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公开(公告)号：US09863344B2
公开(公告)日：2018-01-09
申请号：US14745868
申请日：2015-06-22
发明人： Dipankar Deb , Prashant Srinivasan , Medy Satria , Maruthi Narasinga Rao Devarakonda , Dhruval Bhatt
CPC分类号： F02D41/0077 , F02D21/08 , F02D41/0052 , F02D41/0072 , F02D41/1461 , F02D41/26 , F02D2021/083 , F02D2200/0406 , F02D2250/36 , Y02T10/47
摘要： A system includes an engine comprising an EGR valve that recirculates a portion of exhaust gas, a data repository that stores a first look up and one or more engine operational parameters, an engine control unit operationally coupled to the engine and the data repository, wherein the engine control unit is configured to: determine a desired EGR flow rate reference of the portion of the exhaust gas based on the one or more engine operational parameters and the first look up table, determine a current estimated EGR flow rate based on the one or more engine operational parameters, determine a designated corrected EGR flow rate reference based on the desired EGR flow rate reference and a delta EGR flow rate, determine EGR flow rate error, and determine a percentage opening of the EGR valve based at least on the EGR flow rate error.
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2.发明授权公开(公告)号：US09822727B2
公开(公告)日：2017-11-21
申请号：US14926969
申请日：2015-10-29
CPC分类号： F02D41/402 , F02D35/023 , F02D35/027 , F02D35/028 , F02D41/0025 , F02D41/0027 , F02D41/263 , F02D41/401 , Y02T10/44
摘要： Various methods and systems are provided for individually adjusting fueling to cylinders of an engine based on an output of a knock sensor coupled to each cylinder. In one embodiment, a method for a multi fuel engine comprises individually adjusting, for each cylinder of the engine, one or more of a gas flow rate of gaseous fuel, a diesel flow rate of diesel fuel, an injection or induction timing of gaseous fuel, or an injection timing of diesel fuel based on each of an output of an individual knock sensor for each cylinder, a knock threshold for current engine operating conditions, and a reference value of individual cylinder output.
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公开(公告)号：US09657678B2
公开(公告)日：2017-05-23
申请号：US14680934
申请日：2015-04-07
发明人： Pin Zeng , Prashant Srinivasan , Mark James Lemke
CPC分类号： F02D41/26 , F01N11/007 , F01N13/008 , F01N2340/00 , F01N2340/02 , F01N2560/021 , F01N2560/022 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2900/0416 , F01N2900/0601 , F02D41/0002 , F02D41/0295 , F02D41/14 , F02D41/1441 , F02D41/1452 , F02D41/1453 , F02D41/1454 , F02D41/146 , F02D41/1481 , F02D41/263 , F02D2041/1431 , F02D2041/1468 , F02D2200/0814 , Y02T10/42 , Y02T10/47
摘要： A system includes a controller that has a processor. The processor is configured to receive a first signal from a first sensor indicative of a first exhaust measurement, wherein the first sensor is disposed at a catalytic converter system inlet of a catalytic converter system. The processor is further configured to derive one or more of an estimated length, estimated volume, or estimated transport delay of an exhaust conduit based on the first signal, wherein a first end of the exhaust conduit is connected to an engine outlet of a engine, and a second end of the exhaust conduit is connected to the catalytic converter system inlet; and to apply the one or more of estimated length, estimated volume, or estimated transport delay of the exhaust conduit during control of the engine.
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公开(公告)号：US10001046B2
公开(公告)日：2018-06-19
申请号：US14942644
申请日：2015-11-16
CPC分类号： F01N11/00 , F01N3/0835 , F01N3/0842 , F01N3/0857 , F01N3/101 , F01N3/206 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2430/06 , F01N2550/02 , F01N2550/03 , F01N2560/021 , F01N2560/026 , F01N2560/06 , F01N2560/07 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/0412 , F01N2900/08 , F01N2900/1621 , F01N2900/1622 , F01N2900/1624 , F01N2900/1812 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： A system includes an exhaust treatment system configured to treat emissions from a combustion engine via a catalyst. The system includes a controller configured to obtain an operating parameter indicating catalyst performance. The controller is configured to determine a deterioration factor indicating deterioration of the catalyst based at least in part on the operating parameter. The controller is configured to determine an adaptation term configured to modify a reductant injection command for the combustion engine to account for the deterioration factor of the catalyst. The controller is configured to generate a signal indicating the adaptation term.
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公开(公告)号：US09605579B2
公开(公告)日：2017-03-28
申请号：US14569213
申请日：2014-12-12
发明人： Prashant Srinivasan , Maruthi Narasinga Rao Devarakonda , Jassin Marcel Fritz , Daniel George Norton , Sharath Sridhar Aramanekoppa , Medy Satria , William Collins Vining , Dipankar Deb
CPC分类号： F01N11/007 , F01N3/101 , F01N9/00 , F01N9/005 , F01N2550/02 , F01N2560/025 , F01N2900/0406 , F01N2900/1624 , F02C9/00 , F02D2041/1417 , F05D2260/821 , F05D2270/08 , F05D2270/082 , Y02T10/22 , Y02T10/47
摘要： A system includes a controller that has a processor configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement, wherein the first oxygen sensor is disposed upstream of a catalytic converter system; and to receive a second signal from a second oxygen sensor indicative of a second oxygen measurement, wherein the second oxygen sensor is disposed downstream of the catalytic converter system; and to execute a catalyst estimator system, wherein the catalyst estimator system is configured to derive an oxygen storage estimate based on the first signal, the second signal, and a catalytic converter model. The processor is configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model and the oxygen storage estimate.
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6.发明申请Systems and Methods for Controlling Air-to-Fuel Ratio Based on Catalytic Converter Performance 审中-公开基于催化转化器性能控制空燃比的系统和方法公开(公告)号：US20160169136A1
公开(公告)日：2016-06-16
申请号：US14569225
申请日：2014-12-12
发明人： Maruthi Narasinga Rao Devarakonda , Prashant Srinivasan , Medy Satria , Rohit Mahakali , Sharath Sridhar Aramanekoppa
CPC分类号： F02D41/0235 , F01N11/007 , F02D41/0295 , F02D41/1454 , F02D41/1477 , F02D41/22
摘要： A system includes a controller that has a processor. The processor is configured to receive a first signal from a first oxygen sensor indicative of a first oxygen measurement and a second signal from a second oxygen sensor indicative of a second oxygen measurement. The first oxygen sensor is disposed upstream of a catalytic converter system and the second oxygen sensor is disposed downstream of the catalytic converter system. The processor is also configured to derive a plurality of oxygen storage estimates based on the first signal, the second signal, and a catalytic converter model. Each of the plurality of oxygen storage estimates represents an oxygen storage estimate for a corresponding cell of a plurality of cells in the catalytic converter system. Further, the processor is configured to derive a system oxygen storage estimate for the catalytic converter system based on the plurality of oxygen storage estimates. The processor is also configured to derive a system oxygen storage setpoint for the catalytic converter system based on the catalytic converter model. The processor is then configured to compare the system oxygen storage estimate to the system oxygen storage setpoint and apply the comparison during control of a gas engine.
摘要翻译： 系统包括具有处理器的控制器。 处理器被配置为从第一氧传感器接收指示第一氧测量的第一信号和来自指示第二氧测量的第二氧传感器的第二信号。 第一氧传感器设置在催化转化器系统的上游，并且第二氧传感器设置在催化转化器系统的下游。 处理器还被配置为基于第一信号，第二信号和催化转化器模型导出多个氧气存储估计。 多个氧气存储估计值中的每一个代表催化转化器系统中的多个电池的相应电池的氧气储存估计值。 此外，处理器被配置为基于多个氧气存储估计值推导催化转化器系统的系统氧气储存估计。 处理器还被配置为基于催化转化器模型导出催化转化器系统的系统氧气存储设定点。 然后将处理器配置成将系统氧气存储估计与系统氧气存储设定值进行比较，并在气体发动机的控制期间应用比较。
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公开(公告)号：US20160160811A1
公开(公告)日：2016-06-09
申请号：US15045616
申请日：2016-02-17
发明人： Dipankar Deb , Manthram Sivasubramaniam , Prashant Srinivasan , Sharath Sridhar Aramanekoppa , Prem Kumar Patchaikani , Sachin Shivajirao Kulkarni , Sebastian Walter Freund , Jassin Marcel Fritz , Georgios Bikas , James Henry Yager , Shashi Kiran
CPC分类号： F02M26/49 , F02D9/04 , F02D41/005 , F02D41/0065 , F02D41/0082 , F02D41/1448 , F02D41/221 , F02D41/40 , F02M26/09 , F02M26/16 , F02M26/43 , F02M26/44 , F02M26/47 , Y02T10/47
摘要： Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.
摘要翻译： 提供了用于控制废气再循环（EGR）的系统和方法。 在一个示例中，发动机系统包括将排气歧管连接到发动机排气系统的第一EGR阀，将排气歧管连接到发动机进气系统的第二EGR阀和控制单元。 控制单元基于目标量选择性地调节第一EGR阀的位置，并且基于目标量和第一EGR阀的位置来调节第二EGR阀的位置。 响应于第一EGR阀的第一劣化条件，控制单元基于目标量并基于第一排气歧管的压力调节第二EGR阀的位置，并且响应于第一EGR阀的第二劣化条件 阀，基于目标量调节第二EGR阀的位置。
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公开(公告)号：US09719445B2
公开(公告)日：2017-08-01
申请号：US14823806
申请日：2015-08-11
IPC分类号： F02D41/14 , F02M35/10 , F02D41/18 , F02B63/04 , H02K7/18 , H02P9/04 , F02D19/02 , F02D23/00 , F02D41/00
CPC分类号： F02D41/1402 , F02B63/04 , F02D19/02 , F02D23/00 , F02D41/0027 , F02D41/144 , F02D41/182 , F02D2041/1416 , F02D2041/1417 , F02D2200/0402 , F02M35/1038 , F02M35/10386 , H02K7/1815 , H02P9/04 , Y02T10/32
摘要： In one embodiment, a method includes receiving, via a first sensor, a signal representative of at least one of a manifold pressure, a manifold temperature, or a manifold mass flow rate of a manifold. The method further includes deriving, via a manifold model and the first sensor signal, a gas concentration measurement at a first manifold section of the manifold. The method additionally includes applying the gas concentration measurement during operations of an engine, wherein the manifold is fluidly coupled to the engine.
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公开(公告)号：US20170045010A1
公开(公告)日：2017-02-16
申请号：US14823806
申请日：2015-08-11
CPC分类号： F02D41/1402 , F02B63/04 , F02D19/02 , F02D23/00 , F02D41/0027 , F02D41/144 , F02D41/182 , F02D2041/1416 , F02D2041/1417 , F02D2200/0402 , F02M35/1038 , F02M35/10386 , H02K7/1815 , H02P9/04 , Y02T10/32
摘要： In one embodiment, a method includes receiving, via a first sensor, a signal representative of at least one of a manifold pressure, a manifold temperature, or a manifold mass flow rate of a manifold. The method further includes deriving, via a manifold model and the first sensor signal, a gas concentration measurement at a first manifold section of the manifold. The method additionally includes applying the gas concentration measurement during operations of an engine, wherein the manifold is fluidly coupled to the engine.
摘要翻译： 在一个实施例中，一种方法包括经由第一传感器接收代表歧管压力，歧管温度或歧管的歧管质量流量中的至少一个的信号。 该方法还包括经由歧管模型和第一传感器信号导出在歧管的第一歧管部分处的气体浓度测量。 该方法还包括在发动机操作期间应用气体浓度测量，其中歧管流体地联接到发动机。
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公开(公告)号：US20160369723A1
公开(公告)日：2016-12-22
申请号：US14745868
申请日：2015-06-22
发明人： Dipankar Deb , Prashant Srinivasan , Medy Satria , Maruthi Narasinga Rao Devarakonda , Dhruval Bhatt
CPC分类号： F02D41/0077 , F02D21/08 , F02D41/0052 , F02D41/0072 , F02D41/1461 , F02D41/26 , F02D2021/083 , F02D2200/0406 , F02D2250/36 , Y02T10/47
摘要： A system includes an engine comprising an EGR valve that recirculates a portion of exhaust gas, a data repository that stores a first look up and one or more engine operational parameters, an engine control unit operationally coupled to the engine and the data repository, wherein the engine control unit is configured to: determine a desired EGR flow rate reference of the portion of the exhaust gas based on the one or more engine operational parameters and the first look up table, determine a current estimated EGR flow rate based on the one or more engine operational parameters, determine a designated corrected EGR flow rate reference based on the desired EGR flow rate reference and a delta EGR flow rate, determine EGR flow rate error, and determine a percentage opening of the EGR valve based at least on the EGR flow rate error.
摘要翻译： 一种系统包括：发动机，其包括再循环废气的一部分的EGR阀，存储第一查询的数据存储库和一个或多个发动机操作参数;可操作地耦合到所述引擎和所述数据存储库的引擎控制单元，其中， 发动机控制单元被配置为：基于所述一个或多个发动机操作参数和所述第一查询表来确定所述废气的所述部分的期望EGR流量参考，基于所述一个或多个发动机控制单元确定当前估计的EGR流量 发动机操作参数，基于期望的EGR流量参考值和ΔRR流量来确定指定的校正EGR流量参考值，确定EGR流量误差，并且至少基于EGR流量确定EGR阀的百分比开度 错误。
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