Thermal management method and thermal management device for vehicle

Abstract

The present application provides a thermal management method and thermal management device for a vehicle, wherein the vehicle includes a battery pack, a domain controller and a cooling system, wherein the cooling system includes a battery pack cooler, a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are both used to transport coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, and a valve is provided on the second pipeline, wherein the method includes: obtaining the working state of the battery pack cooler, wherein the working state is an open state or a closed state; at least according to the working state, adjusting the opening of the valve so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack. The present application solves the problem of poor cooling effect of the battery pack in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle thermal management, and in particular, to a vehicle thermal management method, a thermal management device, a computer-readable storage medium, a processor, and a vehicle. Background Art

[0002] At present, the level of autonomous driving in high-end models is generally above L2.5, which means that more chips for realizing autonomous driving functions need to be integrated in the intelligent driving system controller. The heat power of these chips is relatively large, and ordinary air cooling designs cannot meet the heat dissipation requirements. Water cooling solutions are used for heat dissipation.

[0003] Since the domain controller (DCU) cannot request the inlet water temperature independently, most solutions currently adopt a water cooling strategy that connects the DCU and the battery pack (PACK) in parallel. In this case, the DCU will occupy the cooling capacity of the PACK. In some cases, there will be problems such as insufficient cooling of the PACK and poor heating effect of the PACK.

[0004] The above information disclosed in the background technology section is only used to enhance the understanding of the background technology of the technology described in this article. Therefore, the background technology may contain certain information that does not form the prior art known in this country for those skilled in the art. Summary of the invention

[0005] The main purpose of the present application is to provide a vehicle thermal management method, a thermal management device, a computer-readable storage medium, a processor and a vehicle to solve the problem of poor battery pack cooling effect in the prior art.

[0006] According to one aspect of an embodiment of the present invention, a thermal management method for a vehicle is provided, wherein the vehicle comprises a battery pack, a domain controller and a cooling system, wherein the cooling system comprises a battery pack cooler, a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are both used to transport a coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, and a valve is provided on the second pipeline, wherein the method comprises: obtaining a working state of the battery pack cooler, wherein the working state is an open state or a closed state; and adjusting the opening of the valve at least according to the working state, so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0007] Optionally, the opening of the valve is adjusted at least according to the working state, including: when the working state is the open state, controlling the valve to open to a first predetermined opening; when the working state is the closed state, controlling the valve to open to a second predetermined opening, wherein the second predetermined opening is greater than the first predetermined opening.

[0008] Optionally, before adjusting the opening of the valve at least according to the working state, the method further includes: acquiring a first temperature, the first temperature being data characterizing the working temperature of the domain controller; adjusting the opening of the valve at least according to the working state, including: adjusting the opening of the valve according to the working state and the first temperature.

[0009] Optionally, adjusting the opening of the valve according to the working state and the first temperature includes: when the working state is the open state and the first temperature is less than a first threshold, adjusting the opening of the valve to a third predetermined opening; when the working state is the open state and the first temperature is within a first temperature range, adjusting the opening of the valve to a fourth predetermined opening; when the working state is the open state and the first temperature is greater than a second threshold, adjusting the opening of the valve to a fifth predetermined opening, wherein the first threshold is less than or equal to the minimum value of the first temperature range, the second threshold is greater than or equal to the maximum value of the first temperature range, the third predetermined opening is less than or equal to the fourth predetermined opening, and the fourth predetermined opening is less than or equal to the fourth predetermined opening. The opening is less than or equal to the fifth predetermined opening; when the working state is the closed state and the first temperature is less than the third threshold, the opening of the valve is adjusted to the sixth predetermined opening; when the working state is the closed state and the first temperature is within the second temperature range, the opening of the valve is adjusted to the seventh predetermined opening; when the working state is the closed state and the first temperature is greater than the fourth threshold, the opening of the valve is adjusted to the eighth predetermined opening, wherein the third threshold is less than or equal to the minimum value of the second temperature range, the fourth threshold is greater than or equal to the maximum value of the second temperature range, the sixth predetermined opening is less than or equal to the seventh predetermined opening, and the seventh predetermined opening is less than or equal to the eighth predetermined opening.

[0010] Optionally, adjusting the opening of the valve according to the working state and the first temperature includes: an adjustment step, when the first temperature is not within the third temperature range, adjusting the opening of the valve according to the working state and the first temperature; an acquisition step, acquiring the adjusted first temperature; a determination step, determining whether the first temperature is within the third temperature range; and a loop step, sequentially executing the adjustment step, the acquisition step and the determination step at least once until the first temperature is within the third temperature range.

[0011] Optionally, the method also includes: obtaining a second temperature, which is data characterizing the operating temperature of the battery pack; controlling the operating state of the battery pack cooler according to the second temperature, and when the second temperature is greater than a fifth threshold, controlling the battery pack cooler to be turned on, and when the second temperature is less than or equal to the fifth threshold, controlling the battery pack cooler to be turned off.

[0012] According to another aspect of an embodiment of the present invention, a thermal management device for a vehicle is also provided, the vehicle comprising a battery pack, a domain controller and a cooling system, the cooling system comprising a battery pack cooler, a first pipeline and a second pipeline, the first pipeline and the second pipeline are both used to transport coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, and a valve is provided on the second pipeline, the device comprises: obtaining a working state of the battery pack cooler, the working state being an open state or a closed state; at least according to the working state, adjusting the opening of the valve so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0013] According to yet another aspect of the embodiments of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein the program executes any one of the methods described.

[0014] According to yet another aspect of an embodiment of the present invention, a processor is provided, wherein the processor is used to run a program, wherein any one of the methods is executed when the program is run.

[0015] According to another aspect of an embodiment of the present invention, a vehicle is further provided, the vehicle comprising a battery pack, a domain controller and a cooling system, the cooling system comprising a battery pack cooler, a first pipeline and a second pipeline, the first pipeline and the second pipeline are both used to transport coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, a valve is provided on the second pipeline, the vehicle also includes: a control device for the cooling system, comprising one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the methods described.

[0016] In the thermal management method of the vehicle of the present application, first, the working state of the battery pack cooler is obtained, and then, according to the working state, the opening of the valve is adjusted so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack. Compared with the cooling and heat dissipation strategy of the battery pack and the domain controller in parallel in the prior art, the coolant will flow to the pipeline where the domain controller is located and the pipeline where the battery pack is located, resulting in the problem of poor cooling effect of the battery pack. According to the working state of the battery pack cooler, the present application adjusts the valve opening to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, ensuring that the battery pack can work in a suitable temperature range. And the present application does not need to request the inlet water temperature. The inlet temperature at this time (i.e., the temperature of the coolant flowing into the first pipe and the second pipe) is determined based on whether the battery pack cooler is working. That is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is a fixed temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A schematic diagram of a thermal management structure of a vehicle according to an embodiment of the present application is shown;

[0019] Figure 2A schematic flow chart of a thermal management method for a vehicle according to an embodiment of the present application is shown;

[0020] Figure 3 A schematic diagram of a thermal management device for a vehicle according to an embodiment of the present application is shown.

[0021] The above drawings include the following reference numerals:

[0022] 100. Battery pack; 101. Domain controller; 102. First pipeline; 103. Second pipeline; 104. Valve. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intermediate elements. Moreover, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.

[0027] As mentioned in the background technology, the battery pack cooling effect in the prior art is not good. In order to solve the above problem, in a typical embodiment of the present application, a vehicle thermal management method, a thermal management device, a computer-readable storage medium, a processor and a vehicle are provided.

[0028] According to an embodiment of the present application, a vehicle thermal management method is provided, such as Figure 1 As shown, the vehicle includes a battery pack 100, a domain controller 101 and a cooling system, the cooling system includes a battery pack cooler (not shown in the figure), a first pipeline 102 and a second pipeline 103, the first pipeline 102 and the second pipeline 103 are both used to transport coolant, the battery pack cooler and the battery pack 100 are respectively located on the first pipeline 102, the second pipeline 103 is connected in parallel to the first pipeline 102 at both ends of the battery pack 100, the domain controller 101 is located on the second pipeline 103, and the second pipeline 103 is provided with a valve 104.

[0029] Figure 2 FIG. 1 is a flow chart of a thermal management method for a vehicle according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0030] Step S101, obtaining the working state of the battery pack cooler, the working state being an on state or an off state;

[0031] Step S102, at least according to the working state, adjust the opening of the valve so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0032] In the thermal management method of the vehicle of the present application, first, the working state of the battery pack cooler is obtained, and then, according to the working state, the opening of the valve is adjusted so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack. Compared with the cooling and heat dissipation strategy of the battery pack and the domain controller in parallel in the prior art, the coolant will flow to the pipeline where the domain controller is located and the pipeline where the battery pack is located, resulting in the problem of poor cooling effect of the battery pack. According to the working state of the battery pack cooler, the present application adjusts the valve opening to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, ensuring that the battery pack can work in a suitable temperature range. And the present application does not need to request the inlet water temperature. The inlet temperature at this time (i.e., the temperature of the coolant flowing into the first pipe and the second pipe) is determined based on whether the battery pack cooler is working. That is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0033] In actual application, vehicles generally have two cooling modes. One is that the coolant dissipates heat through the radiator at the front end of the vehicle. At this time, the coolant temperature ≈ the ambient temperature, which is suitable for normal temperature or low temperature use environment; the other is that the coolant exchanges heat through the vehicle's battery pack cooler (Chiller), which can obtain a lower coolant temperature. Generally, the coolant temperature is ≈20°C, which is suitable for high temperature use environment. That is to say, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is 20°C.

[0034] In order to further ensure that the battery pack operates within a suitable temperature range, according to another specific embodiment of the present application, the opening of the valve is adjusted at least according to the above working state, including: when the above working state is the above open state, the valve is controlled to open to the first predetermined opening; when the above working state is the above closed state, the valve is controlled to open to the second predetermined opening, wherein the second predetermined opening is greater than the first predetermined opening. When the above working state is the above open state, it means that the operating temperature of the battery pack is relatively high and a large amount of coolant is required. At this time, the valve is opened to a smaller first predetermined opening, so that the flow rate of the coolant in the second pipeline where the domain controller is located is relatively small, and most of the coolant flows to the first pipeline where the battery pack is located, so as to cool down the battery pack, and further ensure a better cooling effect of the battery pack. When the working state is the closed state, it means that the working temperature of the battery pack is not very high and the required amount of coolant is small. At this time, the valve is opened to a larger second predetermined opening, so that the flow rate of the coolant in the second pipeline where the domain controller is located is larger, thereby ensuring the cooling effect of the battery pack and further ensuring a better cooling effect on the domain controller.

[0035] According to another specific embodiment of the present application, before adjusting the opening of the valve at least according to the working state, the method further includes: obtaining a first temperature, the first temperature being data representing the working temperature of the domain controller; adjusting the opening of the valve at least according to the working state, including: adjusting the opening of the valve according to the working state and the first temperature. In this embodiment, the opening of the valve is adjusted according to the first temperature representing the working temperature of the domain controller and the working state, which further takes into account the cooling effect of the battery pack and the cooling effect of the domain controller.

[0036] Specifically, obtaining the first temperature includes: obtaining the temperature reported by TAD4 (a chip representing the OIB temperature). Since the main heat source in the domain controller is TAD4, the temperature reported by TAD4 is used as the operating temperature of the entire domain controller, which ensures that the above-mentioned first temperature can be obtained relatively simply and conveniently. The present application not only adjusts the valve opening by the working status of the chiller, but also adjusts the valve opening by taking into account the temperature of the domain controller, further ensuring that the battery pack can operate within a suitable temperature range, and further ensuring that the domain controller can operate within a suitable temperature range.

[0037] In order to further ensure that the cooling effect of the above-mentioned battery pack and the above-mentioned domain controller is good, according to another specific embodiment of the present application, according to the above-mentioned working state and the above-mentioned first temperature, the opening of the above-mentioned valve is adjusted, including: when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is less than the first threshold value, the opening of the above-mentioned valve is adjusted to a third predetermined opening; when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is within the first temperature range, the opening of the above-mentioned valve is adjusted to a fourth predetermined opening; when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is greater than the second threshold value, the opening of the above-mentioned valve is adjusted to a fifth predetermined opening, wherein the above-mentioned first threshold value is less than or equal to the minimum value of the above-mentioned first temperature range, the above-mentioned second threshold value is greater than or equal to the maximum value of the above-mentioned first temperature range, and the above-mentioned third predetermined opening degree is greater than or equal to the maximum value of the above-mentioned first temperature range. is less than or equal to the fourth predetermined opening, and the fourth predetermined opening is less than or equal to the fifth predetermined opening; when the working state is the closed state and the first temperature is less than the third threshold value, the opening of the valve is adjusted to the sixth predetermined opening; when the working state is the closed state and the first temperature is within the second temperature range, the opening of the valve is adjusted to the seventh predetermined opening; when the working state is the closed state and the first temperature is greater than the fourth threshold value, the opening of the valve is adjusted to the eighth predetermined opening, wherein the third threshold value is less than or equal to the minimum value of the second temperature range, the fourth threshold value is greater than or equal to the maximum value of the second temperature range, the sixth predetermined opening is less than or equal to the seventh predetermined opening, and the seventh predetermined opening is less than or equal to the eighth predetermined opening.

[0038] In a specific embodiment, the first threshold is 50°C, the first temperature range is 65-105°C, the second threshold is , the third threshold is 50°C, the second temperature range is 62-80°C, the fourth threshold is 80°C, the third predetermined opening is 0, the fourth predetermined opening is 1L / min, the fifth predetermined opening is 3L / min, the sixth predetermined opening is 0, the seventh predetermined opening is 1L / min, and the eighth predetermined opening is 3L / min. Of course, the values ​​of the above parameters are not limited to the above values, and those skilled in the art can flexibly set them according to actual conditions. The above adjustment gear for the opening of the valve is also not limited to the above third predetermined opening, the fourth predetermined opening, the fifth predetermined opening, the sixth predetermined opening, the seventh predetermined opening and the eighth predetermined opening. Those skilled in the art can set the number of gears according to actual needs, such as only setting the above third predetermined opening, the fourth predetermined opening, and the fifth predetermined opening, or in addition to the above gears, adding the ninth predetermined gear, the tenth predetermined gear, and so on.

[0039] According to another specific embodiment of the present application, the opening of the above-mentioned valve is adjusted at least according to the above-mentioned working state, including: adjusting the opening of the above-mentioned valve according to the first temperature of the domain controller and at least one of the temperature limit ratio of the above-mentioned domain controller, the working state of the battery pack cooler and the current state of the domain controller.

[0040] Specifically, according to the working state of the battery pack cooler, the current state of the domain controller, the first temperature of the domain controller and the temperature limit ratio, the specific reference parameters for controlling the opening of the above-mentioned valve are shown in Table 1, wherein the current state of the domain controller is divided into back-shift cooling and request cooling. When the battery pack cooler is in the on state, the back-shift cooling of the domain controller includes no cooling, high-speed cooling gear ① and high-speed cooling gear ②, and the request cooling of the domain controller includes high-speed cooling gear ① and high-speed cooling gear ②; when the battery pack cooler is in the off state, the back-shift cooling of the domain controller includes no cooling, low-speed cooling gear ① and low-speed cooling gear ②, and the request cooling includes low-speed cooling gear ① and low-speed cooling gear ②. The temperature limit ratio of the domain controller is the ratio of the temperature reported by TAD4 to the over-temperature of TAD4. The over-temperature of TAD4 can be 125°C. Specifically, when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ② of the downshift cooling state, if the first temperature is less than 80°C, the temperature limit ratio is less than 64% at this time, and the opening of the above-mentioned valve is controlled to be 1L / min; when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ① of requesting cooling, if the first temperature satisfies 65°C≤T<105°C, the temperature limit ratio is between 52% and 84% at this time, and the opening of the above-mentioned valve is controlled to be 1L / min; when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ② of requesting cooling, if the first temperature is greater than 105°C, the temperature limit ratio is greater than 84% at this time, and the opening of the above-mentioned valve is controlled to be 3L / min; when the battery pack cooler is in the off state, the corresponding adjustment parameters are shown in Table 1, which will not be repeated here.

[0041] Table 1

[0042]

[0043] According to a specific embodiment of the present application, the opening of the valve is adjusted according to the working state and the first temperature, including: an adjustment step, when the first temperature is not within the third temperature range, the opening of the valve is adjusted according to the working state and the first temperature; an acquisition step, acquiring the adjusted first temperature; a determination step, determining whether the first temperature is within the third temperature range; a loop step, sequentially executing the adjustment step, the acquisition step, and the determination step at least once until the first temperature is within the third temperature range. By looping and adjusting the valve opening, the automatic adjustment of the working temperature of the domain controller is achieved, further ensuring that the working temperature of the domain controller can be maintained within a suitable temperature range.

[0044] In order to further ensure that the battery pack is always in a suitable temperature range, avoid damage to the battery pack due to over-high temperature, and further ensure the service life of the battery pack, according to another specific embodiment of the present application, the method also includes: obtaining a second temperature, the second temperature is data characterizing the working temperature of the battery pack; according to the second temperature, controlling the working state of the battery pack cooler, when the second temperature is greater than the fifth threshold, controlling the battery pack cooler to turn on, when the second temperature is less than or equal to the fifth threshold, controlling the battery pack cooler to turn off. In this way, the automatic adjustment of the working temperature of the battery pack is achieved, and it is further ensured that the working temperature of the battery pack can be maintained in a suitable temperature range.

[0045] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0046] The present application also provides a thermal management device for a vehicle, such as Figure 1 As shown, the vehicle includes a battery pack 100, a domain controller 101 and a cooling system, the cooling system includes a battery pack cooler (not shown in the figure), a first pipeline 102 and a second pipeline 103, the first pipeline 102 and the second pipeline 103 are both used to transport coolant, the battery pack cooler and the battery pack 100 are respectively located on the first pipeline 102, the second pipeline 103 is connected in parallel to the first pipeline 102 at both ends of the battery pack 100, the domain controller 101 is located on the second pipeline 103, and a valve 104 is provided on the second pipeline 103. It should be noted that the thermal management device of the vehicle in the embodiment of the present application can be used to execute the thermal management method for the vehicle provided in the embodiment of the present application. The thermal management device of the vehicle provided in the embodiment of the present application is introduced below.

[0047] Figure 3 Schematic diagram of a thermal management device for a vehicle according to an embodiment of the present application. Figure 3 As shown, the device includes a first acquisition unit 10 and an adjustment unit 20, wherein the first acquisition unit 10 is used to obtain the working state of the battery pack cooler, and the working state is an open state or a closed state; the adjustment unit 20 is used to adjust the opening of the valve at least according to the working state, so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0048] In the thermal management device of the vehicle of the present application, the working state of the battery pack cooler being turned on or off is obtained by the above-mentioned first acquisition unit, and the opening of the valve is adjusted by the above-mentioned adjustment unit according to the working state, so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the above-mentioned first pipeline to cool the battery pack. Compared with the cooling and heat dissipation strategy of the battery pack and the domain controller in parallel in the prior art, the coolant will flow to the pipeline where the domain controller is located and the pipeline where the battery pack is located, resulting in the problem of poor cooling effect of the battery pack. The present application adjusts the valve opening according to the working state of the battery pack cooler to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, so as to ensure that the battery pack can work in a suitable temperature range. And the present application does not need to request the inlet water temperature. The inlet temperature at this time (i.e., the temperature of the coolant flowing into the first pipe and the second pipe) is determined based on whether the battery pack cooler is working. That is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0049] In actual application, vehicles generally have two cooling modes. One is that the coolant dissipates heat through the radiator at the front end of the vehicle. At this time, the coolant temperature ≈ the ambient temperature, which is suitable for normal temperature or low temperature use environment; the other is that the coolant exchanges heat through the battery pack cooler of the vehicle to obtain a lower coolant temperature. Generally, the coolant temperature is ≈20°C, which is suitable for high temperature use environment. That is to say, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is 20°C.

[0050] In order to further ensure that the battery pack operates within a suitable temperature range, according to another specific embodiment of the present application, the adjustment unit includes a first control module and a second control module, wherein the first control module is used to control the valve to open to a first predetermined opening when the working state is the open state; the second control module is used to control the valve to open to a second predetermined opening when the working state is the closed state, wherein the second predetermined opening is greater than the first predetermined opening. When the working state is the open state, it means that the working temperature of the battery pack is relatively high and a large amount of coolant is required. At this time, the valve is opened to a smaller first predetermined opening, so that the flow rate of the coolant in the second pipeline where the domain controller is located is relatively small, and most of the coolant flows to the first pipeline where the battery pack is located, so as to cool down the battery pack, and further ensure a better cooling effect of the battery pack. When the working state is the closed state, it means that the working temperature of the battery pack is not very high and the required amount of coolant is small. At this time, the valve is opened to a larger second predetermined opening, so that the flow rate of the coolant in the second pipeline where the domain controller is located is larger, thereby ensuring the cooling effect of the battery pack and further ensuring a better cooling effect on the domain controller.

[0051] According to another specific embodiment of the present application, the device further includes a second acquisition unit, which is used to acquire a first temperature before adjusting the opening of the valve at least according to the working state, wherein the first temperature is data representing the working temperature of the domain controller; the adjustment unit includes an adjustment module, which is used to adjust the opening of the valve according to the working state and the first temperature. In this embodiment, the opening of the valve is adjusted according to the first temperature representing the working temperature of the domain controller and the working state, thereby further taking into account the cooling effect of the battery pack and the cooling effect of the domain controller.

[0052] Specifically, obtaining the first temperature includes: obtaining the temperature reported by TAD4. Since the main heat source in the domain controller is TAD4, the temperature reported by TAD4 is used as the operating temperature of the entire domain controller, which ensures that the above-mentioned first temperature can be obtained relatively simply and conveniently. The present application not only adjusts the valve opening by the working status of the Chiller, but also adjusts the valve opening by taking into account the temperature of the domain controller, further ensuring that the battery pack can operate within a suitable temperature range, and further ensuring that the domain controller can operate within a suitable temperature range.

[0053] In order to further ensure that the cooling effects of the above-mentioned battery pack and the above-mentioned domain controller are good, according to another specific embodiment of the present application, the above-mentioned adjustment module includes a first adjustment submodule, a second adjustment submodule, a third adjustment submodule, a fourth adjustment submodule, a fifth adjustment submodule and a sixth adjustment submodule, wherein the above-mentioned first adjustment submodule is used to adjust the opening of the above-mentioned valve to a third predetermined opening when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is less than the first threshold; the above-mentioned second adjustment submodule is used to adjust the opening of the above-mentioned valve to a fourth predetermined opening when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is within the first temperature range; the above-mentioned third adjustment submodule is used to adjust the opening of the above-mentioned valve to a fifth predetermined opening when the above-mentioned working state is the above-mentioned open state and the above-mentioned first temperature is greater than the second threshold, wherein the above-mentioned first threshold is less than or equal to the minimum value of the above-mentioned first temperature range, and the above-mentioned second threshold is greater than or equal to the above-mentioned first temperature. the maximum value of the range, the third predetermined opening is less than or equal to the fourth predetermined opening, and the fourth predetermined opening is less than or equal to the fifth predetermined opening; the fourth adjusting submodule is used for adjusting the opening of the valve to the sixth predetermined opening when the working state is the closed state and the first temperature is less than the third threshold value; the fifth adjusting submodule is used for adjusting the opening of the valve to the seventh predetermined opening when the working state is the closed state and the first temperature is within the second temperature range; the sixth adjusting submodule is used for adjusting the opening of the valve to the eighth predetermined opening when the working state is the closed state and the first temperature is greater than the fourth threshold value, wherein the third threshold value is less than or equal to the minimum value of the second temperature range, the fourth threshold value is greater than or equal to the maximum value of the second temperature range, the sixth predetermined opening is less than or equal to the seventh predetermined opening, and the seventh predetermined opening is less than or equal to the eighth predetermined opening.

[0054] In a specific embodiment, the first threshold is 50°C, the first temperature range is 65-105°C, the second threshold is , the third threshold is 50°C, the second temperature range is 62-80°C, the fourth threshold is 80°C, the third predetermined opening is 0, the fourth predetermined opening is 1L / min, the fifth predetermined opening is 3L / min, the sixth predetermined opening is 0, the seventh predetermined opening is 1L / min, and the eighth predetermined opening is 3L / min. Of course, the values ​​of the above parameters are not limited to the above values, and those skilled in the art can flexibly set them according to actual conditions. The above adjustment gear for the opening of the valve is also not limited to the above third predetermined opening, the fourth predetermined opening, the fifth predetermined opening, the sixth predetermined opening, the seventh predetermined opening and the eighth predetermined opening. Those skilled in the art can set the number of gears according to actual needs, such as only setting the above third predetermined opening, the fourth predetermined opening, and the fifth predetermined opening, or in addition to the above gears, adding the ninth predetermined gear, the tenth predetermined gear, and so on.

[0055] According to another specific embodiment of the present application, the adjustment module includes an eighth adjustment sub-module, and the seventh adjustment sub-module is used to adjust the opening of the valve according to the first temperature of the domain controller and at least one of the temperature limit ratio of the domain controller, the working state of the battery pack cooler and the current state of the domain controller.

[0056] Specifically, according to the working state of the battery pack cooler, the current state of the domain controller, the first temperature of the domain controller and the temperature limit ratio, the specific reference parameters for controlling the opening of the above-mentioned valve are shown in Table 1, wherein the current state of the domain controller is divided into back-shift cooling and request cooling. When the battery pack cooler is in the on state, the back-shift cooling of the domain controller includes no cooling, high-speed cooling gear ① and high-speed cooling gear ②, and the request cooling of the domain controller includes high-speed cooling gear ① and high-speed cooling gear ②; when the battery pack cooler is in the off state, the back-shift cooling of the domain controller includes no cooling, low-speed cooling gear ① and low-speed cooling gear ②, and the request cooling includes low-speed cooling gear ① and low-speed cooling gear ②. The temperature limit ratio of the domain controller is the ratio of the temperature reported by TAD4 to the over-temperature of TAD4. The over-temperature of TAD4 can be 125°C. Specifically, when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ② of the downshift cooling state, if the first temperature is less than 80°C, the temperature limit ratio is less than 64% at this time, and the opening of the above-mentioned valve is controlled to be 1L / min; when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ① of requesting cooling, if the first temperature satisfies 65°C≤T<105°C, the temperature limit ratio is between 52% and 84% at this time, and the opening of the above-mentioned valve is controlled to be 1L / min; when the battery pack cooler is in the on state and the domain controller is in the high-end cooling gear ② of requesting cooling, if the first temperature is greater than 105°C, the temperature limit ratio is greater than 84% at this time, and the opening of the above-mentioned valve is controlled to be 3L / min; when the battery pack cooler is in the off state, the corresponding adjustment parameters are shown in Table 1, which will not be repeated here.

[0057] According to a specific embodiment of the present application, the adjustment module includes an eighth adjustment submodule, an acquisition submodule, a determination submodule and a circulation submodule, wherein the eighth adjustment submodule is used for the adjustment step, and when the first temperature is not within the third temperature range, the valve opening is adjusted according to the working state and the first temperature; the acquisition submodule is used for the acquisition step, and the adjusted first temperature is acquired; the determination submodule is used for the determination step, and whether the first temperature is within the third temperature range; the circulation submodule is used for the circulation step, and the adjustment step, the acquisition step and the determination step are sequentially executed at least once, until the first temperature is within the third temperature range. By cyclically adjusting the valve opening, the automatic adjustment of the working temperature of the domain controller is realized, and it is further ensured that the working temperature of the domain controller can be maintained in a suitable temperature range.

[0058] In order to further ensure that the battery pack is always in a suitable temperature range, avoid damage to the battery pack due to excessive temperature, and further ensure the service life of the battery pack, according to another specific embodiment of the present application, the above-mentioned device also includes a third acquisition unit and a control unit, wherein the above-mentioned third acquisition unit is used to obtain the second temperature, and the above-mentioned second temperature is data characterizing the working temperature of the above-mentioned battery pack; the above-mentioned control unit is used to control the above-mentioned working state of the above-mentioned battery pack cooler according to the above-mentioned second temperature, and control the above-mentioned battery pack cooler to be turned on when the above-mentioned second temperature is greater than the fifth threshold value, and control the above-mentioned battery pack cooler to be turned off when the above-mentioned second temperature is less than or equal to the above-mentioned fifth threshold value. In this way, the automatic adjustment of the working temperature of the battery pack is realized, and it is further ensured that the working temperature of the battery pack can be maintained in a suitable temperature range.

[0059] The thermal management device of the vehicle includes a processor and a memory. The first acquisition unit, the adjustment unit, etc. are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0060] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be provided, and the problem of poor cooling effect of the battery pack in the prior art can be solved by adjusting kernel parameters.

[0061] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0062] An embodiment of the present invention provides a storage medium on which a program is stored. When the program is executed by a processor, the thermal management method of the vehicle described above is implemented.

[0063] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the thermal management method of the vehicle is executed when the program is run.

[0064] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0065] Step S101, obtaining the working state of the battery pack cooler, the working state being an on state or an off state;

[0066] Step S102, at least according to the working state, adjust the opening of the valve so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0067] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0068] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0069] Step S101, obtaining the working state of the battery pack cooler, the working state being an on state or an off state;

[0070] Step S102, at least according to the working state, adjust the opening of the valve so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack.

[0071] According to another typical embodiment of the present application, a vehicle is also provided, the vehicle includes a battery pack, a domain controller and a cooling system, the cooling system includes a battery pack cooler, a first pipeline and a second pipeline, the first pipeline and the second pipeline are both used to transport coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, a valve is provided on the second pipeline, and the vehicle also includes: a control device for the cooling system, including one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the above methods.

[0072] The above-mentioned vehicle includes a battery pack, a domain controller, a cooling system and a control device of the above-mentioned cooling system, and the control device can execute any of the above-mentioned thermal management methods, which adjusts the valve opening according to the working state of the battery pack cooler to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, ensuring that the battery pack can work in a suitable temperature range, thereby ensuring that the overall heat dissipation effect of the vehicle is better. And this application does not need to request the inlet water temperature, and the inlet temperature at this time (that is, the temperature of the coolant flowing into the first pipeline and the second pipeline) is judged according to whether the battery pack cooler is working, that is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature, and when the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0073] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the above-mentioned units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0075] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0076] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0077] If the above-mentioned integrated unit is implemented in the form of 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, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0078] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0079] 1) In the thermal management method of the vehicle of the present application, first, the working state of the battery pack cooler is obtained, and then, according to the working state, the opening of the valve is adjusted so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack. Compared with the cooling and heat dissipation strategy of the battery pack and the domain controller in parallel in the prior art, the coolant will flow to the pipeline where the domain controller is located and the pipeline where the battery pack is located, resulting in the problem of poor cooling effect of the battery pack. The present application adjusts the valve opening according to the working state of the battery pack cooler to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, ensuring that the battery pack can work in a suitable temperature range. And the present application does not need to request the inlet water temperature. The inlet temperature at this time (i.e., the temperature of the coolant flowing into the first pipe and the second pipe) is determined based on whether the battery pack cooler is working. That is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0080] 2) In the thermal management device of the vehicle of the present application, the working state of the battery pack cooler being turned on or off is obtained by the above-mentioned first acquisition unit, and the opening of the valve is adjusted by the above-mentioned adjustment unit according to the working state, so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the above-mentioned first pipeline to cool the battery pack. Compared with the cooling and heat dissipation strategy of the battery pack and the domain controller in parallel in the prior art, the coolant will flow to the pipeline where the domain controller is located and the pipeline where the battery pack is located, resulting in the problem of poor cooling effect of the battery pack. The present application adjusts the valve opening according to the working state of the battery pack cooler to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, so as to ensure that the battery pack can work in a suitable temperature range. And the present application does not need to request the inlet water temperature. The inlet temperature at this time (i.e., the temperature of the coolant flowing into the first pipe and the second pipe) is determined based on whether the battery pack cooler is working. That is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature. When the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0081] 3) The vehicle mentioned above in the present application includes a battery pack, a domain controller, a cooling system and a control device of the cooling system. The control device can execute any of the above-mentioned thermal management methods. The method adjusts the valve opening according to the working state of the battery pack cooler to control the flow of the coolant flowing through the first pipeline and the second pipeline to cool the battery pack and the domain controller that need to be cooled, or by adjusting the valve opening, the coolant only flows through the first pipeline to cool the battery pack, which alleviates the problem of poor cooling effect of the battery pack in the prior art, ensures that the cooling flow of the battery pack is occupied as little as possible, and distributes more cooling to the battery pack, ensuring that the battery pack can work in a suitable temperature range, thereby ensuring that the overall heat dissipation effect of the vehicle is better. And the present application does not need to request the inlet water temperature, and the inlet temperature at this time (that is, the temperature of the coolant flowing into the first pipeline and the second pipeline) is judged according to whether the battery pack cooler is working, that is, when the battery pack cooler is not working, the actual inlet temperature is the ambient temperature, and when the battery pack cooler is working, the actual water temperature is a fixed temperature.

[0082] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. 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 thermal management method for a vehicle, the vehicle comprising a battery pack, a domain controller and a cooling system, the cooling system comprising a battery pack cooler, a first pipeline and a second pipeline, the first pipeline and the second pipeline are both used to transport a coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, and a valve is provided on the second pipeline, characterized in that: The method comprises: Obtaining a working state of the battery pack cooler, wherein the working state is an on state or an off state; At least according to the working state, the opening of the valve is adjusted so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack, At least according to the working state, adjusting the opening of the valve comprises: When the working state is the open state, controlling the valve to open to a first predetermined opening; When the working state is the closed state, the valve is controlled to open to a second predetermined opening, wherein the second predetermined opening is greater than the first predetermined opening, Before adjusting the opening of the valve at least according to the working state, the method further comprises: Acquire a first temperature, where the first temperature is data representing an operating temperature of the domain controller; At least according to the working state, adjusting the opening of the valve comprises: adjusting the opening of the valve according to the working state and the first temperature, According to the working state and the first temperature, adjusting the opening of the valve includes: When the working state is the open state and the first temperature is less than a first threshold, adjusting the opening of the valve to a third predetermined opening; When the working state is the open state and the first temperature is within a first temperature range, adjusting the opening of the valve to a fourth predetermined opening; When the working state is the open state and the first temperature is greater than a second threshold, the opening of the valve is adjusted to a fifth predetermined opening, wherein the first threshold is less than or equal to a minimum value of the first temperature range, the second threshold is greater than or equal to a maximum value of the first temperature range, the third predetermined opening is less than or equal to the fourth predetermined opening, and the fourth predetermined opening is less than or equal to the fifth predetermined opening; When the working state is the closed state and the first temperature is less than a third threshold, adjusting the opening of the valve to a sixth predetermined opening; When the working state is the closed state and the first temperature is within the second temperature range, adjusting the opening of the valve to a seventh predetermined opening; When the working state is the closed state and the first temperature is greater than the fourth threshold, the opening of the valve is adjusted to an eighth predetermined opening, wherein the third threshold is less than or equal to the minimum value of the second temperature range, the fourth threshold is greater than or equal to the maximum value of the second temperature range, the sixth predetermined opening is less than or equal to the seventh predetermined opening, and the seventh predetermined opening is less than or equal to the eighth predetermined opening.

2. The method according to claim 1, characterized in that According to the working state and the first temperature, adjusting the opening of the valve includes: an adjusting step, when the first temperature is not within a third temperature range, adjusting the opening of the valve according to the working state and the first temperature; An acquisition step of acquiring the adjusted first temperature; a determining step of determining whether the first temperature is within the third temperature range; A loop step is to sequentially execute the adjusting step, the acquiring step and the determining step at least once until the first temperature is within the third temperature range.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Acquire a second temperature, where the second temperature is data representing an operating temperature of the battery pack; According to the second temperature, the working state of the battery pack cooler is controlled. When the second temperature is greater than a fifth threshold, the battery pack cooler is controlled to be turned on. When the second temperature is less than or equal to the fifth threshold, the battery pack cooler is controlled to be turned off.

4. A thermal management device for a vehicle, the vehicle comprising a battery pack, a domain controller and a cooling system, the cooling system comprising a battery pack cooler, a first pipeline and a second pipeline, the first pipeline and the second pipeline are both used to transport a coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, a valve is provided on the second pipeline, and the characteristics are as follows: The device comprises: A first acquisition unit, used to acquire a working state of the battery pack cooler, where the working state is an on state or an off state; an adjusting unit, configured to adjust the opening of the valve at least according to the working state, so that the coolant flows through the first pipeline and the second pipeline to cool the battery pack and the domain controller, or the coolant flows through the first pipeline to cool the battery pack, The adjustment unit comprises: A first control module, configured to control the valve to open to a first predetermined opening when the working state is the open state; a second control module, configured to control the valve to open to a second predetermined opening when the working state is the closed state, wherein the second predetermined opening is greater than the first predetermined opening, The device also includes: A second acquisition unit is used to acquire a first temperature before adjusting the opening of the valve at least according to the working state, where the first temperature is data representing the working temperature of the domain controller; The adjustment unit comprises: An adjustment module, used to adjust the opening of the valve according to the working state and the first temperature, the adjustment module comprising: a first adjustment submodule, configured to adjust the opening of the valve to a third predetermined opening when the working state is the open state and the first temperature is less than a first threshold; a second adjustment submodule, configured to adjust the opening of the valve to a fourth predetermined opening when the working state is the open state and the first temperature is within a first temperature range; a third adjustment submodule, configured to adjust the opening of the valve to a fifth predetermined opening when the working state is the open state and the first temperature is greater than a second threshold, wherein the first threshold is less than or equal to a minimum value of the first temperature range, the second threshold is greater than or equal to a maximum value of the first temperature range, the third predetermined opening is less than or equal to the fourth predetermined opening, and the fourth predetermined opening is less than or equal to the fifth predetermined opening; a fourth adjustment submodule, configured to adjust the opening of the valve to a sixth predetermined opening when the working state is the closed state and the first temperature is less than a third threshold; a fifth adjustment submodule, configured to adjust the opening of the valve to a seventh predetermined opening when the working state is the closed state and the first temperature is within a second temperature range; The sixth adjustment submodule is used to adjust the opening of the valve to an eighth predetermined opening when the working state is the closed state and the first temperature is greater than the fourth threshold, wherein the third threshold is less than or equal to the minimum value of the second temperature range, the fourth threshold is greater than or equal to the maximum value of the second temperature range, the sixth predetermined opening is less than or equal to the seventh predetermined opening, and the seventh predetermined opening is less than or equal to the eighth predetermined opening.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method of any one of claims 1 to 3.

6. A processor, characterized in that: The processor is used to run a program, wherein the program executes the method according to any one of claims 1 to 3 when running.

7. A vehicle, comprising a battery pack, a domain controller and a cooling system, wherein the cooling system comprises a battery pack cooler, a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are both used to transport a coolant, the battery pack cooler and the battery pack are respectively located on the first pipeline, the second pipeline is connected in parallel to the first pipeline at both ends of the battery pack, the domain controller is located on the second pipeline, and a valve is provided on the second pipeline, wherein: The vehicle further comprises: The control device of the cooling system includes one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of claims 1 to 3.

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