Surge valve detection method and device, electronic equipment and storage medium

Abstract

The application provides a surge valve detection method and device, electronic equipment and storage medium, and relates to the technical field of engines. After the engine is started, the working state of the engine can be determined according to the continuously acquired intake amount of the engine, the working state of the surge valve can be determined according to the working state of the engine, the corresponding pressure threshold value can be determined according to the working state of the surge valve, and the pressure ratio between the inlet of the supercharger and the pressure before the throttle valve is compared with the pressure threshold value, so that whether the surge valve is invalid can be determined. The surge valve is detected, relevant personnel can be notified in time for maintenance when the surge valve is detected to be invalid, the supercharger surge can be avoided, the reliability of the supercharger is reduced, and the service life of the supercharger is affected.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to a surge valve detection method, device, electronic equipment, and storage medium. Background Technology

[0002] During rapid deceleration, the engine needs to quickly close the throttle valve to reduce the amount of air entering the engine, thereby reducing engine power output. However, if the throttle valve closes suddenly, the pressure in front of the throttle valve will increase rapidly. At this time, the gas needs to be released in time to reduce the pressure in front of the throttle valve; otherwise, it may cause the turbocharger to surge, reduce the reliability of the turbocharger, and accelerate the wear and tear of the turbocharger.

[0003] In existing technologies, surge valves are generally used to control exhaust gas and prevent turbocharger surge. However, there is a lack of a method to detect whether a surge valve has failed. Summary of the Invention

[0004] To address the problems in the prior art, this application provides a surge valve detection method, apparatus, electronic device, and storage medium that can detect whether a surge valve has failed.

[0005] In a first aspect, embodiments of this application provide a surge valve detection method, the method comprising:

[0006] After the engine starts, the intake air volume of the engine is continuously acquired, and the operating state of the engine is determined based on the intake air volume of the engine.

[0007] The operating state of the surge valve is determined based on the operating state of the engine, wherein the operating state of the surge valve indicates whether the surge valve is open or closed;

[0008] The corresponding pressure threshold is determined based on the working state of the surge valve, and the pressure ratio between the turbocharger inlet and the throttle valve is compared with the pressure threshold. Based on the comparison result, it is determined whether the surge valve has failed.

[0009] In one possible implementation, determining the engine's operating state based on the engine's intake air volume includes:

[0010] If the rate of change of the engine's intake air volume is greater than or equal to a first change threshold, then the engine's operating state is determined to be an acceleration state; or,

[0011] If the rate of change of the engine's intake air volume is less than or equal to the second change threshold, then the engine's operating state is determined to be a deceleration state; or,

[0012] If the rate of change of the engine's intake air volume is greater than the second change threshold and less than the first change threshold, then the engine's operating state is determined to be a stable state.

[0013] In one possible implementation, determining the operating state of the surge valve based on the engine's operating state includes:

[0014] If the engine is in the acceleration state, then the surge valve is determined to be in the closed state.

[0015] If the engine is in a stable state or a deceleration state, and the difference between the pressure after the throttle valve and the pressure before the throttle valve is greater than the difference threshold, then the surge valve is determined to be in an open state.

[0016] If the engine is in a stable state or a deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is less than or equal to the difference threshold, then the surge valve is determined to be in a closed state.

[0017] In one possible implementation, the pressure threshold corresponding to the surge valve being in the closed state is a first pressure threshold, and the pressure threshold corresponding to the surge valve being in the open state is a second pressure threshold; the step of determining the corresponding pressure threshold based on the operating state of the surge valve, comparing the pressure ratio between the turbocharger inlet and the pressure before the throttle valve with the pressure threshold, and determining whether the surge valve has failed based on the comparison result includes:

[0018] If the surge valve is in the closed state, then determine whether the pressure ratio between the turbocharger inlet and the throttle valve is greater than the first pressure threshold. If it is greater, then determine that the surge valve has failed.

[0019] If the surge valve is in the open state, it is determined whether the pressure ratio between the turbocharger inlet and the throttle valve is less than the second pressure threshold. If it is less, the surge valve is determined to be faulty.

[0020] In one possible implementation, after determining whether the surge valve has failed based on the comparison results, the method further includes:

[0021] If the surge valve is determined to be faulty, an alarm message is generated.

[0022] Secondly, embodiments of this application provide a surge valve detection device, the device comprising:

[0023] The status determination unit is used to continuously acquire the intake air volume of the engine after the engine is started, and determine the working status of the engine based on the intake air volume of the engine.

[0024] The operating state of the surge valve is determined based on the operating state of the engine, wherein the operating state of the surge valve indicates whether the surge valve is open or closed;

[0025] The detection unit is used to determine the corresponding pressure threshold according to the working state of the surge valve, and compare the pressure ratio between the turbocharger inlet and the throttle valve with the pressure threshold, and determine whether the surge valve has failed based on the comparison result.

[0026] In one possible implementation, the state determination unit is specifically used for:

[0027] If the rate of change of the engine's intake air volume is greater than or equal to a first change threshold, then the engine's operating state is determined to be an acceleration state; or,

[0028] If the rate of change of the engine's intake air volume is less than or equal to the second change threshold, then the engine's operating state is determined to be a deceleration state; or,

[0029] If the rate of change of the engine's intake air volume is greater than the second change threshold and less than the first change threshold, then the engine's operating state is determined to be a stable state.

[0030] In one possible implementation, the state determination unit is specifically used for:

[0031] If the engine is in the acceleration state, then the surge valve is determined to be in the closed state.

[0032] If the engine is in a stable state or a deceleration state, and the difference between the pressure after the throttle valve and the pressure before the throttle valve is greater than the difference threshold, then the surge valve is determined to be in an open state.

[0033] If the engine is in a stable state or a deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is less than or equal to the difference threshold, then the surge valve is determined to be in a closed state.

[0034] In one possible implementation, the detection unit is specifically used for:

[0035] If the surge valve is in the closed state, then determine whether the pressure ratio between the turbocharger inlet and the throttle valve is greater than the first pressure threshold. If it is greater, then determine that the surge valve has failed.

[0036] If the surge valve is in the open state, it is determined whether the pressure ratio between the turbocharger inlet and the throttle valve is less than the second pressure threshold. If it is less, the surge valve is determined to be faulty.

[0037] In one possible implementation, the detection unit is further configured to:

[0038] If the surge valve is determined to be faulty, an alarm message is generated.

[0039] Thirdly, embodiments of this application provide an electronic device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and when the computer program is executed by the processor, it implements the method described in any one of the surge valve detection methods in the first aspect.

[0040] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method described in any one of the surge valve detection methods in the first aspect.

[0041] The technical solution provided in this application has at least the following beneficial effects:

[0042] This application provides a surge valve detection method, apparatus, electronic device, and storage medium. After engine startup, the engine's operating state can be determined based on continuously acquired engine intake air volume. Based on the engine's operating state, the operating state of the surge valve can be determined, and a corresponding pressure threshold can be determined. The pressure ratio between the turbocharger inlet and the pressure before the throttle valve is compared with the pressure threshold to determine whether the surge valve has failed. Detecting the surge valve allows for timely notification of relevant personnel for repair when a surge valve failure is detected, preventing turbocharger surge, reducing turbocharger reliability, and affecting turbocharger lifespan. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A flowchart of a surge valve detection method provided in this application embodiment;

[0045] Figure 2 A schematic diagram of the pressure at various positions of an engine provided for an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the structure of a surge valve detection device provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] It should be noted that the terms "comprising" and "having" and their variations used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0050] During rapid deceleration, the engine typically needs to quickly close the throttle valve to reduce the intake air volume, thereby reducing engine power output and achieving the effect of rapid deceleration. However, if the throttle valve closes suddenly, the pressure in front of the throttle valve will increase rapidly. At this time, the gas needs to be released in time to reduce the pressure in front of the throttle valve; otherwise, it may cause the turbocharger to surge, reduce the reliability of the turbocharger, and may even affect the service life of the turbocharger.

[0051] Currently, surge valves are generally used to control exhaust gas and prevent turbocharger surge. However, there is a lack of a method to detect whether a surge valve has failed.

[0052] Based on this, the surge valve detection method, apparatus, electronic device, and storage medium provided in this application embodiment can determine the engine's operating state based on the continuously acquired engine intake air volume after engine startup, and determine the surge valve's operating state based on the engine's operating state. A corresponding pressure threshold is determined based on the surge valve's operating state, and the pressure ratio between the turbocharger inlet and the throttle valve is compared with the pressure threshold to determine whether the surge valve has failed. Detecting the surge valve allows for timely notification of relevant personnel for repair when a surge valve failure is detected, preventing turbocharger surge, reducing turbocharger reliability, and affecting turbocharger lifespan.

[0053] Figure 1A flowchart illustrating a surge valve detection method provided in an embodiment of this application is shown. This method can be performed by an ECU (Electronic Control Unit, vehicle controller). Figure 1 As shown, the surge valve detection method may include the following steps:

[0054] Step S101: After the engine is started, the intake air volume of the engine is continuously acquired, and the working state of the engine is determined based on the intake air volume of the engine.

[0055] In one alternative implementation, after detecting that the engine has started, the ECU can continuously acquire the engine's intake air volume and determine the engine's operating status based on the engine's intake air volume.

[0056] Specifically, the ECU can determine the engine's operating state based on the rate of change of the engine's intake air volume. For example, after detecting engine start, the ECU can obtain the engine's intake air volume at the current moment and the engine's intake air volume at the next moment. For instance, assuming the current moment is 18:55:00, the next moment could be 18:55:05. After obtaining the engine's intake air volume at both moments, the ECU can determine the rate of change of the engine's intake air volume and determine the engine's operating state based on the change in the engine's intake air volume.

[0057] In some embodiments, if the rate of change of the engine's intake air volume is greater than or equal to a first change threshold, the engine's operating state can be determined to be an acceleration state.

[0058] For example, the first change threshold can be 15%. Assuming the rate of change of the engine's intake air volume is 20%, it can be determined that the rate of change of the engine's intake air volume is greater than the first change threshold, and further, the engine's operating state can be determined to be an acceleration state.

[0059] In other embodiments, if the rate of change of the engine's intake air volume is less than or equal to a second change threshold, the engine's operating state can be determined to be a deceleration state.

[0060] For example, the second change threshold can be -15%. Assuming the rate of change of the engine's intake air volume is -30%, it can be determined that the rate of change of the engine's intake air volume at the current moment is less than the second change threshold. Furthermore, it can be determined that the engine's operating state is a deceleration state.

[0061] In other embodiments, if the rate of change of the engine's intake air volume is greater than a second change threshold and less than a first change threshold, the engine's operating state can be determined to be a stable state.

[0062] For example, let's continue with the illustration using a first change threshold of 15% and a second change threshold of -15%. Assuming the rate of change of the engine's intake air volume is 5%, we can determine that the rate of change of the engine's intake air volume is between the first and second change thresholds. Furthermore, we can determine that the engine's operating state is a steady state.

[0063] However, it should be noted that the range of values ​​for the first and second change thresholds can be set according to actual needs. For example, the first change threshold can be 20% or 30%, and the second change threshold can be -20% or -30%. This application does not impose any limitations on this.

[0064] Step S102: Determine the operating status of the surge valve based on the engine's operating status.

[0065] The operating status of the surge valve indicates whether the surge valve is open or closed.

[0066] In one alternative implementation, after the ECU obtains the engine's operating status, it can determine the operating status of the surge valve based on the engine's operating status.

[0067] In some embodiments, if the engine is in an acceleration state, the ECU can determine that the surge valve is in a closed state and can control the surge valve to close, thus preventing exhaust.

[0068] In other embodiments, if the engine is in a stable or decelerating state, the operating state of the surge valve can be determined based on the relationship between the difference between the pressure after the throttle and the pressure before the throttle and a preset difference threshold.

[0069] Figure 2 A schematic diagram of the pressure at various positions of the engine is shown as an example, wherein the pressure before the throttle is P1, the pressure after the throttle is P2, and P3 is the turbocharger inlet pressure.

[0070] Specifically, when the engine is in a stable or decelerating state, if the difference between the pressure P2 after the throttle and the pressure P1 before the throttle is greater than a threshold difference, the ECU can determine that the surge valve is in the open state and control it to open for exhaust. If the difference between the pressure P2 after the throttle and the pressure P1 before the throttle is less than or equal to the threshold difference, the ECU can determine that the surge valve is in the closed state and control it to close for exhaust. For example, the threshold difference can be 3 kPa or 5 kPa; this application does not limit the value of the threshold difference.

[0071] Step S103: Determine the corresponding pressure threshold based on the working state of the surge valve, and compare the pressure ratio between the turbocharger inlet and the throttle valve with the pressure threshold. Based on the comparison result, determine whether the surge valve has failed.

[0072] The pressure threshold corresponding to the surge valve being in the closed state is the first pressure threshold, and the pressure threshold corresponding to the surge valve being in the open state is the second pressure threshold.

[0073] In one optional implementation, when the ECU determines that the surge valve is in the closed state, it can obtain the pressure P3 at the turbocharger inlet and the pressure P1 before the throttle valve, and compare the pressure ratio P3 / P1 between the turbocharger inlet and the throttle valve with a first pressure threshold. If the pressure ratio P3 / P1 between the turbocharger inlet and the throttle valve is greater than the first pressure threshold, it can be determined that the surge valve has failed. At this time, the spring inside the surge valve fails, and the surge valve is stuck in the open position and cannot close normally.

[0074] It should be noted that the range of the first pressure threshold can be set according to actual needs. For example, it can be 10 kPa or 20 kPa. This application does not impose any restrictions on it.

[0075] In another optional implementation, when the ECU determines that the surge valve is in the open state, it can obtain the pressure P3 at the turbocharger inlet and the pressure P1 before the throttle valve, and compare the pressure ratio P3 / P1 between the turbocharger inlet and the throttle valve with a second pressure threshold. If the pressure ratio P3 / P1 between the turbocharger inlet and the throttle valve is less than the second pressure threshold, it can be determined that the surge valve has failed. At this time, the spring inside the surge valve fails, and the surge valve is stuck in the closed position and cannot be opened normally.

[0076] It should also be noted that the range of the second pressure threshold can be set according to actual needs. For example, it can be 5 kPa or 8 kPa. This application does not impose any restrictions on it.

[0077] After the ECU determines that the surge valve has failed based on the comparison results, it can generate an alarm message to notify relevant personnel that the surge valve has failed and needs to be repaired. For example, in some embodiments, the text alarm message can be rendered on the vehicle's display device; in other embodiments, the voice alarm message can be played through the vehicle's speakers, thereby notifying relevant personnel that the surge valve has malfunctioned.

[0078] Based on the same inventive concept, this invention also provides a structural schematic diagram of a surge valve detection device, as shown below. Figure 3 As shown, the surge valve detection device includes:

[0079] The state determination unit 301 is used to continuously acquire the intake air volume of the engine after the engine is started, and determine the working state of the engine based on the intake air volume.

[0080] Used to determine the operating state of the surge valve based on the engine's operating state, wherein the operating state of the surge valve indicates whether the surge valve is open or closed;

[0081] The detection unit 302 determines the corresponding pressure threshold based on the working state of the surge valve, compares the pressure ratio between the turbocharger inlet and the throttle valve with the pressure threshold, and determines whether the surge valve has failed based on the comparison result.

[0082] In one possible implementation, the state determination unit 301 is specifically used for:

[0083] If the rate of change of the engine's intake air volume is greater than or equal to the first threshold value, then the engine's operating state is determined to be acceleration; or,

[0084] If the rate of change of the engine's intake air volume is less than or equal to the second change threshold, then the engine's operating state is determined to be a deceleration state; or,

[0085] If the rate of change of the engine's intake air volume is greater than the second change threshold and less than the first change threshold, then the engine's operating state is determined to be a stable state.

[0086] In one possible implementation, the state determination unit 301 is specifically used for:

[0087] If the engine is in acceleration mode, then the surge valve is determined to be in closed mode.

[0088] If the engine is in a stable or decelerating state, and the difference between the pressure after the throttle and the pressure before the throttle is greater than the difference threshold, then the surge valve is determined to be in the open state.

[0089] If the engine is in a stable or decelerating state, and the difference between the pressure after the throttle and the pressure before the throttle is less than or equal to the difference threshold, then the surge valve is determined to be in a closed state.

[0090] In one possible implementation, the detection unit 302 is specifically used for:

[0091] If the surge valve is in the closed state, determine whether the pressure ratio between the turbocharger inlet and the throttle valve is greater than the first pressure threshold. If it is greater, the surge valve is determined to be faulty.

[0092] If the surge valve is in the open state, determine whether the pressure ratio between the turbocharger inlet and the throttle valve is less than the second pressure threshold. If it is less, the surge valve is determined to be faulty.

[0093] In one possible implementation, the detection unit 302 is further configured to:

[0094] If the surge valve is determined to be faulty, an alarm message is generated.

[0095] Based on the same inventive concept, this application also provides an electronic device, which may be the ECU mentioned above. This electronic device includes at least a memory for storing data and a processor. The processor for data processing can be implemented using a microprocessor, CPU, GPU (Graphics Processing Unit), DSP, or FPGA. The memory stores operation instructions, which can be computer-executable code, to implement the various steps in the surge valve detection method described in this application.

[0096] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 4 As shown, the electronic device 400 includes a memory 401, a processor 402, a data acquisition module 403, and a bus 404. The memory 401, processor 402, and data acquisition module 403 are all connected via the bus 404, which is used for data transmission between the memory 401, processor 402, and data acquisition module 403.

[0097] The memory 401 can be used to store software programs and modules. The processor 402 executes various functional applications and data processing of the electronic device 400 by running the software programs and modules stored in the memory 401, such as the surge valve detection method provided in this application embodiment. The memory 401 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs of at least one application, etc.; the data storage area may store data created according to the use of the electronic device 400, etc. In addition, the memory 401 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0098] The processor 402 is the control center of the electronic device 400. It connects various parts of the electronic device 400 via a bus 404 and various interfaces and lines. It executes various functions and processes data of the electronic device 400 by running or executing software programs and / or modules stored in the memory 401, and by calling data stored in the memory 401. Optionally, the processor 402 may include one or more processing units, such as a CPU, GPU (Graphics Processing Unit), or digital processing unit.

[0099] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, can be used to implement the surge valve detection method described in any embodiment of this application.

[0100] In some possible implementations, various aspects of the surge valve detection method provided in this application can also be implemented in the form of a program product, which includes program code. When the program product is run on a computer device, the program code causes the computer device to perform the steps of the surge valve detection method according to the various exemplary embodiments of this application described above. For example, the computer device can perform actions such as... Figure 4 The flowchart of the surge valve detection method is shown.

[0101] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0102] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or 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 processor, 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, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0103] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0105] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for detecting surge valves, characterized in that, The method includes: After the engine starts, the intake air volume of the engine is continuously acquired, and the operating state of the engine is determined based on the intake air volume of the engine; wherein the operating state of the engine includes acceleration state, deceleration state or stable state. If the engine is in the acceleration state, the surge valve is determined to be in the closed state; if the engine is in the stable state or the deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is greater than the difference threshold, the surge valve is determined to be in the open state; if the engine is in the stable state or the deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is less than or equal to the difference threshold, the surge valve is determined to be in the closed state. If the surge valve is in the closed state, determine whether the pressure ratio between the turbocharger inlet and the throttle valve is greater than the first pressure threshold. If it is greater, determine that the surge valve has failed. If the surge valve is in the open state, then determine whether the pressure ratio between the turbocharger inlet and the throttle valve is less than the second pressure threshold. If it is less, then determine that the surge valve has failed.

2. The method according to claim 1, characterized in that, Determining the engine's operating state based on the engine's intake air volume includes: If the rate of change of the engine's intake air volume is greater than or equal to a first change threshold, then the engine's operating state is determined to be an acceleration state; or, If the rate of change of the engine's intake air volume is less than or equal to the second change threshold, then the engine's operating state is determined to be a deceleration state; or, If the rate of change of the engine's intake air volume is greater than the second change threshold and less than the first change threshold, then the engine's operating state is determined to be a stable state.

3. The method according to claim 1 or 2, characterized in that, The method further includes: If the surge valve is determined to be faulty, an alarm message is generated.

4. A surge valve detection device, characterized in that, The device includes: The state determination unit is used to continuously acquire the intake air volume of the engine after the engine is started, and determine the operating state of the engine based on the intake air volume of the engine; wherein the operating state of the engine includes acceleration state, deceleration state or stable state. If the engine is in the acceleration state, the surge valve is determined to be in the closed state; if the engine is in the stable state or the deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is greater than the difference threshold, the surge valve is determined to be in the open state; if the engine is in the stable state or the deceleration state, and the difference between the pressure after the throttle and the pressure before the throttle is less than or equal to the difference threshold, the surge valve is determined to be in the closed state. The detection unit is used to determine whether the pressure ratio between the turbocharger inlet and the throttle valve is greater than a first pressure threshold if the working state of the surge valve is closed; if it is greater, the surge valve is determined to be faulty. If the surge valve is in the open state, then determine whether the pressure ratio between the turbocharger inlet and the throttle valve is less than the second pressure threshold. If it is less, then determine that the surge valve has failed.

5. The apparatus according to claim 4, characterized in that, The state determination unit is specifically used for: If the rate of change of the intake air volume of the engine is greater than or equal to the first change threshold, then the engine is determined to be in an acceleration state. or, If the rate of change of the intake air volume of the engine is less than or equal to the second change threshold, then the operating state of the engine is determined to be a deceleration state. or, If the rate of change of the engine's intake air volume is greater than the second change threshold and less than the first change threshold, then the engine's operating state is determined to be a stable state.

6. An electronic device, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that can run on the processor, and when the computer program is executed by the processor, it implements the method of any one of claims 1 to 3.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it implements the method according to any one of claims 1 to 3.

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