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    Method for determining an estimated amount of soot accumulated in a particulate filter of an exhaust gas after-treatment system
    12.
    发明授权
    Method for determining an estimated amount of soot accumulated in a particulate filter of an exhaust gas after-treatment system 有权
    用于确定在废气后处理系统的颗粒过滤器中累积的烟灰的估计量的方法

    公开(公告)号：US09366171B2

    公开(公告)日：2016-06-14

    申请号：US14153449

    申请日：2014-01-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jianwen Li ,  Rahul Mital

    IPC: F01N3/00 ,  F01N9/00 ,  F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  F01N11/00

    CPC classification number: F01N9/002 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N11/002 ,  F01N2550/04 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A method for estimating the amount of soot accumulated in a particulate filter of a vehicle exhaust gas system is provided. The system may include an engine, an exhaust gas system, having a particulate filter, and a controller configured to execute the present method. The controller may be configured to evaluate an instantaneous volumetric flow rate of an exhaust gas flowing through the exhaust gas system; monitor an exhaust gas pressure drop across the particulate filter; determine a drive state of the vehicle based on the instantaneous volumetric flow rate of exhaust gas and the exhaust gas pressure drop; and execute one of a first control action when the drive state is a steady-state drive state and a second control action when the drive state is a transient-state drive state.

    Abstract translation: 提供了一种用于估计在车辆废气系统的微粒过滤器中积累的烟尘的量的方法。 该系统可以包括具有微粒过滤器的发动机，排气系统和被配置为执行本方法的控制器。 控制器可以被配置为评估流过排气系统的废气的瞬时体积流量; 监测颗粒过滤器上的废气压降; 基于废气的瞬时体积流量和废气压降确定车辆的驱动状态; 并且当所述驱动状态是稳态驱动状态时，执行第一控制动作中的一个，以及当所述驱动状态是过渡状态驱动状态时的第二控制动作。

    System and method for particulate filter regeneration
    13.
    发明授权
    System and method for particulate filter regeneration 有权
    微粒过滤器再生系统及方法

    公开(公告)号：US09046016B2

    公开(公告)日：2015-06-02

    申请号：US13672046

    申请日：2012-11-08

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Thomas Larose, Jr. ,  John A. Catalogna ,  Jianwen Li

    IPC: F01N3/023

    CPC classification number: F01N3/023 ,  F01N3/027 ,  F01N3/035 ,  F01N3/2066 ,  F01N9/002 ,  F01N2430/08 ,  F01N2900/1411 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/47

    Abstract: In one exemplary embodiment of the invention, a method for controlling regeneration for an exhaust system including a particulate filter is provided, where the method includes determining a mass flow rate of oxygen, determining a particulate mass, providing information describing desired set point temperatures corresponding to oxygen mass flow rates and particulate mass values and determining a temperature set point for exhaust gas entering the particulate filter based on the mass flow rate of oxygen, the particulate mass and the information describing desired set point temperatures corresponding to oxygen mass flow rates and particulate mass values. The method further includes communicating a signal to control a parameter for at least one selected from the group consisting of: a hydrocarbon injector, a heating device and a fuel injector configured to provide hydrocarbon post-injection to a cylinder of the internal combustion engine, the controlling based on the determined temperature set point.

    Abstract translation: 在本发明的一个示例性实施例中，提供了一种用于控制包括微粒过滤器的排气系统的再生的方法，其中所述方法包括确定氧气的质量流量，确定颗粒物质，提供描述对应于 氧质量流量和颗粒物质值，并且基于氧质量流量，颗粒物质和描述对应于氧质量流率和颗粒物质的所需设定点温度的信息确定进入颗粒过滤器的废气的温度设定点 价值观。 所述方法还包括传达信号以控制从由以下组成的组中选择的至少一个的参数：烃注射器，加热装置和配置成向内燃机的气缸提供烃后喷射的燃料喷射器， 根据确定的温度设定点进行控制。

    INTEGRATED MIXING SYSTEM FOR EXHAUST AFTERTREATMENT SYSTEM
    18.
    发明申请
    INTEGRATED MIXING SYSTEM FOR EXHAUST AFTERTREATMENT SYSTEM 审中-公开
    用于排气后处理系统的综合混合系统

    公开(公告)号：US20150308316A1

    公开(公告)日：2015-10-29

    申请号：US14264894

    申请日：2014-04-29

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jianwen Li ,  James B. Rodgers ,  Yong Miao ,  Rahul Mital ,  Luciano Nunziato Di Perna

    IPC: F01N3/20

    CPC classification number: F01N3/208 ,  F01N3/021 ,  F01N3/2066 ,  F01N3/2892 ,  F01N13/009 ,  F01N2240/20 ,  F01N2610/02 ,  Y02T10/24

    Abstract: In one aspect, a swirl can mixer assembly for mixing a fluid with exhaust gas exhausted from an internal combustion engine is provided. The assembly includes an inlet portion including an injection area configured to receive a fluid injector for dispensing the fluid into the exhaust gas for mixing with the exhaust gas in the mixing assembly to produce an exhaust gas/fluid mixture, an outlet portion, and an extended mixing conduit fluidly coupled between the inlet portion and the outlet portion. The extended mixing conduit is curved about at least a portion of a circumference of the outlet portion to induce a swirl in the exhaust gas/fluid mixture such that the exhaust gas/fluid mixture enters the outlet portion tangentially thereto.

    Abstract translation: 一方面，提供了一种用于将流体与从内燃机排出的废气混合的涡流罐混合器组件。 该组件包括入口部分，该入口部分包括喷射区域，其被配置为接收流体喷射器，用于将流体分配到废气中以与混合组件中的废气混合以产生废气/流体混合物，出口部分和延伸 流体地联接在入口部分和出口部分之间的混合导管。 延伸的混合管道围绕出口部分的圆周的至少一部分弯曲，以在废气/流体混合物中引起涡流，使得废气/流体混合物与其切向地进入出口部分。

    EFFICIENT LEAN NOX TRAP REGENERATION WITH ENCHANCED AMMONIA FORMATION
    19.
    发明申请
    EFFICIENT LEAN NOX TRAP REGENERATION WITH ENCHANCED AMMONIA FORMATION 审中-公开
    有效地利用增强的氨态氮形成重新获得氮氧化物

    公开(公告)号：US20150238903A1

    公开(公告)日：2015-08-27

    申请号：US14189398

    申请日：2014-02-25

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Rahul Mital ,  Jianwen Li ,  Andrea De Filippo ,  Chang H. Kim ,  Shouxian Ren

    IPC: B01D53/94

    CPC classification number: B01D53/9495 ,  B01D53/9409 ,  B01D53/9431 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2066 ,  F01N9/00 ,  F01N13/009 ,  F01N2410/00 ,  F01N2430/06 ,  F01N2610/02 ,  F01N2610/03 ,  Y02T10/24 ,  Y02T10/47

    Abstract: A method is disclosed of providing a fuel efficient regeneration of an exhaust after-treatment (AT) system that includes a lean oxides of nitrogen (NOX) trap (LNT) and a selective catalytic reduction filter (SCRF) positioned downstream of the LNT. The method includes regulating a selectable position valve. The valve permits a first gas flow portion to pass through the LNT and diverts a remaining second portion of exhaust gas flow from a first passage connecting an engine and the AT system to a second exhaust passage to thereby bypass the LNT. The method also includes regulating a first device to inject fuel into the first portion of the exhaust gas flow. The injection of fuel in to the first portion of the exhaust gas flow provides fuel efficient regeneration of the LNT and promotes NOX conversion and ammonia (NH3) formation in the LNT. A system employing the method is also disclosed.

    Abstract translation: 公开了一种提供排气后处理（AT）系统的燃料效率再生的方法，其包括位于LNT下游的氮（NOX）捕集器（LNT）和选择性催化还原过滤器（SCRF）的贫氧化物。 该方法包括调节可选位置阀。 阀允许第一气体流动部分穿过LNT并将剩余的第二部分废气流从连接发动机和AT系统的第一通道转移到第二排气通道，从而绕过LNT。 该方法还包括调节第一装置以将燃料喷射到废气流的第一部分中。 将燃料喷射到废气流的第一部分中提供了LNT的燃料效率再生，并促进了LNT中的NOX转化和氨（NH 3）形成。 还公开了一种采用该方法的系统。

    ENGINE WITH VALVE ASSEMBLY FOR SELECTABLE EXHAUST GAS BYPASS
    20.
    发明申请
    ENGINE WITH VALVE ASSEMBLY FOR SELECTABLE EXHAUST GAS BYPASS 审中-公开

    公开(公告)号：US20200325856A1

    公开(公告)日：2020-10-15

    申请号：US16383032

    申请日：2019-04-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jianwen Li ,  Michael J. Bonello

    IPC: F02M26/16 ,  F02F1/42 ,  F02B37/02 ,  F02B37/12 ,  F02F1/24 ,  F02F1/36 ,  F01N13/10 ,  F02M26/04 ,  F02M26/09 ,  F02M26/43

    Abstract: An internal combustion engine includes a cylinder head assembly having a first group of exhaust ports and a second group of exhaust ports as well as an exhaust manifold integrated with the cylinder head assembly. The exhaust manifold includes a first runner in fluid communication with the first group of exhaust ports. The first runner defines a first exit configured for directing exhaust gas from the first group of exhaust ports to an EGR bypass passage and further defines a second exit configured for directing exhaust gas from the first group of exhaust ports to a turbocharger passage. The engine further includes a bypass valve assembly mounted to the exhaust manifold and having a bypass valve disposed within the first runner. The bypass valve is moveable between a turbine-closed position and an EGR-closed position.

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