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1. WO2012069377 - OPERATING METHOD

Publication Number WO/2012/069377
Publication Date 31.05.2012
International Application No. PCT/EP2011/070445
International Filing Date 18.11.2011
IPC
F02B 29/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
29Engines characterised by provision for charging or scavenging not provided for in groups F02B25/, F02B27/147; Details thereof
08Modifying distribution valve timing for charging purposes
CPC
F02B 29/083
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
29Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
08Modifying distribution valve timing for charging purposes
083Cyclically operated valves disposed upstream of the cylinder intake valve, controlled by external means
F02D 13/0269
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
13Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02during engine operation
0269Controlling the valves to perform a Miller-Atkinson cycle
F02D 2009/0279
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
0279Throttle valve control for intake system with two parallel air flow paths, each controlled by a throttle, e.g. a resilient flap disposed on a throttle
F02M 26/44
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
26Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
13Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
42having two or more EGR passages; EGR systems specially adapted for engines having two or more cylinders
44in which a main EGR passage is branched into multiple passages
Y02T 10/12
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
10Internal combustion engine [ICE] based vehicles
12Technologies for the improvement of indicated efficiency of a conventional ICE
Applicants
  • MAHLE INTERNATIONAL GMBH [DE]/[DE] (AllExceptUS)
  • BÜCKER, Christian [DE]/[DE] (UsOnly)
  • ULLMANN, Alexander [DE]/[DE] (UsOnly)
Inventors
  • BÜCKER, Christian
  • ULLMANN, Alexander
Agents
  • BRP RENAUD & PARTNER Rechtsanwälte, Notare, Patentanwälte
Priority Data
10 2010 061 859.424.11.2010DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) BETRIEBSVERFAHREN
(EN) OPERATING METHOD
(FR) PROCÉDÉ DE FONCTIONNEMENT
Abstract
(DE)
Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben einer Brennkraftmaschine (1), insbesondere eines Kraftfahrzeugs, wobei die Brennkraftmaschine (1) in einem Motorblock (2) mehrere mit Gaswechselventilen (5, 6) gesteuerte Zylinder (3) und eine den Zylindern (3) Frischluft zuführende Frischluftanlage (7) aufweist, die wenigstens ein Zusatzventil (30) aufweist, das in einem zu mindestens einem Zylinder (3) führenden Frischluftkanal (8', 8") stromauf der zugehörigen Gaswechselventile (5, 6) angeordnet ist, bei dem das jeweilige Zusatzventil (30) so betrieben wird, dass sich Öffnungsphasen (A), in denen das Zusatzventil (30) den Frischluftkanal (8', 8") öffnet, und Schließphasen (B), in denen das Zusatzventil (30) den Frischluftkanal (8', 8") schließt, abwechseln, wobei Öffnungsphasen (A) abhängig von einem aktuellen Betriebszustand der Brennkraftmaschine (1) variiert werden, um die Öffnungsphasen (A) an den aktuellen Betriebszustand anzupassen. Verbesserte Werte für Kraftstoffverbrauch und Schadstoffemissionen lassen sich erreichen, wenn das Variieren der Öffnungsphasen (A) zum Anpassen an den aktuellen Betriebszustand der Brennkraftmaschine (1) so erfolgt, dass eine in Grad Kurbelwellenwinkel einer Kurbelwelle (35) der Brennkraftmaschine (1) gemessene Öffnungsdauer (41) der Öffnungsphase (A) variiert wird, wozu ein Schließzeitpunkt (40) der Öffnungsphase (A) hinsichtlich seiner Phasenlage zum Kurbelwellenwinkel variiert wird, während ein Öffnungszeitpunkt (39) der Öffnungsphase (A) hinsichtlich seiner Phasenlage zum Kurbelwellenwinkel konstant bleibt.
(EN)
The invention relates to a method for operating an internal combustion engine (1), in particular of a motor vehicle, wherein in an engine block (2) the internal combustion engine (1) comprises a plurality of cylinders (3) controlled by gas exchange valves (5, 6) and a fresh air system (7) supplying the cylinders (3) with fresh air. The fresh air system comprises at least one additional valve (30), which is arranged, upstream of the associated gas exchange valves (5, 6), in a fresh air duct (8', 8") leading to at least one cylinder (3), wherein the respective additional valve (30) is operated such that opening phases (A), during which the additional valve (30) opens the fresh air duct (8', 8"), alternate with closing phases (B), during which the additional valve (30) closes the fresh air duct (8', 8"). Opening phases (A) are varied depending on the current operating state of the internal combustion engine (1) in order to adapt the opening phases (A) to the current operating state. Improved values for fuel consumption and harmful substance emission can be achieved by varying the opening phases (A) in order to adapt to the current operating state of the internal combustion engine (1) such that an opening duration (41) of the opening phase (A) measured in crank angle degrees of a crank shaft (35) of the internal combustion engine (1) is varied, for which purpose a closing time (40) of the opening phase (A) is varied with respect to the phase position thereof to the crankshaft angle, while an opening time (39) of the opening phase (A) remains constant with respect to the phase position thereof to the crankshaft angle.
(FR)
La présente invention porte sur un procédé de fonctionnement d'un moteur à combustion interne (1), en particulier d'un moteur de véhicule automobile, le moteur à combustion interne (1) présentant dans un bloc moteur (2), plusieurs cylindres (3) commandés par des soupapes de distribution (5, 6), et un dispositif d'air frais (7) qui introduit de l'air frais dans les cylindres (3), et qui présente au moins une soupape d'addition (30) qui est disposée dans un canal d'air frais (8', 8") qui mène à au moins un cylindre (3), en amont des soupapes de distribution (5, 6) correspondantes, la soupape d'addition correspondante (30) étant actionnée de sorte que des phases d'ouverture (A), dans lesquelles la soupape d'addition (30) ouvre le canal d'air frais (8', 8"), et des phases de fermeture (B), dans lesquelles la soupape d'addition (30) ferme le canal d'air frais (8', 8"), alternent entre elles, des phases d'ouverture (A) étant modifiées en fonction de l'état de fonctionnement actuel du moteur à combustion interne (1) pour adapter les phases d'ouvertures (A) à l'état de fonctionnement actuel. On peut obtenir des valeurs améliorées de consommation de carburant et d'émission de substances polluantes lorsque la modification des phases d'ouverture (A) pour l'adaptation à l'état de fonctionnement actuel du moteur à combustion interne (1) se produit de sorte que la durée d'ouverture (41) de la phase d'ouverture (A), mesurée en degrés d'angle du vilebrequin (35) du moteur à combustion interne (1), soit modifiée, ce pourquoi l'instant de fermeture (40) de la phase d'ouverture (A) est modifiée dans sa position de phase par rapport à l'angle du vilebrequin, tandis que l'instant d'ouverture (39) de la phase d'ouverture (A) reste constant en ce qui concerne sa position de phase par rapport à l'angle du vilebrequin.
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