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JP7380262B2 |
To secure more diagnostic chances while precisely diagnosing an oxidation catalyst.A diagnostic device of an oxidation catalyst comprises: an HC adsorption amount estimation part 102 for estimating an HC adsorption amount which is an amo...
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JP7380263B2 |
To secure more diagnostic chances while precisely diagnosing an oxidation catalyst.A diagnostic device of an oxidation catalyst comprises: an HC adsorption amount estimation part 102 for estimating an HC adsorption amount which is a tota...
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JP7375782B2 |
A control device can execute a first diagnosis process of, when first execution conditions are met, diagnosing whether an air-fuel ratio sensor has an abnormality while executing a motoring process, and a second diagnosis process of, whe...
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JP7365560B2 |
To reliably suppress erroneous determination regarding the abnormality determination of a selective reduction type NOx catalyst, considering the decomposition of reductant attached to exhaust passage.An exhaust emission control device fo...
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JP7363860B2 |
A control device for an internal combustion engine including an upstream cleaning device and a downstream cleaning device that are provided in an exhaust gas passage and a temperature sensor that detects a temperature of exhaust gas betw...
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JP2023151662A |
To reduce the down-time.A shovel includes: a base carrier; a revolving super structure mounted on the base carrier in a revolving manner; an internal combustion engine mounted on the revolving super structure; and a control unit configur...
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JP2023150624A |
To provide an exhaust control device for an internal combustion engine capable of preventing output limitation due to clogging of a gasoline particulate filter (GPF) and suppressing damage or deterioration caused by a high temperature an...
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JP7360596B2 |
To reliably suppress erroneous determination regarding the abnormality determination of a selective reduction type NOx catalyst, considering the solidification of reductant attached to exhaust passage.An exhaust emission control device f...
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JP2023146531A |
To provide an exhaust emission control device capable of properly eliminating closing/fixing in a case of occurrence of the closing/fixing on a supply valve in an exhaust emission control system having two supply valves.An ECU 30 include...
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JP2023140571A |
To provide an exhaust emission control device which suppresses the discharge of a gas composition not intended originally and resulting from an abnormality detection operation, and furthermore enables a state of a selection/reduction typ...
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JP7355046B2 |
To provide a defect determination device and a defect determination method which enable a user to grasp defect of an exhaust gas purification member before engine failure occurs.A defect determination device determines defect of an exhau...
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JP2023133746A |
To provide a control system for an internal combustion engine capable of executing optimal fuel injection in accordance with an operating state of the internal combustion engine.A control system for an internal combustion engine that can...
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JP7347264B2 |
A management device 100 includes: a data acquisition unit 122 configured to acquire cumulative data for each parameter related to stress acting on a DOC 33 configured to purify exhaust gas of an engine and an exhaust gas temperature of t...
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JP7342745B2 |
A method for reusing a vehicular catalyst that ensures effective reuse of a catalyst discarded when a vehicle is discarded is provided. A catalyst deterioration level of a catalytic converter is diagnosed, a catalyst that has a value of ...
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JP2023537527A |
The present invention relates to stabilization of aqueous urea solutions containing organometallic catalyst precursors. Stabilization can be achieved by monitoring and controlling solution pH.
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JP2023117067A |
To provide a catalytic efficiency deterioration detection device capable of detecting deterioration of catalytic efficiency in an oxidation catalyst of an exhaust emission control device, and an exhaust emission control system.A control ...
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JP2023106799A |
To provide a processing device, a processing method and an exhaust gas treatment system capable of appropriately determining timing of filter cleaning.A processing device includes: an acquisition section acquiring regeneration informatio...
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JP2023106800A |
To provide a processing device, a processing method and an exhaust gas treatment system capable of appropriately determining timing of filter cleaning.A processing device includes: an acquisition section acquiring information indicating ...
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JP7317170B2 |
To provide an engine capable of determining whether or not an oxidation catalyst normally functions without supplying unburned fuel to the oxidation catalyst.An engine comprises an oxidation catalyst, a temperature difference calculation...
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JP2023102013A |
To provide an exhaust emission control device capable of suppressing an impact on durability of a collection filter that might be produced when regeneration control is resumed after interruption of the regeneration control while consider...
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JP7310624B2 |
To secure more diagnostic chances while precisely diagnosing an oxidation catalyst.A diagnostic device of an oxidation catalyst comprises: an HC adsorption amount estimation part 102 for estimating an HC adsorption amount which is an amo...
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JP2023096994A |
To accurately estimate a degree of deterioration of a catalyst for exhaust emission control.An electronic control unit 14 calculates a progress of deterioration of a catalyst caused by execution of catalyst temperature increasing process...
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JP7302541B2 |
To provide an exhaust treatment system which accurately determines deterioration of an exhaust treatment device for cleaning exhaust and deterioration of a fuel addition device for adding fuel to the exhaust treatment device.ECU practice...
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JP7294167B2 |
To secure more diagnostic chances while precisely diagnosing an oxidation catalyst.A diagnostic device of an oxidation catalyst comprises: an HC adsorption amount estimation part 102 for estimating an HC adsorption amount which is an amo...
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JP2023077202A |
To provide a catalyst deterioration diagnosis device which can early diagnose the thermal deterioration of a catalyst.A catalyst deterioration diagnosis unit of an ECU performs a first catalyst deterioration diagnosis operation performin...
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JP7283453B2 |
A vehicle control device comprising: a water-covered state detection unit (103) that detects a water-covered state of a region where a post-treatment device (40) of an exhaust pipe (30) of an engine (10) is disposed; and a regeneration c...
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JP7281884B2 |
A reductant delivery system (42) includes an electronic control unit (52) coupled with each of an electronically controlled reductant injector (46) and an electronically controlled pump (44), and structured to mitigate obstruction of a r...
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JP2023071606A |
To provide a computer-implemented method for determining whether a reductant (for example, urea) injector is clogged.A computer-implemented method 100 comprises: receiving data indicative of an injector duty cycle X1 and a pump duty cycl...
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JP7279127B2 |
A lean burn engine exhaust treatment articles comprising a low temperature lean NOx trap (LT-LNT) composition and methods for their use is disclosed. A lean burn engine exhaust gas treatment system including the lean burn engine exhaust ...
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JP2023067362A |
To provide a catalyst deterioration diagnosis device capable of detecting a deterioration degree of a catalyst of a catalytic converter by using one oxygen concentration sensor without causing a problem.A catalyst deterioration diagnosis...
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JP7273584B2 |
To provide an engine system which can prevent the damage of an electric component by detecting the damage which has occurred during a stop of a plasma reactor before an operation of the plasma reactor.An engine system which comprises: an...
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JP7268334B2 |
To provide a control device of an internal combustion engine which can diagnose the deterioration of exhaust gas sensors in parallel with the deterioration of a catalyst, and can obtain the high-accuracy of the diagnoses.In a control dev...
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JP2023061568A |
To provide a deterioration determination device for a gas sensor capable of securing an opportunity for a deterioration determination of the gas sensor.A deterioration determination device determines deterioration of a gas sensor provide...
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JP2023061157A |
To provide a vehicle maintenance system capable of shortening execution time of regeneration processing.A maintenance system includes a processing circuit for executing calculation processing (Step S140, step S150) for calculating recomm...
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JP7265449B2 |
A system of diagnosing a deterioration of a catalyst, which includes a precious metal component and a ceramic part and purifies an exhaust gas emitted from an engine, includes: a diagnosis means comparing a diagnosis object value corresp...
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JP7264120B2 |
A degradation diagnosis device includes a downstream air-fuel ratio sensor and a control device. The control device is configured to perform a rich process and a lean process alternately and repeatedly in a degradation diagnosis process ...
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JP2023054689A |
To provide a catalyst deterioration diagnosis device which can detect an abnormality of a catalyst while suppressing the deterioration of emission.A catalyst deterioration diagnosis device for diagnosing the deterioration of a catalyst w...
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JP2023049308A |
To provide a control device for an internal combustion engine capable of suppressing a situation where thermal stress is generated in a catalyst carrier due to an impact of water adhering to the catalyst carrier, leading to breakage of t...
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JP2023514413A |
The present invention provides a combustion engine (140) with a fault detection system (300) that is cost-effective and provides robust output with minimal components. The system includes a first processor (206), which is positioned prox...
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JP7249165B2 |
To appropriately provide information for determining whether to need replacement or the like of a catalyst in a denitrification device in a case where pressure loss of an air heater increases.A plant comprises: an ammonia supply device t...
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JP2023042383A |
To provide a control device of an internal combustion engine for a vehicle capable of improving the probability to complete self-diagnosis of the internal combustion engine for the vehicle without interruption and preventing degradation ...
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JP2023034733A |
To curb a reduction in opportunity for a sensor to determine abnormality while curbing occurrence of erroneous determination.An abnormality determination device (30) comprises: determination means (33) which is installed on a downstream ...
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JP2023035628A |
To accurately diagnose deterioration of a catalyst.A diagnostic system includes: a control section for resuming fuel supply to an engine in a rich atmosphere in which an air-fuel ratio is richer than a theoretical air-fuel ratio after fu...
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JP7234916B2 |
A control device comprises an estimated temperature calculation part calculating an estimated temperature of a conductive base based on an engine operating state, an electrical heating permission judgment part judging if to permit warmup...
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JP2023509166A |
A method of operating an internal combustion engine comprises combusting a fuel-air mixture in a combustion chamber of the internal combustion engine to thereby form an exhaust gas, channeling the exhaust gas out of the combustion chambe...
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JP2023026976A |
To suppress occurrence of failure in which fuel economy and an exhaust gas deteriorate according to the resumption of a catalyst deterioration diagnosis after re-start of an internal combustion engine as the internal combustion engine st...
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JP7222287B2 |
To easily specify the cause of a failure of a catalyst device.An electronic control unit 26 is applied to an engine 10 having a catalyst device 19 for exhaust emission control disposed in an exhaust passage 13, determines whether the eng...
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JP7211388B2 |
A reuse evaluation system is a system that performs an evaluation to reuse a catalyst in a state where the catalyst that purifies an exhaust gas of an engine of a vehicle 1 is mounted on the vehicle. The reuse evaluation system includes ...
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JP2023009537A |
To provide an abnormality diagnostic device for an electric heating type catalyst system capable of discriminating disconnection of a power cable and an abnormality of a power supply device.When determining that a power source system abn...
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JP7209501B2 |
To efficiently restrain particulate matter such as soot from adhering onto a sensor in an exhaust pipe.An exhaust device includes an exhaust pipe 20 which is connected to an engine and through which exhaust gas discharged from the engine...
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