WO2015107825A1 - 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
WO2015107825A1
WO2015107825A1 PCT/JP2014/083317 JP2014083317W WO2015107825A1 WO 2015107825 A1 WO2015107825 A1 WO 2015107825A1 JP 2014083317 W JP2014083317 W JP 2014083317W WO 2015107825 A1 WO2015107825 A1 WO 2015107825A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fuel ratio
amount
torque
target
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.)
Ceased
Application number
PCT/JP2014/083317
Other languages
English (en)
Inventor
Noriyasu Adachi
Yosuke Matsumoto
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of WO2015107825A1 publication Critical patent/WO2015107825A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F02D41/0002—Controlling intake air
    • F02D41/0005—Controlling intake air during deceleration
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/1502—Digital data processing using one central computing unit
    • F02P5/1504—Digital data processing using one central computing unit with particular means during a transient phase, e.g. acceleration, deceleration, gear change
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
    • F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
    • F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
    • F02D41/307—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes to avoid torque shocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
    • 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 ignition retardation amount can be thereby decreased more than by changing the air-fuel ratio in a step manner from the third air-fuel ratio towards the second air-fuel ratio, it is possible to suppress the amount of NOx emissions and also suppress a deterioration in the fuel consumption performance by combining changing of the target air-fuel ratio from the third air-fuel ratio to the second air-fuel ratio in a continuous manner with the above described changing of the air-fuel ratio from the first air-fuel ratio to the third air-fuel ratio in a step manner.
  • the control device of the present invention while on one hand a parameter that provides a conversion efficiency of the air amount to torque that is used to calculate a target air amount is changed in a direction in which the air amount increases, the target air-fuel ratio is maintained at the first air-fuel ratio.
  • the torque that can be achieved with the target air amount and the target air-fuel ratio is in excess of the requested torque, and retardation of the ignition timing is performed to compensate for the excessive amount of torque.
  • the ignition retardation amount can be thereby decreased more than by changing the target air-fuel ratio in a step manner from the third air-fuel ratio towards the second air-fuel ratio, it is possible to suppress the amount of NOx emissions and also suppress a deterioration in the fuel consumption performance by combining changing of the target air-fuel ratio from the third air-fuel ratio to the second air-fuel ratio in a continuous manner with the above described changing of the target air-fuel ratio from the first air-fuel ratio to the third air-fuel ratio in a step manner.
  • the target air-fuel ratio after switching of the target air-fuel ratio from the first air-fuel ratio to the third air-fuel ratio, it is also possible to calculate the amount of NOx emissions from inside the cylinders with respect to a predetermined ignition timing based on the target air-fuel ratio, and the target air-fuel ratio can be changed in a continuous manner within a range from the third air-fuel ratio to the second air-fuel ratio so that the calculated amount of NOx emissions does not exceed a predetermined allowable limit. It is thereby possible to switch the air-fuel ratio while ensuring that the amount of NOx emissions does not exceed a
  • the internal combustion engine is a supercharged engine equipped with a supercharger
  • the first actuator includes a supercharging property varying actuator that changes a supercharging property of the supercharger
  • the supercharging property varying actuator is operated so that supercharging of the supercharger changes in an increasing direction during switching of the air-fuel ratio, the responsiveness of the air can be increased and the time required to switch the air-fuel ratio can be shortened.
  • the supercharging property varying actuator is a waste gate valve, since the back pressure increases when the waste gate valve is closed, it is possible to further reduce the amount of NOx emissions by increasing the internal EGR rate during switching of the air-fuel ratio.
  • Fig. 8 illustrates settings of operating ranges according to the present embodiment of the present invention.
  • predetermined condition is that a request to change the operating state of the engine to a large degree is output from the powertrain manager 200.
  • the arithmetic unit 164 back-calculates a target intake pipe pressure that is a target value of the intake pipe pressure from the target air amount.
  • a map that describes the relation between an air amount that is drawn into the cylinders through the intake valve and the intake pipe pressure is used to calculate the target intake pipe pressure.
  • the relation between the air amount and the intake pipe pressure changes depending on the valve timing. Therefore, when calculating the target intake pipe pressure, a parameter value of the aforementioned map is determined based on the current valve timing.
  • the target intake pipe pressure is described as "Pmt" in the drawings.
  • step SI of the flowchart in Fig. 5 the arithmetic unit 408 determines whether or not switching of the virtual air-fuel ratio from the first air-fuel ratio to the second air-fuel ratio is completed. If the virtual air-fuel ratio is still the first air-fuel ratio, the processing of the arithmetic unit 408 advances to step S7. In step S7, processing to maintain the target air-fuel ratio at the first air-fuel ratio is performed. After step S7, the processing of the arithmetic unit 408 returns to step S I again. During this period, if the estimated torque is the value of the requested first torque, the ignition timing is the optimal ignition timing. If the virtual air-fuel ratio was switched to the second air-fuel ratio, the processing of the arithmetic unit 408 advances to step S2.
  • step S4 the processing of the arithmetic unit 408 advances to step S5.
  • step S5 the arithmetic unit 408 determines whether or not the estimated air amount has reached the target air amount. If it is determined as a result that the estimated air amount has not reached the target air amount, the processing of the arithmetic unit 408 returns to step S4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

En réponse à la satisfaction d'un état de commutation d'un mode de fonctionnement, un rapport air-combustible virtuel passe du premier rapport air-combustible à un deuxième rapport air-combustible. Après le changement, le rapport air-combustible cible est maintenu au premier rapport air-combustible jusqu'à ce qu'une quantité d'air estimée atteigne une quantité d'air intermédiaire, et en réaction au fait que la quantité d'air estimée a atteint la quantité d'air intermédiaire, le rapport air-combustible cible passe à un troisième rapport air-combustible, puis le rapport air-combustible cible change de façon continue dans une plage du troisième rapport air-combustible au deuxième rapport air-combustible sur la base de la quantité d'air estimée et du couple demandé, et est fixé au deuxième rapport air-combustible à un moment où une différence entre une quantité d'air cible et la quantité d'air estimée devient inférieure ou égale à une valeur seuil.
PCT/JP2014/083317 2014-01-15 2014-12-10 Dispositif de commande pour moteur à combustion interne Ceased WO2015107825A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014005118A JP2015132237A (ja) 2014-01-15 2014-01-15 内燃機関の制御装置
JP2014-005118 2014-01-15

Publications (1)

Publication Number Publication Date
WO2015107825A1 true WO2015107825A1 (fr) 2015-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/083317 Ceased WO2015107825A1 (fr) 2014-01-15 2014-12-10 Dispositif de commande pour moteur à combustion interne

Country Status (2)

Country Link
JP (1) JP2015132237A (fr)
WO (1) WO2015107825A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3599367A1 (fr) * 2018-07-26 2020-01-29 Mazda Motor Corporation Système de commande pour moteur à allumage par compression, procédé de commande d'un moteur à allumage par compression, produit de programme informatique et moteur à allumage par compression
EP3599362A1 (fr) * 2018-07-26 2020-01-29 Mazda Motor Corporation Système de commande pour moteur à allumage par compression, procédé de commande d'un moteur à allumage par compression et produit programme informatique
US10883438B2 (en) 2018-07-26 2021-01-05 Mazda Motor Corporation Control system for compression ignition engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06264786A (ja) 1993-03-11 1994-09-20 Nissan Motor Co Ltd 内燃機関の制御装置
JP2005069029A (ja) * 2003-08-27 2005-03-17 Toyota Motor Corp 内燃機関の制御装置
JP2007231849A (ja) 2006-03-01 2007-09-13 Toyota Motor Corp 内燃機関の制御装置
WO2008056242A2 (fr) * 2006-11-10 2008-05-15 Toyota Jidosha Kabushiki Kaisya Moteur à combustion interne et procédé de commande de moteur à combustion interne
JP2009209903A (ja) * 2008-03-06 2009-09-17 Nissan Motor Co Ltd 内燃機関の制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06264786A (ja) 1993-03-11 1994-09-20 Nissan Motor Co Ltd 内燃機関の制御装置
JP2005069029A (ja) * 2003-08-27 2005-03-17 Toyota Motor Corp 内燃機関の制御装置
JP2007231849A (ja) 2006-03-01 2007-09-13 Toyota Motor Corp 内燃機関の制御装置
WO2008056242A2 (fr) * 2006-11-10 2008-05-15 Toyota Jidosha Kabushiki Kaisya Moteur à combustion interne et procédé de commande de moteur à combustion interne
JP2009209903A (ja) * 2008-03-06 2009-09-17 Nissan Motor Co Ltd 内燃機関の制御装置

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3599367A1 (fr) * 2018-07-26 2020-01-29 Mazda Motor Corporation Système de commande pour moteur à allumage par compression, procédé de commande d'un moteur à allumage par compression, produit de programme informatique et moteur à allumage par compression
EP3599362A1 (fr) * 2018-07-26 2020-01-29 Mazda Motor Corporation Système de commande pour moteur à allumage par compression, procédé de commande d'un moteur à allumage par compression et produit programme informatique
CN110778411A (zh) * 2018-07-26 2020-02-11 马自达汽车株式会社 压缩着火式发动机的控制装置
CN110778412A (zh) * 2018-07-26 2020-02-11 马自达汽车株式会社 压缩着火式发动机的控制装置
US10837391B2 (en) 2018-07-26 2020-11-17 Mazda Motor Corporation Control system for compression ignition engine
US10859015B2 (en) 2018-07-26 2020-12-08 Mazda Motor Corporation Control system for compression ignition engine
US10883438B2 (en) 2018-07-26 2021-01-05 Mazda Motor Corporation Control system for compression ignition engine
CN110778412B (zh) * 2018-07-26 2022-05-13 马自达汽车株式会社 压缩着火式发动机的控制装置
CN110778411B (zh) * 2018-07-26 2022-05-13 马自达汽车株式会社 压缩着火式发动机的控制装置

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