EP1537313A1 - Procede pour determiner la quantite de gaz d'echappement a recycler pour un moteur a combustion interne a recyclage des gaz d'echappement - Google Patents

Procede pour determiner la quantite de gaz d'echappement a recycler pour un moteur a combustion interne a recyclage des gaz d'echappement

Info

Publication number
EP1537313A1
EP1537313A1 EP03807804A EP03807804A EP1537313A1 EP 1537313 A1 EP1537313 A1 EP 1537313A1 EP 03807804 A EP03807804 A EP 03807804A EP 03807804 A EP03807804 A EP 03807804A EP 1537313 A1 EP1537313 A1 EP 1537313A1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
temperature
gas recirculation
model
fresh
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.)
Withdrawn
Application number
EP03807804A
Other languages
German (de)
English (en)
Inventor
Christian Barba
Martin Dietz
Günter Moll
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1537313A1 publication Critical patent/EP1537313A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/0065—Specific aspects of external EGR control
    • F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/45—Sensors specially adapted for EGR systems
    • F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
    • F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/02—Intercooler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04—Cooling of air intake supply
    • F02B29/0406—Layout of the intake air cooling or coolant circuit
    • F02B29/0437—Liquid cooled heat exchangers
    • 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
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0402—Engine intake system parameters the parameter being determined by using a model of the engine intake or its components
    • 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
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0414—Air temperature
    • 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
    • F02D41/0002—Controlling intake air
    • F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
    • 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
    • F02D41/1446—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 exhaust temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/02—EGR systems specially adapted for supercharged engines
    • F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
    • F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • 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

Definitions

  • FIG. 3 shows a block diagram of an overall model for determining a fresh gas temperature
  • This deviation is preferably defined as the difference between input variables U ⁇ 6 .3i and reference input variables u ⁇ e .3i 0 .
  • it can also be a quotient of input variables u 16 . 3 i and reference input variables U ⁇ S . 3 i 0 can be defined.
  • the reference input variables u 16 . 3 i 0 are determined in a basic reference variable map 16.4, to which the speed n and the fuel quantity ⁇ i fuel are preferably supplied as input variables.
  • FIG. 5 shows a block diagram of an overall model 17 for determining the temperature of the recirculated exhaust gas, which is also referred to as an exhaust gas recirculation model.
  • the structure of the model corresponds to the fresh gas temperature model 15.
  • an exhaust gas temperature T ⁇ b g as which represents the output variable of the function block 16 (explained in more detail in FIG. 4), is converted from a mass flow of the recirculated exhaust gas dm EGR / dt , also called exhaust gas recirculation mass flow for short, and from further input variables u 17 relevant for the temperature of the recirculated exhaust gas.
  • the input variables U ⁇ 7 . 3 i are preferably a cooling water temperature of the internal combustion engine and / or an ambient temperature.
  • the correction model 17.3 has its own model.
  • Correction model 17.3 is therefore a group of correction models.
  • Each input variable is also 7 . 3 ⁇ an output variable y ⁇ 7 . 3 i assigned to the correction model 17.3.
  • the correction values or the correction value y ⁇ 7 . 3 i become at a connection point 17.2 to the basic cooling y ⁇ 7 . ⁇ to form a corrected cooling y ⁇ 7 . 2 added. Instead of an addition, a multiplication can also take place at the junction if this appears advantageous.
  • the corrected cooling yi 7 is a connection point 17.2 to the basic cooling y ⁇ 7 . ⁇ to form a corrected cooling y ⁇ 7 . 2 added.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

L'invention concerne un procédé permettant de déterminer la quantité de gaz d'échappement à recycler pour un moteur à combustion interne à recyclage des gaz d'échappement. La quantité de gaz d'échappement à recycler (rAGR, mAGR) est déterminée sur la base d'une température de gaz d'échappement (Tgazéchap.), d'une température de gaz frais (mair2) et/ou d'une consommation d'air (θ). La température de gaz frais (mair2) est déterminée à l'aide d'un modèle de température de gaz frais (15), adapté de manière adaptative à des paramètres d'influence pertinents en termes de température de gaz frais.
EP03807804A 2002-09-12 2003-08-26 Procede pour determiner la quantite de gaz d'echappement a recycler pour un moteur a combustion interne a recyclage des gaz d'echappement Withdrawn EP1537313A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10242234A DE10242234B4 (de) 2002-09-12 2002-09-12 Verfahren zur Bestimmung einer Abgasrückführmenge für einen Verbrennungsmotor mit Abgasrückführung
DE10242234 2002-09-12
PCT/EP2003/009414 WO2004033880A1 (fr) 2002-09-12 2003-08-26 Procede pour determiner la quantite de gaz d'echappement a recycler pour un moteur a combustion interne a recyclage des gaz d'echappement

Publications (1)

Publication Number Publication Date
EP1537313A1 true EP1537313A1 (fr) 2005-06-08

Family

ID=31895849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03807804A Withdrawn EP1537313A1 (fr) 2002-09-12 2003-08-26 Procede pour determiner la quantite de gaz d'echappement a recycler pour un moteur a combustion interne a recyclage des gaz d'echappement

Country Status (4)

Country Link
US (1) US7174250B2 (fr)
EP (1) EP1537313A1 (fr)
DE (1) DE10242234B4 (fr)
WO (1) WO2004033880A1 (fr)

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FR2885175B1 (fr) * 2005-04-28 2010-08-13 Renault Sas Procede de commande d'un moteur de vehicule mettant en oeuvre un reseau de neurones
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DE102005047240A1 (de) * 2005-10-01 2007-04-05 Daimlerchrysler Ag Verfahren zur Korrektur von Messwerten
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FR2910934B1 (fr) * 2006-12-27 2009-01-30 Renault Sas Procede d'estimation et systeme de controle du taux d'egr sur un moteur suralimente par un turbocompresseur et equipe de deux collecteurs d'admission et d'un volet de swirl.
DE102007007945A1 (de) 2007-02-17 2008-08-21 Daimler Ag Verfahren zum Einstellen einer Abgasrückführrate einer Brennkraftmaschine
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US7614231B2 (en) * 2007-04-09 2009-11-10 Detroit Diesel Corporation Method and system to operate diesel engine using real time six dimensional empirical diesel exhaust pressure model
DE112007003446B4 (de) 2007-04-26 2026-03-19 FEV Europe GmbH Regelungssystem zur Regelung der Abgasrückführrate mittels virtuellem NOx-Sensors mit Adaption über einen NOx-Sensor
JP4881222B2 (ja) * 2007-05-17 2012-02-22 シェブロンジャパン株式会社 ガソリンエンジンの内面部品の洗浄方法
US20090049897A1 (en) * 2007-08-24 2009-02-26 Olin Peter M Method for on-line adaptation of engine volumetric efficiency using a mass air flow sensor
FR2931892B1 (fr) * 2008-05-28 2010-08-20 Renault Sas Procede d'estimation du debit de recirculation des gaz d'echappement sur un moteur bi-plenum avec volet de turbulence
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Also Published As

Publication number Publication date
US20060167613A1 (en) 2006-07-27
DE10242234B4 (de) 2006-03-23
DE10242234A1 (de) 2004-03-25
WO2004033880A1 (fr) 2004-04-22
US7174250B2 (en) 2007-02-06

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