A fault detection method, device and electronic equipment of an engine supercharger

Abstract

The application discloses an engine supercharger fault detection method and device and electronic equipment. The method comprises the following steps: obtaining an operation parameter of an engine, wherein the operation parameter at least comprises a first exhaust temperature before supercharger turbocharging and a second exhaust temperature after supercharger turbocharging; obtaining a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, wherein the fault detection result represents whether the supercharger has a fault.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, and particularly relates to a fault detection method and device of an engine supercharger and an electronic device. BACKGROUND

[0002] At present, if a fault occurs in the process of turbocharging of an engine supercharger, maintenance personnel can only determine the fault by abnormal changes in engine power. SUMMARY

[0003] In view of the above problems, the present application provides a fault detection method and device of an engine supercharger and an electronic device to achieve the purpose of fault detection of the supercharger. The specific scheme is as follows:

[0004] The first aspect of the present application provides a fault detection method of an engine supercharger, and the method comprises the following steps.

[0005] Obtaining an operating parameter of an engine, wherein the operating parameter at least comprises a first exhaust temperature before turbocharging of a supercharger and a second exhaust temperature after turbocharging of the supercharger;

[0006] Obtaining a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, wherein the fault detection result represents whether the supercharger has a fault.

[0007] In a possible implementation, the step of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature comprises the following steps.

[0008] Obtaining a temperature difference value obtained by subtracting the first exhaust temperature from the second exhaust temperature;

[0009] Determining whether the temperature difference value is greater than or equal to a preset temperature threshold value;

[0010] If the temperature difference value is greater than or equal to the temperature threshold value, obtaining a fault detection result representing that the supercharger has a fault;

[0011] If the temperature difference value is less than the temperature threshold value, obtaining a fault detection result representing that the supercharger has no fault.

[0012] In a possible implementation, the temperature threshold value is different under different load states of the engine.

[0013] The load state comprises an engine speed and an engine power.

[0014] In a possible implementation, the operating parameter further comprises an engine speed and an engine torque.

[0015] Before the method of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the method further comprises:

[0016] determining whether the engine speed is greater than a first threshold and determining whether the engine torque is greater than a second threshold;

[0017] if the engine speed is greater than the first threshold and the engine torque is greater than the second threshold, the method of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature is executed;

[0018] if the engine speed is not greater than the first threshold or the engine torque is not greater than the second threshold, the method of obtaining the operating parameter of the engine is executed.

[0019] In a possible implementation, before the method of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the method further comprises:

[0020] determining whether the first exhaust temperature is greater than or equal to the second exhaust temperature;

[0021] if the first exhaust temperature is greater than or equal to the second exhaust temperature, a fault detection result indicating that the supercharger has no fault is obtained;

[0022] if the first exhaust temperature is less than the second exhaust temperature, the method of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature is executed.

[0023] In a possible implementation, in a case where the fault detection result indicates that the supercharger has a fault, the method further comprises:

[0024] controlling the engine to reduce the speed, and collecting a detection parameter of the engine in an idle state;

[0025] generating at least one fault code according to the detection parameter based on a fault detection rule, the fault code indicating a type of fault existing in the engine.

[0026] The second aspect of the present application provides an engine supercharger fault detection device, the device comprises:

[0027] a parameter obtaining unit configured to obtain an operating parameter of an engine, the operating parameter comprising at least a first exhaust temperature before turbocharging of a supercharger and a second exhaust temperature after turbocharging of the supercharger;

[0028] The fault detection unit is configured to obtain a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection result indicating whether the supercharger has a fault.

[0029] The third aspect of the present application provides a computer program product, comprising computer readable instructions, which, when executed on an electronic device, cause the electronic device to implement the engine supercharger fault detection method of the first aspect or any implementation manner of the first aspect.

[0030] The fourth aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0031] The memory is configured to store a computer program;

[0032] The processor is configured to execute the computer program, so that the electronic device can implement the engine supercharger fault detection method of the first aspect or any implementation manner of the first aspect.

[0033] The fifth aspect of the present application provides a computer storage medium, which carries one or more computer programs, when the one or more computer programs are executed by an electronic device, the electronic device can implement the engine supercharger fault detection method of the first aspect or any implementation manner of the first aspect.

[0034] The sixth aspect of the present application provides an engine structure, comprising:

[0035] An engine, wherein a supercharger is arranged in the engine;

[0036] A processor is configured to obtain an operating parameter of the engine, the operating parameter at least comprising a first exhaust temperature before the supercharger is turbocharged and a second exhaust temperature after the supercharger is turbocharged; and obtain a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection result indicating whether the supercharger has a fault.

[0037] According to the above technical solution, the engine supercharger fault detection method, device and electronic device provided by the present application obtain the first exhaust temperature before the supercharger is turbocharged and the second exhaust temperature after the supercharger is turbocharged, and obtain the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, so as to indicate whether the supercharger has a fault. It can be seen that, in the present application, the first exhaust temperature before the supercharger is turbocharged and the second exhaust temperature after the supercharger is turbocharged are used to detect whether the supercharger has a fault, without the need for maintenance personnel to pay attention to the engine power, so as to realize the fault detection of the supercharger. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0039] Figure 1 A flow chart of an engine supercharger fault detection method provided by an embodiment of the present application;

[0040] Figure 2 A partial flow chart of an engine supercharger fault detection method provided by an embodiment of the present application;

[0041] Figure 3 Another flow chart of an engine supercharger fault detection method provided by an embodiment of the present application;

[0042] Figure 4 Another flow chart of an engine supercharger fault detection method provided by an embodiment of the present application;

[0043] Figure 5 Another flow chart of an engine supercharger fault detection method provided by an embodiment of the present application;

[0044] Figure 6 A structural schematic diagram of an engine supercharger fault detection device provided by an embodiment of the present application;

[0045] Figure 7 A structural schematic diagram of an engine supercharger fault detection device provided by an embodiment of the present application;

[0046] Figure 8 A structural schematic diagram of an electronic device provided by an embodiment of the present application;

[0047] Figure 9 A structural schematic diagram of an engine structure provided by an embodiment of the present application;

[0048] Figure 10 A flow chart of a diesel engine supercharger fault detection method provided by an embodiment of the present application. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0050] The embodiments of the present application will be described below in conjunction with the drawings. It can be known by those skilled in the art that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as the technology develops and new scenarios appear.

[0051] The terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is only a way of distinguishing the objects with the same attributes in the description of the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the processes, methods, systems, products or devices containing a series of units do not have to be limited to those units, but can include other units not clearly listed or inherent to these processes, methods, products or devices.

[0052] The present application can be applied in the field of engines, and the following will introduce multiple application scenarios landed in products taking diesel engines as an example.

[0053] Reference Figure 1 An implementation flowchart of a fault detection method of an engine supercharger provided by the embodiments of the present application, which can be applied to an electronic device capable of data processing, connected to an engine, capable of obtaining the operating parameters of the engine, such as a mobile phone, computer or tablet device connected to a diesel engine. The technical solution in the embodiments is mainly used to realize fault detection of the engine supercharger.

[0054] Specifically, the method in the embodiments can include the following steps:

[0055] Step 101: Obtain the operating parameters of the engine.

[0056] Among them, the operating parameters at least include the first exhaust temperature before the supercharger turbocharging and the second exhaust temperature after the supercharger turbocharging.

[0057] Specifically, the first exhaust temperature and the second exhaust temperature of the supercharger can be collected by a temperature sensor, and then sent to the electronic device in the embodiments by the engine. The electronic device in the embodiments can obtain the first exhaust temperature and the second exhaust temperature of the supercharger.

[0058] Step 102: Obtain the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature.

[0059] Among them, the fault detection result represents whether the supercharger has a fault.

[0060] Specifically, in the embodiment, the first exhaust temperature and the second exhaust temperature are compared to obtain a fault detection result indicating whether the supercharger has a fault.

[0061] In the fault detection method of the engine supercharger provided in the embodiment, the first exhaust temperature before the supercharger turbine is supercharged and the second exhaust temperature after the supercharger turbine is supercharged are obtained, and the fault detection result of the supercharger is obtained according to the first exhaust temperature and the second exhaust temperature to indicate whether the supercharger has a fault. It can be seen that, in the embodiment, whether the supercharger has a fault is detected according to the first exhaust temperature before the supercharger turbine is supercharged and the second exhaust temperature after the supercharger turbine is supercharged, and the fault detection of the supercharger can be realized without the maintenance personnel paying attention to the engine power.

[0062] In an implementation manner, when the fault detection result of the supercharger is obtained, step 102 can be implemented in the following manner, as shown in step 102 in FIG. 2. Figure 2

[0063] Step 201: obtaining a temperature difference value obtained by subtracting the first exhaust temperature from the second exhaust temperature.

[0064] Step 202: judging whether the temperature difference value is greater than or equal to a preset temperature threshold value; if the temperature difference value is greater than or equal to the temperature threshold value, step 203 is executed; if the temperature difference value is less than the temperature threshold value, step 204 is executed.

[0065] Step 203: obtaining a fault detection result indicating that the supercharger has a fault.

[0066] Step 204: obtaining a fault detection result indicating that the supercharger has no fault.

[0067] The temperature threshold value can be determined according to the load state of the engine. The temperature threshold value is different in different load states of the engine. Specifically, the load state of the engine includes the engine speed and the engine power. For example, the temperature threshold value is different in different engine speeds, and the temperature threshold value is different in different engine powers.

[0068] ​For example, the temperature threshold value can be 100 degrees when the engine is at a speed of 2000 revolutions per minute; the temperature threshold value can be any temperature between 10℃ and 30℃ when the engine is at a speed of 1800 revolutions per minute. Based on this, in the case that the engine is at a partial load, i.e., at a speed of 1800 revolutions per minute and with a power of 380kw, if the temperature difference between the second exhaust temperature after turbocharging and the first exhaust temperature before turbocharging exceeds 30℃, it can be determined that the turbocharger is faulty; in the case that the engine is at a rated point, i.e., at a speed of 2000 revolutions per minute and with a power of 500kw, if the temperature difference between the second exhaust temperature after turbocharging and the first exhaust temperature before turbocharging exceeds 100℃, it can be determined that the turbocharger is faulty.

[0069] In an implementation manner, the operating parameter of the engine can further include an engine speed and an engine torque. Based on this, before step 102, the embodiment can further have the following processing, as shown in the following table: Figure 3

[0070] Step 103: determining whether the engine speed is greater than a first threshold value and whether the engine torque is greater than a second threshold value; if the engine speed is greater than the first threshold value and the engine torque is greater than the second threshold value, step 102 is executed again; if the engine speed is not greater than the first threshold value or the engine torque is not greater than the second threshold value, step 101 is executed again, i.e., the operating parameter of the engine is obtained again.

[0071] It can be seen that, in the embodiment, the timing of detecting turbocharger fault is determined based on the engine speed and the engine torque; if the engine speed is not greater than the first threshold value or the engine torque is not greater than the second threshold value, it can be determined that the turbocharger is not running, and at this time, step 102 does not need to be executed, i.e., the exhaust temperature does not need to be detected, at this time, the new operating parameter of the engine is obtained to monitor whether the timing of detecting turbocharger fault is reached in real time; if the engine speed is greater than the first threshold value and the engine torque is greater than the second threshold value, step 102 needs to be executed to determine whether the turbocharger is faulty.

[0072] The first threshold value and the second threshold value can be determined according to the actual operating state. For example, the first threshold value and the second threshold value are both 0.

[0073] In an implementation manner, before step 102, the embodiment can further have the following processing, as shown in the following table: Figure 4

[0074] Step 104: determining whether the first exhaust temperature is greater than or equal to the second exhaust temperature; if the first exhaust temperature is greater than or equal to the second exhaust temperature, step 105 is executed; if the first exhaust temperature is less than the second exhaust temperature, step 102 is executed.​​

[0075] Step 105: obtaining a fault detection result indicating that the supercharger has no fault.

[0076] That is, in the embodiment, before calculating the temperature difference between the second exhaust temperature and the first exhaust temperature, it is determined whether the first exhaust temperature is greater than or equal to the second exhaust temperature. If the first exhaust temperature is greater than or equal to the second exhaust temperature, it is determined that the supercharger is normal, and the fault detection result indicating that the supercharger has no fault is obtained, and the temperature difference is not calculated. If the first exhaust temperature is less than the second exhaust temperature, it is determined that the supercharger may have an abnormality, and step 102 is performed, specifically: first, a temperature difference obtained by subtracting the first exhaust temperature from the second exhaust temperature is obtained, and then it is determined whether the temperature difference is greater than or equal to a preset temperature threshold. If the temperature difference is greater than or equal to the temperature threshold, the fault detection result indicating that the supercharger has a fault is obtained. If the temperature difference is less than the temperature threshold, the fault detection result indicating that the supercharger has no fault is obtained.

[0077] In an implementation manner, in the case that the fault detection result indicates that the supercharger has a fault, the method in the embodiment can further include the following processing, as shown in Figure 5

[0078] Step 106: controlling the engine to reduce the speed.

[0079] Specifically, in the embodiment, a control instruction can be sent to the engine to reduce the speed of the engine until the engine enters an idle state.

[0080] Step 107: collecting detection parameters of the engine in the idle state.

[0081] The detection parameters of the engine in the idle state can include power, torque, exhaust temperature, water outlet temperature, supercharger speed, and the like.

[0082] The execution order of step 106 and step 107 can not be limited by the execution order in the drawings, and step 107 can be executed first, and then step 106 can be executed, or step 106 and step 107 can be executed simultaneously. Different technical solutions generated by different execution orders are within the protection scope of the present application.

[0083] Step 108: generating at least one fault code based on the fault detection rule and the detection parameters.

[0084] ​The fault code represents a type of fault existing in the engine, specifically a type of fault causing the turbocharger to malfunction, which can include a malfunctioning component or a related parameter.

[0085] Accordingly, in the embodiment, a fault code can be generated in time after detecting a malfunction of the turbocharger to provide the maintenance personnel, who can refer to the fault code to maintain the engine in time.

[0086] The above describes a fault detection method for an engine turbocharger provided by the embodiment. The following describes a device for executing the fault detection method for the engine turbocharger.

[0087] Referring to Figure 6 FIG. 1 is a structural schematic diagram of a fault detection device for an engine turbocharger provided by the embodiment. The device can be configured in an electronic device capable of data processing, which is connected to the engine and can obtain the operating parameters of the engine, such as a computer or a tablet device connected to a diesel engine. The technical solution in the embodiment is mainly used to implement fault detection of the engine turbocharger.

[0088] Specifically, the device in the embodiment can include the following units:

[0089] The parameter obtaining unit 601 is configured to obtain the operating parameters of the engine, which at least include a first exhaust temperature before turbocharging of the turbocharger and a second exhaust temperature after turbocharging of the turbocharger.

[0090] The fault detection unit 602 is configured to obtain a fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature, which represents whether the turbocharger has a fault.

[0091] According to the above technical solution, in the fault detection device for the engine turbocharger provided by the embodiment, the first exhaust temperature before turbocharging of the turbocharger and the second exhaust temperature after turbocharging of the turbocharger are obtained, and the fault detection result of the turbocharger is obtained according to the first exhaust temperature and the second exhaust temperature to represent whether the turbocharger has a fault. As can be seen, in the embodiment, the first exhaust temperature before turbocharging of the turbocharger and the second exhaust temperature after turbocharging of the turbocharger are used to detect whether the turbocharger has a fault, without the need for maintenance personnel to pay attention to the engine power, so that the fault detection of the turbocharger can be implemented.

[0092] In an implementation manner, the fault detection unit 602 is specifically configured to: obtain a temperature difference value obtained by subtracting the first exhaust temperature from the second exhaust temperature; determine whether the temperature difference value is greater than or equal to a preset temperature threshold; if the temperature difference value is greater than or equal to the temperature threshold, obtain a fault detection result indicating that the supercharger has a fault; and if the temperature difference value is less than the temperature threshold, obtain a fault detection result indicating that the supercharger has no fault.

[0093] In the embodiment, the temperature threshold is different in different load states of the engine, and the load states include an engine speed and an engine power.

[0094] In an implementation manner, the operating parameters further include an engine speed and an engine torque.

[0095] In the embodiment, before the fault detection unit 602 obtains the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection unit 602 is further configured to: determine whether the engine speed is greater than a first threshold and whether the engine torque is greater than a second threshold; if the engine speed is greater than the first threshold and the engine torque is greater than the second threshold, the fault detection unit 602 performs the operation of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature; and if the engine speed is not greater than the first threshold or the engine torque is not greater than the second threshold, the fault detection unit 602 performs the operation of obtaining the operating parameters of the engine.

[0096] In an implementation manner, before the fault detection unit 602 obtains the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection unit 602 is further configured to: determine whether the first exhaust temperature is greater than or equal to the second exhaust temperature; if the first exhaust temperature is greater than or equal to the second exhaust temperature, the fault detection unit 602 obtains a fault detection result indicating that the supercharger has no fault; and if the first exhaust temperature is less than the second exhaust temperature, the fault detection unit 602 performs the operation of obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature.

[0097] In an implementation manner, the device in the embodiment further includes the following units, as shown in Figure 7

[0098] The engine control unit 603 is configured to: control the engine to reduce the engine speed and collect detection parameters of the engine in an idle state, if the fault detection unit 602 detects that the fault detection result indicates that the supercharger has a fault; and generate at least one fault code according to the detection parameters based on a fault detection rule, the fault code indicating a type of fault existing in the engine. ​

[0099] It should be noted that the specific implementation of each unit in this embodiment can refer to the corresponding content in the foregoing, which will not be described in detail here.

[0100] Reference Figure 8 A structure schematic diagram of an electronic device provided by the embodiment of the present application, such as a mobile phone, a computer or a tablet device, etc., the electronic device is connected with an engine, and the electronic device can include the following structure:

[0101] At least one processor 801 and a memory 802 connected with the processor 801, wherein:

[0102] The memory 802 is configured to store a computer program;

[0103] The processor 801 is configured to execute the computer program, so that the electronic device can implement the fault detection method of the engine supercharger as described in any one of the foregoing.

[0104] According to the above technical solution, in the electronic device provided by the embodiment of the present application, the first exhaust temperature before the supercharger turbocharging and the second exhaust temperature after the supercharger turbocharging are obtained, and the fault detection result of the supercharger is obtained according to the first exhaust temperature and the second exhaust temperature, so as to represent whether the supercharger has a fault. It can be seen that, in the embodiment, whether the supercharger has a fault is detected according to the first exhaust temperature before the supercharger turbocharging and the second exhaust temperature after the supercharger turbocharging, without the need for maintenance personnel to pay attention to the engine power, so that the fault detection of the supercharger can be realized.

[0105] The embodiment of the present application also provides a computer storage medium, the storage medium carries one or more computer programs, when the one or more computer programs are executed by an electronic device, the electronic device can implement the fault detection method of the engine supercharger as described in any one of the foregoing.

[0106] Reference Figure 9 A structure schematic diagram of an engine structure provided by the embodiment of the present application, the engine structure can include the following structure:

[0107] An engine 901, the engine is arranged with a supercharger 911;

[0108] A processor 902, configured to obtain an operating parameter of the engine 901, the operating parameter at least includes: a first exhaust temperature before the supercharger 911 turbocharging and a second exhaust temperature after the supercharger 911 turbocharging; obtain a fault detection result of the supercharger 911 according to the first exhaust temperature and the second exhaust temperature, the fault detection result represents whether the supercharger 911 has a fault.

[0109] According to the technical solution, the first exhaust temperature before turbocharging of the supercharger in the engine and the second exhaust temperature after turbocharging of the supercharger are obtained, and the fault detection result of the supercharger is obtained according to the first exhaust temperature and the second exhaust temperature, so as to represent whether the supercharger has a fault. It can be seen that, in the embodiment, whether the supercharger has a fault is detected according to the first exhaust temperature before turbocharging of the supercharger and the second exhaust temperature after turbocharging of the supercharger, without the need for maintenance personnel to pay attention to the engine power, so that the fault detection of the supercharger can be realized.

[0110] Taking a diesel engine as an example, the technical solution of the present application is described as follows:

[0111] In multiple operations of the diesel engine, it can be found through fault data analysis that when the supercharger has a fire fault, the exhaust temperature after the turbine (i.e., the second exhaust temperature in the foregoing) is higher than the exhaust temperature before the turbine (i.e., the first exhaust temperature in the foregoing). According to different speed conditions (such as 1800 rpm under partial load or 2000 rpm under a rated point condition), if the exhaust temperature after the turbine is greater than the exhaust temperature before the turbine by more than 10℃-30℃ under all conditions (the exhaust temperature after the turbine is greater than the exhaust temperature before the turbine under different conditions, and the difference is a range, as long as it is greater, there is a problem), the engine will alarm, and the engine will reduce the speed and load to idle speed for inspection. Among them, the key is to check whether the supercharger is abnormal, such as checking whether the supercharger has an oil leakage phenomenon, manually rotating to see whether it rotates flexibly, etc. Based on the fault judgment threshold, a data analysis model is formed.

[0112] Based on the above analysis, the data analysis model provided by the present application sets that when the exhaust temperature after the turbine is greater than the exhaust temperature before the turbine by more than 10℃-30℃ under all conditions, the engine will alarm, and 10℃-30℃ is taken as the fault judgment threshold, so as to form the data analysis model.

[0113] Specifically, when the engine is normally operated, the exhaust temperature before the turbine is greater than the exhaust temperature after the turbine under partial load (such as a 1800 rpm condition), and the exhaust temperature before the turbine is greater than the exhaust temperature after the turbine at a rated point (such as a 2000 rpm and 500 kw condition), and the exhaust temperature difference (i.e., the temperature difference in the foregoing) is taken as a data point for logical judgment. When the exhaust temperature after the turbine minus the exhaust temperature before the turbine is greater than 10℃-30℃, the engine has abnormal combustion, and whether the supercharger is abnormal is fed back through monitoring of the abnormal exhaust temperature, and the engine is stopped for inspection.

[0114] Specifically, as shown in Figure 10 , a flowchart for supercharger fault detection of a diesel engine is as follows:

[0115] Step 1001: Collect the test bench monitoring parameters, such as engine speed, torque, intake temperature, turbine front and rear exhaust temperature, water outlet temperature, etc. These parameters are engine monitoring parameters collected by the collection box.

[0116] Step 1002: Determine whether the speed is greater than 0 and the torque is greater than 0. If yes, execute step 1003, otherwise, return to step 1001.

[0117] Step 1003: Obtain the difference C1 between the turbine front exhaust temperature A and the turbine rear exhaust temperature B.

[0118] Step 1004: Determine whether C1 is greater than 0. If yes, it can be determined that the engine is normal, otherwise, it can be determined that the engine is not normal, and step 1005 is executed.

[0119] Step 1005: Determine whether the difference C2 between the turbine rear exhaust temperature B and the turbine front exhaust temperature A is greater than or equal to the threshold value such as 30℃ under the corresponding working condition. If yes, step 1006 is executed, otherwise, step 1001 is returned.

[0120] Step 1006: Set an alarm and output a fault code to provide to maintenance personnel, manually analyze the data and confirm the cause, and propose a solution.

[0121] As can be seen, the present application determines whether the speed and load are stable working conditions by speed, torque and exhaust temperature. Moreover, in the stable working condition, the engine is alarmed when the turbine rear exhaust temperature is greater than the turbine front exhaust temperature by 10℃-30℃ under all working conditions, as a fault judgment threshold, the limit value is set and judged by logic, and the diagnosis result of the supercharger fire fault is obtained.

[0122] As can be seen, the present application uses automatic data grabbing and automatically analyzes the fault mode through the background fault diagnosis data analysis model, and can timely remind the next step of disposal, can timely and accurately locate the engine running fault, and is part of the engine fault diagnosis and health management.

[0123] In addition, it should be noted that the device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place, or distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment. In addition, the device embodiments provided by the present application in the drawings represent that they have a communication connection between them. Specifically, it can be implemented as one or more communication buses or signal lines.

[0124] Those skilled in the art can clearly understand that the application can be implemented by means of software plus necessary universal hardware, and of course can also be implemented by means of dedicated hardware including special integrated circuit, special CPU, special memory, special component, etc. Generally, any function completed by computer program can be easily implemented by corresponding hardware, and the specific hardware structure for implementing the same function can also be various, such as analog circuit, digital circuit or special circuit, etc. However, for the application, software program implementation is a better embodiment. Based on such understanding, the technical solution of the application or the part of the application which makes contribution to the prior art can be embodied in the form of software product, which is stored in readable storage medium, such as computer floppy disk, U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., and includes a plurality of instructions for making a computer device (which can be personal computer, training device or network device, etc.) execute the method described in various embodiments of the application.

[0125] In the above embodiments, the implementation can be achieved by software, hardware, firmware or any combination thereof, entirely or partially. When implemented by software, the implementation can be achieved in the form of a computer program product, entirely or partially.

[0126] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the flow or function described in the embodiments of the application is generated entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another, for example, the computer instructions can be transmitted from one website, computer, training device or data center to another website, computer, training device or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be stored by a computer or a data storage device such as a training device, a data center, etc. integrated with one or more available media sets. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.

Claims

1. A method of detecting a failure of a supercharger of an engine, characterized by, The method comprises: obtaining an operating parameter of an engine, the operating parameter comprising at least: a first exhaust temperature before turbocharging of a turbocharger and a second exhaust temperature after turbocharging of the turbocharger; the operating parameter further comprising: an engine speed and an engine torque; obtaining a fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature, the fault detection result representing whether the turbocharger has a fault; wherein, before obtaining the fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature, the method further comprises: determining whether the engine speed is greater than a first threshold and whether the engine torque is greater than a second threshold; if the engine speed is greater than the first threshold and the engine torque is greater than the second threshold, performing the operation of obtaining the fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature; if the engine speed is not greater than the first threshold or the engine torque is not greater than the second threshold, performing the operation of obtaining the operating parameter of the engine; wherein, before obtaining the fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature, the method further comprises: determining whether the first exhaust temperature is greater than or equal to the second exhaust temperature; if the first exhaust temperature is greater than or equal to the second exhaust temperature, obtaining a fault detection result representing that the turbocharger has no fault; if the first exhaust temperature is less than the second exhaust temperature, performing the operation of obtaining the fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature.

2. The method of claim 1, wherein, Obtaining a fault detection result of the turbocharger according to the first exhaust temperature and the second exhaust temperature comprises: obtaining a temperature difference value obtained by subtracting the first exhaust temperature from the second exhaust temperature; determining whether the temperature difference value is greater than or equal to a preset temperature threshold; if the temperature difference value is greater than or equal to the temperature threshold, obtaining a fault detection result representing that the turbocharger has a fault; if the temperature difference value is less than the temperature threshold, obtaining a fault detection result representing that the turbocharger has no fault.

3. The method of claim 2, wherein, The temperature threshold is different under different load states of the engine; wherein, the load state comprises: an engine speed and an engine power.

4. The method according to claim 1 or 2, characterized in that, In the case that the fault detection result represents that the turbocharger has a fault, the method further comprises: controlling the engine to reduce the speed, and collecting a detection parameter of the engine under an idle state; generating at least one fault code according to the detection parameter based on a fault detection rule, the fault code representing a fault type of the engine.

5. An engine supercharger failure detection device characterized by comprising: The device comprises: a parameter obtaining unit configured to obtain an operating parameter of an engine, the operating parameter comprising at least: a first exhaust temperature before turbocharging of a turbocharger and a second exhaust temperature after turbocharging of the turbocharger; the operating parameter further comprising: an engine speed and an engine torque; a fault detection unit configured to obtain a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection result indicating whether the supercharger has a fault; The fault detection unit is further configured to determine whether the engine speed is greater than a first threshold and whether the engine torque is greater than a second threshold before obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature; if the engine speed is greater than the first threshold and the engine torque is greater than the second threshold, the fault detection unit is configured to obtain the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature; if the engine speed is not greater than the first threshold or the engine torque is not greater than the second threshold, the fault detection unit is configured to obtain an operating parameter of the engine. The fault detection unit is further configured to determine whether the first exhaust temperature is greater than or equal to the second exhaust temperature before obtaining the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature; if the first exhaust temperature is greater than or equal to the second exhaust temperature, the fault detection unit is configured to obtain a fault detection result indicating that the supercharger has no fault; if the first exhaust temperature is less than the second exhaust temperature, the fault detection unit is configured to obtain the fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature.

6. An electronic device, comprising: The electronic device comprises at least one processor and a memory connected to the processor, wherein: The memory is configured to store a computer program; The processor is configured to execute the computer program to enable the electronic device to implement the fault detection method of the engine supercharger according to any one of claims 1 to 4.

7. A computer storage medium, characterized in that The storage medium carries one or more computer programs, and when the one or more computer programs are executed by an electronic device, the electronic device can implement the fault detection method of the engine supercharger according to any one of claims 1 to 4.

8. An engine structure characterized by comprising: The electronic device comprises: An engine, wherein the engine is provided with a supercharger; A processor is configured to obtain operating parameters of the engine, the operating parameters comprising at least a first exhaust temperature before turbocharging of the supercharger and a second exhaust temperature after turbocharging of the supercharger, and further comprising an engine speed and an engine torque; determine whether the engine speed is greater than a first threshold value and whether the engine torque is greater than a second threshold value; if the engine speed is not greater than the first threshold value or the engine torque is not greater than the second threshold value, execute the obtaining of the operating parameters of the engine; if the engine speed is greater than the first threshold value and the engine torque is greater than the second threshold value, determine whether the first exhaust temperature is greater than or equal to the second exhaust temperature; if the first exhaust temperature is greater than or equal to the second exhaust temperature, obtain a fault detection result indicating that the supercharger is free of faults; and if the first exhaust temperature is less than the second exhaust temperature, obtain a fault detection result of the supercharger according to the first exhaust temperature and the second exhaust temperature, the fault detection result indicating whether the supercharger is faulty.

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