CN107013292A - DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout - Google Patents
DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout Download PDFInfo
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- CN107013292A CN107013292A CN201710386330.2A CN201710386330A CN107013292A CN 107013292 A CN107013292 A CN 107013292A CN 201710386330 A CN201710386330 A CN 201710386330A CN 107013292 A CN107013292 A CN 107013292A
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- dpf
- blast pipe
- temperature
- catalyst converters
- heat management
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
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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
- F01N2900/1602—Temperature of exhaust gas apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
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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
Landscapes
- 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 present invention discloses a kind of DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout, the system is when needing to carry out the regeneration of carbon carrying capacity, once heated up by heat management in diesel engine machine, ensure that the front-seat temperature of DOC catalyst converters meets blast pipe fuel oil injection Rule of judgment, sprayed simultaneously by blast pipe fuel oil, realize DOC catalyst converter secondary temperature elevations, so as to realize DPF Catalyst Regenerations, reduce the energy consumption that regeneration is produced in diesel engine machine, so as to reduce oil dilution rate, the reliability of diesel engine is improved.
Description
Technical field
The present invention relates to DPF initiative regeneration control fields, more particularly to one kind is based on heat management and blast pipe oil spout in machine
DPF initiative regeneration control systems.
Background technology
Diesel engine is because its dynamic property is strong, stability is good, fuel-economy the features such as, at present, be widely used in traffic fortune
Defeated industry.But, the discharge of its nitrogen oxides has a strong impact on air quality, damages health, is unfavorable for sustainable development.Bavin
Oil machine grain catcher (Diesel Particulate Filter, DPF) is a kind of is arranged in diesel engine emissions system
Ceramic filter, it can Particulate Emission material enter air before be caught, such as precipitin, inertia sedimentation or
Person linearly intercepts, and can effectively purify in exhaust 70%~90% particle, be that purification diesel engine particulate matter is most effective, most straight
One of method connect.Diesel particulate filter is higher to the filter efficiency of soot particulate, can reach 60%~90%.In filtering
In, particulate matter be collected in particulate filter can cause diesel exhaust gas back pressure raise, when exhaust back pressure reach 16kPa~
During 20kPa, diesel engine performance starts to deteriorate, it is therefore necessary to regularly except degranulation, particulate filter is returned to original work
Make state, that is, regenerate.However, for the diesel engine DPF current generally existing diesel engine high energy consumption of Regeneration control, oil dilution rate
Height, the problem of Reliability of Diesel Engine is poor.
The content of the invention
It is an object of the invention to by it is a kind of based on heat management in machine and the DPF initiative regenerations of blast pipe oil spout control be
System, to solve the problem of background section above is mentioned.
For up to this purpose, the present invention uses following technical scheme：
A kind of DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout, it includes DPF catalyst converters again
Raw request switch, intake-air throttle valve, blast pipe fuel injection equipment (FIE), exhaust temperature sensor, differential pressure pickup and post processing are automatically controlled
Unit；The DPF Catalyst Regenerations request switch is used to send regeneration request signal manually；The intake-air throttle valve be arranged on into
Tracheae, for carrying out air inlet restriction temperature treatment；The blast pipe fuel injection equipment (FIE) is arranged on before DPF catalyst converters；It is described
Exhaust temperature sensor includes exhaust temperature sensor, DPF catalyst converter heel row temperature sensing before exhaust temperature sensor, DPF catalyst converters before DOC catalyst converters
Device；The differential pressure pickup is mounted on before and after DPF catalyst converters；The post processing ECU control is according to temperature and pressure difference
Signal drives blast pipe fuel injection equipment (FIE)；When DPF Catalyst Regenerations request switch carries out regeneration function request, diesel engine machine
Interior burning demarcation is exhausted heat management and once heated up, and the front-seat temperature of DOC catalyst converters is reached the row that blast pipe fuel oil is sprayed
Warm threshold value, and then pipe oil spout is exhausted in blast pipe fuel injection equipment (FIE), and pipe secondary temperature elevation is exhausted；When DOC catalyst converters
When front-seat temperature is less than row's temperature threshold value, blast pipe fuel injection equipment (FIE) cut-out fuel oil is injected into blast pipe.
Especially, the differential pressure pickup setting threshold value installed before and after DPF catalyst converters, sentences according to the threshold value
Whether disconnected DPF catalyst converters need regeneration；When DPF catalyst converters need to be regenerated, when the front-seat temperature of DOC catalyst converters is less than thresholding,
Need to carry out heat management in diesel engine machine and delivery temperature is provided, so that DPF catalyst converters can be normally carried out fuel oil jet regeneration.
Especially, exhaust temperature sensor correspondence output DOC catalysis before exhaust temperature sensor, DPF catalyst converters before the DOC catalyst converters
Temperature signal gives post processing ECU before temperature signal, DPF catalyst converters before device, and post processing ECU is according to DOC catalyst converters
Temperature signal determines a need for carrying out heat management demarcation in diesel engine machine before preceding temperature signal, DPF catalyst converters, arranges diesel engine
Temperature reaches blast pipe fuel-injected temperature requirement.
Especially, the post processing ECU when the differential pressure pickup installed before and after DPF catalyst converters specifically for adopting
Collect pressure difference more than threshold value, while when the front-seat temperature of DOC catalyst converters is more than limit value, DPF fuel injection equipment (FIE)s can be by fuel oil
It is ejected into blast pipe；It is more than threshold value when the differential pressure pickup installed before and after DPF catalyst converters collects pressure difference, simultaneously
When the front-seat temperature of DOC catalyst converters is less than limit value, post processing ECU will send heat management request signal to diesel electric-controlled
Unit, Diesel Engine Control unit will carry out heat management in machine and demarcate, and the front-seat temperature of blast pipe DOC catalyst converters is higher than threshold value,
Blast pipe fuel injection equipment (FIE) injects fuel into blast pipe, carries out DPF Catalyst Regeneration temperature treatments.
DPF initiative regenerations control system proposed by the present invention based on heat management in machine and blast pipe oil spout is needing to carry out
When carbon carrying capacity regenerates, once heated up by heat management in diesel engine machine, it is ensured that DOC catalyst converters front row temperature meets blast pipe combustion
Oil spurts Rule of judgment, while being sprayed by blast pipe fuel oil, realizes DOC catalyst converter secondary temperature elevations, so as to realize DPF catalyst converters
Regeneration, reduces the energy consumption that regeneration is produced in diesel engine machine, so as to reduce oil dilution rate, improves the reliable of diesel engine
Property.Particularly advantage of the invention is as follows：First, diesel fuel is injected into the fuel injection mode of blast pipe and realizes DPF catalyst converters
Regeneration function, can so avoid the oil dilution that brings of cylinder of diesel engine internal combustion oil spurts regeneration, it is ensured that diesel engine it is reliable
Operation.2nd, heat management ensures that diesel engine is run under constant rotating speed and load condition in diesel engine machine, and the load of diesel engine becomes
Change small, stable operation, so ensure that diesel exhaust gas temperature keeps constant.So as to carry out secondary liter using blast pipe oil spout
Warm control accuracy is high, and regeneration temperature fluctuation is small, realizes the regeneration of optimum condition.If the 3, catalyst converter delivery temperature is less than before DOC
Certain threshold value, by intake-air throttle valve control, allows catalyst converter delivery temperature before DOC to bring up to a level, is catalyzed DPF
Device can regenerate.4th, when diesel exhaust gas temperature is raised, and DPF Catalyst Regenerations need regeneration, DPF catalyst converters can be stablized
Regeneration.The management of intake-air throttle valve regeneration temperature is unrelated with diesel engine service condition, according to the automatic control of DPF Catalyst Regenerations request
System, it is not necessary to which driver frequently controls throttle signal, reduces the fatigue of driver.
Brief description of the drawings
Fig. 1 is to be provided in an embodiment of the present invention based on heat management in machine and the DPF initiative regenerations of blast pipe oil spout control system
System structural representation；
Fig. 2 is post processing ECU control logic module figure provided in an embodiment of the present invention；
Fig. 3 is rear DPF Catalyst Regenerations control logic schematic diagram provided in an embodiment of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.It is understood that tool described herein
Body embodiment is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of retouching
State, part related to the present invention rather than full content are illustrate only in accompanying drawing, it is unless otherwise defined, used herein all
Technology and scientific terminology are identical with belonging to the implication that the those skilled in the art of the present invention are generally understood that.It is used herein
Term be intended merely to describe specific embodiment, it is not intended that in limitation the present invention.
It refer to shown in Fig. 1, Fig. 1 is the DPF provided in an embodiment of the present invention based on heat management in machine and blast pipe oil spout
Initiative regeneration control system architecture schematic diagram.
High pressure is specifically included based on heat management in machine and the DPF initiative regeneration control systems of blast pipe oil spout in the present embodiment
Rule diesel engine 1, turbocharger 2, the request of DPF Catalyst Regenerations switch 3, intake-air throttle valve 4, blast pipe fuel injection equipment (FIE) altogether
5th, exhaust temperature sensor, differential pressure pickup 9 and post processing ECU 10.Wherein, the DPF Catalyst Regenerations request switch 3
For sending regeneration request signal manually.The intake-air throttle valve 4 is arranged on air inlet pipe, for carrying out air inlet restriction temperature pipe
Reason.The blast pipe fuel injection equipment (FIE) 5 is arranged on before DPF catalyst converters；DPF Catalyst Regeneration modes are based on blast pipe combustion
The method that oil spurts carries out DOC catalyst converter heatings, blast pipe fuel injection equipment (FIE) 5 is arranged in blast pipe, DPF catalyst converters arrangement
In fuel injection equipment (FIE) downstream.The exhaust temperature sensor includes the front-seat temperature of exhaust temperature sensor 6, DPF catalyst converters before DOC catalyst converters and passed
Exhaust temperature sensor before exhaust temperature sensor 6, DPF catalyst converters before exhaust temperature sensor 8 after sensor 7, DPF catalyst converters, the DOC catalyst converters
7 correspondences export temperature signal before DOC catalyst converters, temperature signal gives post processing ECU 10 before DPF catalyst converters, post-process automatically controlled
Unit 10 determines a need for carrying out heat in diesel engine machine according to temperature signal before temperature signal, DPF catalyst converters before DOC catalyst converters
Management demarcation (spray measure after in such as progress air inlet restriction, cylinder), makes diesel engine arrange temperature and reaches blast pipe fuel-injected temperature
It is required that.The differential pressure pickup 9 is mounted on before and after DPF catalyst converters, the differential pressure pickup 9 installed before and after DPF catalyst converters
Threshold value is set with, judges whether DPF catalyst converters need regeneration according to the threshold value；When DPF catalyst converters need to be regenerated
When, it is necessary to which carrying out heat management in diesel engine machine provides delivery temperature, so that DPF is catalyzed when the front-seat temperature of DOC catalyst converters is less than thresholding
Device can be normally carried out fuel oil jet regeneration.
The post processing ECU 10 is controlled according to temperature and pressure difference signal driving blast pipe fuel injection equipment (FIE) 5；When
When DPF Catalyst Regenerations request switch 3 carries out regeneration function request, heat management is exhausted once in burning demarcation in diesel engine machine
Heating, makes the front-seat temperature of DOC catalyst converters reach row's temperature threshold value that blast pipe fuel oil is sprayed, and then blast pipe fuel oil injection dress
Put 5 and pipe oil spout is exhausted, pipe secondary temperature elevation is exhausted；When the front-seat temperature of DOC catalyst converters threshold value warm less than row, blast pipe
The cut-out fuel oil of fuel injection equipment (FIE) 5 is injected into blast pipe.Specifically, the post processing ECU 10 is used for：When pressure difference is passed
Sensor 9 collects pressure difference more than threshold value, while when the front-seat temperature of DOC catalyst converters is more than limit value, DPF fuel injection equipment (FIE) meetings
Inject fuel into blast pipe；When the differential pressure pickup 9 installed before and after DPF catalyst converters collects pressure difference more than thresholding
Value, while when the front-seat temperature of DOC catalyst converters is less than limit value, the post processing carbon carrying capacity control strategy of ECU 10 will start regeneration
Desired signal, sends heat management request signal to diesel engine electric control unit, Diesel Engine Control unit will carry out heat management in machine
Demarcation, makes the front-seat temperature of blast pipe DOC catalyst converters be higher than threshold value, blast pipe fuel injection equipment (FIE) 5 injects fuel into blast pipe,
Carry out DPF Catalyst Regeneration temperature treatments.
As shown in Fig. 2 Fig. 2 is the post processing control logic module figure of ECU 10 provided in an embodiment of the present invention, including
DPF Catalyst Regenerations request module, engine charge throttling control strategy module, blast pipe Injection Control module, DPF system are again
Raw request judges, engine charge throttle control module.DPF catalyst converters differential pressure pickup 9 (is installed i.e. before and after DPF catalyst converters
Differential pressure pickup 9) be connected to post processing ECU 10, by pressure difference signal calculate carbon carrying capacity, so as to determine DPF catalyst converters
Whether need to be regenerated, if desired regenerate, DPF Catalyst Regenerations request switch 3 sends regeneration request signal.DOC catalyst converters
Preceding exhaust temperature sensor 6 is connected to post processing ECU 10, and post processing ECU 10 judges blast pipe by monitoring the signal
Whether fuel injection equipment (FIE) 5 needs oil spout.As shown in figure 3, when post processing ECU 10 sends regeneration requirements signal, simultaneously
When the delivery temperature that DOC catalyst converter front exhaust temperature sensor measurements are obtained is higher than threshold value, post processing ECU 10 is sent
Drive signal carries out fuel oil injection to blast pipe fuel injection equipment (FIE) 5, carries out the closed loop management of DPF Catalyst Regeneration temperature.Together
When, when post processing ECU 10 sends regeneration requirements signal, but DOC catalyst converter front exhaust temperature sensor measurements are obtained
Delivery temperature be less than threshold value when, post processing ECU 10 send request signal to diesel fuel system ECU,
Heat management is demarcated in diesel engine carry out machine, improves the front-seat temperature of DOC catalyst converters, while post-processing ECU 10 sends drive signal
Fuel oil injection cutoff process is carried out to blast pipe fuel injection equipment (FIE) 5.ECU 10 is post-processed to press according to before and after DPF catalyst converters
Difference signal judges DPF catalyst converter carbon carrying capacity, when pressure difference signal value is higher than the thresholding of pressure difference signal before and after DPF catalyst converters, rear place
Manage ECU 10 and judge whether DPF catalyst converter carbon carrying capacity is higher than a threshold value, so as to need progress DPF Catalyst Regenerations please
Ask.On the other hand, when pressure difference is less than a threshold value, DPF catalyst converters are just without regeneration.Pressure difference threshold value depends on DPF
Catalyst converter characteristic parameter.When the front-seat temperature of DOC catalyst converters is not reaching to a threshold value, blast pipe fuel injection equipment (FIE) 5 will not be by
Fuel oil is ejected into blast pipe, causes the front-seat temperature of DPF catalyst converters not have the purpose for the arrangement is that avoiding fuel oil from being ejected into blast pipe
Rise, or even there is the too high phenomenon of the front-seat temperature appearance of DPF catalyst converters.
Technical scheme is once risen when needing to carry out the regeneration of carbon carrying capacity by heat management in diesel engine machine
Temperature, it is ensured that DOC catalyst converters front row temperature meets blast pipe fuel oil injection Rule of judgment, while being sprayed by blast pipe fuel oil, realizes
DOC catalyst converter secondary temperature elevations, so as to realize DPF Catalyst Regenerations, reduce the energy consumption that regeneration is produced in diesel engine machine, so as to drop
Low oil dilution rate, improves the reliability of diesel engine.Particularly advantage of the invention is as follows：First, diesel fuel is injected into row
The fuel injection mode of tracheae realizes the regeneration function of DPF catalyst converters, can so avoid the oil spurts of cylinder of diesel engine internal combustion from regenerating
The oil dilution brought, it is ensured that the reliability service of diesel engine.2nd, heat management ensures that diesel engine turns in constant in diesel engine machine
Run under speed and load condition, the load variations of diesel engine are small, stable operation, so ensure that diesel exhaust gas temperature is kept
It is constant.So as to be carried out using blast pipe oil spout, secondary temperature elevation control accuracy is high, and regeneration temperature fluctuation is small, realizes optimum condition again
It is raw.If the 3, catalyst converter delivery temperature is less than certain threshold value before DOC, by intake-air throttle valve control, arrange catalyst converter before DOC
Temperature degree can bring up to a level, DPF catalyst converters is regenerated.4th, when diesel exhaust gas temperature is raised, DPF is catalyzed
When device regeneration needs regeneration, DPF catalyst converters can be with stable regeneration.Intake-air throttle valve regeneration temperature is managed and diesel engine service condition
It is unrelated, automatically controlled according to the request of DPF Catalyst Regenerations, it is not necessary to which driver frequently controls throttle signal, reduces driver's
Fatigue.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel, which would not require any inventive effort, can associate other embodiments of the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (4)
1. a kind of DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout, it is characterised in that including DPF
Catalyst Regeneration request switch, intake-air throttle valve, blast pipe fuel injection equipment (FIE), exhaust temperature sensor, differential pressure pickup and after
Handle ECU；The DPF Catalyst Regenerations request switch is used to send regeneration request signal manually；The intake-air throttle valve
Installed in air inlet pipe, for carrying out air inlet restriction temperature treatment；The blast pipe fuel injection equipment (FIE) be arranged on DPF catalyst converters it
Before；After the exhaust temperature sensor is including exhaust temperature sensor, DPF catalyst converters before exhaust temperature sensor, DPF catalyst converters before DOC catalyst converters
Exhaust temperature sensor；The differential pressure pickup is mounted on before and after DPF catalyst converters；The post processing ECU control is according to temperature
Degree and pressure difference signal drive blast pipe fuel injection equipment (FIE)；When DPF Catalyst Regenerations request switch carries out regeneration function request,
Burning demarcation is exhausted heat management and once heated up in diesel engine machine, the front-seat temperature of DOC catalyst converters is reached that blast pipe fuel oil is carried out
Row's temperature threshold value of injection, and then pipe oil spout is exhausted in blast pipe fuel injection equipment (FIE), and pipe secondary temperature elevation is exhausted；When
When the front-seat temperature of DOC catalyst converters is less than row's temperature threshold value, blast pipe fuel injection equipment (FIE) cut-out fuel oil is injected into blast pipe.
2. the DPF initiative regeneration control systems according to claim 1 based on heat management in machine and blast pipe oil spout, it is special
Levy and be, the differential pressure pickup setting threshold value installed before and after DPF catalyst converters judges that DPF is urged according to the threshold value
Change whether device needs regeneration；When DPF catalyst converters need to be regenerated, it is necessary to carry out when the front-seat temperature of DOC catalyst converters is less than thresholding
Heat management provides delivery temperature in diesel engine machine, so that DPF catalyst converters can be normally carried out fuel oil jet regeneration.
3. the DPF initiative regeneration control systems according to claim 2 based on heat management in machine and blast pipe oil spout, it is special
Levy and be, exhaust temperature sensor correspondence exports temperature before DOC catalyst converters before exhaust temperature sensor, DPF catalyst converters before the DOC catalyst converters
Temperature signal gives the post processing ECU before signal, DPF catalyst converters, and the post processing ECU is according to DOC catalyst converters
Temperature signal determines a need for carrying out heat management demarcation in diesel engine machine before preceding temperature signal, DPF catalyst converters, arranges diesel engine
Temperature reaches blast pipe fuel-injected temperature requirement.
4. the DPF initiative regeneration control systems according to claim 3 based on heat management in machine and blast pipe oil spout, it is special
Levy and be, the post processing ECU when the differential pressure pickup installed before and after DPF catalyst converters specifically for collecting pressure difference
Value is more than threshold value, while when the front-seat temperature of DOC catalyst converters is more than limit value, DPF fuel injection equipment (FIE)s can the row of injecting fuel into
In tracheae；When the differential pressure pickup installed before and after DPF catalyst converters collects pressure difference more than threshold value, while DOC catalyst converters
When front-seat temperature is less than limit value, post processing ECU will send heat management request signal to diesel engine electric control unit, diesel oil
Machine control unit will carry out heat management in machine and demarcate, and the front-seat temperature of blast pipe DOC catalyst converters is higher than threshold value, blast pipe fuel oil
Injection apparatus injects fuel into blast pipe, carries out DPF Catalyst Regeneration temperature treatments.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710386330.2A CN107013292A (en) | 2017-05-26 | 2017-05-26 | DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout |
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| CN201710386330.2A CN107013292A (en) | 2017-05-26 | 2017-05-26 | DPF initiative regeneration control systems based on heat management in machine and blast pipe oil spout |
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Cited By (6)
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| CN108150249A (en) * | 2018-03-02 | 2018-06-12 | 天津大学 | A kind of methanol realizes grain catcher regeneration method and system for external energy |
| CN108533361A (en) * | 2018-04-27 | 2018-09-14 | 艾蓝腾新材料科技(上海)有限公司 | A kind of independent dpf regeneration system |
| CN109083720A (en) * | 2018-07-26 | 2018-12-25 | 东风商用车有限公司 | A kind of diesel vehicle DPF initiative regeneration temprature control method |
| CN109139196A (en) * | 2018-07-26 | 2019-01-04 | 东风商用车有限公司 | A kind of diesel engine DPF active regeneration control method |
| CN109653839A (en) * | 2018-12-11 | 2019-04-19 | 联合汽车电子（重庆）有限公司 | Particle trap generation control system and method |
| CN111412039A (en) * | 2020-03-31 | 2020-07-14 | 凯龙高科技股份有限公司 | Diesel engine discrete DPF thermal management regeneration device for service station |
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| CN108150249A (en) * | 2018-03-02 | 2018-06-12 | 天津大学 | A kind of methanol realizes grain catcher regeneration method and system for external energy |
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| CN109083720A (en) * | 2018-07-26 | 2018-12-25 | 东风商用车有限公司 | A kind of diesel vehicle DPF initiative regeneration temprature control method |
| CN109139196A (en) * | 2018-07-26 | 2019-01-04 | 东风商用车有限公司 | A kind of diesel engine DPF active regeneration control method |
| CN109083720B (en) * | 2018-07-26 | 2020-01-07 | 东风商用车有限公司 | Diesel vehicle DPF active regeneration temperature control method |
| CN109653839A (en) * | 2018-12-11 | 2019-04-19 | 联合汽车电子（重庆）有限公司 | Particle trap generation control system and method |
| CN109653839B (en) * | 2018-12-11 | 2021-07-27 | 联合汽车电子（重庆）有限公司 | Particle catcher regeneration control system and method |
| CN111412039A (en) * | 2020-03-31 | 2020-07-14 | 凯龙高科技股份有限公司 | Diesel engine discrete DPF thermal management regeneration device for service station |
| CN111412039B (en) * | 2020-03-31 | 2021-12-31 | 凯龙高科技股份有限公司 | Diesel engine discrete DPF thermal management regeneration device for service station |
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