An engine carbon load control method, system, device, and storage medium

Abstract

The application discloses an engine carbon load control method, system, device and storage medium, and the method comprises the following steps: a particulate trap collects and monitors real-time carbon load in engine exhaust particulate matters; if a first difference between the real-time carbon load and a carbon load triggering regeneration is less than a set lower threshold, whether a first set condition is met according to the real-time carbon load and a differential pressure carbon load, and whether a second set condition is met according to real-time differential pressure; if both conditions are met, a model carbon load maximum value is limited until the real-time differential pressure meets a third set condition, and the limitation on the model carbon load maximum value is removed. The interrelation between the carbon load model and the differential pressure carbon load is calculated under certain conditions, regeneration is triggered more accurately, and meanwhile, the engine is prevented from triggering regeneration too fast due to large deviation of the model carbon load.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engines, in particular to an engine carbon loading control method, system, device and storage medium. BACKGROUND

[0002] Under the non-road four-stage emission standards of the sixth stage, the aftertreatment devices commonly used by diesel engines include DOC (diesel oxidation catalyst), DPF (particulate filter) and SCR (selective catalytic reduction system). These systems work together to reduce pollutant emissions in exhaust gas, and use model carbon loading and differential pressure carbon loading to estimate the actual carbon loading in the DPF. The function of the DPF is to capture particulate matter (such as soot) in the exhaust gas, and when the particulate matter in the DPF accumulates to a certain extent, it needs to be removed through a regeneration process. The regeneration process usually involves heating the DPF to burn off the captured particulate matter. Model carbon loading and differential pressure carbon loading are two methods of estimating the amount of particulate matter accumulation in the DPF.

[0003] Due to the diversity of actual engine operating conditions, there may be cases where the model carbon loading is inaccurate, the growth rate is abnormally high, and the actual carbon loading is low. In this case, the model carbon loading will frequently trigger regeneration, which will seriously affect the vehicle's power and fuel consumption, increase the risk of oil dilution, and affect the customer's experience. At the same time, frequent high-temperature regeneration will reduce the service life of the aftertreatment system and bring regulatory risks.

[0004] In order to solve these problems, it is necessary to improve the accuracy of model carbon loading estimation and reduce the problems caused by inaccurate estimation, while also better meeting the increasingly stringent emission regulations. The current technology has no way to judge the accuracy of model carbon loading, and in the case of large deviation and rapid growth of model carbon loading, it will not be compared with differential pressure carbon loading, which will trigger regeneration frequently. SUMMARY

[0005] The main purpose of the present application is to provide an engine carbon loading control method, system, device and storage medium. The mutual relationship between the carbon loading model and the differential pressure carbon loading is calculated under certain conditions, the regeneration is triggered more accurately, and at the same time it is ensured that the engine will not trigger regeneration too quickly due to large deviation of the model carbon loading.

[0006] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0007] According to a first aspect of the embodiments of the present application, an engine carbon loading control method is provided, the method comprising:

[0008] The particulate filter collects and monitors the real-time carbon loading in the engine exhaust particulate matter;

[0009] if the first difference between the real-time carbon loading and the carbon loading triggering regeneration is less than a set lower threshold, determining whether a first set condition is met according to the real-time carbon loading and a differential pressure carbon loading, and whether a real-time differential pressure meets a second set condition;

[0010] if both are met, performing a model carbon loading maximum value limitation until the real-time differential pressure meets a third set condition, and the limitation on the model carbon loading maximum value is removed.

[0011] Optionally, the determining whether the first set condition is met according to the real-time carbon loading and the differential pressure carbon loading comprises:

[0012] calculating a second difference between the real-time carbon loading and the differential pressure carbon loading;

[0013] if the second difference is greater than a set upper threshold within a first set time length, it is determined that the first set condition is met.

[0014] Optionally, the determining whether the real-time differential pressure meets the second set condition comprises:

[0015] obtaining a real-time differential pressure of the particulate filter;

[0016] if the real-time differential pressure is less than a set differential pressure limit value at a corresponding volume flow within a first set time length, it is determined that the second set condition is met.

[0017] Optionally, the performing the model carbon loading maximum value limitation comprises:

[0018] setting the model carbon loading maximum value, and preventing the model carbon loading from continuing to increase within a set limitation time length.

[0019] Optionally, the real-time differential pressure meeting the third set condition comprises:

[0020] if the set limitation time length is elapsed, and the real-time carbon loading and the differential pressure carbon loading do not meet the first set condition, and / or the real-time differential pressure does not meet the second set condition, it is determined that the real-time differential pressure meets the third set condition.

[0021] Optionally, before the determining whether the first set condition is met according to the real-time carbon loading and the differential pressure carbon loading, the method further comprises: testing differential pressure sensor signal availability;

[0022] if an engine operating condition load meets a set load condition and no differential pressure sensor fault is reported, the real-time carbon loading and the differential pressure carbon loading, and the real-time differential pressure data are reliable.

[0023] According to a second aspect of the embodiments of the present application, an engine carbon loading control system is provided, the system comprising:

[0024] a real-time data acquisition module configured to collect and monitor a real-time carbon loading in particulate matter in engine exhaust gas by a particulate filter;

[0025] a determination module configured to determine whether a first set condition is met according to the real-time carbon loading and a pressure differential carbon loading and whether a second set condition is met according to a real-time pressure differential if a first difference between the real-time carbon loading and a carbon loading triggering regeneration is less than a lower limit threshold value;

[0026] a control module configured to perform a maximum model carbon loading limitation if both the first set condition and the second set condition are met, and release the maximum model carbon loading limitation if a third set condition is met by the real-time pressure differential.

[0027] Optionally, the determination module is specifically configured to:

[0028] calculate a second difference between the real-time carbon loading and the pressure differential carbon loading;

[0029] determine that the first set condition is met if the second difference is greater than an upper limit threshold value within a first set time length.

[0030] According to a third aspect of the embodiment of the present application, an electronic device is provided, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method of the first aspect.

[0031] According to a fourth aspect of the embodiment of the present application, a computer readable storage medium is provided, which stores computer readable instructions executable by a processor to implement the method of the first aspect.

[0032] In summary, the embodiment of the present application provides an engine carbon loading control method, system, device, and storage medium. The real-time carbon loading in particulate matter in engine exhaust gas is collected and monitored by a particulate filter. If a first difference between the real-time carbon loading and a carbon loading triggering regeneration is less than a lower limit threshold value, it is determined whether a first set condition is met according to the real-time carbon loading and a pressure differential carbon loading and whether a second set condition is met according to a real-time pressure differential. If both the first set condition and the second set condition are met, a maximum model carbon loading limitation is performed, and the maximum model carbon loading limitation is released if a third set condition is met by the real-time pressure differential. The interrelationship between the carbon loading model and the pressure differential carbon loading is calculated under certain conditions, which more accurately triggers regeneration and ensures that the engine will not trigger regeneration too quickly due to a large deviation of the model carbon loading. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0034] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that can be implemented by the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0035] Figure 1 The system architecture diagram provided by the embodiment of the present application is shown in the following figure:

[0036] Figure 2 The control method flow chart of engine carbon load provided by the embodiment of the present application is shown in the following figure:

[0037] Figure 3 The overall flow chart provided by the embodiment of the present application is shown in the following figure:

[0038] Figure 4 The block diagram of the engine carbon load control system provided by the embodiment of the present application is shown in the following figure:

[0039] Figure 5 The structure schematic diagram of an electronic device provided by the embodiment of the present application is shown in the following figure:

[0040] Figure 6 The schematic diagram of a computer readable storage medium provided by the embodiment of the present application is shown in the following figure.

[0041] The implementation of the purpose of the present application, functional characteristics and advantages will be further described with reference to the drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0043] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0044] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In addition, the technical solutions of each embodiment of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0047] The model carbon load is used to predict the accumulation of particulate matter in the DPF in order to determine when to perform the regeneration process of the DPF. The regeneration process refers to the burning of trapped particulate matter in the DPF by increasing the exhaust gas temperature, thereby restoring the clean state and filtration efficiency of the DPF. If the model-estimated carbon load is much higher than the actual value (i.e., the bias is large), the system can trigger regeneration too early or too frequently, even though the amount of particulate matter accumulated in the DPF does not actually require regeneration.

[0048] Therefore, ensuring the accuracy of the estimation of the model carbon load is crucial for optimizing the regeneration strategy of the DPF, improving fuel economy, protecting the engine and the emission control system, and enhancing customer satisfaction. The following are technical terms related to the present application:

[0049] DOC: Diesel Oxidation Catalyst

[0050] DPF: Diesel Particulate Filter

[0051] DOC temperature sensor: a sensor that measures the temperature upstream of the DOC.

[0052] DPF temperature sensor: a sensor that measures the temperature upstream of the DPF.

[0053] DPF differential pressure sensor: a sensor that measures the differential pressure upstream and downstream of the DPF.

[0054] Model carbon load: the carbon load calculated by the model.

[0055] Differential pressure carbon load: the carbon load calculated by the differential pressure of the DPF.

[0056] SCR (Selective Catalytic Reduction) technology is an important technology for diesel exhaust aftertreatment, mainly used to reduce nitrogen oxide (NOx) emissions in exhaust gas.

[0057] Figure 1 The system architecture diagram provided by the embodiments of the present application is shown, which adopts a structure with a diesel oxidation catalyst DOC + a diesel particulate filter DPF + a selective catalytic reduction system SCR, and there is a differential pressure sensor DPF at both ends of the diesel particulate filter temperature sensor DPF.

[0058] The diesel oxidation catalyst DOC is connected to the exhaust gas inlet, and a temperature sensor T4 is arranged at the exhaust gas inlet; a temperature sensor T5 is further arranged between the diesel oxidation catalyst DOC and the diesel particulate filter DPF; and the selective catalytic reduction system SCR is connected to the exhaust gas outlet.

[0059] Based on the above system architecture, Figure 2 The control method for engine carbon load provided by the embodiments of the present application is shown, which comprises:

[0060] Step 201: The particulate trap collects and monitors the real-time carbon load in the engine exhaust particulate matter;

[0061] Step 202: If the first difference between the real-time carbon load and the carbon load triggering regeneration is less than the set lower threshold, it is determined whether the first set condition is met according to the real-time carbon load and the differential pressure carbon load, and whether the second set condition is met according to the real-time differential pressure;

[0062] Step 203: If both conditions are met, the model carbon load maximum value is limited until the third set condition is met, and the limitation on the model carbon load maximum value is removed.

[0063] In a possible implementation, before determining whether the first set condition is met according to the real-time carbon load and the pressure differential carbon load, the method further comprises: testing the availability of the pressure differential sensor signal.

[0064] If the engine operating load meets the set load condition and no pressure differential sensor fault is reported, the real-time carbon load and the pressure differential carbon load, and the real-time pressure differential data are reliable.

[0065] In a possible implementation, in step 202, determining whether the first set condition is met according to the real-time carbon load and the pressure differential carbon load comprises:

[0066] calculating a second difference value of the real-time carbon load and the pressure differential carbon load; and if the second difference value is greater than a set upper threshold value within a first set time length, determining that the first set condition is met.

[0067] In a possible implementation, in step 202, determining whether the second set condition is met according to the real-time pressure differential comprises:

[0068] obtaining a real-time pressure differential of the particulate filter; and if the real-time pressure differential is less than a set pressure differential limit value under a corresponding volume flow within a first set time length, determining that the second set condition is met. The particulate filter includes, but is not limited to, a wall-flow particulate filter.

[0069] In a possible implementation, in step 203, performing the model carbon load maximum value limitation comprises:

[0070] setting the model carbon load maximum value to prevent the model carbon load from continuing to increase within a set limitation time length.

[0071] In a possible implementation, in step 203, determining that the third set condition is met according to the real-time pressure differential comprises:

[0072] if the set limitation time length is elapsed, and the real-time carbon load and the pressure differential carbon load do not meet the first set condition, and / or the real-time pressure differential does not meet the second set condition, determining that the third set condition is met.

[0073] In an emission control system of a diesel engine, a DPF (diesel particulate filter) functions to trap and reduce particulate matter (PM) in exhaust gas. When the carbon load (soot) accumulated in the DPF reaches a certain level, it needs to be removed through a regeneration process. The regeneration process generally includes heating the DPF to oxidize the trapped particulate matter, thereby reducing its volume or mass.

[0074] It can be seen that the engine carbon load control method provided by the embodiments of the present application specifically comprises the following method:

[0075] 1. Regeneration trigger condition: Regeneration trigger is usually based on the difference (△soot_rgn) between the model soot load (soot_sim) and the pre-set soot load for regeneration trigger (soot_rgn). When this difference is less than a set value (△soot_min), regeneration of the DPF is triggered.

[0076] 2. Consideration of growth rate: If the model soot load is growing at an unusually fast rate, even if the current soot load has not reached the level for regeneration trigger, it may indicate some abnormal situation.

[0077] 3. Role of pressure differential sensor: The pressure differential sensor measures the pressure differential before and after the DPF, which can be used to estimate the actual soot load (soot_mes). The signal stability and accuracy of the pressure differential sensor are crucial for reliable data analysis.

[0078] 4. Data analysis: Under stable engine operating conditions and without related faults, the data from the pressure differential sensor can be used to analyze the relationship between the model soot load and the actual soot load.

[0079] 5. Deviation of model soot load: If the difference (△soot) between the model soot load (soot_sim) and the pressure differential soot load (soot_mes) is large, and the pressure differential (P) of the DPF is less than the limit (P_max) at the corresponding volume flow (V), it may indicate that the model soot load is inaccurate.

[0080] 6. Limitation of model soot load: In the case where the model soot load is determined to be unreliable, in order to prevent frequent unnecessary regeneration, the maximum value of the model soot load can be limited. This limitation should last for a certain period of time, and even if the signal of the DPF pressure differential sensor is temporarily no longer stable or does not meet the conditions, the limitation will not be immediately lifted.

[0081] 7. Removal of limitation: If the DPF pressure differential sensor becomes reliable again and meets the specific conditions of soot load difference and pressure differential during the entire duration of the limitation, the limitation on the model soot load can be lifted.

[0082] Through this method, the regeneration strategy of the DPF can be optimized, unnecessary regeneration processes can be reduced, fuel efficiency can be improved, the risk of oil dilution can be reduced, and customer experience can be improved, while ensuring that emission control is within the range required by regulations.

[0083] Figure 3 The overall flowchart provided by the embodiments of the present application is shown, the mutual relationship between the soot load model and the pressure differential soot load is calculated under certain conditions, and regeneration is triggered. The method comprises:

[0084] Step 1: Real-time detection. When the difference between the model carbon load soot_sim and the carbon load soot_rgn for triggering regeneration is less than the set value Δsoot_min, the model carbon load growth rate is too fast, and it is considered that the engine model carbon load may be abnormal.

[0085] Step 2: Consider whether the differential pressure sensor signal is available. When the engine operating condition load is high and relatively stable, that is, the engine exhaust flow is stable, the change rate is small, and it lasts for a period of time, and there is no differential pressure sensor related fault report, it is considered that the differential pressure sensor signal is stable at this time, the measurement data is reliable, and the differential pressure and differential pressure carbon load data at this time can be used for data analysis.

[0086] Step 3: Use the reliable differential pressure and differential pressure carbon load data for analysis. If the model carbon load is not accurate, the difference between the model carbon load soot_sim and the differential pressure carbon load soot_mes is calculated at this time, which should be larger at this time, and since the actual carbon load is small at this time, the corresponding DPF differential pressure is small under the corresponding exhaust gas volume flow.

[0087] Step 4: If the model carbon load is greater than the differential pressure carbon load and the deviation exceeds the limit Δsoot_max, the DPF differential pressure P is less than the limit P_max under the corresponding volume flow, and this relationship exists for a long time, it is considered that the model carbon load is not reliable at this time. In order to prevent frequent regeneration, the maximum value of the model carbon load is limited, and this limitation should exist for a certain period of time and should not be eliminated because the DPF differential pressure is not reliable due to the working condition not meeting the conditions.

[0088] Step 5: If the DPF differential pressure sensor is released again within the limit duration, and the carbon load difference and differential pressure conditions are not met, the limit on the maximum value of the model carbon load is removed.

[0089] Through this process, the regeneration process of the DPF can be more accurately managed, unnecessary regeneration caused by inaccurate model carbon load can be avoided, the engine and aftertreatment system can be protected, fuel economy can be improved, and customer experience can be optimized.

[0090] When the model carbon load soot_sim is close to triggering regeneration, that is, the difference between the model carbon load soot_sim and the carbon load soot_rgn for triggering regeneration is less than the set value Δsoot_min, if the model carbon load growth rate is too fast from the end of the last regeneration to the present, it is considered that the engine model carbon load may be abnormal, and whether to limit the maximum value of the model carbon load is determined by analyzing the relationship between the engine model carbon load, the differential pressure carbon load, and the DPF differential pressure P-volume flow V.

[0091] Before analysis, it needs to be considered whether the differential pressure sensor signal is available. When the engine working condition load is high and relatively stable, that is, the engine exhaust flow is stable, the change rate is small and lasts for a period of time, and no differential pressure sensor related fault is reported, it is considered that the differential pressure sensor signal is stable and the measurement data is reliable, and the differential pressure and the differential pressure carbon load data at this time can be used for data analysis.

[0092] If the model carbon load is not accurate, the difference between the model carbon load soot_sim and the differential pressure carbon load soot_mes△soot must be large, and because the actual carbon load is small at this time, the corresponding DPF differential pressure is small under the corresponding exhaust gas volume flow. Therefore, if the model carbon load is greater than the differential pressure carbon load and the deviation exceeds the limit △soot_max, the differential pressure P of the DPF is less than the limit P_max under the corresponding volume flow, and this relationship exists for a long time, it is considered that the model carbon load is not reliable at this time, and in order to prevent frequent regeneration, the maximum value of the model carbon load is limited. This limitation should exist for a certain period of time and should not be eliminated because the DPF differential pressure sensor is no longer reliable due to the working condition not meeting the condition. If the DPF differential pressure sensor is released again and does not meet the carbon load difference and differential pressure conditions within the limit duration, the limit is removed.

[0093] The regeneration abnormal problem caused by the distortion of the carbon load model can be effectively avoided, and the differential pressure model is added for checking, so as to ensure more accurate triggering of regeneration.

[0094] In summary, the engine carbon load control method provided by the embodiment of the present application is provided. The real-time carbon load in the engine exhaust particulate matter is collected and monitored by the particulate filter; if the first difference between the real-time carbon load and the carbon load triggering regeneration is less than the set lower threshold, whether the first set condition is met according to the real-time carbon load and the differential pressure carbon load, and whether the second set condition is met by the real-time differential pressure; if both are met, the maximum value of the model carbon load is limited, until the third set condition is met by the real-time differential pressure, and the limitation on the maximum value of the model carbon load is removed. The mutual relationship between the carbon load model and the differential pressure carbon load is calculated under certain conditions, the regeneration is triggered more accurately, and it is ensured that the engine will not trigger regeneration too fast due to the large deviation of the model carbon load.

[0095] Based on the same technical concept, the embodiment of the present application also provides an engine carbon load control system, as shown in Figure 4 The system comprises:

[0096] The real-time data acquisition module 401 is used for collecting and monitoring the real-time carbon load in the engine exhaust particulate matter by the particulate filter;

[0097] The determination module 402 is configured to determine whether a first set condition is met according to the real-time carbon load and a differential pressure carbon load and whether a second set condition is met according to the real-time differential pressure, if the first difference between the real-time carbon load and the carbon load triggering regeneration is less than a set lower threshold value.

[0098] The control module 403 is configured to perform model carbon load maximum value limitation if both conditions are met, and release the limitation on the model carbon load maximum value if the real-time differential pressure meets a third set condition.

[0099] In a possible implementation, the determination module 402 is specifically configured to:

[0100] calculate a second difference between the real-time carbon load and the differential pressure carbon load.

[0101] If the second difference is greater than a set upper threshold value within a first set time length, it is determined that the first set condition is met.

[0102] The embodiments of the present application also provide an electronic device corresponding to the method provided in the foregoing embodiments. Please refer to Figure 5 which shows a schematic diagram of an electronic device provided by some embodiments of the present application. The electronic device 20 can include a processor 200, a memory 201, a bus 202 and a communication interface 203, the processor 200, the communication interface 203 and the memory 201 are connected through the bus 202; the memory 201 stores a computer program which can run on the processor 200, and the processor 200 runs the computer program to perform the method provided in any of the foregoing embodiments of the present application.

[0103] The memory 201 can include a high-speed random access memory (RAM) and can also include a non-volatile memory such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one physical port 203 (which can be wired or wireless), and the Internet, a wide area network, a local network, a metropolitan area network, etc. can be used.

[0104] The bus 202 can be an ISA bus, a PCI bus or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory 201 is configured to store a program, and the processor 200 executes the program after receiving an execution instruction, and the method disclosed in any of the foregoing embodiments of the present application can be applied to the processor 200 or realized by the processor 200.

[0105] The processor 200 can be an integrated circuit chip having a signal processing capability. In the implementation process, each step of the above method can be completed by the integrated logic circuit or the instruction in the form of software in the processor 200. The processor 200 described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a ready programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. Each method, step and logic block diagram disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, etc. The storage medium in the art. The storage medium is located in the memory 201, and the processor 200 reads the information in the memory 201, and combines the hardware to complete the steps of the above method.

[0106] The electronic device provided by the embodiments of the present application and the method provided by the embodiments of the present application have the same beneficial effects as the method they adopt, run or implement.

[0107] The embodiments of the present application also provide a computer readable storage medium corresponding to the method provided by the preceding embodiments. Please refer to Figure 6 The computer readable storage medium shown is an optical disc 30, and a computer program (i.e. program product) is stored on the optical disc 30. When the computer program is run by a processor, the method provided by any of the preceding embodiments is executed.

[0108] It should be noted that examples of the computer readable storage medium can also include, but are not limited to, a phase change memory (PRAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), other types of random access memory (RAM), a read only memory (ROM), an electrically erasable programmable read only memory (EEPROM), a flash memory or other optical, magnetic storage medium, which will not be described one by one here.

[0109] The computer readable storage medium provided by the above embodiments of the present application and the method provided by the embodiments of the present application have the same beneficial effects as the method adopted, run or implemented by the application program stored therein.

[0110] It is noted that

[0111] The algorithms and displays presented herein are not inherently related to any particular computer, virtual apparatus, or other apparatus. Various general purpose systems can be used with programs in accordance with the teachings herein, or it can prove convenient to construct more specialized apparatus to perform the required method steps. The required structure for a variety of these systems will be apparent from the description above. In addition, the present application is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages can be used to implement the teachings of the application as described herein, and any references below to specific languages are provided for disclosure of enablement only.

[0112] In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application can be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been described in detail in order to avoid obscuring the understanding of this description.

[0113] Similarly, it is to be understood that the mechanical details of the application that have been set forth above in the context of a few illustrative embodiments are for purposes of example only and that various modifications, changes and adaptations will be apparent to those skilled in the art. It is the following claims, including any amendments thereto, that define the scope of the application.

[0114] Those skilled in the art will appreciate that the modules in the apparatuses in the embodiments can be adapted and placed in one or more apparatuses other than the embodiments. The modules or units or components in the embodiments can be combined into one module or unit or component, and further can be divided into more sub-modules or sub-units or sub-components. Any combination of all the features disclosed in the specification (including the accompanying claims, abstract and drawings), and any method or apparatus so disclosed, can be used in any combination, except that at least some of such features and / or processes or units are mutually exclusive, unless explicitly stated otherwise. Each feature disclosed in the specification (including the accompanying claims, abstract and drawings), can be replaced by alternative features serving the same, equivalent or similar purpose, unless explicitly stated otherwise.

[0115] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0116] The various component embodiments of this application can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. Those skilled in the art will understand that microprocessors or digital signal processors (DSPs) can be used in practice to implement some or all of the functions of some or all of the components in the virtual machine creation apparatus according to embodiments of this application. This application can also be implemented as a device or apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such an implementation of this application can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0117] It should be noted that the above embodiments are illustrative of this application and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. This application can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0118] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0119] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural changes made under the concept of the present application, or direct / indirect application in other related technical fields, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A method for controlling engine carbon load, characterized in that, The method includes: Collect and monitor the carbon load of the model in the engine particulate filter; If the first difference between the model carbon loading and the carbon loading triggered for regeneration is less than a set lower threshold, then it is determined whether the first set condition is met based on the model carbon loading and the differential pressure carbon loading, and whether the real-time differential pressure meets the second set condition. If all conditions are met, the maximum carbon loading of the model will be limited until the real-time differential pressure meets the third set condition, at which point the limitation on the maximum carbon loading of the model will be lifted. The step of determining whether the first preset condition is met based on the model carbon loading and the pressure difference carbon loading includes: Calculate the second difference between the model carbon loading and the pressure difference carbon loading; If the second difference is greater than the set upper limit threshold within the first set time period, it is determined that the first set condition is met; Whether the real-time differential pressure meets the second preset condition includes: Obtain the real-time differential pressure of the particle trap; If the real-time differential pressure is less than the set differential pressure limit at the corresponding volumetric flow rate within the first set time period, it is determined that the second set condition is met. The limitation on the maximum carbon loading of the model includes: Set the maximum carbon loading of the model to prevent the carbon loading of the model from increasing further within a set time limit; Wherein, the real-time differential pressure satisfies the third preset condition, including: If the set time limit is exceeded and the model carbon loading and differential pressure carbon loading do not meet the first set condition, and / or the real-time differential pressure does not meet the second set condition, then it is determined that the real-time differential pressure meets the third set condition. Before determining whether the first set condition is met based on the model carbon loading and the differential pressure carbon loading, the method further includes: testing the availability of the differential pressure sensor signal; If the engine operating load meets the set load conditions and no differential pressure sensor fault is reported, then the differential pressure carbon load and the real-time differential pressure data are reliable.

2. An engine carbon load control system for performing the method of claim 1, characterized in that, The system includes: The real-time data acquisition module is used to collect and monitor the carbon loading of the model in the engine particulate filter; The determination module is used to determine whether the first set condition is met based on the model carbon loading and the pressure difference carbon loading if the first difference between the model carbon loading and the carbon loading triggered for regeneration is less than a set lower threshold, and whether the real-time pressure difference meets the second set condition. The control module is used to limit the maximum carbon loading of the model if all conditions are met, until the real-time differential pressure meets the third set condition, at which point the limit on the maximum carbon loading of the model is lifted.

3. The system as described in claim 2, characterized in that, The determination module is specifically used for: Calculate the second difference between the model carbon loading and the pressure difference carbon loading; If the second difference is greater than the set upper limit threshold within the first set time period, it is determined that the first set condition is met.

4. An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the method of claim 1.

5. A computer-readable storage medium, characterized in that, It stores computer-readable instructions that can be executed by a processor to implement the method as described in claim 1.

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