CN102588054A - Exhaust gas purification device for working machine - Google Patents
Exhaust gas purification device for working machine Download PDFInfo
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- CN102588054A CN102588054A CN2012100077324A CN201210007732A CN102588054A CN 102588054 A CN102588054 A CN 102588054A CN 2012100077324 A CN2012100077324 A CN 2012100077324A CN 201210007732 A CN201210007732 A CN 201210007732A CN 102588054 A CN102588054 A CN 102588054A
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- differential pressure
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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
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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
- F02D41/029—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 the exhaust gas treating apparatus being a particulate filter
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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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
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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
- F02D2200/0812—Particle filter loading
Abstract
Disclosed is an exhaust gas purification system for a working machine, which can realize forced regeneration without being affected by abrupt variations of a body. The device is provided with a filter (20) for capturing PM contained in exhaust gas from an engine (10), a differential pressure sensor (21) for detecting a differential pressure between an upstream side and an downstream side of the filter (20), and a controller (22) having a regeneration determination unit (22a) for determining whether or not a time, at which forced regeneration is needed, has been reached. The controller (22) includes one that has a variation determination unit (22b) for determining whether or not a state quantity relevant to an operation of the engine (10), for example, an engine speed N has varied abruptly and that, when the engine speed N is determined to have abruptly varied, performs processing to invalidate the determination by the regeneration determination unit (22a) during a predetermined time T in which an effect of the engine speed N is considered to diminish.
Description
Technical field
The present invention relates to a kind of being configured on the engineering machinery such as hydraulic shovel; The Exhaust gas purifying device of engineering machinery with filter of the particulate matter (Particulate Matter: particulate material is called " PM " below) that is contained in the exhaust of removing motor.
Background technique
As this existing technology, the content of being put down in writing in the patent documentation 1 (TOHKEMY 2005-307878 communique) is arranged.This existing technology possesses the differential pressure detector of catching the filter, delivery temperature detector of the PM that is contained in the exhaust of motor in the exhaust downstream and detecting the differential pressure between the exhaust upstream and downstream of filter.And; Possess controller, this controller has the operational part of computing extraction flow and judges the regeneration detection unit of the time that whether arrives the forced regeneration that need make the PM burning that filter captures through the differential pressure that relatively detected by differential pressure detector with as the judgement differential pressure of decision threshold.
In having the existing technology of this formation; According to the relation between the reference temperature of delivery temperature that in the delivery temperature detector, detects and exhaust; With the regeneration detection unit of controller relatively the detected detection differential pressure of differential pressure detector Δ P is converted into the value under the reference temperature and the Δ P1 that obtains and corresponding to by the extraction flow of the operational part computing of controller as the size between the judgement differential pressure Δ P2 of the threshold value under the reference temperature; If Δ P1＞Δ P2 then is judged to be and need carries out forced regeneration.
Forced regeneration is to point to burner oil in the exhaust of motor, utilizes the oxidation reaction of being undertaken by oxidation catalyst that delivery temperature is risen, and with being deposited in the PM burning in the filter and removing, the mesh that can remove filter in view of the above stops up.
Yet with regard to above-mentioned existing Exhaust gas purifying device, if rapid fuel injection amount changes or gettering quantity vehicles such as truck with low uncertainty, extraction flow constantly is stable, for above-mentioned judgement differential pressure Δ P2, can calculate suitable value.But, as the present invention towards the engineering machinery such as hydraulic shovel of object, the rapid change of the vehicle of load variations, rotation change etc. is more, the extraction flow that calculates in the time of at that time also has bigger variation.Thereby, the situation of suitable judgement differential pressure Δ P2 possibly take place to calculate.Therefore; When existing technology is applicable to engineering machinery; Judge that differential pressure Δ P2 is after the regeneration detection unit of controller is judged if use; Even then in fact do not piling up on the filter under the state of so much PM, also can be judged to be Δ P1＞Δ P2, under situation unnecessary, may carry out forced regeneration.This useless forced regeneration causes unhelpful fuel to spray, and the milimeter number that every liter of fuel is gone worsens.
Summary of the invention
The present invention is in view of above-mentioned actual conditions of the prior art and proposing, and its purpose is to provide a kind of Exhaust gas purifying device of engineering machinery of forced regeneration of the rapid change influence that can realize having got rid of vehicle body.
In order to reach this purpose; The Exhaust gas purifying device of engineering machinery of the present invention; Be configured in and possess apparatus for work, the vehicle body main body of this apparatus for work is installed and is arranged on this vehicle body main body and drives on the engineering machinery of motor of above-mentioned apparatus for work; The differential pressure detector of the differential pressure of the exhaust upstream and downstream that the Exhaust gas purifying device of above-mentioned engineering machinery possesses the filter of catching particulate matter contained in the discharge gas of above-mentioned motor in the exhaust downstream, detect this filter and having through relatively judging the controller of the regeneration detection unit of the time that whether arrives the forced regeneration that need make the particulate matter burning that captures by above-mentioned filter by the detected differential pressure of this differential pressure detector with as the judgement differential pressure of decision threshold; The Exhaust gas purifying device of above-mentioned engineering machinery is characterised in that; Above-mentioned controller has the quantity of state relevant with the running of above-mentioned motor of judgement whether variation detection unit jumpy has taken place; And constitute; Be judged to be above-mentioned quantity of state by this variation detection unit when rapid change has taken place, think scheduled time that the influence of above-mentioned quantity of state tails off during in carry out the judgement of being undertaken by above-mentioned regeneration detection unit is become invalid processing.
The present invention is conceived to when vehicle body generation rapid change, and the quantity of state generation rapid change of the engine speed relevant with the running of motor, fuel injection amount etc. proposes.The present invention is judged to be the quantity of state relevant with the running of motor when corresponding to the rapid change of vehicle body rapid change having taken place at the variation detection unit by controller; Think scheduled time that the influence jumpy of quantity of state tails off during in; Make by judging that the judgement that the judgement regeneration portion whether carry out forced regeneration carries out becomes invalid processing the processing that the decision-making function of regeneration detection unit is stopped by controller.The above-mentioned scheduled time is considered on the corresponding engineering machinery contingent load variations and according to experiment or rule of thumb set.Thus, the present invention can realize getting rid of the forced regeneration of the influence jumpy of vehicle body.That is, can suppress to implement unnecessary forced regeneration.
And; The present invention is characterised in that in foregoing invention, above-mentioned controller have the computing extraction flow first operational part and based on the extraction flow that calculates by first operational part and in this controller predefined expression extraction flow and judge that the figure of the relation of differential pressure comes second operational part of the above-mentioned judgement differential pressure of computing.
And; The present invention is characterised in that in foregoing invention; Be provided with the fuel control device that control supplies to the fuel injection amount of above-mentioned motor; And above-mentioned control device has the fuel injection amount indication portion of the control signal of the above-mentioned fuel control device of output control; Possess detect the gettering quantity supply to above-mentioned motor and with testing signal output to above-mentioned controller the gettering quantity detector, detect inhalation temperature and testing signal outputed to the inhalation temperature detector of above-mentioned controller and detects the delivery temperature of above-mentioned motor and testing signal outputed to the delivery temperature detector of above-mentioned controller; Above-mentioned controller has air-breathing weight operational part and exhaust weight operational part; Above-mentioned air-breathing weight operational part comes the air-breathing weight of computing based on air-breathing density with by the detected gettering quantity of above-mentioned gettering quantity detector; Above-mentioned air-breathing density be according to by the detected inhalation temperature of above-mentioned inhalation temperature detector and in this controller the figure of the relation of predefined expression inhalation temperature and air-breathing density obtain; Above-mentioned exhaust weight operational part comes computing exhaust weight based on the air-breathing weight that is calculated by this air-breathing weight operational part with by the fuel injection amount of above-mentioned fuel injection amount indication portion indication; Above-mentioned first operational part of above-mentioned controller carries out the processing of computing extraction flow based on exhaust density with by the exhaust weight that above-mentioned exhaust weight operational part calculates, and above-mentioned exhaust density is based on by the detected delivery temperature of above-mentioned delivery temperature detector with in this controller that the figure of the relation of predefined expression delivery temperature and exhaust density obtains.
And; The present invention is characterised in that in foregoing invention; Possess the rotating speed that detects above-mentioned motor and testing signal is outputed to the engine speed detector of above-mentioned controller, the quantity of state relevant with the running of above-mentioned motor be the engine speed that detected by above-mentioned engine speed detector, by the fuel injection amount of above-mentioned fuel injection amount indication portion indication, by the gettering quantity of above-mentioned gettering quantity detector detection and by at least one of the extraction flow of the above-mentioned first operational part computing of above-mentioned controller.
The present invention is in having the engineering machinery of apparatus for work; Controller has the quantity of state relevant with the running of motor of judgement whether variation detection unit jumpy has taken place; And constitute when being judged to be quantity of state by this variation detection unit when rapid change has taken place, think scheduled time that the influence of quantity of state tails off during in carry out the judgement of being undertaken by the regeneration detection unit is become invalid processing.Constitute according to this, can realize having got rid of the forced regeneration of the influence jumpy of vehicle body.That is, suppress to implement to follow the rapid change of vehicle body and incidental unnecessary forced regeneration prevents the injection of unhelpful fuel, improve the milimeter number that every liter of fuel in the Work machine that is configured in Exhaust gas purifying device goes thus.
Description of drawings
Fig. 1 is the profile of the hydraulic shovel of enumerating as an example of engineering machinery of the mode of execution of expression with Exhaust gas purifying device of the present invention.
Fig. 2 is the figure of formation of the Exhaust gas purifying device of this mode of execution that hydraulic shovel had shown in the presentation graphs 1.
Fig. 3 is the module map that the major component of the expression controller that this mode of execution had constitutes.
Fig. 4 is the figure of the expression characteristic that can be obtained by this mode of execution.
Among the figure:
1-runner (vehicle body main body), 2-solid of rotation (vehicle body main body), 3-apparatus for work, 6-engine compartment, 10-motor; The compressor of 12-turbosupercharger, the turbine of 14-turbosupercharger, 20-filter, 21-differential pressure detector, 22-controller; The 22a-detection unit of regenerating, 22b-changes detection unit, 22c-first operational part, 22d-second operational part, 22e-fuel injection amount indication portion; The air-breathing weight operational part of 22f-, 22g-exhaust weight operational part, 23-gettering quantity detector, 24-inhalation temperature detector, 25-fuel control device; The 26-engine speed detector, 27-delivery temperature detector, 28-fuel injection system, A-load, N-engine speed; Δ P-detects differential pressure, and Δ Po-judges differential pressure, Δ N-actual speed variable quantity, and Δ N1-judges the rotation speed change amount.
Embodiment
Below, according to the example of the Exhaust gas purifying device of description of drawings engineering machinery of the present invention.
As shown in Figure 1, the hydraulic shovel that constitutes engineering machinery possesses runner 1 and is configured in the solid of rotation 2 on this runner 1.Constitute the vehicle body main body by these runneies 1 with solid of rotation 2.And, this hydraulic shovel possess above-below direction be installed on the solid of rotation 2 revolvably and have shear leg, arm etc. apparatus for work 3, be arranged on operator cabin 4 on the solid of rotation 2, guarantee the counterweight 5 of weight balancing and be configured in operator cabin 4 and counterweight 5 between engine compartment 6.
And; As shown in Figure 2, this hydraulic shovel possesses the motor 10 that is accommodated in engine compartment 6, remove that air filter 11, compression that the air that is inhaled into engine compartment 6 promptly sucks airborne dust are purified by this air filter 11 and by the compressor 12 of the turbosupercharger of the suction air of air intake passage 30 guiding, will be directed to the air intake passage 31,32 of motor 10 by the suction air after these compressor 12 compressions and be configured in air intake passage 31 and air intake passage 32 between and cooling supply to the intercooler 13 of the suction air of motor 10.And, this hydraulic shovel possess guiding motor 10 exhausting air turbosupercharger turbine 14 and exhaust passage 33, the part of the exhausting air of motor 10 is refluxed and supply to the return flow line 34,35 of motor 10 once more and be configured between these return flow lines 34 and the return flow line 35 and cooling supplies to EGR (exhaust gas recirculation) cooler 15 of the exhausting air of motor 10.
As shown in Figure 2, the Exhaust gas purifying device with this mode of execution of this formation possesses the differential pressure detector 21 of catching the filter 20 of PM contained in the exhausting air of motor 10 in the exhaust downstream and detecting the differential pressure between the exhaust upstream and downstream of this filter 20.And; This mode of execution possesses controller 22; This controller 22 has regeneration detection unit 22a; Detection unit 22a is as shown in Figure 3 in regeneration, and the differential pressure that is relatively detected by differential pressure detector 21 promptly detects differential pressure Δ P and judges the time that whether arrives the forced regeneration that need make the PM burning that is captured by filter 20 with judgement differential pressure Δ Po as decision threshold.Be judged to be arrival with regeneration detection unit 22a the time of forced regeneration need be carried out the time; As shown in Figure 3; Export control signals by controller 22 to fuel injection system 28, by the fuel of these fuel injection system 28 injection prearranging quatitys, in the discharge gas that is blended into motor 10.
As shown in Figure 2, the amount that this mode of execution possesses the suction gas that detect to import air intake passage 30 be gettering quantity and with testing signal output to controller 22 gettering quantity detector 23, detect the temperature that sucks gas and testing signal outputed to the inhalation temperature detector 24 of controller 22 and detects the temperature of the discharge gas that imports exhaust passage 33 and testing signal outputed to the delivery temperature detector 27 of controller 22.
And; As shown in Figure 3, this mode of execution possesses the engine speed detector 26 that outputs to controller 22 according to the rotating speed of the fuel control device 25 of being controlled the fuel injection amount that supplies to motor 10 by the control signal of the fuel injection amount indication 22e of portion output contained in the controller 22 and detection of engine 10 and with testing signal.
This mode of execution is as shown in Figure 3; Controller 22 has the detection unit of variation 22b; Change detection unit 22b and judge the quantity of state relevant with the running of motor 10; Whether the engine speed that is for example detected by engine speed detector 26 rapid change takes place; When being judged to be engine speed by this variation detection unit 22b when rapid change has taken place, think scheduled time that the influence jumpy of engine speed tails off during in, invalidation is carried out in the judgement of being undertaken by above-mentioned regeneration detection unit 22a.
Judgement rotation speed change amount Δ N1 as the threshold value jumpy that is used for judging engine speed is stored in controller 22.Change that detection unit 22b compares to determine rotation speed change amount Δ N1 and based on the checkout value of engine speed detector 26 and the actual speed variation delta N of computing, when Δ N＞Δ N1, be judged to be engine speed rapid change has taken place.
And the above-mentioned scheduled time is to consider the variation of vehicle bodies such as contingent load variations, rotation change in the hydraulic shovel shown in Fig. 1 and set according to experiment or experience.
As shown in Figure 3, controller 22 possess computing extraction flow Vex the first operational part 22c, based on the extraction flow Vex that calculates by this first operational part 22c and in controller 22 figure of the relation between a plurality of extraction flows of predefined expression and a plurality of judgement differential pressure come computing to judge the second operational part 22d of differential pressure Δ Po.
And; Controller 22 possesses air-breathing weight operational part 22f; Air-breathing weight operational part 22f based on air-breathing density f 2 and by gettering quantity detector 23 detected gettering quantity Vin come the air-breathing weight Gin of computing (=f2 * Vin), above-mentioned air-breathing density f 2 be according to by inhalation temperature detector 24 detected inhalation temperature Tin and in controller 22 figure of the relation of a plurality of inhalation temperatures of predefined expression and a plurality of air-breathing density obtain.
And controller 22 possesses the exhaust weight operational part 22g that comes computing exhaust weight Gex (Gin+q) based on the air-breathing weight Gin that is calculated by air-breathing weight operational part 22f with by the fuel injection amount q of the above-mentioned fuel injection amount indication 22e of portion indication.
The first operational part 22c of above-mentioned controller 22 handles as follows: based on exhaust density f 3 and by the exhaust weight Gex that exhaust weight operational part 22g calculates come computing extraction flow Vex (=Gex/f3); Wherein, above-mentioned exhaust density f 3 be according to by delivery temperature detector 27 detected delivery temperature Tex and in controller 22 figure of the relation of a plurality of delivery temperatures of predefined expression and a plurality of exhaust density obtain.And above-mentioned regeneration detection unit 22a judges whether arrive the time that above-mentioned needs carry out forced regeneration based on the judgement differential pressure Δ Po that calculates according to the extraction flow Vex that is calculated by the first operational part 22c and by the second operational part 22d with by differential pressure detector 21 detected detection differential pressure Δ P.
This mode of execution that so constitutes; As shown in the detection range S1 of Fig. 4; When loading the high speed rotating that A is more stable, engine speed N maintenance is certain; The actual speed variation delta N that calculates based on the checkout value that is detected by engine speed detector 26 judges that promptly Δ N≤Δ N1 is judged to be engine speed rapid change does not take place in the variation detection unit 22b of controller 22 below the rotation speed change amount Δ N1.Therefore, whether regeneration detection unit 22a function as usual arrives the judgement of the time of the forced regeneration that need make the PM burning that is captured by filter 20, promptly relatively detects differential pressure Δ P and the judgement of judging differential pressure Δ Po.
In this regeneration detection unit 22a, if be judged to be Δ P≤Δ Po, then be judged to be the time that not arrival need be carried out forced regeneration, do not export the control signal that makes fuel injection system 28 actions.And, in regeneration detection unit 22a,, then being judged to be the time that arrival need be carried out forced regeneration if be judged to be Δ P＞Δ Po, fuel injection system 28 is such as stated to be implemented fuel is blended into the injection in the discharge gas of motor 10.In view of the above, utilize the effect of oxidation catalyst, the temperature of discharging gas rises, and by the PM burning that filter 20 captures, the mesh of eliminating filter 20 stops up.
And; In the variation detection unit 22b of controller 22; As representing among the detection range S2 of Fig. 4; When load A generation rapid change, when engine speed for example sharply descends; The actual speed variation delta N that calculates based on the checkout value of revolution detector 26 can promptly become Δ N＞Δ N1 greater than judging rotation speed change amount Δ N1, in controller 22, carries out preestablishing and thinks that will regenerate in the scheduled time T that the influence jumpy of engine speed the tails off determination processing of detection unit 22a becomes invalid processing.
According to this mode of execution of formation like this, can get rid of the influence that the rapid change of engine speed N causes, i.e. the forced regeneration of the influence that causes of the rapid change of solid of rotation 2, runner 1.That is, can suppress to be accompanied by the rapid change of solid of rotation 2, runner 1 and incidental unnecessary forced regeneration can prevent that unhelpful fuel from spraying.In view of the above, can improve the milimeter number that every liter of fuel in the hydraulic shovel that possesses Exhaust gas purifying device goes.
At this; In the above-described embodiment; Though the relevant quantity of state of the running with motor 10 as the variation detection unit 22b by controller 22 judges has been enumerated engine speed N; But the gettering quantity Vin that this quantity of state can also be the fuel injection amount q that indicates among the fuel injection amount indication 22e of portion by controller 22, detected by gettering quantity detector 23, or by the extraction flow Vex of the first operational part 22c computing etc.And, also can judge a plurality of quantity of states in these quantity of states by changing detection unit 22b.
Claims (4)
1. the Exhaust gas purifying device of an engineering machinery; Be configured in and possess apparatus for work; The vehicle body main body of this apparatus for work is installed; Be arranged on this vehicle body main body and drive on the engineering machinery of motor of above-mentioned apparatus for work; The Exhaust gas purifying device of above-mentioned engineering machinery possesses the filter of catching particulate matter contained in the discharge gas of above-mentioned motor in the exhaust downstream; Detect the differential pressure detector of differential pressure of the exhaust upstream and downstream of this filter; And have through relatively judging the controller of the regeneration detection unit of the time that whether arrives the forced regeneration that need make the particulate matter burning that captures by above-mentioned filter by the detected differential pressure of this differential pressure detector with as the judgement differential pressure of decision threshold; The Exhaust gas purifying device of above-mentioned engineering machinery is characterised in that
Above-mentioned controller has the quantity of state relevant with the running of above-mentioned motor of judgement whether variation detection unit jumpy has taken place; And constitute; Be judged to be above-mentioned quantity of state by this variation detection unit when rapid change has taken place, think scheduled time that the influence of above-mentioned quantity of state tails off during in carry out the judgement of being undertaken by above-mentioned regeneration detection unit is become invalid processing.
2. the Exhaust gas purifying device of engineering machinery according to claim 1 is characterized in that,
Above-mentioned controller have the computing extraction flow first operational part and based on the extraction flow that calculates by first operational part and in this controller predefined expression extraction flow and judge that the figure of the relation of differential pressure comes second operational part of the above-mentioned judgement differential pressure of computing.
3. the Exhaust gas purifying device of engineering machinery according to claim 2 is characterized in that,
Be provided with the fuel control device of fuel injection amount that control supplies to above-mentioned motor, and above-mentioned control device has the fuel injection amount indication portion of the control signal of the above-mentioned fuel control device of output control,
Possess detect the gettering quantity supply to above-mentioned motor and with testing signal output to above-mentioned controller the gettering quantity detector, detect inhalation temperature and testing signal outputed to the inhalation temperature detector of above-mentioned controller and detects the delivery temperature of above-mentioned motor and testing signal outputed to the delivery temperature detector of above-mentioned controller
Above-mentioned controller has air-breathing weight operational part and exhaust weight operational part,
Above-mentioned air-breathing weight operational part comes the air-breathing weight of computing based on air-breathing density with by the detected gettering quantity of above-mentioned gettering quantity detector; Above-mentioned air-breathing density be according to by the detected inhalation temperature of above-mentioned inhalation temperature detector and in this controller the figure of the relation of predefined expression inhalation temperature and air-breathing density obtain
Above-mentioned exhaust weight operational part comes computing exhaust weight based on the air-breathing weight that is calculated by this air-breathing weight operational part with by the fuel injection amount of above-mentioned fuel injection amount indication portion indication,
Above-mentioned first operational part of above-mentioned controller carries out the processing of computing extraction flow based on exhaust density with by the exhaust weight that above-mentioned exhaust weight operational part calculates, and above-mentioned exhaust density is based on by the detected delivery temperature of above-mentioned delivery temperature detector with in this controller that the figure of the relation of predefined expression delivery temperature and exhaust density obtains.
4. the Exhaust gas purifying device of engineering machinery according to claim 3 is characterized in that,
Possess the rotating speed that detects above-mentioned motor and testing signal outputed to the engine speed detector of above-mentioned controller,
The quantity of state relevant with the running of above-mentioned motor is the engine speed that detected by above-mentioned engine speed detector, the gettering quantity that detects by the fuel injection amount of above-mentioned fuel injection amount indication portion indication, by above-mentioned gettering quantity detector and by at least one of the extraction flow of the above-mentioned first operational part computing of above-mentioned controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-004960 | 2011-01-13 | ||
| JP2011004960A JP2012145056A (en) | 2011-01-13 | 2011-01-13 | Exhaust gas purification system for working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102588054A true CN102588054A (en) | 2012-07-18 |
Family
ID=45440422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100077324A Pending CN102588054A (en) | 2011-01-13 | 2012-01-11 | Exhaust gas purification device for working machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120180459A1 (en) |
| EP (1) | EP2495420A3 (en) |
| JP (1) | JP2012145056A (en) |
| KR (1) | KR20120082340A (en) |
| CN (1) | CN102588054A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013347A (en) * | 2017-06-07 | 2017-08-04 | 北京工业大学 | A kind of ONLINE RECOGNITION method of diesel exhaust gas flow |
| WO2020103306A1 (en) * | 2018-11-20 | 2020-05-28 | 章礼道 | Ai air conditioning system realizing real-time closed-loop control through high-sensitivity temperature and humidity meter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6358909B2 (en) * | 2014-09-25 | 2018-07-18 | 株式会社クボタ | Work vehicle |
| CN106323843B (en) * | 2016-11-17 | 2023-11-17 | 中国三冶集团有限公司 | Dust remover cloth bag fault detector and detection method thereof |
| CN107675739B (en) * | 2017-09-15 | 2020-07-17 | 安徽合矿环境科技股份有限公司 | Counter weight automatic movement excavator |
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- 2011-01-13 JP JP2011004960A patent/JP2012145056A/en active Pending
- 2011-12-28 KR KR1020110144464A patent/KR20120082340A/en not_active Application Discontinuation
-
2012
- 2012-01-03 EP EP12150080A patent/EP2495420A3/en not_active Withdrawn
- 2012-01-04 US US13/343,219 patent/US20120180459A1/en not_active Abandoned
- 2012-01-11 CN CN2012100077324A patent/CN102588054A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030230077A1 (en) * | 2002-06-14 | 2003-12-18 | Tsukasa Kuboshima | Exhaust gas cleaning system having particulate filter |
| CN2769529Y (en) * | 2003-01-07 | 2006-04-05 | 中国环境科学研究院 | Diesel engine exhaust particulate filter electric heating regeneration automatic controlling system |
| CN1532381A (en) * | 2003-03-25 | 2004-09-29 | 三菱扶桑卡客车公司 | Waste gas purifying system and waste gas purifying method |
| JP4365724B2 (en) * | 2004-04-22 | 2009-11-18 | 日産ディーゼル工業株式会社 | Exhaust purification equipment |
| CN1734067A (en) * | 2004-08-10 | 2006-02-15 | 日产自动车株式会社 | The reckoning of particulate matter deposit amount in the diesel soot filter |
| US20070044459A1 (en) * | 2005-09-01 | 2007-03-01 | Denso Corporation | Exhaust gas purifying apparatus for internal combustion engine |
| CN101636562A (en) * | 2007-09-25 | 2010-01-27 | 日立建机株式会社 | Exhaust purification system for construction machine |
| CN101688451A (en) * | 2008-02-08 | 2010-03-31 | 三菱重工业株式会社 | Dpf sedimentation amount estimation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013347A (en) * | 2017-06-07 | 2017-08-04 | 北京工业大学 | A kind of ONLINE RECOGNITION method of diesel exhaust gas flow |
| WO2020103306A1 (en) * | 2018-11-20 | 2020-05-28 | 章礼道 | Ai air conditioning system realizing real-time closed-loop control through high-sensitivity temperature and humidity meter |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2495420A3 (en) | 2012-09-12 |
| EP2495420A2 (en) | 2012-09-05 |
| JP2012145056A (en) | 2012-08-02 |
| US20120180459A1 (en) | 2012-07-19 |
| KR20120082340A (en) | 2012-07-23 |
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Application publication date: 20120718 |