Abrégé

A method is provided for predicting NOx loading at a DeNOx catalyst by which a NOx amount actually stored in the DeNOx catalyst can be precisely predicted and to an exhaust system which controls a regeneration timing of the DeNOx catalyst and amount of a reducing agent which is injected by using the method. The method may include calculating mass flow of NOx stored at the DeNOx catalyst, calculating mass flow of NOx thermally released from the DeNOx catalyst, calculating mass flow of NOx chemically released from the DeNOx catalyst, and calculating NOx amount actually stored at the DeNOx catalyst by using the mass flow of NOx stored at the DeNOx catalyst, the mass flow of NOx thermally released from the DeNOx catalyst, and the mass flow of NOx chemically released from the DeNOx catalyst.

Classes IPC  ?

• F01N 3/00 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement
• F01N 3/08 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs
• F01N 3/025 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de filtres utilisant des moyens pour régénérer les filtres, p. ex. par combustion des particules piégées en utilisant un brûleur à combustible ou par addition de combustible à l'échappement
• F01N 11/00 - Dispositifs de surveillance ou de diagnostic pour les appareils de traitement des gaz d'échappement

Abrégé

A method for predicting sulfur oxides (SOx) stored at a denitrification (DeNOx) catalyst may include calculations of the mass flow of SOx poisoned at the DeNOx catalyst, the mass flow of SOx released from the DeNOx catalyst, and the SOx amount poisoned at the DeNOx catalyst by integrating the value obtained by subtracting the released mass flow of SOx from the poisoned mass flow of SOx. An exhaust system using the method may comprise an engine having a first injector, an exhaust pipe, a second injector mounted at the exhaust pipe and injecting a reducing agent, a DeNOx catalyst mounted at the exhaust pipe and reducing SOx or nitrogen oxides (NOx) or both contained in the exhaust gas by using the reducing agent, and a control portion electrically connected to the system and performing the calculations and controls.

Classes IPC  ?

• F01N 3/00 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement

Abrégé

A method for predicting regeneration may include calculating total mass flow of reducing agent, calculating mass flow of the reducing agent used in nitrate reduction reaction, mass flow of the reducing agent used in NO2 reduction reaction, and mass flow of the reducing agent which is simply oxidized by using the total mass flow of the reducing agent, calculating mass flow of released NO2 and mass flow of reduced NO2 by using the mass flow of the reducing agent used in the nitrate reduction reaction and the mass flow of the reducing agent used in the NO2 reduction reaction, calculating mass flow of NO2 slipped from DeNOx catalyst, and calculating mass of NO2 and mass of NOx remaining at the DeNOx catalyst after regeneration based on the mass flow of the released NO2, the mass flow of the reduced NO2, and the mass flow of the slipped NO2.

Classes IPC  ?

• F01N 3/10 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement

Abrégé

A method for predicting a NOx amount, may include determining a reference NOx amount according to a driving condition of an engine, primarily correcting the reference NOx amount according to an exhaust gas recirculation (EGR) ratio, and secondarily correcting the primarily corrected NOx amount according to an environmental factor and the driving condition.

Classes IPC  ?

• F01N 3/00 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F01N 13/02 - Silencieux ou dispositifs d'échappement caractérisés par les aspects de structure ayant plusieurs silencieux séparés en série
• F02D 41/02 - Dispositions de circuits pour produire des signaux de commande
• F02D 41/18 - Dispositions de circuits pour produire des signaux de commande en mesurant le débit d'admission d'air
• F01N 3/035 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de filtres en combinaison avec d'autres dispositifs avec des réacteurs catalytiques

Abrégé

A method for predicting a NOx amount may include detecting an O2 amount in an intake air, calculating a reference O2 amount in the intake air according to a driving condition of an engine, calculating a reference NOx amount contained in an exhaust gas according to the driving condition of the engine, and primarily correcting the reference NOx amount based on the detected O2 amount in the intake air and the reference O2 amount in the intake air according to the driving condition of the engine.

Classes IPC  ?

• F01N 3/00 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement

Abrégé

The invention relates to a method for suppressing irregular combustion in a combustion chamber (8, 10, 12, 14) of an internal combustion engine (2), especially a direct injection engine, which combustion especially occurs prior to a predetermined ignition point. According to said method, a fuel quantity resulting in a rich fuel-air ratio λ is injected into the combustion chamber (8, 10, 12, 14) in the same combustion cycle in which irregular combustion is detected, to stop the irregular combustion. The invention further relates to a control device (4) comprising at least one evaluation unit (6) for treating and processing signals produced by at least one measuring unit (16, 18, 20, 22, 24, 26) to detect irregular combustion, especially combustion deviating from a predetermined ignition point, in a combustion chamber (8, 10, 12, 14) of an internal combustion engine (2) associated with the control device, an algorithm for detecting irregular combustion being stored in the evaluation unit (6) which can be connected to the measuring unit (16, 18, 20, 22, 24, 26). The control device further comprises a trigger for triggering fuel injection when irregular combustion is detected.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/30 - Commande de l'injection de combustible

Abrégé

The invention relates to a fuel injection apparatus (2) for a combustion engine, comprising a high-pressure line (4), a control unit (6) which is connected to the high-pressure line (4) and comprises a control valve (10) having an actuator (8) a main valve (12), and a shut-off valve (14), and further comprising a nozzle (18), which is connected to the control unit (6) by way of a feed line and injects the fuel in the combustion engine. A control pressure which can be modulated is set at the control unit (6) by way of the actuator (8), wherein the fuel is injected in the combustion engine based on the control pressure. The control unit (6) is designed such that, both respect to the control valve (10) and with respect to the main valve (12), a leakage flow of the fuel through the valve (10, 12) from a higher-pressure region that is associated with the particular valve to a lower-pressure region that is associated with the particular valve is prevented during the idle phase. The invention further relates to a method for injection fuel in a combustion engine.

Classes IPC  ?

• F02M 63/00 - Autres appareils d'injection ayant des caractéristiques particulières non couvertes dans les groupes ou Détails, parties constitutives ou accessoires non couverts dans les groupes ou ou présentant un intérêt autre que celui visé par ces groupes
• F02M 45/12 - Appareils d'injection caractérisés par une variation périodique de la pression ou du débit fournissant un débit continu à pression variable

Abrégé

The present invention relates to a diesel combustion engine, which comprises at least one or more cylinders (2), each having a displacement of approximately 250 ccm at the most, preferably less than 250 ccm, wherein a cylinder (2) comprises a delimitation of a combustion chamber (3) in a conical shape by a cylinder head (4) of the diesel combustion engine (1), an injection system (11) which is arranged at least approximately centrally and centrically in the conical shape, a piston (5) having a piston bowl (8), and an intake valve and channel system and geometry for generating a swirl in the combustion chamber (3) of the cylinder (2), and is provided with individual intake and outlet valves (13, 14), wherein the intake and outlet valves (13, 14) are arranged opposite of each other in the cylinder head (4). Furthermore, a diesel-engine combustion method for a small displacement is proposed.

Classes IPC  ?

• F02B 23/06 - Autres moteurs caractérisés par des chambres de combustion d'une forme ou d'une structure particulières pour améliorer le fonctionnement avec allumage par compression l'espace de combustion étant disposé dans le piston moteur
• F02D 13/02 - Réglage de la puissance du moteur par variation des caractéristiques de fonctionnement de la soupape d'admission ou de la soupape d'échappement, p. ex. réglage de la durée d'admission ou d'échappement pendant la marche du moteur
• F02F 1/42 - Forme ou disposition des canalisations d'admission ou d'échappement dans les culasses de cylindres

Abrégé

The invention relates to an exhaust gas recirculation system for an internal combustion engine (1) comprising an exhaust gas turbocharger, wherein an exhaust gas recirculation line (2) is connected both to an exhaust tract (25) of the internal combustion engine for removing exhaust gas and to a fresh air supply (17) of the internal combustion engine, and to a method for exhaust gas recirculation in an internal combustion engine comprising an exhaust gas turbocharger.

Classes IPC  ?

• F02M 25/07 - ajoutant des gaz d'échappement

Abrégé

The invention relates to a method for detecting misfires in an internal combustion engine (2), wherein in at least one location of the internal combustion machine (2) structure-borne noise-producing events caused during operation of the internal combustion engine (2) are captured using a measuring element (6) and converted into signals. The signals are supplied to an evaluation unit (4) of preferably a control device (5) for editing and further processing. To this end, contact and/or tilt processes of a piston (60) in a cylinder (62) of the internal combustion engine (2) are captured as structure-borne noise-producing events by the measuring element (6) and converted into signals. The invention further relates to a control device (5) for an internal combustion engine (2) and to an internal combustion engine (2).

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Abrégé

The present invention relates to a method for adjusting a mass flow of an exhaust gas return of an internal combustion engine, taking into consideration a NOx behavior, wherein a controlling system provides a coupling of a virtual NOx determination with a real NOx control. Furthermore, an internal combustion engine with appropriate controlling means is proposed.

Classes IPC  ?

• B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager
• G05D 1/00 - Commande de la position, du cap, de l'altitude ou de l'attitude des véhicules terrestres, aquatiques, aériens ou spatiaux, p. ex. utilisant des pilotes automatiques
• G06F 7/00 - Procédés ou dispositions pour le traitement de données en agissant sur l'ordre ou le contenu des données maniées
• G06F 17/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des fonctions spécifiques
• F02B 47/08 - Mode de fonctionnement des moteurs comportant addition de substances non combustibles ou d'agents antidétonants à l'air comburant, au combustible ou au mélange d'air et de combustible les substances étant autres que l'eau ou la vapeur d'eau uniquement les substances comprenant les gaz d'échappement
• F02M 25/07 - ajoutant des gaz d'échappement

Abrégé

The invention relates to a cylinder head (1) of a combustion engine (2), having at least one camshaft (3) disposed on or in the cylinder head. Inlet and outlet ducts (11, 12), each extending from a flame deck (10) toward an outside connection (23) of an inlet or outlet duct at the cylinder head, are integrated into the cylinder head. To this end, the camshaft is disposed in a space beneath at least one of the inlet or outlet ducts of a cylinder in or on the cylinder head, wherein the space is created at least partially by a section extending away from the flame deck. The invention further relates to a method for assembling such a combustion engine.

Classes IPC  ?

• F01L 1/053 - Arbres à cames du type en tête
• F02F 1/38 - Culasses de cylindres comportant des moyens de refroidissement pour refroidissement par liquide les culasses de cylindres étant du type à soupapes en tête

Abrégé

The invention relates to a vehicle battery (3), for an electric or hybrid vehicle (1), wherein the battery (3) comprises several lithium ion cells (4), arranged together discretely in an outer housing (7) which is placed in a vehicle (1) in an exchangeable manner. A self-securing modular construction of lithium polymer cells is preferably used.

Classes IPC  ?

• H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
• H01M 2/34 - Connexions conductrices du courant pour les éléments avec des moyens pour empêcher un usage ou une décharge indésirables

Abrégé

The invention relates to a battery (3, 46), comprising several cells (4, 18, 19), preferably lithium ion cells, and an outer housing (7, 11, 51), wherein several combined cells (4, 18, 19) form a module (8, 52) and the modules (8, 52) are arranged in series, wherein the modules (8, 52) of the cells (4, 18, 19) are arranged in the outer housing (7, 11, 51), connected by the module housing (9, 29, 31) such as to be able to separate from each other in the case of accident and each module housing (9, 29, 31) for a module (8) forms a first structure (10) with shock-absorbing action in the case of accident and several module housings (9, 29, 31) are fixed in the outer housing (7, 11, 51).

Classes IPC  ?

• H01M 2/10 - Montures; Dispositifs de suspension; Amortisseurs; Dispositifs de manutention ou de transport; Supports
• H01M 2/34 - Connexions conductrices du courant pour les éléments avec des moyens pour empêcher un usage ou une décharge indésirables

Abrégé

The invention relates to a cooling device (10) for an internal combustion engine (42) comprising a cylinder head (11) and an engine block (12), having: a head cooling branch (15) guiding a coolant in cross flow through the cylinder head; - a first block cooling branch (14) guiding the coolant through a first side part of the engine block; and – a second block cooling branch (16) guiding the coolant through a second part of the engine block opposite the first side part; wherein – the first block cooling branch, the head cooling branch, and the second block cooling branch are connected in series. Said cooling device allows a reduction of space required and of costs.

Classes IPC  ?

• F01P 3/02 - Disposition du refroidissement des cylindres ou des hauts de cylindres

Abrégé

The invention relates to a method for producing ageing gas for ageing exhaust-gas aftertreatment components in a burner which has a combustion chamber with at least one fuel injection nozzle and with a combustion air supply with means for swirl generation, wherein the swirl of the combustion air is set as a function of the selected combustion air ratio λ.

Classes IPC  ?

• F01N 3/025 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de filtres utilisant des moyens pour régénérer les filtres, p. ex. par combustion des particules piégées en utilisant un brûleur à combustible ou par addition de combustible à l'échappement
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01N 11/00 - Dispositifs de surveillance ou de diagnostic pour les appareils de traitement des gaz d'échappement
• F23C 7/00 - Appareils à combustion caractérisés par des dispositions pour l'amenée d'air
• F23D 11/10 - Brûleurs à pulvérisation directe de gouttelettes de liquide ou de liquide vaporisé dans l'enceinte de combustion la pulvérisation étant réalisée par un milieu gazeux, p. ex. de la vapeur d'eau
• F23D 11/40 - MélangeursTêtes de brûleurs
• F23D 14/20 - Brûleurs à gaz sans prémélangeur, c.-à-d. dans lesquels le combustible gazeux est mélangé à l'air de combustion à l'arrivée dans la zone de combustion

Abrégé

The invention relates to a multi-cylinder internal combustion engine (10) having at least one cylinder head (11) placed on a cylinder block (12), wherein the cylinder head (11) comprises at least one intake channel (13a) having at least one intake valve (13b) and at least one exhaust channel (14a) having at least one exhaust valve (14b), a combustion chamber (15) formed at least in areas by the cylinder block (12), and a channel system (20) for introducing secondary air into the exhaust channel (14a). According to the invention, the channel system (20) comprises a main line (21) and a plurality of feed lines (22) extending from the main line (21), the feed line (22) comprising a feed area (22a) and an opening area (22b), wherein the opening area (22b) ends in the exhaust channel (14a) of each cylinder, and the main line (21) and the feed area (22a) of the feed line (22) extend within the cylinder block (12).

Classes IPC  ?

• F01N 3/34 - Aménagements pour l'alimentation en air additionnel utilisant des conduits d'air ou des pompes à air à jet, p. ex. à proximité de l'orifice d'échappement du moteur
• F02F 1/42 - Forme ou disposition des canalisations d'admission ou d'échappement dans les culasses de cylindres

Abrégé

The invention relates to a method for operating an internal combustion engine 11 having a liquid cooling system comprising an air intake train 16, an exhaust gas train 23 in which a means for exhaust gas treatment are disposed, and a controllable exhaust gas recirculation line 24, 25 from the exhaust gas train 23 to the air intake train 16, in which an exhaust gas heat exchanger 27 incorporated in the liquid cooling system is disposed, wherein the exhaust gas train 23 is throttled or blocked at one location after a cold start of the internal combustion engine, and the exhaust gas flow is fed from the exhaust gas train 23 through the exhaust gas heat exchanger 27 and back to the exhaust gas train 23, and the exhaust gas recirculation line 25 is blocked before the inlet to the air intake train 16.

Classes IPC  ?

• F02M 25/07 - ajoutant des gaz d'échappement
• F01N 3/04 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de liquides
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur

Abrégé

The invention relates to an internal combustion engine (1) comprising a crankshaft (11), at least one camshaft (31) and a gear train (40) comprising several toothed wheels that enable torque applied to the crankshaft (11) to be transmitted to the camshaft (31). A toothed wheel engages with at least one other toothed wheel of the gear train (40, 40') and a first group (41) of toothed wheels of the gear train (40, 40') is arranged on a first plane (42) and forms a base transmission (45) that is driven by the crankshaft (11), and a second group (43) of toothed wheels of the gear train (40) is arranged on a second plane (44) that is parallel to the plane of the base transmission, and a cam transmission (46) for driving the at least one camshaft (46). The base transmission (45) and the cam transmission (46) are coupled together by a double toothed wheel (49), the engagement angle αNT for engaging the toothed wheel of the camshaft (31) being smaller than the engagement angle QBT for engaging the toothed wheel of the base transmission (45).

Abrégé

The invention relates to a method for operating an internal combustion engine (11) by converting thermal exhaust gas energy into mechanical power, wherein heat from the exhaust gas stream of the internal combustion engine (11) is transferred to the medium of a closed steam power process while producing superheated steam, characterized in that the mechanical power obtained in the steam power process is supplied to a working machine, the heat being removed from the exhaust gas primarily before entry in devices (19) for exhaust gas aftertreatment and being transferred to the medium of the steam power process.

Classes IPC  ?

• F02M 25/07 - ajoutant des gaz d'échappement
• F01N 3/04 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de liquides
• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F02G 5/04 - Utilisation de la chaleur perdue dans les gaz d'échappement en combinaison avec d'autre chaleur perdue par les moteurs à combustion
• F01K 23/06 - Ensembles fonctionnels caractérisés par plus d'une machine motrice fournissant de l'énergie à l'extérieur de l'ensemble, ces machines motrices étant entraînées par des fluides différents les cycles de ces machines motrices étant couplés thermiquement la chaleur de combustion provenant de l'un des cycles chauffant le fluide dans un autre cycle

Abrégé

The invention relates to a method for operating an internal combustion engine 11 with the conversion of thermal exhaust-gas energy into mechanical power, in which method heat is transferred from the exhaust-gas flow of the internal combustion engine 11 to the pre-compressed gaseous medium of an open gas turbine process in a heat exchanger 26 arranged between a compressor 22 and a gas turbine 23, wherein the mechanical power of the gas turbine process is supplied to a working machine.

Classes IPC  ?

• F01N 5/02 - Silencieux ou dispositifs d'échappement combinés ou associés à des dispositifs bénéficiant de l'énergie des gaz évacués les dispositifs utilisant la chaleur
• F02B 37/00 - Moteurs caractérisés par l'utilisation de pompes entraînées au moins temporairement par les gaz d'échappement
• F02C 7/08 - Chauffage de l'air d'alimentation avant la combustion, p. ex. par les gaz d'échappement
• F02G 5/02 - Utilisation de la chaleur perdue dans les gaz d'échappement

Abrégé

The invention relates to a method for operating an internal combustion engine (11) utilizing thermal exhaust gas energy, wherein heat from the exhaust gas of the internal combustion engine (11) is transmitted to the solution of an absorption-type refrigerating machine while driving the refrigerant out of the solvent.

Classes IPC  ?

• F25B 15/00 - Machines, installations ou systèmes à sorption, à marche continue, p. ex. à absorption
• F25B 27/02 - Machines, installations ou systèmes utilisant des sources d'énergie particulières utilisant la chaleur perdue, p. ex. chaleur dégagée par des moteurs à combustion interne

Abrégé

The invention relates to a measuring apparatus for measuring the reaction forces between a piston (4) and a cylinder line (3) of a reciprocating piston internal combustion engine, comprising a cylinder carrier (1), a cylinder liner (3), a piston (4), which is guided in the cylinder liner (3) axially with respect to a cylinder axis Z across a predefined stroke length between an upper dead center position and a lower dead center position, and a plurality of force sensors (12, 13) distributed across the circumference of the cylinder liner (3), the cylinder liner (3) being axially supported against the cylinder carrier (1) by way of said force sensors, wherein the force sensors (12, 13) are disposed above a reference plane E of the piston at half the stroke between the upper dead center position and the lower dead center position, wherein the reference plane E is disposed at a right angle to the cylinder axis Z and a pivot axis S about which a connecting rod (48) can be pivotally connected to the piston (4).

Classes IPC  ?

• G01L 23/08 - Dispositifs ou appareils pour la mesure ou l'indication ou l'enregistrement des changements, rapides, tels que des oscillations, de la pression des vapeurs, des gaz ou des liquidesIndicateurs pour déterminer le travail ou l'énergie des moteurs à vapeur, à combustion interne ou à autres pressions de fluides à partir de la condition du fluide moteur mis en œuvre électriquement
• G01M 15/08 - Test des moteurs à combustion interne par contrôle de la pression dans les cylindres

Abrégé

The invention relates to an air induction system for an internal combustion engine having a cylinder head (11) which has in each case one non-split inlet duct entrance (21) for two gas inlet ducts (24, 25) having two gas inlet valves (12, 13) of a cylinder, wherein an intermediate wall (22) between the two gas inlet ducts (24, 25) begins downstream of the inlet duct entrance (21), having an air flap (15) which is situated in the cross section of an air supply duct (23) and has a rotational axis X which is situated substantially in a cross-sectional plane of the air supply duct (23) and is arranged substantially symmetrically with respect to the gas inlet valves (12, 13), wherein the air flap can be adjusted between a neutral position, in which it is aligned in the longitudinal direction of the air supply duct (23), and an active position, in which it is situated transversely in the air supply duct (23) and partially or entirely blocks the duct cross section.

Classes IPC  ?

• F02B 31/08 - Modification des systèmes d'admission pour imprimer un mouvement de rotation à la charge dans le cylindre comportant plusieurs entrées d'admission d'air
• F02B 37/02 - Passages pour les gaz entre l'orifice d'échappement du moteur et l'entraînement de la pompe, p. ex. réservoirs

Abrégé

The invention relates to a cooling device (10) for an internal combustion engine comprising a cylinder head (11) and an engine block (12), having: - a head cooling branch (14) guiding a coolant in cross flow through the cylinder head; - a block cooling branch (15) guiding the coolant in longitudinal flow through the engine block; and – a first valve (16) releasing a coolant flow through the head cooling branch in a first position and releasing a coolant flow through the head cooling branch and the block cooling branch in a second position, wherein: - the first valve blocks a coolant flow through the block cooling branch in the first position; and – the coolant flow takes place in series in the second position, first through the head cooling branch and then through the block cooling branch. Said cooling device allows the warm-up phase of the internal combustion engine to be shortened.

Classes IPC  ?

• F01P 3/02 - Disposition du refroidissement des cylindres ou des hauts de cylindres
• F01P 11/02 - Dispositifs de trop-plein, d'évacuation ou de vidange de l'agent de refroidissement

Abrégé

The invention relates to a method for controlling an injection process of a direct-injection internal combustion engine (33) of a vehicle (34). In the method in which a fuel is injected into a combustion chamber of the internal combustion engine (33), a start of injection (9), an injection quantity (7) and an injection profile (12) are identified using combustion position control and taking into account the combustion duration of the fuel. In this context, at least one state variable (3, 5, 15) which is assigned to the combustion chamber and which describes the combustion position is used for the combustion position control. In addition, the pilot control system (30, 31, 32) which can be switched on and off and which is brought about by means of a mathematical model which is based on at least one state variable (3, 5, 15) of the combustion chamber is used for controlling the injection process. The ignition delay is estimated using a model. Furthermore, the invention relates to a control device in which the method is stored, and in addition to a direct-injection internal combustion engine (33) of a vehicle (34), having the control device.

Classes IPC  ?

• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection

Abrégé

The invention relates to a method for operating a vehicle 2, wherein in at least one location of a drive train 20 of the vehicle 2 a torque 36 is directly detected as a physical variable by means of at least one sensor 22, 24, 26, 28 and fed as a controlled variable to at least one control circuit of the vehicle 2. The invention further relates to a vehicle 2 comprising a torque-converting drive train 20, at least one control circuit and/or at least one timing chain of a control path of the vehicle 2, at least one controller which is coupled to the control circuit and/or the timing chain of the control path, and at least one sensor 22, 24, 26, 28 for directly detecting a torque in a location of the drive train 20. The sensor is integrated in the control circuit and/or in the timing chain of the control path, and a torque can be specified as a controlled variable by way of the sensor.

Classes IPC  ?

• B60W 10/04 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion
• B60W 30/18 - Propulsion du véhicule
• F02D 41/24 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants caractérisée par l'utilisation de moyens numériques
• B60W 20/00 - Systèmes de commande spécialement adaptés aux véhicules hybrides
• G01L 3/10 - Dynamomètres de transmission rotatifs dans lesquels l'élément transmettant le couple comporte un arbre élastique en torsion impliquant des moyens électriques ou magnétiques d'indication

Abrégé

The invention relates to a device for shifting a manual transmission, comprising a selector fork (7), which is guided axially displaceably along an adjusting axis V, a slotted disk (13), which can be driven to rotate about a rotational axis D, and a guide (15), which is disposed on a front (14) of the slotted disk (13) about the rotational axis D and at least across a portion of the extension thereof has a variable distance to the rotational axis D, wherein the selector fork (7) comprises a driver (16), which engages in the guide (15) for displacing the selector fork (7).

Classes IPC  ?

• F16H 61/32 - Moteurs électriques à cet effet

Abrégé

The present invention relates to a diesel internal combustion engine comprising a particulate filter, an exhaust gas aftertreatment system, a control unit for regenerating the particulate filter, and comprising a) at least one temperature model of a gas in a combustion chamber of a cylinder, said model being associated with at least one and preferably each cylinder and being used to determine a temperature of an exhaust gas exiting the combustion chamber of the cylinder, and/or b) at least one HC emission model associated with at least one and preferably each cylinder, for determining HC emissions of an exhaust gas exiting the combustion chamber of the cylinder, and at least one control algorithm stored in the control unit for controlling the temperature and/or controlling the HC emissions of the exhaust gas exiting the cylinder.  The invention further relates to a method for regenerating a particulate filter.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F01N 3/00 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement
• F01N 9/00 - Commande électrique des appareils de traitement des gaz d'échappement
• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures

Abrégé

A drive system having an 8-speed transmission for a motor vehicle comprising a drive machine (11), particularly an internal combustion engine, comprising a transfer case (12) that is drivingly connected to the drive machine (11) and has three members, and two two-speed transmission structures (17, 18), wherein a first one of the members of the transfer case (12) is drivingly connected to the internal combustion engine (11) and the two other members of the transfer case (12) are each connected to an input shaft (20, 28) of one of the two two-speed transmission structures (17, 18), and wherein between two of the members of the transfer case (12) a shiftable torque converter lock-up clutch (19) is provided, and wherein one output element each, of each of the two two-speed transmission structures (17, 18), is permanently drivingly connected to an output wheel (38, 39) or to an output shaft (40).

Classes IPC  ?

• F16H 37/08 - Combinaisons de transmissions mécaniques non prévues dans les groupes comportant essentiellement et uniquement des transmissions à engrenages ou à friction à plusieurs arbres d’entraînement ou entraînésCombinaisons de transmissions mécaniques non prévues dans les groupes comportant essentiellement et uniquement des transmissions à engrenages ou à friction avec dispositions pour répartir le couple entre plusieurs arbres intermédiaires avec transmission différentielle
• F16H 3/00 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif

Abrégé

The invention relates to a parallel crank drive (10), particularly for an internal combustion engine (11) having variable compression ratio, having: a first and a second clutch body (20, 21) that can each be connected to a first or second shaft (14, 19); - at least one clutch element (22) rotatably supported on both clutch bodies; - a housing (23) encompassing the clutch bodies and clutch elements. The invention further relates to an internal combustion engine having variable compression ratio, having: a pivotally supported crankshaft (14); - drive shaft (19); - parallel crank drive (10) between the crankshaft and drive shaft; - a housing (23) encompassing the parallel crank drive. The invention further relates to a manual transmission, particularly for an internal combustion engine (11) having variable compression ratio, having: - an input shaft (19) that can be connected to a pivotally supported crankshaft (14); the parallel crank drive (10) between the crankshaft and input shaft.

Classes IPC  ?

• F02B 75/04 - Moteurs avec distances variables entre les pistons et les culasses aux positions du point mort haut
• F16D 3/04 - Accouplements extensibles, c.-à-d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement adaptés à des fonctions particulières spécialement adaptés pour permettre un déplacement radial, p. ex. joints Oldham

Abrégé

The present invention relates to a combustion engine with variable compression ratio, having: a crankshaft (1) which is pivotably (2) supported; a flywheel (3) attached to the crankshaft (1); a connecting shaft (10, 26, 27, 28), arranged between the crankshaft (1) and a transmission input shaft (23) of a shift transmission.

Classes IPC  ?

• F02B 75/04 - Moteurs avec distances variables entre les pistons et les culasses aux positions du point mort haut
• B60K 17/22 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type d'arbre principal d'entraînement, p. ex. arbre à cardan
• F16D 3/00 - Accouplements extensibles, c.-à-d. avec moyens permettant le mouvement entre parties accouplées durant leur entraînement

Abrégé

The invention relates to a self-igniting internal combustion engine (10) having: - a control device (13); - a characteristic map stored therein for different operating modes of the internal combustion engine; wherein: - the characteristic map comprises a lower load range (M) extending from zero load to a lower load limit (U), an upper load range (S) extending from an upper load limit (O) to full load (V), and a transitional range (Ü) extending from the lower load limit to the upper load limit; - the control device accesses the characteristic map in order to set a lean burn in the lower load range and a stoichiometric burn in the upper load range and to maintain the lean or stoichiometric burn already set when in the transitional range. The invention further relates to a method for controlling a self-igniting internal combustion engine, particularly a self-igniting internal combustion engine according to one of the previous claims, wherein the internal combustion engine is operated using a lean burning method at zero load and a lower partial load and using a stoichiometric burning method at full load and an upper partial load, and wherein the shift between the burning methods occurs in a hysteretic fashion.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 41/38 - Commande de l'injection de combustible du type à haute pression

Abrégé

The invention relates to a method for adjusting spring forces of valve springs in relation to engine speed in the valve trains of an internal combustion engine, said valve springs resting on one side on a cylinder head of the internal combustion engine and on the other side on a spring plate connected to the shaft end of a gas exchange valve. Said valve springs are respectively connected in series or in twos in a parallel manner. When the engine speed is at a minimum, one of the valve springs is mechanically blocked in a compressed position, resting on the cylinder head, and when the engine speed is high, both valve springs mounted between the cylinder head and the spring plate are released.

Classes IPC  ?

• F01L 1/46 - Parties constitutives, détails ou accessoires, non couverts par un des sous-groupes précédents
• F01L 3/10 - Connexion des ressorts aux corps de soupapes

Abrégé

The invention relates to a method for operating a hybrid drive system of a vehicle, comprising an internal combustion engine and an electric drive engine, both of which can be selectively used, individually or together, to drive the vehicle. When starting the internal combustion engine in the cruising range, the vehicle previously only been driven by the electric drive machine, the internal combustion engine is accelerated to ignition speed with activated decompression means prior to the activation of the internal combustion engine drive mode.

Classes IPC  ?

• F02D 41/06 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour le démarrage ou le réchauffage du moteur
• B60W 30/18 - Propulsion du véhicule
• B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
• B60W 10/06 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des moteurs à combustion
• B60W 20/00 - Systèmes de commande spécialement adaptés aux véhicules hybrides
• F01M 1/06 - Systèmes de lubrification caractérisés par des vilebrequins ou des bielles comportant des passages pour le lubrifiant, p. ex. des lumières
• F01M 1/00 - Lubrification sous pression

Abrégé

The invention relates to an arrangement for the lubricating oil supply of an internal combustion engine having a crankcase, comprising a pressure oil supply device to the bearing blocks of the crankshaft main bearings, especially having main bearing pins of the crankshaft that are received on rolling bearings, a crankshaft (12) having a plurality of main bearing pins (28, 29, 30) and crank arms (22 to 26) and at least one crank pin (15) lying between two crank arms (23, 24) on which pin a connecting rod (17) is to be arranged. Lubricating oil supply means for a connecting rod bearing (42) on the crank pin (15) comprise at least one oil splash groove (36) which is concentrically arranged to an adjacent main bearing pin (29) on the crank arm (24) and inner channels which extend from there in the crank arm (24) and in the crank pin (15) up to the connecting rod bearing (42). The oil splash groove (36) is obturated by a thrust washer (46), arranged between the bearing block (13) of the main bearing pin (29) and the crank arm (24), and has openings (60), an annular space being defined between the thrust washer (46) and the bearing block (13) into which space the pressure oil supply device of the bearing block (13) runs.

Classes IPC  ?

• F16C 3/14 - Particularités relatives au graissage

Abrégé

The invention relates to an arrangement for the lubricating oil supply of an internal combustion engine having a crankcase, comprising a pressure oil supply device to the bearing blocks of the crankshaft main bearings, especially having main bearing pins of the crankshaft that are received on rolling bearings, a crankshaft (12) having a plurality of main bearing pins (28, 29, 30) and crank arms (22 to 26) and at least one crank pin (15) lying between two crank arms (23, 24) on which pin a connecting rod (17) is to be arranged. Lubricating oil supply means for a connecting rod bearing (42) on the crank pin (15) comprise at least one oil collection groove (36) which is concentrically arranged to an adjacent main bearing pin (29) on the crank arm (24) and inner channels which extend from there in the crank arm (24) and in the crank pin (15) up to the connecting rod bearing (42). The lubricating oil supply means also comprise an oil supply nozzle (38) which is arranged in the crankcase and the outlet opening (51) of which runs into the oil collection groove (36).

Classes IPC  ?

• F16C 3/14 - Particularités relatives au graissage

Abrégé

The present invention relates to an internal combustion engine (1) with an SCR catalytic converter (11) and with a condition monitor (10) of the NH3 level of the SCR catalytic converter, wherein the condition monitor is connected to a first (14) and a second detecting module (15), each of which determines the NH3 level in a different way. In addition, a method for the determination of the NH3 level of an SCR catalytic converter is claimed.

Classes IPC  ?

• B01D 53/94 - Épuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques
• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F01N 11/00 - Dispositifs de surveillance ou de diagnostic pour les appareils de traitement des gaz d'échappement
• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants

Abrégé

The invention relates to a hybrid drive system having a first drive machine (10) - in particular an internal combustion engine - and having two further drive machines (11) - in particular two electric machines - for a motor vehicle, comprising a first gearshift sub-transmission (15) with an input shaft (17) and with a drive output shaft (23) and with a first group of gearshift gearwheel pairs having in each case one gearwheel which is rotationally fixed to the shaft of the transmission and one shift gear which can be selectively coupled to the shaft of the transmission, comprising a second gearshift sub-transmission (16) with an input shaft (18) and with a drive output shaft (24) and with a second group of gearshift gearwheel pairs having in each case one gearwheel which is rotationally fixed to the shaft of the transmission and one shift gear which can be selectively coupled to the shaft of the transmission, wherein the gearshift gearwheel pairs are assigned, in gear sequence, in each case alternately to one of the gearshift sub-transmissions (15, 16), wherein the first drive machine (10), the first input shaft (17) and the second input shaft (18) are in each case drive-connected to one of the elements of a planetary gear set (61) - planet carrier (62), sun gear (64), ring gear (65) - and the further drive machines (11, 12) are in each case rigidly drive-connected to one of the input shafts (17, 18).

Classes IPC  ?

• B60K 6/445 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par l'architecture du véhicule électrique hybride du type série-parallèle du type à distribution par engrenage différentiel
• B60K 6/547 - Transmission pour rapport variable la transmission étant un changement de vitesse à variation discontinue
• F16H 3/00 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif
• F16H 3/72 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif utilisant des engrenages à mouvement orbital avec entraînement secondaire, p. ex. un moteur régulateur, pour faire varier la vitesse d'une manière continue
• F16H 3/12 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital exclusivement ou principalement à engrenages constamment en prise, pouvant être libérés de leurs arbres avec moyens de synchronisation non incorporés dans les embrayages
• B60K 6/48 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par l'architecture du véhicule électrique hybride du type parallèle

Abrégé

The present invention relates to an internal combustion engine (1) having a cam-controlled variable valve train (16) on at least one cylinder (2) for the internal combustion engine (1), comprising a controller (30) for shifting between self-ignition and outside ignition of an ignitable mixture in the cylinder (2), wherein a cam drive (17) comprises at least one first, fixed cam (18) and at least one second, shiftable cam (19), both of which are associated with the same gas exchange valve of the valve train (16). The invention further relates to a method for operating the internal combustion engine (1).

Classes IPC  ?

• F01L 13/00 - Modifications du système de distribution pour permettre l'inversion du sens de marche, le freinage, le démarrage, le changement de taux de compression ou autre opération déterminée

Abrégé

The invention relates to a modeling method for modeling at least one internal combustion engine, preferably an internal combustion engine in a vehicle, wherein: a grey box model made of at least one white box model and at least one black box model is formed, which is embedded in the white box model; and regions of the internal combustion engine are calculated as a white box model, which develop smaller dynamics than those regions calculated as a black box model.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 41/24 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants caractérisée par l'utilisation de moyens numériques

Abrégé

The invention relates to a drive system (1) in which components for a front transverse arrangement in a motor vehicle, such as the clutch (6), shaft (3), and transmission (5), are disposed in a casing (2) that is preferably pot-shaped. The oil is centrally supplied (4) via the shaft (3). An effective centrifugal force allows a certain oil level (7) to be established within the casing (2), said oil level (7) once again being drained by accordingly discharging oil (9), preferably parallel to the shaft (3).

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• B60K 6/365 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les transmissions à engrenages les pignons étant animés d'un mouvement orbital

Abrégé

The invention relates to a method for the operation of a hybrid drive system comprising a first drive machine (11) - particularly an internal combustion engine - and a second drive machine (12) - particularly an electric engine - for a motor vehicle, comprising a first gearshift sub-gearbox (15) having an input shaft (17) that may be coupled to a drive shaft (28) by means of a first group of shifting gearwheel pairs (41/51, 42/52, 43/53, 44/54), wherein the input shaft (17) may be coupled to the first drive machine (11), a second gearshift sub-gearbox (16) may be coupled to an input shaft (18) that may be coupled to the drive shaft (28) by means of a second group of shifting gearwheel pairs (45/51, 46/52, 47/53, 48/54), wherein the input shaft (18) is in a drive connection with the second drive machine (12), wherein some of the gears are represented on the drive shaft by shifting respective individual shifting gearwheel pairs in the flow of force from one of the input shafts (17, 18) to the drive shaft and other gears are represented by subsequent shifting of at least two shifting gearwheel pairs in the flow of force from one of the input shafts (17, 18) via the other input shaft (18, 17) to the drive shaft (28).

Classes IPC  ?

• B60K 6/40 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par l'assemblage ou la disposition relative des organes
• B60K 6/36 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les transmissions à engrenages
• B60K 6/48 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par l'architecture du véhicule électrique hybride du type parallèle
• F16H 3/091 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital exclusivement ou principalement à engrenages constamment en prise, pouvant être libérés de leurs arbres caractérisés par l'agencement des engrenages comportant un seul arbre de renvoi
• F16H 3/12 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital exclusivement ou principalement à engrenages constamment en prise, pouvant être libérés de leurs arbres avec moyens de synchronisation non incorporés dans les embrayages

Abrégé

The present invention relates to a method for adjusting a mass flow of an exhaust gas return of an internal combustion engine, taking into consideration a NOx behavior, wherein a controlling system provides a coupling of a virtual NOx determination with a real NOx control. Furthermore, an internal combustion engine with appropriate controlling means is proposed.

Classes IPC  ?

• F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Abrégé

The present invention relates to a method for operating a motor vehicle internal combustion engine having a controller for adjusting NOx emissions in the exhaust gas, wherein a NOx controller is combined with a combustion controller. A control unit of an internal combustion engine is further proposed, said control unit comprising first control means for performing cylinder pressure-based combustion control, and second control means for performing NOx control, wherein the first and second control means are linked to each other.

Classes IPC  ?

• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures

Abrégé

In order to improve a combustion process of a motor vehicle, the invention provides a method for regulating an injection progression, during which a fuel is injected, wherein at least one first parameter associated with a progression, particularly a combustion progression, is determined during a first combustion cycle, a comparison is performed of the first parameter to a predefinable second parameter, and an adjustment of an injection is carried out via the comparison, particularly via a deviation between the two parameters. The invention further provides a corresponding direct-injecting internal combustion engine.

Classes IPC  ?

• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection

Abrégé

The invention relates to a method for regulating an injection of an injector of a direct-injection internal combustion engine, and to a corresponding device. According to the invention, the regulation is based on a cylinder pressure course stored in relation to the position of the crankshaft. The regulation comprises an entire injection course for at least one cylinder. At the end of the combustion of a first cycle and before the injection of a subsequent cycle, a linear transfer function based on at least one cylinder pressure course stored in relation to a corresponding position of the crankshaft is determined. An injection course for the following cycle is calculated from said transfer function.

Classes IPC  ?

• F02D 35/02 - Commande non électrique des moteurs en fonction des conditions extérieures ou intérieures aux moteurs, non prévue ailleurs des conditions intérieures
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection

Abrégé

The invention relates to a numerical method and associated device for optimizing a throughflow behavior of a flowing fluid, while generating an adjustable cylinder internal flow, utilizing a determination of a swirl intensity of the fluid flowing into a cylinder of a direct-injection four-stroke internal combustion engine when the intake valve is open, for facilitating an optimization of a throughflow behavior and of a cylinder internal flow of a fluid flowing into a reciprocating-piston internal combustion engine, and in particular for improving the quality of the optimization, wherein a numerical map of at least surfaces of the cylinder which delimit the inflowing fluid at least in the cylinder is generated and utilized, and by means of a computer model, a numerical flow simulation of the inflowing fluid when the intake valve is open is carried out taking into consideration thermodynamic boundary conditions, wherein the computer model is based on a cylindrical coordinate system in which a Z axis of the computer model coincides with a cylinder axis, and the swirl intensity is determined from the ratio of at least one tangential speed component, determined in relation to the Z axis, of the flow of the inflowing fluid during its rotation through a disk-shaped or annular volume in the cylinder to a determined second speed.

Classes IPC  ?

• F02B 27/00 - Utilisation de l'énergie cinétique ou pulsatoire de la charge dans les systèmes d'admission ou utilisation des résidus de combustion dans les systèmes d'échappement, pour améliorer la quantité de la charge ou pour accroître l'évacuation des résidus de la combustion
• G01M 9/08 - Modèles aérodynamiques
• G05B 17/00 - Systèmes impliquant l'usage de modèles ou de simulateurs desdits systèmes
• G06F 17/50 - Conception assistée par ordinateur

Abrégé

Method and apparatus for automatic component design optimization in order to simplify simulation-based optimization and in particular to reduce the prototyping effort, wherein, in a first step, an influencing parameter vector is selected automatically in an at least one-dimensional influencing parameter space (2), geometric component coordinates (9) are generated on the basis of this influencing parameter vector in a second step, or geometric component coordinates are taken from a CAD map which is selected from various CAD maps, a numerical simulation of at least one component characteristic (17) is carried out in a third step on the basis of these geometric coordinates (9), the simulated characteristic of the component (15) is assessed automatically in a fourth step, the influencing parameter is changed if necessary in order to optimize the characteristic in a fifth step, and in particular the method is repeated from the second step, until an optimization criterion and/or a termination criterion is/are satisfied, wherein automated design, in particular computer-aided manufacture, of the component (15) is carried out on the basis of geometric component coordinates (9) determined in a second step.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur
• G05B 19/00 - Systèmes de commande à programme

Abrégé

The invention relates to a method for operating a spark-ignition internal combustion engine. According to said method, a fuel is directly injected into a combustion chamber of a cylinder of the internal combustion engine, a fuel quantity to be supplied in an intake cycle being injected at least approximately proportionately to a quantity of fresh air flowing into the cylinder in parallel. The plurality of fuel injection rates are respectively adapted to the air mass flow rates. As the air mass flow rate increases, the injected fuel mass flow increases proportionately. The invention also relates to a corresponding internal combustion engine.

Classes IPC  ?

• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection
• F02D 41/18 - Dispositions de circuits pour produire des signaux de commande en mesurant le débit d'admission d'air

Abrégé

Turbocompressor for an internal combustion engine, in particular a compressor for a turbocharger, having an air-collecting passage (1) for combustion air to be compressed, adjoining which are a main inlet passage (2), at least one auxiliary passage (8) and a rotatably mounted compressor wheel (11), and having an adjustable shut-off member for varying the cross sections of flow in the main inlet passage (2) and in the auxiliary passage (8), wherein the shut-off member is arranged at the transition from the air-collecting passage (1) to the main inlet passage (2) and to the auxiliary passage (8), and wherein the shut-off member controls the cross sections of flow of the main inlet passage (2) and of the auxiliary passage (8) upstream of the inlet of the passages as viewed in the direction of flow.

Classes IPC  ?

• F02B 37/22 - Commande des pompes en modifiant la section des conduits d'échappement ou des conduits d'air
• F02C 6/12 - Turbocompresseurs de suralimentation, c.-à-d. ensembles fonctionnels destinés à augmenter la sortie de puissance mécanique des moteurs à piston à combustion interne en augmentant la pression de suralimentation

Abrégé

The invention relates to a method for operating a motor vehicle exhaust-gas aftertreatment system (1), in which oxygen is fed to and removed from the oxygen tank (8) of an exhaust-gas aftertreatment component (7). According to the invention, the oxygen quantity in the oxygen tank (8) is determined and a rich-lean cycle is influenced in accordance with the determined oxygen quantity. The invention also relates to a motor vehicle exhaust-gas aftertreatment system (1), which permits a temperature regulation of the oxygen tank (8) and/or an uninterrupted desulphation during the transition between a rich operation and a lean operation.

Classes IPC  ?

• F01N 3/08 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs
• F01N 11/00 - Dispositifs de surveillance ou de diagnostic pour les appareils de traitement des gaz d'échappement
• F01N 3/023 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de filtres utilisant des moyens pour régénérer les filtres, p. ex. par combustion des particules piégées
• F02D 41/14 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections à boucle fermée

Abrégé

The invention relates to a method for measuring oxygen-containing nitrogen components, including nitrogen dioxide, in exhaust gases of internal combustion engines, in which method an exhaust gas sample is branched off from an extraction point 10 on the exhaust pipe 1 and is supplied by means of an extraction line 11 to at least one measuring device 5, wherein a separate extraction point 10 and extraction line 11 are provided for measuring the oxygen-containing nitrogen components, and in that, in order to measure the oxygen-containing nitrogen components, the exhaust gas sample is set to a temperature at which the possibility of a reaction between nitrogen dioxide and soot is low.

Classes IPC  ?

• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes

Abrégé

In order to improve a combustion process of a motor vehicle, in particular with regard to emissions and/or the development of noise, a method for regulating an injection profile is provided, in which method a fuel is injected directly into a combustion chamber, wherein the regulation brings about a change in the injection profile (23) at least during a first work cycle on the basis of at least one parameter which is recorded during the first work cycle. Furthermore, a corresponding direct-injection internal combustion engine is provided.

Classes IPC  ?

• F02D 41/38 - Commande de l'injection de combustible du type à haute pression
• F02D 41/40 - Commande de l'injection de combustible du type à haute pression avec des moyens pour commander la synchronisation ou la durée de l'injection

Abrégé

The invention relates to a direct-injection spark ignition internal combustion engine which comprises a three-way catalyst and an SCR catalyst. Said engine is provided with a device in which a control or regulation is stored which adapts the supply of ammonia-containing reducing agent for reducing the nitrogen oxide to a sudden load variation. The invention also relates to a method allowing the supply of ammonia-containing reducing agent to be adapted to a sudden load variation.

Classes IPC  ?

• F01N 3/20 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs par conversion thermique ou catalytique des composants nocifs des gaz d'échappement caractérisés par les méthodes d'opérationCommande spécialement adaptés à la conversion catalytique
• F02D 41/30 - Commande de l'injection de combustible
• F01N 13/02 - Silencieux ou dispositifs d'échappement caractérisés par les aspects de structure ayant plusieurs silencieux séparés en série

Abrégé

The invention relates to a combustion chamber arrangement of a direct-injection diesel engine having an air-distributing combustion method with jet-controlled mixture formation, and to an associated method for improving a fuel distribution in the combustion chamber, comprising a piston (2) and at least one central injector (5), by means of which central injector (5) at least one first (6) and one second jet (7) can be injected from in each case one outlet opening of the central injector (5) into a combustion chamber, and which central injector (5) is situated facing a piston surface of the piston (2), wherein the piston surface has at least one depression (3) which, on a side (10) which is adjacent to a periphery of the piston (2), has at least one concave (12) and, adjoining the latter, one convex depression contour (11) as viewed from the direction of the central injector (5), wherein the convex depression contour (11) forms an undercut of the depression (3), wherein a common impingement region (16) of the first jet (6) and of the second jet (7) is provided between an apex (13) of the convex depression contour (11) and of the concave depression contour (12) or at an edge, which is remote from the convex depression contour (11), of the concave depression contour (12), wherein the concave depression contour (12) is shaped such that the first (6) and the second jet (7) flow back at least partially in the direction of the central injector (5).

Classes IPC  ?

• F02B 23/06 - Autres moteurs caractérisés par des chambres de combustion d'une forme ou d'une structure particulières pour améliorer le fonctionnement avec allumage par compression l'espace de combustion étant disposé dans le piston moteur