicle does not need to continue charging, and the vehicle can be confirmed to have entered a non-charging state.

[0067] Optionally, before the vehicle enters the charging state, the method further includes: controlling the temperature of the first liquid within a second preset range.

[0068] The second preset range can be understood as a pre-set temperature range of coolant that will not affect the vehicle's charging efficiency. This preset range can also be determined based on the vehicle's battery temperature and the current ambient temperature. Its specific value can be modified according to actual needs, and this invention does not limit it.

[0069] It is understandable that before the vehicle arrives at the charging station and enters the charging state, the charging station can keep the temperature of the second liquid at a certain level and control it within a certain preset range. This is to avoid the situation where the temperature of the second liquid changes after the vehicle arrives at the charging station and needs to be re-controlled.

[0070] Figure 3 This is a schematic diagram of a scheduled charging information interaction according to an embodiment of the present invention, such as... Figure 3 As shown, the interaction of scheduled charging information occurs between the vehicle and the charging pile. The process on the vehicle side includes: activating the scheduled charging function; determining whether to activate temperature control based on coolant temperature and target temperature; if not, charging begins upon arrival at the charging pile; if activation is required, sending the target command and preset temperature to the charging pile. The process on the charging pile side includes: receiving the target command; the thermal management system heating the coolant; determining if the coolant temperature has reached the preset temperature; if not, continuing heating; if reached, checking if the charging gun is connected; if not, maintaining coolant temperature; if connected, exchanging signals between the charging pile and vehicle control modules; determining if heating or cooling is needed; if not, charging begins directly and ends upon reaching the target charging requirement; if needed, the charging pile's thermal management module provides cooling or heating to the vehicle, then checks if the preset temperature has been reached; if not, continuing cooling or heating; if the preset temperature has been reached, charging begins and ends upon reaching the target charging requirement.

[0071] Example 2

[0072] According to another aspect of the present invention, a liquid temperature control device is also provided. This device can execute the liquid temperature control method in Embodiment 1 above. The specific implementation scheme and application scenario in this embodiment are the same as those in Embodiment 1 above, and will not be repeated here.

[0073] Figure 4 This is a schematic diagram of a liquid temperature control device according to an embodiment of the present invention, such as... Figure 4 As shown, the device includes: a function judgment module 402, used to determine whether to activate the temperature control function based on the temperature of the first liquid inside the vehicle in response to performing a preset operation on the vehicle, wherein the preset operation is used to control the vehicle to enter the charging preparation state, and the temperature control function is used to control the temperature of the second liquid inside the charging pile; a temperature control module 404, used to control the temperature of the second liquid to reach the preset temperature in response to activating the temperature control function; and a liquid control module 406, used to control the first liquid to enter the charging pile from the vehicle and the second liquid to enter the vehicle from the charging pile in response to the vehicle entering the charging state, until the temperature of the first liquid reaches the preset temperature.

[0074] The function judgment module 402 includes: a temperature acquisition unit, used to acquire the target temperature corresponding to the temperature of the first liquid, wherein the target temperature includes at least one of the following: the vehicle's battery temperature and the current ambient temperature; and a temperature comparison unit, used to compare the temperature of the first liquid with the target temperature to determine whether to activate the temperature control function.

[0075] The temperature comparison unit includes: a difference determination unit for determining the difference between the temperature of the first liquid and the target temperature; a first confirmation unit for confirming that the temperature control function is not activated in response to the difference being within a first preset range; and a second confirmation unit for confirming that the temperature control function is activated in response to the difference not being within the first preset range.

[0076] After confirming the activation of the temperature control function, the above device also includes: an instruction sending module, used to send a target instruction and a preset temperature to the charging pile, wherein the target instruction is used to instruct the charging pile to control the temperature of the first liquid to the preset temperature.

[0077] After confirming that the temperature control function is not activated, the above device also includes: a status control module, which is used to control the vehicle to enter the charging state and control the charging pile to charge the vehicle in response to the connection between the vehicle's charging port and the charging gun of the charging pile.

[0078] The aforementioned device further includes: a vehicle charging module, used to determine that the vehicle has entered a charging state in response to the connection between the vehicle's charging port and the charging gun of the charging station, and to control the charging station to charge the vehicle; and a state determination module, used to confirm that the vehicle has entered a non-charging state in response to the disconnection between the charging port and the charging gun.

[0079] Before the vehicle enters the charging state, the above device also includes a control module for controlling the temperature of the first liquid within a second preset range.

[0080] Example 3

[0081] According to another aspect of the present invention, a vehicle is also provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform any of the methods described above.

[0082] Example 4

[0083] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to perform the above-described liquid temperature control method.

[0084] Example 5

[0085] According to another aspect of the present invention, a processor is also provided, which is used to run a program, wherein the program executes the above-described liquid temperature control method during operation.

[0086] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0087] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0089] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0090] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0091] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0092] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method of controlling the temperature of a liquid, characterized by, The method comprises: in response to performing a preset operation on the vehicle, determining whether to start a temperature control function based on the temperature of a first liquid in the vehicle, wherein the preset operation is used to control the vehicle to enter a charging preparation state, and the temperature control function is used to control the temperature of a second liquid in a charging pile; in response to starting the temperature control function, controlling the temperature of the second liquid to reach a preset temperature; in response to the vehicle entering a charging state, controlling the first liquid to enter the charging pile from the vehicle, and the second liquid to enter the vehicle from the charging pile, until the temperature of the first liquid reaches the preset temperature; wherein, in response to performing a preset operation on the vehicle, determining whether to start a temperature control function comprises: obtaining a target temperature corresponding to the temperature of the first liquid, wherein the target temperature comprises at least one of the following: the battery temperature of the vehicle, the current ambient temperature; determining the difference between the temperature of the first liquid and the target temperature; in response to the difference being within a first preset range, confirming that the temperature control function is not started; in response to the difference not being within the first preset range, confirming that the temperature control function is started; after confirming that the temperature control function is started, the method further comprises: sending a target instruction and the preset temperature to the charging pile, wherein the target instruction is used to instruct the charging pile to control the temperature of the first liquid to be the preset temperature.

2. The liquid temperature control method according to claim 1, wherein after confirming that the temperature control function is not started, the method further comprises: in response to the charging port of the vehicle being connected with the charging gun of the charging pile, controlling the vehicle to enter a charging state, and controlling the charging pile to charge the vehicle.

3. The liquid temperature control method according to claim 1, wherein The method further comprises: in response to the charging port of the vehicle being connected with the charging gun of the charging pile, determining that the vehicle enters a charging state, and controlling the charging pile to charge the vehicle.

4. The liquid temperature control method according to claim 2 or 3, wherein The method further comprises: in response to the charging port being disconnected from the charging gun, determining that the vehicle enters a non-charging state.

5. The method of controlling the temperature of a liquid according to claim 4, wherein, Before the vehicle enters a charging state, the method further comprises: controlling the temperature of the first liquid to be within a second preset range.

6. A liquid temperature control device, characterized by, The device comprises: a function determination module configured to determine whether to start a temperature control function based on the temperature of a first liquid in the vehicle in response to performing a preset operation on the vehicle, wherein the preset operation is used to control the vehicle to enter a charging preparation state, and the temperature control function is used to control the temperature of a second liquid in a charging pile; a temperature control module configured to control the temperature of the second liquid to reach a preset temperature in response to starting the temperature control function; a liquid control module configured to control the first liquid to enter the charging pile from the vehicle, and the second liquid to enter the vehicle from the charging pile, until the temperature of the first liquid reaches the preset temperature in response to the vehicle entering a charging state. The function judging module comprises: a temperature acquisition unit, configured to acquire a target temperature corresponding to a temperature of the first liquid, wherein the target temperature comprises at least one of a battery temperature of the vehicle and a current ambient temperature; a temperature comparison unit comprising a difference determination unit, configured to determine a difference between the temperature of the first liquid and the target temperature; a first confirmation unit, configured to confirm that the temperature control function is not started in response to the difference being within a first preset range; and a second confirmation unit, configured to confirm that the temperature control function is started in response to the difference not being within the first preset range. After confirming that the temperature control function is started, the instruction sending module is configured to send a target instruction and the preset temperature to the charging pile, wherein the target instruction is used to instruct the charging pile to control the temperature of the first liquid to be the preset temperature.

7. A vehicle characterized by comprising: comprise: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 5.

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