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    Vehicle and a method of updating efficiency of a selective catalytic reduction filter of an exhaust treatment system of the vehicle
    1.
    发明授权
    Vehicle and a method of updating efficiency of a selective catalytic reduction filter of an exhaust treatment system of the vehicle 有权
    车辆和更新车辆的排气处理系统的选择性催化还原过滤器的效率的方法

    公开(公告)号：US09291084B2

    公开(公告)日：2016-03-22

    申请号：US13967737

    申请日：2013-08-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Thomas Larose, Jr. ,  Christopher C. Swoish ,  Christopher Whitt ,  Joshua Clifford Bedford

    IPC: F01N3/00 ,  F01N11/00 ,  F01N3/035 ,  F01N3/20

    CPC classification number: F01N11/00 ,  F01N3/035 ,  F01N3/208 ,  F01N11/002 ,  F01N2610/02 ,  F01N2900/1606 ,  F01N2900/1621 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A vehicle and a method of updating efficiency of a selective catalytic reduction filter (SCRF) of an exhaust treatment system of the vehicle are disclosed. The method includes obtaining an initial calculated efficiency of the SCRF, via a controller, regarding one of a NOx conversion, a reductant absorption, a reductant desorption and a reductant oxidation. The method also includes determining a soot mass estimate in the SCRF representative of an amount of soot collected inside the SCRF and determining a soot correction factor from the soot mass estimate. The method further includes calculating, via the controller, an updated efficiency value of the SCRF by multiplying the soot correction factor and the initial calculated efficiency to update efficiency of the SCRF.

    Abstract translation: 公开了一种车辆和更新车辆排气处理系统的选择性催化还原过滤器（SCRF）的效率的方法。 该方法包括通过控制器获得关于NOx转化，还原剂吸收，还原剂解吸和还原剂氧化之一的SCRF的初始计算效率。 该方法还包括确定在SCRF中代表在SCRF内部收集的烟灰量的烟灰质量估计，并根据烟灰质量估计确定烟灰校正因子。 该方法还包括通过将烟灰校正因子和初始计算效率乘以SCRF的更新效率，经由控制器计算SCRF的更新效率值。

    Enhanced CRT enablement based on soot mass stored in particulate filter
    3.
    发明授权
    Enhanced CRT enablement based on soot mass stored in particulate filter 有权
    基于储存在微粒过滤器中的烟灰质量的增强型CRT使能

    公开(公告)号：US09206719B2

    公开(公告)日：2015-12-08

    申请号：US14022871

    申请日：2013-09-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Christopher C. Swoish ,  Douglas Christopher Sarsen ,  Christopher Whitt ,  Thomas Larose, Jr.

    IPC: F01N3/00 ,  F01N3/023 ,  F01N3/10 ,  F01N3/20 ,  F02D41/02 ,  F01N9/00 ,  F01N13/00 ,  F02D41/14

    CPC classification number: F01N3/023 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2560/026 ,  F01N2900/1402 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1461 ,  F02D41/1467 ,  F02D2200/0812 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: An exhaust treatment system to treat exhaust gas includes a particulate filter and a pressure sensor. The particulate filter is configured to trap soot contained in exhaust gas. The pressure sensor is configured to output a pressure signal indicative of a pressure differential of the particulate filter. The exhaust treatment system further includes a soot mass module configured to determine a soot mass. The soot mass is indicative of an amount of soot stored in the particulate filter based on the pressure differential and a soot model stored in a memory device. The exhaust treatment system further includes a continuously regenerating trap (CRT) compensation module configured to generate a variable CRT threshold. The CRT compensation module selectively outputs a CRT compensation value that modifies the soot model based on comparison between the NOx flow rate and the soot mass-based variable CRT threshold.

    Abstract translation: 用于处理废气的废气处理系统包括微粒过滤器和压力传感器。 微粒过滤器被配置成捕集废气中所含的烟灰。 压力传感器被配置为输出表示微粒过滤器的压力差的压力信号。 废气处理系统还包括配置成确定烟灰质量的烟灰质量模块。 烟灰质量基于压差和存储在存储装置中的烟尘模型来指示存储在微粒过滤器中的烟灰量。 排气处理系统还包括被配置为产生可变CRT阈值的连续再生陷阱（CRT）补偿模块。 CRT补偿模块基于NOx流量和基于烟灰质量的可变CRT阈值之间的比较选择性地输出修正烟灰模型的CRT补偿值。

    SELECTIVE CATALYST REDUCTION FILTER WASHCOAT THICKNESS AMMONIA COMPENSATION SYSTEM
    5.
    发明申请
    SELECTIVE CATALYST REDUCTION FILTER WASHCOAT THICKNESS AMMONIA COMPENSATION SYSTEM 有权
    选择性催化剂还原过滤器WASHCOAT THICKNESS AMMONIA COMPRATION SYSTEM

    公开(公告)号：US20150113951A1

    公开(公告)日：2015-04-30

    申请号：US14066861

    申请日：2013-10-30

    Applicant: GM Global Technology Operations LLC

    Inventor： Thomas Larose, Jr. ,  Christopher C. Swoish ,  Christopher Whitt ,  Justin Adam Shetney

    IPC: F01N3/18

    CPC classification number: F01N3/18 ,  F01N3/035 ,  F01N3/208 ,  F01N11/002 ,  F01N11/005 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2560/08 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

    Abstract: An exhaust treatment system includes a selective catalyst reduction filter (SCRF) device, a reductant delivery system, and a reductant storage module. The SCRF device includes a filter portion having a washcoat disposed thereon that defines a washcoat thickness (WCT). The reductant delivery system is configured to inject a reductant that reacts with the washcoat. The reductant storage module is in electrical communication with the reductant delivery system to determine a reductant setpoint that controls the amount of reductant injected from the reductant delivery system. The exhaust treatment system further includes a WCT compensation module configured to electrically communicate a WCT compensation value to the reductant storage module. The reductant storage module adjusts the setpoint according to the WCT compensation value such that the amount of ammonia that slips from the SCRF device is reduced as compared to the first setpoint.

    Abstract translation: 排气处理系统包括选择性催化剂还原过滤器（SCRF）装置，还原剂递送系统和还原剂储存模块。 SCRF装置包括其上设置有修补基面涂层厚度（WCT）的过滤器部分。 还原剂递送系统被配置为注入与修补基面涂层反应的还原剂。 还原剂存储模块与还原剂递送系统电连通以确定控制从还原剂递送系统注入的还原剂的量的还原剂设定点。 排气处理系统还包括被配置为将WCT补偿值电连接到还原剂存储模块的WCT补偿模块。 还原剂存储模块根据WCT补偿值来调整设定值，使得与第一设定点相比，从SCRF装置滑落的氨的量减少。

    Method and apparatus to control regeneration of a particulate filter
    8.
    发明授权
    Method and apparatus to control regeneration of a particulate filter 有权
    控制微粒过滤器再生的方法和装置

    公开(公告)号：US09441525B2

    公开(公告)日：2016-09-13

    申请号：US14701823

    申请日：2015-05-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Christopher C. Swoish ,  Douglas Christopher Sarsen ,  Christopher Whitt ,  Thomas Larose, Jr.

    IPC: F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N9/00 ,  F01N3/021 ,  F02D41/02 ,  F02D41/00

    CPC classification number: F01N9/002 ,  F01N3/021 ,  F01N9/005 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/14 ,  F02D41/0007 ,  F02D41/029 ,  F02D41/1467 ,  F02D2200/0812 ,  Y02T10/144 ,  Y02T10/47

    Abstract: An internal combustion engine is fluidly coupled to an exhaust aftertreatment system including a particulate filter. A method for operating the internal combustion engine includes determining an expected boost pressure of an intake air compressor system in response to an output torque request, determining a deviation between an actual boost pressure and the expected boost pressure, determining a engine-out soot generation rate correction based upon the deviation between the actual boost pressure and the expected boost pressure, adjusting a steady-state engine-out soot generation rate using the engine-out soot generation rate correction, time-integrating the adjusted steady-state engine-out soot generation rate, and commanding regeneration of the particulate filter when the time-integrated adjusted engine-out soot generation rate exceeds a predetermined threshold.

    Abstract translation: 内燃机流体耦合到包括微粒过滤器的排气后处理系统。 用于操作内燃机的方法包括响应于输出转矩请求确定进气压缩机系统的预期增压压力，确定实际增压压力和预期增压压力之间的偏差，确定发动机熄火烟灰发生率 基于实际增压压力和预期增压压力之间的偏差进行校正，使用发动机熄火烟灰产生速率校正来调节稳态发动机熄火烟灰产生速率，将调整后的稳态发动机熄火烟灰产生 速度，并且当时间一体化调节发动机熄灭烟灰产生速率超过预定阈值时，微粒过滤器的命令再生。

    Urea injection controller for a motorized system
    9.
    发明授权
    Urea injection controller for a motorized system 有权
    用于电动系统的尿素喷射控制器

    公开(公告)号：US09228467B2

    公开(公告)日：2016-01-05

    申请号：US14022973

    申请日：2013-09-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Christopher C. Swoish ,  Thomas Larose, Jr. ,  Christopher Whitt ,  Joshua Clifford Bedford

    IPC: F01N3/00 ,  F01N3/20 ,  B01D53/94 ,  F01N3/035

    CPC classification number: F01N3/208 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2067 ,  F01N3/035 ,  F01N2610/02 ,  F01N2900/1602 ,  Y02T10/24

    Abstract: A urea injection controller for a motorized system includes a passive regeneration model configured and disposed to calculate an amount of NOx conversion resulting from an interaction between exhaust gases and soot entrained in a selective catalyst reduction filter (SCRF) device, a replenishment mode trigger module configured to set an ammonia replenishment request based on the passive regeneration model, and a replenishment control module configured to selectively activate a urea injector to discharge a particular amount of urea based on the regeneration model.

    Abstract translation: 一种用于电动系统的尿素喷射控制器包括被动再生模型，该被动再生模型被配置和设置为计算由选择性催化剂还原过滤器（SCRF）装置中夹带的废气和烟灰之间的相互作用产生的NOx转化量，配置的补充模式触发模块 基于所述被动再生模型设定氨补充请求，以及补充控制模块，其配置为基于所述再生模型选择性地激活尿素喷射器以排出特定量的尿素。

    Method and system for adapting a clean filter correction map for a selective catalyst reduction filter
    10.
    发明授权
    Method and system for adapting a clean filter correction map for a selective catalyst reduction filter 有权
    适用于选择性催化还原过滤器的清洁过滤器校正图的方法和系统

    公开(公告)号：US09149801B2

    公开(公告)日：2015-10-06

    申请号：US13919040

    申请日：2013-06-17

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Christopher Whitt ,  Thomas Larose, Jr. ,  Christopher C. Swoish ,  Joshua Clifford Bedford

    IPC: B01D46/00 ,  B01J38/00 ,  B01J38/12 ,  B01D53/94

    CPC classification number: B01J38/00 ,  B01D53/94 ,  B01D53/9418 ,  B01D53/9477 ,  B01D53/9495 ,  B01D53/96 ,  B01D2251/206 ,  B01D2251/2067 ,  B01D2255/20723 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2258/012 ,  B01J38/12 ,  Y02A50/2325 ,  Y02T10/24

    Abstract: A system and method for adapting the clean filter correction map for a selective catalyst reduction filter SCRF of an exhaust gas aftertreatment system are provided. The system may be in fluid communication with an engine of a vehicle. The system may include a first pressure sensor and a second pressure. A differential pressure module is in communication with the first pressure sensor and the second pressure sensor and configured to generate a delta pressure signal corresponding to a pressure drop between the first pressure sensor and the second pressure sensor. The system may also include a controller configured to determine a number of completed regeneration events of the SCRF; compare the number of completed regeneration events to an evaluation element; and enable an adaptation module by executing one of a first control action, a second control action, and a third control action.

    Abstract translation: 本发明提供了一种用于排气后处理系统的选择性催化还原过滤器SCRF的清洁过滤器校正图的系统和方法。 系统可以与车辆的发动机流体连通。 该系统可以包括第一压力传感器和第二压力。 差压模块与第一压力传感器和第二压力传感器连通，并被配置为产生对应于第一压力传感器和第二压力传感器之间的压降的增量压力信号。 该系统还可以包括配置成确定SCRF的完成的再生事件的数量的控制器; 将完成的再生事件的数量与评估要素进行比较; 并且通过执行第一控制动作，第二控制动作和第三控制动作中的一个来启用适配模块。

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