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    Method of Controlling NOx Emissions in an Internal Combustion Engine
    3.
    发明公开
    Method of Controlling NOx Emissions in an Internal Combustion Engine 有权
    Verfahren zur Kontrolle von NOx-Emissionen in einem Verbrennungsmotor

    公开(公告)号：EP2410144A1

    公开(公告)日：2012-01-25

    申请号：EP10170039.1

    申请日：2010-07-19

    Applicant: Delphi Technologies Holding S.à.r.l.

    Inventor： Parmentier, Michael ,  Schmitt, Julien

    IPC: F01N3/023 ,  F01N9/00 ,  F01N13/02

    CPC classification number: F01N3/0231 ,  F01N3/106 ,  F01N9/002 ,  F01N13/009 ,  F01N2250/02 ,  F02M26/15 ,  Y02T10/47

    Abstract: A method of controlling NO x emissions in an internal combustion engine is proposed, wherein the engine comprises an exhaust system with oxidation - promoting catalyst means (22) having a NO oxidation efficiency, and wherein the engine is normally operated on a map of normal EGR rates. The engine is operable in a NO 2 -promoting mode that comprises the steps of:
    determining whether operating the engine under a modified EGR rate would lead to an increased generation of NO 2 , said determination taking into account the variability of the NO oxidation efficiency with the oxidation temperature and the exhaust flow rate; and
    using the modified EGR rate for engine control in case it leads to an increased NO 2 generation.

    Abstract translation: 提出了一种控制内燃机NOx排放的方法，其中发动机包括具有NO氧化效率的氧化促进催化剂装置（22）的排气系统，并且其中发动机通常在正常EGR 率。 所述发动机可在NO 2引燃模式下操作，包括以下步骤：确定在改进的EGR率下是否运行发动机将导致NO 2的产生增加，所述确定考虑到NO氧化效率的变化性 氧化温度和排气流量; 并且在引起NO 2产生增加的情况下使用改进的EGR率用于发动机控制。

    Method of regenerating an exhaust after treatment device
    5.
    发明公开
    Method of regenerating an exhaust after treatment device 有权
    VERFAHREN ZUR REENEION EINES ABGASES NACH DER BEHANDLUNGSVORRICHTUNG

    公开(公告)号：EP2224117A1

    公开(公告)日：2010-09-01

    申请号：EP09153751.4

    申请日：2009-02-26

    Applicant: Delphi Technologies Holding S.à.r.l.

    Inventor： Parmentier, Michael ,  Schmitt, Julien

    IPC: F02D41/02 ,  F01N3/023

    CPC classification number: F02D41/029 ,  F02D41/401 ,  F02D41/402 ,  Y02T10/44

    Abstract: A method of controlling combustion in an internal combustion engine with exhaust after treatment device is proposed, wherein upon detection of a request for a regeneration event of the exhaust after treatment device, a regeneration combustion mode comprising a pilot injection and a retarded main injection is operated. During the regeneration combustion mode the injection timing of the main injection is controlled so that its retard is not later than a retard threshold that is determined as the maximum timing retard to provide the desired torque, but with an injected fuel quantity not exceeding a maximum fuel quantity given by a stored smoke-limit map.

    Abstract translation: 提出了一种控制具有排气后处理装置的内燃机中的燃烧的方法，其中，在检测到处理装置之后的废气再生事件的请求时，运行包括先导喷射和延迟主喷射的再生燃烧模式 。 在再生燃烧模式期间，控制主喷射的喷射正时，使得其延迟不晚于被确定为提供期望扭矩的最大定时延迟而具有不超过最大燃料的喷射燃料量的延迟阈值 由存储的烟雾限制图给出的数量。

    Lean nox trap desulfation process
    8.
    发明公开
    Lean nox trap desulfation process 有权
    精益nox陷阱脱硫过程

    公开(公告)号：EP2647815A1

    公开(公告)日：2013-10-09

    申请号：EP12163298.8

    申请日：2012-04-05

    Applicant: Delphi Technologies Holding S.à.r.l.

    Inventor： Schmitt, Julien ,  Michel, Eric

    IPC: F02D41/00 ,  F02D41/02 ,  F02D41/18 ,  F02D41/40 ,  F01N3/08

    CPC classification number: F02D41/0235 ,  F01N3/0814 ,  F01N3/0885 ,  F01N3/106 ,  F01N3/206 ,  F01N11/00 ,  F01N13/009 ,  F01N2610/00 ,  F01N2900/1404 ,  F02D41/0002 ,  F02D41/0007 ,  F02D41/0055 ,  F02D41/025 ,  F02D41/028 ,  F02D41/1446 ,  F02D41/18 ,  F02D41/405 ,  F02D2200/70 ,  F02D2250/18 ,  F02D2250/32 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/42 ,  Y02T10/44 ,  Y02T10/47

    Abstract: A process for desulfation of a NOx adsorber in a diesel internal combustion engine exhaust system is disclosed, which comprises: determining an amount of post fuel ( Q 2 ) required to reach a relatively rich target exhaust air fuel ratio (AFR rich ) on the basis of a measured air flow; determining a heating-contributing fuel value ( ηQ 2 ) required to reach or maintain a target desulfation temperature in said NOx adsorber by way of an exothermal reaction; calculating a target air flow (Air tgt ) corresponding to the air flow required for a substantially stoichiometric combustion of a torque-contributing main fuel quantity ( Q 1 ) together with said heating-contributing fuel value ( ηQ 2 ) ; and causing the engine to inject said post fuel amount ( Q 2 ) and said main fuel quantity ( Q 1 ) while controlling the air flow to meet said target air flow ( Air tgt ) .

    Abstract translation: 公开了一种用于柴油内燃机排气系统中的NOx吸附器脱硫的方法，其包括：基于a，确定达到相对较浓的目标排气空燃比（AFRrich）所需的后燃料量（Q2） 测量空气流量; 通过放热反应确定在所述NOx吸附器中达到或保持目标脱硫温度所需的加热助燃值（ηQ2） 计算对应于转矩贡献主燃料量（Q1）与所述加热贡献燃料值（ηQ2）的基本化学计量燃烧所需的空气流量的目标空气流量（Airtgt）; 并且在控制空气流量以满足所述目标空气流量（Airtgt）的同时使所述发动机喷射所述后燃料量（Q2）和所述主燃料量（Q1）。

    Method of regenerating an exhaust after treatment device
    9.
    发明授权
    Method of regenerating an exhaust after treatment device 有权
    韦尔法罕zur Wiederherstellung eines Abgases nach der Behandlungsvorrichtung

    公开(公告)号：EP2224117B1

    公开(公告)日：2011-11-02

    申请号：EP09153751.4

    申请日：2009-02-26

    Applicant: Delphi Technologies Holding S.à.r.l.

    Inventor： Parmentier, Michael ,  Schmitt, Julien

    IPC: F02D41/02 ,  F01N3/023

    CPC classification number: F02D41/029 ,  F02D41/401 ,  F02D41/402 ,  Y02T10/44

    Abstract: A method of controlling combustion in an internal combustion engine with exhaust after treatment device is proposed, wherein upon detection of a request for a regeneration event of the exhaust after treatment device, a regeneration combustion mode comprising a pilot injection and a retarded main injection is operated. During the regeneration combustion mode the injection timing of the main injection is controlled so that its retard is not later than a retard threshold that is determined as the maximum timing retard to provide the desired torque, but with an injected fuel quantity not exceeding a maximum fuel quantity given by a stored smoke-limit map.

    Abstract translation: 提出了一种控制具有排气后处理装置的内燃机中的燃烧的方法，其中，在检测到处理装置之后的废气再生事件的请求时，运行包括先导喷射和延迟主喷射的再生燃烧模式 。 在再生燃烧模式期间，控制主喷射的喷射正时，使得其延迟不晚于被确定为提供期望扭矩的最大定时延迟而具有不超过最大燃料的喷射燃料量的延迟阈值 由存储的烟雾限制图给出的数量。

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