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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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公开(公告)号：US08973349B2
公开(公告)日：2015-03-10
申请号：US13153711
申请日：2011-06-06
CPC分类号： F01N3/0814 , F01N3/103 , F01N3/106 , F01N3/2013 , F01N3/206 , F01N3/2066 , F01N2570/12 , F01N2610/02 , F01N2610/03 , Y02T10/24 , Y02T10/26
摘要： An exhaust gas treatment system is provided, having an internal combustion engine, an exhaust gas conduit, an electrically heated catalyst (“EHC”) device, an oxidization catalyst (“OC”) device, an OC temperature sensor, a hydrocarbon (“HC”) adsorber, and a control module. The hydrocarbon supply is selectively activated for delivery of a hydrocarbon and formation of an exhaust gas and hydrocarbon mixture therein. The EHC device is selectively activated to produce heat and induce oxidization. The OC device is in fluid communication with the exhaust gas conduit and located downstream of the EHC device. The OC temperature sensor is in fluid communication with the exhaust gas conduit and located downstream of the OC device. The HC adsorber is located downstream of the EHC device. The control module is in communication with the hydrocarbon supply, the EHC device, the OC device, the OC temperature sensor, and the HC adsorber.
摘要翻译： 提供了一种废气处理系统，其具有内燃机，排气导管，电加热催化剂（“EHC”）装置，氧化催化剂（“OC”）装置，OC温度传感器，烃（“HC “）吸附器，以及控制模块。 碳氢化合物供应被选择性地活化用于输送烃和在其中形成废气和烃混合物。 选择性地激活EHC装置产生热量并引起氧化。 OC设备与排气管道流体连通并位于EHC设备的下游。 OC温度传感器与排气管道流体连通，位于OC设备的下游。 HC吸附器位于EHC装置的下游。 控制模块与烃源，EHC装置，OC装置，OC温度传感器和HC吸附器连通。
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公开(公告)号：US08826647B2
公开(公告)日：2014-09-09
申请号：US12768071
申请日：2010-04-27
CPC分类号： F01N3/027
摘要： A method of regenerating a particulate filter is provided. The method includes estimating a stress level of the particulate filter; and selectively controlling current to a heater of the particulate filter based on the stress level.
摘要翻译： 提供了一种再生微粒过滤器的方法。 该方法包括估计颗粒过滤器的应力水平; 并且基于应力水平选择性地控制到微粒过滤器的加热器的电流。
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24.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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公开(公告)号：US08646259B2
公开(公告)日：2014-02-11
申请号：US13082947
申请日：2011-04-08
IPC分类号： F01N3/10
CPC分类号： F01N3/2013 , F01N3/035 , F01N3/103 , F01N3/208 , F01N3/281 , F01N3/2828 , F01N3/2882 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2240/16 , F01N2560/06 , F01N2560/14 , F01N2610/02 , F01N2610/1453 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment system is provided having an internal combustion engine, an exhaust gas conduit, a passive selective catalyst reduction (SCR) device, a heated SCR device, and a control module. The exhaust gas conduit is in fluid communication with and is configured to receive an exhaust gas from the internal combustion engine. The passive SCR device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The passive SCR includes a passive SCR temperature profile. The heated SCR device is in fluid communication with the exhaust gas conduit and is configured to receive the exhaust gas. The heated SCR device is located upstream of the passive SCR. The heated SCR is selectively activated to produce heat. The control module is in communication with the heated SCR and the engine and includes a control logic for determining the passive SCR temperature profile.
摘要翻译： 提供了一种具有内燃机，排气管道，无源选择性催化剂还原（SCR）装置，加热SCR装置和控制模块的废气处理系统。 废气导管与内燃机流体连通并配置成接收来自内燃机的废气。 无源SCR装置与废气导管流体连通并且构造成接收废气。 无源SCR包括无源SCR温度分布。 加热的SCR装置与废气导管流体连通，并被构造成接收废气。 被加热的SCR装置位于无源SCR的上游。 加热的SCR被选择性地激活以产生热量。 控制模块与加热的SCR和发动机连通，并且包括用于确定被动SCR温度分布的控制逻辑。
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26.发明授权公开(公告)号：US08479496B2
公开(公告)日：2013-07-09
申请号：US12496773
申请日：2009-07-02
CPC分类号： F01N3/035 , F01N3/027 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N9/002 , F01N2240/16 , F01N2510/06 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2610/02 , Y02T10/24 , Y02T10/47
摘要： An exhaust system includes N heating elements and a particulate matter (PM) filter. The N heating elements heat N portions of an exhaust gas. At least one of the N heating elements is coated with a first selective catalytic reduction (SCR) catalyst. The PM filter has an inlet that receives the N portions of the exhaust gas heated by the N heating elements. Each of the N portions of the exhaust gas heats a corresponding region of the inlet. N is an integer greater than 1.
摘要翻译： 排气系统包括N个加热元件和颗粒物质（PM）过滤器。 N个加热元件加热废气的N个部分。 N个加热元件中的至少一个涂覆有第一选择性催化还原（SCR）催化剂。 PM过滤器具有容纳由N个加热元件加热的废气的N个部分的入口。 废气的N个部分中的每一个加热入口的相应区域。 N是大于1的整数。
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公开(公告)号：US20130125534A1
公开(公告)日：2013-05-23
申请号：US13302225
申请日：2011-11-22
IPC分类号： F01N3/027
CPC分类号： F01N3/027 , F01N9/002 , F01N2900/0422 , F01N2900/1411 , F01N2900/1602 , Y02T10/47
摘要： A method of regenerating a particulate filter that includes an electric heater is provided. The method includes determining a location of particulate matter that remains within at least one region of the particulate filter based on a regeneration event being extinguished; and selectively controlling current to a zone of a plurality of zones of the electric heater to initiate a restrike of the regeneration event based on the location of particulate matter.
摘要翻译： 提供一种再生含有电加热器的微粒过滤器的方法。 该方法包括基于正在熄灭的再生事件确定残留在微粒过滤器的至少一个区域内的颗粒物质的位置; 并且选择性地控制电流到电加热器的多个区域的区域，以基于颗粒物质的位置开始再生事件的再起弧。
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28.发明申请公开(公告)号：US20120277973A1
公开(公告)日：2012-11-01
申请号：US13097552
申请日：2011-04-29
IPC分类号： F02D43/00
CPC分类号： F01N3/103 , F01N3/2013 , F01N13/0097 , F02D41/1446 , F02D2200/0802 , Y02T10/26
摘要： A power system and a method for energizing an electrically heated catalyst are provided. The system includes a battery outputting a first voltage, and a generator outputting a second voltage greater than the first voltage in response to a first signal. The system further includes a controller that generates a second signal to set a first switching device to a first operational state to apply the second voltage to the electrically heated catalyst to increase a temperature of the catalyst, if a first temperature level of the catalyst is less than a first threshold temperature level. The controller generates a third signal to induce the generator to output a third voltage, and generates a fourth signal to set a second switching device to a second operational state to apply the first voltage to the catalyst, if the first temperature level is greater than the first threshold temperature level.
摘要翻译： 提供了一种电力系统和用于激励电加热的催化剂的方法。 该系统包括输出第一电压的电池和响应于第一信号输出大于第一电压的第二电压的发生器。 该系统还包括控制器，其产生第二信号以将第一开关装置设置到第一操作状态，以将第二电压施加到电加热的催化剂以增加催化剂的温度，如果催化剂的第一温度水平较低 比第一阈值温度水平高。 控制器产生第三信号以诱发发电机输出第三电压，并且产生第四信号以将第二开关装置设置到第二操作状态以将第一电压施加到催化剂，如果第一温度水平大于 第一阈值温度水平。
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公开(公告)号：US20120117947A1
公开(公告)日：2012-05-17
申请号：US12946203
申请日：2010-11-15
CPC分类号： F01N3/0814 , F01N3/0238 , F01N3/2066 , F01N3/22 , F01N3/32 , F01N2610/02 , F01N2610/03 , Y02T10/24
摘要： An exhaust gas after treatment system for an engine comprises an oxidation catalyst NOx adsorber wherein an oxidation catalyst compound and a NOx adsorber compound are disposed. A fuel injector is connected to and is in fluid communication with the oxidation catalyst NOx adsorber device for delivery of a hydrocarbon fuel thereto and an air pump is connected to and is in fluid communication with the oxidation catalyst NOx adsorber device for delivery of air thereto. The fuel injector and the air pump supply fuel and air to the oxidation catalyst NOx adsorber device for oxidation thereof and heating of the NOx adsorber compound to a NOx release temperature following shut down of the internal combustion engine.
摘要翻译： 用于发动机的废气后处理系统包括其中设置氧化催化剂化合物和NOx吸附剂化合物的氧化催化剂NO x吸附器。 燃料喷射器连接到氧化催化剂NO x吸附器装置并与之流体连通，用于将碳氢化合物燃料输送到其上，并且空气泵连接到氧化催化剂NO x吸附器装置并与之通气，用于将空气输送到其上。 燃料喷射器和空气泵向氧化催化剂NOx吸附器装置供应燃料和空气，用于氧化它们，并且在内燃机关闭之后将NOx吸附剂化合物加热到NOx释放温度。
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公开(公告)号：US20120117946A1
公开(公告)日：2012-05-17
申请号：US12944287
申请日：2010-11-11
CPC分类号： F01N3/2066 , F01N3/0231 , F01N3/0238 , F01N3/027 , F01N3/035 , F01N3/22 , Y02T10/24
摘要： Control methods for regenerating particulate filter and an apparatus that includes an internal combustion engine, an exhaust gas conduit in fluid communication with and configured to receive exhaust gas from the internal combustion engine, and a particulate filter assembly in fluid communication with the exhaust gas conduit and configured to receive exhaust gas flowing therethrough. The particulate filter assembly includes a particulate filter to remove particulates from the exhaust gas, a heater device disposed near a front face of the particulate filter, to supply heat for regeneration of the particulate filter after shut-off of the internal combustion engine, and an air pump to input air into the particulate filter to transfer the supplied heat from the heater device to the particulate filter.
摘要翻译： 用于再生颗粒过滤器的控制方法和包括内燃机，与内燃机流体连通并构造成接收来自内燃机的废气的排气管道的设备，以及与废气管道流体连通的颗粒过滤器组件，以及 被配置为接收流过其中的废气。 颗粒过滤器组件包括微粒过滤器以从废气中除去微粒，设置在微粒过滤器前表面附近的加热器装置，用于在关闭内燃机之后为颗粒过滤器再生提供热量， 空气泵将空气输入到微粒过滤器中以将供应的热量从加热器装置转移到微粒过滤器。
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