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1.发明申请公开(公告)号：US20150238903A1
公开(公告)日：2015-08-27
申请号：US14189398
申请日：2014-02-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rahul Mital , Jianwen Li , Andrea De Filippo , Chang H. Kim , Shouxian Ren
IPC: B01D53/94
CPC classification number: B01D53/9495 , B01D53/9409 , B01D53/9431 , B01D2258/012 , F01N3/021 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N9/00 , F01N13/009 , F01N2410/00 , F01N2430/06 , F01N2610/02 , F01N2610/03 , Y02T10/24 , Y02T10/47
Abstract: A method is disclosed of providing a fuel efficient regeneration of an exhaust after-treatment (AT) system that includes a lean oxides of nitrogen (NOX) trap (LNT) and a selective catalytic reduction filter (SCRF) positioned downstream of the LNT. The method includes regulating a selectable position valve. The valve permits a first gas flow portion to pass through the LNT and diverts a remaining second portion of exhaust gas flow from a first passage connecting an engine and the AT system to a second exhaust passage to thereby bypass the LNT. The method also includes regulating a first device to inject fuel into the first portion of the exhaust gas flow. The injection of fuel in to the first portion of the exhaust gas flow provides fuel efficient regeneration of the LNT and promotes NOX conversion and ammonia (NH3) formation in the LNT. A system employing the method is also disclosed.
Abstract translation: 公开了一种提供排气后处理（AT）系统的燃料效率再生的方法，其包括位于LNT下游的氮（NOX）捕集器（LNT）和选择性催化还原过滤器（SCRF）的贫氧化物。 该方法包括调节可选位置阀。 阀允许第一气体流动部分穿过LNT并将剩余的第二部分废气流从连接发动机和AT系统的第一通道转移到第二排气通道，从而绕过LNT。 该方法还包括调节第一装置以将燃料喷射到废气流的第一部分中。 将燃料喷射到废气流的第一部分中提供了LNT的燃料效率再生，并促进了LNT中的NOX转化和氨（NH 3）形成。 还公开了一种采用该方法的系统。
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2.发明申请WASTE HEAT RECOVERY SYSTEM WITH INTEGRATED HYDROCARBON ADSORBER, AND METHOD THEREOF 有权具有集成碳氢化合物的废热回收系统及其方法公开(公告)号：US20140352303A1
公开(公告)日：2014-12-04
申请号：US13906743
申请日：2013-05-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Halim G. Santoso , Eugene V. Gonze , Chang H. Kim
IPC: F02B43/02
CPC classification number: F02B43/02 , F01N3/0835 , F01N3/0878 , F01N3/10 , F01N5/02 , F01N9/00 , F01N2240/02 , F01N2240/20 , F01N2260/024 , F01N2410/02 , F01N2410/12 , F01N2510/063 , F01N2900/1404 , F01N2900/1602 , Y02A50/2322 , Y02T10/16 , Y02T10/20 , Y02T10/32 , Y02T10/47
Abstract: A waste heat recovery system with an integrated hydrocarbon adsorber for a vehicle having an internal combustion engine that generates exhaust gas containing hydrocarbons, and a catalytic converter, includes an exhaust gas conduit, an exhaust gas heat exchanger, a heat exchanger bypass valve, a coolant circuit with a coolant bypass and a coolant bypass valve, and a controller. The exhaust gas heat exchanger includes at least one channel through which the exhaust gas is flowable, the channel having an interior surface coated with a hydrocarbon adsorbing material configured to adsorb hydrocarbons. The heat exchanger and coolant bypass valves are configured to selectively direct at least a portion of the exhaust gas and the coolant, respectively, to the exhaust gas heat exchanger or to bypass it. They are controlled by the controller such that the hydrocarbons in the exhaust gas are selectively adsorbable by and desorbable from the coating.
Abstract translation: 一种具有用于车辆的集成烃吸附器的废热回收系统，其具有产生含有烃的废气的内燃机和催化转化器，包括废气导管，排气热交换器，热交换器旁通阀，冷却剂 具有冷却剂旁路和冷却剂旁通阀的电路，以及控制器。 排气热交换器包括排气可流动的至少一个通道，通道具有涂覆有被吸附烃的烃吸附材料的内表面。 热交换器和冷却剂旁通阀被配置为分别将废气和冷却剂的至少一部分分别引导到排气热交换器或绕过它。 它们由控制器控制，使得排气中的烃被选择性地吸附并从涂层中解吸。
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公开(公告)号：US20170114696A1
公开(公告)日：2017-04-27
申请号：US14921722
申请日：2015-10-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chang H. Kim , Michelle H. Wiebenga , Vincent J. Tylutki , David B. Brown , Igor Anilovich , Rahul Mital
CPC classification number: F01N11/002 , F01N3/103 , F01N2370/04 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , F01N2900/1622 , F01N2900/1626 , Y02T10/47
Abstract: A method for diagnosing an Oxidation Catalyst (OC) device of an exhaust gas treatment system is provided. The method monitors a differential temperature across the OC device. The method determines whether the differential temperature reveals a temperature spike. The method determines that the OC device operates properly in response to determining that the differential temperature reveals a temperature spike.
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公开(公告)号：US09376948B2
公开(公告)日：2016-06-28
申请号：US13929899
申请日：2013-06-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chang H. Kim , Steven J. Schmieg , Eugene V. Gonze , Michael J. Paratore, Jr.
CPC classification number: F01N3/0814 , F01N3/035 , F01N3/106 , F01N3/2006 , F01N3/2066 , F01N3/2882 , F01N9/00 , F01N13/0097 , F01N2240/28 , F01N2370/04 , F01N2900/1404 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A method of treating an exhaust gas produced by a vehicle internal combustion engine includes conveying the gas through a first reactor including a non-thermal plasma. The gas includes nitric oxide and is transitionable between a first condition in which the gas has a cold-start temperature that is less than or equal to about 150° C., and a second condition in which the gas has an operating temperature that is greater than about 150° C. During the first condition, the method includes contacting the gas and plasma to oxidize the nitric oxide to nitrogen dioxide and form an effluent that includes nitrogen dioxide. The method includes concurrently conveying the effluent through a second reactor including a diesel oxidation catalyst, and storing the nitrogen dioxide within the second reactor during only the first condition. The method includes, after storing, releasing nitrogen dioxide from the second reactor during only the second condition.
Abstract translation: 一种处理由车辆内燃机产生的废气的方法包括将气体输送通过包括非热等离子体的第一反应器。 气体包括一氧化氮，并且在其中气体具有小于或等于约150℃的冷启动温度的第一条件和其中气体的操作温度更大的第二条件之间是可转换的 在第一条件下，该方法包括使气体和等离子体接触以将一氧化氮氧化成二氧化氮并形成包括二氧化氮的流出物。 该方法包括同时通过包括柴油机氧化催化剂的第二反应器输送流出物，并且在第一个条件期间将二氧化氮储存在第二反应器内。 该方法包括在仅在第二状态下储存之后从第二反应器中释放二氧化氮。
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公开(公告)号：US09016047B2
公开(公告)日：2015-04-28
申请号：US13768283
申请日：2013-02-15
Applicant: GM Global Technology Operations LLC
Inventor： Eugene V. Gonze , Chang H. Kim , Michael J. Paratore, Jr. , George M. Claypole
CPC classification number: F01N3/10 , F01N3/0842 , F01N3/106 , F01N3/2066 , F01N5/02 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2240/02 , F01N2240/36 , F01N2410/06 , F01N2410/12 , F01N2610/02 , Y02T10/16 , Y02T10/24
Abstract: In one embodiment, a method for controlling nitrogen oxides in an exhaust gas received by an exhaust system, the exhaust system including a first selective catalytic reduction device, an exhaust gas heat recovery device and a second selective catalytic reduction device is provided. The method includes flowing the exhaust gas from an internal combustion engine into the first selective catalytic reduction device, receiving the exhaust gas from the first selective catalytic reduction device into the exhaust gas heat recovery device and directing the exhaust gas to a heat exchanger in the exhaust gas heat recovery device based on a temperature of the internal combustion engine proximate moving engine components. The method includes adsorbing nitrogen oxides from the exhaust gas via a nitrogen oxide adsorbing catalyst disposed in the heat exchanger and flowing the exhaust gas from the exhaust gas heat recovery device into the second selective catalytic reduction device.
Abstract translation: 在一个实施方案中，提供了一种用于控制由排气系统接收的废气中的氮氧化物的方法，所述排气系统包括第一选择性催化还原装置，废气热回收装置和第二选择性催化还原装置。 该方法包括将排气从内燃机流入第一选择性催化还原装置，将排气从第一选择性催化还原装置接收到排气热回收装置中，并将废气引导到排气中的热交换器 基于靠近移动的发动机部件的内燃机的温度的气体热回收装置。 该方法包括通过设置在热交换器中的氮氧化物吸附催化剂从排气中吸附氮氧化物，并将废气从排气热回收装置流入第二选择性催化还原装置。
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Patent Agency Ranking
公开(公告)号：US09879587B2
公开(公告)日：2018-01-30
申请号：US14921722
申请日：2015-10-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chang H. Kim , Michelle H. Wiebenga , Vincent J. Tylutki , David B. Brown , Igor Anilovich , Rahul Mital
CPC classification number: F01N11/002 , F01N3/103 , F01N2370/04 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , F01N2900/1622 , F01N2900/1626 , Y02T10/47
Abstract: A method for diagnosing an Oxidation Catalyst (OC) device of an exhaust gas treatment system is provided. The method monitors a differential temperature across the OC device. The method determines whether the differential temperature reveals a temperature spike. The method determines that the OC device operates properly in response to determining that the differential temperature reveals a temperature spike.
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7.发明授权System and method for enhancing the performance of a selective catalytic reduction device 有权用于提高选择性催化还原装置的性能的系统和方法公开(公告)号：US09140170B2
公开(公告)日：2015-09-22
申请号：US14010604
申请日：2013-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rahul Mital , Jianwen Li , Justin Adam Shetney , Chang H. Kim , Matthew J. Myers
CPC classification number: F01N11/002 , F01N3/021 , F01N3/208 , F01N9/00 , F01N9/002 , F01N2610/02 , F01N2610/1493 , F01N2900/102 , F01N2900/1411 , F01N2900/1602 , F01N2900/1606 , F01N2900/1812 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A system and method is provided for enhancing the performance of an SCR device, particularly by routinely reducing the amount of reductant deposits accumulated in an exhaust gas system, when the reductant is injected at a reduced temperature. The system may include an engine, an exhaust gas system, an SCR device, an injection device, and a controller configured to execute the present method. The controller may be configured to select an initial injection rate and an initial injection temperature for the reductant; estimate the amount of accumulated reductant deposits present within the exhaust gas system; compare the amount of accumulated reductant deposits to a threshold amount of reductant deposits allowable in the exhaust gas system; and initiate a reductant deposit burn-off mode when the amount of accumulated reductant deposits is greater than the threshold amount of reductant deposits allowable in the exhaust gas system.
Abstract translation: 提供一种用于提高SCR装置的性能的系统和方法，特别是当还原剂在降低的温度下注入时，常规地减少积聚在排气系统中的还原剂沉积物的量。 该系统可以包括发动机，排气系统，SCR装置，注射装置和被配置为执行本方法的控制器。 所述控制器可以被配置为选择所述还原剂的初始注入速率和初始注入温度; 估计排气系统中存在的累积还原剂沉积物的量; 将累积的还原剂沉积物的量与排气系统中允许的还原剂沉积量进行比较; 并且当累积的还原剂沉积物的量大于排气系统中允许的还原剂沉积物的阈值量时，引发还原剂沉积燃烧模式。
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8.发明申请SYSTEM AND METHOD FOR ENHANCING THE PERFORMANCE OF A SELECTIVE CATALYTIC REDUCTION DEVICE 有权用于增强选择性催化还原装置的性能的系统和方法公开(公告)号：US20150059317A1
公开(公告)日：2015-03-05
申请号：US14010604
申请日：2013-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rahul Mital , Jianwen Li , Justin Adam Shetney , Chang H. Kim , Matthew J. Myers
IPC: F01N11/00
CPC classification number: F01N11/002 , F01N3/021 , F01N3/208 , F01N9/00 , F01N9/002 , F01N2610/02 , F01N2610/1493 , F01N2900/102 , F01N2900/1411 , F01N2900/1602 , F01N2900/1606 , F01N2900/1812 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A system and method is provided for enhancing the performance of an SCR device, particularly by routinely reducing the amount of reductant deposits accumulated in an exhaust gas system, when the reductant is injected at a reduced temperature. The system may include an engine, an exhaust gas system, an SCR device, an injection device, and a controller configured to execute the present method. The controller may be configured to select an initial injection rate and an initial injection temperature for the reductant; estimate the amount of accumulated reductant deposits present within the exhaust gas system; compare the amount of accumulated reductant deposits to a threshold amount of reductant deposits allowable in the exhaust gas system; and initiate a reductant deposit burn-off mode when the amount of accumulated reductant deposits is greater than the threshold amount of reductant deposits allowable in the exhaust gas system.
Abstract translation: 提供一种用于提高SCR装置的性能的系统和方法，特别是当还原剂在降低的温度下注入时，常规地减少积聚在排气系统中的还原剂沉积物的量。 该系统可以包括发动机，排气系统，SCR装置，注射装置和被配置为执行本方法的控制器。 所述控制器可以被配置为选择所述还原剂的初始注入速率和初始注入温度; 估计排气系统中存在的累积还原剂沉积物的量; 将累积的还原剂沉积物的量与排气系统中允许的还原剂沉积量进行比较; 并且当累积的还原剂沉积物的量大于排气系统中允许的还原剂沉积物的阈值量时，引发还原剂沉积燃烧模式。
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公开(公告)号：US20150000253A1
公开(公告)日：2015-01-01
申请号：US13929899
申请日：2013-06-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chang H. Kim , Steven J. Schmieg , Eugene V. Gonze , Michael J. Paratore, JR.
IPC: F01N3/10
CPC classification number: F01N3/0814 , F01N3/035 , F01N3/106 , F01N3/2006 , F01N3/2066 , F01N3/2882 , F01N9/00 , F01N13/0097 , F01N2240/28 , F01N2370/04 , F01N2900/1404 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: A method of treating an exhaust gas produced by a vehicle internal combustion engine includes conveying the gas through a first reactor including a non-thermal plasma. The gas includes nitric oxide and is transitionable between a first condition in which the gas has a cold-start temperature that is less than or equal to about 150° C., and a second condition in which the gas has an operating temperature that is greater than about 150° C. During the first condition, the method includes contacting the gas and plasma to oxidize the nitric oxide to nitrogen dioxide and form an effluent that includes nitrogen dioxide. The method includes concurrently conveying the effluent through a second reactor including a diesel oxidation catalyst, and storing the nitrogen dioxide within the second reactor during only the first condition. The method includes, after storing, releasing nitrogen dioxide from the second reactor during only the second condition.
Abstract translation: 一种处理由车辆内燃机产生的废气的方法包括将气体输送通过包括非热等离子体的第一反应器。 气体包括一氧化氮，并且在其中气体具有小于或等于约150℃的冷启动温度的第一条件和其中气体的操作温度更大的第二条件之间是可转换的 在第一条件下，该方法包括使气体和等离子体接触以将一氧化氮氧化成二氧化氮并形成包括二氧化氮的流出物。 该方法包括同时通过包括柴油机氧化催化剂的第二反应器输送流出物，并且在第一个条件期间将二氧化氮储存在第二反应器内。 该方法包括在仅在第二状态下储存之后从第二反应器中释放二氧化氮。
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10.发明申请DIESEL OXIDATION CATALYST AGING LEVEL DETERMINATION USING NOX SENSOR NO2 INTERFERENCE 有权柴油氧化催化剂老化水平测定使用NOX传感器NO2干扰公开(公告)号：US20140147339A1
公开(公告)日：2014-05-29
申请号：US13688331
申请日：2012-11-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Raffaello Ardanese , Vincent J. Tylutki , Christopher P. Musienko , Shouxian Ren , Chang H. Kim
CPC classification number: B01D53/9413 , B01D53/9418 , B01D53/9445 , B01D53/9477 , B01D53/9495 , B01D2258/012 , F01N3/103 , F01N3/2066 , F01N11/00 , F01N2550/02 , F01N2560/026 , F01N2560/06 , Y02T10/22 , Y02T10/24 , Y02T10/47
Abstract: A method of determining aging of a diesel oxidation catalyst (DOC) in an engine exhaust system includes receiving a first sensor signal from a first nitrogen oxides (NOx) sensor positioned in exhaust flow upstream of the DOC. The first sensor signal is indicative of an amount of NOx in the exhaust flow upstream of the DOC. The method further includes receiving a second sensor signal from a second NOx sensor positioned in exhaust flow downstream of the DOC. The second sensor signal is indicative of an amount of NOx downstream of the DOC. A difference between the first sensor signal and the second sensor signal is calculated via a controller. A DOC aging level based on a predetermined correlation between the difference and DOC aging is then determined by the controller.
Abstract translation: 确定发动机排气系统中的柴油氧化催化剂（DOC）的老化的方法包括从位于DOC上游的排气流中的第一氮氧化物（NOx）传感器接收第一传感器信号。 第一传感器信号表示DOC上游排气流中的NOx的量。 该方法还包括从位于DOC下游的排气流中的第二NOx传感器接收第二传感器信号。 第二传感器信号指示DOC下游的NOx的量。 通过控制器计算第一传感器信号和第二传感器信号之间的差异。 然后由控制器确定基于差异和DOC老化之间的预定相关性的DOC老化水平。
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