A water cooling control method, device, apparatus and storage medium

Abstract

Embodiments of the present application disclose a water cooling control method, device, equipment and storage medium, wherein the water cooling control method comprises: obtaining an operating parameter of an engine; the operating parameter comprises an engine speed, an engine water temperature and an engine load; determining a current engine operating state based on the operating parameter; and controlling an electronic water pump and an electronic fan to switch to a speed matched with the engine operating state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hybrid vehicle control, and in particular to a water cooling control method, device, equipment and storage medium. BACKGROUND

[0002] An engine is a device that converts chemical energy into mechanical energy through combustion, and a large amount of heat energy is generated in the process. The engine itself must maintain a normal working temperature, so it needs to be equipped with a suitable cooling system. At present, most engine models use mechanical water pumps. The pump speed of the mechanical water pump corresponds to the engine speed at a certain ratio, that is, the cooling water flow is only controlled by the engine speed, and cannot adapt to all working conditions. For example, when slowly climbing, the engine speed is low, the cooling water flow is low, but the thermal load is high, which cannot meet the actual heat dissipation demand of the engine, so that the engine temperature rises and the operating efficiency decreases. The electronic water pump is directly controlled by the engine control unit according to the speed, and is not affected by the engine speed. It can flexibly adjust the cooling water flow according to the actual heat dissipation demand of the engine. In the small flow demand working condition, the output power of the electronic water pump is reduced, which can reduce fuel consumption. In the large flow demand working condition, the output power of the electronic water pump is increased, which can reduce the thermal load, and then increase the intake and advance the ignition angle to improve the torque output.

[0003] With the continuous development of technology, electronic fans and electronic water pumps are increasingly used in cooling systems. However, in the cooling system of the prior art, the control strategy of the electronic fan and the electronic water pump cannot accurately match the cooling effect required by the system. SUMMARY

[0004] Embodiments of the present application aim to provide a water cooling control method, device, equipment and storage medium.

[0005] The technical solution of the present application is as follows:

[0006] An embodiment of the first aspect of the present application provides a water cooling control method, comprising:

[0007] obtaining an operating parameter of an engine; the operating parameter includes engine speed, engine water temperature and engine load;

[0008] determining a current engine operating state based on the operating parameter;

[0009] controlling the electronic water pump and the electronic fan to switch to a speed matched with the engine operating state.

[0010] Optionally, the step of controlling the electronic water pump and the electronic fan to switch to a speed matched with the engine operating state comprises:

[0011] If the current engine operating state is a cold start state, a first mapping relationship table calibrated is queried, and the electronic water pump is controlled to switch to a speed matched with the engine operating state; the first mapping relationship table is calibrated based on engine speed and engine water temperature.

[0012] Optionally, the control of the electronic water pump and the electronic fan switching to the speed matched with the engine operating state comprises:

[0013] If the current engine operating state is a normal load state, a second mapping relationship table and a third mapping relationship table calibrated are queried, and the electronic water pump and the electronic fan are controlled to switch to a speed matched with the engine operating state; the second mapping relationship table is calibrated based on engine load and engine water temperature, and the third mapping relationship table is calibrated based on engine water temperature.

[0014] Optionally, the control of the electronic water pump and the electronic fan switching to the speed matched with the engine operating state comprises:

[0015] If the current engine operating state is an overload state, a second mapping relationship table and a fourth mapping relationship table calibrated are queried, and the electronic water pump and the electronic fan are controlled to switch to a speed matched with the engine operating state; the fourth mapping relationship table is calibrated based on engine water temperature and electronic water pump speed.

[0016] Optionally, the working parameter further comprises an accelerator pedal opening degree; the determination of the current engine operating state based on the working parameter comprises:

[0017] The current engine operating state is determined based on the accelerator pedal opening degree, the engine water temperature and an ambient temperature.

[0018] Optionally, the determination of the current engine operating state based on the working parameter comprises:

[0019] The current engine operating state is determined based on a temperature rise rate corresponding to the engine water temperature.

[0020] Embodiments of the second aspect of the application provide a water cooling control device, comprising:

[0021] An acquisition module is configured to acquire working parameters of an engine; the working parameters comprise engine speed, engine water temperature and engine load;

[0022] A determination module is configured to determine a current engine operating state based on the working parameters;

[0023] A control module is configured to control an electronic water pump and an electronic fan to switch to a speed matched with the engine operating state.

[0024] Optionally, the control module is specifically configured to:

[0025] If the current engine operating state is a cold start state, a calibrated first mapping relationship table is queried, and the electronic water pump is controlled to switch to a speed matching the engine operating state; the first mapping relationship table is calibrated based on engine speed and engine water temperature.

[0026] The embodiment of the third aspect of the application provides an electronic device, including a memory and a processor, the memory stores a computer program, and the processor executes the steps of the method of the first aspect when the computer program is executed.

[0027] The embodiment of the fourth aspect of the application provides a computer readable storage medium, which stores a computer program, and the processor executes the steps of the method of the first aspect when the computer program is executed.

[0028] The embodiment of the application provides a water cooling control method, device, equipment and storage medium, wherein the water cooling control method comprises: acquiring the working parameters of the engine; the working parameters comprise engine speed, engine water temperature and engine load; determining the current engine operating state based on the working parameters; and controlling the electronic water pump and the electronic fan to switch to a speed matching the engine operating state. By using the technical solution of the application, the current engine operating state is determined through the working parameters of the engine, and then the cooling demand can be accurately understood, so that the operation of the electronic fan and the electronic water pump is reasonably controlled, and the cooling effect of the system demand is accurately matched. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A flowchart of a water cooling control method provided by the embodiment of the application is shown;

[0030] Figure 2 A structural diagram of a water cooling control device provided by the embodiment of the application is shown;

[0031] Figure 3 A structural diagram of an electronic device provided by the embodiment of the application is shown. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0033] Moreover, the attached drawings are only schematic and are non-essential for the understanding of the application. Like reference numerals designate identical or corresponding parts throughout the drawings. In the drawings, the size of some of the elements can be exaggerated relative to other elements for clarity. The same reference denotations will be used throughout the drawings and the following description and will refer to the same or like parts. Some of the blocks in the flowcharts shown in the drawings can be implemented in software, or in hardware, or in a combination of software and hardware, or in different network and / or processor devices and / or microcontroller devices.

[0034] The flowcharts shown in the drawings are only exemplary and do not necessarily include all steps. For example, some steps can be broken down, and some steps can be combined or partially combined, so that the actual execution order can be changed according to the actual situation.

[0035] The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the terms "comprise" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of the associated listed items.

[0036] In some embodiments, please refer to Figure 1 , Figure 1 A flowchart of a water cooling control method provided by an embodiment of the application is shown. The water cooling control method comprises:

[0037] In step S110, the working parameters of the engine are obtained. The working parameters include the engine speed, the engine water temperature and the engine load.

[0038] The engine speed is related to the number of work times per unit time or the effective power of the engine, which will affect the heat dissipation per unit time and the engine water temperature. Generally, the engine speed is positively correlated with the engine load.

[0039] In step S120, the current engine operating state is determined based on the working parameters.

[0040] The engine operating state can include a cold start state, a normal load state, and an overload state. The cold start state is a state in which the engine needs to quickly raise the water temperature when the vehicle just performs a cold start process. The normal load state represents a state in which the vehicle operates with a normal load, and the overload state represents a state in which the vehicle operates with an overload. The current engine operating state can be determined based on operating parameters such as the engine speed, the engine water temperature, and the engine load.

[0041] In step S130, the electronic water pump and the electronic fan are controlled to switch to the speed matched with the engine operating state.

[0042] In this embodiment, according to the engine operating state, when the engine operating state is the cold start state, the heat dissipation demand is the smallest, at this time, only relying on the electronic water pump is enough to meet the heat dissipation demand, and the electronic fan does not need to be additionally started. When the engine operating state is the normal load state, the heat dissipation demand is moderate, at this time, the electronic water pump and the electronic fan both operate at a small speed, which can meet the heat dissipation demand. When the engine operating state is the overload state, the heat dissipation demand is large, at this time, the electronic water pump and the electronic fan need to operate at a large speed, which can meet the heat dissipation demand. The electronic water pump and the electronic fan can be calibrated through pre-test, and the matched electronic water pump speed and electronic fan speed in various cases can be obtained through multiple sets of test data.

[0043] In some embodiments, in step S130, the electronic water pump and the electronic fan are controlled to switch to the speed matched with the engine operating state, including:

[0044] If the current engine operating state is the cold start state, a first mapping relationship table is queried, and the electronic water pump is controlled to switch to the speed matched with the engine operating state; the first mapping relationship table is calibrated based on the engine speed and the engine water temperature.

[0045] In this embodiment, since the vehicle just performs a cold start process, the engine water temperature is in a state of rising, and the heat dissipation demand is small, at this time, only relying on the electronic water pump is enough to meet the heat dissipation demand, and the electronic fan does not need to be additionally started. The first mapping relationship table can be obtained by calibrating the historical data of the engine speed, the engine water temperature, and the corresponding electronic water pump speed obtained in advance. The first mapping table includes the mapping relationship among the engine speed, the engine water temperature, and the electronic water pump speed.

[0046] In one example, when the vehicle is just started, the electronic water pump has a speed of 0, and only the cooling water in the engine water channel is heat exchanged, at this time, the cooling water is in a non-flowing state, and the cooling water near the cylinder sleeve heats up faster than the cooling water in other parts. A median prototype can be set at the bench, and temperature sampling is performed based on the median prototype to obtain the heating rate of each part. The specific engine water temperature and the average time required to heat up to the preset threshold can be determined by the heating rate. When the temperature reaches the preset threshold or the time required to heat up to the preset threshold exceeds the median prototype test time, the electronic water pump is started to dissipate heat.

[0047] In some embodiments, step S130, controlling the electronic water pump and the electronic fan to switch to a speed matching the engine operating state, comprises:

[0048] If the current engine operating state is a normal load state, the second mapping relationship table and the third mapping relationship table are queried, and the electronic water pump and the electronic fan are controlled to switch to a speed matching the engine operating state; the second mapping relationship table is calibrated based on the engine load and the engine water temperature, and the third mapping relationship table is calibrated based on the engine water temperature.

[0049] In this embodiment, when the engine operating state is a normal load state, the heat dissipation demand is moderate, at this time, the electronic water pump and the electronic fan are both operated at a small speed, which can meet the heat dissipation demand. By pre-acquiring historical data of the engine load, the engine water temperature, and the corresponding electronic water pump speed, etc. for calibration, a second mapping relationship table can be obtained. The second mapping table includes the mapping relationship between the engine load, the engine water temperature, and the electronic water pump speed. By pre-acquiring historical data of the engine water temperature and the corresponding electronic fan speed, etc. for calibration, a third mapping relationship table can be obtained. The third mapping table includes the mapping relationship between the engine water temperature and the electronic fan speed.

[0050] In some embodiments, step S130, controlling the electronic water pump and the electronic fan to switch to a speed matching the engine operating state, comprises:

[0051] If the current engine operating state is an overload state, the second mapping relationship table and the fourth mapping relationship table are queried, and the electronic water pump and the electronic fan are controlled to switch to a speed matching the engine operating state; the fourth mapping relationship table is calibrated based on the engine water temperature and the electronic water pump speed.

[0052] In the embodiment, when the engine operating state is the overload state, the heat dissipation demand is large, at this time, the electronic water pump and the electronic fan need to operate at a large speed to meet the heat dissipation demand. The fourth mapping relationship table can be obtained by calibrating the historical data of the engine water temperature, the electronic water pump speed and the corresponding electronic fan speed in advance. The fourth mapping table includes the mapping relationship between the engine water temperature, the electronic water pump speed and the electronic fan speed. The second mapping table can refer to the previous embodiment.

[0053] In some embodiments, the working parameter further includes the accelerator pedal opening; in step S120, the current engine operating state is determined based on the working parameter, including:

[0054] The current engine operating state is determined based on the accelerator pedal opening, the engine water temperature and the ambient temperature.

[0055] In the embodiment, the larger the accelerator pedal opening, the greater the power consumption of the engine, and accordingly, the greater the heat generation and the heat dissipation demand. Similarly, the higher the engine water temperature, the greater the heat dissipation demand. The greater the difference between the engine water temperature and the ambient temperature, the greater the heat dissipation demand. Therefore, the current engine operating state can be determined based on the accelerator pedal opening, the engine water temperature and the ambient temperature.

[0056] In one example, a plurality of threshold parameters can be set in advance, if the accelerator pedal opening is less than a first preset threshold, it represents that the engine operating state is the cold start state; if the accelerator pedal opening is greater than the first preset threshold and less than a second preset threshold, it represents that the engine operating state is the normal load state; if the accelerator pedal opening is greater than the second preset threshold, it represents that the engine operating state is the overload state.

[0057] In another example, if the engine water temperature is less than a third preset threshold, it represents that the engine operating state is the cold start state; if the engine water temperature is greater than the third preset threshold and less than a fourth preset threshold, it represents that the engine operating state is the normal load state; if the engine water temperature is greater than the fourth preset threshold, it represents that the engine operating state is the overload state.

[0058] In yet another example, if the temperature difference between the engine water temperature and the ambient temperature is less than a fifth preset threshold, it represents that the engine operating state is the cold start state; if the temperature difference is greater than the fifth preset threshold and less than a sixth preset threshold, it represents that the engine operating state is the normal load state; if the temperature difference is greater than the sixth preset threshold, it represents that the engine operating state is the overload state.

[0059] It should be noted that the first preset threshold, the second preset threshold, the third preset threshold, the fourth preset threshold, the fifth preset threshold and the sixth preset threshold can be determined by test or experience, which is not limited.

[0060] In an optional embodiment, the throttle opening degree, the engine water temperature and the temperature difference between the engine water temperature and the ambient temperature are respectively assigned with corresponding weight coefficients, such as K1, K2 and K3, wherein K1+K2+K3=100%, K1, K2 and K3 can be calibrated in advance through experiments or can be reasonably assigned according to the importance of the three types of parameters to the engine operating state. Thus, the engine operating state can be comprehensively judged based on the three types of parameters, the accuracy of the judgment result is improved, and then the cooling demand can be accurately understood, so that the operation of the electronic fan and the electronic water pump is reasonably controlled and the cooling effect required by the system is accurately matched.

[0061] In some embodiments, the step S120 of determining the current engine operating state based on the working parameters comprises:

[0062] determining the current engine operating state based on the temperature rising rate corresponding to the engine water temperature.

[0063] In the present embodiment, the temperature rising rate of the cooling water at each position in the engine water channel can be obtained based on the median prototype for temperature sampling. The specific engine water temperature and the average time required for rising to the preset threshold can be determined through the temperature rising rate.

[0064] The present application determines the current engine operating state based on the working parameters of the engine, and then the cooling demand can be accurately understood, so that the operation of the electronic fan and the electronic water pump is reasonably controlled and the cooling effect required by the system is accurately matched.

[0065] In some embodiments, the present application provides a water cooling control device, please refer to Figure 2 , Figure 2 a structural schematic diagram of a water cooling control device provided by the present application; the water cooling control device 200 comprises:

[0066] an acquisition module 210, configured to acquire the working parameters of the engine; the working parameters comprise the engine speed, the engine water temperature and the engine load;

[0067] a determination module 220, configured to determine the current engine operating state based on the working parameters;

[0068] a control module 230, configured to control the electronic water pump and the electronic fan to switch to the speed matched with the engine operating state.

[0069] The high or low of the engine speed is related to the number of work times per unit time or the effective power of the engine, which will affect the heat dissipation per unit time and the engine water temperature. Generally, the engine speed is positively correlated with the engine load.

[0070] The engine operating state can include a cold start state, a normal load state, and an overload state. The cold start state is a state in which the engine needs to quickly raise the water temperature when the vehicle just performs a cold start process. The normal load state represents a state in which the vehicle operates with a normal load, and the overload state represents a state in which the vehicle operates with an overload. The current engine operating state can be determined based on operating parameters such as the engine speed, the engine water temperature, and the engine load.

[0071] In the embodiment, according to the engine operating state, when the engine operating state is the cold start state, the heat dissipation demand is the smallest, at this time, only relying on the electronic water pump is enough to meet the heat dissipation demand, and the electronic fan does not need to be additionally started. When the engine operating state is the normal load state, the heat dissipation demand is moderate, at this time, the electronic water pump and the electronic fan both operate at a small speed, and the heat dissipation demand can be met. When the engine operating state is the overload state, the heat dissipation demand is large, at this time, the electronic water pump and the electronic fan need to operate at a large speed, and the heat dissipation demand can be met. The electronic water pump and the electronic fan can be calibrated through pre-test, and the matched electronic water pump speed and electronic fan speed in various cases can be obtained through multiple sets of test data.

[0072] In some embodiments, the control module 230 is specifically configured to:

[0073] If the current engine operating state is the cold start state, a first mapping relationship table that is calibrated is queried, and the electronic water pump is controlled to switch to a speed matched with the engine operating state; the first mapping relationship table is calibrated based on the engine speed and the engine water temperature.

[0074] In the embodiment, since the vehicle just performs a cold start process, the engine water temperature is in a state of rising, and the heat dissipation demand is small, at this time, only relying on the electronic water pump is enough to meet the heat dissipation demand, and the electronic fan does not need to be additionally started. The first mapping relationship table can be obtained by calibrating the historical data of the engine speed, the engine water temperature, and the corresponding electronic water pump speed obtained in advance. The first mapping table includes the mapping relationship among the engine speed, the engine water temperature, and the electronic water pump speed.

[0075] In some embodiments, the control module 230 is specifically configured to:

[0076] If the current engine operating state is the normal load state, a second mapping relationship table and a third mapping relationship table that are calibrated are queried, and the electronic water pump and the electronic fan are controlled to switch to speeds matched with the engine operating state; the second mapping relationship table is calibrated based on the engine load and the engine water temperature, and the third mapping relationship table is calibrated based on the engine water temperature.

[0077] In the embodiment, when the engine operating state is the normal load state, the heat dissipation requirement is moderate, at this time, the electronic water pump and the electronic fan are operated at a small speed, which can meet the heat dissipation requirement. The second mapping table can be obtained by calibrating the historical data of the engine load, the engine water temperature and the corresponding electronic water pump speed in advance. The second mapping table includes the mapping relationship among the engine load, the engine water temperature and the electronic water pump speed. The third mapping table can be obtained by calibrating the historical data of the engine water temperature and the corresponding electronic fan speed in advance. The third mapping table includes the mapping relationship between the engine water temperature and the electronic fan speed.

[0078] In some embodiments, the control module 230 is specifically configured to:

[0079] If the current engine operating state is the overload state, the second mapping table and the fourth mapping table are queried, and the electronic water pump and the electronic fan are switched to the speed matched with the engine operating state; the fourth mapping table is calibrated based on the engine water temperature and the electronic water pump speed.

[0080] In the embodiment, when the engine operating state is the overload state, the heat dissipation requirement is large, at this time, the electronic water pump and the electronic fan need to be operated at a large speed, which can meet the heat dissipation requirement. The fourth mapping table can be obtained by calibrating the historical data of the engine water temperature, the electronic water pump speed and the corresponding electronic fan speed in advance. The fourth mapping table includes the mapping relationship among the engine water temperature, the electronic water pump speed and the electronic fan speed. The second mapping table can refer to the previous embodiment.

[0081] In some embodiments, the determination module 220 is specifically configured to:

[0082] The current engine operating state is determined based on the accelerator pedal opening, the engine water temperature and the ambient temperature.

[0083] In the embodiment, the larger the accelerator pedal opening, the greater the power consumption of the engine, and correspondingly, the greater the heat generation and the heat dissipation requirement. Similarly, the higher the engine water temperature, the greater the heat dissipation requirement. The greater the difference between the engine water temperature and the ambient temperature, the greater the heat dissipation requirement. Therefore, the current engine operating state can be determined based on the accelerator pedal opening, the engine water temperature and the ambient temperature.

[0084] In some embodiments, the determination module 220 is specifically configured to:

[0085] The current engine operating state is determined based on the temperature rise rate corresponding to the engine water temperature.

[0086] In the embodiment, the temperature sampling can be performed based on the median prototype to obtain the temperature rising rates of the cooling water at different positions in the engine water channel. The engine water temperature and the average time required for rising to the preset threshold can be determined according to the temperature rising rates.

[0087] The embodiment of the application determines the current engine operating state according to the operating parameters of the engine, and thus can accurately understand the heat dissipation requirement, so as to reasonably control the operation of the electronic fan and the electronic water pump and accurately match the cooling effect required by the system.

[0088] It should be noted that the above description of the water cooling control device embodiments is similar to the description of the above water cooling control method embodiments, and has similar beneficial effects to the water cooling control method embodiments. For technical details not disclosed in the water cooling control device embodiments of the application, please refer to the description of the water cooling control method embodiments of the application for understanding, which will not be described here.

[0089] The embodiment of the third aspect of the application provides an electronic device, please refer to Figure 3 , Figure 3 The electronic device provided by the embodiment of the application has the structure shown in the figure, which includes a memory and a processor. The memory stores a computer program, and the processor executes the steps of the above water cooling control method when the computer program is executed.

[0090] The electronic device can be a terminal, a server or a similar computing device. The electronic device can have great differences due to different configurations or performances, and can include one or more central processing units (CPUs), including but not limited to microprocessors MCU or programmable logic devices FPGA, a memory for storing data, and one or more storage media (such as one or more mass storage devices) for storing application programs or data. Among them, the memory and the storage medium can be temporary storage or persistent storage. The program stored in the storage medium can include one or more modules, each of which can include a series of instruction operations in the electronic device. Furthermore, the central processing unit can be configured to communicate with the storage medium and execute a series of instruction operations in the storage medium on the electronic device. The electronic device can also include one or more power supplies, one or more wired or wireless network interfaces, one or more input / output interfaces, and / or one or more operating systems, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD, etc. The input / output interface can be used to receive or send data via a network. The above network examples can include a wireless network provided by the communication provider of the electronic device.

[0091] In one example, the input / output interface includes a network interface controller (NIC) that can connect to other network devices through the base station to communicate with the Internet. In one example embodiment, the input / output interface can be a radio frequency (RF) module that can be used to communicate with the Internet through wireless means.

[0092] Those skilled in the art can understand that, Figure 3 The structure shown is only schematic, and does not limit the structure of the electronic device described above. For example, the electronic device can also include more or fewer components than those shown, or have a different configuration of components than those shown. Figure 3 The electronic device described above can also include more or fewer components than those shown, or have a different configuration of components than those shown. Figure 3 The electronic device described above can also include more or fewer components than those shown, or have a different configuration of components than those shown.

[0093] In some embodiments, the present application provides a computer readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the water cooling control method described above are implemented.

[0094] It should be noted that the above description of the electronic device embodiments and the storage medium embodiments is similar to the description of the water cooling control method embodiments, and has similar beneficial effects as the water cooling control method embodiments. For technical details not disclosed in the electronic device embodiments and the storage medium embodiments of the present application, please refer to the description of the water cooling control method embodiments of the present application for understanding, which will not be repeated here.

[0095] In the several embodiments provided by the present application, it should be understood that the disclosed water cooling control method, device, system and storage medium can be implemented by other ways. The above described method, device and system embodiments are only illustrative.

[0096] The water cooling control method, device, electronic device and storage medium described in the embodiments of the present application are only examples of the embodiments described in the present application, but are not limited thereto. As long as the water cooling control method, device, electronic device and storage medium are involved, they are within the protection scope of the present application.

[0097] It is to be understood that the terminology "one embodiment" or "an embodiment" used throughout this specification means that a particular feature, structure or characteristic described is included in at least one embodiment of the application. Therefore, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics can be combined in any suitable manner in one or more embodiments. It is to be understood that the sequence of steps in the above-described processes is not meant to be limiting, and that the sequence of steps should be determined in accordance with the function and logic of the steps rather than the order presented above. The sequence of the above-described embodiments is merely for description, and does not represent the advantages or disadvantages of the embodiments.

[0098] It should be noted that, as used herein, the terms "includes," "including," or "includes" are intended to be open-ended terms that specifically permit the inclusion of other elements not specifically recited. The term "consisting of is intended to be a closed term that does not permit the inclusion of other elements.

[0099] The above description is merely one specific implementation of the application. However, one of ordinary skill in the art will readily recognize that the application can be practiced with modifications to suit particular situations, or it can be implemented in one piece of equipment or multiple equipment. Therefore, the scope of the application should be determined by the following claims.

Claims

1. A water cooling control method characterized by, The method comprises: acquiring working parameters of the engine; the working parameters comprise engine speed, engine water temperature and engine load; determining a current engine operating state based on the working parameters; the engine operating state comprises a cold start state, a normal load state and an overload state; controlling the electronic water pump and the electronic fan to switch to a speed matching the engine operating state, comprising: if the current engine operating state is the cold start state, querying a first mapping relationship table calibrated in advance, and controlling the electronic water pump to switch to a speed matching the engine operating state; if the current engine operating state is the normal load state, querying a second mapping relationship table and a third mapping relationship table calibrated in advance, and controlling the electronic water pump and the electronic fan to switch to speeds matching the engine operating state; if the current engine operating state is the overload state, querying the second mapping relationship table and a fourth mapping relationship table calibrated in advance, and controlling the electronic water pump and the electronic fan to switch to speeds matching the engine operating state; wherein the first mapping relationship table comprises a mapping relationship among the engine speed, the engine water temperature and the electronic water pump speed; the second mapping relationship table comprises a mapping relationship among the engine load, the engine water temperature and the electronic water pump speed; the third mapping relationship table comprises a mapping relationship between the engine water temperature and the electronic fan speed; and the fourth mapping relationship table comprises a mapping relationship among the engine water temperature, the electronic water pump speed and the electronic fan speed.

2. The water cooling control method according to claim 1, characterized by, The working parameters further comprise an accelerator pedal opening degree; and the determining of the current engine operating state based on the working parameters comprises: determining the current engine operating state based on the accelerator pedal opening degree, the engine water temperature and an ambient temperature.

3. The water cooling control method according to claim 1, characterized by, The determining of the current engine operating state based on the working parameters comprises: determining the current engine operating state based on a temperature rise rate corresponding to the engine water temperature.

4. A water cooling control device characterized by comprising: The method comprises: an acquiring module configured to acquire working parameters of the engine; the working parameters comprise engine speed, engine water temperature and engine load; a determining module configured to determine a current engine operating state based on the working parameters; the engine operating state comprises a cold start state, a normal load state and an overload state; a control module configured to control the electronic water pump and the electronic fan to switch to a speed matching the engine operating state, comprising: if the current engine operating state is the cold start state, querying a first mapping relationship table calibrated in advance, and controlling the electronic water pump to switch to a speed matching the engine operating state; if the current engine operating state is the normal load state, querying a second mapping relationship table and a third mapping relationship table calibrated in advance, and controlling the electronic water pump and the electronic fan to switch to speeds matching the engine operating state; if the current engine operating state is the overload state, querying the second mapping relationship table and a fourth mapping relationship table calibrated in advance, and controlling the electronic water pump and the electronic fan to switch to speeds matching the engine operating state; wherein the first mapping relationship table comprises a mapping relationship among the engine speed, the engine water temperature and the electronic water pump speed; the second mapping relationship table comprises a mapping relationship among the engine load, the engine water temperature and the electronic water pump speed; the third mapping relationship table comprises a mapping relationship between the engine water temperature and the electronic fan speed; and the fourth mapping relationship table comprises a mapping relationship among the engine water temperature, the electronic water pump speed and the electronic fan speed. The first mapping relationship table includes a mapping relationship among an engine speed, an engine water temperature and an electronic water pump speed; the second mapping relationship table includes a mapping relationship among an engine load, an engine water temperature and an electronic water pump speed; the third mapping relationship table includes a mapping relationship between an engine water temperature and an electronic fan speed; and the fourth mapping relationship table includes a mapping relationship among an engine water temperature, an electronic water pump speed and an electronic fan speed. 5.An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the steps of the method according to any one of claims 1 to 3. 6.A computer readable storage medium, having stored thereon a computer program, wherein the computer program is executed by a processor to implement the steps of the method according to any one of claims 1 to 3.

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