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1. WO2018047286 - CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

Publication Number WO/2018/047286
Publication Date 15.03.2018
International Application No. PCT/JP2016/076568
International Filing Date 09.09.2016
IPC
F02D 9/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
9Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
02concerning induction conduits
CPC
F02B 37/162
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
12Control of the pumps
16by bypassing charging air
162by bypassing, e.g. partially, intake air from pump inlet to pump outlet
F02B 37/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
37Engines characterised by provision of pumps driven at least for part of the time by exhaust
12Control of the pumps
18by bypassing exhaust ; from the inlet to the outlet of turbine or to the atmosphere
F02D 2009/0276
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
9Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
02concerning induction conduits
0201Arrangements; Control features; Details thereof
0276Throttle and EGR-valve operated together
F02D 2041/0017
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
0002Controlling intake air
0017by simultaneous control of throttle and exhaust gas recirculation
F02D 2200/0406
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
2200Input parameters for engine control
02the parameters being related to the engine
04Engine intake system parameters
0406Intake manifold pressure
F02D 2250/41
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
2250Engine control related to specific problems or objectives
41Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster
Applicants
  • 日産自動車株式会社 NISSAN MOTOR CO., LTD. [JP]/[JP]
  • ルノー エス.ア.エス. RENAULT S.A.S. [FR]/[FR]
Inventors
  • 濱本 高行 HAMAMOTO, Takayuki
  • 鈴木 大輔 SUZUKI, Daisuke
  • 米倉 賢午 YONEKURA, Kengo
  • 八坂 賢治 YASAKA, Kenji
Agents
  • 小林 博通 KOBAYASHI, Hiromichi
  • 富岡 潔 TOMIOKA, Kiyoshi
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
(FR) PROCÉDÉ DE COMMANDE ET DISPOSITIF DE COMMANDE POUR MOTEUR À COMBUSTION INTERNE
(JA) 内燃機関の制御方法及び制御装置
Abstract
(EN) In the present invention, a negative pressure control valve (44) is provided in an air intake passage (12) on the upstream side of a confluence position (30) where an exhaust gas recirculation (EGR) passage (27) converges with the air intake passage (12). In an EGR region (Regr) where EGR gas recirculates through the EGR passage (27) into the air intake passage (12), the negative pressure control valve (44) is controlled so as to ensure a pressure difference between an exhaust passage (13) and the intake passage (12). In an operating region (R2) on the negative-load side of the EGR region (Regr), the negative pressure control valve (R2) is controlled in the closing direction so as to suppress noise generation.
(FR) Dans la présente invention, une valve de commande de pression négative (44) est disposée dans un passage d'admission d'air (12) sur le côté amont d'une position de confluence (30) où un passage de remise en circulation des gaz d'échappement (27) (EGR) converge avec le passage d'admission d'air (12). Dans une région EGR (Regr) où les gaz EGR sont remis en circulation à travers le passage EGR (27) vers le passage d'admission d'air (12), la valve de commande de pression négative (44) est commandée de manière à assurer une différence de pression entre un passage d'échappement (13) et le passage d'admission (12). Dans une région de fonctionnement (R2) sur le côté charge négative de la région EGR (Regr), la valve de commande de pression négative (R2) est commandée dans la direction de fermeture de façon à supprimer la génération de bruit.
(JA) EGR通路(27)が吸気通路(12)に合流する合流位置(30)よりも上流側の吸気通路(12)に負圧制御弁(44)を設ける。EGR通路(27)を通してEGRガスを吸気通路(12)へ還流するEGR領域(Regr)では、排気通路(13)と吸気通路(12)との間の差圧を確保するように、負圧制御弁(44)を制御する。そして、EGR領域(Regr)よりも低負荷側の運転領域(R2)では、騒音の発生を抑制するように、負圧制御弁(R2)を閉方向に制御する。
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