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公开(公告)号：US10100695B2
公开(公告)日：2018-10-16
申请号：US13959250
申请日：2013-08-05
摘要： A dosing control system for an exhaust system of an engine includes: a tank containing a reductant solution having urea; an injector operable to inject the reductant solution into an exhaust flow upstream of an SCR apparatus; first and second NOx sensors disposed to sense NOx emissions in the exhaust flow upstream and downstream, respectively, of the SCR apparatus; and a control module. The control module is disposed in signal communication with the first and second NOx sensors and in operable communication with the injector, the control module being operable to set an original dosing level and decrease a dosing of the reductant solution injected by the injector based on a determination from signals received from the first and second NOx sensors that a reduction in a conversion efficiency of the SCR apparatus below a defined level of conversion efficiency has occurred.
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2.发明授权Regeneration system to regenerate a particulate filter based on code clear diagnostic signal 有权再生系统基于代码清晰的诊断信号再生微粒过滤器公开(公告)号：US09328639B2
公开(公告)日：2016-05-03
申请号：US14022918
申请日：2013-09-10
CPC分类号： F01N3/021 , F01N3/0253 , F01N3/2066 , F01N9/002 , F01N11/00 , F01N13/009 , F01N2550/04 , F01N2900/1606 , Y02T10/47
摘要： An exhaust treatment system includes a particulate filter having a filter substrate configured to trap soot contained in exhaust gas. A regeneration system is configured to perform a regeneration operation that regenerates the particulate filter by burning away soot stored in the filter substrate. A control module is in electrical communication with the regeneration system to generate a first control signal that initiates the regeneration operation based on a comparison between at least one operating condition of the exhaust treatment system and a threshold value. The control module generates a second control signal in response to detecting at least one diagnostic signal. The second control signal initiates the regeneration operation independently of the comparison.
摘要翻译： 排气处理系统包括具有被配置为捕集废气中所含的烟灰的过滤器基板的微粒过滤器。 再生系统被配置为执行再生操作，其通过燃烧存储在过滤器基板中的烟灰来再生微粒过滤器。 控制模块与再生系统电连通以产生基于废气处理系统的至少一个操作条件与阈值之间的比较来启动再生操作的第一控制信号。 响应于检测到至少一个诊断信号，控制模块产生第二控制信号。 第二控制信号独立于比较启动再生操作。
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公开(公告)号：US09003778B2
公开(公告)日：2015-04-14
申请号：US14021143
申请日：2013-09-09
CPC分类号： F01N3/208 , B01D53/90 , B01D53/9418 , B01D53/9431 , B01D53/9495 , B01D2251/2067 , B01D2257/404 , B01D2258/012 , F01N3/2066 , F01N2550/05 , F01N2610/02 , F01N2610/1406 , F01N2900/1818 , Y02A50/2325 , Y02T10/24
摘要： A dosing control system for an exhaust system includes: a reductant fluid tank operable to contain a reductant solution comprising urea; an injector disposed in operable communication between a reductant tank and an SCR apparatus, the injector being operable to inject the reductant solution from the reductant tank into a flow of exhaust upstream of the SCR apparatus; a urea quality sensor (UQS) configured and disposed to sense a concentration of the urea in the reductant solution; and, a control module disposed in signal communication with the UQS and in operable communication with the injector, the control module being operable to adjust a dosing of the reductant solution injected by the injector based on a concentration of the urea in the reductant solution.
摘要翻译： 用于排气系统的计量控制系统包括：还原剂流体箱，其可操作以容纳包含尿素的还原剂溶液; 所述喷射器设置成在还原剂罐和SCR装置之间可操作地连通，所述喷射器可操作以将还原剂溶液从所述还原剂罐注入到SCR装置上游的排气流中; 尿素质量传感器（UQS），其配置和设置为感测所述还原剂溶液中的尿素浓度; 以及控制模块，其设置为与所述UQS信号通信并且与所述注射器可操作地连通，所述控制模块可操作以基于所述还原剂溶液中所述尿素的浓度来调节由所述注射器注入的还原剂溶液的计量。
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4.发明申请公开(公告)号：US20150071823A1
公开(公告)日：2015-03-12
申请号：US14020247
申请日：2013-09-06
CPC分类号： F01N11/002 , F01N3/035 , F01N3/18 , F01N3/2066 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A monitoring system for a single can oxidation catalyst (OC)/particulate filter (PF) member includes a controller including a first temperature sensor input configured to receive a first exhaust temperature upstream of an OC portion of the single can OC/PF member, a second temperature sensor input configured to receive a second exhaust temperature downstream of the first temperature. The controller is configured and disposed to calculate an exothermic capacity of the OC portion and determine washcoat deterioration of a PF portion of the single can OC/PF member based on the exothermic capacity of the OC portion.
摘要翻译： 用于单罐氧化催化剂（OC）/颗粒过滤器（PF）构件的监测系统包括控制器，其包括被配置为接收单罐OC / PF构件的OC部分的上游的第一排气温度的第一温度传感器输入， 第二温度传感器输入器，被配置为接收第一温度下游的第二排气温度。 控制器被配置和设置为基于OC部分的放热容量计算OC部分的放热容量并确定单罐OC / PF部件的PF部分的修补基面涂层劣化。
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5.发明授权Heat generation system for determining a selective catalytic reduction device efficiency 有权用于确定选择性催化还原装置效率的发热系统公开(公告)号：US09415345B2
公开(公告)日：2016-08-16
申请号：US13760558
申请日：2013-02-06
CPC分类号： B01D53/9495 , B01D53/9409 , B01D53/9459 , B01D2251/2062 , B01D2251/208 , F01N3/106 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2560/026 , F01N2610/02 , F01N2610/03 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.
摘要翻译： 公开了一种用于监测废气处理系统的选择性催化还原（SCR））装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内，以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游，以产生热量，如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。
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6.发明授权公开(公告)号：US09074507B2
公开(公告)日：2015-07-07
申请号：US13961239
申请日：2013-08-07
CPC分类号： F01N3/0256 , F01N3/103 , F01N3/2033 , F01N3/2066 , F01N9/002 , F01N11/002 , F01N13/008 , F01N13/009 , F01N2550/04 , F01N2550/05 , F01N2560/06 , F01N2560/14 , F01N2610/03 , F01N2900/0408 , F01N2900/0416 , F01N2900/1602 , F01N2900/1631 , F01N2900/18 , Y02T10/26 , Y02T10/47
摘要： An exhaust gas treatment system includes a particulate filter to collect particulate matter from exhaust gas flowing therethrough. A regeneration module performs a regeneration operation that regenerates the particular filter. The regeneration operation generates an exothermic event which heats the particulate filter above a target temperature that burns the particulate matter. At least one temperature sensor is disposed adjacent the particular filter to determine at least one temperature of the exhaust gas. The exhaust gas treatment system further includes a temperature diagnostic module to determine a temperature profile of the particulate filter based on the temperature of the exhaust gas. The temperature diagnostic module further determines a temperature deviation of the particulate filter based on a comparison between the temperature profile and a target temperature. The temperature diagnostic module diagnoses the regeneration operation based on a plurality of temperature deviations and a selected time period.
摘要翻译： 废气处理系统包括微粒过滤器，用于从流过其中的废气中收集颗粒物质。 再生模块执行再生特定过滤器的再生操作。 再生操作产生放热事件，其将颗粒过滤器加热到燃烧颗粒物质的目标温度之上。 至少一个温度传感器设置在特定过滤器附近以确定废气的至少一个温度。 废气处理系统还包括温度诊断模块，用于基于废气的温度确定微粒过滤器的温度分布。 温度诊断模块还基于温度分布和目标温度之间的比较来确定微粒过滤器的温度偏差。 温度诊断模块基于多个温度偏差和选定的时间段来诊断再生操作。
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7.发明申请HEAT GENERATION SYSTEM FOR DETERMINING A SELECTIVE CATALYTIC REDUCTION DEVICE EFFICIENCY 有权用于确定选择性催化还原装置效率的热量产生系统公开(公告)号：US20140219896A1
公开(公告)日：2014-08-07
申请号：US13760558
申请日：2013-02-06
IPC分类号： B01D53/94
CPC分类号： B01D53/9495 , B01D53/9409 , B01D53/9459 , B01D2251/2062 , B01D2251/208 , F01N3/106 , F01N3/208 , F01N11/00 , F01N2550/02 , F01N2560/026 , F01N2610/02 , F01N2610/03 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.
摘要翻译： 公开了一种用于监测废气处理系统的选择性催化还原（SCR））装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内，以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游，以产生热量，如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。
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公开(公告)号：US09194268B2
公开(公告)日：2015-11-24
申请号：US14053054
申请日：2013-10-14
发明人： Janean E. Kowalkowski , Amr Radwan , Sarah Funk
CPC分类号： F01N3/2066 , F01N3/0885 , F01N3/106 , F01N3/208 , F01N9/002 , F01N11/00 , F01N13/009 , F01N2550/02 , F01N2570/04 , F01N2900/1612 , F02D41/027 , F02D41/029 , F02D2200/0811 , Y02T10/24 , Y02T10/47
摘要： Embodiments of the invention include a method for performing diagnostics of a selective catalytic reduction (“SCR”) device in an exhaust gas treatment system of an internal combustion engine. The method includes monitoring an amount of sulfur in the SCR device of the exhaust treatment system and monitoring, by an SCR diagnostics module, an efficiency of the SCR device and indicating when the efficiency of the SCR device falls below an efficiency diagnostics threshold. Based on determining that the amount of sulfur in the SCR device is above a first threshold, the method includes disabling an operation of the SCR diagnostics module.
摘要翻译： 本发明的实施例包括在内燃机的废气处理系统中进行选择性催化还原（SCR）装置的诊断的方法。 该方法包括监测排气处理系统的SCR装置中的硫含量，并由SCR诊断模块监测SCR装置的效率，并指示SCR装置的效率何时降低到效率诊断阈值以下。 基于确定SCR装置中的硫含量高于第一阈值，该方法包括禁用SCR诊断模块的操作。
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公开(公告)号：US09163537B2
公开(公告)日：2015-10-20
申请号：US13916842
申请日：2013-06-13
摘要： An exhaust gas treatment system includes a particulate filter to collect particulate matter from exhaust gas flowing therethrough. The particulate filter realizes a pressure thereacross in response to the exhaust gas flow. A delta pressure sensor determines a first pressure upstream from the particulate filter and a second pressure downstream from the particulate filter. A delta pressure module is in electrical communication with the delta pressure sensor. The delta pressure module determines a pressure differential value based on a difference between the first pressure and the second pressure and generates a diagnostic signal based on a plurality of the pressure differential values and a predetermined time period.
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公开(公告)号：US20150033705A1
公开(公告)日：2015-02-05
申请号：US13959250
申请日：2013-08-05
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N11/00 , F01N2550/02 , F01N2560/026 , F01N2560/14 , F01N2610/02 , F01N2900/0412 , F01N2900/1621 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A dosing control system for an exhaust system of an engine includes: a tank containing a reductant solution having urea; an injector operable to inject the reductant solution into an exhaust flow upstream of an SCR apparatus; first and second NOx sensors disposed to sense NOx emissions in the exhaust flow upstream and downstream, respectively, of the SCR apparatus; and a control module. The control module is disposed in signal communication with the first and second NOx sensors and in operable communication with the injector, the control module being operable to set an original dosing level and decrease a dosing of the reductant solution injected by the injector based on a determination from signals received from the first and second NOx sensors that a reduction in a conversion efficiency of the SCR apparatus below a defined level of conversion efficiency has occurred.
摘要翻译： 用于发动机排气系统的计量控制系统包括：容纳含有尿素的还原剂溶液的罐; 注射器，其可操作以将还原剂溶液注入SCR装置上游的排气流中; 第一和第二NOx传感器设置成分别检测SCR设备的上游和下游的排气流中的NOx排放; 和控制模块。 控制模块被布置成与第一和第二NOx传感器信号通信并且与喷射器可操作地连通，所述控制模块可操作以基于确定来设置原始计量水平并减少由喷射器注入的还原剂溶液的计量 根据从第一和第二NOx传感器接收的信号，SCR设备的转换效率的降低已经发生在规定的转换效率水平之下。
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