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WO/2020/154108A1 |
An exhaust aftertreatment system includes a catalyst, an exhaust conduit system, a first sensor, a second sensor, a reductant pump, a dosing module, and a reductant delivery system controller. The exhaust conduit system is coupled to the...
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WO/2020/153302A1 |
Provided is an exhaust gas purification device having a control device (100) that monitors the transition of a detection value of each of an upstream NOx sensor (61) and a downstream NOx sensor (62), and when the NOx purification rate of...
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WO/2020/152403A1 |
The invention relates to a method for testing the effectiveness of a catalytic converter (3) in an exhaust line (1) of a combustion engine (2), comprising: - a step of running the combustion engine (2) until its temperature (T_mth) reach...
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WO/2020/143968A1 |
The invention relates to a method for onboard diagnosis in a vehicle with a catalyst and a lambda-controlled internal combustion engine during continuous driving operation, wherein at least one pre-cat lambda sensor is connected upstream...
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WO/2020/142092A1 |
In a method for operating a urea dosing system in an exhaust aftertreatment system (EATS) of an engine, an ambient temperature is measured in an environment in which the EATS is disposed, one or more temperatures associated with the EATS...
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WO/2020/109250A1 |
The invention relates to an exhaust gas cleaning assembly (1) for a motor vehicle, comprising a nitrogen oxide storage (3). The exhaust gas cleaning assembly (1) is configured to obtain information regarding an exhaust gas composition of...
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WO/2020/109322A1 |
The invention relates to an exhaust train (14) for an internal combustion engine, comprising a conduit (20) for circulating an exhaust gas stream, and at least one measuring member (30) for measuring at least one pollutant gas concentrat...
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WO/2020/102467A1 |
The present invention relates to a computer-implemented method for monitoring at least one exhaust gas purification system for purifying an exhaust gas stream to be purified of an industrial system or an industrial process. The method co...
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WO/2020/094333A1 |
The invention relates to a particle sensor (16) for detecting particles (12) or aerosol in a flowing fluid using the principle of laser-induced incandescence, comprising a laser (18) and a first detector (26) designed to detect thermal r...
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WO/2020/097008A1 |
An exhaust gas aftertreatment system includes a decomposition reactor, an injector, and a processor. The decomposition reactor includes a body, an impingement structure, and a heater. Exhaust gas is flowable through the body. The body in...
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WO/2020/094335A1 |
The invention relates to a particle sensor comprising a particle charging device for charging particles in a fluid flow flowing in the region of the particle sensor, the particle charging device having at least one corona electrode for p...
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WO/2020/083212A1 |
An exhaust treatment system, comprising an ozone amount control device (209), and the ozone amount control device (209) comprising a control unit (2091). The ozone amount control device (209) further comprises an ozone pretreatment exhau...
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WO/2020/083231A1 |
An exhaust ozone purification system, comprising an ozone amount control device (209). The ozone amount control device (209) comprises a control unit (2091). The ozone amount control device (209) further comprises an ozone pre-treatment ...
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WO/2020/083233A1 |
An exhaust gas ozone treatment system, comprising an ozone amount control device (209). The ozone amount control device (209) comprises a control unit (2091), and further comprises an ozone pre-treatment exhaust gas component detection u...
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WO/2020/079095A1 |
A method for measuring a catalytic function of an object suitable for cleaning an exhaust gas of an internal combustion engine, wherein a test gas which contains nitrogen oxides and/or hydrocarbons, is moved through the object and a conc...
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WO/2020/075438A1 |
A controller (30) for an ammonia sensor in an exhaust purification system. The controller (30): calculates, in a continuation period in which ammonia supply to a downstream-side catalyst (22) is continued after a pause of supply of aqueo...
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WO/2020/074268A1 |
The invention relates to a control system (10) for regenerating a particle filter (20) in an exhaust gas flow for an internal combustion engine (31), in particular for an internal combustion engine (31) of a hybrid vehicle (30). The cont...
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WO/2020/074446A1 |
The present invention relates to a method for identifying installation positions of nitrogen oxide sensors of an exhaust gas aftertreatment system for a diesel engine, the method comprising the following steps: controlling at least one m...
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WO/2020/062540A1 |
A DPF protection method, comprising: obtaining a switch control signal of an engine controller; determining, according to the switch control signal, whether the engine controller needs to be powered off; if yes, obtaining temperature inf...
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WO/2020/065146A1 |
The present invention relates to a method for controlling a heat engine based on the determination of a pressure drop (ΔΡ) generated by a particle filter coupled to the heat engine. The method comprising: - estimation of the pressure d...
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WO/2020/063672A1 |
A urea pump model recognition method, a urea pump diagnostic instrument (20), and a diagnostic system thereof. The urea pump model recognition method comprises: after connecting a urea pump (30) by means of a connecting cable harness (32...
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WO/2020/060688A1 |
An aftertreatment system configured to reduce constituents of an exhaust gas produced by an engine comprises an aftertreatment component and an optical assembly. The optical assembly comprises an optical emitter configured to emit light ...
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WO/2020/057853A1 |
The invention relates to a method for checking the operability of a particle filter (26) in an exhaust line of a combustion device (10), on the basis of measurement signals of a particle sensor (28). The method is characterized in that o...
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WO/2020/052866A1 |
The invention relates to a method for diagnosing the function of an exhaust gas aftertreatment system of an internal combustion engine (1) and to a corresponding exhaust gas aftertreatment system. The method includes the steps of testing...
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WO/2020/052867A1 |
The invention relates to a method for diagnosing the function of an exhaust gas aftertreatment system of an internal combustion engine (1) and to a corresponding exhaust gas aftertreatment system. The method includes the step of testing ...
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WO/2020/048657A1 |
Method for controlling the operational state of a processing unit (14) for gaseous effluents from an exhaust line (13) in an internal combustion engine (1) with spark ignition for a motor vehicle comprising a first oxygen sensor (15), of...
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WO/2020/043434A1 |
The invention relates to a method and a device for determining the efficiency of an SCR catalyst (10) of an exhaust after-treatment device of an internal combustion engine (1). To this end, the SCR catalyst (10) is provided in the exhaus...
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WO/2020/044315A1 |
Systems, methods, and computer readable storage media for controlling oxidation of a particulate filter (PF) are disclosed. The oxidation of the PF may be controlled using a PF model. The PF model may be utilized to simulate operations o...
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WO/2020/047301A1 |
Systems and apparatuses include a circuit structured to receive information indicative of a catalyst health, determine a catalyst health management criteria has been met based on the information, determine a catalyst loading based on the...
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WO/2020/043965A1 |
The invention relates to a method for correcting an estimation of soot loading (M) of a particulate filter, the estimation of the soot loading (M) being performed by a counterpressure model based on a current counterpressure exerted by t...
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WO/2020/043961A1 |
The invention relates to a method for estimating the soot load of a particulate filter in an exhaust gas duct of an internal combustion engine, comprising the following steps: modeling the particulate filter into a plurality of zones, de...
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WO/2020/032155A1 |
This exchange determination device (100) which determines an exchange timing of an ejection unit (35) is provided with: a pressurization detection unit (124) which detects a pressurization time while a supplying device (34) pressurizes a...
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WO/2020/030216A1 |
One aspect of the invention concerns a diagnostic system for detecting a modification of a particle filter in an exhaust branch of a motor vehicle, wherein the diagnostic system is designed to accept a temperature value characteristic of...
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WO/2020/025866A1 |
The invention relates mainly to a method for correcting a response time of a measurement probe (11). The method comprises: a step of measuring a real signal using the probe (11) in order to obtain a filtered signal containing a response ...
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WO/2020/025442A1 |
The invention relates to a method for checking a metering device (10) for a motor vehicle, by means of which metering device a reducing agent can be introduced into the exhaust gas of an internal combustion engine of the motor vehicle, c...
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WO/2020/009965A1 |
Improved systems and methods for dosing agent injection adaptation for a selective catalytic reduction (SCR) system of an engine of a vehicle involve an adaptation procedure that is generally divided into distinct phases based upon the r...
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WO/2020/002547A1 |
Method for monitoring a concentration of a corrosive gas comprising at least observing at least one gas fuse (2), the gas fuse (2) comprising at least one metal wire (4), which is configured for breaking due to corrosion if exposed to th...
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WO/2020/002182A1 |
The invention relates to a method for checking a particulate filter (18) of an internal combustion engine (10) which has an exhaust gas system (16), the particulate filter (18) which is arranged in the exhaust gas system (16), and at lea...
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WO/2019/240651A1 |
The present invention relates to a method for determining a reference value of a presence of at least one substance (NOx) occurring in an exhaust gas stream of an internal combustion engine (101), wherein the at least one substance is su...
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WO/2019/239025A1 |
The invention relates to a method for detecting a catalyst in an exhaust line, characterised in that it comprises the following operations: - shutting down the engine and thermally stabilising the exhaust line to achieve a balance betwee...
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WO/2019/235212A1 |
In the present invention, an exhaust gas sensor (100) comprises: a first cell (150) that discharges oxygen from exhaust gas produced by an internal combustion engine (EG); and second cells (160, 170) that output a signal with a magnitude...
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WO/2019/226174A1 |
A reductant dosing system includes: an injector; a fixed displacement pump in fluid communication with the injector; a reductant source in fluid communication with the fixed displacement pump; a pressure sensor assembly configured to det...
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WO/2019/219358A1 |
The invention relates to a method for determining a state of an exhaust gas treatment element (100) for a motor vehicle, comprising: - determining an operational state of an internal combustion engine (130) of the motor vehicle, - transm...
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WO/2019/215398A1 |
The invention relates to a process for dynamic monitoring of the flow rate of liquid additive consumed by a liquid additive injector of a motor vehicle exhaust gas treatment system. The measurement (302) of the pressure of the liquid, fi...
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WO/2019/216900A1 |
A method is provided for determining exhaust mass flow through a diesel particulate filter (DPF) in an engine arrangement including an engine and an exhaust after treatment system (EATS) comprising the DPF. The method comprises determini...
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WO/2019/214771A1 |
One aspect of the invention relates to a measuring device for the determination of an ash loading of a particulate filter for an internal combustion engine of a motor vehicle, wherein a regeneration operation of the particulate filter is...
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WO/2019/216901A1 |
A method and system are provided for assessing engine faults. The method includes measuring actual diesel particulate filter (DPF) soot loading, determining expected DPF soot loading, aid determining that a possible engin component fault...
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WO/2019/209162A1 |
A method and a system for determination of a formation of solid deposits of a reducing agent on an inner wall of an evaporation unit are presented. The method includes - determining a representation of a model temperature Tmodel- i for a...
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WO/2019/209163A1 |
A method and a system for control of an activation of at least one fluid sensitive sensor of an exhaust treatment system arranged for treating an exhaust stream from an engine are presented. The method includes: - determining at least on...
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WO/2019/209161A1 |
A method, a system, a computer program and a computer-readable medium for control of dosage of a reducing agent into an exhaust stream from an engine are disclosed. The method method includes: - determining at least one sensor signal SNO...
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