Method, device and storage medium for timely regeneration control of integrated oxidizing trap

Abstract

The application discloses a timely regeneration control method and device of an integrated oxidation trap and a storage medium. The timely regeneration control method of the integrated oxidation trap comprises accumulating a regeneration interval time. When the regeneration interval time reaches a first threshold value, it is determined whether the absolute value of the difference between a pressure difference carbon load and a model carbon load is less than or equal to a second threshold value. If the absolute value of the difference between the pressure difference carbon load and the model carbon load is less than or equal to the second threshold value, when any one of the pressure difference carbon load and the model carbon load reaches a third threshold value, the integrated oxidation trap is triggered to regenerate. The timely regeneration control method of the integrated oxidation trap improves the intelligent degree of the regeneration triggering strategy of the integrated oxidation trap, and makes the integrated oxidation trap more economical.

Description

Technical Field

[0001] This invention belongs to the field of exhaust gas treatment technology, and particularly relates to a real-time regeneration control method, device and storage medium for an integrated oxidation trap. Background Technology

[0002] The diesel oxide catalyst (DOC) is installed before the diesel particulate filter (DPF) to oxidize NO in the exhaust gas to NO2, while simultaneously increasing the exhaust gas temperature and assisting the DPF in its normal operation. Currently, to reduce the size and cost of the DOC / DPF system, the DDPF (Distributed Dioxide Catalyst for Particulates) approach is commonly used. This approach utilizes catalysts with both DOC and DPF formulations coated in separate sections, combining the functions of both while minimizing size through integration, thus meeting both emission and space requirements.

[0003] When carbon particles accumulate to a certain level inside the DDPF, regeneration needs to be triggered to burn off the accumulated carbon. Triggering regeneration too early not only wastes fuel and increases operating costs but also affects the performance of the DDPF. Triggering regeneration too late can lead to excessive carbon buildup causing the DDPF to overheat and burn out due to excessive heat. Therefore, regeneration needs to be triggered at the appropriate time. Existing DDPF regeneration triggering strategies suffer from insufficient intelligence and poor economic efficiency. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] This invention provides a real-time regeneration control method for an integrated oxidation trap, the integrated oxidation trap being used to treat exhaust gas from an engine, the integrated oxidation trap having an inlet and an outlet, the method comprising: Cumulative regeneration interval time; When the regeneration interval reaches the first threshold, it is determined whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold. If the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold, the integrated oxidation trap will be regenerated when either the differential carbon loading or the model carbon loading reaches the third threshold.

[0006] The real-time regeneration control method for the integrated oxidation trap of this invention first accumulates the regeneration interval time. When the regeneration interval reaches a first threshold, it determines whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to a second threshold. If the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold, both the differential carbon loading and the model carbon loading can be considered reliable. When either the differential carbon loading or the model carbon loading reaches a third threshold, the integrated oxidation trap triggers regeneration, that is, it triggers regeneration according to the differential carbon loading and the model carbon loading. This improves the intelligence level of the regeneration triggering strategy of the integrated oxidation trap, making the integrated oxidation trap more economical.

[0007] In some embodiments, including: If the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold, the integrated oxidation trap will be triggered to regenerate when the regeneration interval reaches the fourth threshold.

[0008] The above scheme has the following technical effects: when the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold, both the differential carbon loading and the model carbon loading are considered unreliable. When the regeneration interval reaches the fourth threshold, the integrated oxidation trap is triggered to regenerate, that is, the integrated oxidation trap is triggered to regenerate according to the regeneration interval, ensuring that the integrated oxidation trap will not trigger regeneration too late, thereby improving the safety and reliability of the integrated oxidation trap.

[0009] In some embodiments, including: When the integrated oxidation trap triggers regeneration, it is determined whether the exhaust gas volume flow rate is greater than the fifth threshold. When the volumetric flow rate of the exhaust gas is greater than the fifth threshold, the first regeneration time is accumulated; When the temperature of the gas flowing through the outlet is greater than the sixth threshold, the second regeneration time is accumulated; When the first regeneration time is greater than the seventh threshold, the ratio of the second regeneration time to the first regeneration time is calculated; When the ratio of the second regeneration time to the first regeneration time is greater than the eighth threshold, the integrated oxidation trap is shut down from regeneration.

[0010] The above solution has the following technical effects: When the integrated oxidation trap triggers regeneration, it determines whether the exhaust gas volumetric flow rate is greater than the fifth threshold. When the exhaust gas volumetric flow rate is greater than the fifth threshold, the first regeneration time is accumulated. When the temperature of the gas flowing through the outlet is greater than the sixth threshold, the second regeneration time is accumulated. When the first regeneration time is greater than the seventh threshold, the ratio of the second regeneration time to the first regeneration time is calculated. When the ratio of the second regeneration time to the first regeneration time is greater than the eighth threshold, the regeneration efficiency is considered high, and regeneration can be considered complete, allowing the integrated oxidation trap to exit regeneration. This improves the intelligence level of the integrated oxidation trap's regeneration time, making the integrated oxidation trap more economical.

[0011] In some embodiments, including: When the ratio of the second regeneration time to the first regeneration time is less than or equal to the eighth threshold, it is determined whether the second regeneration time is greater than the ninth threshold. When the second regeneration time is greater than the ninth threshold, the integrated oxidation trap is deactivated from regeneration.

[0012] The above scheme has the following technical effects: when the ratio of the second regeneration time to the first regeneration time is less than or equal to the eighth threshold, the regeneration efficiency is considered low, and the regeneration process needs to continue, extending the regeneration time. When the first regeneration time is greater than the eighth threshold, regeneration can be considered complete, allowing the integrated oxidation trap to exit regeneration, thus improving the regeneration power of the integrated oxidation trap. While ensuring regeneration power, this makes the integrated oxidation trap more economical.

[0013] In some embodiments, including: When the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated; When the third regeneration time exceeds the tenth threshold, the integrated oxidation trap is deactivated from regeneration.

[0014] The above solution has the following technical effects: when the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated. When the third regeneration time is greater than the tenth threshold, the integrated oxidation trap is stopped from regeneration, thus avoiding damage to the integrated oxidation trap due to excessive regeneration time.

[0015] In some embodiments, before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to a second threshold when the regeneration interval reaches a first threshold, the method further includes: Obtain the volumetric flow rate of the exhaust gas; Obtain the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet; The pressure difference carbon loading is obtained based on the volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet.

[0016] The above solution has the following technical effects: it obtains the volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet, and obtains the differential carbon load based on the obtained volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet, thereby improving the accuracy of the differential carbon load of the integrated oxidation trap and ensuring the safety of the integrated oxidation trap.

[0017] In some embodiments, before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to a second threshold when the regeneration interval reaches a first threshold, the method further includes: Obtain the operating conditions of the engine; The carbon load of the model is obtained based on the operating conditions of the engine.

[0018] The above solution has the following technical effects: it obtains the engine's operating conditions, and based on the engine's operating conditions, it obtains the model carbon load, thereby improving the accuracy of the integrated oxidation trap's model carbon load and ensuring the safety of the integrated oxidation trap.

[0019] In some embodiments, the engine operating conditions include at least one of the engine speed, the engine torque, and the engine intake airflow.

[0020] The above solution has the following technical effects: engine speed, engine torque, and engine intake air flow are the three indicators that best reflect the engine's operating conditions. Based on at least one of the three, the model carbon load of the integrated oxidation trap can be obtained relatively accurately.

[0021] The present invention also provides a real-time regeneration control device for an integrated oxidation trap, the integrated oxidation trap having an inlet and an outlet, the device comprising: A differential pressure sensor is used to detect the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet; A calculation unit, configured to calculate the absolute value of the difference between the pressure differential carbon loading and the model carbon loading; and A control unit is used to control the integrated oxidation trap to trigger regeneration.

[0022] The present invention also provides a storage medium storing a program or instructions that, when executed by a processor, implement the steps of the method described above. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an integrated oxidation trap provided in one embodiment of the present invention; Figure 2 This is a regeneration triggering process of a real-time regeneration control method for an integrated oxidation trap provided in an embodiment of the present invention. Figure 1 ; Figure 3 This is a regeneration triggering process of a real-time regeneration control method for an integrated oxidation trap provided in an embodiment of the present invention. Figure 2 ; Figure 4 This is a process flow of the regeneration process in the real-time regeneration control method for an integrated oxidation trap provided in one embodiment of the present invention. Figure 1 ; Figure 5 This is a process flow of the regeneration process in the real-time regeneration control method for an integrated oxidation trap provided in one embodiment of the present invention. Figure 2 ; Figure 6 This is a process flow of the regeneration process in the real-time regeneration control method for an integrated oxidation trap provided in one embodiment of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the composition of a program product provided in one embodiment of the present invention.

[0025] Figure label: 1. Integrated oxidation trap; 11. Inlet; 12. Outlet 2. Differential pressure sensor; 3. First temperature sensor; 4. Second temperature sensor; 51. Processor; 52. Memory; 53. Input device; 54. Output device. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0027] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0028] like Figure 1 As shown, the integrated oxidation trap 1 includes a particulate filter and an oxidation catalytic converter installed before the particulate filter. The integrated oxidation trap 1 is used to treat exhaust gases from the engine. The integrated oxidation trap has an inlet 11 and an outlet 12. A first temperature sensor 3 is installed at the inlet 11 of the integrated oxidation trap 1 to detect the temperature of the gas flowing through the inlet 11. A second temperature sensor 4 is installed at the outlet 12 of the integrated oxidation trap 1 to detect the temperature of the gas flowing through the outlet 12. The integrated oxidation trap 1 also includes a differential pressure sensor 2 to detect the pressure difference between the gas flowing through the inlet 11 and the gas flowing through the outlet 12.

[0029] like Figure 2 As shown, a real-time regeneration control method for an integrated oxidation trap includes the following steps: Step S10: Accumulate regeneration interval time.

[0030] Step S20: When the regeneration interval reaches the first threshold, determine whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold.

[0031] Step S30: If the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold, when either the differential carbon loading or the model carbon loading reaches the third threshold, the integrated oxidation trap is triggered to regenerate.

[0032] It should be noted that: Regeneration refers to the process of oxidizing the accumulated soot (mainly carbon (C)) in the integrated oxidation trap into carbon dioxide (CO2) for discharge, restoring the filtration capacity of the integrated oxidation trap. Regeneration includes active regeneration and passive regeneration. Active regeneration involves raising the temperature of the particulate trap to approximately 600℃, causing the carbon (C) in the particulate trap to react with oxygen (O2), thus eliminating the carbon (C) in the particulate trap. Passive regeneration involves the reaction of nitrogen dioxide (NO2) with the carbon (C) in the particulate trap, eliminating the carbon (C) in the particulate trap. The temperature of passive regeneration is generally between 300℃ and 400℃. The nitrogen dioxide (NO2) in this case originates from the oxidation catalytic converter. The regeneration interval refers to the interval between active regeneration cycles.

[0033] Carbon loading based on Darcy's law and fluid mechanics principles refers to the pressure difference between the gas flowing through the inlet and outlet of an integrated oxidizer, measured by a differential pressure sensor installed on the oxidizer. By establishing a calibration relationship between flow resistance and carbon loading, the mass of soot is estimated, thus obtaining the mass of soot carried per liter of integrated oxidizer volume.

[0034] Model carbon loading refers to the carbon soot mass estimated by calculating the net cumulative carbon soot generation rate and oxidation consumption rate in real time based on the mass balance equation and chemical reaction kinetics, thus obtaining the carbon soot mass carried per liter of integrated oxidation trap volume.

[0035] The real-time regeneration control method for the integrated oxidation trap of this invention first accumulates the regeneration interval time. When the regeneration interval reaches a first threshold, it determines whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to a second threshold. If the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold, both the differential carbon loading and the model carbon loading can be considered reliable. When either the differential carbon loading or the model carbon loading reaches a third threshold, the integrated oxidation trap triggers regeneration, that is, it triggers regeneration according to the differential carbon loading and the model carbon loading. This improves the intelligence level of the regeneration triggering strategy of the integrated oxidation trap, making the integrated oxidation trap more economical.

[0036] For example, the first threshold is 110 hours. The second threshold ranges from 1 g / L to 1.5 g / L. For example, the second threshold can be 1 g / L, 1.1 g / L, 1.2 g / L, 1.3 g / L, 1.4 g / L, or 1.5 g / L. The third threshold is 4 g / L.

[0037] Specifically, when the ECU (Electronic Control Unit) detects that the integrated oxidation trap has completed regeneration, it begins to accumulate the regeneration interval time. When the regeneration interval time reaches a first threshold (e.g., 110 hours), it determines whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to a second threshold (e.g., 1 g / L). If the differential carbon loading is less than or equal to the second threshold (e.g., 1 g / L), the differential carbon loading is considered reliable. When either the differential carbon loading or the model carbon loading reaches a third threshold (e.g., 4 g / L), the integrated oxidation trap triggers regeneration. That is, when the differential carbon loading reaches the third threshold (e.g., 4 g / L) before the model carbon loading, the integrated oxidation trap triggers regeneration when the differential carbon loading reaches the third threshold (e.g., 4 g / L). When the model carbon loading reaches the third threshold (e.g., 4 g / L) before the differential carbon loading, the integrated oxidation trap will trigger regeneration.

[0038] The integrated oxidation trap enters its first regeneration cycle by monitoring engine operating time. When the engine operating time reaches the eleventh threshold (e.g., 110 hours), the integrated oxidation trap enters its first regeneration cycle. The integrated oxidation trap exits its first regeneration cycle by monitoring the model carbon loading. When the model carbon loading reaches the twelfth threshold (e.g., 0 g / L), the integrated oxidation trap exits its first regeneration cycle.

[0039] like Figure 3 As shown, a real-time regeneration control method for an integrated oxidation trap further includes the following steps: Step S301: If the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold, when the regeneration interval reaches the fourth threshold, the integrated oxidation trap is triggered to regenerate.

[0040] When the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold, both the differential carbon loading and the model carbon loading are considered unreliable. When the regeneration interval reaches the fourth threshold, the integrated oxidation trap is triggered to regenerate, that is, the integrated oxidation trap is triggered to regenerate according to the regeneration interval, ensuring that the integrated oxidation trap will not trigger regeneration too late, thereby improving the safety and reliability of the integrated oxidation trap.

[0041] Specifically, the cumulative regeneration interval time is used. When the regeneration interval time reaches the first threshold (e.g., 110 hours), it is determined whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold (e.g., 1 g / L). When the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold (e.g., 1 g / L), both the differential carbon loading and the model carbon loading are considered unreliable. The integrated oxidation trap is then abandoned from triggering regeneration based on the differential carbon loading and the model carbon loading, and instead, it is determined whether the regeneration interval time reaches the fourth threshold (e.g., 150 hours). When the regeneration interval time reaches the fourth threshold (e.g., 150 hours), the integrated oxidation trap is triggered for regeneration.

[0042] like Figure 4 As shown, a real-time regeneration control method for an integrated oxidation trap further includes the following steps: Step S40: When the integrated oxidation trap triggers regeneration, determine whether the exhaust gas volume flow rate is greater than the fifth threshold. Step S50: When the exhaust gas volume flow rate is greater than the fifth threshold, accumulate the first regeneration time; Step S60: When the temperature of the gas flowing through the outlet is greater than the sixth threshold, the second regeneration time is accumulated; Step S70: When the first regeneration time is greater than the seventh threshold, calculate the ratio of the second regeneration time to the first regeneration time; Step S80: When the ratio of the second regeneration time to the first regeneration time is greater than the eighth threshold, the integrated oxidation trap is shut down from regeneration.

[0043] When the integrated oxidation trap triggers regeneration, it checks if the exhaust gas volumetric flow rate exceeds the fifth threshold. If the exhaust gas volumetric flow rate exceeds the fifth threshold, the first regeneration time is accumulated. If the temperature of the gas flowing through the outlet exceeds the sixth threshold, the second regeneration time is accumulated. If the first regeneration time exceeds the seventh threshold, the ratio of the second regeneration time to the first regeneration time is calculated. If the ratio of the second regeneration time to the first regeneration time exceeds the eighth threshold, the regeneration efficiency is considered high, and regeneration is considered complete. The integrated oxidation trap then exits regeneration, improving the intelligence of the regeneration time and making it more economical.

[0044] Specifically, when the integrated oxidation trap triggers regeneration, it checks if the exhaust gas volumetric flow rate is greater than the fifth threshold (e.g., 1000 Nm³ / h). If the exhaust gas volumetric flow rate is greater than the fifth threshold (e.g., 1000 Nm³ / h), the first regeneration time is accumulated. If the temperature of the gas flowing through the outlet is greater than the sixth threshold (e.g., 600℃), the second regeneration time is accumulated. If the first regeneration time is greater than the seventh threshold (e.g., 110 hours), the ratio of the second regeneration time to the first regeneration time is calculated. If the ratio of the second regeneration time to the first regeneration time is greater than the eighth threshold (e.g., 70%), the regeneration efficiency is considered high, and regeneration is considered complete, at which point the integrated oxidation trap exits regeneration. The integrated oxidation trap exits regeneration, and both the first and second regeneration times are reset to zero.

[0045] like Figure 5 As shown, a real-time regeneration control method for an integrated oxidation trap further includes the following steps: Step S801: When the ratio of the second regeneration time to the first regeneration time is less than or equal to the eighth threshold, determine whether the second regeneration time is greater than the ninth threshold. Step S90: When the first regeneration time is greater than the ninth threshold, the integrated oxidation trap is stopped from regeneration.

[0046] When the ratio of the second regeneration time to the first regeneration time is less than or equal to the ninth threshold, the regeneration efficiency is considered low, and the regeneration process needs to continue. When the first regeneration time is greater than the ninth threshold, regeneration can be considered complete, and the integrated oxidation trap can exit the regeneration process.

[0047] Specifically, when the integrated oxidation trap triggers regeneration, it checks if the exhaust gas volumetric flow rate is greater than the fifth threshold (e.g., 1000 Nm³ / h). If the exhaust gas volumetric flow rate is greater than the fifth threshold (e.g., 1000 Nm³ / h), the first regeneration time is accumulated. If the temperature of the gas flowing through the outlet is greater than the sixth threshold (e.g., 600℃), the second regeneration time is accumulated. If the first regeneration time is greater than the seventh threshold (e.g., 110 hours), the ratio of the second regeneration time to the first regeneration time is calculated. If the ratio of the second regeneration time to the first regeneration time is less than or equal to the eighth threshold (e.g., 70%), the regeneration efficiency is considered low, and the regeneration process needs to continue. At this point, it checks if the second regeneration time is greater than the ninth threshold (e.g., 110 hours). If the first regeneration time is greater than the ninth threshold (e.g., 110 hours), regeneration is considered complete, and the integrated oxidation trap exits the regeneration process.

[0048] like Figure 6 As shown, a real-time regeneration control method for an integrated oxidation trap further includes the following steps: Step S401: When the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated; Step S501: When the third regeneration time is greater than the tenth threshold, the integrated oxidation trap is stopped from regeneration.

[0049] When the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated. When the third regeneration time exceeds the tenth threshold, the integrated oxidation trap is stopped from regeneration to avoid damage to the integrated oxidation trap due to excessive regeneration time.

[0050] Specifically, when the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated. When the third regeneration time exceeds the tenth threshold (e.g., 210 hours), the integrated oxidation trap exits regeneration and the third regeneration time is reset to zero.

[0051] In some embodiments, before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold when the regeneration interval reaches the first threshold, the method further includes: Obtain the volumetric flow rate of the exhaust gas; Obtain the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet; The pressure difference carbon loading is obtained based on the volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet.

[0052] The volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet are obtained. Based on the obtained volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet, the differential carbon load is obtained, which improves the accuracy of the differential carbon load of the integrated oxidation trap and ensures the safety of the integrated oxidation trap.

[0053] In some embodiments, before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold when the regeneration interval reaches the first threshold, the method further includes: Obtain the engine's operating conditions; The carbon load of the model is obtained based on the engine's operating conditions.

[0054] By acquiring the engine's operating conditions and determining the model's carbon load based on those conditions, the accuracy of the integrated oxidation trap's model carbon load is improved, ensuring the safety of the integrated oxidation trap.

[0055] In some embodiments, the engine operating conditions include at least one of the following: engine speed, engine torque, and engine intake airflow.

[0056] Engine speed, engine torque, and engine intake airflow are the three indicators that best reflect engine operating conditions. Based on at least one of these three parameters, a relatively accurate model carbon load of the integrated oxidation trap can be obtained.

[0057] This embodiment also provides a real-time regeneration control device for an integrated oxidation trap, including: Differential pressure sensor, used to detect the differential pressure in an integrated oxidation trap; The control unit is used to control the integrated oxidation trap to trigger regeneration.

[0058] This embodiment also provides a storage medium that stores a program or instructions, which, when executed by a processor, implement the steps of the method described above.

[0059] This embodiment also provides a program product, such as Figure 7 As shown, the program product includes one or more processors 51 and memory 52. Figure 7 Take the 51 processor as an example.

[0060] The controller may also include an input device 53 and an output device 54.

[0061] The processor 51, memory 52, input device 53, and output device 54 can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0062] Processor 51 can be a central processing unit (CPU), or it can be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips. The general-purpose processor can be a microprocessor or any conventional processor.

[0063] The memory 52, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as the program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 51 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions, and modules stored in the memory 52, thereby implementing the steps of the above-described method embodiments.

[0064] The memory 52 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created by the use of the processing device operated by the server. Furthermore, the memory 52 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 52 may optionally include memory remotely located relative to the processor 51, and these remote memories may be connected to a network connection device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0065] Input device 53 can receive input digital or character information, and generate key signal inputs related to driver settings and function control of the server's processing unit. Output device 54 may include display devices such as a display screen.

[0066] One or more modules are stored in memory 52, and when executed by one or more processors 51, they perform actions such as... Figure 5 The method shown.

[0067] Those skilled in the art will understand that all or part of the processes in the above method embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above method embodiments. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), random access memory (RAM), flash memory (FM), hard disk drive (HDD), or solid-state drive (SSD), etc.; the storage medium can also include combinations of the above types of memory.

[0068] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for real-time regeneration control of an integrated oxidation trap, characterized in that, The integrated oxidation trap is used to treat exhaust gases from an engine. The integrated oxidation trap has an inlet and an outlet. The method includes: Cumulative regeneration interval time; When the regeneration interval reaches the first threshold, it is determined whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold. If the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold, the integrated oxidation trap will be regenerated when either the differential carbon loading or the model carbon loading reaches the third threshold.

2. The method according to claim 1, characterized in that, include: If the absolute value of the difference between the differential carbon loading and the model carbon loading is greater than the second threshold, the integrated oxidation trap will be triggered to regenerate when the regeneration interval reaches the fourth threshold.

3. The method according to claim 2, characterized in that, include: When the integrated oxidation trap triggers regeneration, it is determined whether the exhaust gas volume flow rate is greater than the fifth threshold. When the volumetric flow rate of the exhaust gas is greater than the fifth threshold, the first regeneration time is accumulated; When the temperature of the gas flowing through the outlet is greater than the sixth threshold, the second regeneration time is accumulated; When the first regeneration time is greater than the seventh threshold, the ratio of the second regeneration time to the first regeneration time is calculated; When the ratio of the second regeneration time to the first regeneration time is greater than the eighth threshold, the integrated oxidation trap is shut down from regeneration.

4. The method according to claim 3, characterized in that, include: When the ratio of the first regeneration time to the second regeneration time is less than or equal to the eighth threshold, it is determined whether the second regeneration time is greater than the ninth threshold. When the second regeneration time is greater than the ninth threshold, the integrated oxidation trap is deactivated from regeneration.

5. The method according to claim 2, characterized in that, include: When the integrated oxidation trap triggers regeneration, the third regeneration time is accumulated; When the third regeneration time exceeds the tenth threshold, the integrated oxidation trap is deactivated from regeneration.

6. The method according to claim 1, characterized in that, Before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold when the regeneration interval reaches the first threshold, the following steps are also included: Obtain the volumetric flow rate of the exhaust gas; Obtain the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet; The pressure difference carbon loading is obtained based on the volumetric flow rate of the exhaust gas and the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet.

7. The method according to claim 1, characterized in that, Before determining whether the absolute value of the difference between the differential carbon loading and the model carbon loading is less than or equal to the second threshold when the regeneration interval reaches the first threshold, the following steps are also included: Obtain the operating conditions of the engine; The carbon load of the model is obtained based on the operating conditions of the engine.

8. The method according to claim 7, characterized in that, The engine operating conditions include at least one of the following: engine speed, engine torque, and engine intake airflow.

9. A real-time regeneration control device for an integrated oxidation trap, characterized in that, The integrated oxidation trap has an inlet and an outlet, and the device includes: A differential pressure sensor is used to detect the pressure difference between the gas flowing through the inlet and the gas flowing through the outlet; A calculation unit, configured to calculate the absolute value of the difference between the pressure differential carbon loading and the model carbon loading; and A control unit is used to control the integrated oxidation trap to trigger regeneration.

10. A storage medium, characterized in that, The storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 8.

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