JP2019044759A - ディーゼルエンジンの粒子フィルタ内に堆積した粒子の量を評価するための方法、システムおよびコンピュータ製品 - Google Patents
ディーゼルエンジンの粒子フィルタ内に堆積した粒子の量を評価するための方法、システムおよびコンピュータ製品 Download PDFInfo
- Publication number
- JP2019044759A JP2019044759A JP2018024568A JP2018024568A JP2019044759A JP 2019044759 A JP2019044759 A JP 2019044759A JP 2018024568 A JP2018024568 A JP 2018024568A JP 2018024568 A JP2018024568 A JP 2018024568A JP 2019044759 A JP2019044759 A JP 2019044759A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- combustion
- particle
- mass
- engine
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 32
- 239000002245 particle Substances 0.000 claims description 160
- 238000002485 combustion reaction Methods 0.000 claims description 88
- 230000008929 regeneration Effects 0.000 claims description 81
- 238000011069 regeneration method Methods 0.000 claims description 81
- 238000000151 deposition Methods 0.000 claims description 75
- 230000008021 deposition Effects 0.000 claims description 73
- 239000000446 fuel Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000004590 computer program Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 4
- 239000004071 soot Substances 0.000 description 15
- 230000002123 temporal effect Effects 0.000 description 11
- 239000011449 brick Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 238000013179 statistical model Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012041 precatalyst Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2409—Addressing techniques specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/448—Auxiliary equipment or operation thereof controlling filtration by temperature measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- 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
- F01N9/002—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
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/007—Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D41/0245—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus by increasing temperature of the exhaust gas leaving the engine
-
- 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
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
- F02D41/1467—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content with determination means using an estimation
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- 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
- F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
- F01N2550/04—Filtering activity of particulate filters
-
- 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
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0418—Methods of control or diagnosing using integration or an accumulated value within an elapsed period
-
- 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
- F01N2900/0601—Parameters used for exhaust control or diagnosing being estimated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1602—Temperature of exhaust gas apparatus
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
- F02D2200/0804—Estimation of the temperature of the exhaust gas treatment apparatus
-
- 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
-
- 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
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- 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
-
- 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)
Abstract
Description
(Hexh,in−L − Hexh,out−L)×dt + PHC×dt +Psoot×dt = dEbrick−L + Pair−L×dt (1)
(式中、Hexh,in−LおよびHexh,out−Lは、排気ガスフィルターからのインレットエンタルピーおよびアウトレットエンタルピーをそれぞれ表し、PHCは、未燃焼炭化水素の燃焼により放出された熱出力を表し、Psootは、粒子の燃焼により放出された熱出力を表し、dEbrick−Lは、時点dtでのフィルタの内部エネルギーの無限小増加を表し、Pair−Lは、対流に起因してフィルタにより空気に伝達された出力を表す。)
(Hexh,in−E − Hexh,out−E)×dt + PHC×dt +Psoot×dt = dEbrick−E + Pair−E×dt (2)
Psoot = (dEbrick−L − dEbrick−E)/dt + (Pair−L − Pair−E) + (Hexh,out−L − Hexh,out−E) (3)
Psoot = dEbrick−E/dt +Pair − (Hexh,in − Hexh,out) −PHC (4)
瞬間的に燃焼した粒子状物質の量(dMb,r(t))が閾値未満に低下していること。これは、フィルタ13内でもはや燃焼がなく、従って、再生成ステップのさらなる延長は、燃料消費を増やしてエンジンオイルの劣化を増やす効果を有するのみであろうことを示している。および/または
フィルタの下流側の温度T6とモデル化温度T6_modの差の経時的な導関数が、特定の閾値未満に存在しており、同時に、フィルタの下流側の温度T6とモデル化温度T6_modの差が、特定の限界値以下であること。これは、フィルタの下流側の温度T6が、フィルタ内で粒子の燃焼がない場合にフィルタが有しているであろう温度T6_modと整合されているので、フィルタ内で発熱過程はもはや生じていないことを示している。
Claims (12)
- ディーゼルエンジンシステムを制御するための方法であって、
前記ディーゼルエンジンシステムは、エンジンの排気ラインに挿入された粒子フィルタと、前記エンジンのシリンダと関連付けられた複数の燃料噴射器を制御するための電子エンジン制御ユニットとを備えるタイプのものであり、
前記粒子フィルタ内の推定堆積粒子質量が、予め定められた閾値に達した場合、前記粒子フィルタに送られた排気ガスの温度が、前記粒子フィルタ内の粒子を燃焼させるのに十分に上昇することにより、前記複数の燃料噴射器の制御モードが起動されて、前記粒子フィルタの自動再生成ステップの開始が引き起こされ、
前記推定堆積粒子質量は、エンジン動作条件に基づく第1のマップに従って計算される推定瞬間堆積粒子質量の合計として計算され、
前記方法は、前記自動再生成ステップ中、
前記粒子フィルタの状態を示す値を受信する段階と、
前記粒子フィルタの前記状態を示す前記値の関数として、実瞬間燃焼粒子質量を計算する段階と、
前記実瞬間燃焼粒子質量を合計する段階と、
前記実瞬間燃焼粒子質量の前記合計の、かつ、前記推定瞬間堆積粒子質量の前記合計の関数として、理論値と実際値との間の誤差を表す一時的補正係数を計算する段階と、
第2のマップに含まれる、前記一時的補正係数の関数としての少なくとも1つの補正係数と、堆積ステップ中に生じたエンジン動作条件とを更新する段階と
を備え、
前記方法は、前記堆積ステップ中、
前記第1のマップおよび前記エンジン動作条件に従って計算された前記推定瞬間堆積粒子質量を、前記第2のマップおよび前記エンジン動作条件に従って計算された補正係数により乗算する段階
をさらに備える、
方法。 - 前記電子エンジン制御ユニットのリセットまたは初回開始に続いて、各補正係数の単一値を前記第2のマップに格納する段階を備える、
請求項1に記載の方法。 - 前記少なくとも1つの補正係数を更新する前記段階は、前記一時的補正係数を前記第2のマップの前記少なくとも1つの補正係数により乗算する段階を有する、
請求項1または2に記載の方法。 - 前記実瞬間燃焼粒子質量が第2の予め定められた閾値未満であること、および
フィルタアウトレット温度と、燃焼が生じない場合に前記粒子フィルタが有しているであろう温度の差が、第3の予め定められた閾値未満であり、かつ、前記差の導関数が第4の予め定められた閾値未満に存在し、前記フィルタアウトレット温度および前記温度が、前記粒子フィルタの前記状態を示す前記値に含まれること
という条件のうちの少なくとも一方が所与の期間満たされた場合に前記自動再生成ステップを中断する段階を備える、
請求項1から3のいずれか一項に記載の方法。 - 前記粒子フィルタ内での粒子燃焼を得るために経験的に必要とみなされる時間を示す期間が経過した場合、前記自動再生成ステップを中断する段階は可能である、
請求項4に記載の方法。 - 前記実瞬間燃焼粒子質量の前記合計を、前記フィルタアウトレット温度と、燃焼が生じない場合に前記粒子フィルタが有しているであろう前記温度との関数として計算されるその補正係数を合計することにより、補正する段階を備える、
請求項4または5に記載の方法。 - 前記補正係数は、前記自動再生成ステップの開始時および終了時における、前記フィルタアウトレット温度と、燃焼が生じない場合に前記粒子フィルタが有しているであろう前記温度の前記差の平均値の関数として計算される、
請求項6に記載の方法。 - 前記粒子フィルタの前記状態を示す1または複数の値は、
前記粒子フィルタの上流側の温度センサ、
前記粒子フィルタの下流側の温度センサ、
周囲温度センサ、
前記エンジンの速度を決定するセンサ、および
前記粒子フィルタを通る排気ガスの流れを測定するセンサ
のうちの少なくとも1つを用いて受信される、
請求項1から7のいずれか一項に記載の方法。 - 前記実瞬間燃焼粒子質量は、粒子燃焼により放出される熱出力および前記粒子のより低い加熱値の関数として、好ましくは、前記粒子燃焼により放出される前記熱出力と前記粒子の前記より低い加熱値との間の比として、計算される、
請求項1から8のいずれか一項に記載の方法。 - 前記粒子燃焼により放出される前記熱出力は、
前記粒子フィルタの内部エネルギーの無限小増加と、対流に起因して前記粒子フィルタにより空気に伝達される前記熱出力と、前記自動再生成ステップ中に燃焼が生じた場合および燃焼が生じなかった場合に前記粒子フィルタを出た排気ガスのエンタルピーとを示す値に従って、好ましくは前記値の差の関数として、計算されるか、または
内部で燃焼が生じなかった前記粒子フィルタの前記内部エネルギーの前記無限小増加と、対流に起因して前記粒子フィルタにより前記空気に伝達される前記熱出力と、前記粒子の燃焼により放出される前記熱出力と、前記粒子フィルタを出た前記排気ガスの前記エンタルピーと前記粒子フィルタに入った前記排気ガスの前記エンタルピーの差とを示す値に従って、計算される、
請求項9に記載の方法。 - エンジン排気ラインに挿入された粒子フィルタと、
エンジンシリンダと関連付けられた燃料噴射器の電子制御ユニットであって、請求項1から10のいずれか一項に記載の方法の前記段階を実行する電子制御ユニットと
を備える、自動車用のディーゼルエンジンシステム。 - 少なくとも1つの電子制御ユニットに請求項1から10のいずれか一項に記載の方法を実行させるためのコンピュータプログラム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17189343.1 | 2017-09-05 | ||
EP17189343.1A EP3450714B1 (en) | 2017-09-05 | 2017-09-05 | A method, system and computer product for evaluating the quantity of particulate accumulated with a particulate filter of a diesel engine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019044759A true JP2019044759A (ja) | 2019-03-22 |
JP6672577B2 JP6672577B2 (ja) | 2020-03-25 |
Family
ID=60042947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018024568A Active JP6672577B2 (ja) | 2017-09-05 | 2018-02-14 | ディーゼルエンジンの粒子フィルタ内に堆積した粒子の量を評価するための方法、システムおよびコンピュータ製品 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10495016B2 (ja) |
EP (1) | EP3450714B1 (ja) |
JP (1) | JP6672577B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018203858A1 (de) * | 2018-03-14 | 2019-09-19 | Ford Global Technologies, Llc | Verfahren zum Anpassen von Feinstaubmesswerten |
EP4001601B1 (de) * | 2020-11-16 | 2024-04-03 | Robert Bosch GmbH | Verfahren zur bestimmung einer russmasse zum beladen und/oder einer russmasse für eine regeneration eines partikelfilters mithilfe maschineller lernverfahren |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4103813B2 (ja) * | 2004-02-02 | 2008-06-18 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
EP2963271B1 (en) * | 2014-06-18 | 2017-01-11 | Fiat Group Automobiles S.p.A. | System and method for estimating the quantity of particulate accumulated in the particulate filter of a diesel engine |
JP6384196B2 (ja) * | 2014-08-20 | 2018-09-05 | いすゞ自動車株式会社 | 排気浄化装置の再生装置 |
-
2017
- 2017-09-05 EP EP17189343.1A patent/EP3450714B1/en active Active
-
2018
- 2018-02-08 US US15/892,149 patent/US10495016B2/en active Active
- 2018-02-14 JP JP2018024568A patent/JP6672577B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20190072050A1 (en) | 2019-03-07 |
EP3450714A1 (en) | 2019-03-06 |
JP6672577B2 (ja) | 2020-03-25 |
EP3450714B1 (en) | 2019-10-09 |
US10495016B2 (en) | 2019-12-03 |
BR102018003187A2 (pt) | 2019-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1544432B1 (en) | Regeneration control of diesel particulate filter | |
US9890684B2 (en) | Method of operating an exhaust gas aftertreatment | |
JP6325089B2 (ja) | 排気処理再生制御システム | |
EP1529931A1 (en) | Filter control device | |
US20160123259A1 (en) | Method for the operation of an exhaust-gas treatment system, device for controlling an exhaust-gas treatment system, exhaust-gas treatment system, engine control unit, and internal combustion engine having an exhaust-gas treatment system | |
JP2010090899A (ja) | 微粒子フィルタ中に堆積された微粒子量の見積もりに基づく微粒子フィルタの再生活性化方法 | |
JP5168089B2 (ja) | 触媒の診断装置 | |
EP2963271B1 (en) | System and method for estimating the quantity of particulate accumulated in the particulate filter of a diesel engine | |
JP5510684B2 (ja) | 内燃機関の制御装置 | |
CN107208517B (zh) | 排气净化系统和NOx净化能力恢复方法 | |
RU2641325C2 (ru) | Способ регенерации сажевого фильтра | |
JP6741162B2 (ja) | 内燃機関の排気中の窒素酸化物の排出量を制御するための方法 | |
JP6672577B2 (ja) | ディーゼルエンジンの粒子フィルタ内に堆積した粒子の量を評価するための方法、システムおよびコンピュータ製品 | |
WO2015181602A1 (en) | Exhaust gas control apparatus of internal combustion engine | |
WO2016117516A1 (ja) | 排気浄化システム及び触媒再生方法 | |
GB2523990A (en) | Method of controlling a diesel particulate filter | |
JP6418014B2 (ja) | 排気浄化システム | |
JP5247555B2 (ja) | エンジン制御装置 | |
WO2016190315A1 (ja) | 排気浄化装置、制御装置、及び制御方法 | |
JP6455237B2 (ja) | 排気浄化システム | |
JP7079725B2 (ja) | エンジン作業機 | |
WO2016117568A1 (ja) | 排気浄化システム及びNOx浄化能力回復方法 | |
BR102018003187B1 (pt) | Método e sistema para avaliar a quantidade de particulado acumulado dentro de um filtro de particulado de um motor diesel | |
JP5168071B2 (ja) | フィルタ故障検出装置 | |
JP2016133062A (ja) | 排気浄化システム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190308 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20191128 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191203 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200122 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200204 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200214 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6672577 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |