Method and device for preventing blockage of intercooler, vehicle, electronic equipment and medium

Abstract

The invention relates to the technical field of vehicles, in particular to a method and device for preventing blockage of an intercooler, a vehicle, electronic equipment and a medium. The method for preventing the intercooler from being blocked comprises the steps that an engine is started; engine knock frequency is obtained; judging whether the knock frequency is smaller than a preset frequency; if the knocking frequency is smaller than the preset frequency, the second electromagnetic valve is opened, and if the knocking frequency is not smaller than the preset frequency, at least the first electromagnetic valve is opened. As the temperature of the intercooler is reduced, the interior of the intercooler is iced or emulsions are increased, and the intercooler is blocked due to long-time accumulation, the knocking frequency is obtained and compared with the preset frequency, and the first electromagnetic valve and / or the second electromagnetic valve are / is controlled to be opened to work according to the actual knocking frequency; therefore, the intercooler can be heated or emulsified materials can be discharged according to actual requirements in a low-temperature environment in winter, and the intercooler is prevented from being blocked. And the cooling effect of the intercooler in the high-temperature environment in summer is not affected, and no extra energy loss exists.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a method, device, vehicle, electronic equipment and medium for preventing an intercooler from being blocked. Background Art

[0002] Due to emission requirements, methanol engines and natural gas engines in related technologies mostly adopt the technical solution of equivalent combustion + EGR + closed breathing system circulation. Engines using this technical solution will produce a lot of water after combustion. In the low temperature environment in winter, the oil, gas and water in the exhaust of the breathing system follow the intake of the supercharger and enter the intercooler after being pressurized by the supercharger. Since the windward temperature of the intercooler is extremely low, the water vapor condenses into water here, and the oil, gas and water mix to form an oil emulsion, which accumulates for a long time and causes the intercooler to be blocked.

[0003] Therefore, a method for preventing the intercooler from being blocked is urgently needed to solve the above technical problems. Summary of the invention

[0004] The purpose of the present invention is to provide a method, device, vehicle, electronic equipment and medium for preventing an intercooler from being blocked.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In a first aspect, a method for preventing an intercooler from being blocked is provided, wherein the intercooler comprises an intercooler body, a heating pipeline, a first solenoid valve, and a second solenoid valve, wherein the intercooler body is an air-to-air intercooler, the heating pipeline is arranged in the intercooler body, the inlet of the heating pipeline is communicated with a water outlet of an engine, the outlet of the heating pipeline is communicated with a water inlet of the engine, the first solenoid valve is arranged at the bottom of the intercooler body and communicated with the intercooler, and the second solenoid valve is arranged at the inlet of the heating pipeline, and the method comprises:

[0007] Engine start;

[0008] Obtain engine knock frequency;

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

[0010] If the knock frequency is less than the preset frequency and the engine water temperature is higher than the 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.

[0011] As an optimal technical solution for the above-mentioned method of preventing intercooler blockage, the knock frequency is obtained based on the engine vibration signal, and the engine vibration signal at least includes a final ignition advance angle and a knock threshold, and 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.

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

[0013] As a preferred technical solution of the above-mentioned method for preventing the intercooler from being blocked, if the knock frequency is not less than the preset frequency after the solenoid valve is opened for a preset time to release the emulsion, a warning message is issued.

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

[0015] Obtaining the pressure of the intercooler inlet, the pressure of the intercooler outlet, and the temperature of the intercooler outlet;

[0016] 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.

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

[0018] If the pressure difference is not greater than the preset difference and the temperature of the intercooler outlet is less than the preset temperature, the second solenoid valve is opened to a preset opening;

[0019] 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.

[0020] In a second aspect, a device for preventing low-temperature blockage of an intercooler is provided, and the method for preventing blockage of an intercooler according to any one of the schemes is adopted, comprising:

[0021] An acquisition module, used for obtaining the engine knock frequency;

[0022] A judgment module, used to judge whether the knock frequency is less than a preset frequency;

[0023] The execution module is used to open the second solenoid valve when the knock frequency is less than a preset frequency and the engine water temperature is higher than a preset temperature, and to open at least the first solenoid 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 intercooler blockage described in any of the above schemes.

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

[0026] at least one processor; and a memory communicatively coupled to the at least one processor;

[0027] The memory stores instructions that can 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 described in any one of the schemes.

[0028] According to a fifth aspect, a computer-readable storage medium is provided, on which instructions are stored, wherein the computer instructions are used to enable the computer to execute the method described in any one of the schemes.

[0029] The present invention 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 invention, because the intercooler temperature decreases, ice or emulsions inside the intercooler will increase, and long-term accumulation will cause the intercooler to be blocked. By obtaining the knock frequency and comparing it with the preset frequency, the first solenoid valve and / or the second solenoid valve are controlled to open and work according to the actual knock frequency, so that the intercooler can be heated or the emulsion can be discharged according to actual needs in the low temperature environment in winter, thereby preventing the intercooler from being blocked. It does not affect the cooling effect of the intercooler in the high temperature environment in summer, and the present invention does not cause additional energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0032] Figure 1 A first flow chart of a method for preventing intercooler blockage provided by an embodiment of the present invention;

[0033] Figure 2 A second flow chart of a method for preventing intercooler blockage provided by an embodiment of the present invention;

[0034] Figure 3 A block diagram of a device for preventing low-temperature blockage of an intercooler provided in an embodiment of the present invention;

[0035] Figure 4 A block diagram of an electronic device provided in accordance with an embodiment of the present invention.

[0036] In the figure:

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

[0038] 500. Electronic device; 501. Memory; 502. Processor. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0040] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0043] like Figure 1As shown, an embodiment of the present invention provides a method for preventing an intercooler from being blocked. 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 arranged in the intercooler body to heat the intercooler. The inlet of the heating pipeline is connected to the water outlet of the engine, and the outlet of the heating pipeline is connected to the water inlet of the engine. The first solenoid valve is arranged at the bottom of the intercooler body and is connected to the intercooler. The second solenoid valve is arranged at the inlet of the heating pipeline. The method for preventing the intercooler from being blocked includes:

[0044] S101, engine start;

[0045] S102, obtaining engine knock frequency;

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

[0047] S104: If the knock frequency is less than the preset frequency and the engine water temperature is higher than the 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.

[0048] Since the intercooler temperature decreases, ice or emulsions will accumulate inside the intercooler, and long-term accumulation will cause the intercooler to be blocked. By obtaining the knock frequency and comparing it with the preset frequency, the first solenoid valve and / or the second solenoid valve can be controlled to open and work according to the actual knock frequency, so that the intercooler can be heated or the emulsion can be discharged according to actual needs in the low temperature environment in winter to avoid the blockage of the intercooler. It does not affect the cooling effect of the intercooler in the high temperature environment in summer, and there is no additional energy loss in the present invention.

[0049] When the intercooler is clogged, the cooling efficiency of the intercooler deteriorates, resulting in higher temperatures after the intercooler and an increased tendency to knock. One of the causes of knock is hot spots in the cylinder. In theory, when the emulsion in the intercooler increases, the fresh air entering the cylinder will carry a small amount of oil and gas, inducing knock. To this end, the final ignition advance angle and engine vibration signal are obtained to determine whether there is emulsion in the intercooler.

[0050] The amount of emulsion in the intercooler is positively correlated with the engine knock frequency. The presence of emulsion in the intercooler can be determined based on the engine knock frequency.

[0051] In this 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 includes at least the final ignition advance angle and the knock threshold, and the knock frequency = the actual knock delay angle / the maximum knock delay angle allowed. The actual knock delay angle is the difference between the final ignition advance angle and the basic ignition advance angle, and the maximum knock delay angle allowed is a fixed value.

[0052] Before obtaining the engine combustion parameters, it also includes: obtaining the engine torque and speed, and obtaining the current engine speed and load rate, and obtaining the basic ignition advance angle based on the current engine speed and load rate. The ignition advance angle or the body vibration signal is obtained according to the comparison result. When the engine knock tendency is large to a certain range, the engine output torque will increase. When the knock is too serious, the output torque will decrease. To this end, 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 base ignition advance angle is output through the calibrated MAP of the speed and load rate, and the final ignition advance angle is output after adding the knock correction. The load rate is the load rate of the engine.

[0054] During the bench calibration phase, the knock threshold MAP under various working conditions will be calibrated. When the vibration signal of a certain working cycle is detected to exceed the knock threshold, it is determined that there is knock in the cycle, and knock correction is performed to delay the ignition advance angle by a fixed step length. When there is no knock for a period of time, the ignition advance angle is restored by a fixed step length.

[0055] The proportion of knock cycles in several cycles. Because the more knocks occur in control, the larger the knock delay angle is, so the calculation formula is knock frequency = knock delay angle / maximum allowable knock delay angle. When the knock delay angle reaches the maximum allowable knock delay angle, the knock fault torque limit will be reported.

[0056] Under certain working conditions, the basic ignition advance angle is 20 degrees, the maximum allowable knock retreat angle is 10 degrees, the knock threshold is 2V, and the knock delay step is 2 degrees. When the cycle 1 vibration signal is 2.5V, the over-threshold knock correction is 2 degrees, and the cycle 2 vibration signal is 2.3V, which is still over-threshold. At this time, the knock delay retreat 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 solenoid valve is opened for a preset time to release the emulsion, the first solenoid valve needs to be closed after the preset time, and then the knock frequency continues to be obtained, and the knock frequency is not less than the preset frequency, a warning message is issued through the warning device to remind the user that the intercooler is seriously blocked and needs to be replaced with a new one.

[0058] In some embodiments, after the second solenoid valve is opened, the method further includes: the liquid inlet of the intercooler is connected to the water outlet pipe of the engine, and the liquid inlet of the intercooler is provided with the second solenoid valve, and the method further includes:

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

[0060] 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 the preset difference value, and the opening of the second solenoid valve is adjusted according to the comparison result. Since the pressure at the intercooler outlet will also change if the intercooler is partially blocked, the pressure difference between the pressure at the intercooler inlet and the pressure at the intercooler outlet can be used to determine whether the intercooler is blocked, so as to judge whether ice or emulsion exists in the intercooler. The temperature in the intercooler can be increased by the opening of the second solenoid valve to melt the ice or emulsion.

[0061] The pressure at the intercooler inlet and the pressure at the intercooler outlet are obtained through the pressure sensor, while the temperature at the intercooler outlet is obtained through the temperature sensor. Both the pressure sensor and the temperature sensor are electrically connected to the ECU. After obtaining the pressure, the ECU calculates the pressure difference and makes a comparison to control the opening and closing of the second solenoid valve. When the pressure at the intercooler inlet differs greatly from the pressure at the intercooler outlet, it means that the path between the intercooler inlet and the intercooler outlet is blocked. By obtaining the pressure difference between the pressure at the intercooler inlet and the pressure at the intercooler outlet, and comparing the pressure difference with the preset difference, it can be determined whether the intercooler is blocked. According to the blockage of the intercooler, the opening of the second solenoid valve can be adjusted, so that the emulsion blocking the intercooler can be discharged and the internal pipeline of the intercooler can be unblocked.

[0062] Among them, if the pressure difference is greater than the preset difference, the second solenoid valve is fully opened; if the pressure difference is greater than the preset difference, it indicates that the intercooler is blocked, and the second solenoid valve needs to be fully opened to increase the flow rate at the second solenoid valve to discharge the emulsion in the intercooler or melt the ice as soon as possible to solve the problem of internal blockage of the intercooler.

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

[0064] In some other embodiments, 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 of the second solenoid valve is 0. This indicates that there is no blockage in the intercooler, and the second solenoid valve is in a fully closed state.

[0065] The method for preventing low-temperature blockage of the intercooler provided by the embodiment of the present invention determines whether there is emulsion in the intercooler by obtaining emulsion parameters, and if there is emulsion, the emulsion in the intercooler is discharged, and the pressure difference is compared with the preset pressure to determine whether the intercooler is blocked by the emulsion. If it is blocked, the first solenoid valve is opened to discharge the emulsion out of the intercooler. In this way, the method for preventing low-temperature blockage of the intercooler provided by the present invention prevents the blockage of the intercooler by discharging the emulsion. It should be noted that the determination of whether there is emulsion and whether the intercooler is blocked are performed simultaneously.

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

[0067] like Figure 2 As shown, the method comprises the following steps:

[0068] S301, engine start;

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

[0070] S303, obtaining a pressure difference between a pressure at an intercooler air inlet and a pressure at an intercooler air outlet;

[0071] S304, comparing whether the pressure difference is greater than a preset difference, if so, executing step S305, if not, executing step S306;

[0072] S305, the second solenoid valve is fully opened;

[0073] S306, determining whether the temperature of the air outlet of the intercooler is less than a preset temperature, if so, executing step S307, if not, executing step S308;

[0074] S307, the second solenoid valve is opened to a preset opening;

[0075] S308: The second solenoid valve is completely closed, and step S302 is executed.

[0076] The present invention also provides a device for preventing low-temperature blockage of an intercooler. The method for preventing blockage of an intercooler provided by the present invention is used. Figure 3As shown, the device includes an acquisition module 401, a judgment module 402 and an execution module 403. The acquisition module 401 is used to obtain the engine knock frequency; the judgment module 402 is used to judge whether the knock frequency is less than the preset frequency; the execution module 403 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 at least open the first solenoid valve when the knock frequency is not less than the preset frequency. Since the temperature of the intercooler decreases, ice or emulsions inside the intercooler will increase, and long-term accumulation will cause the intercooler to be blocked. By acquiring the knock frequency and comparing it with the preset frequency, the first solenoid valve and / or the second solenoid valve are controlled to open and work according to the actual knock frequency, so that the intercooler can be heated or the emulsion can be discharged according to actual needs in the low temperature environment in winter to avoid the blockage of the intercooler. It does not affect the cooling effect of the intercooler in the high temperature environment in summer, and the present invention has no additional energy loss.

[0077] The present invention also provides a vehicle, which adopts the method for preventing the intercooler from being blocked provided by this embodiment. Since the temperature of the intercooler decreases, ice or emulsions inside the intercooler will be formed, and long-term accumulation will cause the intercooler to be blocked. By obtaining the knock frequency and comparing it with the preset frequency, the first solenoid valve and / or the second solenoid valve are controlled to open and work according to the actual knock frequency, so that the intercooler can be heated or the emulsion can be discharged according to actual needs in the low temperature environment in winter, so as to avoid the blockage of the intercooler. It does not affect the cooling effect of the intercooler in the high temperature environment in summer, and the present invention does not have additional energy loss.

[0078] The invention 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 an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0080] like Figure 4 As shown, the electronic device 500 includes a memory 501, a processor 502, and a computer program stored in the memory and executable on the processor 502. When the processor 502 executes the program instructions, the method provided in the above embodiment is implemented.

[0081] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by the processor 502, the method provided in the above embodiment is implemented.

[0082] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0083] The program code for implementing the method itself can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0084] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0085] To provide interaction with a user, the systems and techniques described herein 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 pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the 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 input, voice input, or tactile input).

[0086] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a grid browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication grid). Examples of communication grids include: a local area network (LAN), a wide area network (WAN), the Internet, and a blockchain grid.

[0087] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication grid. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short). The server may also be a server for a distributed system, or a server combined with a blockchain.

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

Claims

1. A method for preventing an intercooler from being blocked, characterized in that: The intercooler comprises 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 arranged on the intercooler body. The inlet of the heating pipeline is communicated with the water outlet of the engine. The outlet of the heating pipeline is communicated with the water inlet of the engine. The first solenoid valve is arranged at the bottom of the intercooler body and communicated with the intercooler. The second solenoid valve is arranged at the inlet of the heating pipeline. The method comprises: Engine start; Obtain engine knock frequency; Determine whether the knock frequency is less than a preset frequency; If the knock frequency is less than the preset frequency and the engine water temperature is higher than the 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.

2. The method for preventing intercooler blockage according to claim 1, characterized in that: The knock frequency is obtained based on a body vibration signal, and the body vibration signal at least includes a final ignition advance angle and a 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.

3. The method for preventing intercooler blockage according to claim 2, characterized in that: Before obtaining the engine knock frequency, the method also includes: obtaining the current engine speed and load rate, and obtaining the basic ignition advance angle by looking up a table based on the current engine speed and load rate.

4. The method for preventing intercooler blockage according to claim 2, characterized in that: If the knock frequency is not less than the preset frequency after the solenoid valve is opened for the preset time to release the emulsion, a warning message will be issued.

5. The method for preventing intercooler blockage according to claim 1, characterized in that: After the second solenoid valve is turned on, the method further includes: Obtaining the pressure of the intercooler inlet, the pressure of the intercooler outlet, and the temperature of 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.

6. The method for preventing intercooler blockage according to claim 5, characterized in that: 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 less 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.

7. A device for preventing low-temperature blockage of an intercooler, characterized in that: The method for preventing intercooler blockage according to any one of claims 1 to 6 comprises: An acquisition module, used for obtaining the 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 a preset frequency and the engine water temperature is higher than a preset temperature, and to open at least the first solenoid valve when the knock frequency is not less than the preset frequency.

8. A vehicle, characterized in that: The method for preventing intercooler blockage according to any one of claims 1 to 6 is adopted.

9. 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 that can 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 6.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: The computer instructions are used to make the computer execute the method according to any one of claims 1-6.

Images