CN112127979B - Regeneration method and system of particulate matter catcher, engine and motor vehicle - Google Patents
Regeneration method and system of particulate matter catcher, engine and motor vehicle Download PDFInfo
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- CN112127979B CN112127979B CN202010838795.9A CN202010838795A CN112127979B CN 112127979 B CN112127979 B CN 112127979B CN 202010838795 A CN202010838795 A CN 202010838795A CN 112127979 B CN112127979 B CN 112127979B
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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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- 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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/10—Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1606—Particle filter loading or soot amount
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to the field of engines, in particular to a regeneration method and a regeneration system of a particulate matter catcher, an engine and a motor vehicle. The regeneration method of the particulate matter trap according to the present invention includes: determining the carbon capacity to be regenerated according to the current oil consumption, judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold, if not, not starting regeneration, and if so, determining the total regeneration time and starting regeneration; starting a regeneration countdown after the regeneration is started, wherein the starting time of the regeneration countdown is equal to the total regeneration time; determining a correction factor according to the end time of the regeneration countdown and the total regeneration time, and calculating according to the correction factor to obtain the corrected oil consumption; and judging whether the corrected oil consumption is less than or equal to a correction threshold value, if so, finishing regeneration, and if not, continuing the regeneration. The correction oil consumption is determined through the correction factor, whether the regeneration needs to be continued or not is judged according to the correction threshold, and the frequent regeneration of the particulate matter catcher can be avoided, so that the service life of the particulate matter catcher is prolonged.
Description
Technical Field
The application relates to the technical field of engines, in particular to a regeneration method and a regeneration system of a particulate matter catcher, an engine and a motor vehicle.
Background
A Particulate trap (DPF), which is a ceramic Filter installed in the exhaust system of a Diesel engine, can trap Particulate emissions before they enter the atmosphere, as shown in fig. 1. A small portion of engine Exhaust Gas enters the cylinder through an Exhaust Gas Recirculation (EGR) system and air through a Throttle Valve (TVA) for combustion, and then a portion of the Exhaust Gas passes through an HC nozzle, a Diesel Oxidation Catalyst (DOC), a DPF, and a Selective Catalytic Reduction (SCR) for Exhaust. As more and more particulates are collected in the DPF, it slowly results in increased exhaust backpressure, which affects engine power. And diesel oil is sprayed in the aftertreatment, oxygen reacts with the diesel oil in the DOC to improve the temperature of the DPF inlet, and carbon particles in the DPF are burnt by utilizing high temperature, so that the process is called DPF regeneration.
Currently there are two ways to trigger regeneration: the regeneration is triggered based on a model, and the regeneration is triggered based on a pressure difference. In order to prevent the model and the pressure difference from failing to regenerate, the increased oil consumption triggers regeneration to be used as protection. When the oil consumption is increased to trigger the DPF regeneration mode, the regeneration is successful, the oil consumption is directly cleared, if the regeneration is not completed, the power is off, and the carbon loading capacity obtained by judging based on the oil consumption is still larger than the limit value when the power is on next time, so that frequent regeneration can be caused, and the service life of the DPF is shortened.
In view of the foregoing, it would be desirable to provide a method, system, engine, and motor vehicle for regenerating a particulate trap that can avoid frequent regeneration of the particulate trap and extend the useful life of the particulate trap.
Disclosure of Invention
In order to solve the problems, the application provides a regeneration method and a regeneration system of a particulate matter catcher, an engine and a motor vehicle.
In one aspect, the present application provides a method of regenerating a particulate trap, comprising:
determining the carbon capacity to be regenerated according to the current oil consumption, judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold, if not, not starting regeneration, and if so, determining the total regeneration time and starting regeneration;
starting a regeneration countdown after the regeneration is started, the start time of the regeneration countdown being equal to the total regeneration time;
determining a correction factor according to the end time of regeneration countdown and the total regeneration time, and calculating to obtain the corrected oil consumption according to the correction factor;
and judging whether the corrected oil consumption is less than or equal to a correction threshold value, if so, finishing regeneration, and if not, continuing the regeneration.
Further, the method for regenerating a particulate matter trap as described above, wherein determining a correction factor based on the regeneration countdown ending time and the total regeneration time, comprises:
counting down the total regeneration time, and determining the end time of the regeneration counting down;
the end time of the regeneration countdown is divided by the total regeneration time as a correction factor.
Further, the method for regenerating the particulate trap, wherein the calculating the corrected fuel consumption according to the correction factor, comprises:
and multiplying the correction factor by the oil consumption when the regeneration is triggered to serve as the corrected oil consumption.
Further, the regeneration method of the particulate matter trap as described above, before the determining whether the corrected fuel consumption is equal to or less than the correction threshold, further includes:
and if the vehicle is powered off during regeneration, determining a correction factor again according to the end time of regeneration countdown and the total regeneration time when the vehicle is powered on next time, and calculating to obtain the corrected oil consumption according to the correction factor.
Further, the method for regenerating the particulate matter trap as described above further includes, before determining the carbon load to be regenerated according to the current oil consumption:
accumulating the running oil consumption in real time and determining the total oil consumption;
and determining the current oil consumption according to the total oil consumption and the oil consumption when the last regeneration is successful.
Further, the regeneration method of the particulate matter trap as described above, after determining whether the corrected fuel consumption is equal to or less than a correction threshold value and if so, completing the regeneration, further includes:
and updating the carbon loading and the total oil consumption to be regenerated.
Further, the method for regenerating the particulate matter trap as described above further includes, before determining the carbon load to be regenerated according to the current oil consumption:
calculating the carbon loading of the model according to the model and/or calculating the carbon loading of the differential pressure according to the differential pressure;
and if the carbon loading of the model or the differential pressure carbon loading exceeds the carbon loading threshold, performing regeneration.
In a second aspect, the present application provides a regeneration system for a particulate trap, comprising:
the data processing module is used for determining the carbon capacity to be regenerated according to the current oil consumption, starting regeneration countdown after the regeneration is started, wherein the starting time of the regeneration countdown is equal to the total regeneration time; determining a correction factor according to the end time of regeneration countdown and the total regeneration time, and calculating to obtain the corrected oil consumption according to the correction factor;
and the judgment control module is used for judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold, if not, the regeneration is not started, if so, the total regeneration time is determined and the regeneration is started, whether the corrected oil consumption is less than or equal to the corrected threshold is judged, if so, the regeneration is finished, and if not, the regeneration is continued.
In a third aspect, the present application provides an engine comprising: a supercharger, intercooler, throttle, diesel, exhaust gas recirculation system, diesel oxidation catalyst, selective catalytic reduction system, particulate filter, and particulate trap regeneration system as described above;
the particulate filter is configured to regenerate in accordance with instructions sent by a regeneration system of the particulate trap.
In a fourth aspect, the present application proposes a motor vehicle comprising an engine as described above.
The application has the advantages that: determining the carbon capacity to be regenerated according to the current oil consumption, judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold value, determining the total regeneration time and starting regeneration, determining a correction factor according to the end time of regeneration countdown and the total regeneration time, calculating to obtain corrected oil consumption, and judging whether the regeneration needs to be continued according to the corrected oil consumption and the corrected threshold value, so that the frequent regeneration of the particulate matter catcher can be avoided, and the service life of the particulate matter catcher can be prolonged.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to denote like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic illustration of a basic layout of a prior art engine;
FIG. 2 is a schematic illustration of the steps of a method of regenerating a particulate trap provided herein;
FIG. 3 is a schematic flow chart of a method for regenerating a particulate trap provided herein to determine whether to regenerate;
FIG. 4 is a schematic flow chart illustrating a method for regenerating a particulate trap according to the present disclosure to determine whether regeneration is complete;
FIG. 5 is a schematic illustration of a regeneration system for a particulate trap provided herein.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In a first aspect, according to an embodiment of the present application, there is provided a method for regenerating a particulate matter trap, as shown in fig. 2 and 3, including:
s101, determining the carbon capacity to be regenerated according to the current oil consumption, judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold value, if not, not starting regeneration, and if so, determining the total regeneration time and starting regeneration;
s102, starting regeneration countdown after regeneration is started, wherein the starting time of the regeneration countdown is equal to the total regeneration time;
s103, determining a correction factor according to the end time of the regeneration countdown and the total regeneration time, and calculating according to the correction factor to obtain the corrected oil consumption;
and S104, judging whether the corrected oil consumption is less than or equal to a correction threshold value, if so, finishing regeneration, and if not, continuing the regeneration.
As shown in fig. 4, determining a correction factor based on the regeneration countdown ending time and the total regeneration time includes: counting down the total regeneration time, and determining the end time of the regeneration counting down; the end time of the regeneration countdown divided by the total regeneration time is used as a correction factor.
As shown in fig. 4, the calculation of the corrected oil consumption according to the correction factor includes: the correction factor is used to multiply the fuel consumption at the time of triggering regeneration as the corrected fuel consumption.
Before judging whether the corrected oil consumption is less than or equal to the correction threshold, the method further comprises the following steps: and if the vehicle is powered off during regeneration, determining the correction factor again according to the end time of regeneration countdown and the total regeneration time when the vehicle is powered on next time, and calculating according to the correction factor to obtain the corrected oil consumption. Before determining the carbon loading to be regenerated according to the current oil consumption, the method further comprises the following steps: accumulating the running oil consumption in real time and determining the total oil consumption; and determining the current oil consumption according to the total oil consumption and the oil consumption when the last regeneration is successful.
After judging whether the corrected oil consumption is less than or equal to the correction threshold value and finishing regeneration if the corrected oil consumption is less than or equal to the correction threshold value, the method further comprises the following steps: and updating the carbon loading and the total oil consumption to be regenerated.
Before determining the carbon loading to be regenerated according to the current oil consumption, the method further comprises the following steps: calculating the carbon loading of the model according to the model and/or calculating the carbon loading of the differential pressure according to the differential pressure; and if the carbon loading of the model or the differential pressure carbon loading exceeds the carbon loading threshold, performing regeneration.
The regeneration mode of the existing particulate matter trap is mostly based on model-triggered regeneration and pressure difference-triggered regeneration. When the model and the pressure difference fail, the increased oil consumption triggers regeneration to be used as protection. When increasing the oil consumption and triggering the regeneration of the particulate matter catcher, various corresponding carbon carrying capacities are calculated according to the model, the pressure difference and the oil consumption, and the carbon carrying capacity is increased to judge and trigger the regeneration.
The total regeneration time is the time required for the carbon loading to drop from a limit to 0 during regeneration.
Since the regeneration countdown is updated in real time, the end time of each use of the regeneration countdown and the total regeneration time determine the correction factor, both of which use the current regeneration countdown time divided by the total regeneration time to determine the correction factor. Since the regeneration countdown is stopped when the vehicle is powered off, the end time of the regeneration countdown is the regeneration countdown time stored when the vehicle is powered off. Taking the total regeneration time as 60 minutes as an example, the start time of the regeneration countdown is counted down from 60 minutes, and the time is gradually decreased. If the time at the regeneration countdown is shown to be 29 minutes, it indicates that 29 minutes remain to complete the regeneration. At the moment, if the vehicle is powered off, the time is saved as the end time of the regeneration countdown, and when the vehicle is powered on next time, the end time of the regeneration countdown is used to be divided by the total regeneration time to obtain a correction factor, calculate the corrected fuel consumption and judge whether the regeneration needs to be continued.
The correction threshold may be set to a value of 0 or 0.5, etc.
As shown in fig. 4, the total regeneration time is 60 minutes, and the correction threshold is 0.5, for example. If the vehicle is not powered off in the 60 minutes, when the countdown ending time is 0, namely the total regeneration time of the 60 minutes is up, the correction factor 0/3600 is 0, the correction fuel consumption is 0 multiplied by the current fuel consumption, and the correction fuel consumption is less than the correction threshold value, thereby completing the regeneration. And the current oil consumption used for calculation is the oil consumption obtained by subtracting the oil consumption when the regeneration is judged to be needed from the oil consumption when the regeneration is successful at the last time.
When the vehicle is powered off when the countdown ending time is 3 minutes, that is, when the regeneration can be completed in the remaining 3 minutes, the vehicle is powered off, when the vehicle is powered on again, 180/3600 is 0.05, that is, the correction factor is 0.05. The current fuel consumption is multiplied by the correction factor. If the total oil consumption when regeneration is needed is reduced to the oil consumption when the previous regeneration is successful, the current oil consumption is Y, and whether 0.05Y exceeds the correction threshold value is judged. If 0.05Y is 0.5 or less, the regeneration is not continued and the regeneration is completed. If 0.05Y is greater than 0.5, regeneration continues until the countdown end time equals 0. After the regeneration is completed, the carbon loading and the total oil consumption to be regenerated are updated.
In a second aspect, according to an embodiment of the present application, there is also provided a regeneration system of a particulate matter trap, as shown in fig. 5, including:
the data processing module 101 is configured to determine a carbon loading to be regenerated according to the current oil consumption, start regeneration countdown after regeneration starts, and start time of the regeneration countdown is equal to total regeneration time; determining a correction factor according to the end time of the regeneration countdown and the total regeneration time, and calculating according to the correction factor to obtain the corrected oil consumption;
and the judgment control module 102 is used for judging whether the carbon loading capacity to be regenerated exceeds a carbon loading capacity threshold, if not, not starting regeneration, if so, determining the total regeneration time and starting regeneration, judging whether the corrected oil consumption is less than or equal to the corrected threshold, if so, finishing regeneration, and if not, continuing regeneration.
Carbon loading can be obtained from a look-up table of oil consumption. When regeneration is started, the data processing module gives the total regeneration time to the timer, the starting time of regeneration countdown is equal to the total regeneration time, the timer starts to decrease from the total regeneration time, the counting time (ending time of regeneration countdown) decreased from the timer is divided by the total regeneration time to obtain a correction factor, the correction factor is multiplied to the oil consumption, and the oil consumption is corrected to obtain the corrected oil consumption. The carbon loading obtained according to the current oil consumption can be correspondingly adjusted according to the actual carbon loading (corresponding to the corrected oil consumption) in the particulate matter catcher, so that the frequent regeneration of the particulate matter catcher caused by inaccurate carbon loading estimation judgment based on the oil consumption is avoided.
In a third aspect, according to an embodiment of the present application, there is also provided an engine, including: a regeneration system of a supercharger, an intercooler, a throttle, a diesel engine, an exhaust gas recirculation system, a diesel oxidation catalyst, a selective catalytic reduction system, a particulate filter, and a particulate trap;
the particulate filter is used for regenerating the particulate matter trap according to an instruction sent by a regeneration system of the particulate matter trap.
According to a fourth aspect, according to an embodiment of the present application, there is also provided a motor vehicle including the engine in the embodiment of the present application.
According to the method, the carbon capacity to be regenerated is determined according to the current oil consumption, whether the carbon capacity to be regenerated exceeds a carbon capacity threshold value or not is judged, the total regeneration time is determined, regeneration is started, a correction factor is determined according to the end time of regeneration countdown and the total regeneration time, the corrected oil consumption is calculated, whether regeneration needs to be continued or not is judged according to the corrected oil consumption and the correction threshold value, frequent regeneration of the particulate matter catcher can be avoided, and therefore the service life of the particulate matter catcher is prolonged. By correcting the oil consumption, the loss caused by inaccurate triggering regeneration estimation of carbon loading capacity judgment based on the oil consumption under the actual environment is avoided, the accuracy of carbon loading capacity judgment based on the oil consumption is improved, and the risk of frequent regeneration is reduced.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method of regenerating a particulate trap, comprising:
determining the carbon capacity to be regenerated according to the current oil consumption, judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold, if not, not starting regeneration, and if so, determining the total regeneration time and starting regeneration;
starting a regeneration countdown after the regeneration is started, the start time of the regeneration countdown being equal to the total regeneration time;
determining a correction factor according to the end time of regeneration countdown and the total regeneration time, and calculating to obtain the corrected oil consumption according to the correction factor;
and judging whether the corrected oil consumption is less than or equal to a correction threshold value, if so, finishing regeneration, and if not, continuing the regeneration.
2. The method of regenerating a particulate matter trap according to claim 1, wherein said determining a correction factor based on an end time of a regeneration countdown and a total regeneration time includes:
counting down the total regeneration time, and determining the end time of the regeneration counting down;
the end time of the regeneration countdown is divided by the total regeneration time as a correction factor.
3. The method for regenerating a particulate trap as defined in claim 1, wherein calculating a corrected fuel consumption based on the correction factor comprises:
and multiplying the correction factor by the oil consumption when the regeneration is triggered to serve as the corrected oil consumption.
4. The method for regenerating a particulate matter trap according to claim 1, further comprising, before the determining whether the corrected fuel consumption is equal to or less than a correction threshold:
and if the vehicle is powered off during regeneration, determining a correction factor again according to the end time of regeneration countdown and the total regeneration time when the vehicle is powered on next time, and calculating to obtain the corrected oil consumption according to the correction factor.
5. The method for regenerating a particulate trap as claimed in claim 1, further comprising, before said determining the carbon load to be regenerated from the current oil consumption:
accumulating the running oil consumption in real time and determining the total oil consumption;
and determining the current oil consumption according to the total oil consumption and the oil consumption when the last regeneration is successful.
6. The regeneration method of the particulate matter trap according to claim 5, further comprising, after the determining whether the corrected fuel consumption is equal to or less than a correction threshold and, if so, completing the regeneration:
and updating the carbon loading and the total oil consumption to be regenerated.
7. The method for regenerating a particulate trap as claimed in claim 1, further comprising, before said determining the carbon load to be regenerated from the current oil consumption: and calculating the model carbon load according to the model and/or calculating the differential pressure carbon load according to the differential pressure.
8. A regeneration system for a particulate trap, comprising:
the data processing module is used for determining the carbon capacity to be regenerated according to the current oil consumption, starting regeneration countdown after the regeneration is started, wherein the starting time of the regeneration countdown is equal to the total regeneration time; determining a correction factor according to the end time of regeneration countdown and the total regeneration time, and calculating to obtain the corrected oil consumption according to the correction factor;
and the judgment control module is used for judging whether the carbon capacity to be regenerated exceeds a carbon capacity threshold, if not, the regeneration is not started, if so, the total regeneration time is determined and the regeneration is started, whether the corrected oil consumption is less than or equal to the corrected threshold is judged, if so, the regeneration is finished, and if not, the regeneration is continued.
9. An engine, comprising: a supercharger, intercooler, throttle, diesel, exhaust gas recirculation system, diesel oxidation catalyst, selective catalytic reduction system, particulate filter, and regeneration system of the particulate trap of claim 8;
the particulate filter is configured to regenerate in accordance with instructions sent by a regeneration system of the particulate trap.
10. A motor vehicle comprising the engine of claim 9.
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| CN113217155B (en) * | 2021-04-20 | 2022-04-26 | 潍柴动力股份有限公司 | Sprinkler DPF regeneration method, regeneration system and sprinkler |
| CN114033535B (en) * | 2021-11-24 | 2023-07-25 | 上海新动力汽车科技股份有限公司 | Remote DPF regeneration control method of vehicle engine |
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| JP5404457B2 (en) * | 2010-02-03 | 2014-01-29 | 三菱重工業株式会社 | Engine exhaust gas purification device |
| GB2506660B (en) * | 2012-10-05 | 2019-06-19 | Ford Global Tech Llc | Method of regenerating a filter in an exhaust |
| CN106368777B (en) * | 2016-11-21 | 2019-03-05 | 上海汽车集团股份有限公司 | Vehicle granule capturing device method for controlling reproduction |
| CN106640303B (en) * | 2017-01-25 | 2019-02-15 | 中国第一汽车股份有限公司 | The generation control system of diesel engine particles supplementary set device |
| CN110735697B (en) * | 2019-12-20 | 2020-04-21 | 潍柴动力股份有限公司 | Method and system for controlling DPF regeneration and engine |
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