An air intake flow control method and device, electronic equipment and storage medium

Abstract

The application discloses an air intake flow control method and device, electronic equipment and a storage medium. The method comprises the following steps: monitoring the air flow in real time through an air flow sensor and monitoring the pressure difference before and after the filter screen in real time through a pressure difference sensor; determining the pressure difference threshold corresponding to the current air flow based on a preset first corresponding relationship between the air flow and the pressure difference threshold; when the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold, determining the first flow compensation value corresponding to the current pressure difference based on a preset second corresponding relationship between the pressure difference and the flow compensation value, and compensating the current air flow based on the first flow compensation value. Thus, when there is foreign matter in the filter screen in the existing steady flow pipe, the pressure difference changes greatly, the measured air intake flow is less accurate, and the problems of black smoke and insufficient power of the vehicle are caused.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, in particular to an air intake flow control method and device, an electronic device and a storage medium. BACKGROUND

[0002] MAF (Mass Absolute Pressure) is an air flow sensor installed on a steady flow pipe, which is a section of the engine air intake pipeline and can stabilize airflow. When the pressure difference between the two ends of the MAF changes, the measured air intake flow of the MAF will be inaccurate. In particular, when there are foreign matters in the filter screen in the steady flow pipe, the pressure difference changes greatly, and the measured air intake flow is even less accurate, causing the vehicle to have problems such as black smoke and insufficient power. SUMMARY

[0003] The purpose of the present application is to provide an air intake flow control method and device, an electronic device and a storage medium. To solve the problem that when there are foreign matters in the filter screen in the existing steady flow pipe, the pressure difference changes greatly, the measured air intake flow is even less accurate, and the vehicle has problems such as black smoke and insufficient power.

[0004] In a first aspect, an air intake flow control device is provided, comprising:

[0005] a steady flow pipe and a filter screen arranged at an air intake port of the steady flow pipe;

[0006] an air flow sensor arranged on a pipe body of the steady flow pipe for measuring air intake flow;

[0007] a pressure difference sensor arranged on the filter screen for measuring the pressure difference before and after the filter screen, a bleed air pipe upstream of the filter screen being connected to a high-pressure end of the pressure difference sensor, and a bleed air pipe downstream of the filter screen being connected to a low-pressure end of the pressure difference sensor.

[0008] In a second aspect, an air intake flow control method is provided, which utilizes the control device of the first aspect. The method comprises:

[0009] real-time monitoring of air flow by the air flow sensor and real-time monitoring of the pressure difference before and after the filter screen by the pressure difference sensor;

[0010] determining the pressure difference threshold corresponding to the current air flow based on a preset first correspondence relationship between air flow and pressure difference threshold;

[0011] when the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold, determining the first flow compensation value corresponding to the current pressure difference based on a preset second correspondence relationship between pressure difference and flow compensation value, and compensating the current air flow based on the first flow compensation value.

[0012] In some possible embodiments, the method further includes: when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold, issuing a request to clean the filter screen.

[0013] In some possible embodiments, the issuing of the request to clean the filter screen includes:

[0014] If the filter screen needs to be cleaned, setting an indicator light associated with the filter screen state to a preset color.

[0015] In some possible embodiments, the second correspondence is established by:

[0016] determining a flow difference between an ideal air flow corresponding to different pressure differences and an actual air flow measured by the air flow sensor;

[0017] determining a flow compensation value corresponding to different pressure differences based on the flow difference, and establishing a second correspondence between the pressure difference and the flow compensation value.

[0018] In a third aspect, an air intake flow control device is provided, and the device includes:

[0019] a monitoring module configured to monitor air flow in real time through an air flow sensor and monitor pressure difference before and after the filter screen in real time through a pressure difference sensor;

[0020] a determination module configured to determine a pressure difference threshold corresponding to a current air flow based on a preset first correspondence between air flow and pressure difference threshold;

[0021] a compensation module configured to, when a current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold, determine a first flow compensation value corresponding to the current pressure difference based on a preset second correspondence between pressure difference and flow compensation value, and compensate the current air flow based on the first flow compensation value.

[0022] In some possible embodiments, the device further includes a cleaning module configured to, when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold, issue a request to clean the filter screen.

[0023] In some possible embodiments, the cleaning module is specifically configured to, if the filter screen needs to be cleaned, set an indicator light associated with the filter screen state to a preset color.

[0024] In a fourth aspect, an electronic device is provided, including at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores instructions executable 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 air intake flow control method in the second aspect.

[0025] In a fifth aspect, a computer storage medium is provided, which stores a computer program, and the computer program is used to enable a computer to perform the air intake flow control method in the second aspect.

[0026] According to the embodiments of the present application, when there is foreign matter in the filter screen in the existing steady flow pipe, the pressure difference changes greatly, the measured air intake flow is less accurate, and the problems of black smoke and insufficient power of the vehicle are caused. The embodiments of the present application can ensure normal operation of the engine.

[0027] Other features and advantages of the present application will be further described in the following description, and some will become apparent from the description, or will be learned through practice of the present application. The purpose and other advantages of the present application can be achieved and obtained through the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings introduced below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0029] Figure 1 A schematic diagram of an air intake flow control device according to an embodiment of the present application;

[0030] Figure 2 A flowchart of an air intake flow control method according to an embodiment of the present application;

[0031] Figure 3 A structural schematic diagram of an air intake flow control device according to an embodiment of the present application;

[0032] Figure 4 A structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; the "and / or" in the text only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two, and other quantifiers similar thereto should be understood as such. The preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application, and the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the description of the embodiments of the present application, unless otherwise specified, the term "multiple" means two or more than two, and other quantifiers similar thereto should be understood as such. The preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application, and the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] To further illustrate the technical solutions provided by the embodiments of the present application, the following will be described in detail in combination with the drawings and specific embodiments. Although the embodiments of the present application provide the method operation steps as described in the following embodiments or shown in the drawings, more or less operation steps can be included in the method based on conventional or non-creative labor. The execution order of the steps is not limited to the execution order provided by the embodiments of the present application in the logical sense. The method can be executed in sequence or in parallel when the method is executed in actual processing or by a control device.

[0036] In view of the related art, when the pressure difference between the two ends of the MAF sensor changes, the measured intake air flow of the MAF is inaccurate, especially when there is foreign matter in the filter screen in the steady flow pipe, the pressure difference changes greatly, and the measured intake air flow is more inaccurate, causing the vehicle to appear black smoke, power shortage and other problems. The present application provides an intake air flow control method and device, and an electronic device, which can ensure normal operation of the engine.

[0037] Other features and advantages of the present application will be described in the following specification, and some will become apparent from the specification, or will be understood by those skilled in the art. The purpose and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the written specification, claims, and drawings.

[0038] The terms involved in the present application are explained as follows:

[0039] MAF sensor: generally arranged behind the engine air filter. The MAF sensor is a hot film type intake air flow sensor. It generates a temperature gradient on the sensor chip according to the different heat carried by the gas flowing through the sensor at different flow rates, and converts the temperature gradient into a frequency signal through the internal circuit; the vehicle controller receives the frequency signal, and through the data calibrated frequency and flow characteristic curve, obtains the corresponding intake air flow value.

[0040] Steady flow pipe: a section of the engine intake pipe, used to install the MAF sensor, which can stabilize the airflow.

[0041] The intake flow control device and method in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0042] Referring to Figure 1 , a schematic diagram of an intake flow control device according to an embodiment of the present application is shown.

[0043] As Figure 1 indicated, the intake flow control device of the present application comprises:

[0044] A steady flow pipe 1 and a filter screen 2 arranged at the intake port of the steady flow pipe;

[0045] An air flow sensor 3 arranged on the pipe body of the steady flow pipe 1 for measuring the intake air flow;

[0046] A differential pressure sensor 4 arranged on the filter screen 2 for measuring the differential pressure before and after the filter screen, the bleed air pipe upstream of the filter screen 2 is connected to the high pressure end of the differential pressure sensor 4, and the bleed air pipe downstream of the filter screen 2 is connected to the low pressure end of the differential pressure sensor 4.

[0047] Specifically, in the present application, a differential pressure sensor 4 is additionally arranged before and after the filter screen 2 of the steady flow pipe 1, and the device further comprises a vehicle controller connected to the differential pressure sensor 4, which is used to control the differential pressure value monitored by the differential pressure sensor 4 and control the intake air flow through the control logic. The differential pressure sensor is used to detect the differential pressure value between the two ends of the filter screen 2 in real time, for example, the pressure of the bleed air pipe upstream of the filter screen 2 connected to the high pressure end of the differential pressure sensor 4 is P2, and the pressure of the bleed air pipe downstream of the filter screen 2 connected to the low pressure end of the differential pressure sensor 4 is P1, then the filter screen differential pressure PC of the steady flow pipe 1 is P2-P1.

[0048] In the present application, a differential pressure sensor is added before and after the filter screen, which can monitor the differential pressure between the two ends of the filter screen in real time, take necessary cleaning measures in real time, ensure that the intake air flow remains unobstructed, and the engine can work normally.

[0049] Figure 2 A flowchart of an intake flow control method according to an embodiment of the present application is shown, comprising:

[0050] Step 201: Real-time monitoring of air flow by the air flow sensor and real-time monitoring of the pressure difference before and after the filter screen by the differential pressure sensor.

[0051] Real-time acquisition of the air flow monitored by the air flow sensor flowing through the steady flow pipe, and real-time acquisition of the pressure difference before and after the filter screen measured by the differential pressure sensor.

[0052] Step 202: Based on the first corresponding relationship of the preset air flow and pressure difference threshold value, determine the pressure difference threshold value corresponding to the current air flow.

[0053] Specifically, the first corresponding relationship is the corresponding relationship between the pre-recorded pressure difference threshold value corresponding to each air flow of the steady flow pipe and the air flow. Based on the first corresponding relationship and the current air flow, the current pressure difference threshold value is determined.

[0054] Step 203: When the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold value, determine the first flow compensation value corresponding to the current pressure difference based on the second corresponding relationship of the preset pressure difference and flow compensation value, and compensate the current air flow based on the first flow compensation value.

[0055] By comparing the current pressure difference with the pressure difference threshold value, the state of the current filter screen is determined, specifically:

[0056] 1) When the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold value;

[0057] It is proved that the clogging degree of the current filter screen is within a normal range, and the filter screen does not need to be cleaned, only the current air flow needs to be compensated.

[0058] The second corresponding relationship is that the corresponding flow compensation values under different pressure differences are verified by bench test.

[0059] As an optional embodiment, the second corresponding relationship is established by the following method:

[0060] Determine the flow difference between the ideal air flow corresponding to different pressure differences and the actual air flow measured by the air flow sensor; based on the flow difference, determine the flow compensation value corresponding to different pressure differences, and establish the second corresponding relationship of the pressure difference and the flow compensation value.

[0061] Specifically, the flow compensation value is used to compensate the actual air flow to reach the ideal air flow, that is, if the filter screen is clogged but not yet to the point where it needs to be cleaned, the actual air flow is compensated and corrected by the flow compensation value.

[0062] The second corresponding relationship is a corresponding relationship between a pressure difference and a flow compensation value, and a flow difference between an actual flow and an ideal air flow corresponding to different pressure differences is determined in advance, and the flow difference is the flow compensation value, that is, the actual air flow is compensated according to the flow difference.

[0063] 2) when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold value;

[0064] It is proved that the filter screen is seriously blocked by foreign matters, and the filter screen must be cleaned.

[0065] As an optional implementation, when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold value, a request for cleaning the filter screen is sent out.

[0066] When the filter screen needs to be cleaned, a state signal corresponding to the request for cleaning the filter screen is transmitted to the vehicle controller. As an optional implementation, if the filter screen needs to be cleaned, an indicator lamp associated with the filter screen is set to a preset color.

[0067] Specifically, different lighting modes of the indicator lamp represent different conditions of the filter screen of the steady flow pipe, and when the indicator lamp associated with the filter screen is red, the filter screen needs to be cleaned due to blockage of foreign matters.

[0068] The application can accurately and timely control the intake flow, timely remind the driver, quickly locate the fault cause for maintenance, and timely correct the flow compensation value through the pre-set flow compensation value, so as to ensure that the air flow sensor accurately measures the intake amount and ensures the normal performance of the engine.

[0069] Embodiment 2

[0070] Based on the same inventive concept, the application also provides an intake flow control device, as shown in the accompanying drawings, which comprises: Figure 3

[0071] The monitoring module 301 is configured to monitor the air flow in real time through the air flow sensor and monitor the pressure difference before and after the filter screen in real time through the pressure difference sensor.

[0072] The determining module 302 is configured to determine the pressure difference threshold value corresponding to the current air flow based on the first corresponding relationship between the preset air flow and the pressure difference threshold value.

[0073] The compensation module 303 is configured to, when the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold value, determine the first flow compensation value corresponding to the current pressure difference based on the second corresponding relationship between the pressure difference and the flow compensation value, and compensate the current air flow based on the first flow compensation value.

[0074] ​Optionally, the apparatus further comprises a cleaning module 304 configured to send a request for cleaning the filter screen when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold.

[0075] Optionally, the cleaning module 304 is specifically configured to set an indicator light associated with the filter screen state to a preset color if the filter screen needs to be cleaned.

[0076] Optionally, the compensation module 303 is specifically configured to determine the flow difference between the ideal air flow corresponding to different pressure differences and the actual air flow measured by the air flow sensor by the following way:

[0077] determine the flow compensation value corresponding to different pressure differences based on the flow difference, and establish the second correspondence between the pressure difference and the flow compensation value.

[0078] After introducing the air intake flow control method and apparatus of the exemplary embodiments of the present application, next, an electronic device according to another exemplary embodiment of the present application is introduced.

[0079] Those skilled in the art can understand that various aspects of the present application can be implemented as a system, a method or a program product. Therefore, various aspects of the present application can be embodied as a complete hardware embodiment, a complete software embodiment (including firmware, microcode, etc.), or an embodiment combining hardware and software, which can be collectively referred to as "circuitry", "module" or "system" here.

[0080] In some possible embodiments, the electronic device according to the present application can at least include at least one processor and at least one memory. The memory stores program code which, when executed by the processor, causes the processor to perform the steps of the air intake flow control method according to various exemplary embodiments of the present application described above in the specification.

[0081] The electronic device 130 according to this embodiment of the present application will be described below with reference to Figure 4 The electronic device 130 according to this embodiment of the present application will be described below with reference to Figure 4 The electronic device 130 is only an example and should not impose any limitation on the functions and use range of the embodiments of the present application.

[0082] As shown in Figure 4 The electronic device 130 is in the form of a general electronic device. The components of the electronic device 130 can include but are not limited to the at least one processor 131, the at least one memory 132, and the bus 133 connecting different system components including the memory 132 and the processor 131.

[0083] Bus 133 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a local bus, and any buses designed to allow devices to communicate over a wireless medium, including an Institute of Electrical and Electronics Engineers (IEEE) 802.11 family of standards known under the trademarks Wi-Fi®, Bluetooth®, and Wireless Fidelity®, and / or a Wireless Access Venue (WAV) bus.

[0084] Memory 132 can include a readable storage medium in the form of volatile memory, such as random access memory (RAM) 1321 and / or cache memory 1322, and can further include read only memory (ROM) 1323.

[0085] Memory 132 can also include program / utility 1325 having a set of programs / modules 1324, including but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or a combination thereof, can include implementation of a network environment.

[0086] Electronic device 130 can also communicate with one or more external devices 134 such as a keyboard or a pointing device, and / or one or more devices that enable a user to interact with electronic device 130 and / or any devices (e.g., a router, a modem, a printer, etc.) that enable electronic device 130 to communicate with one or more other electronic devices. Such communication can occur via Input / Output (I / O) interface 135. Still yet, electronic device 130 can communicate with one or more networks, such as a local area network (LAN), a wide area network (WAN), and / or the Internet, through network adapter 136. As depicted, network adapter 136 communicates with the other components of electronic device 130 via bus 133. It should be appreciated that although not shown, other hardware and / or software modules could be used in conjunction with electronic device 130. Examples, include, but are not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0087] In some possible embodiments, each of the aspects of the method for controlling intake flow provided in the present application can also be implemented in the form of a program product, which includes program codes for causing a computer device to perform the steps of the method for controlling intake flow according to various exemplary embodiments of the present application described above in the specification when the program product is run on the computer device.

[0088] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0089] The monitoring program product of the embodiments of this application may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on an electronic device. However, the program product of this application is not limited thereto. In this document, the readable storage medium may be any tangible medium that contains or stores a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0090] A readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying readable program code. This propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0091] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0092] Program code for performing the operations of this application can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's electronic device, partially on the user's device, as a standalone software package, partially on the user's electronic device and partially on a remote electronic device, or entirely on a remote electronic device or server. In cases involving remote electronic devices, the remote electronic device can be connected to the user's electronic device via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external electronic device (e.g., via the Internet using an Internet service provider).

[0093] It should be noted that while several units or sub-units of the apparatus are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, according to an embodiment of the application, the features and functionalities of two or more units described above can be embodied in one unit. Conversely, the features and functionalities of one unit described above can be further divided into units embodied by several units.

[0094] Moreover, while operations of the methods of the present application are described in a particular order in the figures, this is not required or implied in any manner, nor is it required that all of the operations be performed to achieve desirable results. Additionally or alternatively, certain steps can be omitted, combined into a single step, and / or separated into multiple steps.

[0095] Those skilled in the art will appreciate that embodiments of the present application can be readily used as a method, a system, or a computer program product. A present application can be implemented in hardware- only embodiments, software-only embodiments, or embodiments combining software and hardware aspects. Furthermore, present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) embodying computer program instructions.

[0096] The present application is described with reference to the flowchart and block diagrams of the methods, apparatus (systems) and computer program products according to embodiments of the present application. It will be understood that each block of the flowchart and block diagrams, and combinations of blocks in the flowchart and block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing unit, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart and block diagrams block or blocks. Figure 1 The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two Figure 1 The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two

[0097] The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two Figure 1 The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two Figure 1 The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart and block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that, in some alternative implementations, the functions noted in the flowchart and block diagrams can occur out of the order noted in the figures. For example, two

[0098] These computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 These computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 These computer program instructions can also be loaded into a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks.

[0099] Although preferred embodiments of the application have been described herein, it will be apparent to those skilled in the art that various modifications and changes can be made to the embodiments without departing from the spirit and scope of the application. Accordingly, it is intended that all claims be interpreted to include all such modifications and changes as fall within the true spirit and scope of the application.

[0100] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described herein.

Claims

1. An intake flow control method, characterized in that, The control method utilizes a control device, which includes: a flow stabilizer tube and a filter screen disposed at the air inlet of the flow stabilizer tube; an air flow sensor disposed on the tube body of the flow stabilizer tube for measuring the intake airflow; and a differential pressure sensor disposed on the filter screen for measuring the pressure difference across the filter screen. An air intake pipe upstream of the filter screen is connected to the high-pressure end of the differential pressure sensor, and an air intake pipe downstream of the filter screen is connected to the low-pressure end of the differential pressure sensor. The control method includes: The airflow sensor monitors the airflow rate in real time, and the differential pressure sensor monitors the pressure difference across the filter in real time. Based on the preset first correspondence between air flow rate and differential pressure threshold, the differential pressure threshold corresponding to the current air flow rate is determined; When the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold, a first flow compensation value corresponding to the current pressure difference is determined based on a preset second correspondence between pressure difference and flow compensation value, and the current air flow is compensated based on the first flow compensation value. The second correspondence is established in the following manner: Determine the difference between the ideal airflow rate corresponding to different pressure differentials and the actual airflow rate measured by the airflow sensor; Based on the flow difference, determine the flow compensation value corresponding to different pressure differences, and establish a second correspondence between the pressure difference and the flow compensation value; the flow compensation value is used to make the actual air flow reach the ideal air flow by compensating the actual air flow.

2. The method according to claim 1, characterized in that, The method further includes: When the current pressure difference corresponding to the current airflow is greater than the pressure difference threshold, a request to clean the filter is issued.

3. The method according to claim 2, characterized in that, The request to clean the filter includes: If the filter needs cleaning, set the indicator light associated with the filter status to a preset color.

4. An intake flow control device, characterized in that, include: A flow stabilizer and a filter screen disposed at the air inlet port of the flow stabilizer; An air flow sensor for measuring the intake airflow is installed on the tube body of the flow stabilizing pipe; a differential pressure sensor for measuring the pressure difference across the filter screen is installed on the filter screen, with the upstream air intake pipe of the filter screen connected to the high-pressure end of the differential pressure sensor, and the downstream air intake pipe of the filter screen connected to the low-pressure end of the differential pressure sensor; the device further includes: The monitoring module is used to monitor the air flow rate in real time via the air flow sensor and to monitor the pressure difference across the filter screen in real time via the differential pressure sensor. The determination module is used to determine the pressure difference threshold corresponding to the current air flow rate based on a preset first correspondence between air flow rate and pressure difference threshold. The compensation module is used to determine a first flow compensation value corresponding to the current pressure difference based on a preset second correspondence between pressure difference and flow compensation value when the current pressure difference corresponding to the current air flow is less than or equal to the pressure difference threshold, and to compensate the current air flow based on the first flow compensation value. The compensation module is specifically used to: establish the second correspondence in the following ways to determine the flow difference between the ideal air flow corresponding to different pressure differences and the actual air flow measured by the air flow sensor; determine the flow compensation value corresponding to different pressure differences based on the flow difference, and establish the second correspondence between the pressure difference and the flow compensation value; the flow compensation value is used to make the actual air flow reach the ideal air flow by compensating the actual air flow.

5. The apparatus according to claim 4, characterized in that, The device also includes a cleaning module, which is used to issue a request to clean the filter when the current pressure difference corresponding to the current air flow is greater than the pressure difference threshold.

6. The apparatus according to claim 5, characterized in that, The cleaning module is specifically used to: if the filter needs cleaning, set the indicator light associated with the filter status to a preset color.

7. An electronic device, characterized in that, The method includes at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as described in any one of claims 1-3.

8. A computer storage medium, characterized in that, The computer storage medium stores a computer program that enables the computer to perform the method as described in any one of claims 1-3.

Images