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Patent Searching and Data


Matches 1 - 50 out of 3,312

Document Document Title
WO/2019/105859A1
The invention relates to a method for operating an exhaust gas aftertreatment system of an internal combustion engine and to a corresponding exhaust gas aftertreatment system. The method relates to the checking of an SCR particle filter ...  
WO/2019/091661A1
The invention relates to a method for operating a particle filter (1) of a vehicle, in which ash is introduced into a filter body (3) of the particle filter (1) in which at least one ash former (8) is combusted. The ash is formed in the ...  
WO/2019/086201A1
The invention relates to a method for the regeneration of a soot particle filter (9), which is arranged on the outlet side of an internal combustion engine (1), said method comprising the following steps: detecting a loading value of the...  
WO/2019/086161A1
The invention relates to an exhaust tract (12) for an internal combustion engine (2), having at least one first exhaust gas purification element (16) and a second exhaust gas purification element (20) arranged downstream of the first exh...  
WO/2019/086333A1
Disclosed is a method for operating an exhaust gas system (1) that can be placed downstream of an internal combustion engine (2) and includes, along a direction of flow (2) of an exhaust gas (4), a first exhaust gas treatment device (5),...  
WO/2019/081826A1
The invention mainly concerns a method for estimating the soot loading of a particulate filter (16) of a heat engine (10) linked to an exhaust line (12), characterised in that it comprises: a step of measuring or estimating a flow rate o...  
WO/2019/076686A1
The invention relates to a method for determining an NOx concentration and an NH3 slip downstream of an SCR catalyst (3) of an internal combustion engine (1) of a vehicle. For this purpose, status variables of an internal combustion engi...  
WO/2019/076807A1
The invention relates to a method for operating an internal combustion engine (10) of a motor vehicle (56), which comprises an exhaust gas system (16) through which exhaust gas from at least one combustion chamber (14) of the internal co...  
WO/2019/072725A1
The invention relates to a method for operating a diesel engine (1), wherein the NH3 concentration is measured in the exhaust tract (2) downstream of a diesel particle filter (4) combined with an SCR system, and to a corresponding diesel...  
WO/2019/072753A1
The invention relates to an exhaust gas aftertreatment system of a diesel engine. The raw exhaust gas emissions and/or the heating of an SCR catalyst during the warm-up phase of the diesel engine after the engine is started are controlle...  
WO/2019/068313A1
The invention relates to a process, consisting in cooling at least one component (10), such as a sensor, arranged within a compartment (6) of an exhaust after treatment system (5) of a vehicle. The exhaust after treatment system (5) comp...  
WO/2019/068851A1
The invention relates to a method for operating exhaust gas post treatment system of a diesel engine and associated exhaust gas post treatment system. The system has two NOx sensors upstream and downstream of a SCR catalytic converter. T...  
WO/2019/058043A1
The invention mainly relates to a method for controlling a heat engine (10), in particular of a motor vehicle, characterised in that it comprises: 〮 - a step of measuring a quantity of particles accumulated in the particle filter (16) ...  
WO/2019/058040A1
The invention relates to a method for regenerating a particulate filter (16) for a heat engine (10) laden with soot, said heat engine (10) being connected to an exhaust line (12) comprising said particulate filter (16), characterized in ...  
WO/2019/053361A1
The invention concerns a method for preventing a risk of freezing in a reducing-agent feeding device of a system for selective catalytic reduction in an exhaust line (10), a freezing temperature specific to the agent being stored, the sy...  
WO/2019/048754A1
The invention relates to a method for protecting a particulate filter in an exhaust line against the risk of at least partial melting (Fus) of the filter during filter regeneration, an initial increase in the temperature in the filter, r...  
WO/2019/042069A1
An integrated wireless tail gas monitoring apparatus comprises: a tail gas sensor, used for detecting tail gas information to be exhausted by an engine to the atmosphere; and a wireless communication module (20b) integrated in a controll...  
WO/2019/046182A1
An apparatus includes an internal information circuit structured to receive internal information of a vehicle; a static information circuit structured to receive static information external to the vehicle; a dynamic information circuit s...  
WO/2019/030132A1
An antenna for a radio-frequency system (200) for exhaust gas aftertreatment for a motor vehicle comprises: – an antenna element (119) for transmitting and/or receiving microwaves (103), wherein – the antenna element (119) is able to...  
WO/2019/025870A1
A diesel exhaust system includes multiple injectors for providing diesel exhaust fluid to an exhaust to reduce NOx emissions. Two or more injectors provide DEF to the exhaust system of an engine. In one mode, the injectors alternately in...  
WO/2019/025129A1
The invention relates to a method and an SCR catalyst device for ascertaining the state of load of an SCR catalyst (110) located in an exhaust system of an internal combustion engine. The method of the invention involves acquiring the hy...  
WO/2019/019046A1
An injection amount control method and device for an SCR urea injection system in an engine. The method comprises: calculating, on the basis of an amount of an injected aqueous urea solution and an amount of consumed ammonia, a current a...  
WO/2019/020901A1
In a method for adapting an amount of reductant for controlling the nitrogen oxide pollution of gases in an exhaust line, a first alignment (1) of the amount of measured nitrogen oxides is carried out (Mcam SD, MCav SD) by the upstream a...  
WO/2019/020900A1
The present invention relates to a method for analysing the operation of an anti-pollution system for a motor vehicle (1) with an internal combustion engine, said vehicle (1) comprising at least one sensor for measuring (110) a parameter...  
WO/2019/016437A1
The invention concerns a method for launching a dysfunctional regeneration of a particle filter incorporated in an exhaust line of a controlled-ignition combustion engine of a motor vehicle, the method comprising a step of estimating a c...  
WO/2019/011842A1
The invention relates to an exhaust gas aftertreatment system for an internal combustion engine (10), in particular for an internal combustion engine (10) which is charged by means of a turbocharger (30) and spark-ignited by means of spa...  
WO/2019/012196A1
The invention relates to a method for estimating a charge of particulate soot in a combustion engine particulate filter, in which method: – a pressure gradient (d Pd V) is estimated by linear regression over a number of pairs of back-p...  
WO/2019/008057A1
A method of adaptively sampling data to determine the start of injection in a solenoid actuated valve of a fluid injector comprising : a) in an operating cycle or portion thereof of said valve, sampling the signal of current I through a ...  
WO/2019/001721A1
The present invention relates to a method for controlling a vehicle propulsion system. More particularly, the method estimates a future, upcoming driving condition (310) and controls the vehicle propulsion system to operate the prime mov...  
WO/2019/005668A1
A process for detecting reductant deposits includes accessing data indicative of signal output from a radiofrequency sensor positioned proximate a decomposition reactor tube; comparing the data indicative of signal output from the radiof...  
WO/2018/224220A1
The invention relates to a method for determining a status of an exhaust gas treatment element (100) for a motor vehicle, comprising the following steps: transmitting microwaves (112) of different frequencies in a first frequency range (...  
WO/2018/219476A1
The invention relates to a method for controlling the temperature of an NOx controlling component (10) in an exhaust after treatment system (1, 1') of an internal combustion engine (100). The NOx controlling component (10) has inner surf...  
WO/2018/219824A1
The invention relates to a method for determining the resonance frequency of an exhaust-gas aftertreatment system (2). A high-frequency excitation signal is produced with a frequency (f) that varies over a pre-defined frequency range and...  
WO/2018/214861A1
A burner diesel particulate filter (DPF) regeneration control and diagnostic device comprises: a diesel engine (101), connected to a burner (102) and a fuel tank (108); the burner (102) is connected to a particulate controller (107) via ...  
WO/2018/211186A1
The invention relates to a method for determining the transition to the zero liquid water state, called dew point, in an exhaust line of an internal combustion engine, characterised in that: - the calorific energy (Ecal) present in the e...  
WO/2018/200623A1
Systems and methods for removing accumulated soot in an aftertreatment system for an engine are disclosed herein. A method includes receiving an indication that an engine of a vehicle has been operating in a low load condition for more t...  
WO/2018/188379A1
A method for segmented voltage buildup of a tail gas post-processing system, at least comprising the following steps: S0: a step of determining whether an engine is started or not, and if the engine is started, executing step S1; S1: a f...  
WO/2018/189048A1
The invention relates to a method for controlling a metering device (4) for introducing a urea-water solution into an exhaust gas purification system (1) of an internal combustion engine (2), comprising at least the following steps: a) r...  
WO/2018/185655A1
The invention provides an emission control system for treatment of an exhaust gas stream of an engine, including an engine producing an exhaust gas stream; an SCR catalyst unit downstream from the engine and in fluid communication with t...  
WO/2018/184921A1
Method and system for the removal of nitrogen oxides, volatile organic compounds and particulate matter from engine exhaust gasat cold start conditions.  
WO/2018/185660A1
An integrated vehicle on-board system configured to generate hydrogen and to introduce the generated hydrogen into an exhaust gas stream of an internal combustion engine, the system including a water-splitting article configured to split...  
WO/2018/185663A1
An on-board vehicle reservoir containing an ammonia/organic solvent solution may be associated with a phase separator configured to isolate ammonia from the solution. The ammonia may be introduced into an exhaust gas stream of an interna...  
WO/2018/185665A1
The invention provides an emission control system for treatment of an exhaust gas stream that includes an oxidation catalyst composition disposed on a substrate in fluid communication with the exhaust gas stream; at least one selective c...  
WO/2018/185661A1
Systems for abatement of pollutants in an exhaust gas stream of an internal combustion engine including a hydrogen injection article configured to introduce hydrogen upstream of a catalytic article are effective for the abatement of carb...  
WO/2018/182486A1
A method and a system for control of a dosage device and/or an engine are presented. The engine produces an exhaust stream (203) being treated by an exhaust treatment system (250) by use of at least one additive being injected into the e...  
WO/2018/183318A1
In an assembly and methods for NOx reductant dosing with variable spray angle nozzle, according to various embodiments, a reductant dosage is calculated. A reductant delivery region in an exhaust stream area of an aftertreatment system a...  
WO/2018/171217A1
A pump (11) and nozzle (12) integrated device (1). The integrated device (1) comprises a pump module (18), a nozzle module (19), and a connection pipe (180) connecting the pump module (18) and the nozzle module (19). The pump module (18)...  
WO/2018/171213A1
An exhaust gas after-treatment system (100), comprising an exhaust gas after-treatment injection system (200) and an exhaust gas after-treatment packaging system (300). The injection system (200) comprises at least two pump (11) and nozz...  
WO/2018/171212A1
An exhaust gas after-treatment system (100), comprising an exhaust gas after-treatment injection system (200) and an exhaust gas after-treatment packaging system (300). The injection system (200) comprises a conveying system (203) used f...  
WO/2018/171214A1
An exhaust gas after-treatment system (100), comprising an exhaust gas after-treatment injection system and an exhaust gas after-treatment packaging system (300). The injection system comprises a pump (11) and nozzle (12) integrated devi...  

Matches 1 - 50 out of 3,312