CN110295982A - A kind of dpf regeneration control method, device, storage medium and computer equipment - Google Patents

A kind of dpf regeneration control method, device, storage medium and computer equipment Download PDF

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Publication number
CN110295982A
CN110295982A CN201910592154.7A CN201910592154A CN110295982A CN 110295982 A CN110295982 A CN 110295982A CN 201910592154 A CN201910592154 A CN 201910592154A CN 110295982 A CN110295982 A CN 110295982A
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dpf
pressure difference
carrying capacity
carbon carrying
threshold value
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CN110295982B (en
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杨春艳
董光雷
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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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
    • 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 discloses a kind of dpf regeneration control method, device, storage medium and computer equipments, pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF of the first moment acquisition can be obtained, wherein, second moment is later than first moment；Determine first moment to the pressure difference growth rate between second moment according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF；It when the pressure difference growth rate is greater than default growth rate, determines that model determines DPF carbon carrying capacity according to preset carbon carrying capacity, dpf regeneration is carried out according to the determining DPF carbon carrying capacity.The present invention determines the DPF carbon carrying capacity that model determines by preset carbon carrying capacity, judge whether DPF needs to carry out the technological means of dpf regeneration, it overcomes the prior art and excessively carries out the technical issues of dpf regeneration leads to the service life of shortening DPF, and then reached the technical effect for extending the service life of DPF.

Description

A kind of dpf regeneration control method, device, storage medium and computer equipment
Technical field
The present invention relates to vehicle exhaust control field more particularly to a kind of dpf regeneration control methods, device, storage medium And computer equipment.
Background technique
On June 22nd, 2018, China have issued " heavy-duty diesel vehicle pollutant emission limit and measurement method (China the 6th Stage) " national standard (standard No. GB17691-2018).The national standard will come into effect on July 1st, 2019.I State is higher and higher to the pollutant emission requirement of the various vehicles including heavy-duty diesel vehicle, this is conducive to China's natural environment Continuous optimization.
The prior art often passes through particle trap (DPF, Diesel Particulate Filter) and carries out to Vehicular exhaust Purification.DPF can capture the particulate matter in tail gas, such as carbon particle, to realize tail gas clean-up.Over time, DPF The particulate matter of capture is more and more, cause DPF front and back pressure difference be more than initiative regeneration pressure difference limit value, vehicle will lead at this time Initiative regeneration is crossed to come so that burning particulate matter becomes ashes, to reduce the quantity of particulate matter and the front and back pressure difference of DPF.
But present inventor studies discovery in the implementation of the present invention: the front and back pressure difference of DPF often can due to Grain object blocks the reasons such as the channel DPF and quickly increases, and carries out initiative regeneration in a short time so as to cause vehicle.The application hair Although bright people is the study found that the front and back pressure difference of DPF is quickly increased to the pressure difference limit value of initiative regeneration, in DPF, particulate matter is simultaneously It is not very much, it is not necessary to carry out initiative regeneration.
As it can be seen that the prior art can make vehicle carry out initiative regeneration in the case where being not necessary to initiative regeneration, and it is excessive Initiative regeneration can shorten the service life of DPF.
Certainly, in addition to heavy-duty diesel vehicle, there is also same problems for other diesel vehicles.In addition to diesel vehicle, the machine of other fuel Motor-car is also likely to be present same problem.
Summary of the invention
In view of the above problems, the present invention provides a kind of one for overcoming the above problem or at least being partially solved the above problem Kind dpf regeneration control method, device, storage medium and computer equipment, technical solution are as follows:
A kind of dpf regeneration control method, comprising:
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, Wherein, second moment is later than first moment；
Determine first moment to described the according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between two moment；
When the pressure difference growth rate is greater than default growth rate, determine that model determines that DPF carbon carries according to preset carbon carrying capacity Amount carries out dpf regeneration according to the determining DPF carbon carrying capacity.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
Determine the corresponding front and back the 3rd DPF pressure difference of the DPF carbon carrying capacity；
By pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, determined whether to carry out DPF again according to comparison result It is raw.
Optionally, described by pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, be according to comparison result determination No carry out dpf regeneration, comprising:
By pressure difference before and after the 3rd DPF and the first preset pressure threshold value comparison, if it is greater than the first preset pressure threshold value, Then carry out DPF initiative regeneration；
And/or
By pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison, if it is greater than the second preset pressure threshold value, It then exports and carries out the regenerated reminder message of DPF service, wherein the second preset pressure threshold value is greater than first preset pressure Threshold value.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
By the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
Optionally, by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determine whether to carry out according to comparison result Dpf regeneration, comprising:
By the DPF carbon carrying capacity and the first default carbon carrying capacity threshold value comparison, if it is greater than the described first default carbon carrying capacity threshold Value, then carry out DPF initiative regeneration；
And/or
By the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if it is greater than the described second default carbon carrying capacity threshold Value then exports and carries out the regenerated reminder message of DPF service, wherein it is pre- that the second default carbon carrying capacity threshold value is greater than described first If carbon carrying capacity threshold value.
A kind of dpf regeneration control device, comprising: pressure difference obtaining unit, pressure difference growth rate determination unit and DPF before and after DPF Regeneration unit,
Pressure difference obtaining unit before and after the DPF, for obtaining before and after the first DPF that the first moment acquired pressure difference and the Pressure difference before and after 2nd DPF of two moment acquisition, wherein second moment is later than first moment；
The pressure difference growth rate determination unit, for according to pressure before and after pressure difference before and after the first DPF and the 2nd DPF Difference determines first moment to the pressure difference growth rate between second moment；
The dpf regeneration unit is used for when the pressure difference growth rate is greater than default growth rate, according to preset carbon carrying capacity It determines that model determines DPF carbon carrying capacity, dpf regeneration is carried out according to the determining DPF carbon carrying capacity.
Optionally, the dpf regeneration unit is specifically used for when the pressure difference growth rate is greater than default growth rate, according to pre- If carbon carrying capacity determine that model determines DPF carbon carrying capacity, determine pressure difference before and after corresponding 3rd DPF of the DPF carbon carrying capacity；It will be described Pressure difference and preset pressure threshold value comparison before and after 3rd DPF determine whether to carry out dpf regeneration according to comparison result.
Optionally, the dpf regeneration unit is by pressure difference before and after the 3rd DPF and preset pressure threshold value comparison, according to than Relatively result determines whether that carrying out dpf regeneration is specifically configured to: by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, according to Comparison result determines whether to carry out dpf regeneration.
A kind of storage medium is stored with computer executable instructions in the storage medium, and the computer is executable to be referred to When order is loaded and executed by processor, dpf regeneration control method as described in any one of the above embodiments is realized.
A kind of computer equipment, including processor, memory and be stored on the memory and can be in the processor The program of upper operation, the processor at least perform the steps of when executing program
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, Wherein, second moment is later than first moment；
Determine first moment to described the according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between two moment；
When the pressure difference growth rate is greater than default growth rate, determine that model determines that DPF carbon carries according to preset carbon carrying capacity Amount carries out dpf regeneration according to the determining DPF carbon carrying capacity.
By above-mentioned technical proposal, a kind of dpf regeneration control method, device, storage medium and calculating provided by the invention Machine equipment can obtain the pressure difference before and after the first DPF of the first moment acquisition and press before and after the 2nd DPF of the second moment acquisition Difference, wherein second moment is later than first moment；Before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference determines first moment to the pressure difference growth rate between second moment；It is greater than default increase in the pressure difference growth rate It when long rate, determines that model determines DPF carbon carrying capacity according to preset carbon carrying capacity, DPF is carried out again according to the determining DPF carbon carrying capacity It is raw.The present invention determines the DPF carbon carrying capacity that model determines by preset carbon carrying capacity, judges whether DPF needs to carry out dpf regeneration Technological means overcomes the prior art and excessively carries out the technical issues of dpf regeneration leads to the service life of shortening DPF, Jin Erda The technical effect for extending the service life of DPF is arrived.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows a kind of flow diagram of dpf regeneration control method provided in an embodiment of the present invention；
Fig. 2 shows a kind of streams that dpf regeneration mode is carried out according to determining DPF carbon carrying capacity provided in an embodiment of the present invention Journey schematic diagram；
Fig. 3 shows a kind of structural schematic diagram of dpf regeneration control device provided in an embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.
As shown in Figure 1, a kind of dpf regeneration control method provided in an embodiment of the present invention, may include:
S100, pressure difference is obtained before and after the first DPF that the first moment acquire and before and after the 2nd DPF that the second moment acquired Pressure difference, wherein second moment is later than first moment；
Specifically, pressure difference is the difference of pressure and pressure after DPF before DPF before and after DPF.It can be acquired by pressure sensor Pressure difference before and after the DPF of any moment.May exist time interval between first moment and the second moment, which can be Fixed.According to fixed time interval, the embodiment of the present invention can periodically acquire pressure difference before and after DPF, the first moment and Second moment can be adjacent or non-conterminous two acquisition moment.For example, when a cycle is 15 minutes, the first moment 15 divide 13 seconds when can be the 16 of the same day, and 30 divide 13 seconds when the second moment can be the 16 of the same day.It is understood that technology people Member or user can according to need the time interval determined between the first moment and the second moment, also can according to need determination and adopt At the time of collecting the front and back DPF pressure difference, the embodiment of the present invention is not further herein to be limited.
S200, determine first moment to institute according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF State the pressure difference growth rate between the second moment；
Specifically, the difference that the embodiment of the present invention can subtract the front and back the first DPF pressure difference according to pressure difference before and after the 2nd DPF is removed It was determined as the first moment to the pressure difference growth rate between second moment with the value of pressure difference before and after the first DPF.For example, first Pressure difference is 800Pa (pa) before and after DPF, and pressure difference is 900Pa (pa) before and after the 2nd DPF, then the first moment to second moment it Between pressure difference growth rate be 12.5%.Certainly, the embodiment of the present invention is also possible to subtract first according to pressure difference before and after the 2nd DPF The difference of pressure difference was determined as the first moment to the pressure between second moment divided by the value of pressure difference before and after the 2nd DPF before and after DPF Poor growth rate.For example, pressure difference is 900Pa (pa) before and after the first DPF, pressure difference is 1000Pa (pa) before and after the 2nd DPF, then first when Carving to the pressure difference growth rate between second moment is 10%.
S300, when the pressure difference growth rate is greater than default growth rate, determine that model determines DPF according to preset carbon carrying capacity Carbon carrying capacity carries out dpf regeneration according to the determining DPF carbon carrying capacity.
Specifically, default growth rate can be judge pressure difference growth rate whether be more than normal range (NR) warning value.Work as pressure difference When growth rate is greater than default growth rate, pressure difference mutation before and after DPF can be determined.Before and after DPF pressure difference mutation be usually by it is abnormal because Caused by element, such as: the fine and close object that the carbon particle layer in DPF collapses and/or soot particulate matter sinters into causes to block up to the channel of DPF Plug etc..When pressure difference growth rate is greater than default growth rate, before and after DPF pressure difference may in a short time rapid expansion to pressure difference threshold It is worth and triggers dpf regeneration.However on actually DPF the cumulant (i.e. DPF carbon carrying capacity) of particulate matter and not up to carry out dpf regeneration Cumulant, therefore, if determining at this time according to pressure difference before and after DPF, it is unreasonable for carrying out dpf regeneration.The embodiment of the present invention in order to The above-mentioned technological deficiency for determining according to pressure difference before and after DPF and carrying out dpf regeneration is solved, is greater than default increase using when pressure difference growth rate When rate, determine that model determines DPF carbon carrying capacity using preset carbon carrying capacity, and do not use pressure difference before and after DPF, also avoid by Dpf regeneration caused by abnormal factors, therefore solve the technical issues of service life that excessive dpf regeneration shortens DPF.
Wherein, preset carbon carrying capacity determines that model can be many kinds of parameters (such as engine charge by vehicle where DPF Amount and oil consumption etc.) and DPF carbon carrying capacity between relationship recorded and generated.It does not include the front and back DPF in above-mentioned many kinds of parameters Pressure difference.For example, can be recorded to DPF carbon carrying capacity according to vehicle motor air inflow and oil consumption and generate preset carbon load It measures and determines model.DPF carbon carrying capacity can be the weight of particulate matter in DPF (such as: soot particulate matter) and the ratio of DPF volume, use In the specific gravity for measuring particulate matter in DPF.Due to above-mentioned preset carbon carrying capacity determine model be generated according to vehicle parameter, so It can not the front and back DPF caused by by abnormal factors pressure difference mutation disturbance.Therefore the present invention is determined using above-mentioned preset carbon carrying capacity Model can accurately determine DPF carbon carrying capacity, and then carry out dpf regeneration according to DPF carbon carrying capacity.
Dpf regeneration may include DPF initiative regeneration and DPF service regeneration, and wherein it is logical to can be engine for DPF initiative regeneration High temperature oxidation reaction is crossed, the soot particulate matter in DPF is removed by way of burning.DPF service regeneration can be by artificial Mode remove the soot particulate matter in DPF, for example, the shop vehicle 4S to the soot particulate matter in DPF use high pressure gas or liquid The mode of flushing is removed and/or is removed to the soot particulate matter in DPF using special heating equipment.
A kind of dpf regeneration control method provided in an embodiment of the present invention can obtain the first DPF in the acquisition of the first moment Front and back pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition, wherein second moment is later than first moment； According to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF determine first moment to second moment it Between pressure difference growth rate；When the pressure difference growth rate is greater than default growth rate, determine that model determines according to preset carbon carrying capacity DPF carbon carrying capacity carries out dpf regeneration according to the determining DPF carbon carrying capacity.The embodiment of the present invention is determined by preset carbon carrying capacity Model determines DPF carbon carrying capacity, judges whether DPF needs to carry out the technological means of dpf regeneration, overcomes the prior art and excessively carries out Dpf regeneration leads to the technical issues of shortening the service life of DPF, and then has reached the technical effect for extending the service life of DPF.
Optionally, carrying out the process of dpf regeneration according to determining DPF carbon carrying capacity in step S300 may include following two Mode:
Mode 1: as shown in Fig. 2, provided in an embodiment of the present invention a kind of according to determining DPF carbon carrying capacity progress dpf regeneration Mode may include:
S310, pressure difference before and after corresponding 3rd DPF of the DPF carbon carrying capacity is determined；
Specifically, the embodiment of the present invention can be according to preset DPF carbon carrying capacity after the current DPF carbon carrying capacity of determination Table corresponding with pressure difference before and after DPF, determines pressure difference before and after the 3rd DPF corresponding with current DPF carbon carrying capacity.It is understood that When testing DPF, can to before and after the DPF under different DPF carbon carrying capacity pressure difference recorded and generated preset Carbon carrying capacity table corresponding with pressure difference before and after DPF.In DPF actual use, according to DPF carbon carrying capacity, before preset carbon carrying capacity and DPF Pressure difference corresponds in table afterwards, determines pressure difference before and after DPF corresponding with the DPF carbon carrying capacity.For example, when DPF carbon carrying capacity is 3.2g/L When (grams per liter), pressure difference can be 500Pa (pa) before and after corresponding DPF；It is corresponding when DPF carbon carrying capacity is 4.8g/L (grams per liter) DPF before and after pressure difference can be 850Pa (pa).According to preset DPF carbon carrying capacity table corresponding with pressure difference before and after DPF, DPF carbon is determined Pressure difference is only the normal front and back pressure difference of DPF before and after corresponding 3rd DPF of carrying capacity, judges whether to reach according to pressure difference before and after the 3rd DPF It is just more scientific and reasonable to the condition for needing to carry out dpf regeneration.
S320, by pressure difference before and after the 3rd DPF and preset pressure threshold value comparison, determine whether to carry out according to comparison result Dpf regeneration.
Specifically, preset pressure threshold value can be and judge before and after the 3rd DPF whether pressure difference reaches and need to carry out dpf regeneration Condition value.Preset pressure threshold value can be to be obtained after testing DPF, and it is logical to a certain extent to can reflect DPF Influence degree of the particulate matter to DPF performance in road.It, can be reasonable by pressure difference before and after the 3rd DPF and preset pressure threshold value comparison Ground determines the need for carrying out dpf regeneration.Pressure difference and the comparison procedure of preset pressure threshold value may include: before and after 3rd DPF
By pressure difference before and after the 3rd DPF and the first preset pressure threshold value comparison, if it is greater than the first preset pressure threshold value, Then carry out DPF initiative regeneration；For example, when the first preset pressure threshold value is 500Pa (pa), if pressure difference is before and after the 3rd DPF 720Pa (pa), then carry out DPF initiative regeneration.It is to carry out DPF actively that pressure difference, which is greater than the first preset pressure threshold value, before and after 3rd DPF Regenerated condition illustrates DPF channel blockage, needs to pass through height when pressure difference is greater than the first preset pressure threshold value before and after the 3rd DPF Warm oxidation reaction removes the soot particulate matter in DPF by way of burning, to solve or alleviate the channel blockage in DPF Situation, restore all or part of performance of DPF.
It should be noted that since DPF initiative regeneration is vehicle actively to the soot particulate matter in DPF by way of burning Removal, therefore the soot particulate matter in DPF may be sintered into dense body and be sticked in the channel DPF, with progress DPF initiative regeneration Number increase, the dense body being sticked in the channel DPF is also increasing, finally also result in DPF channel blockage.
In the case, the embodiment of the present invention can also by pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison, If it is greater than the second preset pressure threshold value, then exports and carry out the regenerated reminder message of DPF service, wherein described second is pre- If threshold pressure differential is greater than the first preset pressure threshold value.For example, when the second preset pressure threshold value is 700Pa (pa), if the Pressure difference is 720Pa (pa) before and after three DPF, then exports and carry out the regenerated reminder message of DPF service.It is understood that multiple The carbon carbon granules object accumulation carried out in the fine and close object and/or DPF that generate after DPF initiative regeneration may all make leading in DPF Road blocking illustrates that Severe blockage occurs in the channel in DPF when pressure difference is greater than the second preset pressure threshold value before and after the 3rd DPF Situation and be difficult to efficiently solve by DPF initiative regeneration, it is therefore desirable to output carries out DPF and services regenerated reminder message, The user of the DPF is reminded to timely use one kind including high pressure gas, liquid wash and the special heating equipment of use Or various ways are removed the particulate matter in DPF.
It should be noted that since the second preset pressure threshold value is greater than the first preset pressure threshold value, in the present invention one In optional embodiment, less than the second preset pressure while pressure difference can be greater than the first preset pressure threshold value before and after the 3rd DPF Threshold value, in the case, the embodiment of the present invention can only carry out DPF initiative regeneration.In an optional embodiment of the invention, when When pressure difference is greater than the second preset pressure threshold value before and after 3rd DPF, pressure difference is greater than the first preset pressure threshold before and after also illustrating the 3rd DPF Value, in the case, the embodiment of the present invention can export progress DPF while carrying out DPF initiative regeneration and service regenerated mention Awake message.DPF initiative regeneration is carried out simultaneously and output carries out DPF and services regenerated reminder message, is conducive to the channel DPF occurring After the case where Severe blockage, DPF partial properties can be restored by DPF initiative regeneration, vehicle driving extremely can be with where supporting DPF It carries out DPF and services regenerated place.
Mode 2: another mode for carrying out dpf regeneration according to determining DPF carbon carrying capacity provided in an embodiment of the present invention can To include: to be determined whether the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison to carry out dpf regeneration according to comparison result.
Specifically, default carbon carrying capacity threshold value can be and judge whether DPF carbon carrying capacity reaches the condition for needing to carry out dpf regeneration Value.Default carbon carrying capacity threshold value can be to be obtained after testing DPF, and DPF carbon carrying capacity can reflect in the channel DPF Influence degree of the grain object to DPF performance.Whether by DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, can directly determine needs Carry out dpf regeneration.DPF carbon carrying capacity may include: with default carbon carrying capacity threshold value comparison process
By the DPF carbon carrying capacity and the first default carbon carrying capacity threshold value comparison, if it is greater than the described first default carbon carrying capacity threshold Value, then carry out DPF initiative regeneration；For example, when the first default carbon carrying capacity threshold value is 5g/L (grams per liter), if DPF carbon carrying capacity is 5.6g/L (grams per liter), then carry out DPF initiative regeneration.It is to carry out DPF actively that DPF carbon carrying capacity, which is greater than the first default carbon carrying capacity threshold value, Regenerated condition illustrates the channel DPF because soot particulate matter is excessively made when DPF carbon carrying capacity is greater than the first default carbon carrying capacity threshold value At blocking, need to react by high-temperature oxydation, the soot particulate matter in DPF removed by way of burning, to solve or Alleviate the situation of the channel blockage in DPF, restores all or part of performance of DPF.
It is sticked in the channel DPF for sintering dense body into after vehicle actively repeatedly carries out DPF initiative regeneration, leads to DPF The problem of channel blockage.The embodiment of the present invention can also by the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if Greater than the described second default carbon carrying capacity threshold value, then exports and carry out the regenerated reminder message of DPF service, wherein described second is default Carbon carrying capacity threshold value is greater than the described first default carbon carrying capacity threshold value.For example, when the second default carbon carrying capacity threshold value is 8g/L (grams per liter) When, if DPF carbon carrying capacity is 8.2g/L (grams per liter), exports and carry out the regenerated reminder message of DPF service.It is understood that The carbon carbon granules object accumulation repeatedly carried out in the fine and close object and/or DPF that generate after DPF initiative regeneration may all make in DPF Channel blockage, when DPF carbon carrying capacity be greater than the second default carbon carrying capacity threshold value when, illustrate that Severe blockage occurs in the channel in DPF Situation and be difficult to efficiently solve by DPF initiative regeneration, it is therefore desirable to output carries out DPF and services regenerated reminder message, The user of the DPF is reminded to timely use one kind including high pressure gas, liquid wash and the special heating equipment of use Or various ways are removed the particulate matter in DPF.
It should be noted that since the second default carbon carrying capacity threshold value is greater than the first default carbon carrying capacity threshold value, in the present invention one In optional embodiment, less than the second default carbon carrying capacity threshold while DPF carbon carrying capacity can be greater than the first default carbon carrying capacity threshold value Value, in the case, the embodiment of the present invention can only carry out DPF initiative regeneration.In an optional embodiment of the invention, when When DPF carbon carrying capacity is greater than the second default carbon carrying capacity threshold value, also illustrate that DPF carbon carrying capacity is greater than the first default carbon carrying capacity threshold value, herein In the case of, the embodiment of the present invention can export while carrying out DPF initiative regeneration carries out the regenerated reminder message of DPF service. DPF initiative regeneration is carried out simultaneously and output carries out DPF and services regenerated reminder message, is conducive to seriously block up there is the channel DPF After the case where plug, DPF partial properties can be restored by DPF initiative regeneration, vehicle driving is to can carry out where supporting DPF DPF services regenerated place.
Corresponding with above method embodiment, the embodiment of the present invention also provides a kind of dpf regeneration control device, and structure is as schemed It may include: pressure difference obtaining unit 100, pressure difference growth rate determination unit 200 and dpf regeneration unit 300 before and after DPF shown in 3,
Pressure difference obtaining unit 100 before and after the DPF, for obtains before and after the first DPF of the first moment acquisition pressure difference with The pressure difference before and after the 2nd DPF of the second moment acquisition, wherein second moment is later than first moment；
Specifically, pressure difference is the difference of pressure and pressure after DPF before DPF before and after DPF.It can be acquired by pressure sensor Pressure difference before and after the DPF of any moment.May exist time interval between first moment and the second moment, which can be Fixed.According to fixed time interval, the embodiment of the present invention can periodically acquire pressure difference before and after DPF, the first moment and Second moment can be adjacent or non-conterminous two acquisition moment.For example, when a cycle is 15 minutes, the first moment 15 divide 13 seconds when can be the 16 of the same day, and 30 divide 13 seconds when the second moment can be the 16 of the same day.It is understood that technology people Member or user can according to need the time interval determined between the first moment and the second moment, also can according to need determination and adopt At the time of collecting the front and back DPF pressure difference, the embodiment of the present invention is not further herein to be limited.
The pressure difference growth rate determination unit 200, before according to pressure difference before and after the first DPF and the 2nd DPF Pressure difference determines first moment to the pressure difference growth rate between second moment afterwards；
Specifically, the difference that the embodiment of the present invention can subtract the front and back the first DPF pressure difference according to pressure difference before and after the 2nd DPF is removed It was determined as the first moment to the pressure difference growth rate between second moment with the value of pressure difference before and after the first DPF.For example, first Pressure difference is 800Pa (pa) before and after DPF, and pressure difference is 900Pa (pa) before and after the 2nd DPF, then the first moment to second moment it Between pressure difference growth rate be 12.5%.Certainly, the embodiment of the present invention is also possible to subtract first according to pressure difference before and after the 2nd DPF The difference of pressure difference was determined as the first moment to the pressure between second moment divided by the value of pressure difference before and after the 2nd DPF before and after DPF Poor growth rate.For example, pressure difference is 900Pa (pa) before and after the first DPF, pressure difference is 1000Pa (pa) before and after the 2nd DPF, then first when Carving to the pressure difference growth rate between second moment is 10%.
The dpf regeneration unit 300 is used for when the pressure difference growth rate is greater than default growth rate, according to preset carbon Carrying capacity determines that model determines DPF carbon carrying capacity, carries out dpf regeneration according to the determining DPF carbon carrying capacity.
Specifically, default growth rate can be judge pressure difference growth rate whether be more than normal range (NR) warning value.Work as pressure difference When growth rate is greater than default growth rate, pressure difference mutation before and after DPF can be determined.Before and after DPF pressure difference mutation be usually by it is abnormal because Caused by element, such as: the fine and close object that the carbon particle layer in DPF collapses and/or soot particulate matter sinters into causes to block up to the channel of DPF Plug etc..When pressure difference growth rate is greater than default growth rate, before and after DPF pressure difference may in a short time rapid expansion to pressure difference threshold It is worth and triggers dpf regeneration.However on actually DPF the cumulant (i.e. DPF carbon carrying capacity) of particulate matter and not up to carry out dpf regeneration Cumulant, therefore, if determining at this time according to pressure difference before and after DPF, it is unreasonable for carrying out dpf regeneration.The embodiment of the present invention in order to The above-mentioned technological deficiency for determining according to pressure difference before and after DPF and carrying out dpf regeneration is solved, is greater than default increase using when pressure difference growth rate When rate, determine that model determines DPF carbon carrying capacity using preset carbon carrying capacity, and do not use pressure difference before and after DPF, also avoid by Dpf regeneration caused by abnormal factors, therefore solve the technical issues of service life that excessive dpf regeneration shortens DPF.
Wherein, preset carbon carrying capacity determines that model can be many kinds of parameters (such as engine charge by vehicle where DPF Amount and oil consumption etc.) and DPF carbon carrying capacity between relationship recorded and generated.It does not include the front and back DPF in above-mentioned many kinds of parameters Pressure difference.For example, can be recorded to DPF carbon carrying capacity according to vehicle motor air inflow and oil consumption and generate preset carbon load It measures and determines model.DPF carbon carrying capacity can be the weight of particulate matter in DPF (such as: soot particulate matter) and the ratio of DPF volume, use In the specific gravity for measuring particulate matter in DPF.Due to above-mentioned preset carbon carrying capacity determine model be generated according to vehicle parameter, so It can not the front and back DPF caused by by abnormal factors pressure difference mutation disturbance.Therefore the present invention is determined using above-mentioned preset carbon carrying capacity Model can accurately determine DPF carbon carrying capacity, and then carry out dpf regeneration according to DPF carbon carrying capacity.
Dpf regeneration may include DPF initiative regeneration and DPF service regeneration, and wherein it is logical to can be engine for DPF initiative regeneration High temperature oxidation reaction is crossed, the soot particulate matter in DPF is removed by way of burning.DPF service regeneration can be by artificial Mode remove the soot particulate matter in DPF, for example, the shop vehicle 4S to the soot particulate matter in DPF use high pressure gas or liquid The mode of flushing is removed and/or is removed to the soot particulate matter in DPF using special heating equipment.
A kind of dpf regeneration control device provided in an embodiment of the present invention can obtain the first DPF in the acquisition of the first moment Front and back pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition, wherein second moment is later than first moment； According to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF determine first moment to second moment it Between pressure difference growth rate；When the pressure difference growth rate is greater than default growth rate, determine that model determines according to preset carbon carrying capacity DPF carbon carrying capacity carries out dpf regeneration according to the determining DPF carbon carrying capacity.The embodiment of the present invention is determined by preset carbon carrying capacity Model determines DPF carbon carrying capacity, judges whether DPF needs to carry out the technological means of dpf regeneration, overcomes the prior art and excessively carries out Dpf regeneration leads to the technical issues of shortening the service life of DPF, and then has reached the technical effect for extending the service life of DPF.
Optionally, another dpf regeneration control device provided in an embodiment of the present invention, the dpf regeneration unit 300 can be with Specifically for determining that model determines that DPF carbon is carried according to preset carbon carrying capacity when the pressure difference growth rate is greater than default growth rate Amount determines pressure difference before and after corresponding 3rd DPF of the DPF carbon carrying capacity；By pressure difference and preset pressure threshold value before and after the 3rd DPF Compare, is determined whether to carry out dpf regeneration according to comparison result.
Specifically, the embodiment of the present invention can be according to preset DPF carbon carrying capacity after the current DPF carbon carrying capacity of determination Table corresponding with pressure difference before and after DPF, determines pressure difference before and after the 3rd DPF corresponding with current DPF carbon carrying capacity.It is understood that When testing DPF, can to before and after the DPF under different DPF carbon carrying capacity pressure difference recorded and generated preset Carbon carrying capacity table corresponding with pressure difference before and after DPF.In DPF actual use, according to DPF carbon carrying capacity, before preset carbon carrying capacity and DPF Pressure difference corresponds in table afterwards, determines pressure difference before and after DPF corresponding with the DPF carbon carrying capacity.For example, when DPF carbon carrying capacity is 3.2g/L When (grams per liter), pressure difference can be 500Pa (pa) before and after corresponding DPF；It is corresponding when DPF carbon carrying capacity is 4.8g/L (grams per liter) DPF before and after pressure difference can be 850Pa (pa).According to preset DPF carbon carrying capacity table corresponding with pressure difference before and after DPF, DPF carbon is determined Pressure difference is only the normal front and back pressure difference of DPF before and after corresponding 3rd DPF of carrying capacity, judges whether to reach according to pressure difference before and after the 3rd DPF It is just more scientific and reasonable to the condition for needing to carry out dpf regeneration.
Specifically, preset pressure threshold value can be and judge before and after the 3rd DPF whether pressure difference reaches and need to carry out dpf regeneration Condition value.Preset pressure threshold value can be to be obtained after testing DPF, and it is logical to a certain extent to can reflect DPF Influence degree of the particulate matter to DPF performance in road.It, can be reasonable by pressure difference before and after the 3rd DPF and preset pressure threshold value comparison Ground determines the need for carrying out dpf regeneration.
On this basis, optionally, dpf regeneration unit 300 can be specifically used for pressure difference before and after the 3rd DPF and first is pre- If threshold pressure differential compares, if it is greater than the first preset pressure threshold value, then DPF initiative regeneration is carried out；For example, it is default to work as first When threshold pressure differential is 500Pa (pa), if pressure difference is 720Pa (pa) before and after the 3rd DPF, DPF initiative regeneration is carried out.3rd DPF It is to carry out the condition of DPF initiative regeneration that front and back pressure difference, which is greater than the first preset pressure threshold value, and pressure difference is greater than first before and after the 3rd DPF When preset pressure threshold value, illustrate DPF channel blockage, need to react by high-temperature oxydation, the soot particulate matter in DPF is passed through into burning Mode remove, to solve or alleviate the situation of the channel blockage in DPF, restore all or part of performance of DPF.It needs to infuse Meaning, since DPF initiative regeneration is that vehicle is actively removed the soot particulate matter in DPF by way of burning, in DPF Soot particulate matter may be sintered into dense body and be sticked in the channel DPF, with increasing for the number for carrying out DPF initiative regeneration, The dense body being sticked in the channel DPF is also increasing, and finally also results in DPF channel blockage.In the case, dpf regeneration list Member 300 can be by pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison, if it is greater than the second preset pressure threshold Value then exports and carries out the regenerated reminder message of DPF service, wherein it is default that the second preset pressure threshold value is greater than described first Threshold pressure differential.For example, when the second preset pressure threshold value is 700Pa (pa), if pressure difference is 720Pa (pa) before and after the 3rd DPF, Output carries out DPF and services regenerated reminder message.It is understood that in the cause for repeatedly carrying out generating after DPF initiative regeneration Carbon carbon granules object accumulation in close object and/or DPF may all make the channel blockage in DPF, and pressure difference is greater than before and after the 3rd DPF When the second preset pressure threshold value, illustrate that the channel in DPF is in the presence of Severe blockage and being difficult to have by DPF initiative regeneration Effect ground solves, it is therefore desirable to output carries out DPF and services regenerated reminder message, remind the user of the DPF timely use including One or more modes including high pressure gas, liquid wash and the special heating equipment of use carry out the particulate matter in DPF Removal.
It should be noted that since the second preset pressure threshold value is greater than the first preset pressure threshold value, in the present invention one In optional embodiment, less than the second preset pressure while pressure difference can be greater than the first preset pressure threshold value before and after the 3rd DPF Threshold value, in the case, the embodiment of the present invention can only carry out DPF initiative regeneration.In an optional embodiment of the invention, when When pressure difference is greater than the second preset pressure threshold value before and after 3rd DPF, pressure difference is greater than the first preset pressure threshold before and after also illustrating the 3rd DPF Value, in the case, the embodiment of the present invention can export progress DPF while carrying out DPF initiative regeneration and service regenerated mention Awake message.DPF initiative regeneration is carried out simultaneously and output carries out DPF and services regenerated reminder message, is conducive to the channel DPF occurring After the case where Severe blockage, DPF partial properties can be restored by DPF initiative regeneration, vehicle driving extremely can be with where supporting DPF It carries out DPF and services regenerated place.
Optionally, another dpf regeneration control device provided in an embodiment of the present invention, the dpf regeneration unit 300 is by institute The 3rd DPF front and back pressure difference and preset pressure threshold value comparison are stated, determines whether that carrying out dpf regeneration is specifically arranged according to comparison result Are as follows: by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
Specifically, default carbon carrying capacity threshold value can be and judge whether DPF carbon carrying capacity reaches the condition for needing to carry out dpf regeneration Value.Default carbon carrying capacity threshold value can be to be obtained after testing DPF, and DPF carbon carrying capacity can reflect in the channel DPF Influence degree of the grain object to DPF performance.Whether by DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, can directly determine needs Carry out dpf regeneration.
On this basis, optionally, dpf regeneration unit 300 can be specifically used for presetting the DPF carbon carrying capacity with first Carbon carrying capacity threshold value comparison then carries out DPF initiative regeneration if it is greater than the described first default carbon carrying capacity threshold value；For example, it is pre- to work as first If carbon carrying capacity threshold value is 5g/L (grams per liter), if DPF carbon carrying capacity is 5.6g/L (grams per liter), DPF initiative regeneration is carried out.DPF It is to carry out the condition of DPF initiative regeneration that carbon carrying capacity, which is greater than the first default carbon carrying capacity threshold value, when DPF carbon carrying capacity is greater than the first default carbon When carrying capacity threshold value, illustrates the channel DPF because soot particulate matter excessively causes blocking, need to react by high-temperature oxydation, it will be in DPF Soot particulate matter removed by way of burning, to solve or alleviate the situation of the channel blockage in DPF, it is whole to restore DPF Or partial performance.
It is sticked in the channel DPF for sintering dense body into after vehicle actively repeatedly carries out DPF initiative regeneration, leads to DPF The problem of channel blockage.Dpf regeneration unit 300 can by the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if Greater than the described second default carbon carrying capacity threshold value, then exports and carry out the regenerated reminder message of DPF service, wherein described second is default Carbon carrying capacity threshold value is greater than the described first default carbon carrying capacity threshold value.For example, when the second default carbon carrying capacity threshold value is 8g/L (grams per liter) When, if DPF carbon carrying capacity is 8.2g/L (grams per liter), exports and carry out the regenerated reminder message of DPF service.It is understood that The carbon carbon granules object accumulation repeatedly carried out in the fine and close object and/or DPF that generate after DPF initiative regeneration may all make in DPF Channel blockage, when DPF carbon carrying capacity be greater than the second default carbon carrying capacity threshold value when, illustrate that Severe blockage occurs in the channel in DPF Situation and be difficult to efficiently solve by DPF initiative regeneration, it is therefore desirable to output carries out DPF and services regenerated reminder message, The user of the DPF is reminded to timely use one kind including high pressure gas, liquid wash and the special heating equipment of use Or various ways are removed the particulate matter in DPF.
It should be noted that since the second default carbon carrying capacity threshold value is greater than the first default carbon carrying capacity threshold value, in the present invention one In optional embodiment, less than the second default carbon carrying capacity threshold while DPF carbon carrying capacity can be greater than the first default carbon carrying capacity threshold value Value, in the case, the embodiment of the present invention can only carry out DPF initiative regeneration.In an optional embodiment of the invention, when When DPF carbon carrying capacity is greater than the second default carbon carrying capacity threshold value, also illustrate that DPF carbon carrying capacity is greater than the first default carbon carrying capacity threshold value, herein In the case of, the embodiment of the present invention can export while carrying out DPF initiative regeneration carries out the regenerated reminder message of DPF service. DPF initiative regeneration is carried out simultaneously and output carries out DPF and services regenerated reminder message, is conducive to seriously block up there is the channel DPF After the case where plug, DPF partial properties can be restored by DPF initiative regeneration, vehicle driving is to can carry out where supporting DPF DPF services regenerated place.
A kind of storage medium provided in an embodiment of the present invention is stored with computer executable instructions in the storage medium, When the computer executable instructions are loaded and executed by processor, dpf regeneration controlling party as described in any one of the above embodiments is realized Method.
A kind of computer equipment provided in an embodiment of the present invention, including processor, memory and it is stored in the memory Program that is upper and can running on the processor, the processor at least perform the steps of when executing program
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, Wherein, second moment is later than first moment；
Determine first moment to described the according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between two moment；
When the pressure difference growth rate is greater than default growth rate, determine that model determines that DPF carbon carries according to preset carbon carrying capacity Amount carries out dpf regeneration according to the determining DPF carbon carrying capacity.
The dpf regeneration control device includes processor and memory, pressure difference obtaining unit 100, pressure difference before and after above-mentioned DPF Growth rate determination unit 200 and dpf regeneration unit 300 etc. store in memory as program unit, are executed by processor Above procedure unit stored in memory realizes corresponding function.
Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set one Or more, it by preset carbon carrying capacity determines that model determines DPF carbon carrying capacity by adjusting kernel parameter, judges whether DPF needs Carry out dpf regeneration.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/ Or the forms such as Nonvolatile memory, if read-only memory (ROM) or flash memory (flash RAM), memory include that at least one is deposited Store up chip.
The embodiment of the invention provides a kind of storage mediums, are stored thereon with program, real when which is executed by processor The existing dpf regeneration control method.
The embodiment of the invention provides a kind of processor, the processor is for running program, wherein described program operation Dpf regeneration control method described in Shi Zhihang.
The embodiment of the invention provides a kind of equipment, equipment include processor, memory and storage on a memory and can The program run on a processor, processor perform the steps of when executing program
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, Wherein, second moment is later than first moment；
Determine first moment to described the according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between two moment；
When the pressure difference growth rate is greater than default growth rate, determine that model determines that DPF carbon carries according to preset carbon carrying capacity Amount carries out dpf regeneration according to the determining DPF carbon carrying capacity.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
Determine the corresponding front and back the 3rd DPF pressure difference of the DPF carbon carrying capacity；
By pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, determined whether to carry out DPF again according to comparison result It is raw.
Optionally, described by pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, be according to comparison result determination No carry out dpf regeneration, comprising:
By pressure difference before and after the 3rd DPF and the first preset pressure threshold value comparison, if it is greater than the first preset pressure threshold value, Then carry out DPF initiative regeneration；
And/or
By pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison, if it is greater than the second preset pressure threshold value, It then exports and carries out the regenerated reminder message of DPF service, wherein the second preset pressure threshold value is greater than first preset pressure Threshold value.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
By the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
Optionally, by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determine whether to carry out according to comparison result Dpf regeneration, comprising:
By the DPF carbon carrying capacity and the first default carbon carrying capacity threshold value comparison, if it is greater than the described first default carbon carrying capacity threshold Value, then carry out DPF initiative regeneration；
And/or
By the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if it is greater than the described second default carbon carrying capacity threshold Value then exports and carries out the regenerated reminder message of DPF service, wherein it is pre- that the second default carbon carrying capacity threshold value is greater than described first If carbon carrying capacity threshold value.
Equipment herein can be server, PC, PAD, mobile phone etc..
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just The program of beginningization there are as below methods step:
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, Wherein, second moment is later than first moment；
Determine first moment to described the according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between two moment；
When the pressure difference growth rate is greater than default growth rate, determine that model determines that DPF carbon carries according to preset carbon carrying capacity Amount carries out dpf regeneration according to the determining DPF carbon carrying capacity.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
Determine the corresponding front and back the 3rd DPF pressure difference of the DPF carbon carrying capacity；
By pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, determined whether to carry out DPF again according to comparison result It is raw.
Optionally, described by pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, be according to comparison result determination No carry out dpf regeneration, comprising:
By pressure difference before and after the 3rd DPF and the first preset pressure threshold value comparison, if it is greater than the first preset pressure threshold value, Then carry out DPF initiative regeneration；
And/or
By pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison, if it is greater than the second preset pressure threshold value, It then exports and carries out the regenerated reminder message of DPF service, wherein the second preset pressure threshold value is greater than first preset pressure Threshold value.
It is optionally, described that dpf regeneration is carried out according to the determining DPF carbon carrying capacity, comprising:
By the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
Optionally, by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determine whether to carry out according to comparison result Dpf regeneration, comprising:
By the DPF carbon carrying capacity and the first default carbon carrying capacity threshold value comparison, if it is greater than the described first default carbon carrying capacity threshold Value, then carry out DPF initiative regeneration；
And/or
By the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if it is greater than the described second default carbon carrying capacity threshold Value then exports and carries out the regenerated reminder message of DPF service, wherein it is pre- that the second default carbon carrying capacity threshold value is greater than described first If carbon carrying capacity threshold value.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/ Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want Element.In the absence of more restrictions, the element limited by sentence " including one ... ", it is not excluded that including element Process, method, there is also other identical elements in commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product. Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art, Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement, Improve etc., it should be included within the scope of the claims of this application.

Claims (10)

1. a kind of dpf regeneration control method characterized by comprising
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, In, second moment is later than first moment；
When determining first moment to described second according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between quarter；
When the pressure difference growth rate is greater than default growth rate, determine that model determines DPF carbon carrying capacity, root according to preset carbon carrying capacity Dpf regeneration is carried out according to the determining DPF carbon carrying capacity.
2. the method according to claim 1, wherein described carry out DPF again according to the determining DPF carbon carrying capacity It is raw, comprising:
Determine the corresponding front and back the 3rd DPF pressure difference of the DPF carbon carrying capacity；
By pressure difference and preset pressure threshold value comparison before and after the 3rd DPF, determined whether to carry out dpf regeneration according to comparison result.
3. according to the method described in claim 2, it is characterized in that, described by pressure difference and preset pressure before and after the 3rd DPF Threshold value comparison determines whether to carry out dpf regeneration according to comparison result, comprising:
By pressure difference before and after the 3rd DPF and the first preset pressure threshold value comparison, if it is greater than the first preset pressure threshold value, then into Row DPF initiative regeneration；
And/or
It is if it is greater than the second preset pressure threshold value, then defeated by pressure difference before and after the 3rd DPF and the second preset pressure threshold value comparison DPF is carried out out and services regenerated reminder message, wherein the second preset pressure threshold value is greater than the first preset pressure threshold Value.
4. the method according to claim 1, wherein described carry out DPF again according to the determining DPF carbon carrying capacity It is raw, comprising:
By the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
5. according to the method described in claim 4, it is characterized in that, by the DPF carbon carrying capacity and default carbon carrying capacity threshold value comparison, Determined whether to carry out dpf regeneration according to comparison result, comprising:
By the DPF carbon carrying capacity and the first default carbon carrying capacity threshold value comparison, if it is greater than the described first default carbon carrying capacity threshold value, then Carry out DPF initiative regeneration；
And/or
By the DPF carbon carrying capacity and the second default carbon carrying capacity threshold value comparison, if it is greater than the described second default carbon carrying capacity threshold value, then Output carries out DPF and services regenerated reminder message, wherein the second default carbon carrying capacity threshold value is greater than the described first default carbon and carries Measure threshold value.
6. a kind of dpf regeneration control device characterized by comprising pressure difference obtaining unit, pressure difference growth rate determine before and after DPF Unit and dpf regeneration unit,
Pressure difference obtaining unit before and after the DPF, for obtaining in pressure difference before and after the first DPF that the first moment acquired and at second Carve the front and back the 2nd DPF pressure difference of acquisition, wherein second moment is later than first moment；
The pressure difference growth rate determination unit, for true according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF First moment is determined to the pressure difference growth rate between second moment；
The dpf regeneration unit, for being determined according to preset carbon carrying capacity when the pressure difference growth rate is greater than default growth rate Model determines DPF carbon carrying capacity, carries out dpf regeneration according to the determining DPF carbon carrying capacity.
7. device according to claim 6, which is characterized in that the dpf regeneration unit is specifically used for increasing in the pressure difference When long rate is greater than default growth rate, determines that model determines DPF carbon carrying capacity according to preset carbon carrying capacity, determine the DPF carbon carrying capacity Pressure difference before and after corresponding 3rd DPF；It is true according to comparison result by pressure difference and preset pressure threshold value comparison before and after the 3rd DPF It is fixed whether to carry out dpf regeneration.
8. device according to claim 6, which is characterized in that the dpf regeneration unit is by pressure difference before and after the 3rd DPF With preset pressure threshold value comparison, determine whether that carrying out dpf regeneration is specifically configured to according to comparison result: by the DPF carbon carrying capacity With default carbon carrying capacity threshold value comparison, determined whether to carry out dpf regeneration according to comparison result.
9. a kind of storage medium, which is characterized in that be stored with computer executable instructions, the computer in the storage medium When executable instruction is loaded and executed by processor, as above dpf regeneration controlling party described in any one of claim 1 to 5 is realized Method.
10. a kind of computer equipment, which is characterized in that including processor, memory and be stored on the memory and can be The program run on the processor, the processor at least perform the steps of when executing program
Pressure difference and the pressure difference before and after the 2nd DPF of the second moment acquisition before and after the first DPF that the first moment acquired are obtained, In, second moment is later than first moment；
When determining first moment to described second according to pressure difference before and after pressure difference before and after the first DPF and the 2nd DPF Pressure difference growth rate between quarter；
When the pressure difference growth rate is greater than default growth rate, determine that model determines DPF carbon carrying capacity, root according to preset carbon carrying capacity Dpf regeneration is carried out according to the determining DPF carbon carrying capacity.
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CN111852630A (en) * 2020-08-24 2020-10-30 安徽江淮汽车集团股份有限公司 Carbon loading capacity detection method, equipment, storage medium and device
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