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1. 发明授权

US08612115B2 Methods for controlling the operation of a particulate filter 有权
标题翻译：控制微粒过滤器运行的方法
公开(公告)号：US08612115B2
公开(公告)日：2013-12-17
申请号：US12871474
申请日：2010-08-30
申请人： Sam George , Suhao He , Achim Karl-Erich Heibel
发明人： Sam George , Suhao He , Achim Karl-Erich Heibel
IPC分类号： F01N3/023 , F02D28/00
CPC分类号： F01N3/0231 , F01N9/002 , F02D41/0235 , F02D2200/0812
摘要： A method of controlling the operation of a particulate filter in an exhaust gas after-treatment system may comprise calculating a ratio of particulate loading rate to filter regeneration rate using a mass-based soot load estimation scheme and comparing the ratio of particulate loading rate to filter regeneration rate to a predetermined threshold value. The method may further comprise controlling operating conditions of the particulate filter to maintain the ratio of particulate loading rate to filter regeneration rate at a value above the predetermined threshold value.
摘要翻译：控制废气后处理系统中的颗粒过滤器的操作的方法可以包括使用基于质量的烟灰负荷估计方案来计算颗粒负载率与过滤器再生速率的比率，并将颗粒负载率与过滤器的比率再生率达到预定阈值。该方法可以进一步包括控制颗粒过滤器的操作条件以将颗粒负载率与过滤器再生速率的比保持在高于预定阈值的值。

2. 发明授权

US08444752B2 Particulate filters and methods of filtering particulate matter 有权
标题翻译：颗粒过滤器和颗粒物过滤方法
公开(公告)号：US08444752B2
公开(公告)日：2013-05-21
申请号：US12604014
申请日：2009-10-22
申请人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： B01D46/00 , B01D50/00 , B01D24/00 , B01D39/00 , B01D39/06 , B01D39/14 , B01D39/20
CPC分类号： B01D46/2474 , B01D46/2425 , B01D46/2451 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D2046/2492 , B01D2046/2496
摘要： A particulate filter may comprise an inlet end, an outlet end, and a plurality of parallel channels disposed and configured to flow fluid from the inlet end to the outlet end, the channels being defined by a plurality of porous walls configured to trap particulate matter. The particulate filter may define at least one filtration region including a first group of channels and at least one bypass region including a second group of channels, wherein at least some of the channels in the first group of channels are plugged at an end thereof, wherein the channels in the second group of channels are unplugged, and wherein greater than or equal to about 70% of the plurality of parallel channels are plugged at an end thereof.
摘要翻译：微粒过滤器可以包括入口端，出口端和多个平行的通道，其布置和构造成将流体从入口端流出到出口端，通道被构造成捕获颗粒物质的多个多孔壁限定。微粒过滤器可以限定至少一个包括第一组通道的过滤区域和至少一个包括第二组通道的旁路区域，其中第一组通道中的至少一些通道在其末端被堵塞，其中第二组通道中的通道被拔出，并且其中大于或等于大约70％的多个并行通道在其末端被堵塞。

3. 发明申请

US20120247088A1 EXHAUST GAS AFTER-TREATMENT SYSTEM 审中-公开
标题翻译：排气后处理系统
公开(公告)号：US20120247088A1
公开(公告)日：2012-10-04
申请号：US13202008
申请日：2010-02-19
申请人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Charles Mitchel Sorensen, JR. , Pushkar Tandon
发明人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Charles Mitchel Sorensen, JR. , Pushkar Tandon
IPC分类号： F01N3/035
CPC分类号： F01N3/0814 , F01N3/033 , F01N3/0821 , F01N3/2066 , F01N13/009 , F01N13/011 , F01N2250/02 , F01N2250/12 , F01N2250/14 , F01N2570/10 , F01N2570/12 , F01N2570/14 , Y02T10/22 , Y02T10/24
摘要： An exhaust gas after-treatment system (10) for a gasoline engine (12) has a three-way catalyst (14) close-coupled to the gasoline engine, a particulate matter control device (18) positioned downstream of the three-way catalyst, a NOx control system (16) positioned downstream of the particulate matter control device. According to one method of operation, the gasoline engine is operated in a stoichiometric condition upon start-up of the engine, the exhaust gas flow generated by the engine is conducted through the exhaust system, and then the gasoline engine (12) is operated in a lean-burn condition after the NOx control system (16) attains a minimum operating temperature.
摘要翻译：用于汽油发动机（12）的废气后处理系统（10）具有紧密耦合到汽油发动机的三元催化剂（14），位于三元催化剂下游的颗粒物质控制装置（18），位于颗粒物质控制装置下游的NOx控制系统（16）。根据一种操作方法，汽油发动机在发动机启动时以化学计量条件运行，由发动机产生的废气流通过排气系统传导，然后汽油发动机（12）在在NOx控制系统（16）达到最低工作温度之后的稀燃状态。

4. 发明申请

US20110209460A1 Systems And Methods For Determining A Particulate Load In A Particulate Filter 有权
标题翻译：用于确定颗粒过滤器中颗粒载荷的系统和方法
公开(公告)号：US20110209460A1
公开(公告)日：2011-09-01
申请号：US12714041
申请日：2010-02-26
申请人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： F01N11/00 , F01N3/023 , B01D46/46
CPC分类号： F01N9/002 , F01N3/023 , F01N2900/0601 , F01N2900/1606 , Y02T10/47
摘要： A method for regenerating a particulate filter may comprise calculating a soot layer state correction factor based on a rate of regeneration and a rate of particulate loading in the particulate filter and calculating an estimated soot load in the particulate filter based on a pressure drop of an exhaust gas flowing through the particulate filter and the calculated soot layer state correction factor. The method for regenerating the particulate filter may further comprise causing regeneration of the particulate filter when the estimated soot load is greater than or equal to a threshold value.
摘要翻译：用于再生颗粒过滤器的方法可以包括基于再生速率和颗粒过滤器中的颗粒负载速率来计算煤烟层状态校正因子，并基于排气压降计算颗粒过滤器中的估计的烟灰负荷流过微粒过滤器的气体和计算出的煤烟层状态校正因子。用于再生颗粒过滤器的方法还可以包括当估计的烟炱负荷大于或等于阈值时引起颗粒过滤器的再生。

5. 发明申请

US20110120088A1 Mass Based Methods And Systems For Estimating Soot Load 有权
标题翻译：基于质量的方法和系统估计烟灰负荷
公开(公告)号：US20110120088A1
公开(公告)日：2011-05-26
申请号：US12625049
申请日：2009-11-24
申请人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
发明人： Sam George , Suhao He , Achim Karl-Erich Heibel , Min Shen
IPC分类号： F01N11/00 , F01N3/00 , G06F19/00
CPC分类号： F01N3/021 , F01N2510/00 , F01N2510/06 , F01N2900/1606 , Y02T10/20
摘要： Mass based methods and systems for estimating soot load in a filter of an after-treatment system for exhaust stream are provided. The after-treatment system can comprise a sensor, a filter, and a processor configured to estimate soot load in the filter based on a mass based multi-layer model. An example system includes a virtual sensor comprising an estimator for providing information corresponding to a filter outlet NO2 concentration. An example method includes the steps of providing the mass based multi-layer model, passing the exhaust stream through the filter, and using the sensor to monitor a condition of the exhaust stream. The example method further includes the steps of calculating a total regeneration rate based on the multi-layer model by solving a second-order ordinary differential equation with a plurality of parameters using an analytical approach, and estimating the soot load based on the calculated total regeneration rate.
摘要翻译：提供了用于估计用于排气流的后处理系统的过滤器中的烟灰负荷的基于质量的方法和系统。后处理系统可以包括传感器，过滤器和被配置为基于基于质量的多层模型来估计过滤器中的烟灰负荷的处理器。示例系统包括虚拟传感器，其包括用于提供与过滤器出口NO 2浓度相对应的信息的估计器。一个示例性方法包括以下步骤：提供基于质量的多层模型，使废气流通过过滤器，并使用传感器来监测废气流的状况。该示例方法还包括以下步骤：基于多层模型，通过使用分析方法求解具有多个参数的二阶常微分方程，并基于所计算的总再生来估计烟灰负荷，计算总再生率率。

6. 发明申请

US20080120968A1 Partial wall-flow filter and diesel exhaust system and method 审中-公开
标题翻译：部分壁流式过滤器和柴油机排气系统及方法
公开(公告)号：US20080120968A1
公开(公告)日：2008-05-29
申请号：US11605895
申请日：2006-11-29
申请人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： F01N3/022 , F01N3/023
CPC分类号： F01N3/035 , F01N3/021 , F01N3/0222 , F01N3/0231 , F01N3/031 , F01N13/009 , F01N13/0093 , F01N2330/06 , F01N2340/04
摘要： A exhaust system and method for venting exhaust from an engine, such as a diesel engine, through an exhaust line coupled to the engine includes a first particulate filter disposed in the exhaust line and “close-coupled” with the engine, and a second particulate filter spaced a distance (d) from the first filter. The first particulate filter is “close-coupled” so that it operates in a passive regeneration mode to a greater extent than the second particulate filter. The first particulate filter may be a partial wall-flow filter including some plugged and some open channels. Some of the plugged channels may be plugged adjacent to an inlet end and others may be plugged adjacent to an outlet end. A partial wall-flow filter is also described having some unplugged flow-through channels and some plugged channels wherein some plugged channels are located adjacent to the inlet end and some are located adjacent to the outlet end.
摘要翻译：排气系统和方法，用于通过与发动机相连的排气管线从诸如柴油发动机的发动机排放废气，其包括设置在排气管中并与发动机“紧耦合”的第一颗粒过滤器和第二颗粒过滤器与第一个过滤器间隔一段距离（d）。第一颗粒过滤器是“紧耦合”的，使得其以比第二微粒过滤器更大的程度在被动再生模式下操作。第一颗粒过滤器可以是包括一些堵塞和一些开放通道的部分壁流过滤器。一些堵塞的通道可以在入口端附近堵塞，而其它通道可以在出口端附近堵塞。还描述了部分壁流式过滤器具有一些未堵塞的流通通道和一些堵塞通道，其中一些堵塞的通道邻近入口端定位，一些堵塞通道邻近出口端定位。

7. 发明授权

US08516804B2 Systems and methods for determining a particulate load in a particulate filter 有权
标题翻译：用于确定颗粒过滤器中的颗粒负荷的系统和方法
公开(公告)号：US08516804B2
公开(公告)日：2013-08-27
申请号：US12714041
申请日：2010-02-26
申请人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： F01N3/18
CPC分类号： F01N9/002 , F01N3/023 , F01N2900/0601 , F01N2900/1606 , Y02T10/47
摘要： A method for regenerating a particulate filter may comprise calculating a soot layer state correction factor based on a rate of regeneration and a rate of particulate loading in the particulate filter and calculating an estimated soot load in the particulate filter based on a pressure drop of an exhaust gas flowing through the particulate filter and the calculated soot layer state correction factor. The method for regenerating the particulate filter may further comprise causing regeneration of the particulate filter when the estimated soot load is greater than or equal to a threshold value.
摘要翻译：用于再生颗粒过滤器的方法可以包括基于再生速率和颗粒过滤器中的颗粒负载速率来计算煤烟层状态校正因子，并基于排气压降计算颗粒过滤器中的估计的烟灰负荷流过微粒过滤器的气体和计算出的煤烟层状态校正因子。用于再生颗粒过滤器的方法还可以包括当估计的烟炱负荷大于或等于阈值时引起颗粒过滤器的再生。

8. 发明授权

US08161738B2 Systems and methods for estimating particulate load in a particulate filter 有权
标题翻译：用于估计颗粒过滤器中的颗粒负荷的系统和方法
公开(公告)号：US08161738B2
公开(公告)日：2012-04-24
申请号：US12324001
申请日：2008-11-26
申请人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Suhao He , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N3/0253 , F01N3/035 , F01N3/103 , F01N3/106 , F01N13/0097 , F01N2560/06 , F01N2560/07 , F01N2560/08 , F01N2560/14 , Y02T10/47
摘要： A method for regenerating a particulate filter may comprise determining a temperature, a flow rate, and a total pressure drop of an exhaust gas flowing through a particulate filter, and determining a corrected soot layer permeability. The method may further comprise calculating an estimated soot load of the particulate filter based on the total pressure drop and the corrected soot layer permeability, and causing regeneration of the particulate filter when the estimated soot load is greater than or equal to a threshold value.
摘要翻译：用于再生颗粒过滤器的方法可以包括确定流过颗粒过滤器的废气的温度，流速和总压降，以及确定校正的烟灰层渗透性。该方法可以进一步包括基于总压降和校正的烟灰层渗透率来计算微粒过滤器的估计烟灰负荷，并且当所估计的烟炱负荷大于或等于阈值时，引起微粒过滤器的再生。

9. 发明申请

US20110132194A1 Partial Wall-Flow Filter and Method. 有权
标题翻译：部分壁流过滤器和方法。
公开(公告)号：US20110132194A1
公开(公告)日：2011-06-09
申请号：US12994565
申请日：2009-05-15
申请人： Izhar Zahoor Ahmed , Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
发明人： Izhar Zahoor Ahmed , Douglas Munroe Beall , Achim Karl-Erich Heibel , Pushkar Tandon
IPC分类号： B01D46/00
CPC分类号： B01D46/2455 , B01D46/2425 , B01D46/2429 , B01D46/2451 , B01D46/2459 , B01D46/2466 , B01D46/247 , B01D46/2474 , B01D2046/2433 , B01D2046/2437 , B01D2046/2492 , B01D2046/2496 , B01D2279/30 , F01N3/021 , F01N3/2828 , F01N13/009 , F02B37/00 , Y02T10/144 , Y02T10/20
摘要： A partial wall-flow filter having some unplugged flow-through channels and some plugged channels. Desirable combinations of filtration efficiency and back pressure may be provided by combinations of t wall≦305 urn, MPD≦20 μm, % P≧50%, and CD≧250 cpsi wherein t wall is the transverse thickness of the porous walls, MPD is a mean pore diameter of the porous walls, % P is the total porosity of the porous walls, and CD is the cell density of the channels. In one embodiment, some of the plugged channels are located adjacent to the inlet end and some are located adjacent to the outlet end. Systems and method including the partial wall-flow filter are also described.
摘要翻译：部分壁流过滤器具有一些未堵塞的流通通道和一些堵塞通道。过滤效率和背压的理想组合可以通过t壁和nlE，305μm，MPD和nlE;20μm，％P≥50％和CD≥250cpsi的组合来提供，其中t壁是多孔壁的横向厚度，MPD是多孔壁的平均孔径，％P是多孔壁的总孔隙率，CD是通道的孔密度。在一个实施例中，一些堵塞的通道位于入口端附近并且一些位于邻近出口端。还描述了包括部分壁流式过滤器的系统和方法。

10. 发明申请

US20100300070A1 Systems And Methods For Controlling Temperature And Total Hydrocarbon Slip 有权
标题翻译：控制温度和总碳氢化合物滑移的系统和方法
公开(公告)号：US20100300070A1
公开(公告)日：2010-12-02
申请号：US12786758
申请日：2010-05-25
申请人： Suhao He , Achim Karl-Erich Heibel , Wenbin Qiu
发明人： Suhao He , Achim Karl-Erich Heibel , Wenbin Qiu
IPC分类号： F01N3/00 , F01N9/00 , F01N11/00
CPC分类号： F01N3/10 , F01N3/0253 , F01N3/103 , F01N3/106 , F01N3/2033 , F01N9/002 , F01N13/0097 , F01N2560/025 , F01N2560/06 , F01N2610/03 , F01N2610/146 , F01N2900/0408 , F01N2900/0411 , F01N2900/1411 , F01N2900/1618 , Y02T10/26 , Y02T10/47
摘要： Systems and methods for controlling temperature and total hydrocarbon slip in an exhaust system are provided. Control systems can comprise an oxidation catalyst, a particulate filter, a fuel injector, and a processor for controlling a fuel injection based on an oxidation catalyst model. Example system includes a virtual sensor comprising a controller for calculating and providing the total hydrocarbon slip to subsystems for after-treatment management based on modeling the oxidation catalyst. Example methods for controlling the temperature and the total hydrocarbon slip in an exhaust system include the steps of providing an oxidation catalyst model, monitoring a condition of the exhaust system, calculating a hydrocarbon fuel injection flow rate and controlling a fuel injection. The example methods further include the steps of determining an error in the oxidation catalyst model based on the monitored condition and changing the oxidation catalyst model to reduce the error.
摘要翻译：提供了用于控制排气系统中的温度和总碳氢化合物滑移的系统和方法。控制系统可以包括氧化催化剂，颗粒过滤器，燃料喷射器和用于基于氧化催化剂模型控制燃料喷射的处理器。示例系统包括虚拟传感器，该虚拟传感器包括控制器，用于基于对氧化催化剂的建模来计算并提供用于后处理管理的子系统的总碳氢化合物滑移。用于控制排气系统中的温度和总碳氢化合物滑移的实例方法包括提供氧化催化剂模型，监测排气系统的状况，计算碳氢化合物燃料喷射流量和控制燃料喷射的步骤。该示例方法还包括基于监测条件确定氧化催化剂模型中的误差并改变氧化催化剂模型以减少误差的步骤。

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