WO2022014388A1 - Dispositif de commande pour moteur à combustion interne - Google Patents

Dispositif de commande pour moteur à combustion interne Download PDF

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Publication number
WO2022014388A1
WO2022014388A1 PCT/JP2021/025265 JP2021025265W WO2022014388A1 WO 2022014388 A1 WO2022014388 A1 WO 2022014388A1 JP 2021025265 W JP2021025265 W JP 2021025265W WO 2022014388 A1 WO2022014388 A1 WO 2022014388A1
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WO
WIPO (PCT)
Prior art keywords
control mode
intake
amount
internal combustion
value
Prior art date
Application number
PCT/JP2021/025265
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English (en)
Japanese (ja)
Inventor
敦 岡崎
Original Assignee
いすゞ自動車株式会社
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Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to CN202180039392.0A priority Critical patent/CN115698491A/zh
Publication of WO2022014388A1 publication Critical patent/WO2022014388A1/fr

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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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
    • F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
    • F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
    • 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
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • 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

  • the present invention relates to a control device for an internal combustion engine.
  • the internal combustion engine mounted on the vehicle has an EGR device for recirculating a part of the exhaust gas.
  • the EGR device adjusts, for example, the opening degree of a valve provided in the EGR passage to adjust the amount of exhaust gas recirculated to the internal combustion engine. Further, the EGR device controls to adjust the valve opening degree based on the intake amount of the intake air of the internal combustion engine and the emission amount of NOx in order to suppress the emission amount of NOx in the exhaust gas (hereinafter referred to as EGR control). Call).
  • an aftertreatment device for example, a catalyst for purifying the exhaust gas is provided in the exhaust passage, and a temperature rise control mode for raising the temperature of the catalyst is executed in order to activate the catalyst.
  • the characteristics of intake and exhaust in the temperature rise control mode are different from the characteristics of intake and exhaust in the normal control mode other than the temperature rise control mode. Therefore, if EGR control similar to that in the normal control mode is performed in the temperature rise control mode, NOx emission may not be appropriately suppressed.
  • the present invention has been made in view of these points, and an object thereof is to perform EGR control with high accuracy in different control modes.
  • the control mode of the internal combustion engine is a temperature rise control mode for raising the temperature of the aftertreatment device for purifying the exhaust gas of the internal combustion engine or a normal control mode other than the temperature rise control mode.
  • the mode determination unit for determination and, when the normal control mode is determined, estimate the first intake amount, which is the intake amount of the internal combustion engine, using the first value of the intake parameter, and use the temperature rise control mode. If it is determined, the intake amount estimation unit that estimates the second intake amount using a second value different from the first value of the intake parameter, and if it is determined to be the normal control mode, the exhaust gas is discharged.
  • the first emission amount which is the NOx emission amount in the exhaust gas
  • the first value of the parameter is estimated using the first value of the parameter, and when the temperature rise control mode is determined, the first value different from the first value of the exhaust parameter is determined.
  • the NOx estimation unit that estimates the second emission amount using two values
  • the intake amount and NOx emission amount estimated by the intake amount estimation unit and the NOx estimation unit according to the control mode determined by the mode determination unit.
  • an internal combustion engine control device including an EGR control unit that controls an EGR device that recirculates a part of the exhaust gas.
  • the intake amount estimation unit estimates the first intake amount using the first value of the estimated volumetric efficiency of the internal combustion engine main body, and the second value smaller than the first value of the estimated volume efficiency is used. 2
  • the intake amount may be estimated.
  • the intake intake amount estimation unit estimates the first intake amount using the first value of the estimated volumetric efficiency obtained by using the rotation speed of the internal combustion engine main body and the fuel injection amount, and the estimated volumetric efficiency.
  • the second intake amount may be estimated using the second value.
  • the NOx estimation unit estimates the first emission amount using the first value of the environmental condition coefficient indicating the combustion state of the internal combustion engine main body, and uses the second value smaller than the first value of the environmental condition coefficient.
  • the second emission amount may be estimated.
  • the NOx estimation unit estimates the first emission amount using the first value of the environmental condition coefficient obtained by using the fuel injection timing, the temperature of the cooling water, and the temperature of the intake air, and the NOx estimation unit estimates the first emission amount of the environmental condition coefficient.
  • the second value may be used to estimate the second emission amount.
  • the mode determination unit may determine whether or not the temperature rise control mode is based on the temperature of the cooling water for cooling the internal combustion engine and the temperature of the exhaust gas. Further, when the temperature of the cooling water and the temperature of the exhaust gas are higher than the predetermined values, the mode determination unit determines that the temperature rise control mode is used, and determines that the temperature of the cooling water and the exhaust gas are higher than the predetermined values. When the temperature is lower than the predetermined value, it may be determined that the normal control mode is used.
  • FIG. 1 is a schematic diagram for explaining the configuration of the internal combustion engine 1 according to the embodiment.
  • the internal combustion engine 1 is, for example, a multi-cylinder engine mounted on a vehicle such as a truck.
  • the internal combustion engine 1 is a diesel engine, but is not limited to this, and may be, for example, a gasoline engine.
  • the internal combustion engine 1 includes an engine main body 10, a fuel injection device 15, an intake passage 20, an exhaust passage 30, a turbocharger 40, an EGR device 50, and a control device 100.
  • the engine body 10 has four cylinders 12 here, but is not limited thereto. Movable parts such as pistons and crankshafts are provided in each cylinder 12.
  • the fuel injection device 15 is an injection device that injects fuel into the combustion chamber in the engine body 10.
  • the fuel injection device 15 is a common rail type fuel injection device here, and has an injector 16 and a common rail 17.
  • the injector 16 injects fuel into the combustion chamber in each cylinder 12.
  • the common rail 17 stores the fuel injected from the injector 16 in a high pressure state.
  • the intake passage 20 is a passage through which intake air to be sucked into the engine body 10 flows.
  • the intake passage 20 has an intake manifold 22 connected to the engine body 10 and an intake pipe 23 connected to the upstream end of the intake manifold 22.
  • the intake manifold 22 distributes and supplies the intake air sent from the intake pipe 23 to the intake ports of each cylinder.
  • the intake pipe 23 is provided with an air cleaner 24, an air flow meter 25, a compressor 42C of a turbocharger 40, an intercooler 27, and an intake throttle valve 28.
  • the air flow meter 25 detects the amount of intake air per unit time of the internal combustion engine 1, that is, the intake flow rate.
  • the exhaust passage 30 is a passage through which the exhaust gas generated from the engine body 10 flows.
  • the exhaust passage 30 has an exhaust manifold 32 connected to the engine body 10 and an exhaust pipe 33 connected to the downstream end of the exhaust manifold 32.
  • the exhaust manifold 32 collects the exhaust gas sent from the exhaust port of each cylinder.
  • the exhaust pipe 33 is provided with a turbine 42T of the turbocharger 40 and an aftertreatment device 35.
  • the aftertreatment device 35 is a device for purifying the exhaust gas, and includes, for example, an oxidation catalyst, a DPF, an SCR, and an ammonia oxidation catalyst.
  • a control mode for raising the temperature of the aftertreatment device 35 (specifically, the catalyst) at an early stage from the cold start of the internal combustion engine 1 to the completion of warming up (hereinafter referred to as a temperature rise control mode).
  • the characteristics of intake and exhaust in the temperature rise control mode are different from the characteristics of intake and exhaust in the normal control mode other than the temperature rise control mode.
  • the turbocharger 40 is a supercharger that compresses the intake air flowing through the intake passage 20 by utilizing the flow of exhaust gas flowing through the exhaust passage 30.
  • the turbocharger 40 has a turbine 42T provided in the exhaust passage 30 and a compressor 42C provided in the intake passage 20.
  • the turbine 42T is located on the engine body 10 side of the aftertreatment device 35 in the exhaust passage 30.
  • the EGR device 50 recirculates a part of the exhaust gas to the engine body 10. Specifically, the EGR device 50 uses a part of the exhaust gas (hereinafter referred to as EGR gas) in the exhaust passage 30 (here, the exhaust manifold 32) in the intake passage 20 (here, the intake manifold 22). (Inside).
  • EGR gas a part of the exhaust gas
  • the EGR device 50 includes an EGR passage 52, an EGR cooler 53, an EGR valve 54, and a temperature sensor 55.
  • the EGR passage 52 is a flow path through which EGR gas flows.
  • the EGR cooler 53 is provided in the EGR passage 52 and cools the EGR gas.
  • the EGR valve 54 is a valve that can be opened and closed, and regulates the flow rate of EGR gas.
  • the temperature sensor 55 detects the temperature of the EGR gas flowing through the EGR passage 52.
  • the control device 100 controls the operation of the entire internal combustion engine 1.
  • the control device 100 executes the above-mentioned temperature rise control mode and the normal control mode other than the temperature rise control mode as the control mode of the internal combustion engine 1. Further, the control device 100 controls to adjust the opening degree of the EGR valve 54 based on the intake amount and the NOx emission amount of the intake air of the internal combustion engine 1 in order to suppress the emission amount of NOx in the exhaust gas (also referred to as EGR control). Call). Then, although the details will be described later, the control device 100 estimates the intake air amount and the NOx emission amount according to the control mode, and performs EGR control based on the estimated intake air amount and the NOx emission amount. As a result, EGR control can be performed with high accuracy in the temperature rise control mode and the normal control mode in which the intake and exhaust characteristics are different.
  • control device 100 The detailed configuration of the control device 100 will be described with reference to FIG.
  • FIG. 2 is a schematic diagram for explaining the detailed configuration of the control device 100.
  • the control device 100 has a storage unit 110 and a control unit 120.
  • the storage unit 110 includes, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory).
  • the storage unit 110 stores programs and various data for execution by the control unit 120.
  • the control unit 120 is, for example, a CPU (Central Processing Unit).
  • the control unit 120 controls the operation of the internal combustion engine 1 by executing the program stored in the storage unit 110.
  • the control unit 120 functions as a mode determination unit 122, an intake air amount estimation unit 123, a NOx estimation unit 124, and an EGR control unit 125.
  • the mode determination unit 122 determines the control mode of the internal combustion engine 1. For example, the mode determination unit 122 determines whether the control mode is the temperature rise control mode or the normal control mode.
  • the temperature rise control mode is a control mode for raising the temperature of the aftertreatment device 35 at an early stage from the cold start of the internal combustion engine 1 to the completion of warming up.
  • the normal control mode is a control mode other than the temperature rise control mode.
  • the mode determination unit 122 outputs the determination result to the intake air amount estimation unit 123 and the NOx estimation unit 124.
  • the mode determination unit 122 determines the control mode based on the state of the internal combustion engine 1 detected by the detection sensor group 70.
  • the mode determination unit 122 may determine the control mode based on the temperature of the cooling water for cooling the internal combustion engine 1 and the temperature of the exhaust gas. For example, when the temperature of the cooling water and the temperature of the exhaust gas are higher than the predetermined values, the mode determination unit 122 determines that the temperature rise control mode is used, and the temperature of the cooling water and the temperature of the exhaust gas are predetermined respectively. If it is lower than the value, it is determined that the control mode is normal.
  • the mode determination unit 122 may determine by including another parameter (for example, atmospheric pressure) in addition to the temperature of the cooling water and the temperature of the exhaust gas.
  • the intake air amount estimation unit 123 estimates the intake air amount of the internal combustion engine 1.
  • the intake air amount estimation unit 123 estimates the intake air amount according to the control mode determined by the mode determination unit 122.
  • the intake amount estimation unit 123 estimates the normal intake amount, which is the intake amount in the normal control mode.
  • the intake air amount estimation unit 123 estimates the intake air amount at the time of temperature rise, which is the intake amount in the temperature rise control mode.
  • the normal intake amount corresponds to the first intake amount
  • the temperature rise intake amount corresponds to the second intake amount.
  • the intake air amount is obtained by the product of the estimated volumetric efficiency, which is an intake air parameter, and the estimated intake air amount.
  • the estimated volumetric efficiency and the estimated intake air amount can be obtained by a known calculation method.
  • the estimated volumetric efficiency can be obtained by using the rotation speed of the engine body 10 and the fuel injection amount.
  • the estimated intake air amount can be obtained by using the pressure, temperature, and volume in the cylinder 12 of the intake manifold 22.
  • the value of the estimated volumetric efficiency when calculating the normal intake air amount (hereinafter, the first value) and the value of the estimated volumetric efficiency when calculating the heat intake amount at the time of temperature rise (hereinafter, the second value) are set. different.
  • the second value of the estimated volumetric efficiency at the time of obtaining the intake amount at the time of temperature rise is the estimated volumetric efficiency at the time of obtaining the normal time intake amount. It is smaller than the first value. Therefore, the intake air amount at the time of temperature rise estimated by the intake air amount estimation unit 123 is smaller than the normal intake air amount.
  • the NOx estimation unit 124 estimates the amount of NOx emissions.
  • the NOx estimation unit 124 estimates the emission amount according to the control mode determined by the mode determination unit 122.
  • the NOx estimation unit 124 estimates the normal emission amount, which is the emission amount in the normal control mode.
  • the NOx estimation unit 124 estimates the discharge amount at the time of temperature rise, which is the discharge amount in the temperature rise control mode.
  • the normal emission amount corresponds to the first emission amount
  • the temperature rising emission amount corresponds to the second emission amount.
  • the NOx emission amount is obtained by the product of the rotation speed of the engine body 10, the fuel injection amount, and the environmental condition coefficient.
  • the environmental condition coefficient indicates the combustion state in the engine body 10, and corresponds to the emission parameter.
  • the environmental condition coefficient can be obtained by using, for example, the fuel injection timing, the temperature of the cooling water, the temperature of the intake air, and the like.
  • the value of the environmental condition coefficient (hereinafter, the first value) when calculating the emission amount at the normal time and the value of the environmental condition coefficient (hereinafter, the second value) at the time of calculating the emission amount at the time of temperature rise are used. different.
  • the second value of the environmental condition coefficient when calculating the emission amount at the time of temperature rise is the environment when the emission amount at the normal time is calculated. It is smaller than the first value of the condition coefficient. Therefore, the emission amount at the time of temperature rise estimated by the NOx estimation unit 124 is smaller than the emission amount at the normal time.
  • the EGR control unit 125 controls the operation of the EGR device 50.
  • the EGR control unit 125 controls the opening / closing (EGR control) of the EGR valve 54 of the EGR device 50.
  • the EGR control unit 125 controls the operation of the EGR device 50 based on the estimated values of the intake air amount estimation unit 123 and the NOx estimation unit 124.
  • the EGR control unit 125 uses the EGR device 50 based on the intake air amount and the NOx emission amount estimated by the intake air amount estimation unit 123 and the NOx estimation unit 124 according to the control mode determined by the mode determination unit 122. Control. That is, in the normal control mode, the EGR control unit 125 uses the normal intake amount estimated by the intake amount estimation unit 123 and the normal discharge amount estimated by the NOx estimation unit 124, and the EGR valve 54 Controls the opening and closing of. On the other hand, in the case of the temperature rise control mode, the EGR control unit 125 uses the intake air amount at temperature temperature estimated by the intake air amount estimation unit 123 and the discharge amount at temperature temperature estimated by the NOx estimation unit 124. , Controls the opening and closing of the EGR valve 54.
  • FIG. 3 is a flowchart for explaining an operation example of the internal combustion engine 1. This flowchart starts from the place where the internal combustion engine 1 is operating. Along with this, the exhaust gas generated from the engine body 10 is flowing through the exhaust passage 30.
  • the mode determination unit 122 determines the control mode of the internal combustion engine 1 (step S102). Specifically, the mode determination unit 122 determines whether the control mode is the temperature rise control mode or the normal control mode.
  • step S104 determines that the temperature rise control mode is set (step S104: Yes)
  • the intake air amount estimation unit 123 estimates the intake air amount at the time of temperature rise, which is the intake air amount in the temperature rise control mode (step S104: Yes).
  • Step S106 estimates the intake air amount at the time of temperature rise, which is the intake air amount in the temperature rise control mode (step S104: Yes).
  • the NOx estimation unit 124 estimates the amount of NOx discharged at the time of temperature rise, which is the amount of NOx discharged in the temperature rise control mode (step S108).
  • the processing of step S106 and the processing of step S108 may be performed in the reverse order or may be performed at the same time.
  • the EGR control unit 125 opens and closes the EGR valve 54 of the EGR device 50 based on the intake air amount at the time of temperature rise estimated by the intake air amount estimation unit 123 and the discharge amount at the time of temperature rise estimated by the NOx estimation unit 124. Is controlled (step S110). For example, the EGR control unit 125 controls the opening degree of the EGR valve 54.
  • the intake amount estimation unit 123 estimates the normal intake amount, which is the intake amount in the normal control mode (step S112). .. Further, the NOx estimation unit 124 estimates the normal emission amount, which is the NOx emission amount in the normal control mode (step S114).
  • the EGR control unit 125 controls the opening and closing of the EGR valve 54 based on the normal intake amount estimated by the intake amount estimation unit 123 and the normal discharge amount estimated by the NOx estimation unit 124 (step S116). ). For example, the EGR control unit 125 controls the opening degree of the EGR valve 54.
  • the control device 100 of the internal combustion engine 1 of the above-described embodiment has an intake amount (first intake amount) and NOx emission amount (first emission amount) in the normal control mode and an intake amount (first) in the temperature rise control mode.
  • the intake amount) and the NOx emission amount (first emission amount) are estimated using different values.
  • the control device 100 controls the operation of the EGR device 50 based on the intake amount and the NOx discharge amount estimated according to the control mode.
  • the intake amount and NOx emission amount in the normal control mode and the intake amount and NOx emission amount in the temperature rise control mode can be estimated with high accuracy. Therefore, EGR control based on the intake amount and the NOx emission amount can be performed with high accuracy in the normal control mode and the temperature rise control mode.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Ce dispositif de commande comprend : une unité de détermination de mode (122) qui détermine si oui ou non un mode de commande d'un moteur à combustion interne est un mode de commande de montée de température et un mode de commande normal; une unité d'estimation de quantité d'admission (123) qui estime une première quantité d'admission au moyen d'une première valeur d'un paramètre d'admission lorsqu'il est déterminé que le mode de commande est le mode de commande normal et estime une seconde quantité d'admission au moyen d'une seconde valeur du paramètre d'admission différente de la première valeur lorsqu'il est déterminé que le mode de commande est le mode de commande de montée de température; une unité d'estimation de NOx (124) qui estime une première quantité d'évacuation au moyen d'une première valeur d'un paramètre d'évacuation lorsqu'il est déterminé que le mode de commande est le mode de commande normal et estime une seconde quantité d'évacuation au moyen d'une seconde valeur du paramètre d'évacuation différente de la première valeur lorsqu'il est déterminé que le mode de commande est le mode de commande de montée de température; et une unité de commande de RGE (125) qui commande un dispositif de RGE destiné à faire recirculer une partie des gaz d'échappement sur la base des quantités d'admission et des quantités d'évacuation de NOx estimées par l'unité d'estimation de quantité d'admission (123) et l'unité d'estimation de NOx (124) en fonction du mode de commande déterminé par l'unité de détermination de mode (122).
PCT/JP2021/025265 2020-07-16 2021-07-05 Dispositif de commande pour moteur à combustion interne WO2022014388A1 (fr)

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CN202180039392.0A CN115698491A (zh) 2020-07-16 2021-07-05 内燃机的控制装置

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JP2020-122193 2020-07-16
JP2020122193A JP2022018819A (ja) 2020-07-16 2020-07-16 内燃機関の制御装置

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57168040A (en) * 1981-04-10 1982-10-16 Nippon Kokan Kk <Nkk> Method to determine combustion condition of diesel engine
JP2001073789A (ja) * 1999-09-07 2001-03-21 Mitsubishi Motors Corp 内燃機関の過給圧制御装置
JP2001091370A (ja) * 1999-09-27 2001-04-06 Mitsubishi Motors Corp 流体温度推定装置
JP2002180885A (ja) * 2000-12-14 2002-06-26 Toyota Motor Corp 内燃機関の排気浄化装置
JP2002180871A (ja) * 2000-12-07 2002-06-26 Denso Corp 内燃機関の触媒早期暖機制御装置
JP2003138974A (ja) * 2001-10-30 2003-05-14 Kokusan Denki Co Ltd 内燃機関の吸気管内圧力予測方法及び燃料噴射制御方法
JP2008121459A (ja) * 2006-11-09 2008-05-29 Toyota Motor Corp 吸気量測定装置の測定値補正方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57168040A (en) * 1981-04-10 1982-10-16 Nippon Kokan Kk <Nkk> Method to determine combustion condition of diesel engine
JP2001073789A (ja) * 1999-09-07 2001-03-21 Mitsubishi Motors Corp 内燃機関の過給圧制御装置
JP2001091370A (ja) * 1999-09-27 2001-04-06 Mitsubishi Motors Corp 流体温度推定装置
JP2002180871A (ja) * 2000-12-07 2002-06-26 Denso Corp 内燃機関の触媒早期暖機制御装置
JP2002180885A (ja) * 2000-12-14 2002-06-26 Toyota Motor Corp 内燃機関の排気浄化装置
JP2003138974A (ja) * 2001-10-30 2003-05-14 Kokusan Denki Co Ltd 内燃機関の吸気管内圧力予測方法及び燃料噴射制御方法
JP2008121459A (ja) * 2006-11-09 2008-05-29 Toyota Motor Corp 吸気量測定装置の測定値補正方法

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CN115698491A (zh) 2023-02-03

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