Method and device for preventing intercooler clogging, vehicle, electronic equipment and medium

Abstract

The present application relates to the technical field of vehicles, and particularly relates to a method and device for preventing the clogging of an intercooler, a vehicle, electronic equipment and a medium. The method for preventing the clogging of the intercooler comprises the following steps: starting an engine; obtaining an engine knock frequency; determining whether the knock frequency is less than a preset frequency; if the knock frequency is less than the preset frequency, opening a second electromagnetic valve, and if the knock frequency is not less than the preset frequency, opening at least a first electromagnetic valve. Since the temperature reduction of the intercooler can cause the icing inside the intercooler or the increase of emulsions, the long-time accumulation can cause the clogging of the intercooler. The knock frequency is obtained and compared with the preset frequency, so as to control the opening of the first electromagnetic valve and / or the second electromagnetic valve according to the actual knock frequency, so as to heat the intercooler or discharge the emulsions according to the actual needs in the winter low-temperature environment, and the clogging of the intercooler is avoided. Moreover, the cooling effect of the intercooler in the summer high-temperature environment is not affected, and the present application has no additional energy loss.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a method and device for preventing the clogging of an intercooler, a vehicle, an electronic device and a medium. BACKGROUND

[0002] In the related art, methanol engines and natural gas engines adopt a technical solution of equivalent combustion + EGR + closed breathing system circulation due to emission requirements. The engine adopting this technical solution produces a large amount of water after combustion. In a low-temperature winter environment, the oil gas and water in the breathing system exhaust gas enter the intercooler through the intake of the supercharger after being pressurized by the supercharger. Since the windward temperature of the intercooler is extremely low, the water vapor condenses into water at this point, and the oil gas and water form oil emulsions, which accumulate for a long time and cause the intercooler to clog.

[0003] Therefore, there is an urgent need for a method for preventing the clogging of an intercooler to solve the above technical problems. SUMMARY

[0004] The purpose of the present application is to provide a method and device for preventing the clogging of an intercooler, a vehicle, an electronic device and a medium.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, a method for preventing the clogging of an intercooler is provided. The intercooler includes an intercooler body, a heating pipeline, a first electromagnetic valve and a second electromagnetic valve. The intercooler body is an empty intercooler. The heating pipeline is arranged in the intercooler body. The inlet of the heating pipeline is in communication with the water outlet of an engine. The outlet of the heating pipeline is in communication with the water inlet of the engine. The first electromagnetic valve is arranged at the bottom of the intercooler body and is in communication with the intercooler body. The second electromagnetic valve is arranged at the inlet of the heating pipeline. The method includes:

[0007] Starting the engine;

[0008] Obtaining the knock frequency of the engine;

[0009] Determining whether the knock frequency is less than a preset frequency;

[0010] If the knock frequency is less than the preset frequency and the water temperature of the engine is higher than a preset temperature, the second electromagnetic valve is opened. If the knock frequency is not less than the preset frequency, at least the first electromagnetic valve is opened.

[0011] As a preferred technical solution of the above method for preventing the intercooler from being blocked, the knock frequency is obtained based on the engine body vibration signal, the engine body vibration signal at least includes the final ignition advance angle and the knock threshold value, the knock frequency = knock actual retard angle / knock allowed maximum retard angle, the knock actual retard angle is the difference between the final ignition advance angle and the base ignition advance angle, and the knock allowed maximum retard angle is a constant value.

[0012] As a preferred technical solution of the above method for preventing the intercooler from being blocked, the engine current speed and the load rate are obtained, and the base ignition advance angle is obtained based on the engine current speed and the load rate.

[0013] As a preferred technical solution of the above method for preventing the intercooler from being blocked, if the first electromagnetic valve releases the emulsified material for a preset time, and the knock frequency is not less than a preset frequency, a warning information is sent out.

[0014] As a preferred technical solution of the above method for preventing the intercooler from being blocked, after the second electromagnetic valve is opened, the method further comprises:

[0015] The pressure at the inlet of the intercooler, the pressure at the outlet of the intercooler and the temperature at the outlet of the intercooler are obtained.

[0016] The pressure difference between the pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler is obtained, and the pressure difference is compared with a preset difference value, and the opening degree of the second electromagnetic valve is adjusted according to the comparison result.

[0017] As a preferred technical solution of the above method for preventing the intercooler from being blocked, if the pressure difference is greater than the preset difference value, the second electromagnetic valve is fully opened.

[0018] If the pressure difference is not greater than the preset difference value and the temperature at the outlet of the intercooler is less than a preset temperature, the second electromagnetic valve is opened to a preset opening degree.

[0019] If the pressure difference is not greater than the preset difference value and the temperature at the outlet of the intercooler is not less than the preset temperature, the opening degree of the second electromagnetic valve is 0.

[0020] In the second aspect, a device for preventing the intercooler from being blocked at low temperature is provided, which adopts the method for preventing the intercooler from being blocked according to any of the above solutions, and comprises:

[0021] The acquisition module is configured to obtain the engine knock frequency.

[0022] The judgment module is configured to judge whether the knock frequency is less than a preset frequency.

[0023] The execution module is configured to open the second electromagnetic valve when the knock frequency is less than the preset frequency and the engine water temperature is higher than a preset temperature, and to at least open the first electromagnetic valve when the knock frequency is not less than the preset frequency.

[0024] In a third aspect, a vehicle is provided, which adopts the method for preventing the intercooler from being blocked according to any one of the preceding aspects.

[0025] In a fourth aspect, an electronic device is provided, which comprises:

[0026] at least one processor; and a memory connected with the at least one processor in communication;

[0027] The memory stores instructions executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of the preceding aspects.

[0028] In a fifth aspect, a computer-readable storage medium is provided, which stores instructions for causing a computer to perform the method according to any one of the preceding aspects.

[0029] The present application has at least the following beneficial effects:

[0030] The method, device, vehicle, electronic device and medium for preventing the intercooler from being blocked provided by the present application can heat the intercooler or discharge the emulsified material according to actual needs in a low-temperature winter environment, so as to avoid the intercooler from being blocked. Moreover, the cooling effect of the intercooler in a high-temperature summer environment is not affected, and the present application does not cause additional energy loss. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the contents of the embodiments of the present application and the drawings without any creative effort.

[0032] Figure 1 The first flow chart of the method for preventing the intercooler from being blocked provided by the embodiments of the present application is shown in the figure.

[0033] Figure 2 The second flow chart of the method for preventing the intercooler from being blocked provided by the embodiments of the present application is shown in the figure.

[0034] Figure 3 The block diagram of the device for preventing the intercooler from being blocked in a low-temperature environment provided by the embodiments of the present application is shown in the figure.

[0035] Figure 4 The block diagram of the electronic device provided by the embodiments of the present application is shown in the figure.

[0036] In the drawings:

[0037] 401, acquisition module; 402, judgment module; 403, execution module;

[0038] 500, electronic device; 501, memory; 502, processor. DETAILED DESCRIPTION

[0039] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0040] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the indirect contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature includes the vertical and oblique upward of the first feature to the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature includes the vertical and oblique downward of the first feature to the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0043] As Figure 1As shown, the embodiment of the present application provides a method for preventing the blockage of the intercooler, the intercooler comprising an intercooler body, a heating pipeline, a first electromagnetic valve and a second electromagnetic valve, the intercooler body being an air-to-air intercooler, the heating pipeline being partially arranged in the intercooler body to heat the intercooler, the inlet of the heating pipeline being communicated with the water outlet of the engine, the outlet of the heating pipeline being communicated with the water inlet of the engine, the first electromagnetic valve being arranged at the bottom of the intercooler body and communicated with the intercooler body, the second electromagnetic valve being arranged at the inlet of the heating pipeline, the method for preventing the blockage of the intercooler comprising:

[0044] S101, starting the engine;

[0045] S102, obtaining the knock frequency of the engine;

[0046] S103, judging whether the knock frequency is less than a preset frequency;

[0047] S104, if the knock frequency is less than the preset frequency and the water temperature of the engine is higher than a preset temperature, opening the second electromagnetic valve, and if the knock frequency is not less than the preset frequency, opening at least the first electromagnetic valve.

[0048] Since the temperature reduction of the intercooler will cause the icing or the increase of the emulsion in the intercooler, the long-time accumulation will cause the blockage of the intercooler, by obtaining the knock frequency and comparing it with the preset frequency, the first electromagnetic valve and / or the second electromagnetic valve are controlled to be opened according to the actual knock frequency, so that the intercooler can be heated or the emulsion can be discharged according to the actual needs in the winter low-temperature environment, thereby avoiding the blockage of the intercooler. Moreover, the cooling effect of the intercooler in the summer high-temperature environment is not affected, and the present application has no additional energy loss.

[0049] After the blockage of the intercooler, the cooling efficiency of the intercooler is deteriorated, which causes the high temperature of the intercooled air and the increase of the knock tendency. One of the reasons for the knock is that there is a hot spot in the cylinder, and theoretically, after the increase of the emulsion in the intercooler, a small amount of oil gas will be brought into the cylinder by the fresh air, which will induce the knock. Therefore, the final ignition advance angle and the body vibration signal are obtained to judge whether there is emulsion in the intercooler.

[0050] The content of the emulsion in the intercooler is positively correlated with the knock frequency of the engine, and the presence of the emulsion in the intercooler can be determined according to the knock frequency of the engine.

[0051] In the present embodiment, the knock frequency is obtained based on the body vibration signal. The knock frequency is positively correlated with the body vibration signal. The body vibration signal at least comprises the final ignition advance angle and the knock threshold value, the knock frequency = knock actual retardation angle / knock allowed maximum retardation angle, the knock actual retardation angle being the difference between the final ignition advance angle and the basic ignition advance angle, and the knock allowed maximum retardation angle being a constant value.

[0052] Before obtaining the engine combustion parameter, the method further comprises: obtaining the engine torque and the engine speed, and obtaining the current engine speed and the load rate; obtaining the basic ignition advance angle based on the current engine speed and the load rate; and obtaining the ignition advance angle or the engine body vibration signal according to the comparison result. When the engine knock tendency is in a certain interval, the engine output torque increases, and when the knock is too severe, the output torque decreases. Therefore, the emulsion is judged according to different engine combustion parameters by comparing the engine torque and the preset torque and according to the development trend of different torques.

[0053] For example, the basic ignition advance angle is output by the calibration MAP of the speed and the load rate, and the final ignition advance angle is output after the knock correction is increased. The load rate is the load rate of the engine.

[0054] The bench calibration stage calibrates the knock threshold MAP under each working condition. When it is detected that the vibration signal of a certain working cycle exceeds the knock threshold, it is judged that the cycle has knock, and the knock correction is performed to delay the ignition advance angle by a fixed step. When there is no knock for a period of time, the ignition advance angle is restored by a fixed step.

[0055] The proportion of knock cycles in a number of cycles, because the more the knock appears in the control, the greater the knock delay angle, so the calculation formula is knock frequency = knock delay angle / maximum allowed knock delay angle. When the knock delay angle reaches the maximum allowed knock delay angle, the knock fault limit torque is reported.

[0056] Under a certain working condition, the basic ignition advance angle is 20 degrees, the maximum allowed knock delay angle is 10 degrees, the knock threshold is 2V, and the knock delay angle step is 2 degrees. When the cycle 1 vibration signal is 2.5V, the threshold knock correction is 2 degrees, and the cycle 2 vibration signal is 2.3V, which still exceeds the threshold, the knock delay angle is 2+2 = 4 degrees, and the final ignition advance angle is 20-4 = 16 degrees. The knock frequency is 4 / 10 = 40%.

[0057] If the first electromagnetic valve releases the emulsion for a preset time, the first electromagnetic valve needs to be closed after the preset time, and then the knock frequency is continuously obtained. If the knock frequency is not less than the preset frequency, the warning device sends a warning information. It reminds the user that the intercooler is seriously blocked and needs to be replaced with a new intercooler.

[0058] In some embodiments, after the second electromagnetic valve is opened, the method further comprises: the liquid inlet of the intercooler is communicated with the water outlet pipe of the engine, and the liquid inlet of the intercooler is provided with the second electromagnetic valve, and the method further comprises:

[0059] After the engine is started, the pressure of the intercooler inlet, the pressure of the intercooler outlet and the temperature of the intercooler outlet are obtained;

[0060] The pressure difference between the pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler is obtained, and the pressure difference is compared with a preset difference value, and the opening of the second electromagnetic valve is adjusted according to the comparison result. Since the local blockage of the intercooler will also change the pressure at the outlet of the intercooler, the pressure difference between the pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler can determine whether the intercooler is blocked, so as to determine whether ice or emulsion exists in the intercooler. The temperature in the intercooler can be increased by adjusting the opening of the second electromagnetic valve, so as to melt the ice or emulsion.

[0061] The pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler are obtained by pressure sensors, and the temperature at the outlet of the intercooler is obtained by a temperature sensor. The pressure sensor and the temperature sensor are electrically connected to the ECU. The ECU calculates the pressure difference after obtaining the pressure, and compares to determine whether the second electromagnetic valve is opened or closed. When the pressure at the inlet of the intercooler is greatly different from the pressure at the outlet of the intercooler, it indicates that the path between the inlet of the intercooler and the outlet of the intercooler is blocked. By obtaining the pressure difference between the pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler, and comparing the pressure difference with a preset difference value, it can be determined whether the intercooler is blocked. The opening of the second electromagnetic valve is adjusted according to the blockage of the intercooler, so as to discharge the emulsion in the blocked intercooler and dredge the internal pipeline of the intercooler.

[0062] If the pressure difference is greater than the preset difference value, the second electromagnetic valve is fully opened. If the pressure difference is greater than the preset difference value, it indicates that the intercooler is blocked, and the second electromagnetic valve needs to be fully opened to increase the flow rate at the second electromagnetic valve, so as to quickly discharge the emulsion in the intercooler or melt the ice, and solve the internal blockage problem of the intercooler.

[0063] In some embodiments, if the pressure difference is not greater than the preset difference value and the temperature at the outlet of the intercooler is less than a preset temperature, it indicates that the intercooler is partially blocked, not completely blocked, and the second electromagnetic valve can be opened by a preset opening at this time to discharge the emulsion in the intercooler.

[0064] In other embodiments, if the pressure difference is not greater than the preset difference value and the temperature at the outlet of the intercooler is not less than a preset temperature, the opening of the second electromagnetic valve is 0. At this time, it indicates that the intercooler is not blocked, and the second electromagnetic valve is in a completely closed state.

[0065] The method for preventing low-temperature blocking of the intercooler provided by the embodiment of the present application determines whether there is emulsion in the intercooler by obtaining an emulsion parameter, removes the emulsion in the intercooler if the emulsion exists, determines whether the intercooler is blocked by the emulsion by comparing the pressure difference with a preset pressure, and opens the first electromagnetic valve to discharge the emulsion from the intercooler if the intercooler is blocked. Thus, the method for preventing low-temperature blocking of the intercooler provided by the present application prevents the intercooler from being blocked by discharging the emulsion. It should be noted that the determination of whether the emulsion exists and the determination of whether the intercooler is blocked are performed simultaneously.

[0066] It should be noted that in some embodiments, when it is determined that the emulsion exists in the intercooler, the first electromagnetic valve and the second electromagnetic valve are opened simultaneously to eliminate the emulsion in the intercooler by discharging the emulsion and increasing the temperature inside the intercooler.

[0067] As shown in FIG. 4, the method comprises the following steps: Figure 2

[0068] S301, starting the engine;

[0069] S302, obtaining the pressure at the inlet of the intercooler, the pressure at the outlet of the intercooler, and the temperature at the outlet of the intercooler;

[0070] S303, obtaining the pressure difference between the pressure at the inlet of the intercooler and the pressure at the outlet of the intercooler;

[0071] S304, comparing whether the pressure difference is greater than a preset difference value, if yes, performing step S305, and if no, performing step S306;

[0072] S305, fully opening the second electromagnetic valve;

[0073] S306, determining whether the temperature at the outlet of the intercooler is less than a preset temperature, if yes, performing step S307, and if no, performing step S308;

[0074] S307, opening the second electromagnetic valve at a preset opening degree;

[0075] S308, completely closing the second electromagnetic valve, and performing step S302.

[0076] The present application also provides a device for preventing low-temperature blocking of the intercooler, which adopts the method for preventing blocking of the intercooler provided by the present application, as shown in FIG. 5. Figure 3 ​As shown, the device comprises an acquisition module 401, a judgment module 402 and an execution module 403, the acquisition module 401 is used for obtaining the engine knock frequency; the judgment module 402 is used for judging whether the knock frequency is less than a preset frequency; the execution module 403 is used for opening the second electromagnetic valve when the knock frequency is less than the preset frequency and the engine water temperature is higher than a preset temperature, and opening at least the first electromagnetic valve when the knock frequency is not less than the preset frequency. Since the temperature reduction of the intercooler can cause the icing or the increase of emulsion in the intercooler, the long-time accumulation can cause the intercooler to be blocked, the knock frequency is acquired and compared with the preset frequency, so as to control the first electromagnetic valve and / or the second electromagnetic valve to open and work according to the actual knock frequency, so that the intercooler is heated or the emulsion is discharged according to the actual need in the winter low-temperature environment, and the intercooler is prevented from being blocked. And the cooling effect of the intercooler in the summer high-temperature environment is not affected, and the present application has no additional energy loss.

[0077] The present application also provides a vehicle adopting the method for preventing the intercooler from being blocked. Since the temperature reduction of the intercooler can cause the icing or the increase of emulsion in the intercooler, the long-time accumulation can cause the intercooler to be blocked, the knock frequency is acquired and compared with the preset frequency, so as to control the first electromagnetic valve and / or the second electromagnetic valve to open and work according to the actual knock frequency, so that the intercooler is heated or the emulsion is discharged according to the actual need in the winter low-temperature environment, and the intercooler is prevented from being blocked. And the cooling effect of the intercooler in the summer high-temperature environment is not affected, and the present application has no additional energy loss.

[0078] The present application also provides an electronic device and a computer readable storage medium.

[0079] Figure 4 A schematic block diagram of an example electronic device that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices such as personal digital assistants, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application described and / or claimed in this document.

[0080] As Figure 4 As shown, the electronic device 500 comprises a memory 501, a processor 502 and a computer program stored in the memory and executable on the processor 502, and the processor 502 implements the method provided by the above-mentioned embodiment when executing the program instructions.

[0081] The computer readable storage medium provided by the embodiment of the present application has a computer program stored thereon, and the program is executed by the processor 502 to implement the method provided by the above embodiment.

[0082] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0083] Program code for carrying out methods of the present application can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program code, when executed by the processor or controller, causes the functions / acts specified in the flowcharts and / or block diagrams to be implemented. The program code can be entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine or entirely on a remote machine or server.

[0084] In the context of the present application, a machine-readable medium can be a tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include but is not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium will include one or more lines of electrical connections, portable computer disks, hard disk drives, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or Flash memory), optical fibers, portable compact disc read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0085] To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0086] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), the Internet, and a blockchain network.

[0087] The computer system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, which solves the defects of large management difficulty and weak business scalability in traditional physical host and VPS service ("Virtual Private Server", or simply "VPS"). The server can also be a server of a distributed system, or a server combined with a blockchain.

[0088] In addition, the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A method of preventing clogging of an intercooler, characterized by, The intercooler includes an intercooler body, a heating pipeline, a first solenoid valve, and a second solenoid valve. The intercooler body is an air-to-air intercooler. The heating pipeline is provided in the intercooler body. The inlet of the heating pipeline is communicated with the water outlet of the engine, and the outlet of the heating pipeline is communicated with the water inlet of the engine. The first solenoid valve is provided at the bottom of the intercooler body and communicates with the intercooler body. The first solenoid valve is used to release the emulsion in the intercooler body. The second solenoid valve is provided at the inlet of the heating pipeline. The method includes: Engine start; Obtain engine knock frequency; Determine whether the knock frequency is less than a preset frequency; If the knock frequency is less than a preset frequency and the engine water temperature is higher than a preset temperature, the second solenoid valve is opened; if the knock frequency is not less than the preset frequency, at least the first solenoid valve is opened; The knock frequency is obtained based on the engine body vibration signal, which includes at least the final ignition advance angle and the knock threshold. The knock frequency = actual knock delay angle / maximum allowable knock delay angle, the actual knock delay angle is the difference between the final ignition advance angle and the basic ignition advance angle, and the maximum allowable knock delay angle is a constant value.

2. The method of claim 1, wherein, Before obtaining the engine knock frequency, the method further includes: obtaining the current engine speed and load rate, and obtaining a basic ignition advance angle by looking up a table based on the current engine speed and load rate.

3. The method of claim 1, wherein, If the knock frequency is not less than a preset frequency after the first solenoid valve is opened for a preset time to release the emulsion, a warning message is issued.

4. The method of claim 1, wherein, After the second solenoid valve is opened, the method further includes: Obtaining the pressure at the intercooler inlet, the pressure at the intercooler outlet, and the temperature at the intercooler outlet; The pressure difference between the pressure at the intercooler inlet and the pressure at the intercooler outlet is obtained, and the pressure difference is compared with a preset difference value, and the opening of the second solenoid valve is adjusted according to the comparison result.

5. The method of claim 4, wherein, Comparing the pressure difference with a preset difference value and adjusting the opening of the second solenoid valve according to the comparison result includes: If the pressure difference is greater than the preset difference, the second solenoid valve is fully opened; If the pressure difference is not greater than the preset difference and the temperature of the intercooler outlet is lower than the preset temperature, the second solenoid valve is opened to a preset opening; If the pressure difference is not greater than the preset difference and the temperature of the intercooler outlet is not less than the preset temperature, the opening degree of the second solenoid valve is 0.

6. Device for preventing low-temperature clogging of an intercooler, characterized in that The method for preventing intercooler blockage according to any one of claims 1 to 5 comprises: An acquisition module, used to obtain engine knock frequency; A judgment module, used to judge whether the knock frequency is less than a preset frequency; The execution module is used to open the second solenoid valve when the knock frequency is less than the preset frequency and the engine water temperature is higher than the preset temperature, and to open at least the first solenoid valve when the knock frequency is not less than the preset frequency.

7. A vehicle characterized by comprising: The method for preventing intercooler blockage according to any one of claims 1 to 5 is adopted.

8. Electronic equipment, including: at least one processor; and a memory communicatively connected to the at least one processor; characterized in that, The memory stores instructions to be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 5.

9. A computer readable storage medium having stored thereon instructions, the method comprising: The instructions are for causing a computer to perform the method of any one of claims 1-5.

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