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WO/2007/137783A1 |
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 invent...
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WO/2007/137642A1 |
The invention relates to a bivalent internal combustion engine and to a method of operating a bivalent internal combustion engine having an exhaust system which has at least one catalytic converter, wherein the internal combustion engine...
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WO/2007/128593A1 |
The present invention relates to a method and a device for the diagnosis of the effectiveness of a catalytic converter in the exhaust gas line of an internal combustion engine when using a very late afterinjection or secondary injection....
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WO/2007/128937A2 |
The system to monitor the operating status of a catalytic device comprising two catalytic oxidation components (3, 4) arranged in series in the exhaust line (1) of an internal combustion engine (2), comprises an electronic control unit (...
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WO/2007/129203A1 |
One concept relates to a method of controlling fuel reforming within an internal combustion engine exhaust line. Fuel injections are controlled using a predicted temperature, the predicted temperature being a temperature that would occur...
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WO/2007/118604A1 |
The invention relates to a device for monitoring an exhaust gas catalytic converter in the exhaust system of an internal combustion engine. Provided for this purpose is a measuring arrangement (10) which is arranged in the exhaust system...
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WO/2007/119013A1 |
The invention proposes an engine (11) comprising a catalytic converter (12c), a first probe (120) able to deliver a first signal (Vsp) proportional to the oxygen content of an exhaust gas and installed upstream of the converter, a second...
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WO/2007/113677A1 |
An exhaust gas purification system includes: a catalyst (3) provided in an exhaust gas passage of an internal combustion engiue (1) and having a carrier containing a basic oxide and platinum carried on the carrier; a catalyst (4) for pur...
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WO/2007/113679A2 |
An exhaust gas purification system includes: at least two catalysts (1a, 1b) disposed in parallel with each other on an exhaust gas passage of an internal combustion engine (3) and having a carrier containing a basic oxide and platinum c...
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WO/2007/105830A1 |
A determining section integrates amount of oxygen that is stored in or released from a exhaust gas purifying catalyst (35) from when a signal from an oxygen sensor (57) is changed until when the signal is changed subsequently/ thereby ca...
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WO/2007/101761A1 |
In order to operate an internal combustion engine, a combustion process is controlled in at least one combustion chamber of the internal combustion engine for the purpose of performing a check (CHECK) on an emission reduction system of t...
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WO/2007/099429A1 |
An exhaust purification system for an internal combustion engine has a hydrogen concentration sensor (2) disposed upstream of a catalytic converter (1) in the engine exhaust system to detect a hydrogen concentration in the exhaust gas. A...
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WO/2007/093501A1 |
The invention relates to an internal combustion engine comprising at least one cylinder and an exhaust gas tract, which contains a component to be protected. An estimated dynamic component temperature of the component to be protected is ...
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WO/2007/093749A2 |
The invention relates to a method and a device for purging an injector in a fuel injector system of use in the regeneration of a particle filter. The aging of the fuel is determined and compared with a fuel aging threshold value and a pu...
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WO/2007/085654A1 |
The invention relates to a secondary air device for heating an exhaust gas catalyst, comprising a secondary air charger having a turbine and a compressor, the turbine being arranged in a bypass leading to the throttle valve of the intern...
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WO/2007/073861A1 |
Disclosed is a method for diagnosing a secondary air conducting device in a motor vehicle. Methods known in prior art have the disadvantage that the engine speed increases audibly, although only minimally and for a short time, when the d...
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WO/2007/073324A1 |
The invention relates to a monitoring method and a monitoring arrangement, wherein: a) first comparison value is established based on information from a sensor (11) as to the measured magnitude of a parameter related to exhaust gases flo...
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WO/2007/065854A1 |
The invention relates to a method for the diagnosis of a catalyst (115) arranged in the exhaust gas region (113) of an internal combustion engine (110), said method involving the determination of the oxygen storage capacity (O2_Sim) of t...
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WO/2007/065852A1 |
The invention relates to a method for the diagnosis of a catalytic converter (115) which is arranged in the exhaust area (113) of an internal combustion engine (110), which rests on the determination of the oxygen-storage capacity (02_Si...
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WO/2007/065770A1 |
Disclosed are a method and a device for diagnosing a catalytic converter (15, 16, 17) located in a exhaust gas flow (ms_abg). Said method and device are based on an evaluation of the hygroscopic properties of the catalytic converter (15,...
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WO/2007/065853A1 |
The invention relates to a method for the diagnosis of a catalytic converter (115) which is arranged in the exhaust area (113) of an internal combustion engine (110), which rests on the determination of the oxygen-storage capacity (02_Si...
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WO/2007/065855A1 |
The invention relates to a method for the diagnosis of a catalytic converter (115) which is arranged in the exhaust area (113) of an internal combustion engine (110), which is rests on the determination of the oxygen-storage capacity (02...
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WO/2007/063235A1 |
The invention relates to a system for determining the level of sulphur poisoning of depollution means integrated into the exhaust line of a motor vehicle engine, said system being associated with means for controlling the operation there...
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WO/2007/060351A1 |
The invention concerns a system for periodic regeneration of a nitrogen oxide catalytic trapping device (1), comprising a catalytic phase, and traversed by the exhaust gases (2) of an internal combustion engine (3) of a motor vehicle (4)...
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WO/2007/060900A1 |
The air-fuel-ratio control apparatus for an internal combustion engine obtains a composite air-fuel ratio abyfs from a downstream-side correction value Vafsfb(k) based upon an output value Voxs from a downstream air-fuel-ratio sensor 67 ...
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WO/2007/054416A1 |
An internal combustion engine according to the invention has a plurality of cylinders and an exhaust tract into which a mixture which is situated in the respective cylinder is introduced in the respective discharge strokes. According to ...
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WO/2007/042693A1 |
The invention concerns a method for estimating the exhaust temperature on an output of an internal combustion engine cylinder, said cylinder comprising a crankshaft transforming into a rotation a translational movement of a piston mounte...
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WO/2007/037730A1 |
A diagnostic method for testing malfunction of a Selective Catalytic Reduction (SCR) exhausts aftertreatment system of an internal combustion engine. The method measures and registers a first mean NOx sensor value for a normal mass flow ...
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WO/2007/035354A2 |
An emission control system is provided for an engine for reducing NOx emissions, the system comprising an ammonia injector, a controller (1) for controlling the ammonia injector and a catalyst (19), wherein the controller (1) includes a ...
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WO/2007/034097A2 |
The invention concerns a system for regenerating a catalytic particulate filter (3) located in a diesel engine exhaust line (1), comprising an electronic control unit (11), a controlled fuel injector (6) arranged upstream of the catalyti...
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WO/2007/031599A1 |
A method and arrangement in connection with a piston engine (1) provided with a turbocompressor (2), in which method combustion air is pressurized with a compressor (3), fuel is combusted in the cylinders (10) of the engine (1) with comb...
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WO/2007/028681A1 |
The invention relates to a method for operating an internal combustion engine (10), in the exhaust gas section (13) of which is arranged at least one SCR catalytic converter (16), which is hit with a reagent that contributes to NOx conve...
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WO/2007/025626A1 |
The invention relates to a method for monitoring an exhaust gas purifying component that can store gases and is used for purifying exhaust gases of an internal combustion engine. The exhaust gas purifying component is provided with a gas...
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WO/2007/018658A1 |
A system (1) and method for detecting soot and or ash loading within a filter (16) is provided. The method comprises the steps of transmitting a source RF signal (52) through a filter (16), measuring a reflected RF signal (46), measuring...
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WO/2007/012597A1 |
The invention is distinguished by a method and a corresponding device for diagnosis of an individual catalytic converter (7) of an exhaust gas purification unit assigned to an internal combustion engine (1) in the Y configuration, despit...
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WO/2007/008121A1 |
The invention relates to a method, device and computer program product for diagnosing of a NOx-reducing catalyzer (4, 64, 94, 84a, 84b) that can be regenerated and/or of a three-way valve (69, 99, 89) for directing the flow of exhaust ga...
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WO/2006/136754A2 |
A regeneration control method for a particle filter of an internal combustion engine exhaust line consists in determining operating data items of the particle filter, wherein said data items are at least one representative inside tempera...
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WO/2006/128782A1 |
According to the invention, an exhaust gas catalytic converter is laden with oxygen until it is saturated at least upstream of an exhaust gas probe. A predefined first rich air/fuel ratio (LAM1&lowbar SP) is set in a combustion chamber o...
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WO/2006/123761A1 |
The present invention is directed to an exhaust gas purification system for an internal combustion engine (1) that performs high pressure PM filter regeneration process by decreasing the degree of opening of an exhaust throttle valve (12...
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WO/2006/118678A1 |
A particulate sampling system (18) is disclosed. The particulate sampling system may include an exhaust sampling unit (24) and a dilution flow assembly (26) to supply dilution air to the exhaust sampling unit. The particulate sampling sy...
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WO/2006/116787A2 |
The invention relates to a method for identifying reactive gas constituents in the exhaust gas of an internal combustion engine having a number of cylinders, involving the following steps: detecting the temporal progression of at least o...
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WO/2006/108580A1 |
The invention relates to a method for adjusting an exhaust gas turbocharger (2) for a supercharged internal combustion engine (1), the method including a speed limit. The invention is characterized by setting a highest admissible speed (...
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WO/2006/109819A1 |
An electronic controller (6l) integrates a rate of progress (dK) of thermal degradation of exhaust purifying catalyst (42A, 43A) at every predetermined time period, to calculate degree of thermal degradation (K) of the exhaust purifying ...
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WO/2006/109820A1 |
Whether discharge of high-concentration, unburned fuel is indicated or not is determined based on air-fuel ratio AF, calculated air-fuel ratio AFc and exhaust temperature thco (S110, S112, S114). If it is determined that high-concentrati...
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WO/2006/109755A1 |
The exhaust gas purifier includes a fuel addition valve (71), an NOx catalytic converter (72), and a catalyst loaded PM filter (73). The catalyst temperature of catalyst loaded PM filter (73) is increased to a target temperature by addin...
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WO/2006/110071A1 |
A method for diagnosing the presence of an internal combustion engine (10) exhaust aftertreatment component (12) on a vehicle. The exhaust temperature is measured downstream the aftertreatment component (12) continuously over a time peri...
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WO/2006/098526A1 |
An object of the present invention is to perform removal of NOx in an exhaust gas purification system for an internal combustion engine equipped with an NOx catalyst while suppressing the consumption amount of reducing agent used for NOx...
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WO/2006/097231A2 |
The invention concerns a method including the following steps: determining characteristics (N0, MAF0) of an exhaust temperature TEG0 corresponding to a positioning CAM_IN0 of the intake camshaft and to a positioning CAM_EX0 of the exhaus...
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WO/2006/097646A1 |
The invention relates to a device for monitoring the operating mode of an element that is used for the aftertreatment of exhaust gases from an internal combustion engine and to an associated method. The inventive device comprises a contr...
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WO/2006/084742A1 |
Disclosed is a method for positioning a sensor (9) in a honeycomb element (1) which is provided with hollow spaces (3) that can be penetrated at least in part by an exhaust gas. Said method is characterized in that the sensor (9) is plac...
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