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Matches 1 - 50 out of 2,103

Document Document Title
WO/2017/153665A1
The invention relates to a method for optimizing the consumption of reducing agent in the form of ammonia in an exhaust line (1) comprising first and second selective catalytic reduction systems (2, 3), the second system (3) being locate...  
WO/2017/155873A1
Sensing combustion events using a resistive based oxygen sensor exposed to exhaust gases of a periodic combustion process in a combustion engine. The oxygen sensor is disposed in the exhaust plenum of the engine and includes a metal oxid...  
WO/2017/151967A1
A control system for use in a fluid flow application is provided. The control system includes a heater having at least one resistive heating element. The heater is adapted to heat the fluid flow. The control system further includes a con...  
WO/2017/151966A1
A heater system (20) for an exhaust system (18) is provided. The heater system (20) includes a heater (28) disposed in an exhaust conduit (32). The heater (28) includes a plurality of heating elements (38) disposed in the exhaust conduit...  
WO/2017/151959A1
A control system for a heating system of an exhaust system is provided. The control system includes at least one electric heater disposed within an exhaust fluid flow pathway, and a control device adapted to receive at least one input se...  
WO/2017/144222A1
The invention relates to a method for operating a lambda probe (20) in an exhaust gas channel (12) of an internal combustion engine (10), wherein the lambda probe (20) is arranged in the exhaust gas channel (12) upstream of a catalyst (1...  
WO/2017/138873A1
The invention relates to a method for diagnosing exhaust sensors, where at least one substance (NOx) resulting from combustion is reduced by supplying an additive. A first sensor subjected to the exhaust gas stream is intended to measure...  
WO/2017/129510A1
The invention relates to a method for the quality assurance of exhaust gas behaviour in a motor vehicle (100), particularly in a hybrid vehicle, comprising: monitoring (10) an on-board-diagnosis (OBD) function (110); providing (20) a jou...  
WO/2017/131086A1
This regeneration control device for an exhaust gas treatment device is provided with: a DOC blockage danger condition determination unit for determining, on the basis of a comparison between a threshold value and a counter value pertain...  
WO/2017/127283A1
An apparatus includes a pump, a delivery mechanism in fluid communication with the pump, and a controller communicatively coupled to the pump and the delivery mechanism. The controller is structured to interpret, via a pump diagnostic ci...  
WO/2017/119836A1
The invention relates to a method for determining a performance of a particulate filter of an engine, said method comprising the steps of: - determining (s410) at least one exhaust gas temperature (T1mod; T1meas; T2mod; T2meas) upstream ...  
WO/2017/117103A1
A method of recovering selective catalytic reduction catalysts relates to metal-Zeolite based catalysts. A selective catalytic reduction catalyst service event where a metal-Zeolite based selective catalytic reduction catalyst of an exha...  
WO/2017/116060A1
One embodiment of the present invention relates to a system for supplying a reducing agent, and the system for supplying the reducing agent comprises: a urea decomposition chamber into which a fluid flows; a urea spray nozzle for sprayin...  
WO/2017/108314A1
The invention relates to a planar ceramic sensor element for a gas sensor for detecting particles in a gas, comprising an interdigital electrode (14, 16) which can be exposed to the gas, an electric heating element (40) which is designed...  
WO/2017/097776A1
Method of analyzing flow of reductant through the injector In a selective catalytic reductant dosing system including a reductant injector adapted to inject liquid reductant into an exhaust line, comprising: i) determining a measure of t...  
WO/2017/097557A1
The invention relates to a method for operating a nitrogen oxide sensor of a vehicle, having a first nitrogen oxide sensor, a second nitrogen oxide sensor, and a catalytic converter, wherein one of the two nitrogen oxide sensors is arran...  
WO/2017/098154A1
The invention proposes a method for diagnosing an SCR catalyst of an internal combustion engine fitted with a low-pressure EGR loop removing exhaust gas downstream from the catalyst. The diagnostic criterion is a function of the differen...  
WO/2017/095684A1
A system comprises an engine including a plurality of cylinders. A first intake throttle is positioned upstream of a first set of cylinders of the plurality of cylinders. The first intake throttle provides air at a first flow rate to the...  
WO/2017/087064A1
A system includes an exhaust treatment system (6) configured to treat emissions from a combustion engine (12) via a catalyst (14). The system includes a controller (24) configured to obtain an operating parameter indicating catalyst perf...  
WO/2017/087402A1
An apparatus includes an exhaust analysis circuit and a sensor diagnostics circuit. The exhaust analysis circuit is structured to interpret first oxygen data acquired by a first sensor indicative of a first amount of oxygen in an exhaust...  
WO/2017/086942A1
A method for correcting for aging in particulate matter sensors for a diesel engine includes calculating calculated particulate matter values for a modeled diesel engine exhaust system over a period of time, measuring measured test parti...  
WO/2017/077002A1
It is proposed a method for monitoring a chemical agent concentration in a chemical solution stored in a tank of a system of a motor vehicle, the system comprising a pump driven by a motor wherein the pressure of the pump is controlled b...  
WO/2017/077212A1
The invention relates to a method for estimating a volume of a reducing agent in liquid form (21) in a container (7) of a selective catalytic reduction system, the reducing agent being at least partially frozen (20), wherein temperature ...  
WO/2017/074252A1
The present invention relates to a method for restricting work produced in a combustion chamber (101), wherein a substance (NOx) resulting from combustion is reduced by supplying additive comprising a reagent to the exhaust gas stream (1...  
WO/2017/074089A1
One embodiment of the present invention relates to a management device of a selective catalytic reduction system and a control method therefor, and the management device for a selective catalytic reduction system comprises: a detection u...  
WO/2017/074251A1
The present invention relates to a method for restricting work produced by combustion in a combustion chamber (101), wherein an aftertreatment system (130) is arranged for reduction of at least one substance (NOx) resulting from said com...  
WO/2017/074253A1
The present invention relates to a method for determining when to correct supply of additive to an exhaust gas stream resulting from combustion in at least one combustion chamber (101), wherein the additive is arranged for reduction of a...  
WO/2017/063987A1
An internal combustion engine produces exhaust gas that can be treated using a catalytic converter and a particulate filter. A method for ascertaining the particle load (210) on the particulate filter comprises steps (230, 235) of ascert...  
WO/2017/065815A1
One or more light sources (108, 110) emit light within first, second, and third wavelength ranges through exhaust gas (102). The first and second wavelength ranges are characterized by first and second different absorption wavelength ran...  
WO/2017/065871A1
A traffic pollution indicator mounts to an air vent of a car or other vehicle to detect pollution and present pollution information to passengers. The traffic pollution indicator includes one or more sensors for detecting pollution, one ...  
WO/2017/064204A1
A method of determining one physicochemical parameter of a chemical agent in a fluid is provided the method comprising the steps of: providing a pressurized fluid of said chemical agent upstream of a dosing unit in a line; changing the o...  
WO/2017/060578A1
The invention relates to a method for diagnosing a SCR catalyst, comprising at least the steps of: determining (120) the effectiveness (ε) of the catalyst; comparing (130) said effectiveness (ε) with a first threshold (ε1); and deemin...  
WO/2017/060020A1
The invention relates to a supply module (1; 2; 3), in particular for providing a fluid reducing agent (6), comprising a base plate (10) and a cover plate (12) which is arranged at a distance above the base plate (10) such that a hollow ...  
WO/2017/050814A1
A diesel exhaust fluid (DEF) delivery system and method for operating same. The method includes controlling a pump to operate at an idle speed to pressurize a pressure line. The method includes controlling a backflow dosing module (BFDM)...  
WO/2017/045822A1
The present invention discloses an operating liquid container system comprising at least one operating fluid container (10), a quality and/or filling level sensor (70), which is arranged in the operating liquid container (10), for determ...  
WO/2017/039268A1
An exhaust gas purifying system comprises: a reduction agent injecting module installed on a housing to inject a reduction agent into the housing, the housing capable of being mounted on an exhaust pipe through which exhaust gas from an ...  
WO/2017/034583A1
An aftertreatment system comprises a particulate filter configured to filter PM possessing a predetermined, least effective size range included in an exhaust gas flowing through the aftertreatment system. A PM sensor assembly is position...  
WO/2017/005347A1
The invention relates to a method for operating an exhaust after-treatment system (3) comprising an SCR-catalyst (7), a metering device (9) for dosing a reducing agent being controlled on the basis of a determining variable (26) that inf...  
WO/2017/005348A1
The invention relates to a method for operating a system comprising an internal combustion engine (1) and an exhaust aftertreatment system (3) having an SCR catalyst (7), wherein the internal combustion engine (1) is controlled on the ba...  
WO/2016/202435A1
The invention relates to a method for operating an exhaust gas aftertreatment system (3), having the following steps: - determining a permissible energy input into at least one exhaust gas aftertreatment element (7) of the exhaust gas af...  
WO/2016/197181A1
This invention provides a highly-selective and sensitive Nitrogen oxide gas sensor based on the resistive transducing platforms using two-dimensional (2D) tin disulphide (SnS2) flakes that can operate below 150 °C. This sensor operates ...  
WO/2016/200132A1
A particulate matter sensor is provided. A particulate matter sensor according to an exemplary embodiment of the present invention comprises: an insulating substrate; a first electrode unit that is formed on a surface of the insulating s...  
WO/2016/188809A1
There is provided control apparatus for a motor vehicle, the apparatus comprising: control means (10); and pressure sensor means (9) for measuring a pressure difference between first and second locations (159A, 159B) of an engine aftertr...  
WO/2016/182895A1
Systems for reducing air consumption for aftertreatment systems by selectively supplying air from an air supply may selectively control a valve to enable or disable air supplied to a dosing module. A system may include an air supply, a d...  
WO/2016/179623A1
The invention relates to a method for flushing an exhaust-gas cleaning system (3) of an internal combustion engine (4), which exhaust-gas cleaning system comprises a catalytic converter (1) having at least one catalyst bed (2), wherein a...  
WO/2016/178505A1
The present invention relates to a particulate material sensor, i.e., a sensor for detecting particulate materials such as soot inside the exhaust pipe of a vehicle. To achieve the above objective, a particulate material sensor according...  
WO/2016/178648A1
An auto-calibration controller configured to automatically tune a dosing unit of an aftertreatment system. The auto-calibration controller is configured to command the dosing unit to dose reductant at a first dosing command rate at a fir...  
WO/2016/166926A1
An exhaust purification system of an internal combustion engine comprises an exhaust purification catalyst (20), a downstream side air-fuel ratio sensor (41) and a control device (31). The control device performs a feedback control of th...  
WO/2016/156254A1
The invention relates to a method for operating a probe having a pumped reference cell. A first time (T1) is determined, at which a pulse-width-modulated pump current applied to the reference cell is switched on. In accordance with the f...  
WO/2016/153410A1
Invention regards an apparatus (5) at least in part to be arranged in a channel (12) for exhaust gas discharged from a combustion engine (4). The apparatus (5) comprises a particulate filter (15) arranged to collect particulate matter pr...  

Matches 1 - 50 out of 2,103