A health management method and device, electronic equipment and vehicle

Abstract

The application provides a health management method, device, electronic equipment and vehicle, and the method comprises the following steps: if the total mileage of the vehicle in this time exceeds a first preset value, the first regeneration mileage of the DPF system is acquired; when it is determined that the first regeneration mileage is lower than the second regeneration mileage, and the difference between the first regeneration mileage and the second regeneration mileage is less than a second preset value, it is determined that the engine and the aftertreatment system are in an abnormal state; based on the regeneration condition of the DPF system, the abnormal component in the engine and the aftertreatment system is determined, and the corresponding early warning information is output. The application compares the first regeneration mileage with the second regeneration mileage to determine whether the engine and the aftertreatment system are in a normal state, if not, the specific abnormal position is further determined, and the corresponding early warning information is output; so as to avoid the abnormal condition of the components in the engine and the aftertreatment system after regeneration treatment, and thus the health state management of the engine and the aftertreatment system is realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle data processing technology, and in particular to a health management method, device, electronic device, and vehicle. Background Technology

[0002] Currently, when performing DPF regeneration treatment on engines, frequent and excessive regeneration can cause thermal aging of the DPF system, while insufficient regeneration can lead to the accumulation of carbon particles in the exhaust gas, affecting engine life.

[0003] Existing technology can only display the regeneration mileage of the diesel particulate filter (DPF) system after regeneration, but it does not detect the health status of the engine and aftertreatment system during the regeneration process. Therefore, it cannot manage the health status of the DPF system, such as thermal aging and engine life. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a health management method, device, electronic device, and vehicle to achieve the purpose of managing the health status of the engine and aftertreatment system.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A first aspect of this invention discloses a health management method, the method comprising:

[0007] If the total mileage of the vehicle in this trip exceeds the first preset value, the first regeneration mileage of the DPF system is obtained;

[0008] When it is determined that the first regeneration mileage is lower than the second regeneration mileage, and the difference between the first regeneration mileage and the second regeneration mileage is less than the second preset value, the health status of the engine and the after-treatment system is determined to be abnormal. The second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions and driving data.

[0009] Based on the regeneration status of the DPF system, abnormal components in the engine and aftertreatment system are identified, and corresponding warning information is output.

[0010] Optionally, the second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions, and driving data, including:

[0011] The corresponding cumulative amount of carbon soot particles is obtained based on the vehicle's current operating environment and operating conditions.

[0012] The cumulative amount of carbon soot particles is corrected based on driving data to obtain the corrected cumulative amount of carbon soot particles.

[0013] The corresponding second regeneration mileage is determined based on the corrected cumulative amount of soot particles.

[0014] Optionally, based on the regeneration status of the DPF system, abnormal components in the engine and aftertreatment system are identified, and corresponding early warning information is output, including:

[0015] If it is determined that the DPF system has completed regeneration in this cycle, the state of the engine intake system is determined.

[0016] The first warning information is output based on the status of the air intake system. The first warning information is a type of warning information.

[0017] Optionally, determine the status of the engine intake system, including:

[0018] If it is determined that the engine is operating in a stable operating condition range, the key characteristic parameters of the intake system of the vehicle under the current operating environment are obtained.

[0019] If the difference for each key feature parameter exceeds the third value, the state of the engine intake system is determined to be normal.

[0020] If the difference between any key feature parameter does not exceed the third value, the state of the engine intake system is determined to be abnormal.

[0021] Optional, also includes:

[0022] If it is determined that the DPF system cannot complete regeneration, determine whether there are human factors that cause the DPF system to fail to regenerate completely.

[0023] If not, output a second warning message, which indicates the presence of a component that may affect health.

[0024] Optionally, determine whether human factors caused the DPF system to fail to regenerate completely, including:

[0025] Acquire the vehicle's operating status during the regeneration process;

[0026] Determine whether the vehicle is in a stopped state.

[0027] If so, it is confirmed that human factors have caused the DPF system to fail to regenerate completely;

[0028] If not, it is determined that there is no human factor causing the DPF system to fail to regenerate completely.

[0029] Optionally, determining that the DPF system has completed regeneration in this cycle includes:

[0030] After the current regeneration process is completed, obtain the pressure difference between the inlet and outlet of the DPF system;

[0031] Determine whether the pressure difference is less than a preset pressure value;

[0032] If so, it indicates that the DPF system has not been fully regenerated;

[0033] If not, confirm that the DPF system has been fully regenerated.

[0034] A second aspect of the present invention discloses a health management device, the device comprising:

[0035] The acquisition unit is used to acquire the first regeneration mileage of the DPF system if the total mileage of the vehicle in the current run exceeds a first preset value.

[0036] The determining unit is used to determine that the engine and after-treatment system are in an abnormal state when the first regeneration mileage is lower than the second regeneration mileage and the difference between the first regeneration mileage and the second regeneration mileage is less than a second preset value. The second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions and driving data.

[0037] The processing unit is used to determine the abnormal components in the engine and aftertreatment system based on the regeneration status of the DPF system, and output the corresponding warning information.

[0038] A third aspect of the present invention discloses an electronic device, including: a processor and a memory, the processor and the memory being connected via a communication bus; wherein, the processor is used to call and execute a program stored in the memory; the memory is used to store the program, the program being used to implement the health management method as shown in the first aspect of the present invention.

[0039] A fourth aspect of the present invention discloses a vehicle including an electronic device as shown in a third aspect of the present invention, the electronic device being used to perform the health management method shown in a first aspect of the present invention.

[0040] Based on the above embodiments of the present invention, a health management method, device, electronic device, and vehicle are provided. The method includes: if the total mileage of the vehicle in a current operation exceeds a first preset value, obtaining a first regeneration mileage of the DPF system; if the first regeneration mileage is determined to be lower than a second regeneration mileage, and the difference between the first regeneration mileage and the second regeneration mileage is less than a second preset value, determining that the engine and aftertreatment system are in an abnormal state, wherein the second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions, and driving data; and determining the presence of abnormal components in the engine and aftertreatment system based on the regeneration status of the DPF system, and outputting corresponding warning information. The present invention determines whether the engine and aftertreatment system are in a normal state by comparing the first regeneration mileage of the diesel particulate filter (DPF) system with the theoretical second regeneration mileage obtained by processing the vehicle's current operating environment, operating conditions, and driving data. If they are no longer in a normal state, the specific abnormal parts are further determined, and corresponding warning information is output; this is to prevent abnormal conditions from occurring in the components of the engine and aftertreatment system after regeneration, leading to further vehicle deterioration, thereby achieving health status management of the engine and aftertreatment system. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0042] Figure 1 This is a schematic flowchart illustrating a health management method according to an embodiment of the present invention;

[0043] Figure 2 This is a diagram illustrating a health management strategy according to an embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the structure of a health management device according to an embodiment of the present invention. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] It should be noted that the descriptions involving "first," "second," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0048] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] As can be seen from the background technology, the existing technology can only display the regeneration mileage of the diesel particulate filter (DPF) system after regeneration treatment, and cannot further apply the regeneration mileage, thus making it impossible to determine in advance whether there are any abnormal conditions in the engine and after-treatment system.

[0050] This invention compares the actual regeneration mileage of the diesel particulate filter (DPF) system (i.e., the first regeneration mileage) with the theoretical regeneration mileage (i.e., the second regeneration mileage) obtained by processing the vehicle's current operating environment, operating conditions, and driving data to determine whether the engine and aftertreatment system are in normal condition. If they are not in normal condition, the specific abnormal parts are further identified, and corresponding warning information is output. This is to prevent abnormal conditions of components in the engine and aftertreatment system after regeneration, which could lead to further vehicle deterioration, thereby achieving health status management of the engine and aftertreatment system.

[0051] It should be noted that the health status management of the engine and aftertreatment system shown in this invention refers to the further application of the regeneration mileage to predict abnormalities in the health status of the engine and aftertreatment system in advance.

[0052] See Figure 1 This is a flowchart illustrating a health management method according to an embodiment of the present invention, namely, health management of the engine and aftertreatment system. The method includes:

[0053] Step S101: Determine whether the total mileage of the vehicle in this trip exceeds the first preset value. If yes, proceed to step S102. If no, continue to record the total mileage of the vehicle in this trip.

[0054] In the specific implementation of step S101, when the vehicle is started, the vehicle's mileage is recorded by the vehicle's mileage sensor, i.e., the total mileage, to determine whether the vehicle can be regenerated. If the total mileage of the vehicle exceeds the first preset value, the vehicle is determined to enter the regeneration program and step S102 is executed. If the total mileage of the vehicle does not exceed the second preset value, it means that the vehicle has not yet entered the regeneration program. Then, the total mileage of the vehicle is recorded and step S101 is executed.

[0055] It should be noted that the first preset value was determined based on multiple experiments to be the total mileage of the vehicle when the regeneration program was triggered.

[0056] Optionally, the regeneration process of the DPF system needs to be triggered inside the vehicle to perform the process of step S101.

[0057] Step S102: Obtain the first regeneration mileage of the DPF system;

[0058] It should be noted that the first regeneration mileage is the actual regeneration mileage generated when the vehicle undergoes DPF system regeneration processing.

[0059] In the specific implementation step S102, the regeneration mileage generated after regeneration processing using the DPF system is obtained, i.e., the actual regeneration mileage.

[0060] Step S103: Determine whether the first regeneration mileage is lower than the second regeneration mileage. If yes, proceed to step S104. If no, determine that the engine and after-treatment system are in normal condition, that is, the engine and after-treatment system did not experience any abnormalities after the regeneration process.

[0061] It should be noted that the second regeneration mileage, i.e. the theoretical regeneration mileage, is obtained by processing the vehicle's current operating environment, operating conditions, and driving data, and includes the following steps:

[0062] Step S11: Obtain the corresponding cumulative amount of carbon soot particles based on the vehicle's current operating environment and operating conditions;

[0063] In the specific implementation of step S11, based on the current operating environment and operating conditions of the vehicle, the corresponding carbon soot particle accumulation amount is determined by traversing the correspondence between different carbon soot particle accumulation amounts and the vehicle's operating environment and operating conditions.

[0064] For each vehicle model, the cumulative amount of carbon soot particles at each operating point under different ambient temperatures and altitudes is determined through whole-vehicle testing. The theoretical cumulative amount of carbon soot particles is calculated in real time during vehicle operation and recorded cumulatively. Based on this, the correspondence between different cumulative amounts of carbon soot particles and the vehicle's operating environment and operating conditions is calibrated.

[0065] Step S12: Correct the cumulative amount of carbon soot particles based on the driving data to obtain the corrected cumulative amount of carbon soot particles.

[0066] In the specific implementation of step S12, since different driver operations, such as the throttle opening, will affect the amount of carbon soot particles accumulated, it is necessary to determine the correction coefficient corresponding to the current driving data, and use the product of the correction coefficient and the amount of carbon soot particles as the corrected amount of carbon soot particles accumulated.

[0067] It should be noted that different driving data correspond to different correction coefficients, and different driving data may affect the generation of carbon soot particles. Therefore, experiments should be conducted based on different driving data to determine different correction coefficients.

[0068] Step S13: Determine the corresponding second regeneration mileage based on the corrected cumulative amount of soot particles.

[0069] In the specific implementation of step S13, the regeneration mileage that can be generated when the DPF system actively combusts the accumulated carbon soot particles after all the accumulated carbon soot particles are burned is called the second regeneration mileage, or the theoretical regeneration mileage.

[0070] Step S104: Determine whether the difference between the first regeneration mileage and the second regeneration mileage exceeds the second preset value. If yes, proceed to step S105. If no, determine that the health status of the engine and the after-treatment system is normal, that is, the engine and the after-treatment system did not experience any abnormalities after the regeneration process.

[0071] In the specific implementation of steps S103 and S104, the actual regeneration mileage of the vehicle is compared with the theoretical regeneration mileage. If the actual regeneration mileage, i.e., the first regeneration mileage, is lower than the theoretical regeneration mileage, i.e., the second regeneration mileage, then the difference between the first regeneration mileage and the second regeneration mileage is calculated, and it is determined whether the search exceeds a second preset value. If so, step S105 is executed. If not, it is determined that the health status of the engine and after-treatment system is normal, that is, the engine and after-treatment system did not experience any abnormalities after the regeneration process.

[0072] It should be noted that the second preset value is set in advance by technicians based on actual conditions, and can be a percentage preset value. This embodiment of the invention does not limit this.

[0073] Step S105: Determine that the health status of the engine and aftertreatment system is abnormal.

[0074] Step S106: Based on the regeneration status of the DPF system, determine the abnormal components in the engine and aftertreatment system, and output the corresponding warning information.

[0075] It should be noted that the specific implementation of step S106 includes the following steps:

[0076] Step S21: Determine whether the DPF system has been fully regenerated. If yes, proceed to step S22; otherwise, proceed to step S24.

[0077] It should be noted that the specific implementation process of step S21 includes the following steps:

[0078] Step S31: After the current regeneration process is completed, obtain the pressure difference between the inlet and outlet of the DPF system;

[0079] Step S32: Determine whether the pressure difference is less than the preset pressure value. If yes, determine that the DPF system has not been fully regenerated and proceed to step S24. If no, determine that the DPF system has been fully regenerated and proceed to step S22.

[0080] In the specific implementation of step S21, after the DPF system completes active combustion, the pressure at the DPF system inlet and outlet is measured using a DPF differential pressure sensor. The pressure difference corresponding to the pressure at the inlet and outlet is calculated. If the pressure difference is less than the preset pressure value, there are still residual soot particles in the DPF system, indicating that the DPF system has not been completely regenerated, and step S24 is executed. If the pressure difference is greater than or equal to the preset pressure value, it indicates that the DPF system has been completely regenerated, and step S22 is executed.

[0081] It should be noted that the pressure preset value was set in advance based on multiple experiments, and this embodiment of the invention does not limit this.

[0082] Step S22: Determine the status of the engine intake system;

[0083] It should be noted that the specific implementation of step S22 includes the following steps.

[0084] Step S41: Determine whether the engine is operating in a stable operating condition range. If yes, proceed to step S42. If no, return to step S41 and continue until it is determined that the engine is operating in a stable operating condition range.

[0085] In the specific implementation of step S41, the engine speed and torque are obtained, and it is determined whether the engine speed and torque change within the preset range after regeneration. If so, the engine is operating in a certain stable operating condition range. At this time, the intake system is judged again, and step S42 is executed. If not, it is determined whether the engine has entered the stable operating condition range.

[0086] It should be noted that the preset range was set in advance by technicians based on multiple experiments.

[0087] Step S42: Obtain the key characteristic parameters of the intake system under the current operating environment of the vehicle;

[0088] In the specific implementation of step S42, under the current operating environment of the vehicle, key characteristic parameters such as the intake volume of the intake system, EGR opening degree, and turbocharger opening degree are obtained.

[0089] Step S43: For each key feature parameter, determine whether the difference between the key feature parameter and the same preset parameter exceeds a third value. If the difference for each key feature parameter exceeds the third value, proceed to step S44. If the difference for any key feature parameter does not exceed the third value, proceed to step S45.

[0090] It should be noted that the theoretical values ​​of key parameters of the intake system under different stable operating conditions are determined in advance through vehicle tests at different ambient temperatures and altitudes, i.e., preset parameters.

[0091] In the specific implementation of step S43, for each key characteristic parameter, the theoretical value of the same key parameter in the intake system under the same operating condition is retrieved, i.e., the preset parameter. Then, the difference between the key characteristic parameter and the preset parameter is calculated. If the difference corresponding to each key characteristic parameter exceeds the third value, step S44 is executed. If the difference corresponding to any key characteristic parameter does not exceed the third value, step S45 is executed.

[0092] Step S44: Determine that the state of the engine intake system is normal;

[0093] Step S45: Determine that the state of the engine intake system is abnormal;

[0094] Step S23: Output a first warning message based on the status of the intake system. The first warning message is a type of warning message.

[0095] In the specific implementation of step S23, if it is determined that the state of the engine intake system is normal, and based on historical experience it is determined that the fuel system may be abnormal, then the component that affects health is the fuel system, and a warning message is output to check the fuel system; if it is determined that the state of the engine intake system is abnormal, it indicates that the intake system is abnormal, then the component that affects health is the intake system, and a warning message is output to check the intake system.

[0096] It should be noted that historical experience refers to the abnormal components that may occur in the engine or after-treatment system of a vehicle after it has undergone regeneration, as well as the rules involved in each component. For example, if the regeneration mileage is not at the normal level and the engine intake system is also normal, the abnormal component is most likely to be the fuel system.

[0097] Step S24: Determine whether there is a human factor that prevents the DPF system from fully regenerating. If yes, return to step S102. If no, proceed to step S25.

[0098] It should be noted that the specific implementation of step S24 includes the following steps.

[0099] Step S51: Obtain the vehicle's operating status during the regeneration process;

[0100] Step S52: Determine whether the vehicle is in a stopped state. If yes, determine that the DPF system cannot be fully regenerated due to human factors, and return to step S102. If no, determine that the DPF system cannot be fully regenerated due to human factors, and proceed to step S25.

[0101] In the specific implementation of steps S51 to S52, the vehicle's operating status is obtained during the active combustion process of the DPF system, i.e., during the vehicle's regeneration process. The active combustion process will be forced to stop if the driver turns off the engine or stops the vehicle. Therefore, if the vehicle's operating status is determined to be stopped, it indicates that there is a human factor causing the DPF system to fail to regenerate completely. This judgment ends, and the system is reset and the next judgment begins, i.e., step S102 is executed. If the vehicle's operating status is determined to be normal, it indicates that there is no human factor causing the DPF system to fail to regenerate completely, and step 25 is executed.

[0102] It should be noted that, in addition to the methods described in steps S51 to S55 above, it also includes:

[0103] The system acquires the real-time operating status of the vehicle during the regeneration process. If the vehicle remains under low load for a preset time period, it is determined that human factors are causing the DPF system to fail to regenerate completely. If the vehicle does not remain under low load for a preset time period, it is determined that human factors are not causing the DPF system to fail to regenerate completely.

[0104] It should be noted that low-load operating conditions can be caused by the driver continuously operating the vehicle under low load conditions, in which case the active combustion effect deteriorates.

[0105] Step S25: Output the second warning information, which is a type of warning information.

[0106] In the specific implementation of step S25, the affected component in the engine and after-treatment system is determined to be the after-treatment system. In other words, the after-treatment system is abnormal at this time, and a second warning message for checking the after-treatment system is output.

[0107] Optionally, the method described in steps S101 to S106 of the present invention can also be further described by... Figure 2 The strategy diagram shown is used for illustration.

[0108] In this embodiment of the invention, the engine and aftertreatment system are judged to be in normal condition by comparing the first regeneration mileage of the diesel particulate filter (DPF) system with the theoretical second regeneration mileage obtained by processing the vehicle's current operating environment, operating conditions, and driving data. If the engine and aftertreatment system are no longer in normal condition, the specific abnormal parts are further determined and corresponding warning information is output. This is to prevent the components in the engine and aftertreatment system from becoming abnormal after regeneration, which could lead to further deterioration of the vehicle, thereby achieving health status management of the engine and aftertreatment system.

[0109] Based on the health management method described in the above embodiments of the present invention, correspondingly, the embodiments of the present invention illustrate a health management device, such as... Figure 3 As shown, the device includes:

[0110] The acquisition unit 301 is used to acquire the first regeneration mileage of the DPF system if the total mileage of the vehicle in the current run exceeds the first preset value.

[0111] The determining unit 302 is used to determine that the engine and after-treatment system are in an abnormal state when the first regeneration mileage is lower than the second regeneration mileage and the difference between the first regeneration mileage and the second regeneration mileage is less than a second preset value. The second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions and driving data.

[0112] The processing unit 303 is used to determine the abnormal components in the engine and aftertreatment system based on the regeneration status of the DPF system, and output the corresponding warning information.

[0113] It should be noted that the specific implementation process of each unit of the health management device shown in the above embodiments of the present invention is the same as the specific implementation process of the health management method shown in the above embodiments, and they can be referred to each other.

[0114] In this embodiment of the invention, the engine and aftertreatment system are judged to be in normal condition by comparing the first regeneration mileage of the diesel particulate filter (DPF) system with the theoretical second regeneration mileage obtained by processing the vehicle's current operating environment, operating conditions, and driving data. If the engine and aftertreatment system are no longer in normal condition, the specific abnormal parts are further determined and corresponding warning information is output. This is to prevent the components in the engine and aftertreatment system from becoming abnormal after regeneration, which could lead to further deterioration of the vehicle, thereby achieving health status management of the engine and aftertreatment system.

[0115] Optionally, based on the health management device shown in the above embodiments of the present invention, the second regeneration mileage determination unit 302, which processes the vehicle's current operating environment, operating conditions, and driving data, is specifically used for:

[0116] The corresponding cumulative amount of carbon soot particles is obtained based on the vehicle's current operating environment and operating conditions.

[0117] Based on the driving data, the cumulative amount of carbon soot particles is corrected to obtain the corrected cumulative amount of carbon soot particles.

[0118] The corresponding second regeneration mileage is determined based on the corrected cumulative amount of soot particles.

[0119] Optionally, based on the health management device shown in the above embodiments of the present invention, the processing unit 303 is specifically used for:

[0120] If it is determined that the DPF system has completed regeneration in this cycle, the state of the engine intake system is determined.

[0121] The status output of the air intake system provides a warning message, which indicates the presence of a device that may affect health.

[0122] Determining the state of the engine intake system includes:

[0123] If it is determined that the engine is operating in a stable operating condition range, the key characteristic parameters of the intake system of the vehicle under the current operating environment are obtained.

[0124] If the difference for each key feature parameter exceeds the third value, the state of the engine intake system is determined to be normal.

[0125] If the difference between any key feature parameter does not exceed the third value, the state of the engine intake system is determined to be abnormal.

[0126] Optionally, based on the health management device shown in the above embodiments of the present invention, the processing unit 303 is further configured to:

[0127] If it is determined that the DPF system cannot complete regeneration, determine whether there are human factors that cause the DPF system to fail to regenerate completely.

[0128] If not, output a warning message indicating the presence of a component that may affect health.

[0129] Determining whether human factors caused the DPF system to fail to regenerate completely includes:

[0130] Acquire the vehicle's operating status during the regeneration process;

[0131] Determine whether the vehicle is in a stopped state.

[0132] If so, it is confirmed that human factors have caused the DPF system to fail to regenerate completely;

[0133] If not, it is determined that there is no human factor causing the DPF system to fail to regenerate completely.

[0134] Optionally, based on the health management device shown in the above embodiments of the present invention, the processing unit 303 that determines when the DPF system completes regeneration in this cycle is further configured to:

[0135] After the current regeneration process is completed, obtain the pressure difference between the inlet and outlet of the DPF system;

[0136] Determine whether the pressure difference is less than a preset pressure value;

[0137] If so, it indicates that the DPF system has not been fully regenerated;

[0138] If not, confirm that the DPF system has been fully regenerated.

[0139] This application provides an electronic device, which includes a processor and a memory. The memory is used to store program code and data for health management, and the processor is used to call program instructions in the memory to execute the steps shown in the health management method in the above embodiments.

[0140] This invention provides a vehicle that includes the electronic device described in the above-described embodiments of this application. The electronic device is used to execute the health management method disclosed in the embodiments of this application.

[0141] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0142] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0143] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A health management method, characterized in that, The method includes: If the total mileage of the vehicle in this run exceeds the first preset value, the first regeneration mileage of the DPF system is obtained, wherein the first regeneration mileage is the actual regeneration mileage generated when the vehicle performs regeneration processing by the DPF system. When it is determined that the first regeneration mileage is lower than the second regeneration mileage, and the difference between the first regeneration mileage and the second regeneration mileage is less than the second preset value, the health status of the engine and the after-treatment system is determined to be abnormal. The second regeneration mileage is a theoretical regeneration mileage obtained by processing the vehicle's current operating environment, operating conditions and driving data. If it is determined that the DPF system has completed regeneration in this cycle, the state of the engine intake system is determined. The status of the air intake system is used to output a first warning message, which is a type of warning message, indicating the presence of a component that may affect health.

2. The method according to claim 1, characterized in that, The second regeneration mileage is obtained by processing the vehicle's current operating environment, operating conditions, and driving data, including: The corresponding cumulative amount of carbon soot particles is obtained based on the vehicle's current operating environment and operating conditions. The cumulative amount of carbon soot particles is corrected based on driving data to obtain the corrected cumulative amount of carbon soot particles. The corresponding second regeneration mileage is determined based on the corrected cumulative amount of soot particles.

3. The method according to claim 1, characterized in that, Determine the status of the engine intake system, including: If it is determined that the engine is operating in a stable operating condition range, the key characteristic parameters of the intake system of the vehicle under the current operating environment are obtained. If the difference between each key feature parameter and the preset parameter exceeds the third value, the state of the engine intake system is determined to be normal. If the difference between any key characteristic parameter and the preset parameter does not exceed the third value, the state of the engine intake system is determined to be abnormal.

4. The method according to claim 1, characterized in that, Also includes: If it is determined that the DPF system cannot be fully regenerated, determine whether there are human factors that cause the DPF system to be unable to be fully regenerated. If not, output a second warning message, which is a type of warning message, indicating the presence of a component that may affect health.

5. The method according to claim 4, characterized in that, Determine whether human factors are causing the DPF system to fail to regenerate completely, including: Acquire the vehicle's operating status during the regeneration process; Determine whether the vehicle is in a stopped state. If so, it is confirmed that human factors have caused the DPF system to fail to regenerate completely; If not, it is determined that there is no human factor causing the DPF system to fail to regenerate completely.

6. A health management device, characterized in that, The device includes: The acquisition unit is used to acquire the first regeneration mileage of the DPF system when the total mileage of the vehicle in the current operation exceeds a first preset value, wherein the first regeneration mileage is the actual regeneration mileage generated when the vehicle performs DPF system regeneration processing. The determining unit is used to determine that the engine and after-treatment system are in an abnormal state when the first regeneration mileage is lower than the second regeneration mileage and the difference between the first regeneration mileage and the second regeneration mileage is less than a second preset value. The second regeneration mileage is a theoretical regeneration mileage obtained by processing the vehicle's current operating environment, operating conditions and driving data. The processing unit is configured to determine the state of the engine intake system if it is determined that the DPF system has completed regeneration in this cycle; and output a first warning message based on the state of the intake system, wherein the first warning message is a warning message indicating the presence of a component that may affect health.

7. An electronic device, characterized in that, include: A processor and a memory are connected via a communication bus; wherein the processor is used to call and execute a program stored in the memory; The memory is used to store a program for implementing the health management method as described in any one of claims 1-5.

8. A vehicle, characterized in that, The electronic device of claim 7 is used to perform the health management method of any one of claims 1-5.

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