CN102345492A - Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter - Google Patents

Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter Download PDF

Info

Publication number
CN102345492A
CN102345492A CN2011102132143A CN201110213214A CN102345492A CN 102345492 A CN102345492 A CN 102345492A CN 2011102132143 A CN2011102132143 A CN 2011102132143A CN 201110213214 A CN201110213214 A CN 201110213214A CN 102345492 A CN102345492 A CN 102345492A
Authority
CN
China
Prior art keywords
soot
particulate filter
main frame
quality
model
Prior art date
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.)
Pending
Application number
CN2011102132143A
Other languages
Chinese (zh)
Inventor
R.A.厄姆克
C.J.斯塔克
S.L.梅尔比
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GM Global Technology Operations LLC
Original Assignee
GM Global Technology Operations LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GM Global Technology Operations LLC filed Critical GM Global Technology Operations LLC
Publication of CN102345492A publication Critical patent/CN102345492A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • 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
    • 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
    • F01N9/005—Electrical control of exhaust gas treating apparatus using models instead of sensors to determine operating characteristics of exhaust systems, e.g. calculating catalyst temperature instead of measuring it directly
    • 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
    • F01N2900/1606—Particle filter loading or soot amount
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

A vehicle includes an engine, a regenerable exhaust stream particulate filter, and a host machine. The host machine has a pair of soot models providing respective actual and modeled soot mass values for the soot contained in the particulate filter, calculates a ratio of a change in the actual and modeled soot masses, and executes a control action when the ratio exceeds a calibrated threshold. A diagnostic code and/or activation of an indicator device may be part of the control action. A system includes the particulate filter and host machine noted above. A method for use aboard the vehicle includes determining the actual and modeled soot mass values using first and second soot models, respectively, calculating a ratio of a change in the actual and modeled soot mass, comparing the ratio to a calibrated threshold, and executing a control action when the ratio exceeds the threshold.

Description

The apparatus and method that are used for the regeneration frequency of monitor vehicle particulate filter
Technical field
The present invention relates to be used to monitor the apparatus and method of the regeneration frequency of particulate filter, said particulate filter is suitable for from vehicle exhaust stream, removing soot.
Background technique
Particulate filter is designed to from the blast air of vehicle, remove the molecule of soot, dust, metal and other suspended material.Along with the process of time, particulate matter accumulates on the matrix in the filter.For life-span of prolonging particulate filter and further optimize the duty of engine, some filters are designed to be used in heat and optionally regenerate.
Through direct injection and fire fuel in the cylinder chamber of motor or in the filter exhaust gas stream upstream, the temperature in the particulate filter can temporarily be increased between about 450 ℃ to 600 ℃.The peak value of delivery temperature can combine suitable catalyst (for example, palladium or platinum) to use, and wherein catalyzer and heat play a role together, so that by simple exothermic oxidation process the particulate matter that gathers is reduced to the soot of relative inertness.
Summary of the invention
Particulate filter and main frame that vehicle disclosed herein comprises motor, can use heat to regenerate.The host access first soot model to be confirming the actual soot quality (for example, by the question blank of the pressure reduction index on the filter that calculates or measure) in the particulate filter, and visits the second soot model to confirm the modelling soot quality in the filter.The second soot model provides modelling soot quality about one group of current vehicle operating point or situation.Then, main frame calculates variation and the ratio of the variation in the modelling soot quality in the actual soot quality.Main frame compares ratio that calculates and calibration threshold value, and when the ratio that calculates surpasses calibration threshold value, automatically performs control action.
Said method can be embodied as can be by the algorithm of main frame execution.Through carrying out algorithm disclosed herein, main frame can be responsible for changing the filter regeneration trigger point, promptly starts particulate filter based on the coherent signal group of the regeneration of heat or the sets of signals that is generated.Main frame also can align the soot quality that after preceding filter regeneration incident, remains in the variation in the particulate filter and take in.
The ratio that suitable control action can be included in calculating is provided with first diagnostic code, launches device indicating and transmits message etc. when surpassing predetermined threshold.Owing to actual soot value and modelling soot value can change along with the vehicle operating situation, the routine monitoring method of poor situation possibly not be optimum to cover so random threshold value is set.Therefore the present invention can improve the robustness of any regeneration frequency monitoring algorithm.
A kind of system that is used on the above-mentioned vehicle also is provided.This system comprises main frame and the particulate filter that can use heat to regenerate.The host access first soot model and the second soot model; The said first soot model provides the actual soot quality that remains in the particulate filter, and the said second soot model has used one group of current vehicle operating conditions that the modelling soot that remains in filter quality is provided.Main frame also calculates variation and the ratio of the variation in the modelling soot quality in the soot quality of measurement.Then, main frame compares ratio and the calibration threshold value calculated, and when said ratio surpasses threshold value, carries out the appropriate control action.
A kind of method also is provided, and it can be embodied as algorithm and be used for above-mentioned vehicle.This method comprises uses the first soot model to confirm to remain in the actual soot quality in the particulate filter; And using the second soot model to confirm to remain in the modelling soot quality in the filter, the wherein said second soot model uses one group of current vehicle operating conditions.This method also comprises the variation and the ratio of the variation in the modelling soot quality of calculating in the actual soot quality, with said ratio and calibration threshold value relatively, and when said ratio execution control action during above calibration threshold value.
The present invention also comprises following scheme:
1. 1 kinds of vehicles of scheme comprise:
Motor;
Particulate filter, said particulate filter is collected from the particulate matter of the blast air of said motor, and can use heat to come optionally to regenerate; With
Main frame, said main frame have the first soot model and the second soot model, and wherein said first soot model and the said second soot model provide actual soot quality and the modelling soot quality that is included in the said particulate filter respectively;
Wherein, Said main frame can be operated; Be used for calculating from the variation of the just in time said actual soot quality since preceding regeneration event of said particulate filter and the ratio of the variation in the said modelling soot quality, and be used for when said ratio surpasses calibration threshold value, carrying out control action.
Scheme 2. is according to scheme 1 described vehicle; Wherein, The said first soot model carries out index between pressure reduction on the said particulate filter and said actual soot quality, and the wherein said second soot model is confirmed said modelling soot quality about the one group of current vehicle operating conditions that does not comprise the pressure reduction on the said particulate filter.
Scheme 3. is according to scheme 1 described vehicle, and wherein, as at least a portion of said control action, said main frame produces diagnostic code.
Scheme 4. is according to scheme 3 described vehicles, and wherein, as the extention of said control action, said main frame is launched device indicating.
Scheme 5. is according to scheme 1 described vehicle, and wherein, said motor is that DENG and said particulate filter are diesel particulate filters.
Scheme is used for the system that uses on the vehicle of explosive motor having for 6. 1 kinds, and said system comprises:
Particulate filter, said particulate filter is collected from the particulate matter of the blast air of said motor, and can use heat to come optionally to regenerate; With
Main frame, said main frame have the first soot model and the second soot model, and wherein said first soot model and the said second soot model provide actual soot quality and the modelling soot quality that is included in the said particulate filter respectively;
Wherein, Said main frame can be operated; Be used for calculating from the variation of the just in time said actual soot quality since preceding regeneration event of said particulate filter and the ratio of the variation in the said modelling soot quality, and be used for when said ratio surpasses calibration threshold value, carrying out control action.
Scheme 7. is according to scheme 6 described systems; Wherein, The said first soot model carries out index between pressure reduction on the said particulate filter and said actual soot quality; And wherein, the said second soot model is confirmed said modelling soot quality about the one group of vehicle operating situation that does not comprise the pressure reduction on the said particulate filter.
Scheme 8. is according to scheme 6 described vehicles, and wherein, as at least a portion of said control action, said main frame produces diagnostic code.
Scheme 9. is according to scheme 8 described vehicles, and wherein, as the extention of said control action, said main frame is launched device indicating.
Scheme 10. is according to scheme 6 described vehicles, and wherein, said motor is that DENG and said particulate filter are diesel particulate filters.
11. 1 kinds of methods that are used on vehicle, using of scheme, particulate filter and main frame that said vehicle comprises explosive motor, can use heat to regenerate, said method comprises:
Use the first soot model to confirm the actual soot magnitude in the said particulate filter;
Use the second soot model to confirm the modelling soot magnitude in the said particulate filter, the wherein said second soot model provides the soot magnitude of the estimation that is included in the said particulate filter;
Calculate variation and the ratio of the variation in the said modelling soot quality in the said actual soot quality;
Said ratio and calibration threshold value are compared; With
, carries out said ratio control action when surpassing said calibration threshold value.
Scheme 12. is according to scheme 11 described methods, and wherein, the said first soot model carries out index between pressure reduction on the said particulate filter and said actual soot magnitude.
Scheme 13. is according to scheme 12 described methods; Also comprise one group of current vehicle operating conditions confirming not comprise the pressure reduction on the said particulate filter, the wherein said second soot model is confirmed said modelling soot quality about said group current vehicle operating conditions.
Scheme 14. comprises also that according to scheme 11 described methods at least a portion as said control action produces diagnostic code.
Scheme 15. also comprises as the appendix of said control action and assigns to launch device indicating according to scheme 14 described methods.
Through to the following detailed description of the optimal mode that is used for embodiment of the present invention and combine accompanying drawing, above-mentioned characteristic of the present invention and advantage and further feature and advantage will be obvious.
Description of drawings
Fig. 1 is the schematic representation with vehicle of explosive motor and renewable particulate filter; And
Fig. 2 describes the flow chart that is used for the method for monitoring filter regeneration frequency on vehicle shown in Figure 1.
Embodiment
With reference to accompanying drawing, wherein identical reference character schematically shows vehicle 10 corresponding to identical or similar parts in Fig. 1 in whole some accompanying drawings.Vehicle 10 comprises the main frame 40 with algorithm 100, and said algorithm 100 is suitable for the regeneration frequency of the particulate filter 34 that such monitoring as mentioned below can heat regeneration, and depends on that regeneration frequency carries out control action as required.Algorithm 100 is described in detail with reference to figure 2 hereinafter.
Vehicle 10 comprises explosive motor 12 (for example, DENG or direct injection spark ignition engine), has oxidation catalyst (OC) system 13 and the speed changer 14 of particulate filter 34.Motor 12 burnings are from the fuel 16 of fuel tank 18 suctions.In a possibility embodiment; Fuel 16 is diesel fuels; Oxidation catalyst system 13 is diesel oxidation catalyst (DOC) systems, and particulate filter 34 is diesel particulate filter (DPF), but depends on that the design of motor 12 can use gasoline or other fuel type.
As stated, algorithm 100 is carried out by main frame 40, so that detect the situation that the regeneration frequency of particulate filter 34 is higher than the required threshold level of design standard, this has correspondingly been used the first soot model 50 as herein described and the second soot model 60.Particularly; As will be hereinafter with reference to figure 2 described; Main frame 40 through use measure or actual soot level with respect to respectively from the simulation of the first and second soot models 50 and 60 or the ratio calculated of the difference between the modelling soot level; And pass through the ratio and the calibration threshold value of said calculating are compared, coming directly monitoring regeneration frequency, wherein said two models confirm to remain in the soot level in the particulate filter 34 by different way.
Main frame 40 is configurable to be digital computer; It has the input/output circuitry of microprocessor or central processing unit (CPU), ROM (read-only memory) (ROM), random-access memory (ram), Electrically Erasable Read Only Memory (EEPROM), high-frequency clock, digital-to-analogue (A/D) and/or modulus (D/A) circuit, any needs and the Signal Regulation and/or the signal buffer circuit of relevant apparatus and any needs as vehicle control device and/or as proportional-integral-differential (PID) control device.The reference calibration (reference calibrations) of algorithm 100 and any needs is stored in the main frame 40, or easily by main frame 40 visits, to provide following about the described function of Fig. 2.
Vehicle 10 also comprises closure 20, and closure allows optionally that as required the fuel 16 of prearranging quatity enters into motor 12 with air.Burning by 12 pairs of fuel 16 of motor has produced blast air 22, and the vent systems of said blast air process vehicle before it finally is discharged in the ambient atmosphere is as shown in the figure.The energy that discharges through combustion fuel 16 has finally produced the moment of torsion on the input link 24 that acts on speed changer 14.Speed changer 14 will be sent to output link 26 from the moment of torsion of motor 12 then, so that by one group of wheel, 28 propelled vehicles 10, for for purpose of brevity, in Fig. 1, only show a wheel.
When blast air 22 from the exhaust port of motor 12 17 during through vehicle exhaust systems, OC system 13 cleanings as shown in Figure 1 are also regulated blast air 22.For this reason, OC system 13 can comprise oxidation catalyst 30, SCR (SCR) device 32 and above-mentioned particulate filter 34.SCR device 32 can be positioned between oxidation catalyst 30 and the particulate filter 34.As understanding in related domain, it is water and nitrogen as the inertia by product with nitrogen oxide (NOx) gas reforming that the SCR device uses active catalyst.SCR device 32 is configurable to be ceramic fragment of brick or ceramic honeycomb structure, plate structure or any other appropriate designs.
The regeneration of particulate filter 34 can be active or passive.As understanding in related domain, the additional control action that passive regeneration need not be used to regenerate.On the contrary, particulate filter substitutes silencing apparatus and is mounted, and when idling or low-power operation, particulate matter is collected on the filter.When engine exhaust temperature increases, so the material of collecting is through blast air 22 burning or oxidations.Initiative regeneration has then added external heat source, so that come together to accomplish regeneration together with extra controlling method.
Configuration howsoever, particulate filter 34 can be configured to by suitable matrix, said suitable matrix for example for pottery, screening, particulate alumina or any other for temperature with use suitable material.When the temperature of blast air 22 increased, the particulate matter that before had been captured in the particulate filter 34 burnt or oxidation through thermal exhaust, in particulate filter, to form soot.
Vehicle 10 also comprises fuel injection system 36, and it is by control signal 15 and main frame 40 electronic communications, and is communicated with fuel tank 18 fluids.When being confirmed by main frame 40, fuel injection system 36 optionally burner oil 16 enters into oxidation catalyst 30 or cylinder (not shown).Then, institute's injected fuel 16 is used for the heat levels of regenerate particulate filters 34 necessary increases with the burning of fighting of controlled way point with generation.
Still with reference to figure 1, the corresponding first and second soot models 50,60 can adopt the form of question blank and/or series of computation, and it is suitable for confirming the residue soot quality in particulate filter 34 with different corresponding manners.In one embodiment; The first soot model 50 uses the measurement of on particulate filter 34, (perhaps striding particulate filter 34) or calculates pressure reduction provides measurement or actual soot magnitude, and wherein the first soot model carries out index between pressure reduction on the particulate filter and actual soot quality.
The second soot model 60 is supplying a model soot quality by different way, has used one group of current vehicle operating conditions that is: for this reason, and does not have to use the pressure reduction on particulate filter 34.The second soot model 60 uses has described the operating point of motor 12 and the feedback signal 44 of other suitable vehicle operating data point.Such point can comprise: oxygen level; Throttle position; Engine speed; Accelerator pedal position; Fuel duty; The Engine torque of being asked; Delivery temperature; From the elapsed time that last regeneration event begins; Specific driving model, other recognition mode or the mode combinations of driving and/or confirming through monitoring parameter (for example, engine speed, engine loading, braking or the like) such as turnpike driving, urban road.
Main frame 40 also receives from the signal 11 that is positioned at each sensor 42 in the whole vehicle 10; It has described each measured value at diverse location place in OC system 13 (be included in the just in time upstream and downstream place of oxidation catalyst 30, at the just in time upstream and downstream place of particulate filter 34), for example delivery temperature, pressure, oxygen level or the like.These signals 11 are all transmitted by main frame 40, or are relayed to main frame 40.Main frame 40 is also communicated by letter with motor 12, has indicated the feedback signal 44 of power operation point with reception, and its value is used by the second soot model 60 specially, and is as mentioned below.
With reference to figure 2, execution algorithm 100 on the vehicle 10 of main frame 40 in Fig. 1 is with the regeneration frequency of monitoring particulate filter 34.Usually, main frame 40 uses the first soot model 50 to confirm to measure or actual soot quality, and wherein actual soot quality possibly embodiment be based on the pressure reduction on the particulate filter 34 according to one.Then, main frame 40 is for example through using the vehicle operating data to confirm the modelling soot quality in the particulate filter 34 with reference to the second soot model 60.Then, calculate the ratio of the variation in the actual soot quality, and said ratio is with respect to the variation in the said modelling soot quality, wherein relatively with said ratio and calibration threshold value.Main frame 40 can be carried out control action when said ratio surpasses threshold value.
Particularly, in step 102 beginning, main frame 40 at first determines whether to exist one group of initial conditions, the promptly current regeneration event of whether having ordered.Step 102 can through as get off satisfied: if main frame is configured to control regenerative process, then launch/close the regeneration triggering signal through (discrete) that detects by the separation of the inner generation of main frame; Perhaps, if dispose, then through other vehicle control device with other mode.After the detection to regeneration triggering signal or other initial conditions, algorithm 100 is advanced to step 104.
In step 104, main frame 40 is confirmed the actual soot quality in particulate filter 34.In a possibility embodiment; Main frame 40 uses sensor 42 from inlet side that is positioned at particulate filter and outlet side place (in this situation; Be configured to converter temperature or other suitable temperature sensor) signal 11 directly read or calculate the pressure reduction on particulate filter 34; And then use pressure drop to come, thereby confirm actual soot magnitude with reference to the first soot model 50.This value temporarily is recorded in the storage, and algorithm 100 is advanced to step 106.
In step 106, main frame 40 is handled feedback signal 44 needs signal 11 with the variation in the computation model soot quality with any other, and the above-mentioned second soot model 60 of wherein said modelling soot quality references is determined.This variation is at current regeneration triggering signal and just in time takes place on the time lag between the zero hour in preceding filter regeneration incident.Main frame 40 also calculates the variation in the actual soot quality in particulate filter 34 on the identical time lag, is with reference to the first soot model 50 specifically; Then, with after said two changing value placeholder records are in storage, be advanced to step 108.
In step 108; The ratio that main frame 40 calculates at the changing value that step 106 calculated; That is: in going up once the elapsed time interval of regeneration event certainly; Variation in variation in the modelling soot quality and the actual soot quality, and with this ratio placeholder record in storage, be advanced to step 110 then.
In step 110, main frame 40 will compare from the ratio and the calibration threshold value of step 108.If the ratio of record surpasses calibration threshold value, main frame 40 is advanced to step 112 so, otherwise is advanced to step 114.
In step 112, main frame 40 is provided with first diagnostic code, and said first diagnostic code representes that said ratio has surpassed calibration threshold value.This meant as a result that the soot that in particulate filter 34, possibly exist is more than what estimated through the second soot model 60, and this possibility of result is caused by air leakage or engine failure, and therefore has reason further to investigate.Can comprise at the additional control action of step 112 and to launch device indicating 38 with alert operator; Message transfer in vehicle 10; Use the vehicle remote information process unit to transmit the message to outside the vehicle; And/or take to be suitable for sending any other action that needs to check, safeguard or change the signal of particulate filter 34.
In step 114, main frame 40 is provided with the second opinion code, and said second opinion code has indicated the ratio that is calculated not surpass calibration threshold value.Algorithm 100 can continue execution so that the minimized appropriate control of variability circulates; Promptly all regeneration event must remain on minimum level of efficiency at least; Thereby, realized the robustness of algorithm to any given control system calibration and the more various control system calibrations of wide range.
Though described the optimal mode that is used for embodiment of the present invention in detail, those skilled in the art in the invention will recognize the various alternate design and the embodiment that are used for embodiment of the present invention who falls in the appended claims scope.

Claims (10)

1. vehicle comprises:
Motor;
Particulate filter, said particulate filter is collected from the particulate matter of the blast air of said motor, and can use heat to come optionally to regenerate; With
Main frame, said main frame have the first soot model and the second soot model, and wherein said first soot model and the said second soot model provide actual soot quality and the modelling soot quality that is included in the said particulate filter respectively;
Wherein, Said main frame can be operated; Be used for calculating from the variation of the just in time said actual soot quality since preceding regeneration event of said particulate filter and the ratio of the variation in the said modelling soot quality, and be used for when said ratio surpasses calibration threshold value, carrying out control action.
2. vehicle according to claim 1; Wherein, The said first soot model carries out index between pressure reduction on the said particulate filter and said actual soot quality, and the wherein said second soot model is confirmed said modelling soot quality about the one group of current vehicle operating conditions that does not comprise the pressure reduction on the said particulate filter.
3. vehicle according to claim 1, wherein, as at least a portion of said control action, said main frame produces diagnostic code.
4. vehicle according to claim 3, wherein, as the extention of said control action, said main frame is launched device indicating.
5. vehicle according to claim 1, wherein, said motor is that DENG and said particulate filter are diesel particulate filters.
6. one kind is used for the system that uses on the vehicle of explosive motor having, and said system comprises:
Particulate filter, said particulate filter is collected from the particulate matter of the blast air of said motor, and can use heat to come optionally to regenerate; With
Main frame, said main frame have the first soot model and the second soot model, and wherein said first soot model and the said second soot model provide actual soot quality and the modelling soot quality that is included in the said particulate filter respectively;
Wherein, Said main frame can be operated; Be used for calculating from the variation of the just in time said actual soot quality since preceding regeneration event of said particulate filter and the ratio of the variation in the said modelling soot quality, and be used for when said ratio surpasses calibration threshold value, carrying out control action.
7. system according to claim 6; Wherein, The said first soot model carries out index between pressure reduction on the said particulate filter and said actual soot quality; And wherein, the said second soot model is confirmed said modelling soot quality about the one group of vehicle operating situation that does not comprise the pressure reduction on the said particulate filter.
8. vehicle according to claim 6, wherein, as at least a portion of said control action, said main frame produces diagnostic code.
9. vehicle according to claim 8, wherein, as the extention of said control action, said main frame is launched device indicating.
10. method that is used on vehicle, using, particulate filter and main frame that said vehicle comprises explosive motor, can use heat to regenerate, said method comprises:
Use the first soot model to confirm the actual soot magnitude in the said particulate filter;
Use the second soot model to confirm the modelling soot magnitude in the said particulate filter, the wherein said second soot model provides the soot magnitude of the estimation that is included in the said particulate filter;
Calculate variation and the ratio of the variation in the said modelling soot quality in the said actual soot quality;
Said ratio and calibration threshold value are compared; With
, carries out said ratio control action when surpassing said calibration threshold value.
CN2011102132143A 2010-07-28 2011-07-28 Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter Pending CN102345492A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/844,991 US20120023903A1 (en) 2010-07-28 2010-07-28 Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter
US12/844991 2010-07-28

Publications (1)

Publication Number Publication Date
CN102345492A true CN102345492A (en) 2012-02-08

Family

ID=45471289

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011102132143A Pending CN102345492A (en) 2010-07-28 2011-07-28 Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter

Country Status (3)

Country Link
US (1) US20120023903A1 (en)
CN (1) CN102345492A (en)
DE (1) DE102011108238A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103628954A (en) * 2012-07-13 2014-03-12 井关农机株式会社 Soot accumulation computing and displaying device
CN104508263A (en) * 2012-06-21 2015-04-08 马克卡车公司 Method for detecting abnormally frequent diesel particulate filter regeneration, engine and exhaust after treatment system, and warning system and method
CN107208513A (en) * 2015-01-15 2017-09-26 天纳克汽车经营有限公司 For detecting the system and method that the face of exhaust aftertreatment components is blocked
CN110617135A (en) * 2018-06-19 2019-12-27 罗伯特·博世有限公司 Method for calibrating a HWL mass sensor
CN111094709A (en) * 2017-09-19 2020-05-01 标致雪铁龙汽车股份有限公司 Method for controlling a heat engine
CN116771479A (en) * 2023-08-25 2023-09-19 潍柴动力股份有限公司 Carbon loading correction method and device, electronic equipment and storage medium

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10706647B2 (en) * 2010-12-02 2020-07-07 Zonar Systems, Inc. Method and apparatus for implementing a vehicle inspection waiver program
US9080494B2 (en) 2011-06-07 2015-07-14 GM Global Technology Operations LLC Particulate filter monitoring methods and systems
US9114344B2 (en) 2012-12-12 2015-08-25 GM Global Technology Operations LLC Particulate filter regeneration management
CN107132161A (en) * 2017-06-15 2017-09-05 浙江大学 A kind of novel portable Diesel exhaust particles extracts road detection apparatus and method
DE102018106218A1 (en) * 2018-03-16 2018-07-19 FEV Europe GmbH Method for loading a particulate filter with soot
EP3791052A4 (en) * 2018-05-10 2022-01-26 Volvo Truck Corporation Method and system for assessing engine faults
JP7044084B2 (en) * 2019-03-07 2022-03-30 いすゞ自動車株式会社 Soot residual amount calculation method and soot residual amount calculation device
CN113669142B (en) * 2021-08-31 2022-12-06 东风商用车有限公司 Method and device for estimating mass flow of soot in original exhaust of engine
CN115059533B (en) * 2022-08-16 2023-01-06 潍柴动力股份有限公司 Method, device, equipment and medium for determining original soot emission of engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1548257A2 (en) * 2003-12-19 2005-06-29 Nissan Motor Co., Ltd. A regeneration system and method for a diesel particle filter
EP1679430A1 (en) * 2004-12-27 2006-07-12 Nissan Motor Company, Limited Engine control apparatus and method
US20070056271A1 (en) * 2005-09-15 2007-03-15 Berryhill Ross C Apparatus, system, and method for determining the distribution of particulate matter on a particulate filter
CN1977093A (en) * 2003-02-19 2007-06-06 万国引擎知识产权有限责任公司 Strategy employing exhaust back-pressure for burning soot trapped by a diesel particulate filter
US20090082938A1 (en) * 2005-07-15 2009-03-26 Isuzu Motors Limited Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System
US20090151330A1 (en) * 2007-12-18 2009-06-18 Ford Global Technologies, Llc Determination of diesel particulate filter load under both transient and steady state drive cycles

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859132B1 (en) * 1995-10-30 2003-01-15 Toyota Jidosha Kabushiki Kaisha Exhaust emission control apparatus for internal combustion engine
JP3225957B2 (en) * 1999-02-02 2001-11-05 トヨタ自動車株式会社 Internal combustion engine
US6615580B1 (en) * 1999-06-23 2003-09-09 Southwest Research Institute Integrated system for controlling diesel engine emissions
US6405528B1 (en) * 2000-11-20 2002-06-18 Ford Global Technologies, Inc. Method for determining load on particulate filter for engine exhaust, including estimation of ash content
JP3801135B2 (en) * 2003-01-08 2006-07-26 日産自動車株式会社 Engine exhaust gas purification device
JP3750664B2 (en) * 2003-03-07 2006-03-01 日産自動車株式会社 Engine exhaust purification system
US7031827B2 (en) * 2003-04-11 2006-04-18 Ford Global Technologies, Llc Computer algorithm to estimate particulate filter regeneration rates
US6947831B2 (en) * 2003-04-11 2005-09-20 Ford Global Technologies, Llc Pressure sensor diagnosis via a computer
JP2005090359A (en) * 2003-09-17 2005-04-07 Nissan Motor Co Ltd Regeneration control device of dpf
US7281369B2 (en) * 2004-02-27 2007-10-16 Nissan Motor Co., Ltd. Deterioration diagnosis of diesel particulate filter
JP4434038B2 (en) * 2004-04-05 2010-03-17 株式会社デンソー Exhaust gas purification device for internal combustion engine
US7412822B2 (en) * 2005-01-27 2008-08-19 Southwest Research Institute Regeneration control for diesel particulate filter for treating diesel engine exhaust
US7562524B2 (en) * 2005-09-15 2009-07-21 Cummins, Inc. Apparatus, system, and method for estimating particulate consumption
US7484357B2 (en) * 2005-09-15 2009-02-03 Cummins, Inc Apparatus, system, and method for determining and implementing estimate reliability
US7231291B2 (en) * 2005-09-15 2007-06-12 Cummins, Inc. Apparatus, system, and method for providing combined sensor and estimated feedback
US8209962B2 (en) * 2005-09-28 2012-07-03 Detroit Diesel Corporation Diesel particulate filter soot permeability virtual sensors
US8151560B2 (en) * 2005-12-06 2012-04-10 Ford Global Technologies, Llc System and method for monitoring particulate filter performance
US7533523B2 (en) * 2006-11-07 2009-05-19 Cummins, Inc. Optimized desulfation trigger control for an adsorber
US7594392B2 (en) * 2006-11-07 2009-09-29 Cummins, Inc. System for controlling adsorber regeneration
US8011180B2 (en) * 2007-08-16 2011-09-06 Ford Global Technologies, Llc Particulate filter regeneration
US7937935B2 (en) * 2008-01-28 2011-05-10 Delphi Technologies, Inc. Method for controlling catalyst and filter temperatures in regeneration of a catalytic diesel particulate filter
US7835847B2 (en) * 2008-02-28 2010-11-16 Cummins Ip, Inc Apparatus, system, and method for determining a regeneration availability profile
ATE531918T1 (en) * 2009-02-26 2011-11-15 Delphi Tech Holding Sarl METHOD FOR RESTORING AN EXHAUST GAS AFTER THE TREATMENT DEVICE
US9371754B2 (en) * 2009-03-12 2016-06-21 Caterpillar Inc. Diesel particulate filter regeneration control and method
US8464520B2 (en) * 2009-08-28 2013-06-18 Ford Global Technologies, Llc Control of diesel particulate filter regeneration duration
US8327628B2 (en) * 2009-09-29 2012-12-11 Ford Global Technologies, Llc Gasoline particulate filter regeneration and diagnostics
US8516804B2 (en) * 2010-02-26 2013-08-27 Corning Incorporated Systems and methods for determining a particulate load in a particulate filter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1977093A (en) * 2003-02-19 2007-06-06 万国引擎知识产权有限责任公司 Strategy employing exhaust back-pressure for burning soot trapped by a diesel particulate filter
EP1548257A2 (en) * 2003-12-19 2005-06-29 Nissan Motor Co., Ltd. A regeneration system and method for a diesel particle filter
EP1679430A1 (en) * 2004-12-27 2006-07-12 Nissan Motor Company, Limited Engine control apparatus and method
US20090082938A1 (en) * 2005-07-15 2009-03-26 Isuzu Motors Limited Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System
US20070056271A1 (en) * 2005-09-15 2007-03-15 Berryhill Ross C Apparatus, system, and method for determining the distribution of particulate matter on a particulate filter
US20090151330A1 (en) * 2007-12-18 2009-06-18 Ford Global Technologies, Llc Determination of diesel particulate filter load under both transient and steady state drive cycles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104508263A (en) * 2012-06-21 2015-04-08 马克卡车公司 Method for detecting abnormally frequent diesel particulate filter regeneration, engine and exhaust after treatment system, and warning system and method
CN104508263B (en) * 2012-06-21 2017-07-18 马克卡车公司 The detection abnormal frequently method of diesel particulate filter regeneration, engine and exhaust after treatment system and warning system and method
CN103628954A (en) * 2012-07-13 2014-03-12 井关农机株式会社 Soot accumulation computing and displaying device
CN103628954B (en) * 2012-07-13 2016-03-16 井关农机株式会社 Coal smoke piles up operation display device
CN107208513A (en) * 2015-01-15 2017-09-26 天纳克汽车经营有限公司 For detecting the system and method that the face of exhaust aftertreatment components is blocked
CN107208513B (en) * 2015-01-15 2019-12-10 天纳克汽车经营有限公司 System and method for detecting face blockage of an exhaust aftertreatment component
CN111094709A (en) * 2017-09-19 2020-05-01 标致雪铁龙汽车股份有限公司 Method for controlling a heat engine
CN110617135A (en) * 2018-06-19 2019-12-27 罗伯特·博世有限公司 Method for calibrating a HWL mass sensor
CN116771479A (en) * 2023-08-25 2023-09-19 潍柴动力股份有限公司 Carbon loading correction method and device, electronic equipment and storage medium
CN116771479B (en) * 2023-08-25 2023-11-17 潍柴动力股份有限公司 Carbon loading correction method and device, electronic equipment and storage medium

Also Published As

Publication number Publication date
US20120023903A1 (en) 2012-02-02
DE102011108238A1 (en) 2012-02-02

Similar Documents

Publication Publication Date Title
CN102345492A (en) Apparatus and method for monitoring regeneration frequency of a vehicle particulate filter
US9091190B2 (en) Accumulated ash correction during soot mass estimation in a vehicle exhaust aftertreatment device
US9140156B2 (en) NOx-flowrate and temperature correction during soot mass estimation in a vehicle exhaust after-treatment device
US8608835B2 (en) Exhaust gas purification system for an internal combustion engine
JP4325367B2 (en) Exhaust temperature sensor failure detection device
CN105264189B (en) Gas exhaust treatment generation control system and its method
CN102365432B (en) System and method for filtering diesel engine exhaust particulates
US8186146B2 (en) After-treatment component detection system
JP2010150936A (en) Method for diagnosing regeneration failure of exhaust emission control device
CN102374000B (en) Vehicle oxidation catalyst efficiency model for adaptive control and diagnostics
JP4591389B2 (en) Exhaust purification device for internal combustion engine
CN107630734A (en) System and method for the monitoring of vehicle oxidation catalyst
US20120031080A1 (en) Method and apparatus for predicting peak temperature in a vehicle particulate filter
CN111537412B (en) Emission monitoring device, system and method
US9376952B2 (en) Method and system for selectively enabling and disabling a diagnostic monitor of a selective-catalytic-reduction device
JP2007170360A (en) Exhaust purifier of internal combustion engine
CN102015073B (en) Exhaust treatment system implementing regeneration control
US20090306850A1 (en) System for monitoring DPF using wireless communication
CN101907013A (en) Use the regenerative system that is used for particulate filter and the method for virtual brick temperature sensors
US20130125529A1 (en) Method for controlling regeneration within an after-treatment component of a compression-ignition engine
JP2006214438A (en) Regeneration management system for working machine
JP4226007B2 (en) Exhaust gas purification device used for internal combustion engine and method for operating the exhaust gas purification device
JP4636278B2 (en) Exhaust gas purification device for internal combustion engine
JP6056267B2 (en) Engine exhaust purification system
Ball et al. Experience of continuously regenerating particulate traps on city buses in Europe

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120208