CN105927325A - DPF regeneration control system of heavy type vehicle - Google Patents
DPF regeneration control system of heavy type vehicle Download PDFInfo
- Publication number
- CN105927325A CN105927325A CN201610402900.8A CN201610402900A CN105927325A CN 105927325 A CN105927325 A CN 105927325A CN 201610402900 A CN201610402900 A CN 201610402900A CN 105927325 A CN105927325 A CN 105927325A
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- CN
- China
- Prior art keywords
- dpf
- doc
- temperature sensor
- upstream temperature
- control system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating 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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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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)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to a DPF regeneration control system of a heavy type vehicle. The DPF regeneration control system of the heavy type vehicle comprises a motor, pressurizers, an intercooler, an air intake throttling valve, a HC spraying device, a DOC, a DPF, a crankshaft rotating speed sensor and a regeneration request switch arranged in a driving cabin, wherein the intercooler and the air intake throttling valve are positioned behind the pressurizers, and are sequentially arranged on an air intake pipe in an air intake direction; the HC spraying device, the DOC and the DPF are sequentially arranged on an air draining pipe in an air draining direction; a DOC upstream temperature sensor is arranged between the HC spraying device and the DOC; a DPF upstream temperature sensor is arranged between the DOC and the DPF; an EGR valve is arranged between the air intake pipe and the air draining pipe; the crankshaft rotating speed sensor, the regeneration request switch, the air intake throttling valve, the EGR valve, the HC spraying device, the DOC upstream temperature sensor and the DPF upstream temperature sensor are separately and electrically connected with an ECU. According to the DPF regeneration control system disclosed by the invention, automatic in-situ regeneration of the DPF can be realized, and the DPF regeneration control system disclosed by the invention is simple in structure and high in reliability.
Description
Technical field
The present invention relates to a kind of heavy-duty car dpf regeneration control system.
Background technology
The regulation of our country is increasingly stricter to the emission request of heavy vehicle exhaust at present, and the discharge of vehicle exhaust becomes the major criterion weighing automotive quality.In order to reach state's VI discharge standard, the most not only engine body design to change, increase EGR(waste gas recirculation) device with reduce former machine NOX(nitrogen oxides), after-treatment system DOC(to be increased exhaust purifier) and DPF(exhaust gas processing device), to reduce the particulate matter in exhaust emissions.DPF is the highest to particulate matter filter efficiency, major part particulate matter can be caught, but prolongation over time, the granule piled up on carrier gets more and more, and not only affects arresting efficiency, exhaust back pressure also can be caused to increase, the work making electromotor itself deteriorates, so, DPF device needs regular regeneration, to burn the carbon granule of building up inside.
Summary of the invention
The present invention is in order to overcome the deficiency of above technology, it is provided that a kind of heavy-duty car dpf regeneration control system, and this system can realize the original place automatic regeneration of DPF, simple in construction by ECU, and reliability is high.
The present invention overcomes its technical problem be the technical scheme is that
A kind of heavy-duty car dpf regeneration control system, including electromotor, supercharger, charge air cooler, intake-air throttle valve, HC injection apparatus, DOC, DPF, crankshaft rotational speed sensor and the regeneration request switch being arranged in driver's cabin, the compressor blade of supercharger is arranged in engine air inlet tube, wormwheel blade is arranged in the exhaust pipe of engine, it is set in turn in air inlet pipe after charge air cooler and intake-air throttle valve are positioned at supercharger and along airintake direction, HC injection apparatus, DOC and DPF is set in turn on exhaustor along discharge directions, DOC upstream temperature sensor it is provided with between HC injection apparatus and DOC, DPF upstream temperature sensor it is provided with between DOC and DPF, EGR valve it is provided with between air inlet pipe and exhaustor；Described crankshaft rotational speed sensor, regeneration request switch, intake-air throttle valve, EGR valve, HC injection apparatus, DOC upstream temperature sensor and DPF upstream temperature sensor all electrically connect with the ECU of vehicle.
According to currently preferred, described supercharger is the worm wheel pressure booster of a two-step supercharging.
The invention has the beneficial effects as follows:
The present invention controls the regenerative process of DPF by ECU, it is achieved the original place automatic regeneration of DPF, simple in construction, and reliability is high；For existing vehicle, change amount is little, it is not necessary to increase too many additional components, it is simple to technological transformation is upgraded, can popularization and application on a large scale.
Accompanying drawing explanation
Fig. 1 is the system principle schematic diagram of the present invention.
In figure, 1-supercharger；2-charge air cooler；3-intake-air throttle valve；4-EGR valve；5-electromotor；6-HC injection apparatus；7-DOC upstream temperature sensor；8-DOC；9-DPF upstream temperature sensor；10-DPF.
Detailed description of the invention
Being better understood from the present invention for the ease of those skilled in the art, be described in further details the present invention with specific embodiment below in conjunction with the accompanying drawings, following is only exemplary not limit protection scope of the present invention.
nullAs shown in Figure 1，The invention discloses a kind of heavy-duty car dpf regeneration control system，Including electromotor 5、Supercharger 1、Charge air cooler 2、Intake-air throttle valve 3、HC injection apparatus 6、DOC 8、DPF 10、Crankshaft rotational speed sensor and the regeneration request switch being arranged in driver's cabin，The compressor blade of supercharger 1 is arranged in engine air inlet tube、Wormwheel blade is arranged in the exhaust pipe of engine，It is set in turn in air inlet pipe after charge air cooler 2 and intake-air throttle valve 3 are positioned at supercharger and along airintake direction，HC injection apparatus 6、DOC 8 and DPF 10 is set in turn on exhaustor along discharge directions，It is provided with DOC upstream temperature sensor 7 between HC injection apparatus 6 and DOC 8，It is provided with DPF upstream temperature sensor 9 between DOC 8 and DPF 10，EGR valve 4 it is provided with between air inlet pipe and exhaustor；Described crankshaft rotational speed sensor, regeneration request switch, intake-air throttle valve 3, EGR valve 4, HC injection apparatus 6, DOC upstream temperature sensor 7 and DPF upstream temperature sensor 9 all electrically connect with the ECU of vehicle.When activating and regenerating request switch, ECU, by spraying advance angle, distributive value and main jet advance angle and intake-air throttle valve 3 and the aperture of EGR valve 4 after adjusting, controls the upstream temperature of DOC 8；By HC injection apparatus 6, control the upstream temperature of DPF 10, to complete regeneration.
The specific works process of heavy-duty car dpf regeneration control system of the present invention is as follows:
1, the temperature rise period: vehicle is parked in a certain place, start electromotor, press regeneration request switch, then ECU control engine speed maintains a certain higher rotation speed, adjust rear spray advance angle, distributive value and main jet advance angle that this rotating speed is corresponding, (general EGR valve 4 completely closes the aperture of control intake-air throttle valve 3 and EGR valve 4, and i.e. zero exhausted air quantity enters engine air inlet tube, prevents EGT to run off simultaneously；Intake-air throttle valve 3 closes more than 50%, i.e. close a part of FAI Fresh Air Intake amount, to play the effect of insulation), make DOC 8 upstream temperature temperature control in 350 DEG C-400 DEG C, ECU internal timer starts timing when pressing regeneration request switch, this stage duration T1.
2, regeneration stage: after the temperature rise period terminates, ECU controls engine speed and maintains a certain higher rotation speed, HC injection apparatus 6 sprays into diesel oil in the exhaust pipe of engine, temperature is improved through DOC 8, make carbon granule burning in DPF 10 (in order to ensure the abundant burning of carbon granule, DPF upstream temperature controls at about 600 DEG C).ECU internal timer starts timing after the temperature rise period terminates, and this stage duration T2, described T2 can be configured according to road conditions before twice regeneration intervals duration and regeneration etc..
3, temperature-fall period: after regeneration stage terminates, ECU controls electromotor and returns to idling, control intake-air throttle valve 3 entirely to open simultaneously, i.e. maximum FAI Fresh Air Intake amount enters engine air inlet tube, the upstream temperature of ECU detection DOC 8 and the upstream temperature of DPF 10, when below setting value, then it is assumed that lower the temperature successfully.After lowering the temperature successfully, complete regenerative process, enter normal operation mode.
Above only describes ultimate principle and the preferred implementation of the present invention, those skilled in the art can many changes may be made and improves according to foregoing description, and these changes and improvements should belong to protection scope of the present invention.
Claims (2)
1. a heavy-duty car dpf regeneration control system, it is characterized in that: include electromotor, supercharger, charge air cooler, intake-air throttle valve, HC injection apparatus, DOC, DPF, crankshaft rotational speed sensor and the regeneration request switch being arranged in driver's cabin, the compressor blade of supercharger is arranged in engine air inlet tube, wormwheel blade is arranged in the exhaust pipe of engine, it is set in turn in air inlet pipe after charge air cooler and intake-air throttle valve are positioned at supercharger and along airintake direction, HC injection apparatus, DOC and DPF is set in turn on exhaustor along discharge directions, DOC upstream temperature sensor it is provided with between HC injection apparatus and DOC, DPF upstream temperature sensor it is provided with between DOC and DPF, EGR valve it is provided with between air inlet pipe and exhaustor；Described crankshaft rotational speed sensor, regeneration request switch, intake-air throttle valve, EGR valve, HC injection apparatus, DOC upstream temperature sensor and DPF upstream temperature sensor all electrically connect with the ECU of vehicle.
2. according to the system described in claim 1, it is characterised in that: described supercharger is the worm wheel pressure booster of a two-step supercharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402900.8A CN105927325A (en) | 2016-06-12 | 2016-06-12 | DPF regeneration control system of heavy type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402900.8A CN105927325A (en) | 2016-06-12 | 2016-06-12 | DPF regeneration control system of heavy type vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105927325A true CN105927325A (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402900.8A Pending CN105927325A (en) | 2016-06-12 | 2016-06-12 | DPF regeneration control system of heavy type vehicle |
Country Status (1)
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| CN (1) | CN105927325A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948912A (en) * | 2017-03-30 | 2017-07-14 | 无锡威孚力达催化净化器有限责任公司 | Diesel engine after treatment is vented thermal management algorithm and device |
| CN107780996A (en) * | 2017-09-27 | 2018-03-09 | 无锡威孚力达催化净化器有限责任公司 | A kind of control device and control method of the temperature raising of choke valve assisting DPF regeneration |
| CN107989709A (en) * | 2016-10-26 | 2018-05-04 | 通用汽车环球科技运作有限责任公司 | For controlling the regeneration method and equipment of exhaust gas feedstream particulate filter |
| CN108087072A (en) * | 2017-12-27 | 2018-05-29 | 潍柴动力股份有限公司 | Monitor method and the electronic control unit that engine dpf regeneration is completed |
| CN109139196A (en) * | 2018-07-26 | 2019-01-04 | 东风商用车有限公司 | Diesel engine DPF active regeneration control method |
| CN111749770A (en) * | 2020-06-29 | 2020-10-09 | 中国重汽集团济南动力有限公司 | DPF service regeneration control device and method |
| CN113356986A (en) * | 2021-06-24 | 2021-09-07 | 中国重汽集团济南动力有限公司 | DPF sectional regeneration method |
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| US20080083212A1 (en) * | 2006-10-10 | 2008-04-10 | Frank Ament | Oxygen based particulate filter regeneration strategy |
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2016
- 2016-06-12 CN CN201610402900.8A patent/CN105927325A/en active Pending
Patent Citations (6)
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| US20080083212A1 (en) * | 2006-10-10 | 2008-04-10 | Frank Ament | Oxygen based particulate filter regeneration strategy |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989709A (en) * | 2016-10-26 | 2018-05-04 | 通用汽车环球科技运作有限责任公司 | For controlling the regeneration method and equipment of exhaust gas feedstream particulate filter |
| CN106948912A (en) * | 2017-03-30 | 2017-07-14 | 无锡威孚力达催化净化器有限责任公司 | Diesel engine after treatment is vented thermal management algorithm and device |
| CN106948912B (en) * | 2017-03-30 | 2019-12-27 | 无锡威孚力达催化净化器有限责任公司 | Diesel engine post-treatment exhaust heat management method and device |
| CN107780996A (en) * | 2017-09-27 | 2018-03-09 | 无锡威孚力达催化净化器有限责任公司 | A kind of control device and control method of the temperature raising of choke valve assisting DPF regeneration |
| CN108087072A (en) * | 2017-12-27 | 2018-05-29 | 潍柴动力股份有限公司 | Monitor method and the electronic control unit that engine dpf regeneration is completed |
| CN109139196A (en) * | 2018-07-26 | 2019-01-04 | 东风商用车有限公司 | Diesel engine DPF active regeneration control method |
| CN111749770A (en) * | 2020-06-29 | 2020-10-09 | 中国重汽集团济南动力有限公司 | DPF service regeneration control device and method |
| CN113356986A (en) * | 2021-06-24 | 2021-09-07 | 中国重汽集团济南动力有限公司 | DPF sectional regeneration method |
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Application publication date: 20160907 |