Automatic maintenance method, system and equipment of engine air filter and storage medium

Abstract

The invention discloses an automatic maintenance method, system and equipment for an engine air filter and a storage medium, and relates to the technical field of automatic cleaning of air filters, and the method comprises the steps that the air inlet flow of an engine at the first moment is converted into the first air inlet flow under the standard working condition; a table is looked up according to the rotating speed and the load rate of the engine, and the first reference air inflow, corresponding to the rotating speed and the load rate of the engine at the first moment, under the standard working condition is obtained; calculating a target cleaning strategy of the air filter of the engine according to a first ratio between the first air inlet flow and the first reference air inlet flow; and the air filter cleaning system is controlled to clean an air filter of the engine according to the target cleaning strategy. According to the invention, effective and accurate automatic maintenance of the air filter is realized through reliable technical parameters and logic, the hysteresis of manual maintenance is reduced, the service time of the air filter is prolonged, and the replacement time of the air filter is prolonged. And the faults of engine damage and power reduction caused by untimely maintenance are effectively solved.

Description

Background Art

[0002] The engine air filter serves as a cleaning device for the engine air intake and needs to be cleaned and maintained regularly to prevent poor engine air intake due to a dirty air filter. Poor quality of inhaled air can lead to reduced engine power and internal damage.

[0003] At present, the technology mainly relies on manual removal of the air filter element and cleaning of the air filter element to ensure that the air filter can function normally; or manually operate the maintenance switch to clean the air filter through the instructions of the electronic alarm, which has problems such as low efficiency and untimely cleaning. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the prior art and specifically provide an automatic maintenance method, system, device and storage medium for an engine air filter, as follows:

[0005] 1) In the first aspect, the present invention provides an automatic maintenance method for an engine air filter, and the specific technical solution is as follows:

[0006] Converting the intake air flow rate of the engine at the first moment into the first intake air flow rate under the standard working condition;

[0007] According to the engine speed and load rate table, a first reference intake air volume corresponding to the engine speed and load rate at the first moment under the standard working condition is obtained;

[0008] calculating a first ratio between a first intake air flow rate and a first reference intake air amount;

[0009] When the first ratio is less than a preset ratio threshold, determining a target cleaning strategy for the air filter of the engine according to the first ratio;

[0010] Control the air filter cleaning system to clean the engine air filter according to the target cleaning strategy.

[0011] The beneficial effects of the automatic maintenance method of an engine air filter provided by the present invention are as follows:

[0012] Through reliable technical parameters and logic, the air filter can be effectively and accurately maintained automatically, reducing the lag of manual maintenance, extending the service life of the air filter, and extending the replacement time of the air filter. It effectively solves the problem of engine damage and power reduction caused by untimely maintenance.

[0013] On the basis of the above scheme, the automatic maintenance method of an engine air filter of the present invention can also be improved as follows.

[0014] Furthermore, before cleaning the engine air filter, it also includes:

[0015] Obtaining and determining whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtaining a first determination result;

[0016] Control the air filter cleaning system to clean the engine air filter according to the target cleaning strategy, including:

[0017] When the first judgment result is no, the air filter cleaning system is controlled to clean the air filter of the engine according to the target cleaning strategy.

[0018] The beneficial effect of adopting the above further solution is that when the gas pressure in the engine is not greater than the upper limit of the gas pressure in the cleaning requirement, the air filter of the engine is cleaned to ensure safety.

[0019] Furthermore, it also includes:

[0020] When the first judgment result is yes, the gas pressure in the engine is adjusted until the gas pressure in the engine is not greater than the upper limit of the gas pressure in the cleaning requirement.

[0021] Furthermore, it also includes:

[0022] converting the intake air flow rate of the engine at the second moment into the second intake air flow rate under the standard working condition, after the air filter of the engine is cleaned according to the target cleaning strategy at the second moment;

[0023] According to the engine speed and load rate table, a second reference intake air volume corresponding to the engine speed and load rate at the second moment under the standard working condition is obtained;

[0024] calculating a second ratio between the second intake air flow rate and the second reference intake air amount;

[0025] Determine whether the second ratio is greater than a preset ratio threshold value, and obtain a second determination result;

[0026] When the second judgment result is yes, it is determined that the cleaning result of the air filter meets the expected requirements.

[0027] The beneficial effect of adopting the above further scheme is that it can automatically determine whether the cleaning result of the air filter meets the expected requirements, and the degree of automation is high.

[0028] 2) In the second aspect, the present invention also provides an automatic maintenance system for an engine air filter, and the specific technical solution is as follows:

[0029] It includes: a first intake air flow conversion module, a first reference intake air volume acquisition module, a first ratio calculation module, a cleaning strategy determination module and a cleaning control module;

[0030] The first intake air flow conversion module is used to: convert the intake air flow of the engine at the first moment into the first intake air flow under the standard working condition;

[0031] The first reference intake air volume acquisition module is used to: obtain the first reference intake air volume under standard working conditions corresponding to the engine speed and load rate at the first moment according to the engine speed and load rate table;

[0032] The first ratio calculation module is used to calculate a first ratio between the first intake air flow rate and the first reference intake air flow rate;

[0033] The cleaning strategy determination module is used to: when the first ratio is less than a preset ratio threshold, determine a target cleaning strategy for the air filter of the engine according to the first ratio;

[0034] The cleaning control module is used to control the air filter cleaning system to clean the engine air filter according to the target cleaning strategy.

[0035] On the basis of the above scheme, the automatic maintenance system of an engine air filter of the present invention can also be improved as follows.

[0036] Furthermore, it also includes a first gas pressure determination module;

[0037] The first gas pressure judgment module is used to: before cleaning the air filter of the engine, obtain and judge whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtain a first judgment result;

[0038] The cleaning control module is specifically used to: when the first judgment result is no, control the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy.

[0039] Furthermore, it also includes a gas pressure regulating module, which is used to: when the first judgment result is yes, adjust the gas pressure in the engine until the gas pressure in the engine is no greater than the upper limit of the gas pressure in the cleaning requirement.

[0040] Furthermore, it also includes: a second intake air flow conversion module, a second reference intake air volume acquisition module, a second ratio calculation module, a second gas pressure judgment module and a cleaning result judgment module;

[0041] The second intake air flow conversion module is used to: convert the intake air flow of the engine at the second moment into the second intake air flow under the standard working condition, after the air filter of the engine is cleaned according to the target cleaning strategy at the second moment;

[0042] The second reference intake air volume acquisition module is used to: obtain the second reference intake air volume under standard working conditions corresponding to the engine speed and load rate at the second moment according to the engine speed and load rate table;

[0043] The second ratio calculation module is further used to: calculate a second ratio between the second intake air flow rate and the second reference intake air volume;

[0044] The second gas pressure judgment module is used to: judge whether the second ratio is greater than a preset ratio threshold value, and obtain a second judgment result;

[0045] The cleaning result judgment module is used to: when the second judgment result is yes, determine that the cleaning result of the air filter meets the expected requirements.

[0046] 3) In a third aspect, the present invention further provides an electronic device, comprising a processor, the processor being coupled to a memory, the memory storing at least one computer program, the at least one computer program being loaded and executed by the processor, so that the electronic device implements any of the above-mentioned methods for automatically maintaining an engine air filter.

[0047] 4) In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, any of the above-mentioned methods for automatically maintaining an engine air filter is implemented.

[0048] It should be noted that the beneficial effects achieved by the technical solutions of the second to fourth aspects of the present invention and the corresponding possible implementation methods can be found in the above-mentioned technical effects of the first aspect and its corresponding possible implementation methods, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention:

[0050] Figure 1 A schematic flow chart of an automatic maintenance method for an engine air filter according to an embodiment of the present invention;

[0051] Figure 2 A schematic structural diagram of an automatic maintenance system for an engine air filter according to an embodiment of the present invention;

[0052] Figure 3 The figure is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0053] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0054] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0055] like Figure 1 As shown, an automatic maintenance method for an engine air filter according to an embodiment of the present invention comprises the following steps:

[0056] S1. Converting the intake air flow rate of the engine at the first moment into the first intake air flow rate under the standard working condition.

[0057] Among them, the air pressure in the standard working condition is the standard atmospheric pressure, and the temperature in the standard working condition is the preset ambient temperature. The preset ambient temperature can be 25°C. The air pressure and temperature in the standard working condition can also be set according to actual conditions.

[0058] In S1, the intake flow rate of the engine at the first moment is converted into a first intake flow rate under standard operating conditions, specifically, the intake flow rate of the engine at the first moment is converted into a first intake flow rate under the air pressure and temperature in the standard operating conditions, for example, the intake flow rate of the engine at the first moment is converted into a first intake flow rate under standard atmospheric pressure and 25°C.

[0059] The first intake air flow rate is specifically calculated by the following formula:

[0060] Q f =Q 1 ×P / (P 1 ×T 1 )×(T 0 +273.15) / (T 1 +273.15)

[0061] Among them, Q f Indicates: First intake air flow, Q 1 represents: the intake flow rate of the engine at the first moment (also known as the first operating condition flow rate), P represents: the air pressure in the standard operating condition, P 1 Indicates: the actual air pressure at the engine location at the first moment, T 1 Indicates: At the first moment, the actual ambient temperature at the location of the engine, T 0 Indicates: Temperature under standard operating conditions.

[0062] Among them, the intake flow rate of the engine at the first moment is collected by a flow sensor, the actual pressure of the engine at the first moment is collected by a gas pressure sensor, and the actual temperature of the engine at the first moment is collected by an intake temperature sensor.

[0063] S2. Look up a table based on the engine speed and load rate to obtain a first reference intake air volume under standard working conditions corresponding to the engine speed and load rate at the first moment;

[0064] The engine speed and load rate lookup table is obtained in advance, and the engine speed and load rate lookup table includes: the reference intake volume of the engine at different speeds and different load rates.

[0065] The rotation speed of the engine at the first moment is acquired by a rotation speed sensor, and the load rate of the engine at the first moment is acquired by analyzing an engine load rate signal.

[0066] S3. Calculate a first ratio between the first intake air flow rate and the first reference intake air flow rate, which is calculated by the following formula:

[0067] λ 1 =Q f / Q j1

[0068] Among them, λ 1 Indicates: First ratio, Q j1 Indicates: the first reference air intake volume.

[0069] S4. When the first ratio is less than a preset ratio threshold, determine a target cleaning strategy for the engine air filter according to the first ratio.

[0070] Among them, when the first ratio is less than the preset ratio threshold, the target cleaning strategy with different cleaning times is determined according to the first ratio. For example, the preset ratio threshold is 0.8. When the largest ratio is greater than the preset ratio threshold, the air filter does not need to be cleaned. If there is no cleaning strategy, when the first ratio is less than 0.8, the target cleaning strategy is: clean the air filter once. When the first ratio is between 0.6 and 0.7, the target cleaning strategy is: clean the air filter twice. When the first ratio is less than 0.6, the target cleaning strategy is: clean the air filter three times. According to the actual situation and the different first ratios, target cleaning strategies with different cleaning times can also be set.

[0071] S5. Control the air filter cleaning system to clean the engine air filter according to the target cleaning strategy.

[0072] Among them, the air filter cleaning system refers to the actuator for automatic air filter maintenance, which uses compressed air to blow the air filter element to blow dust away from the air filter element.

[0073] In another embodiment, the air filter cleaning system includes: an intake duct, an air filter cover, an air filter housing and a filter element, wherein the intake duct is used to introduce external air, the air filter cover is used to protect the internal components of the filter to prevent dust and impurities from entering, the air filter housing is used to provide support and protection for the filter element to ensure the integrity of the air filter structure, and the filter element is used to filter dust and impurities in the air. According to the structural form, the filter element can be divided into two types: dry and wet. Dry filter element: usually made of paper material, has excellent filtering performance, and can effectively intercept particulate matter in the air. Wet filter element: usually composed of a metal mesh soaked in engine oil, and further filters fine dust particles in the air through the adsorption effect of the engine oil.

[0074] The present invention realizes effective and accurate automatic maintenance of the air filter through reliable technical parameters and logic, reduces the lag of manual maintenance, prolongs the service life of the air filter, and prolongs the replacement time of the air filter. It effectively solves the engine damage and power reduction caused by untimely maintenance.

[0075] Optionally, in S5, before cleaning the air filter of the engine, the step further includes:

[0076] Obtaining and determining whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtaining a first determination result;

[0077] Control the air filter cleaning system to clean the engine air filter according to the target cleaning strategy, including:

[0078] When the first judgment result is no, the air filter cleaning system is controlled to clean the air filter of the engine according to the target cleaning strategy.

[0079] When the gas pressure in the engine is not greater than the upper limit of the gas pressure in the cleaning requirements, cleaning the engine air filter can ensure safety.

[0080] Optionally, in the above technical solution, before cleaning the air filter of the engine, the method further comprises:

[0081] The equipment including the engine, such as the vehicle, is turned off, and after the cleaning is completed, the cleaning information including the cleaning result, cleaning time, etc. is recorded.

[0082] When the first judgment result is yes, the gas pressure in the engine is adjusted until the gas pressure in the engine is not greater than the upper limit of the gas pressure in the cleaning requirement.

[0083] Optionally, in the above technical solution, it also includes:

[0084] S6, converting the intake air flow rate of the engine at the second moment into a second intake air flow rate under the standard working condition, after the air filter of the engine is cleaned according to the target cleaning strategy at the second moment;

[0085] After the engine air filter is cleaned according to the target cleaning strategy, S6 is executed immediately. The time between the second moment and the moment when the engine air filter is cleaned according to the target cleaning strategy does not exceed the preset time threshold. The preset time threshold can be 1 minute, and can also be set according to actual conditions.

[0086] Among them, converting the intake flow rate of the engine at the second moment into a second intake flow rate under standard operating conditions specifically refers to: converting the intake flow rate of the engine at the second moment into a second intake flow rate at the air pressure and temperature in standard operating conditions, for example, converting the intake flow rate of the engine at the second moment into a second intake flow rate at standard atmospheric pressure and 25°C.

[0087] The second intake air flow rate is specifically calculated by the following formula:

[0088] Q s =Q 2 ×P / (P 2 ×T 2 )×(T 0 +273.15) / (T 2 +273.15)

[0089] Among them, Q s Indicates: Second intake air flow, Q 2 It means: the intake flow rate of the engine at the second moment (also called the second working condition flow rate), P 2 Indicates: the actual air pressure at the engine location at the second moment, T 2 Indicates: the actual ambient temperature of the engine at the second moment.

[0090] Among them, the intake flow rate of the engine at the second moment is collected by a flow sensor, the actual pressure of the engine at the second moment is collected by a gas pressure sensor, and the actual temperature of the engine at the second moment is collected by an intake temperature sensor.

[0091] S7, looking up a table according to the engine speed and load rate to obtain a second reference intake air volume under standard working conditions corresponding to the engine speed and load rate at the second moment;

[0092] The rotation speed of the engine at the second moment is acquired by a rotation speed sensor, and the load rate of the engine at the second moment is acquired by analyzing an engine load rate signal.

[0093] S8, calculating a second ratio between the second intake air flow rate and the second reference intake air volume;

[0094] S9, determining whether the second ratio is greater than a preset ratio threshold, and obtaining a second determination result;

[0095] S10. When the second judgment result is yes, it is determined that the cleaning result of the air filter meets the expected requirements. For example, in the expected requirements, the second ratio is required to be not less than 0.8. If the second ratio is less than 0.8, an alarm message for reminding "replace the filter element of the air filter immediately" is issued through the instrument.

[0096] In another embodiment, multiple first preset moments are determined, any first preset moment is taken as the first moment, S1 to S3 are repeatedly executed to obtain the first ratio corresponding to the first preset moment, each first preset moment is traversed to obtain the first ratio corresponding to each first preset moment, the proportion of the first ratio greater than the preset ratio threshold in all first ratios is determined, and it is judged whether the proportion exceeds the first proportion threshold. If so, no cleaning is required. If not, the target cleaning strategy of the engine air filter is determined based on the maximum first ratio, the minimum first ratio or the average of all first ratios, wherein the first proportion threshold can be 80% or 90%, etc., which can be set according to actual conditions.

[0097] Among them, during the operation of the engine, multiple first preset moments arranged in a periodic manner are determined. For example, a first preset moment is determined every 5 minutes, and then S1 to S3 are executed. At each first preset moment, S1 to S3 are executed. Moreover, the engine operating parameters can be changed, and the first ratio of the engine under the operating conditions can be obtained more comprehensively, so that it can be determined more accurately whether the air filter needs to be cleaned, and the target cleaning strategy can be determined more accurately.

[0098] Among them, changing the engine operating parameters can specifically include: changing the engine speed and / or the engine load rate, the engine speed can vary in the range from idle to maximum speed, the engine load rate can vary between 0 and 100%, for example, 50%, 80% and 100%, etc., which can be set according to actual conditions.

[0099] Determine multiple second preset moments, take any second preset moment as the second moment, repeat S6 to S8 to obtain the second ratio corresponding to the second preset moment, traverse each second preset moment, obtain the second ratio corresponding to each second preset moment, determine the proportion of second ratios greater than the preset ratio threshold in all second ratios, and judge whether the proportion exceeds the second proportion threshold. If so, the second judgment result is yes, if not, the second judgment result is no, wherein the second proportion threshold can be 80% or 90%, etc., which can be set according to actual conditions.

[0100] Among them, during the operation of the engine, multiple second preset moments arranged in a periodic manner are determined. For example, a second preset moment is determined every 5 minutes, and then S6 to S8 are executed. At each second preset moment, S6 to S8 are executed. Moreover, the engine operating parameters can be changed, so that the second ratio of the engine under the operating conditions can be obtained more comprehensively, and whether the cleaning result of the air filter meets the expected requirements can be determined more accurately.

[0101] Among them, changing the engine operating parameters can specifically include: changing the engine speed and / or the engine load rate, the engine speed can vary in the range from idle to maximum speed, the engine load rate can vary between 0 and 100%, for example, 50%, 80% and 100%, etc., which can be set according to actual conditions.

[0102] Based on S6 to S10, it can automatically determine whether the cleaning result of the air filter meets the expected requirements, with a high degree of automation.

[0103] In the above embodiments, although the steps are numbered S1, S2, etc., these are only specific embodiments given by the present invention. Those skilled in the art may adjust the execution order of S1, S2, etc. according to actual conditions, which is also within the protection scope of the present invention. It can be understood that in some embodiments, some or all of the above embodiments may be included.

[0104] like Figure 2 As shown, an automatic maintenance system 200 for an engine air filter according to an embodiment of the present invention comprises: a first intake flow rate conversion module 201, a first reference intake volume acquisition module 202, a first ratio calculation module 203, a cleaning strategy determination module 204 and a cleaning control module 205;

[0105] The first intake air flow conversion module 201 is used to: convert the intake air flow of the engine at the first moment into the first intake air flow under the standard working condition;

[0106] The first reference intake air volume acquisition module 202 is used to: look up a table based on the engine speed and load rate to acquire a first reference intake air volume under standard working conditions corresponding to the engine speed and load rate at a first moment;

[0107] The first ratio calculation module 203 is used to calculate a first ratio between the first intake air flow rate and the first reference intake air flow rate;

[0108] The cleaning strategy determination module 204 is used to: determine a target cleaning strategy for the air filter of the engine according to the first ratio;

[0109] The cleaning control module 205 is used to control the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy.

[0110] Optionally, in the above technical solution, a first gas pressure judgment module is also included;

[0111] The first gas pressure judgment module is used to: before cleaning the air filter of the engine, obtain and judge whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtain a first judgment result;

[0112] The cleaning control module 204 is specifically used for: when the first judgment result is no, controlling the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy.

[0113] Optionally, the above technical solution also includes a gas pressure regulating module, which is used to: when the first judgment result is yes, adjust the gas pressure in the engine until the gas pressure in the engine is no greater than the upper limit of the gas pressure in the cleaning requirement.

[0114] Optionally, in the above technical solution, it further includes: a second intake air flow conversion module, a second reference intake air volume acquisition module, a second ratio calculation module, a second gas pressure judgment module and a cleaning result judgment module;

[0115] The second intake air flow conversion module is used to: convert the intake air flow of the engine at the second moment into the second intake air flow under the standard working condition, after the air filter of the engine is cleaned according to the target cleaning strategy at the second moment;

[0116] The second reference intake air volume acquisition module is used to: obtain the second reference intake air volume under standard working conditions corresponding to the engine speed and load rate at the second moment according to the engine speed and load rate table;

[0117] The second ratio calculation module is used to calculate a second ratio between the second intake air flow rate and the second reference intake air volume;

[0118] The second gas pressure judgment module is used to: judge whether the second ratio is greater than a preset ratio threshold value, and obtain a second judgment result;

[0119] The cleaning result judgment module is used to: when the second judgment result is yes, determine that the cleaning result of the air filter meets the expected requirements.

[0120] It should be noted that the beneficial effects of the automatic maintenance system 200 for an engine air filter provided in the above embodiment are the same as the beneficial effects of the automatic maintenance method for an engine air filter provided in the above embodiment, which will not be described in detail here. In addition, when the system provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the system can be divided into different functional modules according to actual conditions to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be described in detail here.

[0121] Among them, the automatic maintenance system of the engine air filter of the present invention can be a computer program (including program code) running in a computer device. For example, the automatic maintenance system of the engine air filter of the present invention is an application software that can be used to execute the corresponding steps in the automatic maintenance method of the engine air filter of the present invention.

[0122] In some embodiments, the automatic maintenance system of the engine air filter of the present invention can be implemented by a combination of software and hardware. As an example, the automatic maintenance system of the engine air filter of the present invention can be a processor in the form of a hardware decoding processor, which is programmed to execute the automatic maintenance method of the engine air filter of the present invention. For example, the processor in the form of a hardware decoding processor can adopt one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs) or other electronic components.

[0123] The modules involved in the embodiments of the present invention may be implemented in software or hardware. The name of a module does not limit the module itself in some cases.

[0124] An electronic device according to an embodiment of the present invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, any of the above-mentioned methods for automatically maintaining an engine air filter is implemented. That is to say, an electronic device according to an embodiment of the present invention may include but is not limited to: a processor and a memory; the memory is used to store the computer program; the processor is used to execute the method for automatically maintaining an engine air filter shown in any embodiment of the present invention by calling the computer program.

[0125] In an alternative embodiment, an electronic device is provided, such as Figure 3 As shown, Figure 3 The electronic device 4000 shown includes: a processor 4001 and a memory 4003. The processor 4001 and the memory 4003 are connected, such as through a bus 4002. Optionally, the electronic device 4000 may also include a transceiver 4004, which may be used for data interaction between the electronic device and other electronic devices, such as data transmission and / or data reception. It should be noted that in actual applications, the transceiver 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of the present invention.

[0126] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present invention. Processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0127] The bus 4002 may include a path to transmit information between the above components. The bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 4002 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 3In the figure, only one thick line is used to represent bus 4002, but this does not mean that there is only one bus or one type of bus.

[0128] The memory 4003 can be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to this.

[0129] The memory 4003 is used to store the application code (computer program) for executing the solution of the present invention, and the execution is controlled by the processor 4001. The processor 4001 is used to execute the application code stored in the memory 4003 to implement the content shown in the above method embodiment.

[0130] Among them, the electronic device can also be a terminal device, and the terminal device can be any terminal device that can install applications, including at least one of a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, a smart TV, and a smart car device.

[0131] It should be noted that Figure 3 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0132] A computer-readable storage medium according to an embodiment of the present invention stores a computer program, and when the computer program is executed by a processor, any of the above-mentioned automatic maintenance methods for an engine air filter is implemented.

[0133] Optionally, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

[0134] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device performs any of the above-mentioned automatic maintenance methods for an engine air filter.

[0135] Computer program code for performing the operations of the present invention may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0136] It should be understood that the flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the module, the program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0137] The computer-readable storage medium provided by the embodiment of the present invention may be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, 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 thereof. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or component.

[0138] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device executes the method shown in the above embodiment.

[0139] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) by each other.

[0140] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects and represent the definition of a specific order or sequence. The order of use of similar objects can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than the order shown or described.

[0141] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present invention can be specifically implemented in the following forms, namely: it can be complete hardware, it can be complete software (including firmware, resident software, microcode, etc.), or it can be a combination of hardware and software, which is generally referred to as "circuit", "module" or "system" herein. In addition, in some embodiments, the present invention can also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium contains computer-readable program code.

[0142] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic maintenance method for an engine air filter, characterized in that: include: Converting the intake air flow rate of the engine at the first moment into the first intake air flow rate under the standard working condition; According to the engine speed and load rate table, a first reference intake air volume corresponding to the engine speed and load rate at the first moment under standard working conditions is obtained; calculating a first ratio between the first intake air flow rate and the first reference intake air amount; When the first ratio is less than a preset ratio threshold, determining a target cleaning strategy for the air filter of the engine according to the first ratio; The air filter cleaning system is controlled to clean the air filter of the engine according to the target cleaning strategy.

2. The automatic maintenance method of an engine air filter according to claim 1, characterized in that: Before cleaning the air filter of the engine, the method further includes: Obtaining and determining whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtaining a first determination result; Controlling the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy includes: When the first judgment result is no, the air filter cleaning system is controlled to clean the air filter of the engine according to the target cleaning strategy.

3. The automatic maintenance method of an engine air filter according to claim 2, characterized in that: Also includes: When the first judgment result is yes, the gas pressure in the engine is adjusted until the gas pressure in the engine is not greater than the upper limit of the gas pressure in the cleaning requirement.

4. The automatic maintenance method of an engine air filter according to any one of claims 1 to 3, characterized in that: Also includes: converting the intake air flow rate of the engine at a second moment into a second intake air flow rate under standard operating conditions, the second moment being after the air filter of the engine has been cleaned according to the target cleaning strategy; According to the engine speed and load rate table, a second reference intake air volume corresponding to the engine speed and load rate at the second moment under standard working conditions is obtained; calculating a second ratio between the second intake air flow rate and the second reference intake air amount; Determine whether the second ratio is greater than a preset ratio threshold, and obtain a second determination result; When the second judgment result is yes, it is determined that the cleaning result of the air filter meets the expected requirements.

5. An automatic maintenance system for an engine air filter, characterized in that: include: A first intake air flow conversion module, a first reference intake air volume acquisition module, a first ratio calculation module, a cleaning strategy determination module and a cleaning control module; The first intake air flow conversion module is used to: convert the intake air flow of the engine at a first moment into a first intake air flow under a standard working condition; The first reference intake volume acquisition module is used to: look up a table according to the speed and load rate of the engine to obtain a first reference intake volume under standard working conditions corresponding to the speed and load rate of the engine at the first moment; The first ratio calculation module is used to: calculate a first ratio between the first intake air flow rate and the first reference intake air volume; The cleaning strategy determination module is used to: determine a target cleaning strategy for the air filter of the engine according to the first ratio when the first ratio is less than a preset ratio threshold; The cleaning control module is used to control the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy.

6. The automatic maintenance system for an engine air filter according to claim 5, characterized in that: Also includes a first gas pressure determination module; The first gas pressure judgment module is used to: before cleaning the air filter of the engine, obtain and judge whether the gas pressure in the engine is greater than the upper limit of the gas pressure in the cleaning requirement, and obtain a first judgment result; The cleaning control module is specifically configured to: when the first judgment result is no, control the air filter cleaning system to clean the air filter of the engine according to the target cleaning strategy.

7. The automatic maintenance system for an engine air filter according to claim 6, characterized in that: It also includes a gas pressure regulating module, which is used to: when the first judgment result is yes, adjust the gas pressure in the engine until the gas pressure in the engine is no greater than the upper limit of the gas pressure in the cleaning requirement.

8. An automatic maintenance system for an engine air filter according to any one of claims 5 to 7, characterized in that: Also includes: A second intake air flow conversion module, a second reference intake air volume acquisition module, a second ratio calculation module, a second gas pressure judgment module and a cleaning result judgment module; The second intake flow conversion module is used to: convert the intake flow of the engine at a second moment into a second intake flow under a standard working condition, the second moment being after the air filter of the engine is cleaned according to the target cleaning strategy; The second reference intake air volume acquisition module is used to: look up a table according to the speed and load rate of the engine to obtain a second reference intake air volume under standard working conditions corresponding to the speed and load rate of the engine at the second moment; The second ratio calculation module is further used to: calculate a second ratio between the second intake air flow rate and the second reference intake air amount; The second gas pressure judgment module is used to: judge whether the second ratio is greater than a preset ratio threshold value, and obtain a second judgment result; The cleaning result judgment module is used to: when the second judgment result is yes, determine that the cleaning result of the air filter meets the expected requirements.

9. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, an automatic maintenance method for an engine air filter as claimed in any one of claims 1 to 4 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the automatic maintenance method for an engine air filter according to any one of claims 1 to 4 is implemented.

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