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公开(公告)号：US11933242B2
公开(公告)日：2024-03-19
申请号：US18146407
申请日：2022-12-26
发明人： Jae Young Lee
CPC分类号： F02D41/22 , F02D41/0055 , F02D41/0077 , F02D41/027 , G01K13/026 , G01M15/102 , G06T7/90 , G07C5/0808 , G07C5/0825 , F02D2041/228 , F02D2200/021 , G01K2205/00 , G06T2207/20084 , G06T2207/30232 , G06T2207/30252
摘要： Provided are an exhaust gas monitoring system and method for allowing a driver to monitor a state of an exhaust gas discharged from a vehicle during driving without getting out of the vehicle, thus improving convenience, and improving driving safety by diagnosing a state of an engine.
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公开(公告)号：US20230407808A1
公开(公告)日：2023-12-21
申请号：US18146407
申请日：2022-12-26
发明人： Jae Young LEE
CPC分类号： G07C5/0808 , G01K3/005 , G01M15/102 , G01K13/026 , G06T7/90 , F02D41/0077 , F02D41/0055 , F02D41/027 , F02D41/22 , G07C5/0825 , G01K2205/00 , G06T2207/30252 , G06T2207/30232 , G06T2207/20084 , F02D2041/228
摘要： Provided are an exhaust gas monitoring system and method for allowing a driver to monitor a state of an exhaust gas discharged from a vehicle during driving without getting out of the vehicle, thus improving convenience, and improving driving safety by diagnosing a state of an engine.
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公开(公告)号：US10052587B2
公开(公告)日：2018-08-21
申请号：US15559309
申请日：2016-03-17
申请人： ISUZU MOTORS LIMITED
发明人： Teruo Nakada , Takayuki Sakamoto , Daiji Nagaoka
CPC分类号： B01D53/9422 , B01D53/94 , B01D53/944 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N3/206 , F01N3/36 , F01N2430/06 , F01N2430/085 , F01N2550/03 , F01N2610/03 , F01N2610/146 , F01N2900/0422 , F01N2900/08 , F01N2900/1602 , F01N2900/1614 , F01N2900/1821 , F02D41/0007 , F02D41/0235 , F02D41/027 , F02D41/0275 , F02D41/04 , F02D41/123 , F02D41/1446 , F02D41/1454 , F02D41/1463 , F02D41/182 , F02D41/2448 , F02D41/2454 , F02D41/3005 , F02D41/405 , F02D2200/0616 , F02D2200/0802 , F02D2200/0806 , F02D2200/101 , F02D2200/602 , Y02T10/44
摘要： An exhaust purification system is provided with a NOx-occlusion-reduction-type catalyst and a NOx purge rich control unit that executes NOx purge in a case where a catalyst temperature of the NOx-occlusion-reduction-type catalyst is equal to or higher than a catalyst temperature threshold value and a NOx occlusion amount of the NOx-occlusion-reduction-type catalyst is equal to or higher than an NOx occlusion amount threshold value and executes the NOx purge even when the catalyst temperature is lower than a catalyst temperature threshold value in a case where the NOx occlusion amount is equal to or greater than the occlusion amount threshold value, a fuel injection amount resulting from an accelerator operation is equal to or greater than an injection amount threshold value, and an exhaust temperature detected by a first exhaust temperature sensor is equal to or higher than an exhaust temperature threshold value.
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4.发明申请公开(公告)号：US20180156096A1
公开(公告)日：2018-06-07
申请号：US15874412
申请日：2018-01-18
申请人： Cummins IP, Inc.
CPC分类号： F01N9/00 , F01N3/2066 , F01N11/002 , F01N2550/05 , F01N2560/06 , F01N2610/02 , F01N2610/03 , F01N2610/148 , F01N2900/1404 , F02D41/027 , Y02T10/47
摘要： An exhaust gas treatment system for an internal combustion engine may have a reductant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor may be positioned in or near the flow of reductant and exhaust to measure the temperature of the reductant and exhaust. A change in temperature over time, such as an increase, decrease, or change in variation amplitude, may indicate the presence of a reductant deposit in the system. Detection of the deposit may initiate a regeneration cycle in which the operating characteristics of the system change to eliminate the reductant deposit to prevent it from hindering the performance of the exhaust aftertreatment system.
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公开(公告)号：US09988999B2
公开(公告)日：2018-06-05
申请号：US14955678
申请日：2015-12-01
申请人： Cummins Inc.
CPC分类号： F02D41/027 , F01N3/023 , F02D13/06 , F02D17/00 , F02D41/0002 , F02D41/0007 , F02D41/0087 , F02D41/029 , F02D41/405 , F02D2041/001
摘要： A system and method for regeneration of an aftertreatment component are described. The disclosed method can employ any one or combination of operating modes that obtain a target condition of the exhaust gas to support or initiate regeneration of the aftertreatment device.
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公开(公告)号：US09982610B2
公开(公告)日：2018-05-29
申请号：US15155454
申请日：2016-05-16
发明人： Jung Sub Lee , Young Ho Kim , Hyo Sang Cho , Seung Eun Yu
IPC分类号： F02D41/00 , F01N3/021 , F02B37/04 , F01N3/20 , F02D41/18 , F02D41/24 , F02D41/02 , F02D41/14
CPC分类号： F02D41/005 , F01N3/021 , F01N3/2066 , F02B37/04 , F02D41/0007 , F02D41/0077 , F02D41/027 , F02D41/029 , F02D41/1456 , F02D41/187 , F02D41/2422 , Y02T10/144 , Y02T10/47
摘要： A control method of a boosting apparatus includes: driving the boosting apparatus according to driving maps pre-input to a controller, judging driving conditions of an engine, selecting a driving map pre-input to the controller and reflecting the driving conditions in the selected driving map, correcting the driving maps of the boosting apparatus based on the selected driving map and driving the boosting apparatus based on the corrected driving maps, and confirming whether variations in operating amounts of the boosting apparatus are generated and, when the variations are confirmed, correcting the operating amounts of the boosting apparatus and reflecting the corrected operating amounts in the driving maps. In particular, the controller controls an EGR valve according to driving conditions through operation of the boosting apparatus and thus controls the amount of EGR gas supplied to the engine.
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公开(公告)号：US20180023491A1
公开(公告)日：2018-01-25
申请号：US15549813
申请日：2016-02-22
申请人： Carrier Corporation
CPC分类号： F02D41/029 , B60H1/00378 , B60H1/0045 , F01N3/0253 , F01N3/0835 , F01N3/103 , F01N9/002 , F01N2260/04 , F01N2430/06 , F01N2550/02 , F01N2560/06 , F01N2560/14 , F01N2590/10 , F02D41/0245 , F02D41/027 , F02D2041/0022 , F02D2200/0404 , F02D2200/0802 , Y02T10/26
摘要： A transport refrigeration system is provided including a refrigeration unit and a diesel engine powering the refrigeration unit. The diesel engine has an exhaust system for discharging engine exhaust from the diesel engine. An exhaust treatment unit is disposed in the diesel engine exhaust system and includes a diesel oxidation catalyst. An air control valve is configured to control a quantity of air provided to the diesel engine from an air supply fluidly coupled to the diesel engine. A controller is operably coupled to the air control valve and is configured to automatically operate the air control valve to initiate a cleaning cycle of the diesel oxidation catalyst upon detection of a predetermined condition.
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公开(公告)号：US20170175656A1
公开(公告)日：2017-06-22
申请号：US15127627
申请日：2015-03-18
CPC分类号： F02D41/0275 , F01N3/0842 , F01N3/0864 , F01N3/0885 , F01N3/101 , F01N3/2066 , F01N13/009 , F01N2510/0684 , F01N2570/14 , F02D41/0055 , F02D41/0087 , F02D41/027 , F02D41/1475 , F02D41/26 , F02D41/3005 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： In a control system for an internal combustion engine in which an exhaust gas purification catalyst having a lower catalyst layer and an upper catalyst layer disposed at the upper side of the lower catalyst layer is arranged in an exhaust passage of the internal combustion engine, when an operation at a rich air fuel ratio is switched to an operation at a target lean air fuel ratio, switching is made through a first operation in which the air fuel ratio of exhaust gas is temporarily made into a lean air fuel ratio, and a second operation which is carried out after the first operation and in which the air fuel ratio of the exhaust gas is made to change alternately between the rich air fuel ratio and the lean air fuel ratio a plurality of times, whereby the HC poisoning of the catalyst can be recovered at an early stage.
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公开(公告)号：US20170167352A1
公开(公告)日：2017-06-15
申请号：US15375800
申请日：2016-12-12
CPC分类号： F01N11/007 , B01D53/9418 , B01D53/9431 , B01D53/9459 , B01D53/9495 , F01N3/085 , F01N3/105 , F01N3/2066 , F01N3/2073 , F01N3/208 , F01N11/002 , F01N13/009 , F01N2550/02 , F01N2560/025 , F01N2570/04 , F01N2900/0416 , F01N2900/0418 , F01N2900/1402 , F01N2900/1404 , F02D41/0235 , F02D41/027 , F02D2200/0802 , Y02T10/24 , Y02T10/47
摘要： In a deterioration diagnosis apparatus for a selective catalytic reduction (SCR) catalyst in which when an air fuel ratio of a mixture to be combusted in an internal combustion engine is a lean air fuel ratio, inducement processing is executed which is to induce a water gas shift reaction in a pre-stage catalyst, by changing the air fuel ratio of the mixture from the lean air fuel ratio to a predetermined rich air fuel ratio, and diagnosis processing is executed which is to diagnose deterioration of the SCR catalyst based on an output difference between two air fuel ratio sensors at the time of the execution of the inducement processing, when the SCR catalyst is in a state of being subjected to sulfur poisoning resulting from the execution of the S purge processing of the pre-stage catalyst, diagnosis processing is not executed.
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公开(公告)号：US20170152799A1
公开(公告)日：2017-06-01
申请号：US15155454
申请日：2016-05-16
发明人： Jung Sub LEE , Young Ho KIM , Hyo Sang CHO , Seung Eun YU
CPC分类号： F02D41/005 , F01N3/021 , F01N3/2066 , F02B37/04 , F02D41/0007 , F02D41/0077 , F02D41/027 , F02D41/029 , F02D41/1456 , F02D41/187 , F02D41/2422 , Y02T10/144 , Y02T10/47
摘要： A control method of a boosting apparatus includes: driving the boosting apparatus according to driving maps pre-input to a controller, judging driving conditions of an engine, selecting a driving map pre-input to the controller and reflecting the driving conditions in the selected driving map, correcting the driving maps of the boosting apparatus based on the selected driving map and driving the boosting apparatus based on the corrected driving maps, and confirming whether variations in operating amounts of the boosting apparatus are generated and, when the variations are confirmed, correcting the operating amounts of the boosting apparatus and reflecting the corrected operating amounts in the driving maps. In particular, the controller controls an EGR valve according to driving conditions through operation of the boosting apparatus and thus controls the amount of EGR gas supplied to the engine
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