Charging machine water temperature detection method and device, vehicle and storage medium

Abstract

The application relates to a charging machine water temperature detection method and device, a vehicle and a storage medium, wherein the method comprises the following steps: collecting a first water temperature of a water inlet of a vehicle electric drive heat dissipation system and a second water temperature reported by a motor controller and a driving assembly; determining a first fitting temperature difference of the charging machine and a second fitting temperature difference of the motor controller and the driving assembly according to a current opening degree of a vehicle water pump and a current operation condition of the vehicle electric drive heat dissipation system; then obtaining a first fitting water temperature of the charging machine and a second fitting water temperature of the charging machine; and obtaining a calculated water temperature of the charging machine based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charging machine. Thus, the technical problem that, in the related art, when a sensor is used for sampling the temperature of the charging machine, the sampling result is easily abnormal due to various factors, thereby affecting the response control of the vehicle to the abnormal temperature and affecting the normal use of the vehicle is solved.

Description

Technical Field

[0001] This application relates to the field of vehicle safety technology, and in particular to a method, device, vehicle, and storage medium for detecting charger water temperature. Background Technology

[0002] The charger affects the vehicle's charging performance, drivability, and entertainment features, directly impacting the user experience. Therefore, ensuring the charger's reliability and stability under various operating conditions is crucial. During operation, the charger generates a significant amount of heat. Coolant in the water channels dissipates this heat, lowering the charger's temperature and thus improving its stability and reliability.

[0003] In related technologies, sensors are installed on the walls of the water channels inside the charger to collect water temperature values. The cooling water temperature is then compared with the temperature calibrated by the charger's internal software. If the calibrated temperature is exceeded, power is limited to prevent excessive heat from damaging the charger.

[0004] However, in related technologies, the results of charger water temperature acquisition are susceptible to abnormal factors. When the sampling circuit is damaged and cannot be used correctly, or when the sampling error is too large, it will cause the charger to trigger false protection or fail to protect, affecting the whole vehicle, making the vehicle unable to be used normally, and affecting the user experience. Summary of the Invention

[0005] This application provides a method, device, vehicle, and storage medium for detecting charger water temperature, in order to solve the technical problem in the related art that when relying on sensors to sample charger temperature, the sampling results are easily abnormal due to various factors, thereby affecting the vehicle's response control to abnormal temperatures and affecting the normal use of the vehicle.

[0006] The first aspect of this application provides a method for detecting the water temperature of a charger, comprising the following steps: collecting a first water temperature at the inlet of a vehicle's electric drive cooling system and a second water temperature reported by a motor controller and drive components; obtaining the current opening degree of the vehicle's water pump and the current operating condition of the vehicle's electric drive cooling system; determining a first fitted temperature difference of the charger and a second fitted temperature difference of the motor controller and drive components based on the current opening degree and the current operating condition; obtaining a first fitted water temperature of the charger based on the first water temperature and the first fitted temperature difference; obtaining a second fitted water temperature of the charger based on the second water temperature and the second fitted temperature difference; and obtaining a calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature, and a third water temperature reported by the charger.

[0007] Based on the above technical means, the embodiments of this application can combine the first water temperature at the inlet of the vehicle's electric drive cooling system, the second water temperature reported by the motor controller and drive components, the current opening degree of the vehicle's water pump, and the current operating conditions of the vehicle's electric drive cooling system to determine the first fitted water temperature and the second fitted water temperature of the charger. Thus, based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger, the calculated water temperature of the charger can be obtained, increasing the accuracy of the temperature reported by the charger, reducing the impact of sensor failure on the charger's temperature sampling, reducing the probability of incorrect vehicle response, ensuring normal vehicle use, and improving the user experience.

[0008] Optionally, in one embodiment of this application, obtaining the calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger includes: calculating the average value of the first fitted water temperature, the second fitted water temperature, and the third water temperature to obtain the calculated water temperature.

[0009] Based on the above technical means, the embodiments of this application can obtain the actual reportable charger temperature by calculating the average value of the first fitted water temperature, the second fitted water temperature and the third water temperature, thereby increasing the accuracy of the charger's reported temperature.

[0010] Optionally, in one embodiment of this application, determining the first fitted temperature difference of the charger based on the current opening degree and the current operating condition includes: obtaining the first fitted temperature difference from a pre-constructed first fitted curve using the current opening degree and the current operating condition, wherein the first fitted curve is obtained from the calibration temperature difference value of the charger under at least one water pump opening condition.

[0011] Based on the above technical means, the embodiments of this application can use a pre-constructed first fitting curve to determine the calibrated temperature difference under the current opening degree and current operating conditions, thereby obtaining a first fitting temperature that is closer to the actual temperature of the charger.

[0012] Optionally, in one embodiment of this application, determining the second fitted temperature difference of the motor controller and drive assembly based on the current opening degree and the current operating condition includes: obtaining the second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and the current operating condition, wherein the second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive assembly under at least one pump opening condition.

[0013] Based on the above technical means, the embodiments of this application can use a pre-constructed second fitting curve to determine the calibration temperature difference under the current opening degree and current operating conditions, thereby obtaining a second fitting temperature that is closer to the actual temperature of the charger.

[0014] Optionally, in one embodiment of this application, after obtaining the calculated water temperature of the charger, the method further includes: reporting the calculated water temperature as the actual water temperature of the charger to a preset terminal, so that the preset terminal adjusts the water pump opening of the vehicle based on the actual water temperature.

[0015] Based on the above technical means, the embodiments of this application can report the actual water temperature of the charger, so that the preset terminal can adjust the water pump opening according to the actual water temperature, thereby ensuring the normal use of the vehicle.

[0016] A second aspect of this application provides a device for detecting the water temperature of a charger, comprising: a data acquisition module for acquiring a first water temperature at the inlet of a vehicle's electric drive cooling system and a second water temperature reported by a motor controller and drive components; a determination module for acquiring the current opening degree of the vehicle's water pump and the current operating condition of the vehicle's electric drive cooling system, and determining a first fitted temperature difference of the charger and a second fitted temperature difference of the motor controller and drive components based on the current opening degree and the current operating condition; and a calculation module for obtaining a first fitted water temperature of the charger based on the first water temperature and the first fitted temperature difference, obtaining a second fitted water temperature of the charger based on the second water temperature and the second fitted temperature difference, and obtaining a calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature, and a third water temperature reported by the charger.

[0017] Optionally, in one embodiment of this application, the calculation module includes: a calculation unit, used to calculate the average value of the first fitted water temperature, the second fitted water temperature and the third water temperature to obtain the calculated water temperature.

[0018] Optionally, in one embodiment of this application, the determining module includes: a first acquisition unit, configured to acquire the first fitted temperature difference from a pre-constructed first fitted curve using the current opening degree and the current operating condition, wherein the first fitted curve is obtained from the calibration temperature difference of the charger under at least one water pump opening condition.

[0019] Optionally, in one embodiment of this application, the determining module includes: a second acquisition unit, used to acquire the second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and the current operating condition, wherein the second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive component under at least one water pump opening condition.

[0020] Optionally, in one embodiment of this application, it further includes: a reporting module, used to report the calculated water temperature as the actual water temperature of the charger to a preset terminal, so that the preset terminal adjusts the water pump opening of the vehicle based on the calculated water temperature.

[0021] A third aspect of this application provides a vehicle, including: 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 charger water temperature detection method as described in the above embodiments.

[0022] A fourth aspect of this application provides a computer-readable storage medium storing computer instructions for causing the computer to perform the charger water temperature detection method as described in the above embodiments.

[0023] The beneficial effects of the embodiments of this application are as follows:

[0024] (1) The embodiments of this application can combine the first water temperature at the inlet of the vehicle's electric drive cooling system, the second water temperature reported by the motor controller and drive components, the current opening degree of the vehicle's water pump, and the current operating conditions of the vehicle's electric drive cooling system to determine the first fitted water temperature and the second fitted water temperature of the charger. Thus, the calculated water temperature of the charger can be obtained based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger. This increases the accuracy of the temperature reported by the charger, reduces the impact of sensor failure on the charger's temperature sampling, reduces the probability of incorrect vehicle response, ensures normal vehicle use, and improves the user experience.

[0025] (2) The embodiments of this application can obtain a first fitting temperature and a second fitting temperature that are more consistent with the actual temperature of the charger by using the first fitting curve and the second fitting curve, respectively.

[0026] (3) The embodiments of this application can report the actual water temperature of the charger so that the preset terminal can adjust the water pump opening according to the actual water temperature, thereby ensuring the normal use of the vehicle.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 This is a flowchart of a method for detecting the water temperature of a charger according to an embodiment of this application;

[0030] Figure 2 This is a schematic diagram illustrating the principle of a charger water temperature detection method according to an embodiment of this application;

[0031] Figure 3This is a flowchart of a charger water temperature detection method according to an embodiment of this application;

[0032] Figure 4 This is a schematic diagram of a charger water temperature detection device according to an embodiment of this application;

[0033] Figure 5 This is a structural schematic diagram of a vehicle provided according to an embodiment of this application.

[0034] Among them, A1-inlet, A2-charger, A3-motor controller and drive components, A4-outlet; 10-charger water temperature detection device, 100-acquisition module, 200-determination module, 300-calculation module; 501-memory, 502-processor, 503-communication interface. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] The following description, with reference to the accompanying drawings, outlines a method, apparatus, vehicle, and storage medium for detecting charger coolant temperature according to embodiments of this application. Addressing the technical problem mentioned in the background art, where relying on sensors for charger temperature sampling can easily lead to abnormal sampling results due to various factors, thus affecting the vehicle's response control to abnormal temperatures and impacting normal vehicle operation, this application provides a method for detecting charger coolant temperature. In this method, a first coolant temperature from the inlet of the vehicle's electric drive cooling system and a second coolant temperature reported by the motor controller and drive components are collected. Combined with the current opening degree of the vehicle's water pump and the current operating condition of the vehicle's electric drive cooling system, a first fitted coolant temperature and a second fitted coolant temperature of the charger are determined. Based on the first fitted coolant temperature, the second fitted coolant temperature, and the third coolant temperature reported by the charger, the calculated coolant temperature of the charger is obtained. This increases the accuracy of the charger's reported temperature, reduces the impact of sensor failure on charger temperature sampling, lowers the probability of erroneous vehicle responses, ensures normal vehicle operation, and improves the user experience. This solves the technical problem in related technologies where relying on sensors to sample charger temperature can easily lead to abnormal sampling results due to various factors, thus affecting the vehicle's response and control to abnormal temperatures and impacting the normal use of the vehicle.

[0037] Before describing the charger water temperature detection method of the embodiments of this application, the vehicle structure involved in the embodiments of this application will be described by way of example.

[0038] like Figure 1As shown, the vehicle in this embodiment of the application includes an electric drive cooling system, which may include: a water inlet A1, a charger A2, a motor controller and drive assembly A3, and a water outlet A4.

[0039] In practical applications, cooling water enters the charger A2 through the inlet A1, then enters the motor controller and drive assembly A3 from the charger A2, and finally exits through the outlet A4, thus forming an electric drive cooling system.

[0040] Specifically, Figure 2 This is a schematic flowchart illustrating a method for detecting the water temperature of a charger, as provided in an embodiment of this application.

[0041] like Figure 2 As shown, the method for detecting the water temperature of the charger includes the following steps:

[0042] In step S201, the first water temperature of the inlet A1 of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive component A3 are collected.

[0043] In actual implementation, the embodiments of this application can utilize, for example, a temperature sensor to collect the first water temperature T1 of the water inlet A1 of the vehicle's electric drive cooling system, and obtain the second water temperature T2 reported by the motor controller and drive component A3.

[0044] In step S102, the current opening degree of the vehicle water pump and the current operating condition of the vehicle electric drive cooling system are obtained, and the first fitted temperature difference of the charger A2 and the second fitted temperature difference of the motor controller and drive assembly A3 are determined based on the current opening degree and the current operating condition.

[0045] In some embodiments, the present application embodiments can obtain the current opening degree of the vehicle water pump and the current operating condition of the vehicle electric drive cooling system, including the current operating condition of the charger A2 and the current operating condition of the motor controller and drive assembly A3, thereby determining a first fitted temperature difference of the charger A2 based on the current opening degree and the current operating condition of the charger A2, and determining a second fitted temperature difference of the motor controller and drive assembly A3 based on the current opening degree and the current operating condition of the motor controller and drive assembly A3.

[0046] The first fitted temperature difference can be understood as the temperature difference of the cooling water in the channel from the inlet A1 to the charger A2, and the second fitted temperature difference can be understood as the temperature difference of the cooling water in the channel from the charger A2 to the motor controller and drive assembly A3.

[0047] Optionally, in one embodiment of this application, determining the first fitted temperature difference of charger A2 based on the current opening degree and the current operating condition includes: obtaining the first fitted temperature difference from a pre-constructed first fitted curve using the current opening degree and the current operating condition, wherein the first fitted curve is obtained from the calibration temperature difference value of charger A2 under at least one water pump opening condition.

[0048] As one possible implementation, embodiments of this application can pre-construct a first fitting curve, which can be obtained by fitting sample data. The sample data can be obtained from calibration data under different pump opening degrees and different operating conditions. Specifically, as shown in Table 1, Table 1 is a sample data table of temperature difference curves fitted using calibration data.

[0049] Table 1

[0050]

[0051] Furthermore, in this embodiment of the application, the first fitted temperature difference ΔT1 of the charger A2 can be obtained by substituting the current opening degree and the current operating condition into the first fitted curve.

[0052] Optionally, in one embodiment of this application, determining the second fitted temperature difference of the motor controller and drive component A3 based on the current opening degree and the current operating condition includes: obtaining the second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and the current operating condition, wherein the second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive component A3 under at least one water pump opening condition.

[0053] In other words, the embodiments of this application can also pre-construct a second fitting curve, which can be obtained by fitting sample data. The sample data can be obtained by calibration data under different pump opening degrees and different operating conditions. Specifically, as shown in Table 2, Table 2 is a sample data table of temperature difference curves fitted by calibration data.

[0054] Table 2

[0055]

[0056]

[0057] Furthermore, in this embodiment of the application, the second fitted temperature difference ΔT2 of the charger A2 can be obtained by substituting the current opening degree and the current operating condition into the second fitted curve.

[0058] In step S103, the first fitted water temperature of charger A2 is obtained based on the first water temperature and the first fitted temperature difference, the second fitted water temperature of charger A2 is obtained based on the second water temperature and the second fitted temperature difference, and the calculated water temperature of charger A2 is obtained based on the first fitted water temperature, the second fitted water temperature and the third water temperature reported by charger A2.

[0059] In actual implementation, the embodiments of this application can obtain the first fitted water temperature of charger A2, i.e., T1+△T1, by superimposing the first water temperature T1 and the first fitted temperature difference △T1; the embodiments of this application can obtain the second fitted water temperature of charger A2, i.e., T2-△T2, by subtracting the second water temperature T2 and the second fitted temperature difference △T2.

[0060] In this embodiment of the application, after calculating the first fitted water temperature and the second fitted water temperature, the calculated water temperature of charger A2 can be obtained by combining the third water temperature T3 reported by charger A2.

[0061] Optionally, in one embodiment of this application, the calculated water temperature of charger A2 is obtained based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by charger A2, including: calculating the average value of the first fitted water temperature, the second fitted water temperature, and the third water temperature to obtain the calculated water temperature.

[0062] The method for calculating the water temperature is to calculate the average of the first fitted water temperature, the second fitted water temperature, and the third water temperature to obtain the actual reportable temperature of charger A2, thereby increasing the accuracy of the final reported temperature of charger A2.

[0063] Optionally, in one embodiment of this application, after obtaining the calculated water temperature of the charger A2, the method further includes: reporting the calculated water temperature as the actual water temperature of the charger A2 to a preset terminal, so that the preset terminal adjusts the water pump opening of the vehicle based on the actual water temperature.

[0064] As one possible implementation method, the embodiments of this application can use the calculated water temperature as the actual water temperature of the charger A2 and report it to a preset terminal. The preset terminal can be a vehicle terminal, a mobile terminal of a user associated with the vehicle, or a maintenance terminal of the car manufacturer, etc.

[0065] For example, when the preset terminal is a vehicle terminal, the vehicle in this application embodiment can determine whether the vehicle needs to adjust the water pump opening based on the actual water temperature, and when it is determined that the water pump opening needs to be adjusted, a corresponding control command is generated to control the vehicle's water pump to adjust the opening.

[0066] Combination Figure 1 and Figure 3 As shown, the working principle of the charger A2 water temperature detection method of this application embodiment is explained in detail with reference to one embodiment. Figure 3 As shown, embodiments of this application may include the following steps:

[0067] Step S301: Detect the temperature of the water inlet A1, i.e. the first water temperature TI, through the vehicle's overall thermal management system and report it.

[0068] Step S302: Using the first fitted curve, obtain the first fitted temperature difference ΔT1 under the current operating conditions of the vehicle's electric drive cooling system at the current water pump opening degree.

[0069] Step S303: By superimposing the first water temperature T1 and the first fitted temperature difference ΔT1, the first fitted water temperature of charger A2 is obtained, namely T1+ΔT1.

[0070] Step S304: Obtain the temperature reported by the motor controller and drive component A3, i.e., the second water temperature T2.

[0071] Step S305: Using the second fitting curve, obtain the second fitted temperature difference ΔT2 under the current operating conditions of the vehicle's electric drive cooling system at the current water pump opening degree.

[0072] Step S306: Subtract the second water temperature T2 and the second fitted temperature difference ΔT2 to obtain the second fitted water temperature of charger A2, i.e., T2-ΔT2.

[0073] Step S307: Obtain the water temperature collected by charger A2, i.e., the third water temperature T3.

[0074] Step S308: Calculate the average value of the first fitted water temperature, the second fitted water temperature and the third water temperature, and report the average value as the actual water temperature of the charger A2.

[0075] In summary, the embodiments of this application can estimate the heating temperature of charger A2 by measuring the temperature of the inlet and outlet nozzles of the cooling water flowing through each component in the electric drive cooling system, and by calibrating the temperature difference between charger A2, motor controller, and drive component A3 under different operating conditions. This estimation is then compared with the temperature reported by charger A2 itself, discarding unqualified data and processing the remaining data to obtain the estimated water temperature of charger A2 and report it correctly. This reduces the unpleasant experience caused by the power supply's own temperature sampling triggering without protection or without protection.

[0076] The charger water temperature detection method proposed in this application can collect the first water temperature at the inlet of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive components. Combined with the current opening of the vehicle's water pump and the current operating conditions of the vehicle's electric drive cooling system, a first fitted water temperature and a second fitted water temperature of the charger are determined. Based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger, the calculated water temperature of the charger is obtained. This increases the accuracy of the charger's reported temperature, reduces the impact of sensor failure on charger temperature sampling, reduces the probability of incorrect vehicle response, ensures normal vehicle operation, and improves the user experience. Therefore, it solves the technical problem in related technologies where relying on sensors for charger temperature sampling can easily lead to abnormal sampling results due to various factors, thus affecting the vehicle's response control to abnormal temperatures and impacting normal vehicle operation.

[0077] Next, referring to the accompanying drawings, a charger water temperature detection device according to an embodiment of this application is described.

[0078] Figure 4 This is a block diagram of a charger water temperature detection device according to an embodiment of this application.

[0079] like Figure 4 As shown, the charger water temperature detection device 10 includes: a data acquisition module 100, a determination module 200, and a calculation module 300.

[0080] Specifically, the acquisition module 100 is used to acquire the first water temperature at the inlet of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive components.

[0081] The determination module 200 is used to obtain the current opening degree of the vehicle water pump and the current operating condition of the vehicle electric drive cooling system, and to determine the first fitted temperature difference of the charger and the second fitted temperature difference of the motor controller and drive components based on the current opening degree and the current operating condition.

[0082] The calculation module 300 is used to obtain the first fitted water temperature of the charger based on the first water temperature and the first fitted temperature difference, obtain the second fitted water temperature of the charger based on the second water temperature and the second fitted temperature difference, and obtain the calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature and the third water temperature reported by the charger.

[0083] Optionally, in one embodiment of this application, the computing module 300 includes a computing unit.

[0084] The calculation unit is used to calculate the average value of the first fitted water temperature, the second fitted water temperature, and the third water temperature to obtain the calculated water temperature.

[0085] Optionally, in one embodiment of this application, the determining module 200 includes: a first acquisition unit.

[0086] The first acquisition unit is used to acquire a first fitted temperature difference from a pre-constructed first fitted curve using the current opening degree and the current operating condition. The first fitted curve is obtained from the calibration temperature difference of the charger under at least one water pump opening condition.

[0087] Optionally, in one embodiment of this application, the determining module 200 includes: a second acquisition unit.

[0088] The second acquisition unit is used to acquire a second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and the current operating condition. The second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive components under at least one pump opening condition.

[0089] Optionally, in one embodiment of this application, the charger water temperature detection device 10 further includes a reporting module.

[0090] The reporting module is used to report the calculated water temperature as the actual water temperature of the charger to the preset terminal, so that the preset terminal can adjust the water pump opening of the vehicle based on the calculated water temperature.

[0091] It should be noted that the explanation of the aforementioned embodiment of the charger water temperature detection method also applies to the charger water temperature detection device of this embodiment, and will not be repeated here.

[0092] The charger water temperature detection device proposed in this application can collect the first water temperature at the inlet of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive components. Combined with the current opening of the vehicle's water pump and the current operating condition of the vehicle's electric drive cooling system, it determines the first fitted water temperature and the second fitted water temperature of the charger. Based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger, the calculated water temperature of the charger is obtained. This increases the accuracy of the charger's reported temperature, reduces the impact of sensor failure on charger temperature sampling, reduces the probability of erroneous vehicle responses, ensures normal vehicle operation, and improves the user experience. Therefore, it solves the technical problem in related technologies where relying on sensors for charger temperature sampling can easily lead to abnormal sampling results due to various factors, thus affecting the vehicle's response control to abnormal temperatures and impacting normal vehicle operation.

[0093] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0094] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0095] When the processor 502 executes the program, it implements the charger water temperature detection method provided in the above embodiments.

[0096] Furthermore, the vehicle also includes:

[0097] Communication interface 503 is used for communication between memory 501 and processor 502.

[0098] The memory 501 is used to store computer programs that can run on the processor 502.

[0099] The memory 501 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0100] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0101] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0102] Processor 502 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0103] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for detecting the charger water temperature.

[0104] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0105] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0106] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0107] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0108] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0109] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0110] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0111] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for detecting the water temperature of a charger, characterized in that, Includes the following steps: Collect the first water temperature at the inlet of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive components; The current opening degree of the vehicle water pump and the current operating condition of the vehicle electric drive cooling system are obtained, and the first fitted temperature difference of the charger and the second fitted temperature difference of the motor controller and drive components are determined based on the current opening degree and the current operating condition. The first fitted water temperature of the charger is obtained based on the first water temperature and the first fitted temperature difference. The second fitted water temperature of the charger is obtained based on the second water temperature and the second fitted temperature difference. The calculated water temperature of the charger is obtained based on the first fitted water temperature, the second fitted water temperature and the third water temperature reported by the charger. The step of determining the first fitted temperature difference of the charger based on the current opening degree and the current operating condition includes: using the current opening degree and the current operating condition to obtain the first fitted temperature difference from a pre-constructed first fitted curve, wherein the first fitted curve is obtained from the calibration temperature difference value of the charger under at least one water pump opening degree condition. Determining the second fitted temperature difference of the motor controller and drive assembly based on the current opening degree and current operating condition includes: obtaining the second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and current operating condition, wherein the second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive assembly under at least one pump opening degree condition.

2. The method according to claim 1, characterized in that, The step of obtaining the calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature, and the third water temperature reported by the charger includes: The average value of the first fitted water temperature, the second fitted water temperature, and the third water temperature is calculated to obtain the calculated water temperature.

3. The method according to claim 1, characterized in that, After obtaining the calculated water temperature of the charger, the process also includes: The calculated water temperature is reported to a preset terminal as the actual water temperature of the charger, so that the preset terminal can adjust the water pump opening of the vehicle based on the calculated water temperature.

4. A device for detecting the water temperature of a charger, characterized in that, include: The data acquisition module is used to acquire the first water temperature at the inlet of the vehicle's electric drive cooling system and the second water temperature reported by the motor controller and drive components. The determination module is used to obtain the current opening degree of the vehicle water pump and the current operating condition of the vehicle electric drive cooling system, and determine the first fitted temperature difference of the charger and the second fitted temperature difference of the motor controller and drive components based on the current opening degree and the current operating condition. The calculation module is used to obtain the first fitted water temperature of the charger based on the first water temperature and the first fitted temperature difference, obtain the second fitted water temperature of the charger based on the second water temperature and the second fitted temperature difference, and obtain the calculated water temperature of the charger based on the first fitted water temperature, the second fitted water temperature and the third water temperature reported by the charger. The determining module includes: a first acquisition unit, used to acquire the first fitted temperature difference from a pre-constructed first fitted curve using the current opening degree and the current operating condition, wherein the first fitted curve is obtained from the calibration temperature difference of the charger under at least one water pump opening condition; The determining module includes: a second acquisition unit, used to acquire the second fitted temperature difference from a pre-constructed second fitted curve using the current opening degree and the current operating condition, wherein the second fitted curve is obtained from the calibration temperature difference value of the motor controller and drive components under at least one water pump opening condition.

5. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the charger water temperature detection method as described in any one of claims 1-3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the charger water temperature detection method as described in any one of claims 1-3.

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