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1.发明申请VEHICLE AND A METHOD OF UPDATING EFFICIENCY OF A SELECTIVE CATALYTIC REDUCTION FILTER OF AN EXHAUST TREATMENT SYSTEM OF THE VEHICLE 有权车辆和车辆排气处理系统的选择性催化还原过滤器的效率更新方法公开(公告)号：US20150047328A1
公开(公告)日：2015-02-19
申请号：US13967737
申请日：2013-08-15
Applicant: GM Global Technology Operations LLC
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。
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公开(公告)号：US09689331B1
公开(公告)日：2017-06-27
申请号：US15079625
申请日：2016-03-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jean-Yves Lavallee , Joshua Clifford Bedford , Giuseppe Mazzara Bologna , Charles E. Solbrig
CPC classification number: F02D41/0255 , F01N3/103 , F01N3/2066 , F01N2430/06 , F01N2560/06 , F02D41/0245 , F02D41/025 , F02D41/1441 , F02D41/1446 , F02D41/402 , F02D41/405 , Y02T10/24 , Y02T10/26 , Y02T10/44
Abstract: An internal combustion engine is coupled to an oxidation catalyst disposed upstream of a second catalytic device. A controller includes an instruction set executable to detect a cold start engine starting event, monitor first and second temperature sensors, control each of the fuel injectors to execute a first set of fuel injection events for each cylinder event in response to an output torque request, and execute a second set of fuel injection events for each cylinder event after cylinder top-dead-center. The second set of fuel injection events includes a final injection event, and a duration of the final injection event is determined based upon the first and second temperatures.
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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
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。
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4.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
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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公开(公告)号：US20150068197A1
公开(公告)日：2015-03-12
申请号：US14022973
申请日：2013-09-10
Applicant: GM Global Technology Operations LLC
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。
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Patent Agency Ranking
公开(公告)号：US09771851B2
公开(公告)日：2017-09-26
申请号：US15041687
申请日：2016-02-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Shifang Li , Giuseppe Mazzara Bologna , Joshua Clifford Bedford
CPC classification number: F01N9/005 , F01N3/023 , F01N3/035 , F01N3/208 , F01N9/002 , F01N13/0093 , F01N2610/02 , F01N2900/1404 , F01N2900/1411 , F01N2900/1622 , F01N2900/1812 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: An internal combustion engine fluidly coupled to an exhaust aftertreatment system includes a particulate filter device, a first selective catalytic reduction device disposed upstream relative to a second selective catalytic reduction device, and an injection system disposed to inject a reductant into the exhaust gas feedstream upstream relative to the first selective catalytic reduction device. A method for controlling the internal combustion engine includes monitoring engine operation, and determining an amount of particulate matter stored on the particulate filter based thereon. An amount of reductant stored on the second selective catalytic reduction device and operating conditions associated with the exhaust aftertreatment system are also determined. A process to regenerate the particulate filter is executed only when the amount of reductant stored on the second selective catalytic reduction device is greater than a minimum threshold and the operating conditions are conducive to regenerating of the particulate filter.
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公开(公告)号：US20170234199A1
公开(公告)日：2017-08-17
申请号：US15041687
申请日：2016-02-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Shifang Li , Giuseppe Mazzara Bologna , Joshua Clifford Bedford
CPC classification number: F01N9/005 , F01N3/023 , F01N3/035 , F01N3/208 , F01N9/002 , F01N13/0093 , F01N2610/02 , F01N2900/1404 , F01N2900/1411 , F01N2900/1622 , F01N2900/1812 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: An internal combustion engine fluidly coupled to an exhaust aftertreatment system includes a particulate filter device, a first selective catalytic reduction device disposed upstream relative to a second selective catalytic reduction device, and an injection system disposed to inject a reductant into the exhaust gas feedstream upstream relative to the first selective catalytic reduction device. A method for controlling the internal combustion engine includes monitoring engine operation, and determining an amount of particulate matter stored on the particulate filter based thereon. An amount of reductant stored on the second selective catalytic reduction device and operating conditions associated with the exhaust aftertreatment system are also determined. A process to regenerate the particulate filter is executed only when the amount of reductant stored on the second selective catalytic reduction device is greater than a minimum threshold and the operating conditions are conducive to regenerating of the particulate filter.
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公开(公告)号：US20170152778A1
公开(公告)日：2017-06-01
申请号：US14955629
申请日：2015-12-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianwen Li , Luciano Nunziato Di Perna , Rahul Mital , Roberto Argolini , Joshua Clifford Bedford
CPC classification number: F01N3/0231 , B01F3/04049 , B01F5/0451 , B01F5/0614 , B01F5/0618 , B01F2005/0637 , F01N1/08 , F01N1/083 , F01N1/086 , F01N3/021 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/103 , F01N3/206 , F01N3/2066 , F01N3/2892 , F01N13/009 , F01N2240/20 , F01N2340/06 , F01N2610/02 , Y02A50/2325 , Y02T10/24
Abstract: An after-treatment (AT) system for a flow of exhaust gas of an internal combustion engine includes a first AT device and a second AT device in fluid communication with and positioned in the exhaust gas flow downstream of the first AT device. The AT system also includes an exhaust passage configured to carry the exhaust gas flow from the first AT device to the second AT device. The AT system additionally includes an injector configured to introduce a reductant into the exhaust passage. The second AT device includes an inlet cone having a volute defining a spiral primary path for the exhaust gas flow into the second AT device and configured to generate a swirling motion of and turbulence in the exhaust gas flow. A vehicle employing the AT system is also disclosed.
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9.发明申请EXHAUST GAS TREATMENT SYSTEM WITH EMISSION CONTROL DURING FILTER REGENERATION 审中-公开在过滤器再生过程中具有排放控制的排气处理系统公开(公告)号：US20140352279A1
公开(公告)日：2014-12-04
申请号：US13906940
申请日：2013-05-31
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Eugene V. Gonze , Michael J. Paratore, JR. , Joshua Clifford Bedford
IPC: F01N3/021
CPC classification number: F01N3/021 , F01N3/035 , F01N3/2046 , F01N3/208 , F01N9/002 , F01N13/0093 , F01N2240/02 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2900/1404 , F01N2900/1406 , Y02A50/2325 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: An exhaust gas treatment system for an engine includes an exhaust gas inlet tube configured to receive an exhaust gas from the engine. A particulate filter, a heat exchange system and first and second selective catalytic reduction (SCR) devices are in fluid communication with the exhaust gas inlet tube. The particulate filter is configured to undergo thermal regeneration when the exhaust gas in the particulate filter is heated above a regeneration temperature. The controller is configured to control a temperature difference, between a present temperature of the second SCR device and a predefined optimal second SCR temperature, to be within a predefined threshold during the thermal regeneration of the particulate filter. The controller may be configured to direct an injector to inject a reductant into the first SCR device when the temperature difference is below the predefined threshold, thereby controlling a NOx emission in the exhaust gas.
Abstract translation: 用于发动机的废气处理系统包括被配置为从发动机接收废气的排气入口管。 微粒过滤器，热交换系统和第一和第二选择性催化还原（SCR）装置与排气入口管流体连通。 微粒过滤器构造成当微粒过滤器中的废气被加热到再生温度以上时进行热再生。 所述控制器被配置为在所述微粒过滤器的热再生期间将所述第二SCR装置的当前温度与预定的最佳第二SCR温度之间的温差控制在预定阈值内。 控制器可以被配置为当温度差低于预定阈值时引导注射器将还原剂注入到第一SCR装置中，从而控制废气中的NOx排放。
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公开(公告)号：US09976464B1
公开(公告)日：2018-05-22
申请号：US15346225
申请日：2016-11-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Claudio Ciaravino , Joshua Clifford Bedford , Andrea Arnone
CPC classification number: F01N3/2066 , F01N3/021 , F01N3/0842 , F01N3/103 , F01N3/2892 , F01N11/007 , F01N13/008 , F01N13/0093 , F01N2240/20 , F01N2560/02 , F01N2610/02 , F01N2610/1453
Abstract: An after-treatment (AT) system for an exhaust gas flow from an internal combustion engine includes first and second AT devices positioned in the exhaust gas flow. The AT system also includes an exhaust passage for carrying the flow of exhaust gas from the first AT device to the second AT device. The AT system additionally includes an injector configured to generate a reductant spray into the exhaust passage and a sensor positioned proximate the injector for detecting a concentration of a pollutant in the exhaust gas flow downstream of the first AT device. The AT system furthermore includes a deflector arranged between the injector and the sensor and configured to guide the flow of exhaust gas to the sensor to thereby concentrate the flow of exhaust gas at the sensor and direct the reductant spray away from the sensor to thereby minimize detection of the reductant by the sensor.
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