Particle trap regeneration control method, electronic equipment and vehicle
By acquiring and correcting the carbon load threshold of the particle trap, and performing regeneration control and forced regeneration according to real-time conditions, the problem of frequent regeneration failures in the prior art is solved, and the regeneration success rate and engine reliability are improved.
Patent Information
- Application Number
- CN202411987798.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2044-12-31
AI Technical Summary
Existing particle trap regeneration methods In users who often drive short mileage, driving regeneration is often interrupted and cannot be successfully regeneration for a long time, which may lead to engine failure.
By obtaining the historical number of parking regenerations of the particle trap, the default carbon load threshold is corrected to obtain the target carbon load threshold, and regeneration control is performed based on the real-time carbon load, determining whether the forced regeneration conditions are met, and the forced regeneration strategy is implemented.
It improves the success rate of regeneration of the particle trap, prevents diesel engine oil dilution and engine failure caused by frequent regeneration failures, and improves the reliability and durability of the engine.
Smart Images

Figure CN119754912A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle intelligent control technology, and in particular to a particulate filter regeneration control method, electronic equipment and vehicle. Background Art
[0002] The particle filter is used to capture soot particles in diesel engine exhaust and reduce particulate matter emissions. As the vehicle mileage increases, more and more soot particles will be deposited in the particle filter, causing the particle filter to become clogged. Therefore, when the soot particles accumulate to a certain extent in the particle filter, they must be burned through the regeneration process. Conventional regeneration methods have some shortcomings, especially for users who often drive short distances, stop and are unwilling to regenerate manually, regeneration is often interrupted, and failure to regenerate successfully for a long time may cause engine failure. Summary of the invention
[0003] In view of this, the purpose of the present application is to provide a particulate filter regeneration control method, electronic equipment and vehicle to improve the regeneration power of the particulate filter and prevent engine failure caused by frequent regeneration failure.
[0004] Based on the above purpose, the present application provides a particulate filter regeneration control method, comprising:
[0005] Get the historical number of parking regenerations of the particulate filter;
[0006] In response to determining that the historical parking regeneration number is greater than or equal to a preset parking regeneration number, a preset default carbon load threshold is corrected to obtain a target carbon load threshold, and regeneration control is performed according to the target carbon load threshold and a real-time carbon load of the particulate trap, and a regeneration control result is determined;
[0007] determining whether the particulate trap meets the forced regeneration condition based on the regeneration control result;
[0008] In response to determining that the particulate trap meets forced regeneration conditions, a forced regeneration strategy for the particulate trap is executed.
[0009] Further, the regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate trap, including:
[0010] In response to determining that the real-time carbon load is greater than or equal to a target carbon load threshold, obtaining vehicle driving information, and determining whether the particulate trap meets a driving regeneration condition according to the vehicle driving information;
[0011] In response to determining that the particulate trap meets the driving regeneration condition, the particulate trap is regenerated.
[0012] Since the real-time carbon load is greater than or equal to the target carbon load threshold, it indicates that the accumulation of soot particles in the particulate filter is already high. If the particulate filter meets the driving regeneration conditions at this time, regenerating the particulate filter can prevent excessive accumulation of soot particles and reduce the risk of particulate filter blockage, which not only improves the vehicle's operating efficiency and reliability, but also improves the user's driving experience.
[0013] Further, the vehicle driving information includes engine speed, vehicle speed and automatic cruise operation time; and judging whether the particulate filter meets the driving regeneration condition according to the vehicle driving information includes:
[0014] In response to determining that the engine speed is greater than or equal to a preset speed and the vehicle speed is greater than or equal to a preset vehicle speed, determining that the particulate trap meets the driving regeneration condition; or,
[0015] In response to determining that the engine speed is greater than or equal to the preset speed and the operating time is greater than or equal to the preset operating time, it is determined that the particulate trap meets the driving regeneration condition.
[0016] When both the engine speed and the vehicle speed reach the driving regeneration conditions of the particulate filter, it indicates that the vehicle is in an efficient operating state, the exhaust temperature is high, and the driving conditions are good, which is conducive to the combustion and removal of soot particles in the particulate filter. By ensuring that the vehicle is in operation for a long time to determine that the particulate filter meets the driving regeneration conditions, it can be ensured that there is enough time for the regeneration process to proceed, reducing the risk of regeneration being interrupted and improving the regeneration success rate.
[0017] Further, the regenerating the particle trap comprises:
[0018] Determine the regeneration time of a historical single driving regeneration, and determine a driving regeneration time that is less than the regeneration time;
[0019] The particulate trap is regenerated based on the driving regeneration time.
[0020] Because a shorter regeneration time reduces interruptions that may be encountered during the regeneration process, such as parking, deceleration, or other changes in driving conditions, determining a driving regeneration time that is less than the regeneration time and regenerating the particulate filter based on the driving regeneration time can ensure that the regeneration process proceeds smoothly. If the soot particles in the particulate filter are not completely removed during the shorter driving regeneration time, regeneration can be continued during the next driving process that meets the driving regeneration conditions. Staged regeneration ensures that the soot particles in the particulate filter can be completely removed in the end. The cumulative effect of multiple shorter regeneration operations is equivalent to a long regeneration, but it is easier to complete during actual driving, which improves the overall success rate of regeneration.
[0021] Further, the regeneration control result includes the number of successful regenerations and the number of failed regenerations; and judging whether the particulate trap meets the forced regeneration condition based on the regeneration control result includes:
[0022] In response to determining that the real-time carbon loading is less than a calibrated carbon loading threshold, determining that the forced regeneration condition is not met;
[0023] In response to determining that the real-time carbon loading is greater than or equal to a calibrated carbon loading threshold, determining a number of successful regenerations and a number of failed regenerations;
[0024] Determine the regeneration success rate according to the number of successes and the number of failures;
[0025] In response to determining that the regeneration power efficiency is less than or equal to a preset success rate, determining that the forced regeneration condition is met;
[0026] In response to determining that the regeneration power efficiency is greater than a preset success rate, it is determined that the forced regeneration condition is not met.
[0027] The regeneration success rate is determined based on the number of successful regenerations and the number of failed regenerations. If it is determined that the regeneration success rate is less than or equal to the preset success rate, it indicates that the current regeneration strategy fails to effectively remove the soot particles in the particle trap, which is usually caused by the interruption of the driving regeneration process. At this time, it is determined that the forced regeneration conditions are met, and the forced regeneration strategy for the particle trap will be executed to ensure that the soot particles in the particle trap are effectively removed. This not only ensures that the soot particles in the particle trap are completely removed, preventing the particle trap from clogging and engine failure, but also improves the operating efficiency and reliability of the vehicle.
[0028] Furthermore, the method further comprises:
[0029] In response to determining that the number of successes is greater than or equal to a preset number, the historical number of parking regenerations is reset to zero.
[0030] When the number of successes is greater than or equal to the preset number, it indicates that the regeneration process has been successful many times, and at the same time it indicates that the vehicle has been in good driving condition in the recent period. The historical number of parking regenerations is reset to zero, and the vehicle executes the driving regeneration strategy normally, thereby optimizing the regeneration frequency and timing and improving the user driving experience.
[0031] Further, the executing of the forced regeneration strategy for the particle trap includes:
[0032] In response to determining that the vehicle is in a parked state and the engine is in an idle state, a single injection amount and an injection frequency of fuel into the cylinder are controlled according to a temperature required for regeneration of the particulate filter, and other operations other than exiting the forced regeneration strategy are prohibited for the vehicle;
[0033] In response to determining that particulate trap regeneration is complete, the forced regeneration strategy is exited.
[0034] During the forced regeneration process, no other operations on the vehicle except exiting the regeneration strategy are allowed to take place, ensuring that the engine and exhaust system operate under stable conditions to provide continuous high-temperature exhaust gas, thereby ensuring the smooth progress of the regeneration process and avoiding the risk of the regeneration process being interrupted, thereby avoiding diesel engine oil dilution and engine failure caused by frequent regeneration failures.
[0035] Furthermore, before obtaining the historical parking regeneration times of the particulate trap, the method includes:
[0036] Obtain the detected carbon loading of the particulate filter;
[0037] In response to determining that the detected carbon load is greater than or equal to a default carbon load threshold, determining to perform on-the-road regeneration of the particulate trap;
[0038] In response to determining that the detected carbon load is greater than or equal to a calibrated carbon load threshold, it is determined that the particulate trap is to be regenerated in a parked state; the calibrated carbon load threshold is greater than a default carbon load threshold.
[0039] After obtaining the detected carbon load of the particulate filter, driving regeneration or parking regeneration is triggered according to the default carbon load threshold and the calibrated carbon load threshold, so that the soot particles are effectively removed, thereby ensuring the normal operation of the particulate filter and preventing particulate filter blockage and engine failure.
[0040] Based on the same inventive concept, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method as described above when executing the computer program.
[0041] Based on the same inventive concept, the present application also provides a vehicle, which includes the above-mentioned electronic device.
[0042] As can be seen from the above, the particle trap regeneration control method, electronic device and vehicle provided by the present application include: obtaining the historical parking regeneration times of the particle trap; in response to determining that the historical parking regeneration times are greater than or equal to the preset parking regeneration times, correcting the preset default carbon load threshold to obtain the target carbon load threshold, and performing regeneration control according to the target carbon load threshold and the real-time carbon load of the particle trap, and determining the regeneration control result; triggering the regeneration process when the soot particles accumulate to a lower level, preventing the soot particles from accumulating to an excessively high level, and reducing the risk of particle trap blockage; judging whether the particle trap meets the forced regeneration conditions based on the regeneration control results; and in response to determining that the particle trap meets the forced regeneration conditions, executing the forced regeneration strategy for the particle trap. Preventing the regeneration process from being interrupted, ensuring the success of the regeneration process, avoiding diesel engine oil dilution and engine failure caused by frequent regeneration, and improving the reliability and durability of the engine. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0044] Figure 1 This is a flow chart of a particulate filter regeneration control method according to an embodiment of the present application;
[0045] Figure 2 A flowchart of a particulate filter regeneration control method according to another embodiment of the present application;
[0046] Figure 3 A schematic diagram of a particulate filter regeneration control device according to an embodiment of the present application;
[0047] Figure 4 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0048] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.
[0049] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0050] In the related art, the particulate filter is a key component in the diesel engine emission control system. Its main function is to capture soot particles in the diesel engine exhaust, reduce particulate matter emissions, and meet increasingly stringent emission regulations. As the vehicle mileage increases, more and more soot particles will be deposited in the particulate filter, causing the particulate filter to be blocked, resulting in increased vehicle exhaust back pressure, poor exhaust, reduced power, increased fuel consumption, and even engine failure. Therefore, when soot particles accumulate to a certain extent in the particulate filter, they must be burned through the regeneration process to prevent the particulate filter from being blocked or burned due to excessive carbon deposition. In the prior art, conventional particulate filter regeneration methods mainly include driving regeneration mode and parking regeneration mode. When the vehicle operating conditions meet the driving regeneration conditions of the particulate filter, the vehicle automatically performs active regeneration of the particulate filter without user operation; and when the vehicle operating conditions cannot meet the driving regeneration conditions, the user is reminded to manually start the active regeneration of the particulate filter, that is, parking regeneration, when the vehicle is idling. However, this conventional regeneration method has some shortcomings, especially for users who often drive short distances and do not want to regenerate manually when parking. Driving regeneration is often interrupted, manual parking regeneration takes a long time, and parking regeneration is also easily interrupted. Failure to regenerate successfully for a long time may cause engine failure.
[0051] Based on the above problems, the applicant found that: the historical parking regeneration times of the particulate filter are obtained; in response to determining that the historical parking regeneration times are greater than or equal to the preset parking regeneration times, the preset default carbon load threshold is corrected to obtain the target carbon load threshold, and regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate filter, and the regeneration control result is determined; based on the regeneration control result, it is determined whether the particulate filter meets the forced regeneration conditions; in response to determining that the particulate filter meets the forced regeneration conditions, a forced regeneration strategy for the particulate filter is executed. This is to improve the regeneration power of the particulate filter during vehicle driving and idling, prevent frequent regeneration failures from causing diesel engine oil dilution and engine failure, improve the reliability and durability of the engine, and improve the driving experience of users.
[0052] The embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0053] The present application provides a particle trap regeneration control method, such as Figure 1 As shown, in some embodiments, the method is executed by a vehicle controller or a data processor independently provided by the vehicle controller. The subsequent embodiments are all illustrated by taking the vehicle controller as an example; the method includes:
[0054] S101, obtaining the historical number of parking regenerations of the particulate filter;
[0055] In specific implementation, the vehicle's electronic control unit will monitor and record the regeneration of the particulate filter in real time, including the type of each regeneration (driving regeneration or parking regeneration), the start and end time of regeneration, whether the regeneration is successful or not, etc. Parking regeneration refers to the particulate filter regeneration process performed by the vehicle when it is stationary. It is usually started when the vehicle is idling, and the engine burns and removes the soot particles in the particulate filter through specific operations (such as increasing the exhaust temperature). Parking regeneration is usually triggered because the vehicle fails to meet the conditions for driving regeneration during driving, or the driving regeneration is interrupted many times, resulting in a high level of carbon load in the particulate filter, which needs to be removed by parking regeneration. Understanding the historical number of parking regenerations helps to evaluate the vehicle's usage and the regeneration efficiency of the particulate filter. If the number of parking regenerations is too many, it may indicate that the vehicle's driving conditions are not conducive to driving regeneration, or the regeneration efficiency of the particulate filter is low. Therefore, the historical number of parking regenerations of the particulate filter is obtained, and based on the historical number of parking regenerations, data support is provided for the optimization of the regeneration strategy of the particulate filter.
[0056] S102, in response to determining that the historical parking regeneration number is greater than or equal to a preset parking regeneration number, modifying a preset default carbon load threshold to obtain a target carbon load threshold, performing regeneration control according to the target carbon load threshold and a real-time carbon load of the particulate trap, and determining a regeneration control result;
[0057] In a specific implementation, when it is determined that the historical number of parking regenerations is greater than or equal to the preset number of parking regenerations (exemplarily, the preset number of parking regenerations can be set to 2), the preset default carbon load threshold is corrected, and the default carbon load threshold is the threshold when the vehicle normally determines whether to regenerate while driving, that is, when the detected carbon load is greater than or equal to the default carbon load threshold (exemplarily, the default carbon load threshold can be set to 18g), it is determined to regenerate the particulate filter while driving; however, when it is determined that the historical number of parking regenerations is greater than or equal to the preset number of parking regenerations, the preset default carbon load threshold is corrected to obtain the target carbon load threshold, that is, the default carbon load threshold is reduced to obtain the target carbon load threshold (exemplarily, the target carbon load threshold can be set to the default carbon load threshold). 80% of the carbon load threshold); since the target carbon load threshold is less than the default carbon load threshold, when regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate trap, the sensitivity of triggering the regeneration of the particulate trap can be improved, so that the regeneration process can be triggered when the soot particles accumulate to a lower level, and at the same time, the time of a single regeneration can be reduced, thereby improving the success rate of regeneration; after regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate trap (the real-time carbon load is measured in real time by a pressure difference sensor and other monitoring equipment), it is also necessary to determine the regeneration control result, which includes the number of successful regenerations and the number of failed regenerations, etc. The regeneration control result can provide a reliable judgment basis for subsequent regeneration strategies.
[0058] S103, judging whether the particulate trap meets the forced regeneration condition based on the regeneration control result;
[0059] In specific implementation, the regeneration control result includes the number of successful regenerations and the number of unsuccessful regenerations, etc. Whether the particulate filter meets the forced regeneration conditions is judged based on the regeneration control result, which can effectively manage the regeneration process of the particulate filter, ensure that the particulate filter is cleaned in time under high carbon load conditions, prevent engine failure caused by blockage of the particulate filter, and improve the reliability and durability of the vehicle.
[0060] S104 . In response to determining that the particulate trap meets the forced regeneration condition, executing a forced regeneration strategy for the particulate trap.
[0061] In specific implementation, when it is determined that the particulate filter meets the forced regeneration conditions, the forced regeneration strategy for the particulate filter is executed, that is, when the vehicle is in a parked state and the engine is in an idle state, the single injection amount and injection frequency of the fuel into the cylinder are controlled according to the temperature required for the regeneration of the particulate filter. At the same time, other operations on the vehicle except exiting the forced regeneration strategy are prohibited to prevent the regeneration process from being interrupted, ensure the successful one-time regeneration of the particulate filter, and avoid diesel engine oil dilution and engine failure caused by frequent regeneration.
[0062] In this embodiment, when the historical parking regeneration times are greater than or equal to the preset parking regeneration times, the default carbon load threshold is reduced to obtain the target carbon load threshold, and the regeneration process is triggered when the soot particles accumulate to a lower level, so as to prevent the soot particles from accumulating to an excessively high level and reduce the risk of particle trap blockage. When it is determined that the particle trap meets the forced regeneration conditions, the forced regeneration strategy is executed to prevent the regeneration process from being interrupted, ensure the success of the regeneration process, avoid diesel engine oil dilution and engine failure caused by frequent regeneration, and improve the reliability and durability of the engine.
[0063] In some embodiments, Figure 2 As shown, the regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate trap, including:
[0064] S201, in response to determining that the real-time carbon load is greater than or equal to a target carbon load threshold, obtaining vehicle driving information, and determining whether the particulate trap meets a driving regeneration condition according to the vehicle driving information;
[0065] In specific implementation, the real-time carbon load refers to the amount of soot particles currently accumulated in the particulate filter, which can be monitored in real time by devices such as differential pressure sensors. When the real-time carbon load is greater than or equal to the target carbon load threshold, it indicates that the amount of soot particles accumulated in the particulate filter is already high and needs to be regenerated. At this time, the vehicle driving information is obtained, and it is judged whether the particulate filter meets the driving regeneration conditions according to the vehicle driving information. The vehicle driving information includes but is not limited to the engine speed, vehicle speed and the running time of the automatic cruise; when the engine speed, vehicle speed and the running time of the automatic cruise are used to judge whether the particulate filter meets the driving regeneration conditions. Since the target carbon load threshold is less than the default carbon load threshold, when the regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate filter, the sensitivity of triggering the regeneration of the particulate filter can be improved, so that the regeneration process is triggered when the soot particles accumulate to a lower level to avoid excessive accumulation of soot particles.
[0066] S202: In response to determining that the particulate trap meets the driving regeneration condition, regenerate the particulate trap.
[0067] In specific implementation, when it is determined that the particulate filter meets the driving regeneration conditions, the particulate filter is regenerated. Driving regeneration refers to increasing the exhaust temperature by controlling the operation of the engine during vehicle driving, thereby burning and removing the soot particles in the particulate filter. The specific operation usually includes: increasing the fuel injection amount or adjusting the injection timing to increase the exhaust temperature, controlling the engine's operating parameters to make the exhaust temperature reach the temperature required for particulate filter regeneration. Under the action of high temperature, the soot particles react with oxygen to generate carbon dioxide, which is discharged with the exhaust gas to complete the regeneration.
[0068] In this embodiment, since the target carbon load threshold is lower than the default carbon load threshold, the regeneration process can be triggered when the soot particles accumulate to a lower level. By triggering the regeneration in advance, the soot particles are prevented from accumulating excessively, and the risk of the particle trap being blocked is reduced, which not only improves the operating efficiency and reliability of the vehicle, but also improves the driving experience of the user.
[0069] In some embodiments, the vehicle driving information includes engine speed, vehicle speed, and automatic cruise operation duration; and judging whether the particulate collector meets the driving regeneration condition according to the vehicle driving information includes:
[0070] In response to determining that the engine speed is greater than or equal to a preset speed and the vehicle speed is greater than or equal to a preset vehicle speed, determining that the particulate trap meets the driving regeneration condition;
[0071] In specific implementation, when it is determined that the engine speed is greater than or equal to a preset speed (exemplarily, the preset speed can be set to 750r / min), and the vehicle speed is greater than or equal to a preset speed (exemplarily, the preset speed can be set to 60Km / h), it is determined that the particulate filter meets the driving regeneration conditions; wherein, the engine speed is greater than or equal to the preset speed, which is usually accompanied by a higher exhaust temperature, which is conducive to the regeneration of the particulate filter, and the vehicle speed is greater than or equal to the preset speed, indicating that the current driving condition of the vehicle is good, and it is likely to be in a state that requires long-term driving, providing sufficient time for driving regeneration, and it can be determined that the particulate filter meets the driving regeneration conditions.
[0072] In response to determining that the engine speed is greater than or equal to the preset speed and the operating time is greater than or equal to the preset operating time, it is determined that the particulate trap meets the driving regeneration condition.
[0073] In specific implementation, when it is determined that the engine speed is greater than or equal to the preset speed (exemplarily, the preset speed can be set to 750r / min), and the running time is greater than or equal to the preset running time (exemplarily, the preset running time can be set to 1min), it is determined that the particulate filter meets the driving regeneration conditions; wherein, the engine speed is greater than or equal to the preset speed, which is usually accompanied by a higher exhaust temperature, which is conducive to the regeneration of the particulate filter, and the running time of the automatic cruise is greater than or equal to the preset running time, indicating that the current driving condition of the vehicle is good, and it is likely to be in a state where long-term driving is required, providing sufficient time for driving regeneration, and it can be determined that the particulate filter meets the driving regeneration conditions; improving the regeneration success rate to effectively remove the carbon soot particles in the particulate filter, prevent the particulate filter from being blocked and the engine failure, and can also reduce the number of parking regenerations, thereby improving the vehicle's operating efficiency and the user's driving experience.
[0074] In this embodiment, when the engine speed and vehicle speed both reach the preset conditions, the vehicle is in an efficient operating state, the exhaust temperature is high, and the driving condition is good, which is conducive to the combustion and removal of soot particles in the particle collector. By ensuring the operation time of the automatic cruise, it can be ensured that the regeneration process has enough time to proceed, reduce the risk of regeneration being interrupted, and improve the regeneration success rate.
[0075] In some embodiments, regenerating the particle trap includes:
[0076] Determine the regeneration time of a historical single driving regeneration, and determine a driving regeneration time that is less than the regeneration time;
[0077] In specific implementation, the historical single driving regeneration time refers to the time required to complete a regeneration in the past driving regeneration process. The historical single driving regeneration time can be the average or median of the historical regeneration time. Based on the historical single driving regeneration time, a shorter driving regeneration time is determined, that is, the driving regeneration time is less than the regeneration time of the historical single driving regeneration; for example, if the regeneration time of the historical single driving regeneration is 22 minutes, 15 minutes can be used as the driving regeneration time.
[0078] The particulate trap is regenerated based on the driving regeneration time.
[0079] In specific implementation, the particulate filter is regenerated based on the driving regeneration time, and the driving regeneration time is less than the regeneration time of the historical single driving regeneration. Therefore, the success rate of the single regeneration can be improved and the regeneration can be avoided from being interrupted. At the same time, because the target carbon load threshold is less than the default carbon load threshold, when the regeneration control is performed according to the target carbon load threshold and the real-time carbon load of the particulate filter, the sensitivity of triggering the regeneration of the particulate filter can be improved, so that the regeneration process is triggered when the soot particles accumulate to a lower level. Therefore, if the soot particles in the particulate filter are not completely removed within the driving regeneration time, regeneration may continue during the next driving process that meets the driving regeneration conditions to completely remove the soot particles in the particulate filter.
[0080] In this embodiment, the shorter regeneration time reduces the interruptions that may be encountered during the regeneration process, such as parking, deceleration, or other changes in driving conditions, ensuring that the regeneration process proceeds smoothly. Since the target carbon load threshold is less than the default carbon load threshold, the regeneration process can be triggered when the soot particles accumulate to a lower level, thereby improving the sensitivity of the regeneration trigger; by triggering regeneration at a lower carbon load, carbon deposits are dealt with in advance, so as to prevent excessive accumulation of soot particles and reduce the risk of clogging of the particle collector. If the soot particles in the particle collector are not completely removed within a shorter driving regeneration time, regeneration can be continued during the next driving process that meets the driving regeneration conditions. Staged regeneration ensures that the soot particles in the particle collector can be completely removed in the end. The cumulative effect of multiple shorter regeneration operations is equivalent to a long regeneration, but it is easier to complete during actual driving, thereby improving the overall success rate of regeneration.
[0081] In some embodiments, the regeneration control result includes the number of successful regenerations and the number of failed regenerations; and judging whether the particulate trap meets the forced regeneration condition based on the regeneration control result includes:
[0082] In response to determining that the real-time carbon loading is less than a calibrated carbon loading threshold, determining that the forced regeneration condition is not met;
[0083] In specific implementation, the real-time carbon load refers to the amount of soot particles currently accumulated in the particulate filter, which can be monitored in real time by devices such as a differential pressure sensor. The calibrated carbon load threshold is greater than the default carbon load threshold (for example, the calibrated carbon load threshold can be set to 120% of the default carbon load threshold), which is used to determine whether the amount of soot particles accumulated in the particulate filter has reached the level that requires forced regeneration. If it is determined that the real-time carbon load is less than the calibrated carbon load threshold, it indicates that the amount of soot particles accumulated in the particulate filter has not reached the level that requires forced regeneration, and it is determined that the forced regeneration conditions are not met.
[0084] In response to determining that the real-time carbon loading is greater than or equal to a calibrated carbon loading threshold, determining a number of successful regenerations and a number of failed regenerations;
[0085] During specific implementation, if it is determined that the real-time carbon load is greater than or equal to the calibrated carbon load threshold, it indicates that the amount of accumulated soot particles in the particulate filter is relatively large. At this time, the number of successful regenerations and the number of failed regenerations are determined; the number of successful regenerations refers to the number of times the soot particles in the particulate filter were successfully cleared during the past driving regeneration process, and the number of failed regenerations refers to the number of times the soot particles in the particulate filter were not effectively cleared during the past driving regeneration process.
[0086] Determine the regeneration success rate according to the number of successes and the number of failures;
[0087] In specific implementation, the regeneration efficiency is calculated based on the number of successful regenerations and the number of failed regenerations. The calculation formula for the regeneration efficiency is as follows: Regeneration efficiency = number of successful regenerations / (number of successful regenerations + number of failed regenerations)*100%.
[0088] In response to determining that the regeneration power efficiency is less than or equal to a preset success rate, determining that the forced regeneration condition is met;
[0089] In specific implementation, if it is determined that the regeneration success rate is less than or equal to the preset success rate (for example, the preset success rate can be set to 60%), it indicates that the current regeneration strategy fails to effectively remove the soot particles in the particle trap, which is usually caused by the interruption of the driving regeneration process. At this time, it is determined that the forced regeneration conditions are met, and the forced regeneration strategy for the particle trap will be executed to ensure that the soot particles in the particle trap are effectively removed. Not only does it ensure that the soot particles in the particle trap are completely removed, preventing the particle trap from clogging and engine failure, but it also improves the operating efficiency and reliability of the vehicle.
[0090] In response to determining that the regeneration power efficiency is greater than a preset success rate, it is determined that the forced regeneration condition is not met.
[0091] During specific implementation, if the regeneration success rate is greater than the preset success rate, it indicates that the current driving regeneration regeneration strategy can effectively remove the soot particles in the particulate filter, which is sufficient to maintain the normal operation of the particulate filter, and there is no need to execute additional forced regeneration strategies. Therefore, it is determined that the forced regeneration conditions are not met, thereby avoiding unnecessary forced regeneration operations and reducing interference with vehicle operation.
[0092] In this embodiment, by calculating the regeneration success rate, the effectiveness of the current regeneration strategy can be evaluated. The regeneration success rate is calculated based on the number of successful regenerations and the number of failed regenerations, providing an objective evaluation index. If the regeneration success rate is lower than the preset success rate, forced regeneration will be triggered to ensure that the soot particles are completely removed.
[0093] In some embodiments, the method further comprises:
[0094] In response to determining that the number of successes is greater than or equal to a preset number, the historical number of parking regenerations is reset to zero.
[0095] In specific implementation, when the number of successes is greater than or equal to a preset number of times (exemplarily, the preset number of times can be set to 20 times), it indicates that the regeneration process is successful many times, that is, the strategy of regenerating the particulate filter when the particulate filter meets the driving regeneration conditions is successfully executed many times, and it also indicates that the vehicle has been in good driving condition in the recent period of time. Then, the historical parking regeneration number is reset to zero, and the vehicle normally executes the driving regeneration strategy, that is, in response to determining that the detected carbon load is greater than or equal to the default carbon load threshold, it is determined to perform driving regeneration on the particulate filter.
[0096] In this embodiment, by resetting the historical parking regeneration times to zero when the number of successful regenerations reaches or exceeds the preset number, the regeneration strategy can be dynamically adjusted to optimize the regeneration frequency and timing, improve the user's driving experience, protect the engine and particulate filter, optimize fuel economy, and provide data support and strategy optimization basis. It not only ensures that the soot particles in the particulate filter are effectively removed, prevents the particulate filter from clogging and engine failure, but also improves the operating efficiency and reliability of the vehicle.
[0097] In some embodiments, executing a forced regeneration strategy for the particle trap includes:
[0098] In response to determining that the vehicle is in a parked state and the engine is in an idle state, a single injection amount and an injection frequency of fuel into the cylinder are controlled according to a temperature required for regeneration of the particulate filter, and other operations other than exiting the forced regeneration strategy are prohibited for the vehicle;
[0099] In specific implementation, the vehicle parked state refers to the vehicle being stationary and not moving, which is usually confirmed by a vehicle speed sensor. When the vehicle speed is zero, it means that the vehicle is parked. The engine idle state refers to the engine running at a stable speed, which is suitable for regeneration operations. The regeneration of the particulate filter requires a higher exhaust temperature in order to burn the accumulated soot particles. In order to achieve the required regeneration temperature, the single injection amount and injection frequency of the fuel into the cylinder are controlled to increase the exhaust temperature; during the forced regeneration process, in order to ensure the smooth progress of the regeneration process, it is prohibited to perform other operations on the vehicle except exiting the forced regeneration strategy; for example, the driver is prohibited from accelerating, decelerating or other operations that affect the engine load, and the operation of other systems (such as air conditioning, entertainment system, etc.) is prohibited to avoid affecting the regeneration process. The purpose of prohibiting other operations is to ensure that the engine and exhaust system operate under stable conditions and provide continuous high-temperature exhaust to complete regeneration.
[0100] In response to determining that particulate trap regeneration is complete, the forced regeneration strategy is exited.
[0101] In specific implementation, the regeneration process continues until the soot particles in the particle trap are effectively removed, that is, the pressure difference of the particle trap returns to normal. When the soot particles in the particle trap are burned and removed, the pressure difference will drop significantly and return to a normal level. When the particle trap regeneration is completed, the forced regeneration strategy is exited, the restrictions on the vehicle and the engine are released, and the driver is allowed to perform normal driving operations.
[0102] In this embodiment, during the forced regeneration process, other operations on the vehicle are prohibited except for exiting the regeneration strategy, ensuring that the engine and exhaust system operate under stable conditions, providing continuous high-temperature exhaust, and ensuring the smooth progress of the regeneration process. By prohibiting the driver from accelerating, decelerating or other operations that affect the engine load, and prohibiting the operation of other systems (such as air conditioning, entertainment system, etc.), the risk of the regeneration process being interrupted is avoided, and the continuity and effectiveness of the regeneration process are ensured. Stable regeneration conditions and continuous high-temperature exhaust reduce the risk of the regeneration process being interrupted, improve the regeneration success rate, and avoid diesel engine oil dilution and engine failure caused by frequent regeneration failures.
[0103] In some embodiments, before obtaining the historical parking regeneration times of the particulate trap, the method includes:
[0104] Obtain the detected carbon loading of the particulate filter;
[0105] In specific implementation, the carbon load refers to the mass of soot particles accumulated in the particulate filter, usually in grams (g). The carbon load reflects the degree of blockage of the particulate filter and is an important parameter for judging the need for regeneration. The carbon load in the particulate filter can be inferred by detecting the pressure difference at both ends of the particulate filter, that is, the detection carbon load. The accumulation of soot particles will increase the pressure difference of the particulate filter. The greater the pressure difference, the higher the detection carbon load. By obtaining the detection carbon load of the particulate filter, the accumulation of soot particles in the particulate filter can be accurately judged.
[0106] In response to determining that the detected carbon load is greater than or equal to a default carbon load threshold, determining to perform on-the-road regeneration of the particulate trap;
[0107] In specific implementation, when the detected carbon load is greater than or equal to the default carbon load threshold, it indicates that the accumulation of soot particles in the particulate filter has reached a level that requires regeneration, and it is determined to regenerate the particulate filter while driving to prevent the particulate filter from being blocked, thereby ensuring the normal operation of the particulate filter.
[0108] In response to determining that the detected carbon load is greater than or equal to a calibrated carbon load threshold, it is determined that the particulate trap is to be regenerated in a parked state; the calibrated carbon load threshold is greater than a default carbon load threshold.
[0109] In specific implementation, parking regeneration is a regeneration operation performed when the vehicle is stationary, which aims to completely remove the soot particles in the particulate filter. Parking regeneration is usually triggered when there is a lot of soot particles accumulated and driving regeneration cannot effectively remove them. When it is determined that the detected carbon load is greater than or equal to the calibrated carbon load threshold (the calibrated carbon load threshold is greater than the default carbon load threshold), it is determined to perform parking regeneration on the particulate filter; it can perform more thorough regeneration in time when there is a lot of soot particles accumulated, prevent the particulate filter from being blocked, and ensure the normal operation of the particulate filter.
[0110] In this embodiment, after obtaining the detected carbon load of the particulate filter, driving regeneration or parking regeneration is triggered according to the default carbon load threshold and the calibrated carbon load threshold. The regeneration process can be accurately managed to ensure that the soot particles are effectively removed, prevent the particulate filter from being blocked, improve the operating efficiency and reliability of the vehicle, reduce user intervention, and optimize fuel economy. It not only ensures the normal operation of the particulate filter, prevents particulate filter blockage and engine failure, but also improves the user's driving experience.
[0111] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.
[0112] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
[0113] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a particulate filter regeneration control device.
[0114] refer to Figure 3 , the particulate trap regeneration control device comprises:
[0115] An acquisition module 701 is configured to acquire a historical number of parking regenerations of a particulate trap;
[0116] The judgment module 702 is configured to, in response to determining that the historical number of parking regenerations is greater than or equal to a preset number of parking regenerations, correct a preset default carbon load threshold to obtain a target carbon load threshold, perform regeneration control according to the target carbon load threshold and the real-time carbon load of the particulate trap, and determine a regeneration control result; determine whether the particulate trap meets the forced regeneration condition based on the regeneration control result; and execute a forced regeneration strategy for the particulate trap in response to determining that the particulate trap meets the forced regeneration condition.
[0117] Further, the determination module 702 is specifically used for:
[0118] In response to determining that the real-time carbon load is greater than or equal to a target carbon load threshold, obtaining vehicle driving information, and determining whether the particulate trap meets a driving regeneration condition according to the vehicle driving information;
[0119] In response to determining that the particulate trap meets the driving regeneration condition, the particulate trap is regenerated.
[0120] Furthermore, the judging module 702 is further configured to:
[0121] In response to determining that the engine speed is greater than or equal to a preset speed and the vehicle speed is greater than or equal to a preset vehicle speed, determining that the particulate trap meets the driving regeneration condition; or,
[0122] In response to determining that the engine speed is greater than or equal to the preset speed and the operating time is greater than or equal to the preset operating time, it is determined that the particulate trap meets the driving regeneration condition.
[0123] Furthermore, the judging module 702 is further configured to:
[0124] Determine the regeneration time of a historical single driving regeneration, and determine a driving regeneration time that is less than the regeneration time;
[0125] The particulate trap is regenerated based on the driving regeneration time.
[0126] Furthermore, the judging module 702 is further configured to:
[0127] In response to determining that the real-time carbon loading is less than a calibrated carbon loading threshold, determining that the forced regeneration condition is not met;
[0128] In response to determining that the real-time carbon loading is greater than or equal to a calibrated carbon loading threshold, determining a number of successful regenerations and a number of failed regenerations;
[0129] Determine the regeneration success rate according to the number of successes and the number of failures;
[0130] In response to determining that the regeneration power efficiency is less than or equal to a preset success rate, determining that the forced regeneration condition is met;
[0131] In response to determining that the regeneration power efficiency is greater than a preset success rate, it is determined that the forced regeneration condition is not met.
[0132] Furthermore, the judging module 702 is further configured to:
[0133] In response to determining that the number of successes is greater than or equal to a preset number, the historical number of parking regenerations is reset to zero.
[0134] Furthermore, the judging module 702 is further configured to:
[0135] In response to determining that the vehicle is in a parked state and the engine is in an idle state, a single injection amount and an injection frequency of fuel into the cylinder are controlled according to a temperature required for regeneration of the particulate filter, and other operations other than exiting the forced regeneration strategy are prohibited for the vehicle;
[0136] In response to determining that particulate trap regeneration is complete, the forced regeneration strategy is exited.
[0137] Furthermore, the judging module 702 is further configured to:
[0138] Obtain the detected carbon loading of the particulate filter;
[0139] In response to determining that the detected carbon load is greater than or equal to a default carbon load threshold, determining to perform on-the-road regeneration of the particulate trap;
[0140] In response to determining that the detected carbon load is greater than or equal to a calibrated carbon load threshold, it is determined that the particulate trap is to be regenerated in a parked state; the calibrated carbon load threshold is greater than a default carbon load threshold.
[0141] For the convenience of description, the above device is described in terms of functions divided into various modules. Of course, when implementing the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.
[0142] The device of the above embodiment is used to implement the corresponding particulate filter regeneration control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.
[0143] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the particulate filter regeneration control method described in any of the above embodiments is implemented.
[0144] Figure 4 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.
[0145] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.
[0146] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.
[0147] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.
[0148] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).
[0149] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).
[0150] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.
[0151] The electronic device of the above embodiment is used to implement the corresponding particulate trap regeneration control method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.
[0152] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the particulate filter regeneration control method described in any of the above embodiments.
[0153] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.
[0154] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the particulate trap regeneration control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.
[0155] Based on the same concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer program product, including computer program instructions. When the computer program instructions are run on a computer, the computer executes the method described in any of the above embodiments, which has the beneficial effects of the corresponding method embodiments and will not be repeated here.
[0156] It is understandable that before using the technical solutions of each embodiment of the present disclosure, the type, scope of use, usage scenarios, etc. of the personal information involved will be informed to the user in an appropriate manner, and the user's authorization will be obtained.
[0157] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly remind the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can independently choose whether to provide personal information to software or hardware such as an electronic device, application, server, or storage medium that performs the operation of the technical solution of the present disclosure according to the prompt message.
[0158] As an optional but non-limiting implementation, in response to receiving the user's active request, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.
[0159] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation of the present disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of the present disclosure.
[0160] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.
[0161] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.
[0162] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
[0163] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.
Claims
1. A particle trap regeneration control method, characterized in that: The particle collector is applied to a vehicle; the method comprises: Get the historical number of parking regenerations of the particulate filter; In response to determining that the historical parking regeneration number is greater than or equal to a preset parking regeneration number, a preset default carbon load threshold is corrected to obtain a target carbon load threshold, and regeneration control is performed according to the target carbon load threshold and a real-time carbon load of the particulate trap, and a regeneration control result is determined; determining whether the particulate trap meets the forced regeneration condition based on the regeneration control result; In response to determining that the particulate trap meets forced regeneration conditions, a forced regeneration strategy for the particulate trap is executed.
2. The particulate filter regeneration control method according to claim 1, characterized in that: The regeneration control according to the target carbon load threshold and the real-time carbon load of the particulate trap includes: In response to determining that the real-time carbon load is greater than or equal to a target carbon load threshold, obtaining vehicle driving information, and determining whether the particulate trap meets a driving regeneration condition according to the vehicle driving information; In response to determining that the particulate trap meets the driving regeneration condition, the particulate trap is regenerated.
3. The particulate filter regeneration control method according to claim 2, characterized in that: The vehicle driving information includes engine speed, vehicle speed, and automatic cruise operation duration; judging whether the particulate collector meets the driving regeneration condition according to the vehicle driving information includes: In response to determining that the engine speed is greater than or equal to a preset speed and the vehicle speed is greater than or equal to a preset vehicle speed, determining that the particulate trap meets the driving regeneration condition; or, In response to determining that the engine speed is greater than or equal to the preset speed and the operating time is greater than or equal to the preset operating time, it is determined that the particulate trap meets the driving regeneration condition.
4. The particulate filter regeneration control method according to claim 2, characterized in that: The regeneration of the particle trap comprises: Determine the regeneration time of a historical single driving regeneration, and determine a driving regeneration time that is less than the regeneration time; The particulate trap is regenerated based on the driving regeneration time.
5. The particulate filter regeneration control method according to claim 2, characterized in that: The regeneration control result includes the number of successful regenerations and the number of failed regenerations; and judging whether the particulate trap meets the forced regeneration condition based on the regeneration control result includes: In response to determining that the real-time carbon loading is less than a calibrated carbon loading threshold, determining that the forced regeneration condition is not met; In response to determining that the real-time carbon loading is greater than or equal to a calibrated carbon loading threshold, determining a number of successful regenerations and a number of failed regenerations; Determine the regeneration success rate according to the number of successes and the number of failures; In response to determining that the regeneration power efficiency is less than or equal to a preset success rate, determining that the forced regeneration condition is met; In response to determining that the regeneration power efficiency is greater than a preset success rate, it is determined that the forced regeneration condition is not met.
6. The particulate filter regeneration control method according to claim 5, characterized in that: The method further comprises: In response to determining that the number of successes is greater than or equal to a preset number, the historical number of parking regenerations is reset to zero.
7. The particulate filter regeneration control method according to claim 1, characterized in that: The method of executing a forced regeneration strategy for a particle trap includes: In response to determining that the vehicle is in a parked state and the engine is in an idle state, a single injection amount and an injection frequency of fuel into the cylinder are controlled according to a temperature required for regeneration of the particulate filter, and other operations other than exiting the forced regeneration strategy are prohibited for the vehicle; In response to determining that particulate trap regeneration is complete, the forced regeneration strategy is exited.
8. The particulate filter regeneration control method according to claim 1, characterized in that: Before obtaining the historical parking regeneration times of the particulate filter, the following steps are included: Obtain the detected carbon loading of the particulate filter; In response to determining that the detected carbon load is greater than or equal to a default carbon load threshold, determining to perform on-the-road regeneration of the particulate trap; In response to determining that the detected carbon load is greater than or equal to a calibrated carbon load threshold, it is determined that the particulate trap is to be regenerated in a parked state; the calibrated carbon load threshold is greater than a default carbon load threshold.
9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 1 to 8 is implemented.
10. A vehicle, characterized in that: The vehicle comprises the electronic device as claimed in claim 9.
Citation Information
Cited By
Heavy-duty commercial vehicle diesel engine type post-processing predictive regeneration control method and system
CN120487331A