Battery water inlet temperature adjusting method, device, equipment, medium and product

Abstract

The invention relates to the technical field of batteries, in particular to a battery water inlet temperature adjusting method and device, equipment, a medium and a product, and the method comprises the steps that the current motor water outlet water temperature, the current battery water inlet water temperature, the current battery temperature and the average vehicle speed within the first preset duration of a vehicle are obtained; the current motor waste heat power is obtained according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and the battery water inlet target temperature is determined according to the current vehicle speed and the current motor waste heat power; and adjusting the water temperature of the battery water inlet according to the target temperature of the battery water inlet. Therefore, the problem that the motor waste heat cannot be utilized and the temperature of the water inlet of the battery cannot be controlled according to the vehicle speed in the prior art is solved, the problem that the endurance mileage of the vehicle battery is attenuated due to the temperature and heating energy consumption in a low-temperature environment is solved, the heating energy consumption is reduced, and the low-temperature endurance mileage is increased.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a method, device, equipment, medium and product for regulating the temperature of a battery water inlet. Background Art

[0002] As the number of new energy vehicles increases, the low-temperature range of vehicles has always been a key issue of concern to new energy vehicle users. It is very important to improve low-temperature range, reduce the range attenuation caused by temperature and heating energy consumption, and improve the vehicle's endurance experience.

[0003] However, the relevant technology is unable to calculate the waste heat generation power according to the vehicle speed, dynamically control the WTC heating power, reduce the heating energy consumption while giving full play to the low-temperature performance of the power battery and improving the low-temperature cruising range, which urgently needs to be solved. Summary of the invention

[0004] The present invention provides a battery water inlet temperature regulation method, device, equipment, medium and product to solve the problem of vehicle battery range attenuation caused by temperature and heating energy consumption in a low temperature environment, reduce heating energy consumption, and improve low temperature range.

[0005] A first aspect of an embodiment of the present invention provides a method for regulating the temperature of a battery water inlet, comprising the following steps: obtaining a current motor water outlet water temperature, a current battery water inlet water temperature, a current battery temperature and an average vehicle speed within a first preset time period; obtaining a current motor waste heat power according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and determining a battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power; and regulating the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0006] Further, in some embodiments, determining the target temperature of the battery water inlet according to the current vehicle speed and the current motor waste heat power includes: determining the minimum motor waste heat power and the maximum motor waste heat power based on a preset relationship between the motor waste heat power and the vehicle speed; obtaining the maximum adjustable temperature of the battery water inlet according to the minimum motor waste heat power, and obtaining the minimum adjustable temperature of the battery water inlet according to the maximum motor waste heat power; and calculating the target temperature of the battery water inlet according to the average vehicle speed within the first preset time period based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet.

[0007] Furthermore, in some embodiments, before adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, it also includes: determining whether the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to a preset temperature threshold; if the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to the preset temperature threshold, stopping adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0008] Furthermore, in some embodiments, after adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, it also includes: obtaining the average speed of the vehicle within a second preset time period; if the average speed of the vehicle within the second preset time period is less than the preset speed, stopping adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0009] Further, in some embodiments, the current motor waste heat power is: current motor waste heat power = ((current motor water outlet water temperature - battery minimum temperature) * 0.875 / (current battery water inlet water temperature - battery minimum temperature)) * 4KW.

[0010] According to the battery water inlet temperature adjustment method provided by the embodiment of the present invention, the waste heat generating power can be calculated according to the vehicle speed, the WTC heating power can be dynamically controlled, the heating energy consumption can be reduced while the low temperature performance of the power battery can be exerted, and the low temperature cruising range can be improved. Thus, the problem of the vehicle battery's cruising range attenuation caused by temperature and heating energy consumption in a low temperature environment is solved, the heating energy consumption is reduced, and the low temperature cruising range is improved.

[0011] A second aspect of the present invention provides a battery water inlet temperature regulating device, the device comprising: an acquisition module, used to obtain the current motor water outlet water temperature, the current battery water inlet water temperature, the current battery temperature and the average vehicle speed within a first preset time period; a calculation module, used to obtain the current motor waste heat power according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and determine the battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power; a control module, used to adjust the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0012] Further, in some embodiments, the calculation module is specifically used to: determine the minimum motor waste heat power and the maximum motor waste heat power based on a preset relationship between the motor waste heat power and the vehicle speed; obtain the maximum adjustable temperature of the battery water inlet according to the minimum motor waste heat power, and obtain the minimum adjustable temperature of the battery water inlet according to the maximum motor waste heat power; based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet, calculate the battery water inlet target temperature according to the average vehicle speed within the first preset time period.

[0013] Furthermore, in some embodiments, before adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, the control module is also used to: determine whether the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to a preset temperature threshold; if the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to the preset temperature threshold, stop adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0014] Furthermore, in some embodiments, after adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, the control module is also used to: obtain the average speed of the vehicle within a second preset time period; if the average speed of the vehicle within the second preset time period is less than the preset speed, stop adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0015] Further, in some embodiments, the current motor waste heat power is: current motor waste heat power = ((current motor water outlet water temperature - battery minimum temperature) * 0.875 / (current battery water inlet water temperature - battery minimum temperature)) * 4KW.

[0016] According to the battery water inlet temperature adjustment device provided by the embodiment of the present invention, the waste heat generating power can be calculated according to the vehicle speed, and the WTC heating power can be dynamically controlled to reduce the heating energy consumption while giving full play to the low temperature performance of the power battery and improve the low temperature range. In this way, the problem of the range attenuation of the vehicle battery due to temperature and heating energy consumption in a low temperature environment is solved, the heating energy consumption is reduced, and the low temperature range is improved.

[0017] A third aspect of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a battery water inlet temperature regulation method as described in any one of the above items.

[0018] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, the program being executed by a processor to implement a battery water inlet temperature regulating method as described in any one of the above items.

[0019] A fifth aspect of the present invention provides a method comprising a computer program, which, when executed by a processor, implements the battery water inlet temperature regulation method as described in any one of the above items.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 A flow chart of a method for regulating the temperature of a battery water inlet according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a temperature rise curve for utilizing waste heat of a motor according to an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a WTC heating temperature rise curve according to an embodiment of the present invention;

[0025] Figure 4 A block diagram of a battery water inlet temperature regulating device provided according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following describes the battery water inlet temperature adjustment method, device, equipment, medium and product of the embodiment of the present invention with reference to the accompanying drawings. In response to the problems mentioned in the above background technology, such as the inability to calculate the waste heat heating power according to the vehicle speed, dynamically control the WTC heating power, reduce the heating energy consumption while giving full play to the low temperature performance of the power battery, and improve the low temperature cruising range, the present invention provides a battery water inlet temperature adjustment method, which can calculate the waste heat heating power according to the vehicle speed, dynamically control the WTC heating power, reduce the heating energy consumption while giving full play to the low temperature performance of the power battery, and improve the low temperature cruising range. It solves the problem of the attenuation of the cruising range of the vehicle battery due to temperature and heating energy consumption in a low temperature environment, reduces the heating energy consumption, and improves the low temperature cruising range.

[0029] Specifically, Figure 1 The present invention is a flow chart of a method for regulating the temperature of a battery water inlet according to an embodiment of the present invention.

[0030] like Figure 1 As shown, the battery water inlet temperature adjustment method includes the following steps:

[0031] In step S101, the current water temperature at the motor water outlet, the current water temperature at the battery water inlet, the current battery temperature and the average vehicle speed within a first preset time period are obtained.

[0032] Among them, the current water temperature at the motor outlet reflects the cooling effect of the motor. Real-time monitoring of the water temperature at the motor outlet can ensure that the motor will not overheat. The outlet water temperature can be obtained by the thermometer method, such as using sensors such as copper-constantan thermocouples to directly measure the water temperature and convert it into an electrical signal, which is connected to the PC through an A / D conversion card to display and record temperature data in real time. Obtaining the current water temperature at the battery water inlet can ensure the normal operation of the battery pack cooling system and prevent the battery from overheating. Similar to the motor outlet, a temperature sensor can also be used for measurement, and the measurement accuracy and real-time performance must be ensured to ensure battery safety. The current battery temperature can be collected using a thermistor. The vehicle speed can be measured and calculated using professional speed measuring equipment.

[0033] In step S102, the current motor waste heat power is obtained according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and the battery water inlet target temperature is determined according to the current vehicle speed and the current motor waste heat power.

[0034] Among them, the embodiment of the present invention can use the ratio of the difference between the water temperature at the water inlet and outlet of the front motor and the minimum temperature of the battery to the difference between the water temperature at the water inlet of the WTC battery and the minimum temperature to equivalently calculate the motor waste heat power.

[0035] Further, in some embodiments, the current motor waste heat power is: current motor waste heat power = ((current motor water outlet water temperature - battery minimum temperature) * 0.875 / (current battery water inlet water temperature - battery minimum temperature)) * 4KW.

[0036] Specifically: Motor waste heat power ≈ 5℃*0.875 / 18*100%*4kw=0.97kw. 4kw is the preset power parameter.

[0037] Furthermore, the motor waste heat utilization temperature rise curve and WTC heating temperature rise curve can be made according to the above calculation method. Figure 2 This is a schematic diagram of a temperature rise curve for utilizing motor waste heat according to an embodiment of the present invention. Figure 3 The figure is a schematic diagram of a WTC heating temperature rise curve according to an embodiment of the present invention.

[0038] Therefore, the motor waste heat power can be calculated based on the current motor outlet water temperature, the current battery water inlet water temperature and the current battery temperature, so that a relationship table between the motor waste heat power and the vehicle speed can be established, which is convenient for dynamic control of the battery water inlet temperature.

[0039] Further, in some embodiments, the target temperature of the battery water inlet is determined based on the current vehicle speed and the current motor waste heat power, including: determining the minimum motor waste heat power and the maximum motor waste heat power based on a preset relationship between the motor waste heat power and the vehicle speed; obtaining the maximum adjustable temperature of the battery water inlet based on the minimum motor waste heat power, and obtaining the minimum adjustable temperature of the battery water inlet based on the maximum motor waste heat power; based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet, calculating the target temperature of the battery water inlet according to the average vehicle speed within a first preset time period.

[0040] Among them, Table 1 is a relationship table between the motor waste heat power and the vehicle speed provided according to an embodiment of the present invention. It can be seen from Table 1 that when the average vehicle speed of the embodiment of the present invention is 17-23 km / h, the motor waste heat power is about 0.77-0.97 kw; when the average vehicle speed is 44-67 km / h, the motor waste heat power is about 1.16-1.94 kw. When there is waste heat, the WPTC power can be reduced by about 0.77-1.94 kw, and the battery water inlet temperature can be dynamically controlled according to the average vehicle speed. For example: initial value = 45°C, the maximum adjustable temperature of the battery water inlet is dynamically controlled ≈45°C*(4-0.77) / 4=36°C, and the minimum adjustable temperature of the battery water inlet is dynamically controlled ≈45°C*(4-1.94)=23°C.

[0041] Table 1

[0042]

[0043] Furthermore, the embodiment of the present invention can calculate the target temperature of the battery water inlet according to the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet. For example: battery water inlet temperature = 36°C * 17 / V, where 17 is a constant in the calculation, V is the average vehicle speed in the past 3 minutes, and the initial value of V = 17.

[0044] In step S103, the water temperature of the battery water inlet is adjusted according to the battery water inlet target temperature.

[0045] Among them, the vehicle controller can heat or cool the water temperature at the battery water inlet according to the calculated target temperature of the battery water inlet to achieve the purpose of water temperature regulation.

[0046] Furthermore, in some embodiments, before adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, it also includes: determining whether the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to a preset temperature threshold; if the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to the preset temperature threshold, stop adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0047] Among them, the embodiment of the present invention can control the motor waste heat circuit to dynamically control the temperature of the battery water inlet when the current motor outlet water temperature minus the battery minimum temperature is greater than 5°C.

[0048] Furthermore, the working process of the waste heat circuit for heating the battery is that the engine motor controls the power battery EWP_B to work, and at the same time the positive temperature coefficient thermistor heating system WPTC controls the refrigerator chiller to control the temperature of the battery, and then the temperature signal is fed back through 3WV and fed back to the engine motor through EWP_P, completing the dynamic temperature control of the battery water inlet by the motor waste heat circuit.

[0049] Furthermore, the WTC battery heating workflow sends a signal to the battery to control the power battery EWP_B to work. At the same time, the positive temperature coefficient thermistor heating system WPTC controls the chiller to control the battery temperature, and finally feeds back the signal to the battery to complete the WTC battery heating work.

[0050] Furthermore, in some embodiments, after adjusting the water temperature of the battery water inlet according to the target temperature of the battery water inlet, it also includes: obtaining the average speed of the vehicle within a second preset time period; if the average speed of the vehicle within the second preset time period is less than the preset speed, stopping adjusting the water temperature of the battery water inlet according to the target temperature of the battery water inlet.

[0051] Among them, the embodiment of the present invention can control the motor waste heat circuit to stop heating and stop dynamic temperature control of the battery water inlet when the average vehicle speed is less than 10 km / h in the past 10 minutes.

[0052] According to the battery water inlet temperature adjustment method provided by the embodiment of the present invention, the waste heat generating power can be calculated according to the vehicle speed, the WTC heating power can be dynamically controlled, the heating energy consumption can be reduced while the low temperature performance of the power battery can be exerted, and the low temperature cruising range can be improved. Thus, the problem of the vehicle battery's cruising range attenuation caused by temperature and heating energy consumption in a low temperature environment is solved, the heating energy consumption is reduced, and the low temperature cruising range is improved.

[0053] Next, the battery water inlet temperature regulating device proposed in the embodiment of the present invention will be described with reference to the accompanying drawings.

[0054] Figure 4 It is a block diagram of a battery water inlet temperature regulating device provided according to an embodiment of the present invention.

[0055] like Figure 4 As shown, the battery water inlet temperature regulating device 10 includes: an acquisition module 100 , a calculation module 200 and a control module 300 .

[0056] Among them, the acquisition module 100 is used to obtain the current motor water outlet water temperature, the current battery water inlet water temperature, the current battery temperature and the average vehicle speed within the first preset time period; the calculation module 200 is used to obtain the current motor waste heat power according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and determine the battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power; the control module 300 is used to adjust the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0057] Further, in some embodiments, the calculation module 200 is specifically used to: determine the minimum motor waste heat power and the maximum motor waste heat power based on a preset relationship between the motor waste heat power and the vehicle speed; obtain the maximum adjustable temperature of the battery water inlet according to the minimum motor waste heat power, and obtain the minimum adjustable temperature of the battery water inlet according to the maximum motor waste heat power; based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet, calculate the target temperature of the battery water inlet according to the average vehicle speed within a first preset time period.

[0058] Furthermore, in some embodiments, before adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, the control module 300 is also used to: determine whether the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to a preset temperature threshold; if the difference between the current motor water outlet water temperature and the current battery temperature is less than or equal to the preset temperature threshold, stop adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature.

[0059] Further, in some embodiments, after adjusting the water temperature of the battery water inlet according to the target temperature of the battery water inlet, the control module 300 is also used to: obtain the average speed of the vehicle within a second preset time period; if the average speed of the vehicle within the second preset time period is less than the preset speed, stop adjusting the water temperature of the battery water inlet according to the target temperature of the battery water inlet.

[0060] Further, in some embodiments, the current motor waste heat power is: current motor waste heat power = ((current motor water outlet water temperature - battery minimum temperature) * 0.875 / (current battery water inlet water temperature - battery minimum temperature)) * 4KW.

[0061] It should be noted that the above explanations and descriptions of the embodiment of the battery water inlet temperature regulation method are also applicable to the battery water inlet temperature regulation device of this embodiment, and will not be repeated here.

[0062] According to the battery water inlet temperature adjustment device provided by the embodiment of the present invention, the waste heat generating power can be calculated according to the vehicle speed, and the WTC heating power can be dynamically controlled to reduce the heating energy consumption while giving full play to the low temperature performance of the power battery and improve the low temperature range. In this way, the problem of the range attenuation of the vehicle battery due to temperature and heating energy consumption in a low temperature environment is solved, the heating energy consumption is reduced, and the low temperature range is improved.

[0063] Figure 5 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. The electronic device may include:

[0064] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0065] When the processor 502 executes the program, the battery water inlet temperature adjustment method provided in the above embodiment is implemented.

[0066] Furthermore, the electronic device also includes:

[0067] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0068] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0069] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0070] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0071] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0072] The processor 502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

[0073] In addition, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, wherein the program, when executed by a processor, implements the above-mentioned method for regulating the temperature of a battery water inlet.

[0074] In addition, an embodiment of the present invention further provides a computer program product, including a computer program, which is executed to implement the above battery water inlet temperature adjustment method.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "N" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0078] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0079] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

Claims

1. A method for regulating the temperature of a battery water inlet, characterized in that: The following steps are involved: Obtain the current water temperature of the motor water outlet, the current water temperature of the battery water inlet, the current battery temperature, and the average vehicle speed within a first preset time period; Obtaining the current motor waste heat power according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and determining the battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power; The water temperature of the battery water inlet is adjusted according to the battery water inlet target temperature.

2. The method according to claim 1, characterized in that The determining the battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power includes: Based on the preset relationship between the motor waste heat power and the vehicle speed, the minimum motor waste heat power and the maximum motor waste heat power are determined; The maximum adjustable temperature of the battery water inlet is obtained according to the minimum motor waste heat power, and the minimum adjustable temperature of the battery water inlet is obtained according to the maximum motor waste heat power; Based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet, the target temperature of the battery water inlet is calculated according to the average vehicle speed within the first preset time period.

3. The method according to claim 1, characterized in that Before adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, the method further includes: Determine whether the difference between the current water temperature at the motor water outlet and the current battery temperature is less than or equal to a preset temperature threshold; If the difference between the current water temperature at the motor water outlet and the current battery temperature is less than or equal to the preset temperature threshold, the water temperature at the battery water inlet is stopped from being adjusted according to the battery water inlet target temperature.

4. The method according to claim 1, characterized in that: After adjusting the water temperature of the battery water inlet according to the battery water inlet target temperature, the method further includes: Obtaining an average speed of the vehicle within a second preset time period; If the average speed of the vehicle within the second preset time period is less than the preset speed, the water temperature of the battery water inlet is stopped being adjusted according to the battery water inlet target temperature.

5. The method according to any one of claims 1 to 4, characterized in that: The current motor waste heat power is: Current motor waste heat power = ((current motor outlet water temperature - battery minimum temperature) * 0.875 / (current battery inlet water temperature - battery minimum temperature)) * 4KW.

6. A battery water inlet temperature regulating device, characterized in that: The device comprises: An acquisition module is used to acquire the current water temperature of the motor water outlet, the current water temperature of the battery water inlet, the current battery temperature and the average vehicle speed within a first preset time period; a calculation module, configured to obtain the current motor waste heat power according to the current motor water outlet water temperature, the current battery water inlet water temperature and the current battery temperature, and determine the battery water inlet target temperature according to the current vehicle speed and the current motor waste heat power; The control module is used to adjust the water temperature of the battery water inlet according to the target temperature of the battery water inlet.

7. The device according to claim 6, characterized in that The calculation module is specifically used for: Based on the preset relationship between the motor waste heat power and the vehicle speed, the minimum motor waste heat power and the maximum motor waste heat power are determined; The maximum adjustable temperature of the battery water inlet is obtained according to the minimum motor waste heat power, and the minimum adjustable temperature of the battery water inlet is obtained according to the maximum motor waste heat power; Based on the maximum adjustable temperature of the battery water inlet and the minimum adjustable temperature of the battery water inlet, the target temperature of the battery water inlet is calculated according to the average vehicle speed within the first preset time period.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the battery water inlet temperature regulation method according to any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the battery water inlet temperature regulation method as described in any one of claims 1 to 5.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the battery water inlet temperature regulating method as described in any one of claims 1 to 5 is implemented.

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