CN117870903A - Method and device for detecting water temperature of charger, vehicle and storage medium - Google Patents

Abstract

The application relates to a method and a device for detecting the water temperature of a charger, a vehicle and a storage medium, wherein the method comprises the following steps: collecting a first water temperature of a water inlet of an electric drive heat dissipation system of a vehicle and a second water temperature reported by a motor controller and a drive assembly; determining a first fitting temperature difference of a charger and a second fitting temperature difference of a motor controller and a driving assembly according to the current opening of a vehicle water pump and the current operation condition of a vehicle electric driving heat dissipation system; and further obtaining a first fitting water temperature of the charger and a second fitting water temperature of the charger, so as to obtain a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charger. Therefore, the technical problems that in the related art, when the temperature of the charger is sampled by means of the sensor, the acquisition result is abnormal due to various factors, so that the response control of the vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced are solved.

Description

Method and device for detecting water temperature of charger, vehicle and storage medium

Technical Field

The application relates to the technical field of vehicle safety, in particular to a method and a device for detecting the water temperature of a charger, a vehicle and a storage medium.

Background

The charging chance influences the charging property, the drivability and the entertainment of the whole vehicle, and directly influences the user experience, because the reliability and the stability of the charger under different working conditions are very important. The charger can generate a large amount of heat in the working process, and the generated heat is taken away through the water channel cooling liquid, so that the effect of reducing the temperature of the charger is achieved, and the stability and the reliability are improved.

In the related art, a sensor for collecting water temperature is arranged on the wall of a water channel in the charger, the temperature value of the water temperature is detected, and then the cooling water temperature is compared with the calibration temperature of software in the charger, and when the cooling water temperature exceeds the calibration temperature, power limitation is carried out, so that the charger is prevented from being damaged due to overlarge heating value.

However, in the related art, the acquisition result of the water temperature acquisition of the charger is affected by abnormal factors, when the sampling circuit is damaged and cannot be adopted correctly or the sampling error deviation is too large, the charger can trigger error protection or not protection, the whole car is affected, the car cannot be used normally, and the use experience of a user is affected.

Disclosure of Invention

The application provides a detection method, a detection device, a detection vehicle and a detection storage medium for the temperature of a charger, which are used for solving the technical problems that in the related art, when the temperature of the charger is sampled by means of a sensor, the acquisition result is abnormal due to various factors, so that the response control of the vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced.

An embodiment of a first aspect of the present application provides a method for detecting a water temperature of a charger, including the following steps: collecting a first water temperature of a water inlet of an electric drive heat dissipation system of a vehicle and a second water temperature reported by a motor controller and a drive assembly; acquiring the current opening of a vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and determining a first fitting temperature difference of a charger and a second fitting temperature difference of the motor controller and a drive assembly according to the current opening and the current operation condition; and obtaining a first fitting water temperature of the charger based on the first water temperature and the first fitting temperature difference, obtaining a second fitting water temperature of the charger based on the second water temperature and the second fitting temperature difference, and obtaining a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charger.

According to the technical means, the first fitting water temperature of the charger and the second fitting water temperature of the charger can be determined by combining the first water temperature of the water inlet of the vehicle electric drive heat dissipation system, the second water temperature reported by the motor controller and the driving assembly, the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, so that the calculated water temperature of the charger is obtained according to the first fitting water temperature, the second fitting water temperature and the third water temperature reported by the charger, the accuracy of the reported temperature of the charger is improved, the influence of sensor faults on the temperature sampling of the charger is reduced, the probability of vehicle error response is reduced, normal use of the vehicle is ensured, and the use experience of a user is improved.

Optionally, in an embodiment of the present application, the obtaining the calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature, and the third water temperature reported by the charger includes: and calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature to obtain the calculated water temperature.

According to the technical means, the embodiment of the application can obtain the temperature of the battery charger which can be reported actually by calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature, so that the accuracy of reporting the temperature of the battery charger is improved.

Optionally, in an embodiment of the present application, the determining the first fitting temperature difference of the charger according to the current opening and the current operation condition includes: and acquiring the first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by a calibration temperature difference of the charger under at least one water pump opening condition.

According to the technical means, the calibration temperature difference under the current opening and the current operation working condition can be determined by utilizing the first fitting curve constructed in advance, so that the first fitting temperature which is more fit with the actual temperature of the charger is obtained.

Optionally, in an embodiment of the present application, the determining the second fitting temperature difference of the motor controller and the driving assembly according to the current opening and the current operation condition includes: and acquiring the second fitting temperature difference from a second fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly under at least one water pump opening condition.

According to the technical means, the calibration temperature difference under the current opening and the current operation working condition can be determined by utilizing the second fitting curve which is constructed in advance, so that the second fitting temperature which is more fit with the actual temperature of the charger is obtained.

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

According to the technical means, the embodiment of the application can report the actual water temperature of the charger, so that the preset terminal can adjust the opening of the water pump according to the actual water temperature, and normal use of the vehicle is guaranteed.

An embodiment of a second aspect of the present application provides a detection apparatus for a water temperature of a charger, including: the acquisition module is used for acquiring the first water temperature of a water inlet of the vehicle electric drive heat dissipation system and the second water temperature reported by the motor controller and the drive assembly; the determining module is used for acquiring the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and determining a first fitting temperature difference of the charger and a second fitting temperature difference of the motor controller and the drive assembly according to the current opening and the current operation condition; the calculation module is used for obtaining a first fitting water temperature of the charger based on the first water temperature and the first fitting temperature difference, obtaining a second fitting water temperature of the charger based on the second water temperature and the second fitting temperature difference, and obtaining a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charger.

Optionally, in one embodiment of the present application, the computing module includes: and the calculating unit is used for calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature to obtain the calculated water temperature.

Optionally, in one embodiment of the present application, the determining module includes: the first obtaining unit is used for obtaining the first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by a calibration temperature difference of the charger under at least one water pump opening condition.

Optionally, in one embodiment of the present application, the determining module includes: the second obtaining unit is used for obtaining the second fitting temperature difference from a second fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly under at least one water pump opening condition.

Optionally, in one embodiment of the present application, further includes: and the reporting module is used for reporting the calculated water temperature as the actual water temperature of the charger to a preset terminal, so that the preset terminal adjusts the opening of the water pump of the vehicle based on the calculated water temperature.

An embodiment of a third aspect of the present application provides a vehicle, including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the program to realize the method for detecting the water temperature of the charger.

An embodiment of a fourth aspect of the present application provides a computer readable storage medium, where the computer readable storage medium stores computer instructions for causing the computer to execute the method for detecting a water temperature of a battery charger according to the above embodiment.

The beneficial effects of the embodiment of the application are that:

(1) According to the embodiment of the application, the first fitting water temperature of the charger and the second fitting water temperature of the charger can be determined by combining the first water temperature of the water inlet of the vehicle electric drive heat dissipation system, the second water temperature reported by the motor controller and the driving assembly, the current opening of the vehicle water pump and the current operation working condition of the vehicle electric drive heat dissipation system, so that the calculated water temperature of the charger is obtained according to the first fitting water temperature, the second fitting water temperature and the third water temperature reported by the charger, the accuracy of the reported temperature of the charger is improved, the influence of sensor faults on the temperature sampling of the charger is reduced, the probability of vehicle error response is reduced, the normal use of the vehicle is ensured, and the use experience of a user is improved.

(2) According to the embodiment of the application, the first fitting temperature and the second fitting temperature which are more in line with the actual temperature condition of the charger can be obtained through the first fitting curve and the second fitting curve respectively.

(3) According to the embodiment of the application, the actual water temperature of the charger can be reported, so that the preset terminal can adjust the opening of the water pump according to the actual water temperature, and normal use of the vehicle is guaranteed.

Additional aspects and advantages of the 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 the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a flowchart of a method for detecting a water temperature of a charger according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a method for detecting a water temperature of a charger according to one embodiment of the present application;

FIG. 3 is a flow chart of a method of detecting a battery charger water temperature according to one embodiment of the present application;

fig. 4 is a schematic structural diagram of a device for detecting water temperature of a charger according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present application.

Wherein, A1-water inlet, A2-charger, A3-motor controller, driving assembly, A4-water outlet; 10-detecting device of water temperature of the charger, 100-collecting module, 200-determining module and 300-calculating module; 501-memory, 502-processor, 503-communication interface.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

The following describes a method, a device, a vehicle and a storage medium for detecting the water temperature of a charger according to an embodiment of the present application with reference to the accompanying drawings. Aiming at the technical problems that in the related art mentioned in the background art, when the temperature of the charger is sampled by means of a sensor, the acquisition result is abnormal easily caused by various factors, so that the response control of a vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced. Therefore, the technical problems that in the related art, when the temperature of the charger is sampled by means of the sensor, the acquisition result is abnormal due to various factors, so that the response control of the vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced are solved.

Before explaining the method for detecting the water temperature of the charger according to the embodiment of the present application, an exemplary description is given of the vehicle structure according to the embodiment of the present application.

As shown in fig. 1, the vehicle of the embodiment of the present application includes an electrically driven heat dissipation system, wherein the electrically driven heat dissipation system may include: the device comprises a water inlet A1, a charger A2, a motor controller, a driving assembly A3 and a water outlet A4.

In the practical application process, cooling water enters the charger A2 through the water inlet A1, then enters the motor controller and the driving component A3 from the charger A2, and finally passes through the water outlet A4, so that the electric driving heat dissipation system is formed.

Specifically, fig. 2 is a schematic flow chart of a method for detecting a water temperature of a charger according to an embodiment of the present application.

As shown in fig. 2, the method for detecting the water temperature of the charger comprises the following steps:

in step S201, a first water temperature at a water inlet A1 of the vehicle electric drive heat dissipation system and a second water temperature reported by a motor controller and a drive assembly A3 are collected.

In the actual execution process, the embodiment of the application may utilize, for example, a temperature sensor to collect the first water temperature T1 of the water inlet A1 of the vehicle electric drive heat dissipation system and obtain the second water temperature T2 reported by the motor controller and the drive assembly A3.

In step S102, the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system are obtained, and the first fitting temperature difference of the charger A2 and the second fitting temperature difference of the motor controller and the drive assembly A3 are determined according to the current opening and the current operation condition.

In some embodiments, the current opening degree of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system can be obtained, including the current operation condition of the charger A2 and the current operation condition of the motor controller and the drive assembly A3, so that the first fitting temperature difference of the charger A2 is determined according to the current opening degree and the current operation condition of the charger A2, and the second fitting temperature difference of the motor controller and the drive assembly A3 is determined according to the current opening degree and the current operation condition of the motor controller and the drive assembly A3.

The first fitting temperature difference can be understood as a water channel temperature difference between the cooling water inlet A1 and the charger A2, and the second fitting temperature difference can be understood as a water channel temperature difference between the cooling water from the charger A2 and the motor controller and the driving assembly A3.

Optionally, in an embodiment of the present application, determining the first fitting temperature difference of charger A2 according to the current opening and the current operation condition includes: and acquiring a first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by the calibrated temperature difference of the charger A2 under at least one water pump opening condition.

As a possible implementation manner, the embodiment of the application may pre-construct a first fitting curve, where the first fitting curve may be obtained by fitting sample data, and the sample data may be obtained by calibration data under different water pump opening degrees and different operation conditions. Specifically, it can be shown in table 1, wherein table 1 is a sample data table of fitting a temperature difference curve through calibration data.

TABLE 1

Further, the embodiment of the application can obtain the first fitting temperature difference delta T1 of the charger A2 by bringing the current opening and the current operation condition into the first fitting curve.

Optionally, in one embodiment of the present application, determining the second fitting temperature difference of the motor controller and the driving assembly A3 according to the current opening and the current operation condition includes: and obtaining a second fitting temperature difference from a second fitting curve which is constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly A3 under at least one water pump opening condition.

That is, in the embodiment of the present application, a second fitting curve may be further constructed in advance, where the second fitting curve may be obtained by fitting sample data, and the sample data may be obtained by calibration data under different water pump opening degrees and different operation conditions. Specifically, it can be shown in table 2, wherein table 2 is a sample data table of fitting a temperature difference curve through calibration data.

TABLE 2

Further, the embodiment of the application can obtain the second fitting temperature difference delta T2 of the charger A2 by bringing the current opening and the current operation condition into the second fitting curve.

In step S103, a first fitting water temperature of the charger A2 is obtained based on the first water temperature and the first fitting temperature difference, a second fitting water temperature of the charger A2 is obtained based on the second water temperature and the second fitting temperature difference, and a calculated water temperature of the charger A2 is obtained based on the first fitting water temperature, the second fitting water temperature, and a third water temperature reported by the charger A2.

In the actual execution process, the embodiment of the application can obtain the first fitting water temperature of the charger A2, namely T1+ [ delta ] T1, by superposing the first water temperature T1 and the first fitting temperature difference [ delta ] T1; according to the embodiment of the application, the second fitting water temperature of the charger A2, namely T2-DeltaT 2, can be obtained through subtracting the second water temperature T2 and the second fitting temperature DeltaT 2.

According to the method and the device, after the first fitting water temperature and the second fitting water temperature are obtained through calculation, the calculated water temperature of the charger A2 can be obtained through calculation by combining the third water temperature T3 reported by the charger A2.

Optionally, in an embodiment of the present application, obtaining the calculated water temperature of the charger A2 based on the first fitting water temperature, the second fitting water temperature, and the third water temperature reported by the charger A2 includes: and calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature to obtain the calculated water temperature.

The calculating method of the calculated water temperature is that an average value of the first fitting water temperature, the second fitting water temperature and the third water temperature is calculated, so that the temperature of the charger A2 which can be reported actually is obtained, and the accuracy of the final reported temperature of the charger A2 is improved.

Optionally, in one embodiment of the present application, after obtaining the calculated water temperature of charger A2, the method further includes: and 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 opening of the water pump of the vehicle based on the actual water temperature.

As a possible implementation manner, the embodiment of the present application may take the calculated water temperature as the actual water temperature of the charger A2 and report the actual water temperature to a preset terminal, where the preset terminal may be a vehicle terminal, a mobile terminal of a user associated with a vehicle, or a maintenance terminal of a vehicle enterprise.

For example, when the preset terminal is a vehicle terminal, the vehicle according to the embodiment of the present application may determine whether the vehicle needs to perform water pump opening adjustment according to the actual water temperature, and generate a corresponding control instruction to control the water pump of the vehicle to perform opening adjustment when determining that the water pump opening adjustment is required.

Referring to fig. 1 and 3, the working principle of the method for detecting the water temperature of the charger A2 according to the embodiment of the present application will be described in detail in one embodiment. As shown in fig. 3, an embodiment of the present application may include the following steps:

step S301: and detecting the temperature of the water inlet A1, namely the first water temperature TI, through the whole vehicle heat management of the vehicle, and reporting.

Step S302: and obtaining a first fitting temperature difference delta T1 of the electric drive heat dissipation system of the vehicle under the current operation condition of the water pump under the current opening degree by using the first fitting curve.

Step S303: and obtaining the first fitting water temperature of the charger A2, namely T1+ [ delta ] T1, by superposing the first water temperature T1 and the first fitting temperature difference [ delta ] T1.

Step S304: and obtaining the temperature reported by the motor controller and the driving component A3, namely the second water temperature T2.

Step S305: and obtaining a second fitting temperature difference delta T2 of the electric drive heat dissipation system of the vehicle under the current operation condition of the water pump under the current opening degree by using the second fitting curve.

Step S306: and obtaining the second fitting water temperature of the charger A2, namely T2-DeltaT 2, by subtracting the second fitting temperature difference DeltaT 2 from the second water temperature T2.

Step S307: and acquiring the acquired water temperature of the charger A2, namely a third water temperature T3.

Step S308: and calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature, and reporting the average value as the actual water temperature of the charger A2.

To sum up, in the embodiment of the application, the temperature of the water inlet and outlet nozzles through which cooling water flows through each component in the electric drive cooling system can be estimated by calibrating the temperature difference values of the charger A2, the motor controller and the driving component A3 under different working conditions, the heating temperature of the charger A2 is compared with the temperature of the water temperature reported by the charger A2 collected by the charger A2, unqualified data are discarded, the residual data are processed, the estimated water temperature of the charger A2 is obtained and correctly reported, and the adverse experience caused by unprotected or unprotected triggering of the temperature sampling of the power supply is reduced.

According to the method for detecting the water temperature of the charger, the first water temperature of the water inlet of the vehicle electric drive heat dissipation system and the second water temperature reported by the motor controller and the driving assembly can be collected, the first fitting water temperature of the charger and the second fitting water temperature of the charger are determined by combining the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and accordingly the calculated water temperature of the charger is obtained according to the first fitting water temperature, the second fitting water temperature and the third water temperature reported by the charger, accuracy of the reported temperature of the charger is improved, influence of sensor faults on temperature sampling of the charger is reduced, probability of vehicle error response is reduced, normal use of the vehicle is guaranteed, and user experience is improved. Therefore, the technical problems that in the related art, when the temperature of the charger is sampled by means of the sensor, the acquisition result is abnormal due to various factors, so that the response control of the vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced are solved.

Next, a device for detecting the water temperature of the charger according to the embodiment of the application is described with reference to the accompanying drawings.

Fig. 4 is a block schematic diagram of a device for detecting a water temperature of a charger according to an embodiment of the present application.

As shown in fig. 4, the detection device 10 for the water temperature of the battery charger includes: the system comprises an acquisition module 100, a determination module 200 and a calculation module 300.

Specifically, the collection module 100 is configured to collect a first water temperature of a water inlet of the vehicle electric drive heat dissipation system and a second water temperature reported by the motor controller and the driving assembly.

The determining module 200 is configured to obtain a current opening of a vehicle water pump and a current operation condition of a vehicle electrically-driven heat dissipation system, and determine a first fitting temperature difference of the charger and a second fitting temperature difference of the motor controller and the driving assembly according to the current opening and the current operation condition.

The calculation module 300 is configured to obtain a first fitting water temperature of the charger based on the first water temperature and the first fitting temperature difference, obtain a second fitting water temperature of the charger based on the second water temperature and the second fitting temperature difference, and obtain a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature, and a third water temperature reported by the charger.

Optionally, in one embodiment of the present application, the computing module 300 includes: and a calculation unit.

The calculating unit is used for calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature to obtain the calculated water temperature.

Optionally, in one embodiment of the present application, the determining module 200 includes: a first acquisition unit.

The first obtaining unit is used for obtaining a first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by a calibration temperature difference of the charger under at least one water pump opening condition.

Optionally, in one embodiment of the present application, the determining module 200 includes: and a second acquisition unit.

The second obtaining unit is used for obtaining a second fitting temperature difference from a second fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly under at least one water pump opening condition.

Optionally, in one embodiment of the present application, the device 10 for detecting a water temperature of a battery charger further includes: and a reporting module.

The reporting module is used for reporting the calculated water temperature as the actual water temperature of the charger to a preset terminal, so that the preset terminal adjusts the opening of the water pump of the vehicle based on the calculated water temperature.

It should be noted that the foregoing explanation of the embodiment of the method for detecting the water temperature of the battery charger is also applicable to the device for detecting the water temperature of the battery charger of this embodiment, and will not be repeated herein.

According to the detection device for the water temperature of the charger, the first water temperature of the water inlet of the vehicle electric drive heat dissipation system and the second water temperature reported by the motor controller and the driving assembly can be collected, the first fitting water temperature of the charger and the second fitting water temperature of the charger are determined by combining the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and accordingly the calculated water temperature of the charger is obtained according to the first fitting water temperature, the second fitting water temperature and the third water temperature reported by the charger, accuracy of the reported temperature of the charger is improved, influence of sensor faults on temperature sampling of the charger is reduced, probability of vehicle error response is reduced, normal use of the vehicle is guaranteed, and user experience is improved. Therefore, the technical problems that in the related art, when the temperature of the charger is sampled by means of the sensor, the acquisition result is abnormal due to various factors, so that the response control of the vehicle to the abnormal temperature is influenced, and the normal use of the vehicle is influenced are solved.

Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present application. The vehicle may include:

memory 501, processor 502, and a computer program stored on memory 501 and executable on processor 502.

The processor 502 implements the method for detecting the water temperature of the battery charger provided in the above embodiment when executing the program.

Further, the vehicle further includes:

a communication interface 503 for communication between the memory 501 and the processor 502.

Memory 501 for storing a computer program executable on processor 502.

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

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 may be connected to each other via a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.

Alternatively, 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 may perform communication with each other through internal interfaces.

The processor 502 may be a central processing unit (Central Processing Unit, abbreviated as CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC), or one or more integrated circuits configured to implement embodiments of the present application.

The present embodiment also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method for detecting a temperature of a battery charger as described above.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer cartridge (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.

Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.

The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. The method for detecting the water temperature of the charger is characterized by comprising the following steps of:

collecting a first water temperature of a water inlet of an electric drive heat dissipation system of a vehicle and a second water temperature reported by a motor controller and a drive assembly;

acquiring the current opening of a vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and determining a first fitting temperature difference of a charger and a second fitting temperature difference of the motor controller and a drive assembly according to the current opening and the current operation condition;

and obtaining a first fitting water temperature of the charger based on the first water temperature and the first fitting temperature difference, obtaining a second fitting water temperature of the charger based on the second water temperature and the second fitting temperature difference, and obtaining a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charger.

2. The method of claim 1, wherein the obtaining the calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature, and the third water temperature reported by the charger comprises:

and calculating the average value of the first fitting water temperature, the second fitting water temperature and the third water temperature to obtain the calculated water temperature.

3. The method of claim 1, wherein determining a first fitted temperature difference for a charger based on the current opening and current operating conditions comprises:

and acquiring the first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by a calibration temperature difference of the charger under at least one water pump opening condition.

4. The method of claim 1, wherein determining a second fit temperature difference for the motor controller and drive assembly based on the current opening and current operating conditions comprises:

and acquiring the second fitting temperature difference from a second fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly under at least one water pump opening condition.

5. The method of claim 1, further comprising, after obtaining the calculated water temperature for the charger:

and reporting the calculated water temperature as the actual water temperature of the charger to a preset terminal, so that the preset terminal adjusts the opening degree of the water pump of the vehicle based on the calculated water temperature.

6. The utility model provides a detection device of charger temperature which characterized in that includes:

the acquisition module is used for acquiring the first water temperature of a water inlet of the vehicle electric drive heat dissipation system and the second water temperature reported by the motor controller and the drive assembly;

the determining module is used for acquiring the current opening of the vehicle water pump and the current operation condition of the vehicle electric drive heat dissipation system, and determining a first fitting temperature difference of the charger and a second fitting temperature difference of the motor controller and the drive assembly according to the current opening and the current operation condition;

the calculation module is used for obtaining a first fitting water temperature of the charger based on the first water temperature and the first fitting temperature difference, obtaining a second fitting water temperature of the charger based on the second water temperature and the second fitting temperature difference, and obtaining a calculated water temperature of the charger based on the first fitting water temperature, the second fitting water temperature and a third water temperature reported by the charger.

7. The apparatus of claim 6, wherein the means for determining comprises:

the first obtaining unit is used for obtaining the first fitting temperature difference from a first fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the first fitting curve is obtained by a calibration temperature difference of the charger under at least one water pump opening condition.

8. The apparatus of claim 6, wherein the means for determining comprises:

the second obtaining unit is used for obtaining the second fitting temperature difference from a second fitting curve constructed in advance by utilizing the current opening and the current operation condition, wherein the second fitting curve is obtained by the calibration temperature difference of the motor controller and the driving assembly under at least one water pump opening condition.

9. A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of detecting a water temperature of a charger as claimed in any one of claims 1 to 5.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that the program is executed by a processor for realizing the method of detecting the temperature of the water of a battery charger according to any one of claims 1 to 5.