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公开(公告)号：US12129778B2
公开(公告)日：2024-10-29
申请号：US18472272
申请日：2023-09-22
CPC分类号： F01N3/0835 , B01D53/9418 , B01D53/9431 , B01D53/944 , B01D53/9477 , B01D53/9486 , B01D53/9495 , F01N3/0842 , F01N3/2013 , F01N3/2066 , F01N3/2803 , F01N3/2842 , F01N13/009 , F02D41/024 , F02D41/401 , B01D2255/1021 , B01D2255/1023 , F01N2370/02 , F02D2041/389
摘要： A system comprising (i) a vehicular compression ignition engine comprising one or more engine cylinders and one or more electronically-controlled fuel injectors therefor; (ii) an exhaust line for the engine comprising: a first emissions control device comprising a first honeycomb substrate, which comprises a hydrocarbon adsorbent component; and a second emissions control device comprising an electrically heatable element and a catalysed second honeycomb substrate, which comprises a rhodium-free platinum group metal comprising platinum, wherein the electrically heatable element is disposed upstream from the catalysed second honeycomb substrate and wherein both the electrically heatable element and the catalysed second honeycomb substrate are disposed downstream from the first honeycomb substrate; a third emissions control device, which is a third honeycomb substrate comprising an ammonia-selective catalytic reduction catalyst disposed downstream from the second emissions control device; and one or more temperature sensors located: upstream of the electrically heatable element and/or upstream of the first honeycomb substrate; and between the electrically heatable element and the catalysed second honeycomb substrate; and (iii) an engine control unit comprising a central processing unit pre-programmed, when in use, to control both a heating activation state of the electrically heatable element; an injection timing strategy of the one or more electronically-controlled fuel injector to increase the temperature of at least the first emissions control device following key-on/cold-starting a vehicle comprising the system, wherein the one or more temperature sensors are electrically connected to the engine control unit for feedback control in the system.
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公开(公告)号：US11959431B2
公开(公告)日：2024-04-16
申请号：US18104168
申请日：2023-01-31
发明人： Douglas Keith , Josef Thalhauser , Nikolaus Spyra
IPC分类号： F02D41/14 , F01N3/28 , F02B37/16 , F02B37/18 , F02B37/22 , F02D13/02 , F02D41/00 , F02D41/40 , F02P5/15 , F02D41/38
CPC分类号： F02D41/1448 , F01N3/2892 , F02B37/16 , F02B37/162 , F02B37/18 , F02B37/183 , F02B37/22 , F02D13/0234 , F02D41/0007 , F02D41/146 , F02D41/401 , F02P5/1502 , F02D2041/389
摘要： An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3′) affecting at least one combustion chamber (3).
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公开(公告)号：US11927148B2
公开(公告)日：2024-03-12
申请号：US16906838
申请日：2020-06-19
CPC分类号： F02D41/402 , F02B23/08 , F02D41/3094 , F02D41/3836 , F02F1/004 , F02F3/00 , F02M61/14 , F02B2023/085 , F02D2041/3881 , F02D2041/389 , F02D2200/024 , F02D2200/1002 , F02D2200/101 , F02F1/242 , Y02T10/12
摘要： A method for operating a fuel injection system is provided. The method includes injecting fuel from a first direct fuel injection device arranged in a cylinder liner in a cylinder block into a combustion chamber and injecting fuel from a second direct fuel injection device arranged in a cylinder head into the combustion chamber, the first and second direct fuel injection devices arranged at an obtuse angle with regard to an intersection of central axes of the first and second direct fuel injection devices.
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公开(公告)号：US20230323831A1
公开(公告)日：2023-10-12
申请号：US18193702
申请日：2023-03-31
发明人： Yuto IKEDA , Ryota SUGIYAMA , Takanobu GOTOH
CPC分类号： F02D41/402 , F02D41/0087 , F02D2041/389
摘要： A controller is configured to control an internal combustion engine. The internal combustion engine may execute multi-shot injection and single-shot injection and execute a deactivating process that stops supplying fuel to at least one of cylinders and supplies fuel to the remaining cylinders. The controller is configured to execute, when terminating the deactivating process to restart supplying fuel to a deactivated cylinder in which supply of fuel is stopped, a retarding process that executes a first fuel injection through the single-shot injection and retards a fuel injection start timing as compared to when executing the multi-shot injection.
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公开(公告)号：US11732661B2
公开(公告)日：2023-08-22
申请号：US17676673
申请日：2022-02-21
CPC分类号： F02D41/0027 , F02D11/105 , F02D19/0602 , F02D19/0642 , F02D41/0025 , F02D41/266 , F02D41/38 , F02D2041/281 , F02D2041/389 , F02D2200/0406 , F02D2200/0408 , F02D2200/0414 , F02D2200/501 , F02D2200/602 , F02D2400/11
摘要： The present invention provides a novel combination of devices to measure and transmit to an electronic controller data pertaining to differential pressures, temperatures, regeneration status, exhaust content, accumulated gas consumption and substitute fuel consumption. The electronic controller compares the data to thresholds; when the controller receives signals indicating these thresholds or limits are met, the controller causes the gas substitution rate to be diminished or set to zero until after-treatments elements are fully regenerated thereby facilitating integration of a mixed fuel system with an application internal combustion engine.
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公开(公告)号：US20230258141A1
公开(公告)日：2023-08-17
申请号：US18167887
申请日：2023-02-13
发明人： Atsushi FUKUDA , Eiichiroh KIDO , Masanao IDOGAWA
CPC分类号： F02D41/065 , F02D41/401 , F02D41/345 , F02D41/042 , F02D2041/389
摘要： A vehicle controller includes processing circuitry. The processing circuitry is configured to perform an intermittent stop of an engine in accordance with a traveling state of a vehicle, cause the engine to restart by self-sustaining resumption when restart of the engine is requested in a state in which the engine is rotating during the intermittent stop, and perform a retarded injection control that retards, in a combustion cycle of the engine, a starting time of a first fuel injection at the time of the restart of the engine by the self-sustaining resumption as compared to a starting time of a second fuel injection.
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公开(公告)号：US20230193846A1
公开(公告)日：2023-06-22
申请号：US18109587
申请日：2023-02-14
发明人： Jörg Remele , Aron Toth , Tobias Frank
IPC分类号： F02D41/40
CPC分类号： F02D41/401 , F02D2200/0602 , F02D2041/389
摘要： A method for operating an internal combustion engine, the method including the steps of:
(a) actuating an injector to introduce a pre-injection amount of a fuel into a combustion chamber of the internal combustion engine;
(b) determining, for an operating cycle of the combustion chamber in which the injector was actuated in the step (a), a pressure gradient characteristic value which is characteristic of a combustion chamber pressure gradient in the combustion chamber;
(c) repeating the steps (a) and (b) a plurality of times;
(d) determining a skew of a distribution of a plurality of pressure gradient characteristic values determined in the step (c); and
(e) changing or maintaining an actuation of the injector depending on the skew determined in the step (d).-
8.发明授权公开(公告)号：US11668259B1
公开(公告)日：2023-06-06
申请号：US18058069
申请日：2022-11-22
CPC分类号： F02D41/1401 , F02D13/02 , F02D41/32 , F02D41/38 , F02B75/048 , F02D13/0269 , F02D41/2422 , F02D2041/001 , F02D2041/1412 , F02D2041/1433 , F02D2041/389 , F02D2200/0625 , F02D2200/101 , F02D2200/1002
摘要： Methods and systems for optimizing fuel economy and maintaining particulate emissions below a threshold of an engine system in a vehicle. An engine system has port fuel injection, direct injection, variable compression ratio, and independent compression/expansion. A processor predicts settings for the four systems that optimize for a fuel economy that is maximized. A particulate rate of the engine system is computed based on the settings. A determination is made of whether the particulate rate is below a threshold. When the particulate rate is below the threshold, command signals are delivered to actuators of the systems to move to the settings. When the threshold is exceeded, the settings are revised to maintain the particulate below the threshold while optimizing for fuel economy.
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公开(公告)号：US20190218989A1
公开(公告)日：2019-07-18
申请号：US16363623
申请日：2019-03-25
发明人： Aed M. Dudar
CPC分类号： F02D41/221 , F02D13/06 , F02D41/0087 , F02D41/1443 , F02D41/1454 , F02D41/1497 , F02D41/26 , F02D2041/389 , F02D2200/1002 , F02D2200/101 , F02P5/045 , F02P5/1504 , Y02T10/18 , Y02T10/40
摘要： Methods and systems are provided for diagnosing a degraded fuel injector delivering undesired additional fuel in a variable displacement engine. In one example, a method includes, responsive to an indication of a cylinder air-fuel imbalance, deactivating a subset of cylinders of a multi-cylinder engine, performing a power balance test to determine an output of each cylinder after a duration of deactivation, and indicating that a deactivated cylinder has a degraded fuel injector responsive to the output being lower than a threshold output.
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10.发明申请公开(公告)号：US20190195154A1
公开(公告)日：2019-06-27
申请号：US16146604
申请日：2018-09-28
发明人： Kyung-Ho Ahn
CPC分类号： F02D41/0085 , F02D41/2467 , F02D41/26 , F02D41/3818 , F02D2041/389 , F02D2200/0602
摘要： A method for correcting a deviation of static flow rates of GDI injectors is provided. The method includes calculating a target pressure drop amount for each cylinder and a relative pressure drop amount for each cylinder from a detected pressure drop amount. An injection correction factor for each cylinder is primarily adjusted by comparing the relative pressure drop amount for each cylinder, with an average of relative pressure drop amounts of all cylinders. The injection correction factor is then secondarily adjusted by comparing an average of injection correction factors of all cylinders with 1.
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