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公开(公告)号：US09284870B2
公开(公告)日：2016-03-15
申请号：US12209286
申请日：2008-09-12
摘要： A regeneration system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas and a downstream end. A control module determines a current soot loading level of the PM filter and compares the current soot loading level to a predetermined soot loading level. The control module permits regeneration of the PM filter when the current soot loading level is less than the predetermined soot loading level.
摘要翻译： 再生系统包括具有用于接收废气的上游端和下游端的颗粒物质（PM）过滤器。 控制模块确定PM过滤器的当前烟灰负载水平，并将当前烟灰负荷水平与预定烟灰负荷水平进行比较。 当当前的烟灰负载水平小于预定烟灰负荷水平时，控制模块允许PM过滤器的再生。
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2.发明授权公开(公告)号：US08756917B2
公开(公告)日：2014-06-24
申请号：US13219972
申请日：2011-08-29
CPC分类号： F01N3/02 , F01N3/021 , F01N3/023 , F01N3/0253 , F01N3/035 , F01N3/2013 , F01N3/225 , F01N3/323 , F01N9/002 , F01N2560/06 , F01N2560/07 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment system for an internal combustion engine comprises a particulate filter assembly configured to receive exhaust gas from the engine. The particulate filter assembly comprises an electrically heated catalyst, a particulate filter disposed downstream of the electrically heated catalyst, a hydrocarbon injector, in fluid communication with the exhaust gas, upstream of the electrically heated catalyst and configured to inject excess hydrocarbon into the exhaust gas, an air pump in fluid communication with the exhaust gas upstream of the electrically heated catalyst and configured to deliver air to the exhaust gas to increase the volumetric gas flow rate through, and to decrease the heat residence time in, the particulate filter and a controller configured to operate the hydrocarbon injector, the electrically heated catalyst and the air pump based on predetermined exhaust gas flow rates, temperature thresholds and particulate loadings within the particulate filter.
摘要翻译： 用于内燃机的废气处理系统包括构造成从发动机接收废气的微粒过滤组件。 颗粒过滤器组件包括电加热的催化剂，设置在电加热的催化剂下游的颗粒过滤器，与排气气体连通的碳氢化合物注入器，在电加热的催化剂的上游，并且被配置为将过量的烃注入废气中， 空气泵，其与所述电加热催化剂上游的废气流体连通，并且被配置为将空气输送到所述废气以增加所述微粒过滤器中的体积气体流速，并减少所述微粒过滤器和控制器中的热停留时间 基于预定的废气流量，温度阈值和颗粒过滤器内的颗粒负荷来操作烃注入器，电加热的催化剂和空气泵。
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3.发明授权公开(公告)号：US08584445B2
公开(公告)日：2013-11-19
申请号：US12365415
申请日：2009-02-04
IPC分类号： F01N3/00
CPC分类号： F01N9/002 , F01N3/027 , F01N2240/16 , F01N2560/025 , Y02T10/47
摘要： A method and system for controlling a diesel particulate filter includes a particulate matter load determination module determining a particulate matter load in a diesel particulate filter (DPF), a desired oxygen level determination module determining a desired exhaust gas oxygen level based on the particulate matter load, an oxygen comparison module comparing the desired exhaust gas oxygen level and a measured exhaust gas oxygen level and generating a comparison signal and an electric DPF control module controlling an electrically heated catalyst in response to the comparison signal.
摘要翻译： 用于控制柴油机微粒过滤器的方法和系统包括确定柴油机微粒过滤器（DPF）中的颗粒物质负荷的颗粒物质负荷确定模块，所需氧气水平确定模块基于颗粒物质负荷确定期望的废气氧气水平 氧气比较模块，用于比较所需的废气氧气水平和测量的废气氧气水平，并产生比较信号，以及响应于比较信号控制电加热的催化剂的电DPF控制模块。
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4.发明授权公开(公告)号：US08511069B2
公开(公告)日：2013-08-20
申请号：US12539838
申请日：2009-08-12
CPC分类号： F01N3/027 , F01N3/103 , F01N2560/026 , F01N2560/08 , F01N2560/14 , F01N2610/02 , F01N2610/03
摘要： A method for controlling an engine includes receiving a request to regenerate a particulate matter filter and regulating, in response to the request, operation of the engine and an electric heater that heats an inlet surface of the filter such that for a first period, the heater maintains the inlet surface within a first temperature range above a regeneration temperature of the filter and combustion of a first mass of accumulated PM within the filter is initiated, for a second period following the first period, exhaust cools the inlet surface to within a second temperature range below the regeneration temperature and combustion of the first mass is inhibited, and for a third period following the second period, the inlet surface is maintained within a third temperature range above the regeneration temperature and a second mass of the accumulated PM is combusted. A related control system is also provided.
摘要翻译： 一种用于控制发动机的方法包括接收再生颗粒状物质过滤器的请求并响应于该要求调节发动机的操作和加热过滤器的入口表面的电加热器，使得在第一时间段内，加热器 将入口表面保持在高于过滤器的再生温度的第一温度范围内，并且在第一时间段之后的第二时间段期间启动过滤器内的累积PM的第一质量块的燃烧，排气将入口表面冷却至第二温度 范围低于再生温度，并且抑制第一质量块的燃烧，并且在第二时段之后的第三时段内，入口表面保持在高于再生温度的第三温度范围内，并且累积的PM的第二质量燃烧。 还提供了一个相关的控制系统。
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5.发明授权Elevated exhaust temperature, zoned, electrically-heated particulate matter filter 有权升高的排气温度，分区，电加热颗粒物过滤器公开(公告)号：US08156737B2
公开(公告)日：2012-04-17
申请号：US11941545
申请日：2007-11-16
IPC分类号： F01N3/00
CPC分类号： F01N3/027 , F01N9/002 , F01N2570/10 , Y02T10/47
摘要： A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM.
摘要翻译： 一种系统包括电加热器和布置成与电加热器相邻并与其接触的颗粒物质（PM）过滤器。 控制模块选择性地将发动机的废气温度提高到第一温度，并且当废气温度高于第一温度时，使用电加热器启动PM过滤器的再生。 第一温度大于在非再生操作期间的PM过滤器的最大排气温度，并且小于PM的氧化温度。
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6.发明授权公开(公告)号：US08112990B2
公开(公告)日：2012-02-14
申请号：US12174069
申请日：2008-07-16
IPC分类号： F01N3/10
CPC分类号： F01N9/002 , F01N3/027 , F01N3/035 , F01N13/009 , F01N2240/16 , F01N2560/06 , F01N2560/08 , Y02T10/47
摘要： A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.
摘要翻译： 系统包括颗粒物质（PM）过滤器，传感器，加热元件和控制模块。 PM过滤器包括具有接收排气的上游端，下游端和多个区。 传感器检测废气的温度。 控制模块控制加热元件的电流，使其中一个区域对流，并启动再生过程。 当温度小于预定温度时，控制模块相对于参考再生电流水平选择性地增加到加热元件的电流。
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7.发明授权High exhaust temperature, zoned, electrically-heated particulate matter filter 有权高排气温度，分区，电加热颗粒物过滤器公开(公告)号：US09140159B2
公开(公告)日：2015-09-22
申请号：US11950545
申请日：2007-12-05
CPC分类号： F01N3/035 , F01N3/025 , F01N3/027 , F01N9/002 , F01N13/009 , F01N2240/16 , F02D41/0245 , F02D41/029 , Y02T10/26 , Y02T10/47
摘要： A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.
摘要翻译： 一种系统包括颗粒物质（PM）过滤器，电加热器和控制电路。 电加热器包括多个区域，每个区域对应于沿着PM过滤器的长度的纵向区域。 第一区域包括多个不连续的子区域。 控制电路基于PM滤波器的估计负载水平和排气流量来确定是否需要再生。 响应于需要再生的确定，控制电路：控制发动机的运行参数以在第一时段期间将排气温度升高到第一温度; 第一个阶段后，激活第一个区域; 响应于达到的最小过滤面温度来停用第一区域; 在停用第一区之后，激活第二区; 并且响应于达到的最小过滤器面温度而停用第二区域。
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公开(公告)号：US08950177B2
公开(公告)日：2015-02-10
申请号：US12486237
申请日：2009-06-17
CPC分类号： F01N3/027 , F01N3/106 , F01N9/002 , F01N13/009 , F01N2560/025 , F01N2560/06 , F01N2560/14 , F01N2900/08 , F01N2900/1606 , Y02T10/47
摘要： A control system includes a heater control module and a particulate matter (PM) load module. The heater control module selectively activates an electric heater to initiate regeneration in a zone of a particulate filter and deactivates the electric heater after the regeneration is initiated. The regeneration continues along a length of the particulate filter after the electric heater is deactivated. The PM load module determines a PM load based on an outlet temperature of the particulate filter after the regeneration is initiated.
摘要翻译： 控制系统包括加热器控制模块和颗粒物（PM）负载模块。 加热器控制模块选择性地激活电加热器以在微粒过滤器的区域中启动再生，并且在再生开始之后使电加热器停用。 在电加热器停用之后，再生沿颗粒过滤器的长度继续进行。 PM负载模块根据微生物过滤器在再生开始后的出口温度来确定PM负荷。
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9.发明授权Electric heater and control system and method for electrically heated particulate filters 有权电加热器及电加热微粒过滤器的控制系统及方法公开(公告)号：US08475574B2
公开(公告)日：2013-07-02
申请号：US12536089
申请日：2009-08-05
CPC分类号： F01N3/027 , F01N3/103 , F01N9/002 , F01N13/009 , F01N2240/16 , Y02T10/47
摘要： An exhaust treatment system comprises a particulate matter filter, a first heater element, and a second heater element. The particulate matter (PM) filter filters PM from exhaust gas and includes N zones. Each of the N zones includes an inlet area that receives a portion of the exhaust gas. N is an integer greater than one. The first heater element includes a contact area that heats exhaust gas input to an inlet area of a first one of the N zones. The second heater element includes a second contact area that heats exhaust gas input to an inlet area of a second one of the N zones. A ratio of the contact area of the first heater element to the inlet area of the first zone is greater than a ratio of the contact area of the second heater element to the inlet area of the second zone.
摘要翻译： 排气处理系统包括颗粒物质过滤器，第一加热器元件和第二加热器元件。 颗粒物（PM）过滤器从废气中过滤PM并且包括N个区域。 N个区域中的每一个包括接收废气的一部分的入口区域。 N是大于1的整数。 第一加热器元件包括加热输入到N个区域中的第一个的入口区域的废气的接触区域。 第二加热器元件包括第二接触区域，其加热输入到N个区域中的第二个区域的入口区域的废气。 第一加热器元件的接触面积与第一区域的入口面积的比率大于第二加热器元件与第二区域的入口面积的接触面积的比率。
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10.发明授权Variable power distribution for zoned regeneration of an electrically heated particulate filter 有权电加热颗粒过滤器的分区再生的可变功率分布公开(公告)号：US08146350B2
公开(公告)日：2012-04-03
申请号：US12146827
申请日：2008-06-26
IPC分类号： F01N3/027
摘要： A system includes a particulate matter (PM) filter with multiple zones, an electric heater and a control module. The electrical heater includes heater segments, which each correspond with a respective one of the zones. The electrical heater is arranged upstream from and is proximate with the PM filter. The control module selectively applies a first energy level to a first one of the zones via a first one of the heater segments to initiate regeneration in the first zone. The control module also selectively applies a second energy level that is less than the first energy level to a second one of the zones via a second one of the heater segments to initiate regeneration in the second zone.
摘要翻译： 系统包括具有多个区域的颗粒物质（PM）过滤器，电加热器和控制模块。 电加热器包括加热器段，其各自对应于相应的一个区域。 电加热器布置在PM过滤器的上游并且靠近PM过滤器。 控制模块经由加热器段中的第一个选择性地将第一能级施加到第一区，以在第一区中启动再生。 控制模块还经由加热器段中的第二个选择性地将小于第一能级的第二能级施加到第二区中，以启动第二区中的再生。
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