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31.发明申请公开(公告)号：US20190178187A1
公开(公告)日：2019-06-13
申请号：US15838860
申请日：2017-12-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael A. Smith , Sarah Funk , David E. Edwards , Min Sun , Gongshin Qi
Abstract: An emissions control system for treating exhaust gas containing NOx emissions from an internal combustion engine comprises a selective catalytic reduction (SCR) device that stores reductant that reacts with the NOx emissions, a reductant supply system configured to inject the reductant according to a reductant storage model; NOx module(s) configured to generate an NOx concentration signal indicating an NOx concentration, temperature module(s) configured to generate a temperature signal indicating an SCR temperature of the SCR device, and a control module operably connected to the reductant supply system, the NOx module, and the temperature module. The control module is configured to determine an amount of the reductant that is parasitically oxidized based on the NOx concentration signal and the temperature signal, and to determine a correction factor based on the amount of parasitically oxidized reductant to modify the reductant storage model.
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公开(公告)号：US09927780B2
公开(公告)日：2018-03-27
申请号：US14964726
申请日：2015-12-10
Applicant: GM Global Technology Operations LLC
Inventor： Min Sun , Shifang Li , Giuseppe Mazzara Bologna , Francesco Cianflone , Paolo Nalbone
CPC classification number: G05B13/026 , F02D41/1406 , F02D41/1462 , F02D41/1467 , F02D2041/1412 , F02D2041/1433 , G05B13/048 , G06N7/005
Abstract: A system includes a target generating module, a model predictive control (MPC) module, and an actuator module. The target generating module generates a target value for an actuator of an engine. The MPC module generates a set of possible adjustments to the target value and predicts an operating parameter for the set of possible adjustments. The predicted operating parameter includes an emission level and/or an operating parameter of an exhaust system. The MPC module determines a cost for the set of possible adjustments and selects the set of possible adjustments from multiple sets of possible adjustments based on the cost. The MPC module determines whether the predicted operating parameter for the selected set satisfies a constraint and adjusts the target value using the possible adjustments of the selected set when the predicted operating parameter satisfies the constraint. The actuator module controls the actuator based on the target value as adjusted.
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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：US09709543B2
公开(公告)日：2017-07-18
申请号：US14705440
申请日：2015-05-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Shifang Li
CPC classification number: G01N33/0037 , F01N3/2066 , G01M15/102 , Y02A50/245 , Y02T10/146
Abstract: An internal combustion engine is described in conjunction with a method for dynamically determining a mass flow rate of nitrogen oxides (NOx) for its exhaust gas feedstream. The method includes determining a present engine operating point and determining a reference NOx content for a reference engine operating point. A combustion chemical reaction rate is determined based upon the present engine operating point and the reference engine operating point. A NOx content in the exhaust gas feedstream is dynamically determined during operation of the internal combustion engine based upon the reference NOx content, the combustion chemical reaction rate and a combustion mixing rate constant.
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Patent Agency Ranking
36.发明申请METHOD AND APPARATUS FOR DETERMINING NOx CONTENT IN AN EXHAUST GAS FEEDSTREAM OF AN INTERNAL COMBUSTION ENGINE 有权用于确定内燃机排气烟囱内的NOx含量的方法和装置公开(公告)号：US20160327534A1
公开(公告)日：2016-11-10
申请号：US14705440
申请日：2015-05-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Shifang Li
CPC classification number: G01N33/0037 , F01N3/2066 , G01M15/102 , Y02A50/245 , Y02T10/146
Abstract: An internal combustion engine is described in conjunction with a method for dynamically determining a mass flow rate of nitrogen oxides (NOx) for its exhaust gas feedstream. The method includes determining a present engine operating point and determining a reference NOx content for a reference engine operating point. A combustion chemical reaction rate is determined based upon the present engine operating point and the reference engine operating point. A NOx content in the exhaust gas feedstream is dynamically determined during operation of the internal combustion engine based upon the reference NOx content, the combustion chemical reaction rate and a combustion mixing rate constant.
Abstract translation: 结合用于动态地确定其废气进料流的氮氧化物（NOx）的质量流量的方法来描述内燃机。 该方法包括确定当前的发动机工作点并确定参考发动机工作点的参考NOx含量。 基于目前的发动机工作点和参考发动机工作点确定燃烧化学反应速率。 基于参考NOx含量，燃烧化学反应速率和燃烧混合速率常数，在内燃机的运行期间动态地确定废气进料流中的NOx含量。
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37.发明申请SYSTEM AND METHOD FOR CONTROLLING DOSING IN SELECTIVE CATALYTIC REDUCTION CATALYST 有权用于控制选择性催化还原催化剂剂量的系统和方法公开(公告)号：US20150252709A1
公开(公告)日：2015-09-10
申请号：US14197954
申请日：2014-03-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Justin Adam Shetney , Amr Radwan
IPC: F01N3/20
CPC classification number: F01N3/208 , F01N13/0093 , Y02T10/24
Abstract: An engine assembly includes an exhaust system having a first SCR catalyst, a second SCR catalyst in fluid communication with the first SCR catalyst, and an injector configured to inject reductant into the exhaust system. A controller is configured to estimate a first amount of ammonia stored in the first SCR catalyst and to estimate a second amount of ammonia stored in the second SCR catalyst. The controller is operatively connected to the injector and configured to control the amount of reductant injected by the injector. The controller controls the injector based on the first amount, the second amount, and a temperature of a substrate disposed in the second SCR catalyst.
Abstract translation: 发动机组件包括具有第一SCR催化剂，与第一SCR催化剂流体连通的第二SCR催化剂的排气系统和被配置为将还原剂注入到排气系统中的喷射器。 控制器被配置为估计存储在第一SCR催化剂中的第一量的氨并估计存储在第二SCR催化剂中的第二量的氨。 控制器可操作地连接到喷射器并且被配置为控制由喷射器喷射的还原剂的量。 控制器基于第一量，第二量和设置在第二SCR催化剂中的衬底的温度来控制喷射器。
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公开(公告)号：US20150209729A1
公开(公告)日：2015-07-30
申请号：US14163120
申请日：2014-01-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Min Sun , Michelangelo Ardanese , Stefano Cassani , Andrea Dutto
IPC: B01D53/94
CPC classification number: B01D53/9495 , B01D53/9459 , F01N3/0814 , F01N3/2006 , F01N3/208 , F01N9/002 , F01N9/005 , F01N2610/03 , F01N2900/0601 , F01N2900/1402 , F01N2900/1618 , F01N2900/1621 , F01N2900/1622 , Y02T10/47
Abstract: A method of estimating hydrocarbon storage in a catalytic device of an exhaust gas treatment system includes calculating an amount of hydrocarbons absorbed in the catalytic device per unit volume of exhaust gas over a period of time, calculating an amount of hydrocarbons desorbed in the catalytic device per unit volume of exhaust gas over the period of time, and calculating an amount of hydrocarbons oxidized in the catalytic device per unit volume of exhaust gas over the period of time. The amount of hydrocarbons oxidized in the catalytic device and the amount of hydrocarbons desorbed in the catalytic device are subtracted from the amount of hydrocarbons absorbed in the catalytic device to determine the amount of hydrocarbons stored in the catalytic device.
Abstract translation: 一种估计废气处理系统的催化装置中的烃储存的方法包括计算在一段时间内每单位体积废气中催化装置中吸收的烃的量，计算每个催化装置中解吸的烃的量 在一段时间内排气的单位体积，并计算在一段时间内每单位体积排气中的催化装置中氧化的烃的量。 在催化装置中氧化的烃的量和在催化装置中解吸的烃的量从在催化装置中吸收的烃的量减去以确定存储在催化装置中的烃的量。
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公开(公告)号：US09046025B2
公开(公告)日：2015-06-02
申请号：US13912870
申请日：2013-06-07
Applicant: GM Global Technology Operations LLC
Inventor： Raffaello Ardanese , Min Sun , Justin Adam Shetney , Shouxian Ren , Christopher P. Musienko
CPC classification number: F01N11/00 , F01N3/0842 , F01N3/2066 , F01N3/208 , F01N2560/026 , F01N2610/02 , F01N2900/1614 , F01N2900/1621 , Y02T10/24 , Y02T10/47
Abstract: A selective catalytic reduction (SCR) device monitoring system includes an engine out NOx monitoring module, an SCR out NOx monitoring module configured and disposed to monitor NOx released from the SCR device, and a NOx storage model module operatively connected to the engine out NOx module and the SCR out NOx monitoring module. The NOx storage model module is configured and disposed to determine an amount of NOx stored in the SCR device. A consumed ammonia correction model module is operatively coupled to the NOx storage model module and configured and disposed to calculate a corrected consumed ammonia correction factor.
Abstract translation: 选择性催化还原（SCR）装置监测系统包括发动机排出NOx监测模块，SCR排出NOx监测模块，其配置和设置为监测从SCR装置释放的NOx;以及NOx存储模型模块，其可操作地连接到发动机出口NOx模块 和SCR out NOx监测模块。 NOx存储模型模块被配置和设置以确定存储在SCR装置中的NOx的量。 消耗的氨校正模型模块可操作地耦合到NOx存储模型模块，并且被配置和设置为计算经校正的消耗氨校正因子。
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40.发明授权公开(公告)号：US08935953B2
公开(公告)日：2015-01-20
申请号：US13894758
申请日：2013-05-15
Applicant: GM Global Technology Operations LLC
Inventor： Min Sun , Michelangelo Ardanese , Amanpal S. Grewal , Paul Jasinkiewicz , Giuseppe Schiavone
CPC classification number: F01N11/002 , F01N9/002 , F01N2900/0412 , F01N2900/0418 , F01N2900/08 , F01N2900/1406 , F01N2900/1606 , F02D41/029 , F02D41/1448 , F02D2200/0812
Abstract: A method of estimating a total amount of soot in a diesel particulate filter includes monitoring a pressure differential across the diesel particulate filter; monitoring an engine speed and an engine load from an engine in fluid communication with the diesel particulate filter; determining a first soot mass estimate from the monitored pressure differential, the first soot mass estimate having an associated confidence indicator based on the monitored engine speed and engine load; determining a second soot mass estimate from the monitored engine speed and engine load; and outputting the first soot mass estimate if the confidence indicator is above a predetermined threshold, and outputting the second soot mass estimate if the confidence indicator is below the predetermined threshold.
Abstract translation: 估计柴油微粒过滤器中烟尘总量的方法包括监测柴油机微粒过滤器两端的压力差; 从与柴油机微粒过滤器流体连通的发动机监测发动机转速和发动机负荷; 根据所监测的压差确定第一烟灰质量估计，所述第一烟灰质量估计具有基于所监测的发动机速度和发动机负荷的相关联的置信指示器; 从所监测的发动机转速和发动机负荷确定第二烟灰质量估计; 以及如果所述置信指标高于预定阈值则输出所述第一烟灰质量估计，以及如果所述置信指标低于所述预定阈值则输出所述第二烟灰质量估计。
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