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公开(公告)号：US12098686B2
公开(公告)日：2024-09-24
申请号：US18140536
申请日：2023-04-27
Applicant: Gas Activated Systems
Inventor： Michael A. Bryan
CPC classification number: F02D41/0002 , F02D41/0027 , F02D41/042 , F02D41/1441 , F02D41/22 , G08B21/16 , G08B25/009 , H04W12/009 , H04W88/16 , F02D2041/225 , F02D2200/04 , F02D2200/0602 , F02D2200/0611
Abstract: Methods, systems and devices for evaluating incoming air to an engine, industrial controller including engine controls, valves and solenoids, for concentrations of explosive or combustible gases or vapors, and actuating process control including but not limited to shutting down an engine or other industrial process to control an outcome including the prevention of an overspeed condition when pre-set or calculated elevated gas or vapor concentrations are detected. In some embodiments industrial control including engine shutdown may be achieved conventionally via an electronic kill signal, a shutdown of the fuel injector, carburetor or fuel pump, and in emergency conditions by the shutoff of incoming air to an air intake, turbocharger, or other air delivery systems. Decisions based on explosive gas or vapor concentrations and species and the use of networking to allow additional systems to take action before explosive gases or vapors reach said other valve-sensor devices can provide additional safety.
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公开(公告)号：US12092049B1
公开(公告)日：2024-09-17
申请号：US18459509
申请日：2023-09-01
Applicant: FCA US LLC
Inventor： Boopathi Singalandapuram Mahadevan , Joshua Macchiavello , Kevin C Ohlrogge , Simon Omekanda , Jason E Wielenga
CPC classification number: F02D41/126 , F02D41/0295 , F02D41/1441 , F02D2200/0814 , F02D2200/1002 , F02D2200/101 , F02D2250/36
Abstract: A control system for an engine of a vehicle includes one or more oxygen (O2) sensors disposed proximate to a three-way catalytic converter (TWC) in an exhaust system of the vehicle, the one or more O2 sensors each being configured to measure an O2 level of exhaust gas produced by the engine, and a controller in signal communication with the one or more O2 sensors. The controller is programmed to detect a fuel shut-off (FSO) event where the engine ceases providing fuel to the engine, determine an accumulated gas flow through the TWC during the FSO event, determine the FSO event has ended, and initiate a fuel enrichment event for a predetermined duration where the engine is supplied with a fuel enrichment level having a rich fuel/air ratio. The fuel enrichment level and the predetermined duration are chosen to reduce non-methane hydrocarbon (NMHC) emissions while maintaining NOx emission control.
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公开(公告)号：US11879367B2
公开(公告)日：2024-01-23
申请号：US17002570
申请日：2020-08-25
Applicant: PACCAR Inc
Inventor： Cynthia Chaffin Webb , Charles Wayne Reinhardt Swart , Maarten Meijer , Varun Ramesh
CPC classification number: F01N3/208 , F01N11/00 , F02D41/1441 , F02D41/1463 , F02D41/222 , F01N2390/02 , F01N2550/05 , F01N2560/026 , F01N2560/14 , F01N2590/08 , F01N2610/02 , F01N2610/1453 , F01N2900/1402
Abstract: A heavy-duty truck has a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system includes a close-coupled selective catalytic reduction system and an underbody selective catalytic reduction system, a first NOx sensor upstream of the close-coupled selective catalytic reduction system, a second NOx sensor between the two selective catalytic reduction systems, and a third NOx sensor downstream of the underbody selective catalytic reduction system. The engine control unit may perform methods allowing intrusive diagnostics to be performed on exhaust gas NOx sensors using the selective catalytic reduction systems during normal operation of the heavy-duty truck.
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公开(公告)号：US20230279819A1
公开(公告)日：2023-09-07
申请号：US18140536
申请日：2023-04-27
Applicant: Gas Activated Systems
Inventor： Michael A. Bryan
CPC classification number: F02D41/0002 , H04W12/009 , F02D41/0027 , F02D41/042 , F02D41/1441 , F02D41/22 , G08B21/16 , G08B25/009 , H04W88/16 , F02D2200/04 , F02D2041/225 , F02D2200/0602 , F02D2200/0611
Abstract: Methods, systems and devices for evaluating incoming air to an engine, industrial controller including engine controls, valves and solenoids, for concentrations of explosive or combustible gases or vapors, and actuating process control including but not limited to shutting down an engine or other industrial process to control an outcome including the prevention of an overspeed condition when pre-set or calculated elevated gas or vapor concentrations are detected. In some embodiments industrial control including engine shutdown may be achieved conventionally via an electronic kill signal, a shutdown of the fuel injector, carburetor or fuel pump, and in emergency conditions by the shutoff of incoming air to an air intake, turbocharger, or other air delivery systems. Decisions based on explosive gas or vapor concentrations and species and the use of networking to allow additional systems to take action before explosive gases or vapors reach said other valve-sensor devices can provide additional safety.
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公开(公告)号：US11725603B1
公开(公告)日：2023-08-15
申请号：US17653729
申请日：2022-03-07
Applicant: Ford Global Technologies, LLC
Inventor： Michael Uhrich , Mario Santillo , Joseph Lyle Thomas , Stephen William Magner
CPC classification number: F02D41/1454 , F01N13/008 , F02D41/1441 , F02D41/38 , F01N9/005 , F01N11/007 , F01N2560/02 , F01N2560/027 , F01N2560/14 , F01N2900/04 , F01N2900/0402 , F01N2900/0408 , F01N2900/0411 , F01N2900/0412 , F01N2900/0416 , F01N2900/06 , F01N2900/1402
Abstract: Methods and systems are provided for an exhaust system. In one example, a method may include determining presence of a zone flow based on a comparison of a first exhaust sensor and a second exhaust sensor. The presence or absence of the zone flow may determine a rate at which an air-fuel ratio is adjusted.
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Patent Agency Ranking
公开(公告)号：US20190218951A1
公开(公告)日：2019-07-18
申请号：US16367867
申请日：2019-03-28
Applicant: Bayerische Motoren Werke Aktiengesellschaft
Inventor： Robert ALIG
CPC classification number: F01N3/2073 , F01N13/008 , F01N13/0097 , F01N2560/025 , F01N2560/14 , F02D41/1439 , F02D41/1441 , F02D41/1456 , G01N1/2252
Abstract: An assembly for determining lambda values of an exhaust gas of an internal combustion engine is provided. The internal combustion engine is attached to an exhaust gas treatment device with at least one first catalyst and a second catalyst. Additionally, the assembly has the following: a first lambda sensor in a first removal line, wherein the first removal line is designed to remove a part of the exhaust gas upon entering the first catalyst and conduct same back into the exhaust gas treatment device after the exhaust gas passes the first lambda sensor, and the first lambda sensor and at least one part of the first removal line are arranged outside of the exhaust gas treatment device; and a second lambda sensor in a second removal line, wherein the second removal line is designed to remove a part of the exhaust gas between the first catalyst and the second catalyst and conduct same back into the exhaust gas treatment device after the exhaust gas passes the second lambda sensor, and the second lambda sensor and at least one part of the second removal line are arranged outside of the exhaust gas treatment device.
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公开(公告)号：US20190136778A1
公开(公告)日：2019-05-09
申请号：US16170410
申请日：2018-10-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kenji INOSHITA , Shogo TANAKA , Norihisa NAKAGAWA
CPC classification number: F02D41/0295 , F01N3/101 , F01N11/007 , F01N2550/02 , F01N2560/025 , F02D41/1441 , F02D41/1456 , F02D2200/0814
Abstract: An exhaust purification system of an internal combustion engine comprises an air-fuel ratio control device controlling an air-fuel ratio of the inflowing exhaust gas to a target air-fuel ratio. If a first judged condition wherein an estimated amount of change of an oxygen storage amount of the catalyst when the target air-fuel ratio is maintained at the first set air-fuel ratio is equal to or greater than a first reference amount, and a second judged condition wherein a difference of an air-fuel ratio detected by the upstream side air-fuel ratio sensor and a stoichiometric air-fuel ratio is equal to or greater than a difference of a second judged air-fuel ratio and a stoichiometric air-fuel ratio are satisfied, the air-fuel ratio control device switches the target air-fuel ratio from the first set air-fuel ratio to the second set air-fuel ratio when the first judged condition and second judged condition are satisfied.
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公开(公告)号：US20190010884A1
公开(公告)日：2019-01-10
申请号：US15645424
申请日：2017-07-10
Applicant: GM Global Technology Operations LLC
Inventor： David P. Quigley , Sarah Funk
CPC classification number: F02D41/0235 , F01N3/035 , F01N3/103 , F01N3/208 , F01N11/00 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2570/14 , F01N2570/18 , F01N2610/02 , F01N2900/0422 , F01N2900/08 , F01N2900/1616 , F01N2900/1812 , F01N2900/1821 , F02D41/1441 , F02D41/1463 , F02D41/1465 , F02D41/26 , F02D2041/1469 , F02D2250/36
Abstract: Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a selective catalytic reduction (SCR) device, an NOx sensor, and a controller for ammonia slip detection. The ammonia slip detection includes comparing an NOx measurement from the NOx sensor with a predicted NOx value. In response to the NOx measurement exceeding the predicted NOx value by a threshold value, the threshold value being calibrated to a first predetermined value, the threshold value is calibrated to a second predetermined value, a timer is initiated to a predetermined duration, and during the predetermined duration of the timer, in response to a second NOx measurement from the NOx sensor exceeding the predicted NOx value by the threshold value set to the second predetermined value, a reductant dosing rate of the SCR device is adapted according to the second predetermined value.
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公开(公告)号：US20180320571A1
公开(公告)日：2018-11-08
申请号：US15965260
申请日：2018-04-27
Applicant: Robert Bosch GmbH
Inventor： Michael Fey
CPC classification number: F01N3/20 , F01N3/101 , F01N9/005 , F01N11/007 , F01N2430/06 , F01N2900/0416 , F01N2900/1624 , F01N2900/1814 , F02B77/086 , F02D41/0295 , F02D41/1401 , F02D41/1441 , F02D41/1454 , F02D2041/1433 , F02D2200/0814 , F02D2200/0816
Abstract: A method for controlling a fill level of a catalytic converter that is in an exhaust aftertreatment system of an exhaust tract downstream from an internal combustion engine includes an exhaust gas sensor that is upstream of the catalytic converter measuring, and producing a signal representing, a concentration of an exhaust component; correcting a dynamic distortion present in the produced signal to produce a corrected signal; determining the fill level of the catalytic converter by inputting the corrected signal into a modeling function; and performing a control that modifies the fill level based on the determined fill level.
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公开(公告)号：US20180274468A1
公开(公告)日：2018-09-27
申请号：US15468666
申请日：2017-03-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Guangzhi A. Zhao , Vincent J. Tylutki , Leo P. Craglow
CPC classification number: F02D41/1454 , F01N3/10 , F01N3/28 , F01N13/008 , F01N13/02 , F01N13/10 , F01N2450/16 , F01N2560/025 , F02D41/0235 , F02D41/1439 , F02D41/1441
Abstract: An exhaust system for a vehicle includes a catalytic converter, an exhaust manifold, an outlet sensor in addition to inlet and outlet pipes. The catalytic converter includes an integrated oxygen sensor mount, an entry, and an outlet. The integrated oxygen sensor mount operatively configured to receive an outlet sensor. The exhaust manifold may be operatively configured to couple a vehicle combustion chamber to the entry of the catalytic converter via a front pipe. The inlet sensor may be affixed to the front pipe upstream of the catalytic converter wherein the inlet sensor and the outlet sensor are in communication with an engine control module. The outlet pipe may be affixed to the outlet of the catalytic converter.
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