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Patent Agency Ranking
公开(公告)号：US10982579B2
公开(公告)日：2021-04-20
申请号：US16508844
申请日：2019-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianyang Geng , David N. Belton
Abstract: A system operates to bypass one or more exhaust purifying devices during deceleration fuel cut-off (DFCO) events in order to avoid hydrocarbon purging. The system includes an internal combustion engine and exhaust purifying system including a first purifying device and a second purifying device. An exhaust gas sensor monitors an exhaust gas feedstream. A diverter valve is disposed to manage the exhaust gas feedstream and fluidly coupled to an exhaust diversion pipe. A controller detects operation of the engine in a DFCO state and monitors the exhaust gas feedstream via the exhaust sensor. The diverter valve is controlled to divert the exhaust gas feedstream away from at least one of the first and second purifying devices during the DFCO event when the exhaust gas feedstream has an air/fuel ratio that is greater than a threshold air/fuel ratio.
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公开(公告)号：US20210010405A1
公开(公告)日：2021-01-14
申请号：US16508844
申请日：2019-07-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianyang Geng , David N. Belton
Abstract: A system operates to bypass one or more exhaust purifying devices during deceleration fuel cut-off (DFCO) events in order to avoid hydrocarbon purging. The system includes an internal combustion engine and exhaust purifying system including a first purifying device and a second purifying device. An exhaust gas sensor monitors an exhaust gas feedstream. A diverter valve is disposed to manage the exhaust gas feedstream and fluidly coupled to an exhaust diversion pipe. A controller detects operation of the engine in a DFCO state and monitors the exhaust gas feedstream via the exhaust sensor. The diverter valve is controlled to divert the exhaust gas feedstream away from at least one of the first and second purifying devices during the DFCO event when the exhaust gas feedstream has an air/fuel ratio that is greater than a threshold air/fuel ratio.
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3.发明申请公开(公告)号：US20150071823A1
公开(公告)日：2015-03-12
申请号：US14020247
申请日：2013-09-06
Applicant: GM Global Technology Operations LLC
Inventor： Vincent J. Tylutki , David N. Belton , Janean E. Kowalkowski , Igor Anilovich
CPC classification number: F01N11/002 , F01N3/035 , F01N3/18 , F01N3/2066 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A monitoring system for a single can oxidation catalyst (OC)/particulate filter (PF) member includes a controller including a first temperature sensor input configured to receive a first exhaust temperature upstream of an OC portion of the single can OC/PF member, a second temperature sensor input configured to receive a second exhaust temperature downstream of the first temperature. The controller is configured and disposed to calculate an exothermic capacity of the OC portion and determine washcoat deterioration of a PF portion of the single can OC/PF member based on the exothermic capacity of the OC portion.
Abstract translation: 用于单罐氧化催化剂（OC）/颗粒过滤器（PF）构件的监测系统包括控制器，其包括被配置为接收单罐OC / PF构件的OC部分的上游的第一排气温度的第一温度传感器输入， 第二温度传感器输入器，被配置为接收第一温度下游的第二排气温度。 控制器被配置和设置为基于OC部分的放热容量计算OC部分的放热容量并确定单罐OC / PF部件的PF部分的修补基面涂层劣化。
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公开(公告)号：US20150113963A1
公开(公告)日：2015-04-30
申请号：US14065814
申请日：2013-10-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Igor Anilovich , David N. Belton , Vincent J. Tylutki , John F. Van Gilder
CPC classification number: B01D53/9495 , B01D53/9477 , B01D2251/2067 , B01D2251/208 , B01D2255/1021 , B01D2255/1023 , F01N3/035 , F01N3/10 , F01N3/2033 , F01N9/002 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2550/02 , F01N2560/06 , F01N2560/14 , F01N2610/03 , F01N2900/0408 , F01N2900/1621 , Y02A50/2322 , Y02T10/26 , Y02T10/47
Abstract: A method is disclosed for controlling regeneration in a diesel engine after-treatment system having a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). The method includes injecting an amount of fuel into an exhaust gas flow upstream of the DOC to superheat the gas flow and assessing a rate of the warm-up of the DOC. The method also includes determining, in response to the assessed rate of the warm-up of the DOC, an amount of catalyst substance available in the DOC for catalyzing the exhaust gas flow. The method additionally includes reducing the amount of fuel injected into the DOC such that the determined available amount of catalyst substance is utilized in the DOC for catalyzing the exhaust gas flow and a predetermined amount of fuel is permitted to slip through the DOC to maintain regeneration temperature in the DPF. A system and a vehicle are also disclosed.
Abstract translation: 公开了一种用于控制具有柴油机氧化催化剂（DOC）和柴油机微粒过滤器（DPF）的柴油发动机后处理系统中的再生的方法。 该方法包括将一定量的燃料喷射到DOC上游的排气流中，以使气流过热并评估DOC的预热速率。 该方法还包括响应于DOC的预热速率来确定DOC中可用于催化废气流的催化剂物质的量。 该方法还包括减少喷入DOC中的燃料量，使得在DOC中利用确定的可用量的催化剂物质来催化废气流，并允许预定量的燃料通过DOC滑动以保持再生温度 在DPF。 还公开了一种系统和车辆。
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公开(公告)号：US09624809B2
公开(公告)日：2017-04-18
申请号：US14020247
申请日：2013-09-06
Applicant: GM Global Technology Operations LLC
Inventor： Vincent J. Tylutki , David N. Belton , Janean E. Kowalkowski , Igor Anilovich
CPC classification number: F01N11/002 , F01N3/035 , F01N3/18 , F01N3/2066 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A monitoring system for a single can oxidation catalyst (OC)/particulate filter (PF) member includes a controller including a first temperature sensor input configured to receive a first exhaust temperature upstream of an OC portion of the single can OC/PF member, a second temperature sensor input configured to receive a second exhaust temperature downstream of the first temperature. The controller is configured and disposed to calculate an exothermic capacity of the OC portion and determine washcoat deterioration of a PF portion of the single can OC/PF member based on the exothermic capacity of the OC portion.
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