公开(公告)号：US08322129B2

公开(公告)日：2012-12-04

申请号：US11356363

申请日：2006-02-16

申请人： Thomas A. Dollmeyer ,  Jennifer W. Rumsey ,  Larry J. Brackney ,  B. Jerry Song ,  J. Steve Wills ,  John N. Chi ,  John M. Mulloy

发明人： Thomas A. Dollmeyer ,  Jennifer W. Rumsey ,  Larry J. Brackney ,  B. Jerry Song ,  J. Steve Wills ,  John N. Chi ,  John M. Mulloy

IPC分类号： F01N5/04

CPC分类号： F01N3/023 ,  F01N11/002 ,  F02D41/0007 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/1447 ,  Y02T10/144 ,  Y02T10/47

摘要： A method and system for controlling an exhaust temperature for an internal combustion engine is disclosed. The method and system include determining a range of acceptable charge flows within the internal combustion engine to meet a desired exhaust temperature. The method and system further include controlling the charge flows to fall within the range. Control strategies to utilize the charge flow as a lever to control turbine outlet temperature are disclosed. These strategies utilize the inversion of the cylinder outlet temperature virtual sensor as well as a new turbine outlet temperature virtual sensor to determine the charge flow required to achieve the desired turbine outlet temperature given the current turbine inlet and outlet pressure, SOI, charge pressure, charge temperature, fueling, and engine speed.

摘要翻译： 公开了一种用于控制内燃机排气温度的方法和系统。 该方法和系统包括确定内燃机内的可接受电荷流的范围以满足期望的排气温度。 该方法和系统还包括控制电荷流量落在该范围内。 公开了将充电流作为杠杆来控制涡轮出口温度的控制策略。 这些策略利用汽缸出口温度虚拟传感器的反转以及新的涡轮出口温度虚拟传感器来确定给定当前涡轮机入口和出口压力，SOI，充气压力，电荷，达到所需涡轮机出口温度所需的电荷流量 温度，加油和发动机转速。

公开(公告)号：US20120137678A1

公开(公告)日：2012-06-07

申请号：US13153132

申请日：2011-06-03

申请人： Indranil Brahma ,  Ashwin Vyas ,  Vivek Anand Sujan ,  Phanindra Garimella ,  John N. Chi ,  Abdoul Karim Abdoul Azizou

发明人： Indranil Brahma ,  Ashwin Vyas ,  Vivek Anand Sujan ,  Phanindra Garimella ,  John N. Chi ,  Abdoul Karim Abdoul Azizou

IPC分类号： F02B37/12 ,  G01M15/04

CPC分类号： F02D41/0007 ,  F02B37/12 ,  F02D41/18 ,  F02D41/222 ,  F02D41/2474 ,  F02D2041/1433 ,  F02D2200/0402 ,  Y02T10/144 ,  Y02T10/40

摘要： An apparatus includes an operating conditions module that interprets a number of compressor operating parameters; a compressor flow module that determines a compressor inlet flow in response to the number of compressor operating parameters; and a fresh air flow module that provides a fresh air flow value in response to the compressor inlet flow. The operating conditions module further interprets a current mass air flow value, and the apparatus further includes a mass air flow sensor trimming module that adjusts a mass air flow sensor drift value in response to the current mass air flow value and the fresh air flow value. The apparatus includes a diagnostics module that determines a mass air flow sensor is failed in response to the current mass air flow value and the fresh air flow value.

摘要翻译： 一种装置包括解释多个压缩机运行参数的操作条件模块; 压缩机流量模块，其响应于压缩机运行参数的数量确定压缩机入口流量; 以及新鲜空气流量模块，其响应于压缩机入口流动而提供新鲜空气流量值。 操作条件模块进一步解释当前质量空气流量值，并且该装置还包括质量空气流量传感器修整模块，其响应于当前质量空气流量值和新鲜空气流量值来调节质量空气流量传感器漂移值。 该装置包括诊断模块，该诊断模块确定质量空气流量传感器响应于当前质量空气流量值和新鲜空气流量值而失败。

公开(公告)号：US08677748B2

公开(公告)日：2014-03-25

申请号：US13153132

申请日：2011-06-03

申请人： Indranil Brahma ,  Ashwin Vyas ,  Vivek Anand Sujan ,  Phanindra Garimella ,  John N. Chi ,  Abdoul Karim Abdoul Azizou

发明人： Indranil Brahma ,  Ashwin Vyas ,  Vivek Anand Sujan ,  Phanindra Garimella ,  John N. Chi ,  Abdoul Karim Abdoul Azizou

IPC分类号： F02D23/00 ,  F02B33/44 ,  F02B37/12 ,  G01M15/00 ,  G01F1/00 ,  G01F1/12 ,  G06F19/00

CPC分类号： F02D41/0007 ,  F02B37/12 ,  F02D41/18 ,  F02D41/222 ,  F02D41/2474 ,  F02D2041/1433 ,  F02D2200/0402 ,  Y02T10/144 ,  Y02T10/40

摘要： An apparatus includes an operating conditions module that interprets a number of compressor operating parameters; a compressor flow module that determines a compressor inlet flow in response to the number of compressor operating parameters; and a fresh air flow module that provides a fresh air flow value in response to the compressor inlet flow. The operating conditions module further interprets a current mass air flow value, and the apparatus further includes a mass air flow sensor trimming module that adjusts a mass air flow sensor drift value in response to the current mass air flow value and the fresh air flow value. The apparatus includes a diagnostics module that determines a mass air flow sensor is failed in response to the current mass air flow value and the fresh air flow value.

摘要翻译： 一种装置包括解释多个压缩机运行参数的操作条件模块; 压缩机流量模块，其响应于压缩机运行参数的数量确定压缩机入口流量; 以及新鲜空气流量模块，其响应于压缩机入口流动而提供新鲜空气流量值。 操作条件模块进一步解释当前质量空气流量值，并且该装置还包括质量空气流量传感器修整模块，其响应于当前质量空气流量值和新鲜空气流量值来调节质量空气流量传感器漂移值。 该装置包括诊断模块，该诊断模块确定质量空气流量传感器响应于当前质量空气流量值和新鲜空气流量值而失败。

公开(公告)号：US07784451B2

公开(公告)日：2010-08-31

申请号：US12184946

申请日：2008-08-01

申请人： John N. Chi

发明人： John N. Chi

IPC分类号： F02B47/08 ,  F02B47/00

CPC分类号： F02D41/0007 ,  F01N3/208 ,  F02B37/24 ,  F02D41/0072 ,  F02D41/1401 ,  F02D41/1458 ,  F02D2041/1432 ,  F02M26/05 ,  F02M26/47 ,  Y02T10/144 ,  Y02T10/47

摘要： Various embodiments of an apparatus, system, and method are disclosed for improving the tracking bandwidth of an air handling system of an internal combustion engine. For example, one embodiment of an apparatus includes an intake charge module configured to determine a desired air intake flow rate into the combustion chamber based at least partially on a desired oxygen concentration in the combustion chamber. The apparatus also includes an EGR system module configured to determine a desired EGR gas flow rate into the combustion chamber based at least partially on the desired oxygen concentration in the combustion chamber. Additionally, the apparatus includes a pre-filter module configured to modify the desired air intake flow rate and the desired EGR gas flow rate based at least partially on predetermined transient response characteristics of the air handling system. The desired air intake flow rate is achievable by commanding a fresh air regulator to achieve the modified air intake flow rate and the desired EGR gas flow rate is achievable by commanding an EGR regulator to achieve the modified EGR gas flow rate.

摘要翻译： 公开了用于改善内燃机的空气处理系统的跟踪带宽的装置，系统和方法的各种实施例。 例如，装置的一个实施例包括进气充注模块，该进气充注模块被配置为至少部分地基于燃烧室中期望的氧气浓度来确定进入燃烧室的期望进气流量。 该装置还包括EGR系统模块，该EGR系统模块被配置为至少部分地基于燃烧室中的期望氧浓度确定进入燃烧室的期望的EGR气体流量。 另外，该装置包括预过滤器模块，该预过滤器模块被配置为至少部分地基于空气处理系统的预定瞬态响应特性来修改所需的进气流量和期望的EGR气体流量。 通过指示新鲜空气调节器来实现改进的进气流量，并且通过命令EGR调节器来实现改进的EGR气体流量，可以实现期望的进气流量。

公开(公告)号：US20100024787A1

公开(公告)日：2010-02-04

申请号：US12184946

申请日：2008-08-01

申请人： John N. Chi

发明人： John N. Chi

IPC分类号： F02B47/08 ,  F02B33/00 ,  F02M35/024 ,  F02M25/07

CPC分类号： F02D41/0007 ,  F01N3/208 ,  F02B37/24 ,  F02D41/0072 ,  F02D41/1401 ,  F02D41/1458 ,  F02D2041/1432 ,  F02M26/05 ,  F02M26/47 ,  Y02T10/144 ,  Y02T10/47

摘要： Various embodiments of an apparatus, system, and method are disclosed for improving the tracking bandwidth of an air handling system of an internal combustion engine. For example, one embodiment of an apparatus includes an intake charge module configured to determine a desired air intake flow rate into the combustion chamber based at least partially on a desired oxygen concentration in the combustion chamber. The apparatus also includes an EGR system module configured to determine a desired EGR gas flow rate into the combustion chamber based at least partially on the desired oxygen concentration in the combustion chamber. Additionally, the apparatus includes a pre-filter module configured to modify the desired air intake flow rate and the desired EGR gas flow rate based at least partially on predetermined transient response characteristics of the air handling system. The desired air intake flow rate is achievable by commanding a fresh air regulator to achieve the modified air intake flow rate and the desired EGR gas flow rate is achievable by commanding an EGR regulator to achieve the modified EGR gas flow rate.

摘要翻译： 公开了用于改善内燃机的空气处理系统的跟踪带宽的装置，系统和方法的各种实施例。 例如，装置的一个实施例包括进气充注模块，该进气充注模块被配置为至少部分地基于燃烧室中期望的氧气浓度来确定进入燃烧室的期望进气流量。 该装置还包括EGR系统模块，该EGR系统模块被配置为至少部分地基于燃烧室中的期望氧浓度确定进入燃烧室的期望的EGR气体流量。 另外，该装置包括预过滤器模块，该预过滤器模块被配置为至少部分地基于空气处理系统的预定瞬态响应特性来修改所需的进气流量和期望的EGR气体流量。 通过指示新鲜空气调节器来实现改进的进气流量，并且通过命令EGR调节器来实现改进的EGR气体流量，可以实现期望的进气流量。

公开(公告)号：US20090272102A1

公开(公告)日：2009-11-05

申请号：US12112622

申请日：2008-04-30

申请人： Abdul R. Ofoli ,  Phanindra Garimella ,  John N. Chi

发明人： Abdul R. Ofoli ,  Phanindra Garimella ,  John N. Chi

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/103 ,  F01N3/105 ,  F01N3/2066 ,  F01N13/009 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/0412 ,  Y02A50/2344 ,  Y02T10/24

摘要： Various embodiments of an apparatus, system, and method are disclosed for reducing NOx emissions on an SCR catalyst. For example, according to one representative embodiment, an apparatus for reducing NOx emissions in an engine exhaust includes a NOx reduction target module that is operable to determine a NOx reduction requirement that includes an amount of NOx in the exhaust gas stream to be reduced on a selective catalytic reduction (SCR) catalyst. The apparatus also includes an ammonia target module that is operable to determine an ammonia addition requirement that includes an amount of ammonia added to the exhaust gas stream to achieve the NOx reduction requirement. The apparatus also includes a reductant target module that has a hydrolysis module and an inverse hydrolysis module. The hydrolysis module is operable to determine a predicted amount of ammonia and isocyanic acid entering the SCR catalyst. The inverse hydrolysis module is operable to determine a reductant injection requirement based at least partially on the predicted amount of ammonia and isocyanic acid entering the SCR catalyst.

摘要翻译： 公开了用于减少SCR催化剂上的NOx排放的设备，系统和方法的各种实施例。 例如，根据一个代表性的实施例，一种用于减少发动机排气中的NOx排放的装置包括NOx还原目标模块，其可操作以确定NOx还原要求，所述NOx还原要求包括排气流中的NOx量， 选择性催化还原（SCR）催化剂。 该装置还包括氨目标模块，该氨目标模块可操作以确定氨添加要求，其包括添加到废气流中的氨量以实现NOx还原要求。 该装置还包括具有水解模块和反相水解模块的还原剂靶模块。 水解模块可操作以确定进入SCR催化剂的氨和异氰酸的预测量。 反相水解模块可操作以至少部分地基于进入SCR催化剂的氨和异氰酸酯的预测量来确定还原剂注入需求。

公开(公告)号：US09062635B2

公开(公告)日：2015-06-23

申请号：US13244550

申请日：2011-09-25

申请人： John N. Chi ,  Indranil Brahma

发明人： John N. Chi ,  Indranil Brahma

IPC分类号： F02B33/44 ,  F02M25/07 ,  G01M15/00 ,  F02D41/00 ,  F02D41/14

CPC分类号： G01M15/106 ,  F02D41/0072 ,  F02D41/1446 ,  F02D41/1448 ,  F02D2041/0075 ,  F02D2200/0406 ,  F02M26/05 ,  F02M26/28 ,  F02M26/47 ,  Y02T10/47

摘要： A system and method are provided for estimating an operating parameter of an exhaust manifold of an engine. In the system, a flow value is determined that corresponds to a flow rate of exhaust gas through an EGR conduit fluidly coupled between the exhaust manifold and the intake manifold. The EGR conduit includes an exhaust gas cooler disposed in-line with the EGR conduit and a property of the exhaust gas exiting an exhaust gas outlet of the cooler is measured. The operating parameter of the exhaust manifold is estimated as a function of at least the flow value and the property of the exhaust gas exiting the exhaust gas outlet of the cooler. Illustratively, the operating parameter of the exhaust manifold may be exhaust manifold pressure and/or temperature.

摘要翻译： 提供了一种用于估计发动机的排气歧管的操作参数的系统和方法。 在该系统中，确定对应于通过流体耦合在排气歧管和进气歧管之间的EGR导管的废气流量的流量值。 EGR导管包括排放气体冷却器，其与EGR管道成一直线设置，并且测量离开冷却器的废气出口的废气的性质。 排气歧管的操作参数被估计为至少离开冷却器的废气出口的排气的流量值和性质的函数。 示例性地，排气歧管的操作参数可以是排气歧管压力和/或温度。

公开(公告)号：US08892332B2

公开(公告)日：2014-11-18

申请号：US13244540

申请日：2011-09-25

申请人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

发明人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

IPC分类号： F02D28/00 ,  G06F19/00 ,  F02D23/00 ,  F02B29/04

CPC分类号： F02D23/00 ,  F02B29/04 ,  F02B37/00 ,  F02D23/005 ,  F02D28/00 ,  F02D41/0007 ,  F02D41/18 ,  F02D2041/1433 ,  F02D2200/0406 ,  F02D2200/0414 ,  G01F1/00 ,  G01P3/00 ,  G01P3/26 ,  Y02T10/144

摘要： A system and method are provided for estimating the operating speed of a turbocharger. A first pressure value corresponds to pressure at or near the air inlet of the compressor, and a second pressure value corresponds to pressure at or near the air outlet of the compressor. A temperature value corresponds to a temperature at or near the air inlet of the compressor, and a flow rate value corresponds to a flow rate of air entering the air inlet of the compressor. The operating speed of the turbocharger is estimated as a function of the first pressure value, the second pressure value, the temperature value and the flow rate value.

摘要翻译： 提供了一种用于估计涡轮增压器的操作速度的系统和方法。 第一压力值对应于压缩机空气入口处或附近的压力，第二压力值对应于压缩机的空气出口处或附近的压力。 温度值对应于压缩机空气入口处或附近的温度，流量值对应于进入压缩机进气口的空气流量。 估计涡轮增压器的运行速度是第一压力值，第二压力值，温度值和流量值的函数。

公开(公告)号：US08887693B2

公开(公告)日：2014-11-18

申请号：US13244547

申请日：2011-09-25

申请人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

发明人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

IPC分类号： F02D41/18 ,  G01M15/00 ,  F02D28/00 ,  F02D23/00 ,  F02D41/00

CPC分类号： F02D28/00 ,  F02D23/00 ,  F02D41/0007 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0414 ,  G01M15/00 ,  Y02T10/144

摘要： A system and method are provided for estimating the flow rate of air entering an air inlet of a turbocharger compressor. A first pressure value corresponds to pressure at or near the air inlet of the compressor, and a second pressure value corresponds to pressure at or near the air outlet of the compressor. A temperature value corresponds to a temperature at or near the air inlet of the compressor, and a speed value corresponds to an operating speed of the turbocharger. The flow rate of air entering the air inlet of the turbocharger compressor is illustratively estimated as a function of the first pressure value, the second pressure value, the temperature value and the speed value.

摘要翻译： 提供了一种用于估计进入涡轮增压器压缩机的进气口的空气的流量的系统和方法。 第一压力值对应于压缩机空气入口处或附近的压力，第二压力值对应于压缩机的空气出口处或附近的压力。 温度值对应于压缩机的入口处或附近的温度，速度值对应于涡轮增压器的运行速度。 作为第一压力值，第二压力值，温度值和速度值的函数，说明性地估计进入涡轮增压器压缩机的进气口的空气的流量。

公开(公告)号：US20130080025A1

公开(公告)日：2013-03-28

申请号：US13244547

申请日：2011-09-25

申请人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

发明人： John N. Chi ,  John M. Mulloy ,  Sriram S. Popuri

IPC分类号： F02D28/00 ,  G01M15/00

CPC分类号： F02D28/00 ,  F02D23/00 ,  F02D41/0007 ,  F02D2200/0402 ,  F02D2200/0406 ,  F02D2200/0414 ,  G01M15/00 ,  Y02T10/144

摘要： A system and method are provided for estimating the flow rate of air entering an air inlet of a turbocharger compressor. A first pressure value corresponds to pressure at or near the air inlet of the compressor, and a second pressure value corresponds to pressure at or near the air outlet of the compressor. A temperature value corresponds to a temperature at or near the air inlet of the compressor, and a speed value corresponds to an operating speed of the turbocharger. The flow rate of air entering the air inlet of the turbocharger compressor is illustratively estimated as a function of the first pressure value, the second pressure value, the temperature value and the speed value.

摘要翻译： 提供了一种用于估计进入涡轮增压器压缩机的进气口的空气的流量的系统和方法。 第一压力值对应于压缩机空气入口处或附近的压力，第二压力值对应于压缩机的空气出口处或附近的压力。 温度值对应于压缩机的入口处或附近的温度，速度值对应于涡轮增压器的运行速度。 作为第一压力值，第二压力值，温度值和速度值的函数，说明性地估计进入涡轮增压器压缩机的进气口的空气的流量。