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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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公开(公告)号：US09551249B2
公开(公告)日：2017-01-24
申请号：US14614055
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Davide Mercuri
IPC: F01N3/00 , F01N3/08 , F01N13/00 , B01D46/00 , F01N9/00 , F01N11/00 , F02B37/00 , G05B15/02 , F01N3/021
CPC classification number: F01N3/0821 , B01D46/0057 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N9/00 , F01N9/002 , F01N9/005 , F01N11/007 , F01N13/009 , F01N2560/025 , F01N2560/06 , F01N2900/1404 , F01N2900/1614 , F02B37/00 , G05B15/02 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system of an internal combustion engine is disclosed. The aftertreatment system includes in a sequence along the exhaust pipe, a lean NOx trap and a particulate filter. An air/fuel ratio sensor is located upstream of the lean NOx trap and downstream of the turbine outlet to determine the air/fuel ratio during a regeneration process (DeNOx) in the lean NOx trap. A NOx sensor is located downstream of the lean NOx trap or downstream of the particulate filter, to determine NOx in the exhaust pipe. A turbine temperature is determined in accordance with a first means, and a temperature during a desulphation process (DeSOx) in the lean NOx trap is determined in accordance with a second means. At least one of the first and second means for determining a temperature may be a temperature sensor.
Abstract translation: 公开了一种内燃机的后处理系统。 后处理系统沿着排气管的顺序包括贫NOx捕集器和微粒过滤器。 空气/燃料比传感器位于贫NOx捕集器的上游并且在涡轮机出口的下游，以确定贫NOx捕集器中的再生过程（DeNOx）期间的空气/燃料比。 NOx传感器位于贫NOx捕集器的下游或颗粒过滤器的下游，以确定排气管中的NOx。 根据第一装置确定涡轮机温度，并且根据第二装置确定贫NOx捕集器中的脱硫过程（DeSOx）期间的温度。 用于确定温度的第一和第二装置中的至少一个可以是温度传感器。
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公开(公告)号：US09677451B2
公开(公告)日：2017-06-13
申请号：US14792035
申请日：2015-07-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alberto Giordano , Roberto Argolini , Cristian Taibi
CPC classification number: F01N11/007 , F01N3/0814 , F01N3/0842 , F01N9/002 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2560/025 , F01N2900/0418 , F01N2900/1402 , F01N2900/1614 , F01N2900/1621 , Y02T10/24 , Y02T10/47
Abstract: An electronic control module for operating an internal combustion engine is disclosed. The electronic control module is configured to monitor a first air-fuel equivalence ratio of engine exhaust gases upstream of a NOx trap, and to activate a diagnostic routine for the NOx trap when the first air-fuel equivalence ratio is smaller than one. The diagnostic routine enables the electronic control module to monitor a second air-fuel equivalence ratio of engine exhaust gases downstream of the NOx trap, to use the first and second air-fuel equivalence ratios to calculate an index that is representative of the conversion efficiency of the NOx trap, and to identify a failure of the NOx trap when the efficiency index is lower than a predetermined threshold value.
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Patent Agency Ranking
公开(公告)号：US09689290B2
公开(公告)日：2017-06-27
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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公开(公告)号：US09567891B2
公开(公告)日：2017-02-14
申请号：US14744819
申请日：2015-06-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Giovanni Montinaro , Alberto Giordano
CPC classification number: F01N9/002 , F01N3/0814 , F01N3/0842 , F01N9/00 , F01N11/00 , F01N11/007 , F01N2550/04 , F01N2560/025 , F01N2900/0414 , F01N2900/1402 , F02D41/0275 , F02D41/028 , F02D41/1401 , F02D41/1441 , F02D41/1445 , F02D41/1454 , F02D2041/1432 , Y02T10/47
Abstract: A method is disclosed for controlling a concentration of oxygen that is measured by an oxygen sensor of an after-treatment system of an internal combustion engine when a regeneration of an after-treatment device is required. The method may be a computer-implement method. An oxygen sensor target value is lowered in a stepped phase as a function of an exhaust gas flow speed as the exhaust gas passes through the after-treatment system. The oxygen sensor target value is lowered evenly as a function of the exhaust gas flow speed and by a filter phase when a measured air/fuel ratio value is less than or equal to an AFR threshold value and until the oxygen sensor target value is equal to an oxygen sensor final target value. The oxygen concentration is controlled by applying the oxygen sensor target value.
Abstract translation: 公开了一种用于控制当需要后处理装置的再生时由内燃机的后处理系统的氧传感器测量的氧浓度的方法。 该方法可以是计算机实现的方法。 随着废气通过后处理系统，氧传感器目标值随着废气流速的变化而在阶梯相中降低。 当测量的空气/燃料比值小于或等于AFR阈值时，氧传感器目标值作为废气流速的函数和滤波器相位均匀地降低，并且直到氧传感器目标值等于 氧传感器的最终目标值。 通过施加氧传感器目标值来控制氧浓度。
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6.发明授权公开(公告)号：US09551258B2
公开(公告)日：2017-01-24
申请号：US14656176
申请日：2015-03-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Giovanni Montinaro , Lorenzo Pataccia , Davide Donna , Thomas Johnen
CPC classification number: F01N9/002 , F01N3/023 , F01N3/0232 , F01N3/0233 , F01N3/0842 , F01N9/00 , F01N2900/12 , F02D41/027 , F02D41/1406 , F02D2200/0625 , F02D2200/606 , F02D2200/701 , Y02T10/24 , Y02T10/47
Abstract: A control apparatus is disclosed for optimizing the regeneration of an aftertreatment device located in an exhaust pipe of an internal combustion engine of a vehicle. The control apparatus includes an Electronic Control Unit configured to collect data from a GPS device associated to the vehicle, determine a time period for starting a regeneration of the aftertreatment device on the basis of data collected by the GPS device, and initiate the a regeneration of the aftertreatment device within the time period.
Abstract translation: 公开了一种用于优化位于车辆内燃机的排气管中的后处理装置的再生的控制装置。 控制装置包括：电子控制单元，被配置为从与车辆相关联的GPS装置收集数据，基于GPS装置收集的数据确定开始后处理装置的再生的时间段，并且开始再生 后处理装置。
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7.发明授权公开(公告)号：US09212613B2
公开(公告)日：2015-12-15
申请号：US14196915
申请日：2014-03-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Giuseppe Schiavone , Angela Vitiello
CPC classification number: F02D41/0245 , F01N9/002 , F01N2560/06 , F01N2900/1402 , F01N2900/1602 , F02D41/029 , F02D41/1445 , F02D41/1446 , F02D41/405 , F02D2041/1409 , F02D2041/1422 , Y02T10/26 , Y02T10/44
Abstract: A method of controlling an exhaust gas temperature at a particulate filter inlet is disclosed. The particulate filter is located in an exhaust system of an internal combustion engine. The method of controlling exhaust gas temperature at the particulate filter inlet includes a late injection, whose quantity is estimated as function of an exhaust gas volumetric flowrate.
Abstract translation: 公开了一种控制微粒过滤器入口处的排气温度的方法。 微粒过滤器位于内燃机的排气系统中。 控制微粒过滤器入口处排气温度的方法包括后期喷射，其量被估计为废气体积流量的函数。
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公开(公告)号：US20150218988A1
公开(公告)日：2015-08-06
申请号：US14614055
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Davide Mercuri
CPC classification number: F01N3/0821 , B01D46/0057 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N9/00 , F01N9/002 , F01N9/005 , F01N11/007 , F01N13/009 , F01N2560/025 , F01N2560/06 , F01N2900/1404 , F01N2900/1614 , F02B37/00 , G05B15/02 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system of an internal combustion engine is disclosed. The aftertreatment system includes in a sequence along the exhaust pipe, a lean NOx trap and a particulate filter. An air/fuel ratio sensor is located upstream of the lean NOx trap and downstream of the turbine outlet to determine the air/fuel ratio during a regeneration process (DeNOx) in the lean NOx trap. A NOx sensor is located downstream of the lean NOx trap or downstream of the particulate filter, to determine NOx in the exhaust pipe. A turbine temperature is determined in accordance with a first means, and a temperature during a desulphation process (DeSOx) in the lean NOx trap is determined in accordance with a second means. At least one of the first and second means for determining a temperature may be a temperature sensor.
Abstract translation: 公开了一种内燃机的后处理系统。 后处理系统沿着排气管的顺序包括贫NOx捕集器和微粒过滤器。 空气/燃料比传感器位于贫NOx捕集器的上游并且在涡轮机出口的下游，以确定贫NOx捕集器中的再生过程（DeNOx）期间的空气/燃料比。 NOx传感器位于贫NOx捕集器的下游或颗粒过滤器的下游，以确定排气管中的NOx。 根据第一装置确定涡轮机温度，并且根据第二装置确定贫NOx捕集器中的脱硫过程（DeSOx）期间的温度。 用于确定温度的第一和第二装置中的至少一个可以是温度传感器。
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