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公开(公告)号：US20080302331A1
公开(公告)日：2008-12-11
申请号：US11759447
申请日：2007-06-07
IPC分类号： F02P5/00
CPC分类号： F02D41/1498 , F02D37/02 , F02D41/062 , F02P5/1555 , Y02T10/46
摘要： Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.
摘要翻译： 燃烧发动机的点火正时可以通过确定当前发动机运行的粗糙度来进行控制，将所确定的粗糙度与控制粗糙度进行比较，以确定所确定的粗糙度是否在控制粗糙度的阈值极限内，并且随后改变点火正时 燃料输送事件作为确定的粗糙度和控制粗糙度之间的差异的函数。 优选地，至少当确定的粗糙度不在阈值限度内时，点火正时改变，尽管在改变点火正时时可以考虑其他因素。
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公开(公告)号：US07658178B2
公开(公告)日：2010-02-09
申请号：US11759447
申请日：2007-06-07
IPC分类号： F02P5/06
CPC分类号： F02D41/1498 , F02D37/02 , F02D41/062 , F02P5/1555 , Y02T10/46
摘要： Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.
摘要翻译： 燃烧发动机的点火正时可以通过确定当前发动机运行的粗糙度来进行控制，将所确定的粗糙度与控制粗糙度进行比较，以确定所确定的粗糙度是否在控制粗糙度的阈值极限内，并且随后改变点火正时 燃料输送事件作为确定的粗糙度和控制粗糙度之间的差异的函数。 优选地，至少当确定的粗糙度不在阈值限度内时，点火正时改变，尽管在改变点火正时时可以考虑其他因素。
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公开(公告)号：US20080017168A1
公开(公告)日：2008-01-24
申请号：US11458772
申请日：2006-07-20
IPC分类号： F02M7/00
CPC分类号： F02D41/1498 , F02D41/0085
摘要： Fuel delivery to a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the fuel delivery to the engine in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the fuel delivery is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the fuel delivery to the engine.
摘要翻译： 可以通过确定当前发动机操作的粗糙度来控制燃料输送到内燃机，将所确定的粗糙度与控制粗糙度进行比较，以确定所确定的粗糙度是否在控制粗糙度的阈值极限内，并且改变向发动机的燃料输送 在随后的燃料输送事件中作为所确定的粗糙度和控制粗糙度之间的差的函数。 优选地，至少当确定的粗糙度不在阈值限度内时，燃料输送改变，尽管在改变向发动机的燃料输送时可以考虑其它因素。
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公开(公告)号：US20170342919A1
公开(公告)日：2017-11-30
申请号：US15164462
申请日：2016-05-25
申请人： Joseph Dekar , Roger C. Sager , James J. Daley , William B. Blomquist , Jeffrey P. Wuttke , Russell J. Wakeman , Adam Fleischman , Ronald A. Yannone, JR. , Luis Del Rio , Mark L. Lott , Edward Baker , Michael T. Vincent , Wei-Jun Yang , Aikaterini Tsahalou
发明人： Joseph Dekar , Roger C. Sager , James J. Daley , William B. Blomquist , Jeffrey P. Wuttke , Russell J. Wakeman , Adam Fleischman , Ronald A. Yannone, JR. , Luis Del Rio , Mark L. Lott , Edward Baker , Michael T. Vincent , Wei-Jun Yang , Aikaterini Tsahalou
CPC分类号： F02D41/0045 , F02D41/021 , F02D41/064 , F02M25/0818 , F02M25/0827 , F02M25/0836 , F02M25/0854 , F02M25/089 , F02M35/10222
摘要： An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of HC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.
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5.发明申请DUAL PATH AFTERTREATMENT SYSTEM AND METHOD UTILIZING FUEL AS AN ON-BOARD REDUCTANT FOR NOx SCR 有权双路径后处理系统和使用燃料作为NOx排放减少的板块公开(公告)号：US20160230632A1
公开(公告)日：2016-08-11
申请号：US15018993
申请日：2016-02-09
申请人： Michael A. Smith , Craig L. Dimaggio , Jeffrey P. Wuttke , Andrew Brocker , Travis T. Hamilton , Ken Hardman , Cody Baldwin-Squib
发明人： Michael A. Smith , Craig L. Dimaggio , Jeffrey P. Wuttke , Andrew Brocker , Travis T. Hamilton , Ken Hardman , Cody Baldwin-Squib
CPC分类号： F01N3/2073 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/208 , F01N13/008 , F01N13/011 , F01N13/04 , F01N13/107 , F01N2240/25 , F01N2430/02 , F01N2430/06 , F01N2610/02 , F01N2900/1616 , F01N2900/1814 , Y02T10/22 , Y02T10/24
摘要： A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.
摘要翻译： 提供了一种用于利用燃料作为板上还原剂用于选择性催化还原NOx的系统和方法，并且包括用于控制发动机以产生稀薄的第一排气流和富集的第二排气流的控制器，所述第一排气流和第二排气流在相应的第一和第二 双路后处理系统的通道。 富含的第二废气流与存储在第二通道的NOx储存和还原催化剂中的NOx反应，以再生该催化剂并产生氨。 具有生成的氨的第一排气流和第二排气流在下游公共通道中组合以形成组合的贫排气流，其中运载在其中的氨由用于NOx还原的公共通道的SCR催化剂储存或使用。 发动机随后被控制以产生富有的第一排气流和贫的第二排气流。
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公开(公告)号：US20220235725A1
公开(公告)日：2022-07-28
申请号：US17158258
申请日：2021-01-26
摘要： A cylinder head assembly for an internal combustion engine is provided. In one example implementation, the cylinder head assembly includes a cylinder head, a bypass passage formed within the cylinder head and defining a catalyst cavity, and a bypass catalytic converter disposed within the catalyst cavity, where the bypass catalytic converter is configured to provide emissions reduction during cold start, long idle, and/or low main catalytic converter temperature conditions.
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公开(公告)号：US20190323405A1
公开(公告)日：2019-10-24
申请号：US16014731
申请日：2018-06-21
摘要： An exhaust treatment system configured to treat exhaust gas produced by an engine of a vehicle and its method of operation involve providing a gasoline particulate filter (GPF) configured to trap particulate matter (PM) in the exhaust gas and a utilizing a controller configured to determine a modeled PM load level on the GPF and, based on the modeled PM load level of the GPF, control operation of the engine to maintain at least a minimum PM load level on the GPF, wherein the minimum PM load level is greater than zero and corresponds to an optimized efficiency of the GPF.
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8.发明申请公开(公告)号：US20160169784A1
公开(公告)日：2016-06-16
申请号：US14567632
申请日：2014-12-11
申请人： Michael A. Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P. Wuttke , Brett Schubring , Craig L. Dimaggio , Michael G. Zammit , Michael T. Vincent
发明人： Michael A. Smith , Kiran Premchand , Homayoun Ahari , Jeffrey P. Wuttke , Brett Schubring , Craig L. Dimaggio , Michael G. Zammit , Michael T. Vincent
CPC分类号： G01N33/004 , F01N9/002 , F02B3/06 , G01M15/106 , G01N1/2205 , G01N1/24 , G01N1/38 , G01N15/0656 , G01N33/0037 , Y02A50/245 , Y02A50/25
摘要： A diagnostic system and method for diagnosing the performance of a particulate matter (PM) filter of an exhaust system each involve receiving, by a controller from at least one sensor, a gas component measurement of exhaust gas flowing through the exhaust system and the PM filter. The controller calculates a conversion efficiency of the gas component by the PM filter and compares the calculated conversion efficiency to a predetermined conversion efficiency threshold indicative of an expected conversion efficiency of a flow-through catalyst. The controller then determines whether the PM filter is cracked or damaged based on the comparison between the calculated conversion efficiency and the predetermined conversion efficiency threshold.
摘要翻译： 用于诊断排气系统的颗粒物质（PM）过滤器的性能的诊断系统和方法各自包括由控制器从至少一个传感器接收流过排气系统和PM过滤器的废气的气体成分测量 。 控制器通过PM滤波器计算气体成分的转换效率，将计算出的转换效率与表示流通催化剂的预期转换效率的规定转换效率阈值进行比较。 然后，控制器基于计算的转换效率与预定的转换效率阈值之间的比较来确定PM滤波器是否破裂或损坏。
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公开(公告)号：US20140165537A1
公开(公告)日：2014-06-19
申请号：US13716639
申请日：2012-12-17
申请人： James J. Daley , Robert J. Jerger , Wei-Jun Yang , Jeffrey P. Wuttke , Michael G. Zammit , Andrew Brocker
发明人： James J. Daley , Robert J. Jerger , Wei-Jun Yang , Jeffrey P. Wuttke , Michael G. Zammit , Andrew Brocker
IPC分类号： F01N11/00
CPC分类号： F01N11/007 , F01N9/007 , F01N11/00 , F01N2550/02 , F01N2560/025 , F01N2900/1624 , Y02T10/47
摘要： A catalyst degradation detection method for use with a zero ceria catalyst. The method uses techniques to measure transient responses to engine control events of upstream and downstream sensors to determine catalyst degradation and performance. By measuring transient behavior, the method can determine catalyst degradation and performance based on the limited oxygen storage of precious metal catalysts that do not include added ceria or other materials with high oxygen capture rates.
摘要翻译： 一种与零二氧化铈催化剂一起使用的催化剂降解检测方法。 该方法使用技术来测量对上游和下游传感器的发动机控制事件的瞬态响应，以确定催化剂的劣化和性能。 通过测量瞬态行为，该方法可以基于贵金属催化剂的有限氧储存来确定催化剂降解和性能，所述催化剂不包括添加的二氧化铈或具有高氧捕获速率的其它材料。
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