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Matches 1 - 50 out of 2,264

Document Document Title
WO/2019/091755A1
The invention relates to a system for exhaust-gas treatment for a motor vehicle having: a first exhaust-gas treatment element (101), a second exhaust-gas treatment element (102), a common housing (103), in which the first exhaust-gas tre...  
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/2019/082823A1
In the present invention, an ECU (40) stores and retains, in a storage unit (44), NOx information relating to: NOx in exhaust flowing through an exhaust system of a vehicle-mounted engine (10, 200) in a vehicle; or to NOx purification by...  
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/2019/076685A1
The invention relates to a method for determining emissions (50) from a motor vehicle (10) driven by means of an internal combustion engine (20) during actual driving (real driving emissions), in which method a machine learning system is...  
WO/2019/076808A1
The invention relates to a method for operating a mixed potential sensor for detecting a content of oxidisable gases, wherein the mixed potential sensor is operated at a predefined measuring temperature during a measuring phase. In order...  
WO/2019/073280A1
A diagnostic system (10) is provided and includes a sensor (24) disposed downstream from an exhaust gas aftertreatment system. Also included in the diagnostic system (10) is a central diagnostic unit (35) configured to diagnose a condens...  
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/2019/068851A1
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/2019/063301A1
The present invention relates to a method for operating a catalyst arrangement (100) of an internal combustion engine and a catalyst arrangement (100). The catalyst arrangement (100) includes an exhaust gas sensor (130) having a sensor e...  
WO/2019/059837A1
The invention relates to a method for diagnosing an emission control arrangement for a combustion engine (231) in operation, comprising at least a first SCR configuration (260) and a second SCR configuration (270) arranged in a series Th...  
WO/2019/059823A1
The invention relates to a method for diagnosing functionality of dosing units of a fluid dosing system comprising at least two dosing units (237a; 237b; 237c), a tank unit (205) for holding a fluid and a pump unit (230) for pressurizing...  
WO/2019/059824A1
The invention relates to a method for adapting control of a reducing agent dosing unit (237) in a reducing agent provision system for emission control of a combustion engine (231). Hereby characteristics relating to pressure variations a...  
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/2019/044849A1
A determination method for a DPF comprises: an acquisition step in which heat damage information, which indicates the extent of heat damage to a DPF (20) that is mounted in a first work machine (1) and that includes a DOC (22) and a CSF ...  
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/2019/039481A1
A NOx storage-reduction catalyst (21) is provided in an exhaust passage of an internal-combustion engine (10) and purifies NOx in exhaust. Ozone supply devices (32, 33) supply ozone to an upstream side of the catalyst, in the exhaust pas...  
WO/2019/033134A1
The invention relates to a method and to an arrangement of an internal combustion engine (1) with an exhaust-gas aftertreatment system (2) and a preheating apparatus (3), wherein the preheating apparatus (3) is designed to preheat at lea...  
WO/2019/034606A1
A method for operating an exhaust gas aftertreatment system of an internal combustion engine (1) and an exhaust gas aftertreatment system are described. The internal combustion engine (1) has a turbine wheel (5) of an exhaust gas turboch...  
WO/2019/030128A1
The invention relates to a method for determining a state of an exhaust gas treatment element (100) for a motor vehicle comprising: transmitting microwaves (104) into a housing (102) of the exhaust gas treatment element (100) during a ti...  
WO/2019/025186A1
The exhaust gas (1) to be analyzed is conducted untreated through a first measurement chamber (13) and, after treatment in an oxidation device (23), through a second measurement chamber (16). In the oxidation device (23), ozone is produc...  
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/2019/025236A1
The invention relates to a particle sensor (100; 100a; 100b; 100c; 100d) comprising a main body (110), a particle charging device (120) for charging particles in a fluid flow (A1) flowing over a first surface (110a) of the main body (110...  
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/2019/011497A1
The invention relates to a device for measuring the concentration of a reductant, in particular urea, in a solution, comprising at tank housing (2) for storing the solution in an interior (2b) of the tank housing (2); a sensor device (1)...  
WO/2019/011612A1
The invention relates to a method for determining a state of an exhaust gas treatment element (100) for a motor vehicle, comprising: - emission of microwaves (112) in a housing (102) of an additional exhaust gas treatment element (101) a...  
WO/2019/000058A1
This is a product pertaining to the field of motor vehicles. The present subject matter relates to a warning device for vehicles in general, which advises the user of the correct time to replace a catalytic converter prior to expiry of t...  
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/2018/219824A1
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/2018/193174A1
The invention relates mainly to a method for determining the ageing of a catalytic converter equipping an exhaust line, in particular of a motor vehicle, said exhaust line being equipped with oxygen probes upstream and downstream from th...  
WO/2018/188997A1
The invention relates to an exhaust gas sensor, in particular a particle sensor, comprising a sleeve-shaped sensor housing (12), a sensor element (14), which is fixed in the sensor housing (12) and which protrudes beyond the sensor housi...  
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/2018/185314A1
A method of detecting a valve opening or closing event in a solenoid operated reductant injector valve comprising the steps of: a) applying a voltage to said solenoid to actuate said valve, said voltage having a chopped waveform; b) samp...  
WO/2018/183684A1
A system is provided for automatically shutting down an engine of a portable or handheld device in response to the engine operating while in an enclosed space, such as a garage, shed, room, etc. to prevent dangers associated with carbon ...  
WO/2018/177897A1
The invention relates to a method and a computer program product for identifying an absent or defective particle filter in an exhaust gas treatment system of an internal combustion engine, in particular a petrol engine, wherein in order ...  
WO/2018/166677A1
The invention relates to a method for operating a sensor (10) which has a sensor element (12) with a pump cell (36) and a Nernst cell (40). A Nernst voltage (Uvs) of the Nernst cell (40) is regulated; a measurement signal of the sensor e...  
WO/2018/165074A1
Method and apparatus for monitoring and/or detecting combustion misfire events in periodic combustion processes in internal combustion engines, using combustion signals derived from a first oxygen sensor exposed to exhaust gas of a perio...  
WO/2018/147885A1
An exhaust aftertreatment system includes a first stage catalytic converter, a second stage catalytic converter, and a conduit extending from the first stage catalytic converter to the second stage catalytic converter. The conduit passes...  
WO/2018/138314A1
A waste heat recovery system (12) for an engine exhaust system (14), the waste heat recovery system (12) being controlled by an energy management system (70). The waste heat recovery system (12) comprises an inlet for receiving hot exhau...  
WO/2018/138245A1
The invention relates to a control method that allows the mean quantity of nitrogen oxides per kilometre covered emitted by a vehicle fitted with an internal combustion engine associated with a post-treatment system to be kept below a pr...  
WO/2018/136408A1
A system structured to measure at least one of particulate matter or ammonia in an exhaust aftertreatment system. The system includes a selective catalytic reduction catalyst, a doser disposed upstream of the selective catalytic reductio...  
WO/2018/130459A1
The invention relates to a method and a device, in particular a diagnostic unit for load diagnosis of a particle filter as a component of an exhaust gas cleaning system in the exhaust train of an internal combustion engine. Said method i...  
WO/2018/132059A1
The invention relates to a method for determining a cause for impaired performance of a catalytic configuration for emission control of exhaust gas of a combustion engine (231), said catalytic configuration being arranged for NOx-convers...  
WO/2018/127638A3
The invention relates to a method for cleaning a solid urea deposit from an exhaust system (1) of an internal combustion engine (2), said exhaust system (1) being provided with a particulate filter (52) and a selective catalytic reductio...  

Matches 1 - 50 out of 2,264