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    TWO-STAGE TURBOCHARGER FLOW CONTROL
    4.
    发明申请
    TWO-STAGE TURBOCHARGER FLOW CONTROL 有权
    两级涡轮增压器流量控制

    公开(公告)号：US20150068203A1

    公开(公告)日：2015-03-12

    申请号：US14023947

    申请日：2013-09-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yue-Yun Wang ,  Ibrahim Haskara ,  Kevin Andrew Gady

    IPC: F02B37/013 ,  F02B37/16 ,  F02B37/18

    CPC classification number: F02B37/013 ,  F02B37/004 ,  F02B37/168 ,  F02B37/183 ,  F02D41/0007 ,  F02D41/18 ,  F02D2200/0406 ,  F02M37/18 ,  Y02T10/144

    Abstract: A method is disclosed for controlling a two-stage turbocharger system having low-pressure and high-pressure turbochargers in line, sequentially, with an engine. The turbochargers include a low-pressure (LP) turbine and an LP compressor, and a high-pressure (HP) turbine and an HP compressor. The LP compressor feeds the HP compressor, which feeds the engine intake. The engine exhaust feeds the HP turbine, which feeds the LP turbine. The method determines a total boost pressure, which provides combustion reactant for the engine. The method calculates an LP compressor power from the determined total boost pressure, and an LP turbine flow from the LP compressor power. The low-pressure turbocharger operates at the calculated LP turbine flow. The method calculates an HP compressor power from the determined total boost pressure, and an HP turbine flow from the HP compressor power. The high-pressure turbocharger operates at the calculated HP turbine flow.

    Abstract translation: 公开了一种用于根据发动机依次管理具有低压和高压涡轮增压器的两级涡轮增压器系统的方法。 涡轮增压器包括低压（LP）涡轮机和LP压缩机，以及高压（HP）涡轮机和HP压缩机。 LP压缩机为供应发动机进气口的HP压缩机供给。 发动机排气进给供给LP涡轮机的HP涡轮机。 该方法确定总增压压力，其为发动机提供燃烧反应物。 该方法根据所确定的总增压压力和来自LP压缩机功率的LP涡轮机流量来计算LP压缩机功率。 低压涡轮增压器以计算的LP涡轮机流量运行。 该方法根据确定的总增压压力和HP压缩机功率的HP涡轮机流量计算HP压缩机功率。 高压涡轮增压器以计算的HP涡轮流量运行。

    TRANSITION FROM HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION MODE TO SPARK IGNITED COMBUSTION
    5.
    发明申请
    TRANSITION FROM HOMOGENEOUS CHARGE COMPRESSION IGNITION COMBUSTION MODE TO SPARK IGNITED COMBUSTION 有权
    从均匀电荷压缩点火燃烧模式转换到火花点火燃烧

    公开(公告)号：US20140352655A1

    公开(公告)日：2014-12-04

    申请号：US13906965

    申请日：2013-05-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Sai S.V. Rajagopalan ,  Jun-Mo Kang ,  Kevin Andrew Gady

    IPC: F02D13/02 ,  F02B5/02 ,  F02B1/14

    CPC classification number: F02D13/02 ,  F02B1/14 ,  F02B5/02 ,  F02D13/0207 ,  F02D41/3011 ,  F02D41/3017 ,  F02D41/3064 ,  Y02T10/128 ,  Y02T10/18

    Abstract: A method of controlling an engine includes initiating a transition from homogenous charge compression ignition (HCCI) to spark ignited (SI) combustion mode of the engine under low load. The method includes commanding an exhaust valve actuator to increase lift of the exhaust valve to maximize expulsion of combustion chamber contents. The method also includes injecting into the combustion chamber sufficient amount of fuel after the lift of the exhaust valve was increased to generate substantially stoichiometric air-fuel ratio of the gas mixture contained in the chamber. The method also includes igniting the gas mixture after the fuel was injected into the combustion chamber to maximize combustion of the gas mixture. The method additionally includes commanding an intake camshaft phaser to change the position of the intake camshaft to a position configured for predetermined throttled SI combustion mode after the gas mixture was ignited to maximize operating efficiency of the engine.

    Abstract translation: 一种控制发动机的方法包括在低负载下启动从均质充气压缩点火（HCCI）到发动机的火花点火（SI）燃烧模式的转变。 该方法包括命令排气阀致动器以增加排气门的升程，以最大程度地排出燃烧室内容物。 该方法还包括在提高排气阀的提升之后向燃烧室中喷射足够量的燃料以产生包含在室中的气体混合物的基本上理论空燃比。 该方法还包括在将燃料喷射到燃烧室中之后点燃气体混合物以使气体混合物的燃烧最大化。 该方法还包括命令进气凸轮轴相位器，在气体混合物被点燃之后将进气凸轮轴的位置改变成配置成预定的节流SI燃烧模式的位置，以使发动机的运行效率最大化。

    Transition from homogeneous charge compression ignition combustion mode to spark ignited combustion
    8.
    发明授权
    Transition from homogeneous charge compression ignition combustion mode to spark ignited combustion 有权
    从均质充气压缩点火燃烧模式转变为火花点火燃烧

    公开(公告)号：US09470154B2

    公开(公告)日：2016-10-18

    申请号：US13906965

    申请日：2013-05-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Sai S. V. Rajagopalan ,  Jun-Mo Kang ,  Kevin Andrew Gady

    IPC: F02D13/02 ,  F02D41/30 ,  F02B1/14 ,  F02B5/02

    CPC classification number: F02D13/02 ,  F02B1/14 ,  F02B5/02 ,  F02D13/0207 ,  F02D41/3011 ,  F02D41/3017 ,  F02D41/3064 ,  Y02T10/128 ,  Y02T10/18

    Abstract: A method of controlling an engine includes initiating a transition from homogenous charge compression ignition (HCCI) to spark ignited (SI) combustion mode of the engine under low load. The method includes commanding an exhaust valve actuator to increase lift of the exhaust valve to maximize expulsion of combustion chamber contents. The method also includes injecting into the combustion chamber sufficient amount of fuel after the lift of the exhaust valve was increased to generate substantially stoichiometric air-fuel ratio of the gas mixture contained in the chamber. The method also includes igniting the gas mixture after the fuel was injected into the combustion chamber to maximize combustion of the gas mixture. The method additionally includes commanding an intake camshaft phaser to change the position of the intake camshaft to a position configured for predetermined throttled SI combustion mode after the gas mixture was ignited to maximize operating efficiency of the engine.

    Abstract translation: 一种控制发动机的方法包括在低负载下启动从均质充气压缩点火（HCCI）到发动机的火花点火（SI）燃烧模式的转变。 该方法包括命令排气阀致动器以增加排气门的升程，以最大程度地排出燃烧室内容物。 该方法还包括在提高排气阀的提升之后向燃烧室中喷射足够量的燃料以产生包含在室中的气体混合物的基本上理论空燃比。 该方法还包括在将燃料喷射到燃烧室中之后点燃气体混合物以使气体混合物的燃烧最大化。 该方法还包括命令进气凸轮轴相位器，在气体混合物被点燃之后将进气凸轮轴的位置改变成配置成预定的节流SI燃烧模式的位置，以最大化发动机的运行效率。

    Two-stage turbocharger flow control
    9.
    发明授权
    Two-stage turbocharger flow control 有权
    两级涡轮增压器流量控制

    公开(公告)号：US09217362B2

    公开(公告)日：2015-12-22

    申请号：US14023947

    申请日：2013-09-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yue-Yun Wang ,  Ibrahim Haskara ,  Kevin Andrew Gady

    IPC: F02D23/00 ,  F02B37/013 ,  F02B37/16 ,  F02B37/18 ,  F02M37/18 ,  F02B37/00 ,  F02D41/00 ,  F02D41/18

    CPC classification number: F02B37/013 ,  F02B37/004 ,  F02B37/168 ,  F02B37/183 ,  F02D41/0007 ,  F02D41/18 ,  F02D2200/0406 ,  F02M37/18 ,  Y02T10/144

    Abstract: A method is disclosed for controlling a two-stage turbocharger system having low-pressure and high-pressure turbochargers in line, sequentially, with an engine. The turbochargers include a low-pressure (LP) turbine and an LP compressor, and a high-pressure (HP) turbine and an HP compressor. The LP compressor feeds the HP compressor, which feeds the engine intake. The engine exhaust feeds the HP turbine, which feeds the LP turbine. The method determines a total boost pressure, which provides combustion reactant for the engine. The method calculates an LP compressor power from the determined total boost pressure, and an LP turbine flow from the LP compressor power. The low-pressure turbocharger operates at the calculated LP turbine flow. The method calculates an HP compressor power from the determined total boost pressure, and an HP turbine flow from the HP compressor power. The high-pressure turbocharger operates at the calculated HP turbine flow.

    Abstract translation: 公开了一种用于根据发动机依次管理具有低压和高压涡轮增压器的两级涡轮增压器系统的方法。 涡轮增压器包括低压（LP）涡轮机和LP压缩机，以及高压（HP）涡轮机和HP压缩机。 LP压缩机为供应发动机进气口的HP压缩机供给。 发动机排气进给供给LP涡轮机的HP涡轮机。 该方法确定总增压压力，其为发动机提供燃烧反应物。 该方法根据所确定的总增压压力和来自LP压缩机功率的LP涡轮机流量来计算LP压缩机功率。 低压涡轮增压器以计算的LP涡轮机流量运行。 该方法根据确定的总增压压力和HP压缩机功率的HP涡轮机流量计算HP压缩机功率。 高压涡轮增压器以计算的HP涡轮流量运行。

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