CN117248988A - Particle catcher regeneration interruption method, device, electronic equipment and storage medium - Google Patents
Particle catcher regeneration interruption method, device, electronic equipment and storage medium Download PDFInfo
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- CN117248988A CN117248988A CN202311472462.9A CN202311472462A CN117248988A CN 117248988 A CN117248988 A CN 117248988A CN 202311472462 A CN202311472462 A CN 202311472462A CN 117248988 A CN117248988 A CN 117248988A
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- 230000008929 regeneration Effects 0.000 title claims abstract description 247
- 238000011069 regeneration method Methods 0.000 title claims abstract description 247
- 239000002245 particle Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000012937 correction Methods 0.000 claims abstract description 54
- 239000000446 fuel Substances 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000004590 computer program Methods 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000004071 soot Substances 0.000 description 5
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- 230000006870 function Effects 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The embodiment of the invention discloses a method and a device for interrupting regeneration of a particle catcher, electronic equipment and a storage medium, wherein the method comprises the following steps: in the regeneration process of the particle catcher, the corresponding engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power of the target vehicle are obtained; determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio; determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power; and if the current regeneration residual duration is detected to meet the first regeneration interruption condition, the particle trap of the target vehicle is controlled to interrupt regeneration. By the technical scheme provided by the embodiment of the invention, whether regeneration is interrupted or not can be automatically judged in the regeneration process of the particle catcher without manual participation, the accuracy of the regeneration interruption of the particle catcher is improved, and the regeneration effect, the safety of a user and the service life of parts are ensured.
Description
Technical Field
The embodiment of the invention relates to the technology of automobile parts, in particular to a method and a device for interrupting regeneration of a particle catcher, electronic equipment and a storage medium.
Background
With the wide application of in-cylinder direct injection technology in gasoline engines, the fuel economy is improved, and more soot particulate emissions are brought about as compared with the traditional port injection engine. A particulate trap is a ceramic filter installed in an automotive engine exhaust system that traps and filters particulate emissions before they enter the atmosphere, reducing the amount of soot particulate emissions from the vehicle. The particulate trap requires combustion cleaning, i.e. regeneration, at the capture of a certain amount of soot particles.
At present, during the regeneration process of the particle trap, the artificial interruption is often carried out when the current condition of unsuitable continuous regeneration is judged based on the artificial experience. However, this manual interrupt method may cause erroneous operation due to inaccurate judgment. For example, a regeneration interruption may affect the effectiveness of the regeneration too early or too late and may affect the useful life of components in the vehicle, or even cause damage to components in the vehicle. It can be seen that there is a great need for a way to quickly and accurately control the interruption of regeneration of a particle trap.
Disclosure of Invention
The embodiment of the invention provides a method, a device, electronic equipment and a storage medium for interrupting regeneration of a particle catcher, which are used for automatically judging whether to interrupt the regeneration in the regeneration process of the particle catcher without manual participation, improving the accuracy of interrupting the regeneration of the particle catcher and ensuring the regeneration effect, the safety of a user and the service life of parts.
In a first aspect, an embodiment of the present invention provides a method for interrupting regeneration of a particle catcher, including:
in the regeneration process of the particle catcher, the corresponding engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power of the target vehicle are obtained;
determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio;
determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power;
and if the current regeneration residual duration is detected to meet a first regeneration interruption condition, controlling a particle catcher of the target vehicle to interrupt regeneration.
In a second aspect, an embodiment of the present invention provides a particulate trap regeneration interrupt device, including:
the vehicle parameter acquisition module is used for acquiring the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle in the regeneration process of the particle catcher;
a current correction factor determination module configured to determine a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio;
The current regeneration residual time length determining module is used for determining the current regeneration residual time length based on the engine model, the current correction factor and the current engine power;
and the interrupted regeneration control module is used for controlling the particle catcher of the target vehicle to interrupt regeneration if the current regeneration residual duration is detected to meet a first regeneration interruption condition.
In a third aspect, an embodiment of the present invention provides an electronic device, including:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a particle trap regeneration interruption method as provided by any embodiment of the present invention.
In a fourth aspect, embodiments of the present invention provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a particle trap regeneration interruption method as provided by any of the embodiments of the present invention.
According to the technical scheme, in the regeneration process of the particle catcher, the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle are obtained; determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio; determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power; if the current regeneration residual duration meets the first regeneration interruption condition, the particle catcher of the target vehicle is controlled to interrupt regeneration, so that whether regeneration is interrupted or not is automatically judged in the regeneration process of the particle catcher, manual participation is not needed, the accuracy of the regeneration interruption of the particle catcher is improved, the damage of the regeneration process to each part in the target vehicle is reduced, the service life of the parts in the target vehicle is ensured while the regeneration effect is ensured, and the safety of a user in the target vehicle is further improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for interrupting regeneration of a particle catcher according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a method for interrupting regeneration of a particle catcher according to a second embodiment of the present invention;
FIG. 3 is an exemplary diagram of a current regeneration remaining duration determination process according to a second embodiment of the present invention;
FIG. 4 is a schematic structural view of a regeneration interrupt device for a particle catcher according to a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device implementing a method for interrupting regeneration of a particle catcher according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a flowchart of a method for interrupting regeneration of a particle catcher, which is applicable to a case of automatically controlling the regeneration of the particle catcher of a target vehicle during the regeneration process of the particle catcher, according to an embodiment of the present invention, the method may be performed by a particle catcher regeneration interrupt device, the particle catcher regeneration interrupt device may be implemented in a form of hardware and/or software, and the particle catcher regeneration interrupt device may be configured in an electronic device. As shown in fig. 1, the method includes:
s110, in the regeneration process of the particle catcher, the corresponding engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power of the target vehicle are obtained.
The particulate traps may include, among other things, gasoline engine particulate traps (Gasoline Particulate Filter, GPF) and diesel particulate traps (Diesel Particulate Filter, DPF). The target vehicle may refer to a vehicle that is undergoing a particulate trap regeneration. The particulate trap may trap and filter particulate emissions during travel of the target vehicle before they enter the atmosphere, reducing the amount of soot particulate emissions from the target vehicle. As the mass of soot particles captured by the particle trap increases, the target vehicle needs to perform particle trap regeneration, thereby ensuring the normal operation and filtering effect of the particle trap.
Specifically, after the target vehicle starts the regeneration operation of the particle trap, the controller in the target vehicle may acquire the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle, so as to monitor the working condition of the target vehicle in real time through the parameters.
For example, if the driver cannot control the target vehicle to perform the particulate trap regeneration, the target vehicle may be driven to the nearest car 4S shop, and the worker may perform the parking regeneration operation on the target vehicle. For example, a worker connects a diagnostic apparatus to a target vehicle, transmits a regeneration instruction to the target vehicle through the diagnostic apparatus, and transmits an interrupt regeneration instruction to the target vehicle through the diagnostic apparatus when the interrupt regeneration is required, thereby completing the parking regeneration. After the vehicle is regenerated, the vehicle can be maintained against the failure that the driver cannot control the target vehicle to regenerate the particle trap.
S120, determining a current correction factor based on the engine model, the current ignition efficiency and the current air-fuel ratio.
The correction factor may refer to a parameter for adjusting the parameter value. The correction factor may be understood as a correction parameter. The current correction factor may be a parameter indicating that the current ignition efficiency and the current air-fuel ratio are corrected.
Specifically, a correction factor set between the ignition efficiency and the air-fuel ratio of the target vehicle is determined based on the engine model, and a current correction factor corresponding to the current ignition efficiency and the current air-fuel ratio is determined from the correction factor set corresponding to the target vehicle based on the current ignition efficiency and the current air-fuel ratio.
S130, determining the current regeneration residual duration based on the engine model, the current correction factor and the current engine power.
The current remaining regeneration time period may be a time period required for completion of a regeneration operation performed by the target vehicle. As regeneration continues, the current regeneration duration remaining should be less and less. It is understood that the current regeneration remaining time period is a countdown.
Specifically, the current correction factor and the current engine power are multiplied to determine corrected current engine power, and the corrected current engine parameter and the preset parameter are multiplied to determine a multiplication result. And determining the corresponding relation between each multiplication result corresponding to the target vehicle and the regeneration residual duration based on the engine model, and determining the current regeneration residual duration required by the regeneration of the target vehicle from the corresponding relation based on the determined multiplication result.
For example, when a particle trap regeneration is activated, a timer may be associated with starting, which may display the current regeneration remaining duration in real time. And if the current regeneration residual time is reduced to 0, outputting a logic value 1. "1" represents that a regeneration interrupt signal should be issued at this time. This bit has a higher priority and interrupts the regeneration operation even if regeneration is not completed.
And S140, if the current regeneration residual duration is detected to meet the first regeneration interruption condition, the particle catcher of the target vehicle is controlled to interrupt regeneration.
The first regeneration interruption condition may refer to a condition that regeneration of the particle trap must be stopped, so as to avoid damage to certain parts or reduction of service life of the target vehicle, and ensure safety of personnel in the vehicle.
Specifically, if the current regeneration residual duration is detected to reach the preset duration, and the current regeneration residual duration is indicated to meet the first regeneration interruption condition, the particle catcher of the target vehicle is controlled to interrupt regeneration. For example, the preset duration may be, but is not limited to, 0 seconds or the duration required to interrupt regeneration.
According to the technical scheme, in the regeneration process of the particle catcher, the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle are obtained; determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio; determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power; if the current regeneration residual duration is detected to meet the first regeneration interruption condition, the particle catcher of the target vehicle is controlled to interrupt the regeneration, so that whether the regeneration is interrupted or not is automatically judged in the regeneration process of the particle catcher, the artificial participation is not needed, the accuracy of the regeneration interruption of the particle catcher is improved, the damage of the regeneration process to each part in the target vehicle is reduced, the service life of the parts in the target vehicle is ensured while the regeneration effect is ensured, and the safety of a user in the target vehicle is further improved.
On the basis of the technical scheme, the method further comprises the following steps: if the current regeneration residual duration is detected not to meet the first regeneration interruption condition, acquiring target component information corresponding to a target component in the target vehicle, wherein the target component information comprises target operation parameters and/or target component states; and if the at least one piece of target component information is detected to meet the second regeneration interruption condition, the particle trap of the target vehicle is controlled to interrupt regeneration.
The target component may be an automobile component in the target vehicle, which has a precision requirement on a working environment or an operation parameter of the target component. For example, the target components may include, but are not limited to, an engine requiring operating temperatures and a turbocharger requiring operating temperatures. The operating parameter may refer to the value reached by the component at the time of operation. For example, the operating parameters may include, but are not limited to, vehicle speed and engine temperature. Component status may refer to status information of a component. For example, the status information of the engine may include, but is not limited to, whether the engine is capable of operating properly or whether the engine knocks. The second regeneration interrupt condition may be a condition where regeneration of the particulate trap of the vehicle operating condition and the component is stopped.
Specifically, if the current regeneration residual duration is detected not to meet the first regeneration interruption condition, which indicates that the regeneration of the particle catcher is not completed, continuing to regenerate the particle catcher, and acquiring target component information corresponding to a target component in the target vehicle. If at least one piece of target component information is detected to meet the second regeneration interruption condition, the particle catcher of the target vehicle can be controlled to interrupt regeneration even if the current regeneration residual time still does not meet the first regeneration interruption condition, so that whether the regeneration process of the particle catcher is continuously and automatically judged based on various information or parameters, the judgment standard is diversified, the accuracy of the regeneration interruption of the particle catcher is improved, and the regeneration effect, the safety of a user and the service life of parts are further ensured.
On the basis of the technical scheme, the target operation parameters comprise: at least one of tank level, particle trap temperature, vehicle speed, engine temperature, exhaust flow resistance pressure, and turbocharger temperature; the second regeneration interrupt condition includes at least one of: the fuel tank liquid level is lower than a preset low fuel liquid level, the temperature of the particle catcher is lower than a regeneration expected temperature, the continuous time period of the whole vehicle speed lower than the regeneration expected vehicle speed reaches a preset interruption time period, the engine temperature is higher than the highest working temperature of the engine, the exhaust flow resistance pressure is higher than a preset pressure threshold value, and the temperature of the turbocharger is higher than the highest working temperature of the supercharger.
Among them, to meet the regeneration requirement, i.e., when a sufficiently high exhaust gas temperature needs to be generated, the engine generally increases the fuel consumption. Therefore, when the tank level is below the preset low oil level, regeneration needs to be interrupted. The temperature of the particle trap is lower than the desired regeneration temperature, which is understood to mean that the regeneration needs to be interrupted when the current temperature of the particle trap does not reach the desired temperature for regeneration of the particle trap, i.e. there is no regeneration demand. After the regeneration is interrupted, if the continuous time length of the whole vehicle speed higher than the regeneration expected vehicle speed reaches the preset regeneration time length, the regeneration interruption is released or the regeneration is restarted. The maximum operating temperature of the engine may be calibrated to 105 ℃. When the turbocharger temperature is higher than the maximum operating temperature of the supercharger, it is necessary to immediately interrupt regeneration in order to avoid damaging the turbocharger.
Specifically, if the oil tank liquid level is detected to be lower than a preset low oil level, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the temperature of the particle trap is detected to be lower than the regeneration expected temperature, the particle trap of the target vehicle is controlled to interrupt active regeneration; and/or if the continuous time length of the detected whole vehicle speed lower than the regeneration expected vehicle speed reaches the preset interruption time length, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the detected engine temperature is higher than the highest working temperature of the engine, the particle trap of the target vehicle is controlled to interrupt active regeneration; and/or if the exhaust flow resistance pressure is detected to be greater than a preset pressure threshold value, controlling the particle catcher of the target vehicle to interrupt active regeneration; and/or if the turbocharger temperature is detected to be higher than the highest working temperature of the supercharger, controlling the particle trap of the target vehicle to interrupt active regeneration.
For example, in the case where no request for regenerating the lambda value is made, it can also be understood that the particle trap has no regeneration requirement and regeneration needs to be interrupted. Where lambda value may refer to an air-fuel ratio value.
Based on the technical scheme, the target component states comprise: at least one of an engine state, an oxygen sensor state, a throttle state, an engine temperature sensor state, a particulate trap temperature sensor state, a crankshaft position sensor state, and a camshaft position sensor state; the second regeneration interrupt condition includes at least one of: the engine state is a knocking state or a stalling state, the oxygen sensor state is a triggered protection mechanism, the throttle valve state is an unregulated opening, the engine temperature sensor state is a fault reporting state, the particle catcher temperature sensor state is a fault reporting state, the crankshaft position sensor state is a fault reporting state, and the camshaft position sensor state is a fault reporting state.
The knocking state may refer to a state in which the engine is after knocking occurs. The stalling state may refer to a state in which rotation is stopped. The triggered protection mechanism may refer to the oxygen sensor and its component protection being activated. The throttle valve state is the opening degree which cannot be adjusted, and can be understood as that the throttle valve is wrongly reported, damaged or not normally operated, so that the vehicle is in a limp home mode and is limp home. The particle trap temperature sensor may include, but is not limited to, a particle trap upstream temperature sensor and a particle trap downstream temperature sensor.
Specifically, if the engine state is detected to be a knocking state or a stalling state, the particle trap of the target vehicle is controlled to interrupt active regeneration; and/or if the oxygen sensor state is detected to be the triggered protection mechanism, controlling the particle catcher of the target vehicle to interrupt active regeneration; and/or if the throttle valve state is detected to be the opening degree incapable of being adjusted, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the state of the engine temperature sensor is detected to be the error reporting state, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the state of the temperature sensor of the particle catcher is detected to be the error reporting state, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the state of the crank position sensor is detected to be the error reporting state, the particle catcher of the target vehicle is controlled to interrupt active regeneration; and/or if the state of the camshaft position sensor is detected to be the error state, the particle catcher of the target vehicle is controlled to interrupt active regeneration.
Example two
Fig. 2 is a flowchart of a method for interrupting regeneration of a particle catcher according to a second embodiment of the present invention, and the present embodiment describes in detail a process for determining a remaining time period of current regeneration based on the foregoing embodiment. Wherein the explanation of the same or corresponding terms as those of the above embodiments is not repeated herein. As shown in fig. 2, the method includes:
S210, acquiring an engine model, current ignition efficiency, current air-fuel ratio and current engine power corresponding to a target vehicle in the regeneration process of the particle trap.
S220, determining a current correction factor based on the engine model, the current ignition efficiency and the current air-fuel ratio.
Illustratively, S220 may include: determining a target two-dimensional chart from a preset two-dimensional chart set based on the engine model; the two-dimensional chart comprises a pre-calibrated corresponding relation between correction factors and ignition efficiency and air-fuel ratio; the current correction factor is determined from the target two-dimensional map based on the current ignition efficiency and the current air-fuel ratio.
Wherein the abscissa in the two-dimensional map may be the ignition efficiency or the air-fuel ratio, respectively. For example, a correction factor can be accurately determined from a two-dimensional map based on an ignition efficiency (abscissa) and an air-fuel ratio (ordinate). The preset two-dimensional chart set may refer to a set of a plurality of two-dimensional charts set in advance. The two-dimensional chart corresponds to the engine model one by one. The target two-dimensional map may refer to a two-dimensional map corresponding to an engine model in the target vehicle.
S230, determining the total engine power based on the current engine power and a plurality of historical engine powers in a preset historical time.
Wherein, a plurality of history moments exist in the preset history duration. For example, the historical time period may be a time period prior to the current time. There is a corresponding historical engine power for each historical moment. The total engine power may refer to the total power of a plurality of engine powers accumulated.
Specifically, the current engine power and a plurality of historical engine powers in a preset historical time period are added to determine the total engine power corresponding to the target vehicle.
S240, determining the current regeneration residual duration based on the engine model, the current correction factor and the total engine power.
Specifically, the current correction factor and the total engine power are multiplied to determine the corrected total engine power. And determining the corresponding relation between the total power of each engine corresponding to the target vehicle and the regeneration residual duration based on the engine model, and determining the current regeneration residual duration required by the regeneration of the target vehicle from the corresponding relation based on the determined corrected total power of the engine.
Illustratively, S240 may include: determining a target one-dimensional chart from a preset one-dimensional chart set based on the engine model; the one-dimensional chart comprises a pre-calibrated corresponding relation between the corrected power and the countdown time length; determining the corrected total engine power based on the current correction factor and the total engine power; and determining the current regeneration residual duration from the target one-dimensional chart based on the corrected total engine power.
Wherein the abscissa or ordinate in the one-dimensional graph may be a pre-calibrated corrected power. For example, a countdown period can be accurately determined from a one-dimensional graph based on a pre-calibrated corrected power (abscissa or ordinate). The preset one-dimensional chart set may refer to a set of a plurality of one-dimensional charts set in advance. The one-dimensional chart corresponds to the engine model one by one. The target one-dimensional map may refer to a one-dimensional map corresponding to an engine model in the target vehicle.
And S250, if the current regeneration residual duration is detected to meet the first regeneration interruption condition, controlling the particle catcher of the target vehicle to interrupt regeneration.
According to the technical scheme, the total engine power is determined based on the current engine power and a plurality of historical engine powers in a preset historical time; the current regeneration residual duration is determined based on the engine model, the current correction factor and the total engine power, so that the more accurate current regeneration residual duration can be determined based on the sum of the engine powers in a period of time, the current regeneration residual duration which is larger in phase difference with the target vehicle and is determined based on the current engine collected when single fluctuation is larger is avoided, the accuracy of the regeneration interruption of the particle catcher is further improved, the damage of the regeneration process to each part in the target vehicle is reduced, the service life of the parts in the target vehicle is guaranteed while the regeneration effect is guaranteed, and the safety of a user in the target vehicle is further improved.
On the basis of the above technical solution, fig. 3 shows an exemplary diagram of a current regeneration remaining duration determination process. Referring to fig. 3, a current correction factor is determined from the target two-dimensional map based on the current ignition efficiency and the current air-fuel ratio; determining a total engine power based on the current engine power and a plurality of historical engine powers within a preset historical time period; multiplying the current correction factor by the total power of the engine to determine the corrected total power of the engine; and determining the current regeneration residual duration from the target one-dimensional chart based on the corrected total engine power.
The following is an embodiment of a particulate trap regeneration interrupt device provided by an embodiment of the present invention, which belongs to the same inventive concept as the particulate trap regeneration interrupt method of the above embodiments, and reference may be made to the above embodiment of the particulate trap regeneration interrupt method for details that are not described in detail in the embodiment of the particulate trap regeneration interrupt device.
Example III
Fig. 4 is a schematic structural diagram of a regeneration interrupt device for a particle catcher according to a third embodiment of the present invention. As shown in fig. 4, the apparatus includes: a vehicle parameter acquisition module 410, a current correction factor determination module 420, a current regeneration remaining duration determination module 430, and a first interrupt regeneration control module 440.
The vehicle parameter obtaining module 410 is configured to obtain an engine model, a current ignition efficiency, a current air-fuel ratio and a current engine power corresponding to a target vehicle during a regeneration process of the particulate trap; a current correction factor determination module 420 for determining a current correction factor based on the engine model, the current firing efficiency, and the current air-fuel ratio; a current regeneration remaining duration determination module 430 configured to determine a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power; the first regeneration interruption control module 440 is configured to control the particulate trap of the target vehicle to interrupt the regeneration if the current remaining regeneration duration is detected to satisfy the first regeneration interruption condition.
According to the technical scheme, in the regeneration process of the particle catcher, the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle are obtained; determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio; determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power; if the current regeneration residual duration is detected to meet the first regeneration interruption condition, the particle catcher of the target vehicle is controlled to interrupt the regeneration, so that whether the regeneration is interrupted or not is automatically judged in the regeneration process of the particle catcher, the artificial participation is not needed, the accuracy of the regeneration interruption of the particle catcher is improved, the damage of the regeneration process to each part in the target vehicle is reduced, the service life of the parts in the target vehicle is ensured while the regeneration effect is ensured, and the safety of a user in the target vehicle is further improved.
Optionally, the current correction factor determining module 420 is specifically configured to: determining a target two-dimensional chart from a preset two-dimensional chart set based on the engine model; the two-dimensional chart comprises a pre-calibrated corresponding relation between correction factors and ignition efficiency and air-fuel ratio; the current correction factor is determined from the target two-dimensional map based on the current ignition efficiency and the current air-fuel ratio.
Optionally, the current regeneration remaining duration determination module 430 may include:
the engine total power determination submodule is used for determining the engine total power based on the current engine power and a plurality of historical engine powers in a preset historical time period;
the current regeneration remaining time length determining submodule is used for determining the current regeneration remaining time length based on the engine model, the current correction factor and the total engine power.
Optionally, the current regeneration remaining duration determining submodule is specifically configured to: determining a target one-dimensional chart from a preset one-dimensional chart set based on the engine model; the one-dimensional chart comprises a pre-calibrated corresponding relation between the corrected power and the countdown time length; determining the corrected total engine power based on the current correction factor and the total engine power; and determining the current regeneration residual duration from the target one-dimensional chart based on the corrected total engine power.
Optionally, the apparatus further comprises:
the target component information acquisition module is used for acquiring target component information corresponding to a target component in a target vehicle if the current regeneration residual duration is detected not to meet the first regeneration interruption condition, wherein the target component information comprises a target operation parameter and/or a target component state;
and the second interrupt regeneration control module is used for controlling the particle catcher of the target vehicle to interrupt regeneration if the at least one piece of target component information is detected to meet the second regeneration interrupt condition.
Optionally, the target operating parameters include: at least one of tank level, particle trap temperature, vehicle speed, engine temperature, exhaust flow resistance pressure, and turbocharger temperature; the second regeneration interrupt condition includes at least one of: the fuel tank liquid level is lower than a preset low fuel liquid level, the temperature of the particle catcher is lower than a regeneration expected temperature, the continuous time period of the whole vehicle speed lower than the regeneration expected vehicle speed reaches a preset interruption time period, the engine temperature is higher than the highest working temperature of the engine, the exhaust flow resistance pressure is higher than a preset pressure threshold value, and the temperature of the turbocharger is higher than the highest working temperature of the supercharger.
Optionally, the target component state includes: at least one of an engine state, an oxygen sensor state, a throttle state, an engine temperature sensor state, a particulate trap temperature sensor state, a crankshaft position sensor state, and a camshaft position sensor state; the second regeneration interrupt condition includes at least one of: the engine state is a knocking state or a stalling state, the oxygen sensor state is a triggered protection mechanism, the throttle valve state is an unregulated opening, the engine temperature sensor state is a fault reporting state, the particle catcher temperature sensor state is a fault reporting state, the crankshaft position sensor state is a fault reporting state, and the camshaft position sensor state is a fault reporting state.
The particle catcher regeneration interruption device provided by the embodiment of the invention can execute the particle catcher regeneration interruption method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the particle catcher regeneration interruption method.
It should be noted that, in the above embodiment of the regeneration interrupt of the particle trap, each unit and module included are only divided according to the functional logic, but not limited to the above division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Example IV
Fig. 5 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 5, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the particle trap regeneration interrupt method.
In some embodiments, the particle trap regeneration-interruption method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the particle trap regeneration interruption method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the particle trap regeneration interruption method in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method of interrupting regeneration of a particulate trap, comprising:
in the regeneration process of the particle catcher, the corresponding engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power of the target vehicle are obtained;
determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio;
determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power;
And if the current regeneration residual duration is detected to meet a first regeneration interruption condition, controlling a particle catcher of the target vehicle to interrupt regeneration.
2. The method of claim 1, wherein the determining a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio comprises:
determining a target two-dimensional chart from a preset two-dimensional chart set based on the engine model; the two-dimensional chart comprises a pre-calibrated corresponding relation between correction factors and ignition efficiency and air-fuel ratio;
a current correction factor is determined from the target two-dimensional map based on the current ignition efficiency and the current air-fuel ratio.
3. The method of claim 1, wherein the determining a current regeneration remaining duration based on the engine model, the current correction factor, and the current engine power comprises:
determining total engine power based on the current engine power and a plurality of historical engine powers within a preset historical time period;
and determining a current regeneration residual duration based on the engine model, the current correction factor and the total engine power.
4. The method of claim 3, wherein the determining a current regeneration remaining duration based on the engine model, the current correction factor, and the total engine power comprises:
determining a target one-dimensional chart from a preset one-dimensional chart set based on the engine model; the one-dimensional chart comprises a pre-calibrated corresponding relation between the corrected power and the countdown time length;
determining the corrected total engine power based on the current correction factor and the total engine power;
and determining the current regeneration residual duration from the target one-dimensional graph based on the corrected total engine power.
5. The method according to claim 1, wherein the method further comprises:
if the current regeneration residual duration is detected not to meet the first regeneration interruption condition, acquiring target component information corresponding to a target component in a target vehicle, wherein the target component information comprises target operation parameters and/or target component states;
and if at least one piece of target component information is detected to meet a second regeneration interruption condition, controlling a particle trap of the target vehicle to interrupt regeneration.
6. The method of claim 5, wherein the target operating parameters comprise: at least one of tank level, particle trap temperature, vehicle speed, engine temperature, exhaust flow resistance pressure, and turbocharger temperature;
The second regeneration interruption condition includes at least one of: the oil tank liquid level is lower than a preset low oil liquid level, the particle catcher temperature is lower than a regeneration expected temperature, the continuous time period that the vehicle speed is lower than the regeneration expected vehicle speed reaches a preset interruption time period, the engine temperature is higher than the highest working temperature of the engine, the exhaust flow resistance pressure is higher than a preset pressure threshold value, and the temperature of the turbocharger is higher than the highest working temperature of the supercharger.
7. The method of claim 5, wherein the target component state comprises: at least one of an engine state, an oxygen sensor state, a throttle state, an engine temperature sensor state, a particulate trap temperature sensor state, a crankshaft position sensor state, and a camshaft position sensor state;
the second regeneration interruption condition includes at least one of: the engine state is a knocking state or a stalling state, the oxygen sensor state is a triggered protection mechanism, the throttle valve state is an opening degree incapable of being adjusted, the engine temperature sensor state is a fault reporting state, the particle catcher temperature sensor state is a fault reporting state, the crankshaft position sensor state is a fault reporting state, and the camshaft position sensor state is a fault reporting state.
8. A particulate trap regeneration interruption device, comprising:
the vehicle parameter acquisition module is used for acquiring the engine model, the current ignition efficiency, the current air-fuel ratio and the current engine power corresponding to the target vehicle in the regeneration process of the particle catcher;
a current correction factor determination module configured to determine a current correction factor based on the engine model, the current ignition efficiency, and the current air-fuel ratio;
the current regeneration residual time length determining module is used for determining the current regeneration residual time length based on the engine model, the current correction factor and the current engine power;
and the first interrupt regeneration control module is used for controlling the particle catcher of the target vehicle to interrupt regeneration if the current regeneration residual duration is detected to meet a first regeneration interrupt condition.
9. An electronic device, the electronic device comprising:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the particle trap regeneration interruption method of any one of claims 1-7.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the particle trap regeneration interruption method of any one of claims 1-7.
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| CN202311472462.9A CN117248988A (en) | 2023-11-07 | 2023-11-07 | Particle catcher regeneration interruption method, device, electronic equipment and storage medium |
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