CN105888815B - Engine exhaust processing system and engine intercooler control method for fan - Google Patents
Engine exhaust processing system and engine intercooler control method for fan Download PDFInfo
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- CN105888815B CN105888815B CN201610364851.3A CN201610364851A CN105888815B CN 105888815 B CN105888815 B CN 105888815B CN 201610364851 A CN201610364851 A CN 201610364851A CN 105888815 B CN105888815 B CN 105888815B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0493—Controlling the air charge temperature
-
- 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
- F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
-
- 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
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
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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
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to technical field of vehicle, more particularly to a kind of engine exhaust processing system and engine intercooler control method for fan, including external feed stream device, post-process case, intercooler and control device, the air inlet of the intercooler is connect with the external feed stream device, the exhaust outlet of the intercooler is connected by the air inlet of first pipe and engine, the exhaust outlet of the engine is connect by second pipe with the post-processing case, the control device is connect with the fan of the second pipe and the intercooler respectively, preceding gas temperature is post-processed in the second pipe for detecting, and the rotation speed of the fan of the intercooler is controlled according to testing result.The rotation speed of the fan of intercooler of the present invention, to improve the effluent air temp of intercooler, and then play the purpose for improving engine exhaust temperature, the gas temperature of case after engine is discharged into can be effectively improved, guarantee that the gas temperature for entering post-processing case is suitable for improving SCR conversion efficiency to reduce urea crystals risk.
Description
Technical field
The present invention relates to technical field of vehicle more particularly to a kind of engine exhaust processing system and engine intercooler wind
Fan controlling method.
Background technique
SCR technology refers to that selective catalytic reduction, internal combustion engine post-processing technology apply catalysis in post-processing carrier at present
Agent is reacted by injection urea with the harmful substance in exhaust, and the common technology of After-treatment technics now, usual situation
Under, as shown in Figure 1, gas is by entering intercooler 3 after the filtering of air filter 12 and the pressure side pressurization of booster 11, intercooler 3 is adopted
With air-air cooling, the pressurized gas of air cooling generated using the rotation of fan 31, gas after cooling enters engine 5,
It is discharged into post-processing case 2 after the whirlpool end pressurization that the gas that engine 5 is discharged passes through booster 11, engine 5 is discharged in post-processing case 2
Gas in harmful substance handled.The technology can be effectively reduced the NOx pernicious gas of engine discharge, but restrict
The key of SCR technology is exactly to need suitable engine exhaust temperature, will will lead to SCR conversion in low exhaust temperature
The reduction of NOx efficiency so that engine exhaust discharge of poisonous waste is exceeded, and brings urea crystals wind to after-treatment system
Danger.
Existing fan is mostly fixed same rotating speed fan, cannot achieve the function of promoting delivery temperature, separately there is electromagnetism multi-speed
Fan is controlled by engine load rate and water temperature, as the raising rotation speed of the fan of engine load rate and water temperature accordingly becomes faster, and
Not for the control action for improving delivery temperature, control function is single.
Summary of the invention
(1) technical problems to be solved
It can not be according to engine the technical problem to be solved by the present invention is to solve the intercooler of available engine exhaust system
Delivery temperature cooling is adjusted, control function is single, it is difficult to realize promoted engine exhaust temperature, be easy to cause SCR turn
The reduction for changing NOx efficiency, so that engine exhaust discharge of poisonous waste is exceeded, and brings urea crystals to after-treatment system
The problem of risk.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of engine exhaust processing systems, including external feed stream
Device, post-processing case, intercooler and control device, the air inlet of the intercooler is connect with the external feed stream device, described
The exhaust outlet of intercooler is connected by the air inlet of first pipe and engine, and the exhaust outlet of the engine passes through second pipe
It is connect with the post-processing case, the control device is connect with the fan of the second pipe and the intercooler respectively, is used for
Gas temperature before post-processing in the second pipe is detected, and controls the rotation speed of the fan of the intercooler according to testing result.
Wherein, the control device includes ECU and the second temperature sensor that is set in the second pipe, described
ECU is connect with the second temperature sensor, is believed with acquiring gas temperature before the post-processing that the second temperature sensor is sent
Number and compared with the first temperature threshold, and control signal is generated according to comparison result and controls the rotation speed of the fan of the intercooler.
Wherein, the control device further includes the rotational speed governor connecting with the fan of the intercooler, the ECU and institute
Rotational speed governor connection is stated, gas temperature signal is less than first temperature before the post-processing that the second temperature sensor is sent
When spending threshold value, the ECU, which sends control signal, reduces the rotation speed of the fan of the intercooler.
Wherein, the control device further includes the first temperature sensor being set in the first pipe, the ECU with
First temperature sensor connection, with before the post-processing that the second temperature sensor is sent gas temperature signal less than institute
After stating the first temperature threshold, acquire first temperature sensor send in it is cold after gas temperature signal and with second temperature threshold
Value compares, when gas temperature signal is less than the second temperature threshold value after cold in first temperature sensor transmission, institute
Stating ECU transmission control signal reduces the rotation speed of the fan of the intercooler.
Wherein, the control device further includes the engine sensor being connected with the engine, the ECU and the hair
The connection of motivation sensor is obtained currently with acquiring engine rotational speed signal and the distributive value signal of the engine sensor transmission
The operating condition of the engine, to set up the size of the second temperature threshold value.
The present invention also provides a kind of engine intercooler control method for fan, include the following steps：
S1, whether gas temperature less than the first temperature threshold before judging to post-process, if then carrying out step S2, if otherwise into
Row step S3；
S2 reduces the rotation speed of the fan of current intercooler, the return step S1 after preset time；
S3 maintains current rotation speed of the fan.
Wherein, it is further comprising the steps of when gas temperature is less than the first temperature threshold before post-processing in step S1：
S101, it is cold in judgement after gas temperature whether be less than second temperature threshold value, if then carrying out step S2, if otherwise into
Row step S3.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the following advantages that：The control device of inventive engine exhaust-gas treatment system is examined
Gas temperature before after logging process, and the rotation speed of the fan of intercooler is controlled according to testing result, to improve the discharge gas of intercooler
Temperature, and then the purpose for improving engine exhaust temperature is played, the gas temperature of case after engine is discharged into can be effectively improved
Degree guarantees that the gas temperature for entering post-processing case is suitable for improving SCR conversion efficiency, avoiding engine exhaust discharge of poisonous waste
It is exceeded, reduce urea crystals risk.The present invention carries out intelligent control by fan of the control device to intercooler, in original fan
Increase the row's of mentioning temperature function on the basis of control, improves the effect of the fan of intercooler；It can play a role in vehicle application,
Reduce the failure rate of product especially aftertreatment products, reduces discharge risk.
In addition to it is described above present invention solves the technical problem that, constitute technical solution technical characteristic and have this
Except advantage brought by the technical characteristic of a little technical solutions, other technical characteristics of the invention and these technical characteristic brings
Advantage will be further illustrated in conjunction with attached drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the engine exhaust processing system of the prior art；
Fig. 2 is the structural schematic diagram of one engine exhaust processing system of the embodiment of the present invention；
Fig. 3 is the flow chart of engine with two intercooler control method for fan of the embodiment of the present invention.
In figure：1：External feed stream device；2：Post-process case；3：Intercooler；4：Control device；5：Engine；6：First pipe
Road；7：Second pipe；11：Booster；12：Air filter；31：Fan；41：ECU；42：Second temperature sensor；43：First temperature
Sensor；T1：Gas temperature before post-processing；T10：First temperature threshold；T2：In it is cold after gas temperature；T20：Second temperature threshold
Value；t：Preset time.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " be meant that two or
Two or more, " several ", " several ", " several groups " are meant that one or more.
Embodiment one
As shown in Fig. 2, the embodiment of the present invention one provide engine exhaust processing system, including external feed stream device 1, after
The air inlet for the treatment of box 2, intercooler 3 and control device 4, intercooler 3 is connect with external feed stream device 1, the exhaust outlet of intercooler 3
It is connect by first pipe 6 with the air inlet of engine 5, the exhaust outlet of engine 5 is connected by second pipe 7 and post-processing case 2
It connects, control device 4 is connect with the fan 31 of second pipe 7 and intercooler 3 respectively, for detecting in second pipe 7 before post-processing
Gas temperature, and 31 revolving speed of fan of intercooler 3 is controlled according to testing result.
Outside air enters intercooler by external feed stream device and is cooled down, cold rear gas in discharge after intercooler is cooling
Into engine, gas enters post-processing case progress SCR processing, inventive engine before being post-processed by engine exhaust port discharge
Gas temperature before the control device detection of exhaust-gas treatment system post-processes, and the fan for controlling intercooler according to testing result turns
Speed to improve the effluent air temp of intercooler, and then plays the purpose for improving engine exhaust temperature, can effectively improve
The gas temperature of case after engine is discharged into guarantees that the gas temperature for entering post-processing case is suitable for improving SCR conversion efficiency, keeping away
It is exceeded to exempt from engine exhaust discharge of poisonous waste, reduces urea crystals risk.The present invention is by control device to the wind of intercooler
Fan carries out intelligent control, increases the row's of mentioning temperature function on the basis of original fan control, improves the effect of the fan of intercooler；
It can play a role in vehicle application, reduce the failure rate of product especially aftertreatment products, reduce discharge risk.
Wherein, control device 4 includes that ECU41 (electronic control unit) and the second temperature being set in second pipe 7 pass
Sensor 42, ECU41 are connect with second temperature sensor 42, gas temperature before the post-processing to acquire the transmission of second temperature sensor 42
It spends signal and generates 31 revolving speed of fan that control signal controls intercooler 3 compared with the first temperature threshold, and according to comparison result.
Second temperature sensor detects the gas temperature being discharged in second pipe by engine exhaust port, and will test signal and be sent to
ECU, ECU by its with artificially according to post-processing case working condition setting the first temperature threshold be compared, according to compare knot
Fruit controls the rotation speed of the fan of intercooler, realizes the intelligence that the rotation speed of the fan of gas temperature control and intercooler before post-processing controls
Energyization combines.
Wherein, control device 4 further includes the rotational speed governor connecting with the fan 31 of intercooler 3, and ECU41 and revolving speed control
Device connection, when gas temperature signal is less than the first temperature threshold before the post-processing that second temperature sensor 42 is sent, ECU41 hair
31 revolving speed of fan for sending control signal to reduce intercooler 3.When gas temperature signal is less than the first temperature threshold before handling, ECU
Sending a control signal to rotational speed governor reduces the rotation speed of the fan of intercooler；Gas temperature signal is greater than the first temperature before handling
When spending threshold value, ECU, which sends a control signal to rotational speed governor, keeps the current status unchanged the rotation speed of the fan of intercooler, improves
The timeliness and accuracy of control and regulation.
Further, control device 4 further includes the first temperature sensor 43 being set in first pipe 6, ECU41 and
One temperature sensor 43 connection, with before the post-processing that second temperature sensor 42 is sent gas temperature signal less than the first temperature
After threshold value, the first temperature sensor 43 of acquisition send in it is cold after gas temperature signal and with second temperature threshold value comparison, when the
When cold rear gas temperature signal is less than second temperature threshold value in the transmission of one temperature sensor 43, ECU41 sends control signal and drops
31 revolving speed of fan of low intercooler 3.If the rotation speed of the fan that ECU controls intercooler is too low, it is possible to cause to enter in engine
The temperature drift of gas influences the normal operation of engine more than the maximum temperature of engine operation after cold, therefore the
Setting detection enters the first temperature sensor of the temperature of engine gas in one pipeline, and ECU receives the first temperature sensor hair
In sending it is cold after temperature gas signal and it is compared with second temperature threshold value, second temperature threshold value be can scalar quantity, generally
The setting value of second temperature threshold value is higher than cold rear gas temperature in when engine operates normally, and the value can be always under normal circumstances
In being greater than it is cold after gas actual temperature, but the setting of second temperature threshold value in the present invention is slightly less than function is started to operate normally
Maximum temperature, it is cold in after gas temperature drift be more than second temperature threshold value, then ECU sends a control signal to revolving speed control
Device control fan rated speed processed is constant, prevents the normal operation for influencing engine, at this time the company of the first temperature sensor and ECU
Setting is connect to play a protective role to engine and entire exhaust-gas treatment system.
Wherein, control device 4 further includes the engine sensor connecting with engine 5, and ECU41 and engine sensor connect
It connects, to acquire the engine rotational speed signal of engine sensor transmission and the operating condition of distributive value signal acquisition present engine 5, from
And set up the size of second temperature threshold value.ECU obtains engine rotational speed signal and distributive value letter according to by engine sensor
Number determine current state under engine operating condition, staff can table look-up to obtain second temperature threshold value according to operating condition, and can increase
Add the amendment of the relevant parameters such as environmental pressure temperature and engine water temperature, adjust the size of second temperature threshold value, makes to determine the
Two temperature thresholds are more scientific accurate.
Specifically, external feed stream device 1 includes booster 11 and air filter 12, the pressure side air inlet and air filter 12 of booster 11
Connection, the pressure side exhaust outlet of booster 11 are connect with the air inlet of intercooler 3, the whirlpool end air inlet and engine 5 of booster 11
Exhaust outlet connection, the whirlpool end exhaust outlet of booster 11 connect with case 2 is post-processed.Outside air keeps pure by air filter, into
It is passed through cooling in intercooler again after entering the pressure side pressurization of booster, the gas of then engine discharge increases by the whirlpool end of booster
It is passed through after pressure in post-processing case, carries out exhaust-gas treatment purification.
Embodiment two
As shown in figure 3, including the following steps second embodiment of the present invention provides engine intercooler control method for fan：
S1 judges that whether gas temperature T1 is less than the first temperature threshold T10 before post-processing, if then carrying out step S2, if
Otherwise step S3 is carried out；
S2 reduces the rotation speed of the fan of current intercooler, the return step S1 after preset time t；
S3 maintains current rotation speed of the fan.
Inventive engine intercooler control method for fan improves intercooler discharge by the rotation speed of the fan of control intercooler
Gas temperature, and then play improve engine delivery temperature purpose, improve SCR conversion efficiency, avoid engine exhaust
Discharge of poisonous waste is exceeded, reduces urea crystals risk.Increase the row's of mentioning temperature function on the basis of original fan control, improves
The effect of the fan of intercooler；It can play a role in vehicle application, reduce the failure rate of product especially aftertreatment products,
Reduce discharge risk.After gas temperature is less than the first temperature threshold before judgement post-processes, the rotation speed of the fan of intercooler is reduced, and is protected
After holding a period of time, judge that whether gas temperature is less than the first temperature threshold before handling again, if still less than the first temperature threshold
Value, then carrying out the adjustment to the rotation speed of the fan of intercooler, circuits sequentially until gas temperature reaches the first temperature before post-processing
Threshold requirement standard, gradually being adjusted with this can ensure that adjustment process is stablized, and adjusted result is more accurate, better effect, favorably
It is run in the work of engine.
It further, further include following when gas temperature T1 is less than the first temperature threshold T10 before post-processing in step S1
Step：
S101, it is cold in judgement after gas temperature T2 whether be less than second temperature threshold value T20, if then carrying out step S2, if
Otherwise step S3 is carried out.
To avoid the rotation speed of the fan of intercooler too low, leads to enter the temperature drift of cold rear gas in engine, be more than
The maximum temperature of engine operation influences the normal operation of engine, therefore gas temperature is less than before judgement post-processes
After first temperature threshold, increase the step of detection enters the temperature of engine gas, in it is cold after gas temperature and second temperature threshold
Value compares, second temperature threshold value be can scalar quantity, when the setting value of general second temperature threshold value is higher than engine and operates normally
In it is cold after gas temperature, under normal circumstances the value can be always more than in it is cold after gas actual temperature, but in the present invention the
The setting of two temperature thresholds be slightly less than start function operate normally maximum temperature, if in it is cold after gas temperature less than second temperature
Spend threshold value, then reduce the current rotating speed of intercooler fan, if in it is cold after gas temperature drift be more than second temperature threshold value, make
Device control fan rated speed is constant, prevents the normal operation for influencing engine, the increase of this step is to engine and entire row
Gas processing system plays a protective role.
Engine intercooler control method for fan provided in this embodiment can be started with through the foregoing embodiment one offer
Machine exhaust-gas treatment system realizes that cold rear gas temperature, second temperature sensor detection post-process in the detection of the first temperature sensor
Preceding gas temperature, the two will test signal and be sent to ECU, and ECU obtains information post-processing generation control signal and is sent to revolving speed
The rotation speed of the fan of intercooler is adjusted in controller, rotational speed governor.
In conclusion inventive engine exhaust-gas treatment system and engine intercooler control method for fan control intercooler
Rotation speed of the fan, to improve the effluent air temp of intercooler, and then play the purpose for improving engine exhaust temperature, can
The gas temperature of case after engine is discharged into is effectively improved, guarantees that the gas temperature for entering post-processing case is suitable for improving SCR conversion
Efficiency avoids engine exhaust discharge of poisonous waste exceeded, reduces urea crystals risk.The present invention is cold by control device centering
The fan of device carries out intelligent control, increases the row's of mentioning temperature function on the basis of original fan control, improves the fan of intercooler
Effect；It can play a role in vehicle application, reduce the failure rate of product especially aftertreatment products, reduce discharge wind
Danger.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that：It still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (4)
1. a kind of engine exhaust processing system, it is characterised in that：Including external feed stream device, post-processing case, intercooler and control
Device processed, the air inlet of the intercooler are connect with the external feed stream device, and the exhaust outlet of the intercooler passes through the first pipe
The exhaust outlet of the connection of the air inlet of road and engine, the engine is connect by second pipe with the post-processing case, described
Control device is connect with the fan of the second pipe and the intercooler respectively, is post-processed for detecting in the second pipe
Preceding gas temperature, and the rotation speed of the fan of the intercooler is controlled according to testing result；The control device includes ECU and is set to
Second temperature sensor in the second pipe, the ECU are connect with the second temperature sensor, to acquire described second
Gas temperature signal and compared with the first temperature threshold before the post-processing that temperature sensor is sent, and generated and controlled according to comparison result
Signal processed controls the rotation speed of the fan of the intercooler；The control device further includes the first temperature being set in the first pipe
Sensor is spent, the ECU is connect with first temperature sensor, before the post-processing that the second temperature sensor is sent
After gas temperature signal is less than first temperature threshold, cold rear gas temperature in the first temperature sensor transmission is acquired
Signal and with second temperature threshold value comparison, when first temperature sensor transmission in it is cold after gas temperature signal be less than described in
When second temperature threshold value, the ECU, which sends control signal, reduces the rotation speed of the fan of the intercooler.
2. engine exhaust processing system according to claim 1, it is characterised in that：The control device further includes and institute
The rotational speed governor of the fan connection of intercooler is stated, the ECU is connect with the rotational speed governor, when the second temperature senses
When gas temperature signal is less than first temperature threshold before the post-processing that device is sent, the ECU, which sends control signal, reduces institute
State the rotation speed of the fan of intercooler.
3. engine exhaust processing system according to claim 2, it is characterised in that：The control device further includes and institute
The engine sensor of engine connection is stated, the ECU is connect with the engine sensor, to acquire the engine sensing
The engine rotational speed signal and distributive value signal that device is sent obtain the operating condition of presently described engine, to set up second temperature
Spend the size of threshold value.
4. a kind of engine intercooler control method for fan, it is characterised in that：Include the following steps：
S1 judges that whether gas temperature is less than the first temperature threshold before post-processing, if then carrying out step S2, if otherwise being walked
Rapid S3；
S2 reduces the rotation speed of the fan of current intercooler, the return step S1 after preset time；
S3 maintains current rotation speed of the fan；
It is further comprising the steps of when gas temperature is less than the first temperature threshold before post-processing in step S1：
S101, it is cold in judgement after gas temperature whether be less than second temperature threshold value, if then carrying out step S2, if otherwise being walked
Rapid S3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610364851.3A CN105888815B (en) | 2016-05-26 | 2016-05-26 | Engine exhaust processing system and engine intercooler control method for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364851.3A CN105888815B (en) | 2016-05-26 | 2016-05-26 | Engine exhaust processing system and engine intercooler control method for fan |
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| CN105888815A CN105888815A (en) | 2016-08-24 |
| CN105888815B true CN105888815B (en) | 2018-11-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE19948148B4 (en) * | 1999-10-07 | 2009-09-17 | Volkswagen Ag | Motor vehicle with an internal combustion engine |
| JP5289323B2 (en) * | 2006-12-22 | 2013-09-11 | ボルボ グループ ノース アメリカ インコーポレイテッド | Device for controlling exhaust temperature of diesel engine |
| KR20110002871A (en) * | 2008-05-29 | 2011-01-10 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Exhaust gas purifying system for internal combustion engine and soot filter regenerating method |
| JP2010106716A (en) * | 2008-10-29 | 2010-05-13 | Komatsu Ltd | Heat-retaining/cooling control apparatus for pm filter device |
| CN104033213A (en) * | 2013-03-07 | 2014-09-10 | 斗山工程机械（中国）有限公司 | Engineering machinery and DPF regeneration system thereof |
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