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WO2003074847B1 |
An exhaust emission control system having an internal combustion engine, a filter, and an exhaust pipe, a method of manufacturing a filter suitable for the system, and a method of calculating the pressure loss of the filter, the system c...
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WO/2004/015249A1 |
A particulate increase amount in a predetermined period is obtained as first difference data (DX) according to first estimation data (D2) from a first estimation calculation section (52) based on a pressure difference &Dgr P before and a...
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WO/2004/013474A1 |
The invention relates to a method for adapting the control of a motor and to control of a motor, obtained according to said method, in relation to the thermal stress on a catalytic converter. In a stationary and/or non-stationary operati...
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WO/2004/013475A1 |
The invention relates to a device (10) for measuring the temperature of a catalytic converter (12) that is traversed by an exhaust gas (18) of an internal combustion engine (14). Said device comprises at least one image recording device ...
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WO/2004/007922A1 |
The invention relates to a method for artificially ageing a catalytic converter (6), used on a testing bench, for converting exhaust gases comprising at least one component from the group consisting of components containing C, HC and NOx...
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WO/2004/003355A1 |
Disclosed is a method for monitoring an exhaust gas system of a motor vehicle comprising an internal combustion engine (1) and a monitoring electronic unit (7). According to the inventive method, a temperature sensor (6) is disposed at t...
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WO/2003/106823A1 |
The invention concerns a method for regenerating a motor vehicle particle filter (26) which consists in using means for regenerating the filter when the load value exceeds a predetermined threshold. It further consists in calculating a p...
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WO/2003/105999A1 |
The invention relates to a method for testing a catalytic converter (4), which uses ammonia for the selective catalytic reduction of nitrogen oxides in flue gases (10). Catalytic converters (1) of this type are assembled from a multitude...
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WO/2003/100225A1 |
A method and an apparatus to reduce the emissions of an exhaust stream are provided. One feature of the present invention includes a control unit (1) for metering a quantity of reagent into the exhaust stream. One embodiment of the prese...
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WO/2003/091552A1 |
The invention relates to a method for assessing the operability of a catalytic converter (7) mounted in the exhaust gas system (6) of an internal combustion engine (1). The inventive method comprises the following steps: recording the si...
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WO/2003/091553A1 |
The invention relates to a device for determining a malfunction in a filter that purifies a gas stream, in particular that eliminates soot particles from an exhaust gas stream. Said device comprises a chamber (1), which can be introduced...
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WO/2003/086580A1 |
An apparatus and method for filtering particulate from an internal combustion engine by use of monolithic particulate trap systems having porous walls (2c, 24c). The porous walls (2c, 24c) filter the particulate. The filtered particulate...
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WO/2003/087550A1 |
Disclosed herein is a method and apparatus for controlling a process, such as a chemical reaction, that emits a multi-component mixture of gases; and for controlling a device to which is transmitted a product of a chemical reaction that ...
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WO/2003/083274A1 |
A method of deciding on catalyst deterioration in an exhaust gas decontamination system, which method enables making an accurate decision on the state of deterioration of catalyst caused by sulfur poisoning in a NOx purging system using ...
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WO/2003/083273A1 |
A NOx purging system using a direct reduction type NOx catalyst, wherein sulfur is purged while avoiding the occurrence of secondary sulfur poisoning, taking advantage of capability of recovery from deterioration caused by sulfur poisoni...
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WO/2003/083272A1 |
An exhaust gas decontamination system capable of, at the time of reactivation of deteriorated catalyst with respect to sulfur poisoning of a direct reduction type NOx catalyst disposed on an upstream side, effecting combustion removal of...
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WO/2003/072916A1 |
If the amount of fuel added to exhaust gas becomes excessive as a result of an abnormality of an addition agent supply unit (60), the air-fuel ratio of exhaust as decreases. If an exhaust gas air-fuel ratio obtained from a value output f...
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WO/2003/040528A1 |
A method for the control of secondary air amounts on a motor vehicle with a device (3,4,5,6) for secondary air injection is characterised in that the increase in injected secondary air is controlled with time such as to change dependent ...
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WO/2003/036053A1 |
After the start of operation of an engine (1), the characteristic change of a humidity sensor (19) is detected on the basis of the transition characteristic of output date from the humidity sensor (19) with respect to integrated water qu...
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WO/2003/031782A1 |
An improved NOX control for an internal combustion engine having an exhaust system with a NOX storage catalyst (105) includes a gas composition sensor (110) upstream of the NOX catalyst. Whether the NOX catalyst is storing NOX onto the c...
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WO/2003/027466A1 |
According to the invention, the exhaust gases of an internal combustion engine are supplied to a catalyst. The invention aims at reducing fuel consumption with a novel catalyst, and at achieving a high degree of conversion with a used ca...
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WO/2003/025355A1 |
The invention concerns a method for controlling an engine exhaust system (1) comprising a particulate filter (6) coated with a catalytic phase, which consists in actuating regeneration assisting means in accordance with specific criteria...
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WO/2003/023202A1 |
A deteriorated state evaluation device for exhaust emission control equipment, wherein a humidity sensor (4) is installed on the downstream side of the exhaust emission control equipment having a hydrocarbon adsorbing catalyst (2) and an...
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WO/2003/021090A1 |
A deteriorated state evaluation device of an exhaust emission control equipment, wherein, after the operation of an engine (1) is started, the state in which a humidity represented by an output from a humidity sensor (19) on the downstre...
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WO/2003/016686A2 |
A method and system detects the function of a catalytic converter in a vehicle using data received from an open path emissions sensor. The factors considered include whether the vehicle moving on a road is operating in a closed loop oper...
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WO/2003/014620A1 |
The present application relates in general to an apparatus (1) and to methods for testing the performance of an automotive catalytic converter (170) under conditions simulating those which occur in motor vehicles over extended driving co...
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WO/2003/012272A1 |
A system and method for controlling an internal combustion engine (120) by monitoring exhaust back pressure (126) and take remedial action when the exhaust back pressure exceeds a corresponding threshold. The system and method respond to...
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WO/2002/097255A1 |
A compression ignition internal combustion engine, comprising a combustion chamber (16) allowing air and fuel supplied therein, an intake valve (19a) opening and closing a passage between an intake port (6) communicating with the combust...
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WO/2002/095199A1 |
The invention relates to a sensor (40) for monitoring and controlling catalysts, especially motor vehicle catalysts, and to a method for controlling the operation of a catalyst, especially a catalyst used in emission purification systems...
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WO/2002/084086A1 |
In an internal combustion engine (100) having an exhaust gas passage (1) where an NO¿x? absorption reduction catalyst (2) is disposed, an oxygen sensor (3) is provided on the downstream side of the NO¿x? absorption reduction catalyst (...
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WO/2002/075125A1 |
The invention relates to a method of producing a metal honeycomb body (1), comprising at least partially structured (2) pieces of sheet metal (3), with channels (4) that are especially adapted for an exhaust gas of an internal combustion...
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WO/2002/075128A1 |
The invention relates to a method and to a device for monitoring an exhaust gas treatment system, especially an oxidation catalyst. The invention is characterized in that an error is recognized when, in a defined operational state, an op...
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WO/2002/075126A1 |
The invention relates to a method of the production of a honeycomb body (7) with a given number (n) of sheet layers (18) from at least one feed roll (1), of which at least a part are at least partly structured sheet layers (18), which le...
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WO/2002/073011A1 |
The invention relates to a method and to a device for monitoring a signal, especially a pressure signal that characterizes the pressure potential at the inlet and the outlet of an exhaust gas aftertreatment system. The device detects any...
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WO/2002/070116A1 |
A method of raw exhaust drawn from a raw exhaust stream (16) is mixed with a diluting gas in a predetermined constant proportion by introducing the raw exhaust sample and diluting gas into respective inlet means and passing the raw exhau...
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WO/2002/070873A1 |
An internal combustion engine diagnosing device, comprising a catalyst for purifying exhaust gases and a catalyst temperature detector for detecting the temperature of the catalyst installed in the exhaust gas flow path of an internal co...
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WO/2002/068807A1 |
An exhaust gas purifier for internal combustion engines comprises an exhaust gas purifying means (40) capable of reducing the amount of harmful substance in exhaust gases under predetermined exhaust gas pressure conditions, and an exhaus...
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WO/2002/066803A1 |
The invention relates to a device and a method for detecting a temperature variable, especially a temperature variable characterizing the state of an exhaust gas post-treatment system of an internal combustion engine. The temperature var...
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WO/2002/066802A1 |
The invention relates to a device and a method for controlling an internal combustion engine, especially an internal combustion engine having an exhaust gas post-treatment system. On the basis of operating parameters which characterize t...
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WO/2002/053892A1 |
A controller, for the diagnosis of a catalyst (7) in the exhaust of an internal combustion engine (1) with means for determining the catalyst temperature (12), is disclosed, the diagnostic method of which is carried out depending upon th...
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WO/2002/052130A1 |
The invention relates to a method and a device for determining the performance of a secondary air-charge assembly for an internal combustion engine. The aim of the invention is to determine the amount of supplied secondary air in the sec...
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WO/2002/044531A1 |
The inventive method for monitoring a particle filter system in the exhaust gas train of an internal combustion engine provides that the load state of the particle filter is determined respectively by a first method, which is independent...
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WO/2002/038923A1 |
The invention relates to a method and device for controlling an exhaust gas aftertreatment system, in particular, of an internal combustion engine. In a first operating state, a first quantity (SIMP), which characterizes the quantity of ...
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WO/2002/033235A2 |
The invention relates to a method and device for diagnosing the storing properties of a NOx storage catalyst (1) which is disposed in the exhaust gas channel of an internal combustion engine (2). During a storage phase, the NOx catalyst ...
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WO/2002/031324A1 |
An exhaust emission control device of an internal combustion engine, comprising a particulate filter (6) disposed in an engine exhaust system (3), a fresh air amount detection means (5) for detecting the amount of fresh air led into an e...
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WO/2002/027162A1 |
The invention concerns a method for controlling a particle filter (14) equipping an internal engine exhaust line (10), which consists in regenerating the filter (14) by particle combustion. The invention is characterised in that it deter...
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WO/2002/014658A1 |
The invention relates to a method for determining the state of a nitrogen oxide (NOx) storage catalyst (12') on an internal combustion engine (1), whereby, during a storage phase (E) in which nitrogen oxides (NOx) emitted by the internal...
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WO/2002/014828A2 |
The aim of the invention is to enable the performance of an exhaust gas analysis, in a manner that is largely automatic, on motor vehicles having an on-board engine control and diagnostic system (OBD) and equipped with a diagnostic inter...
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WO/2002/014659A1 |
The invention relates to a method and model for modeling an elimination phase of a nitrogen oxide (NOx) accumulating catalytic converter (12') of an internal combustion engine (1), especially of a motor vehicle. Said NOx accumulating cat...
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WO/2002/008581A2 |
An exhaust gas purification apparatus, for an engine (1) having a combustion chamber (5), comprising an exhaust passage (10), a particulate filter arranged in the exhaust passage for removing particulate in exhaust gas exhausted from the...
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