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公开(公告)号：US08881504B2
公开(公告)日：2014-11-11
申请号：US13560136
申请日：2012-07-27
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , B60R16/03 , F01N3/106 , F01N9/00 , F01N2240/16 , H02J7/14 , Y02A50/2325 , Y02T10/24 , Y02T10/47 , Y02T10/7011
摘要： An exhaust gas treatment system for an internal combustion engine is provided. The exhaust gas system includes an exhaust gas conduit, a generator, a vehicle electrical system, a primary energy storage device, a rechargeable secondary energy storage device, an electrically heated catalyst (“EHC”) device, and a control module. The primary energy storage device is selectively connected to the generator. The primary energy storage device has a threshold state of charge (“SOC”). The rechargeable secondary energy storage device is selectively connected to the generator and the vehicle electrical system. The EHC device is in fluid communication with the exhaust gas conduit. The EHC device has an electric heater that is selectively connected the generator for receiving energy and a selectively activated catalyst that is heated to a respective light-off temperature.
摘要翻译： 提供了一种用于内燃机的废气处理系统。 排气系统包括废气导管，发电机，车辆电气系统，一次能量存储装置，可再充电次级储能装置，电加热催化剂（“EHC”）装置和控制模块。 一次能量存储装置选择性地连接到发电机。 一次能量存储装置具有阈值充电状态（“SOC”）。 可再充电二次能量存储装置选择性地连接到发电机和车辆电气系统。 EHC装置与废气管道流体连通。 EHC装置具有选择性地连接发电机以接收能量的电加热器和被加热到相应的关闭温度的选择性活化的催化剂。
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公开(公告)号：US20130312389A1
公开(公告)日：2013-11-28
申请号：US13477899
申请日：2012-05-22
申请人： Ognyan N. Yanakiev , Igor Anilovich , Cristian Taibi , Charles E. Solbrig , Janean E. Kowalkowski
发明人： Ognyan N. Yanakiev , Igor Anilovich , Cristian Taibi , Charles E. Solbrig , Janean E. Kowalkowski
IPC分类号： F01N11/00
CPC分类号： F01N11/00 , F01N9/002 , F01N2550/04 , F01N2560/025 , F01N2560/05 , F01N2560/14 , F02B37/22 , Y02T10/47
摘要： An internal combustion engine includes a particulate filter that is configured to treat exhaust gas. A method for monitoring the particulate filter includes employing a soot sensor to monitor the exhaust gas downstream of the particulate filter. A fault is detected in the particulate filter when accumulated soot mass indicated by the soot sensor exceeds a soot mass threshold over a course of engine operation between a first regeneration event and a second regeneration event of the particulate filter. A control module associated with operation of the internal combustion engine is notified of the fault.
摘要翻译： 内燃机包括被配置为处理废气的微粒过滤器。 用于监测颗粒过滤器的方法包括采用烟尘传感器来监测微粒过滤器下游的废气。 在微粒过滤器的第一再生事件和第二再生事件之间的发动机运转过程中，由烟灰传感器指示的累积烟灰质量超过烟灰质量阈值时，在微粒过滤器中检测到故障。 通知与内燃机运转相关的控制模块。
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3.发明申请METHOD AND APPARATUS FOR MONITORING A REDUCTANT INJECTION SYSTEM IN AN EXHAUST AFTERTREATMENT SYSTEM 有权用于在排气系统中监测减少注射系统的方法和装置公开(公告)号：US20110083424A1
公开(公告)日：2011-04-14
申请号：US12576399
申请日：2009-10-09
CPC分类号： F01N11/00 , F01N3/208 , F01N2550/05 , F01N2610/02 , F01N2610/144 , F01N2900/0418 , F01N2900/1806 , F01N2900/1808 , F01N2900/1812 , F01N2900/1822 , Y02T10/24 , Y02T10/47
摘要： An internal combustion engine operating at a lean air/fuel ratio includes a reductant injection system configured to dispense reductant into an exhaust gas feedstream upstream of a selective catalytic reduction device. The reductant injection system includes a reductant delivery system fluidly coupled to a reductant dispensing device that is configured to dispense the reductant. A method for monitoring the reductant injection system includes commanding the reductant dispensing device to dispense reductant at a prescribed reductant flowrate, controlling the reductant delivery system to a preferred operating state, monitoring operation of the reductant delivery system and estimating a reductant flowrate as a function of the monitored operation of the reductant delivery system, and diagnosing operation of the reductant injection system as a function of the prescribed reductant flowrate and the estimated reductant flowrate.
摘要翻译： 以稀薄空气/燃料比工作的内燃机包括还原剂喷射系统，其配置成将还原剂分配到选择性催化还原装置上游的废气进料流中。 还原剂注射系统包括流体耦合到还原剂分配装置的还原剂递送系统，其被配置成分配还原剂。 用于监测还原剂注射系统的方法包括命令还原剂分配装置以规定的还原剂流量分配还原剂，将还原剂递送系统控制到优选的操作状态，监测还原剂递送系统的操作并估计还原剂流量作为 还原剂输送系统的监测操作，以及根据规定的还原剂流速和估计的还原剂流速来诊断还原剂注入系统的操作。
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4.发明申请公开(公告)号：US20130133307A1
公开(公告)日：2013-05-30
申请号：US13304802
申请日：2011-11-28
CPC分类号： F01N3/2066 , B60W10/30 , B60Y2300/474 , F01N3/106 , F01N3/2026 , F01N9/00 , F01N2900/08 , F01N2900/104 , F01N2900/1404 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： A power system and a method for energizing an electrically heated catalyst are provided. The system includes a controller that generates a first control signal to set a switching device to a first operational state if the first temperature level downstream of the catalyst is less than a threshold temperature level and the engine is being decelerated. The controller further generates a second control signal to induce a generator to output a second voltage if the first temperature level is less than the threshold temperature level and the engine is being decelerated, such that the second voltage is applied through the switching device in the first operational state to the catalyst to increase a temperature of the catalyst.
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。 如果催化剂下游的第一温度级别小于阈值温度水平并且发动机正在减速，则该系统包括产生第一控制信号以将开关装置设置为第一操作状态的控制器。 如果第一温度水平低于阈值温度水平并且发动机正在减速，则控制器进一步产生第二控制信号以诱导发电机输出第二电压，使得第二电压通过开关装置在第一 催化剂的操作状态以增加催化剂的温度。
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5.发明授权Ammonia (NH3) storage control system and method at low nitrogen oxide (NOx) mass flow rates 有权氨（NH3）储存控制系统和低氮氧化物（NOx）质量流量的方法公开(公告)号：US08096110B2
公开(公告)日：2012-01-17
申请号：US12273751
申请日：2008-11-19
申请人： Charles E. Solbrig
发明人： Charles E. Solbrig
IPC分类号： F01N3/00
CPC分类号： F02D41/1453 , F01N3/021 , F01N3/103 , F01N3/208 , F01N13/009 , F02D41/0055 , F02D41/1446 , F02D41/187 , Y02T10/47
摘要： A control system comprising an ammonia (NH3) storage level determination module that determines a NH3 storage level in an exhaust system, a desired NH3 storage level determination module that determines a desired NH3 storage level based on an exhaust temperature, and a nitrogen oxide (NOx) mass flow rate control module that controls a NOx mass flow rate based on a difference between the NH3 storage level and the desired NH3 storage level. A method comprising determining a NH3 storage level in an exhaust system, determining a desired NH3 storage level based on an exhaust temperature, and controlling a NOx mass flow rate based on a difference between the NH3 storage level and the desired NH3 storage level.
摘要翻译： 一种控制系统，包括确定排气系统中NH 3储存水平的氨（NH 3）储存水平确定模块，基于排气温度确定所需NH 3储存水平的所需NH 3储存水平确定模块和氮氧化物（NOx ）质量流量控制模块，其基于NH 3储存水平和所需NH 3储存水平之间的差异来控制NOx质量流量。 一种方法，包括确定排气系统中的NH 3储存水平，基于排气温度确定所需的NH 3储存水平，以及基于NH 3储存水平和所需NH 3储存水平之间的差来控制NOx质量流量。
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6.发明授权Robust design of diagnostic enabling conditions for SCR NOx conversion efficiency monitor 有权可靠的SCR可靠性设计，可用于SCR NOx转换效率监控公开(公告)号：US08091416B2
公开(公告)日：2012-01-10
申请号：US12355094
申请日：2009-01-16
IPC分类号： G01M15/10
CPC分类号： F01N3/2066 , F01N11/00 , Y02T10/24 , Y02T10/47
摘要： A method for controlling a malfunction catalyst diagnostic test that determines a malfunction status of a catalyst within a selective catalytic reduction device includes monitoring an exhaust gas flow within an aftertreatment system, estimating an effect of the exhaust gas flow on an estimated reductant storage on a catalyst within the selective catalytic reduction device, and selectively disabling the malfunction catalyst diagnostic test based upon the estimating the effect of the exhaust gas flow on the estimated reductant storage.
摘要翻译： 一种用于确定选择性催化还原装置内的催化剂的故障状态的故障催化剂诊断试验的方法包括监测后处理系统中的废气流，估计废气流对催化剂上估计的还原剂储存的影响 在选择性催化还原装置内，并且基于估计废气流对估计的还原剂储存器的影响，选择性地禁用故障催化剂诊断试验。
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7.发明申请TEMPERATURE CONTROL SYSTEM AND METHOD FOR PARTICULATE FILTER REGENERATION USING A HYDROCARBON INJECTOR 有权温度控制系统和使用油墨注射器进行过滤器再生的方法公开(公告)号：US20100076666A1
公开(公告)日：2010-03-25
申请号：US12464975
申请日：2009-05-13
CPC分类号： F01N3/023
摘要： A control system includes a first module, a fuel determination module, a temperature error correction module, and a hydrocarbon injection control module. The first module determines a temperature difference between a desired inlet temperature of a particulate filter (PF) and an outlet temperature of a first catalyst. The fuel determination module determines an uncorrected desired fuel value based on the temperature difference, an ambient temperature, and a mass flow of exhaust gas. The temperature error correction module generates a desired fuel value based on the uncorrected desired fuel value. The hydrocarbon injection control module controls a hydrocarbon injector based on the desired fuel value.
摘要翻译： 控制系统包括第一模块，燃料确定模块，温度误差校正模块和烃喷射控制模块。 第一模块确定微粒过滤器（PF）的期望入口温度和第一催化剂的出口温度之间的温度差。 燃料确定模块基于温度差，环境温度和废气的质量流量来确定未校正的期望燃料值。 温度误差校正模块基于未校正的期望燃料值产生期望的燃料值。 碳氢化合物喷射控制模块基于期望的燃料值控制烃喷射器。
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8.发明申请ON BOARD DIAGNOSTIC MONITOR OF NOX CONVERSION EFFICIENCY FOR AFTERTREATMENT DEVICE 有权用于后处理装置的NOX转换效率的板上诊断监视器公开(公告)号：US20100043397A1
公开(公告)日：2010-02-25
申请号：US12537390
申请日：2009-08-07
IPC分类号： F01N11/00
CPC分类号： F01N3/208 , F01N3/0814 , F01N11/007 , F01N2550/02 , F01N2550/03 , F01N2560/026 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： A method for indicating a malfunctioning catalyst in a powertrain including an internal combustion engine and an aftertreatment system including an aftertreatment device utilizing a catalyst to convert NOx includes monitoring a NOx content entering the aftertreatment system, monitoring a NOx content exiting the aftertreatment system, determining an actual conversion efficiency based upon the NOx content entering the aftertreatment system and the NOx content exiting the aftertreatment system, monitoring factors affecting conversion efficiency within the aftertreatment device, determining a malfunction conversion efficiency indicative of the malfunctioning catalyst based upon the factors affecting conversion efficiency within the aftertreatment device, and indicating the malfunctioning catalyst based upon comparing the actual conversion efficiency to the malfunction conversion efficiency.
摘要翻译： 一种用于指示包括内燃机的动力传动系故障催化剂的方法和包括利用催化剂转化NOx的后处理装置的后处理系统的方法，包括监测进入后处理系统的NOx含量，监测离开后处理系统的NOx含量， 基于进入后处理系统的NOx含量和离开后处理系统的NOx含量的实际转换效率，监测影响后处理装置中转换效率的因素，基于影响转换效率的因素确定指示故障催化剂的故障转换效率 后处理装置，并且基于将实际转换效率与故障转换效率进行比较来指示故障催化剂。
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公开(公告)号：US09429058B2
公开(公告)日：2016-08-30
申请号：US12325480
申请日：2008-12-01
CPC分类号： F01N3/2066 , B01F3/04049 , B01F5/0268 , B01F5/0473 , B01F5/0616 , F01N3/2892 , F01N2240/20 , F01N2610/1453 , Y02T10/24
摘要： A selective catalytic reduction (SCR) system includes an exhaust pipe for receiving an exhaust gas from an engine. A selective catalytic reduction (SCR) unit is provided downstream of the exhaust pipe. A first mixing element including a meshed body defines a first surface, a second surface, and a plurality of openings extending from the first surface to the second surface. The first surface and second surface are parallel to each other and define an angle relative to a flow direction of the exhaust flow. The angle is less than 90 degrees.
摘要翻译： 选择性催化还原（SCR）系统包括用于从发动机接收废气的排气管。 在排气管的下游设有选择性催化还原（SCR）单元。 包括网状体的第一混合元件限定第一表面，第二表面和从第一表面延伸到第二表面的多个开口。 第一表面和第二表面彼此平行并且相对于废气流的流动方向限定一个角度。 角度小于90度。
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10.发明申请公开(公告)号：US20140060014A1
公开(公告)日：2014-03-06
申请号：US13604123
申请日：2012-09-05
IPC分类号： F01N3/10
CPC分类号： F01N9/00 , F01N3/106 , F01N3/2026 , F01N3/2066 , F01N13/009 , H02P2101/45 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment system for an internal combustion engine is provided and includes an exhaust gas conduit, a generator, an electrically heated catalyst (“EHC”) 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 generator operates at a generator speed to produce electrical power. The EHC device is in fluid communication with the exhaust gas conduit. The EHC device includes a monolith structure that is divided into a plurality of segments that define discrete resistive paths. The resistive paths are selectively connected to the generator for receiving electrical power. The control module is in communication with the EHC device, the generator, and the internal combustion engine. The control module includes control logic for determining the generator speed.
摘要翻译： 提供了一种用于内燃机的废气处理系统，包括排气导管，发电机，电加热催化剂（“EHC”）装置和控制模块。 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。 发电机以发电机的速度运行以产生电力。 EHC装置与废气管道流体连通。 EHC装置包括整体结构，其被分成限定离散电阻路径的多个段。 电阻路径选择性地连接到发电机以接收电力。 控制模块与EHC装置，发电机和内燃机连通。 控制模块包括用于确定发电机速度的控制逻辑。
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