EP1134390A2 - Méthode et dispositif pour la commande d'un moteur à combustion - Google Patents

Méthode et dispositif pour la commande d'un moteur à combustion Download PDF

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Publication number
EP1134390A2
EP1134390A2 EP00125559A EP00125559A EP1134390A2 EP 1134390 A2 EP1134390 A2 EP 1134390A2 EP 00125559 A EP00125559 A EP 00125559A EP 00125559 A EP00125559 A EP 00125559A EP 1134390 A2 EP1134390 A2 EP 1134390A2
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
fuel
size
injected
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
Application number
EP00125559A
Other languages
German (de)
English (en)
Other versions
EP1134390A3 (fr
EP1134390B1 (fr
Inventor
Andreas Huber
Peter Skala
Horst Wagner
Michael Scheidt
Dirk Samuelsen
Ruediger Fehrmann
Markus Jung
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1134390A2 publication Critical patent/EP1134390A2/fr
Publication of EP1134390A3 publication Critical patent/EP1134390A3/fr
Application granted granted Critical
Publication of EP1134390B1 publication Critical patent/EP1134390B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
    • F02D31/001—Electric control of rotation speed
    • F02D31/007—Electric control of rotation speed controlling fuel supply
    • 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
    • F02D41/0215—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission
    • F02D41/0225—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission in relation with the gear ratio or shift lever position
    • 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
    • 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
    • F02D41/1454—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 an oxygen content or concentration or the air-fuel ratio
    • F02D41/1456—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 an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
    • 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
    • F02D2041/1413—Controller structures or design
    • F02D2041/1422—Variable gain or coefficients
    • 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
    • F02D41/0275—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 NOx trap or adsorbent
    • 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

Definitions

  • the invention relates to a method and a device for controlling an internal combustion engine according to the generic terms of independent claims.
  • a method and a device for controlling the speed is known for example from DE 195 27 218.
  • This regulation / control influences the speed of the internal combustion engine, where depending on at least one speed value Size that is injected into the internal combustion engine Fuel quantity determined, is specified.
  • exhaust gas treatment concepts include, among other things so-called NOx storage catalytic converters and particle filters.
  • Such exhaust gas aftertreatment systems require interventions in the fuel injection.
  • the injection quantity, the start of spraying and the distribution of the injection quantity a pre-injection, a main injection and possibly one Post injection depending on the control of the exhaust gas aftertreatment system divided up.
  • the exhaust gas aftertreatment system the air supply to the internal combustion engine in the Meaning a reduction in the amount of air or a reduction of the lambda value of the exhaust gas.
  • Such an exhaust gas aftertreatment system is, for example known from DE 195 47 646. There is additional fuel metered, the additional fuel in the exhaust aftertreatment system contributes to the reduction of nitrogen oxides.
  • Interventions in the control of the exhaust gas aftertreatment system can have a huge impact on speed control, because in this case the basic requirement for the controller, that the amount is proportional to the torque, not or no longer in the same way as in the normal operating state the internal combustion engine is satisfied.
  • a simple shutdown on the one hand the speed controller can become a considerable one Loss of comfort and on the other hand to increased exhaust emissions to lead.
  • DE 40 28 809 (US 5,313,855) is a system known in which several subsystems on the fuel metering act. This is done in individual subsystems assigned different priorities.
  • the impairment can be caused by the procedure according to the invention comfort through the intervention of the exhaust gas aftertreatment system be significantly reduced.
  • the effects interventions by other systems on fuel injection on the speed control can be significantly reduced become.
  • Knowledge of the intervention of the exhaust gas aftertreatment system or other systems on fuel metering are in the correction in the speed controller not mandatory. That is, the causes of the impairment need not be known for the speed controller.
  • FIG. 1 shows a block diagram of the device and figure according to the invention 2 shows a flowchart of the procedure according to the invention.
  • the procedure according to the invention is illustrated using the example of a Exhaust gas treatment system described.
  • the exhaust aftertreatment system intervenes in the quantity and / or air control such that the relationship between injected Fuel quantity and torque is no longer constant.
  • the procedure according to the invention is not for this application limited. It can also be used with other systems perform an appropriate intervention.
  • FIG a block diagram An internal combustion engine is designated 100. There is a speed sensor 105 on this arranged.
  • the internal combustion engine 100 is operated via a quantity adjuster 110 metered fuel.
  • the fuel metering takes place depending on a quantity distribution 115 that controls the flow controller 110.
  • the quantity distribution 115 processes the output signal of a node 120 at its first input the output signal of a node 125 is present.
  • At the first input of the connection point 125 is the output signal of a driver's request determination 130, which as an input variable at least that Output signal of an accelerator pedal encoder 135 is supplied.
  • This accelerator pedal encoder 135 provides a signal that the driver's request characterized.
  • an accelerator pedal also an e-gas system or other means that have a signal deliver that characterizes the driver's request used become.
  • a speed controller 140 which is from the output signal N of the speed sensor 105 is applied.
  • a volume compensation scheme is provided his.
  • speed controller 140 is in the same sense understand that based on a speed signal a Fuel quantity is determined as a manipulated variable.
  • the speed controller 140 can also be designed as a controller his.
  • the air control 145 acts an air plate 120, which is supplied to the internal combustion engine Air volume affects.
  • exhaust gas aftertreatment 150 other systems can connect the amount of fuel and / or affect the amount of air.
  • the functioning of these elements is usually known.
  • the driver gives a driver request via the accelerator pedal 135 before that of the driver's request determination 130 in a Amount of fuel is implemented.
  • the quantity distribution 115 divides this amount of fuel into at least one partial injection on. In normal operation, the total amount of fuel preferably metered by means of a partial injection. At newer systems can be provided to minimize noise injection in certain operating states divided into a pre-injection and a main injection becomes.
  • the speed controller 140 ensures that the speed does not drop below a minimum speed. Also includes the speed controller 140 different functions, such as a bucking damper, a smoothness control or a volume compensation control.
  • the speed controllers are usually 140 designed such that a certain manipulated variable, the one corresponds to a certain amount of fuel, a certain change in torque on the internal combustion engine.
  • Newer systems are with an exhaust gas aftertreatment system 150 equipped.
  • an exhaust gas aftertreatment system 150 equipped.
  • the control of the internal combustion engine so that the Air number lambda is less than 1.
  • part of the fuel is unburned in the exhaust tract arrives and reacts there in the exhaust gas aftertreatment system.
  • the speed controller 140 inject an increased amount of fuel.
  • the exact Quantity specification by the speed controller is only possible if the exact relationships of the exhaust gas aftertreatment system and the mode of action is known.
  • penetration a size that is referred to below as penetration. This is the ratio between torque and injection quantity.
  • the standardized penetration D results from dividing the penetration by one Value of the penetration that is in normal operation. As Normal operation becomes the normal operating state of the diesel engine with excess air, i.e. with a lambda value larger designated as 1. Below is the standardized penetration referred to as quantity penetration D.
  • the normalized volume penetration takes D values less than 1.
  • the value D 0. This means that the speed controller has no more effect on the torque. This corresponds to one Separation of the speed control loop.
  • the speed controller the flow through D.
  • the consideration of the quantity penetration D is independent of what the cause of the changed flow through goes back.
  • the volume penetration D assumes the value 1. It is particularly advantageous, even if the values are negligible are less than 1, normal operation takes place. This means that in a first range of values of the flow through normal operation takes place.
  • the speed controller switched off or frozen in a suitable manner. Especially It is advantageous if controllers with integral behavior such as for example, in the volume compensation scheme or Smooth running control the I component of the controller is frozen. It is particularly advantageous, even if the values are negligible Corresponding measures have been taken to be greater than 0. This means that in a second range of values Flow control of the speed controller 140 is switched off.
  • the speed controller over the injection quantity one more Momentary intervention.
  • this can be compared to normal operation be weakened.
  • a quantitative penetration determination 160 the speed controller 140 with a corresponding signal D acted upon.
  • the quantity penetration determination 160 receives signals from a lambda sensor 165 and / or from the quantity distribution 115.
  • the quantity penetration D is based on the air ratio lambda.
  • a Sensor 165 can be used. But it is also possible that Air ratio calculated from the target injection quantity and the To determine the amount of fresh air. Furthermore, the air ratio Lambda determined using a model from other input variables become.
  • D ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
  • the speed controller 140 takes into account the flow through D by adjusting the control parameters. To get through the interventions the exhaust gas aftertreatment 150 in particular for the speed controller to avoid critical situations if possible it is provided according to the invention that a signal to the Exhaust aftertreatment 150 is transmitted, which ensures that a passage of quantities is made possible again. This can done by the exhaust aftertreatment 150 engaging withdraws as quickly as possible, or an intended one No intervention.
  • a signal from the accelerator pedal position transmitter 135 and signals from further sensors 175 priority setting 170 acts on the exhaust gas aftertreatment 150 a corresponding priority signal.
  • a clutch switch is provided, the speed control of the internal combustion engine guaranteed in the disengaged state.
  • FIG. 2 is a flow diagram of the procedure according to the invention shown.
  • a first step 200 the standardized quantity penetration D is determined. For example in that the relationship is in a map between a lambda value calculated using a Lambda sensor is detected and the value D is stored.
  • Query 215 recognizes that quantity penetration D is not equal Is zero, flag M also becomes in step 225 set to zero. Furthermore, in step 125 various measures have been initiated to reduce the To compensate for volume penetration. I.e. in particular the gain of the proportional component increases.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP20000125559 2000-01-29 2000-11-22 Méthode et dispositif pour la commande d'un moteur à combustion Expired - Lifetime EP1134390B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000104001 DE10004001A1 (de) 2000-01-29 2000-01-29 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10004001 2000-01-29

Publications (3)

Publication Number Publication Date
EP1134390A2 true EP1134390A2 (fr) 2001-09-19
EP1134390A3 EP1134390A3 (fr) 2002-06-12
EP1134390B1 EP1134390B1 (fr) 2006-02-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000125559 Expired - Lifetime EP1134390B1 (fr) 2000-01-29 2000-11-22 Méthode et dispositif pour la commande d'un moteur à combustion

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EP (1) EP1134390B1 (fr)
DE (2) DE10004001A1 (fr)
ES (1) ES2257994T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044411A1 (de) * 2000-09-08 2002-03-21 Bayerische Motoren Werke Ag Verfahren zur Steuerung eines Verbrennungsmotors bei einem Regenerationszyklus
DE10252988B3 (de) * 2002-11-14 2004-06-09 Siemens Ag Verfahren zur Ermittlung der Einspritzmenge einer Brennkraftmaschine
DE10315814A1 (de) * 2003-04-07 2004-10-21 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
JP4154596B2 (ja) * 2003-06-02 2008-09-24 三菱自動車工業株式会社 内燃機関の排気浄化装置
US8903575B2 (en) 2011-06-03 2014-12-02 General Electric Company Methods and systems for air fuel ratio control
DE102013021523A1 (de) * 2013-12-13 2015-07-02 Mtu Friedrichshafen Gmbh Verfahren zur Drehzahlregelung einer Brennkraftmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028809A1 (de) 1990-09-11 1992-03-12 Bosch Gmbh Robert System zur steuerung eines kraftfahrzeugs
DE19527218A1 (de) 1994-12-23 1996-06-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Regelung der Laufruhe einer Brennkraftmaschine
DE19547646A1 (de) 1995-12-20 1997-06-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729771A1 (de) * 1987-09-05 1989-03-16 Bosch Gmbh Robert Verfahren und einrichtung zur kraftstoffzumessung bei einer diesel-brennkraftmaschine
JP2762350B2 (ja) * 1995-06-23 1998-06-04 株式会社ゼクセル ディーゼルエンジンのアイドル回転制御装置及び方法
US5931138A (en) * 1996-02-23 1999-08-03 Nissan Motor Co., Ltd. Engine torque control apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028809A1 (de) 1990-09-11 1992-03-12 Bosch Gmbh Robert System zur steuerung eines kraftfahrzeugs
US5313855A (en) 1990-09-11 1994-05-24 Robert Bosch Gmbh System for the open-loop control of a motor vehicle
DE19527218A1 (de) 1994-12-23 1996-06-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Regelung der Laufruhe einer Brennkraftmaschine
DE19547646A1 (de) 1995-12-20 1997-06-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Also Published As

Publication number Publication date
EP1134390A3 (fr) 2002-06-12
ES2257994T3 (es) 2006-08-16
DE50012250D1 (de) 2006-04-27
DE10004001A1 (de) 2001-08-02
EP1134390B1 (fr) 2006-02-22

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