公开(公告)号：WO2013149782A1

公开(公告)日：2013-10-10

申请号：PCT/EP2013/054458

申请日：2013-03-06

Applicant: DELPHI TECHNOLOGIES HOLDING S.À.R.L.

Inventor： SCHMITT, Julien ,  MICHEL, Eric

IPC: F02D41/00 ,  F02D41/02 ,  F02D41/18 ,  F02D41/40 ,  F01N3/08 ,  F02D41/14

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 stoichio-metric 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机内燃机排气系统中的NOx吸附器脱硫的方法，其包括：基于以下方式确定达到较高目标排气空燃比（AFR浓度）所需的后燃料量（Q2） 测量气流; 确定通过放热反应达到或维持所述NOx吸附器中的目标脱硫温度所需的加热贡献燃料值（etaQ2）; 计算与所述加力贡献燃料值（etaQ2）一起对应于扭矩贡献主燃料量（Q1）的基本上数量级燃烧所需的空气流量的目标空气流量（空气流量）; 并且在控制空气流以满足所述目标空气流（Air tgt）的同时使发动机喷射所述后燃料量（Q2）和所述主燃料量（Q1）。

公开(公告)号：WO2012092974A1

公开(公告)日：2012-07-12

申请号：PCT/EP2011/050158

申请日：2011-01-07

Applicant: DELPHI TECHNOLOGIES HOLDING S.À.R.L. ,  HONDA MOTOR CO., LTD. ,  SCHMITT, Julien ,  PARMENTIER, Michael

Inventor： SCHMITT, Julien ,  PARMENTIER, Michael

IPC: F02D41/02 ,  F02D41/40 ,  F01N11/00 ,  F01N3/023 ,  F01N3/20

CPC classification number: F01N9/00 ,  F01N11/005 ,  F02D41/024 ,  Y02T10/26

Abstract: A method of operating an internal combustion engine is proposed, the engine comprising an exhaust system with a DOC and a DPF and, downstream thereof a SCR catalyst. The ECU is configured to allow operation in at least one of a normal mode and a heat-up mode. A predicted temperature evolution of said second exhaust after treatment means is regularly determined based on a thermal model taking into account the thermal inertia of the exhaust system and having as input the current temperatures of the DOC/DPF and SCR. The predicted temperature evolution of SCR is indicative of the temperature that the SCR may reach during a simulated time period in case the operating mode. The engine operating mode is changed depending on the predicted temperature evolution.

Abstract translation: 提出了一种操作内燃机的方法，该发动机包括具有DOC和DPF的排气系统，以及其下游的SCR催化剂。 ECU被配置为允许在正常模式和加热模式中的至少一个中的操作。 考虑到排气系统的热惯性并具有作为输入DOC / DPF和SCR的当前温度的热模型，规定地确定处理装置之后的所述第二排气的预测温度演变。 SCR的预测温度演变表示在操作模式的情况下SCR可能在模拟时间段内达到的温度。 发动机工作模式根据预测的温度变化而变化。

公开(公告)号：EP2661546A1

公开(公告)日：2013-11-13

申请号：EP11700040.6

申请日：2011-01-07

Applicant: Delphi Technologies Holding S.à.r.l. ,  Honda Motor Co., Ltd.

Inventor： SCHMITT, Julien ,  PARMENTIER, Michael

IPC: F02D41/02 ,  F02D41/40 ,  F01N11/00 ,  F01N3/023 ,  F01N3/20

CPC classification number: F01N9/00 ,  F01N11/005 ,  F02D41/024 ,  Y02T10/26

Abstract: A method of operating an internal combustion engine is proposed, the engine comprising an exhaust system with a DOC and a DPF and, downstream thereof a SCR catalyst. The ECU is configured to allow operation in at least one of a normal mode and a heat-up mode. A predicted temperature evolution of said second exhaust after treatment means is regularly determined based on a thermal model taking into account the thermal inertia of the exhaust system and having as input the current temperatures of the DOC/DPF and SCR. The predicted temperature evolution of SCR is indicative of the temperature that the SCR may reach during a simulated time period in case the operating mode. The engine operating mode is changed depending on the predicted temperature evolution.

公开(公告)号：EP2394034B1

公开(公告)日：2012-12-26

申请号：EP10703452.2

申请日：2010-02-05

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

Inventor： PARMENTIER, Michael ,  SCHMITT, Julien

IPC: F01N3/035 ,  F01N11/00 ,  F02D41/02 ,  F02D41/40 ,  F01N9/00

CPC classification number: F01N11/002 ,  F01N3/035 ,  F01N9/005 ,  F01N11/005 ,  F01N2430/085 ,  F01N2550/02 ,  F02D41/025 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/47

公开(公告)号：EP2394034A1

公开(公告)日：2011-12-14

申请号：EP10703452.2

申请日：2010-02-05

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

Inventor： PARMENTIER, Michael ,  SCHMITT, Julien

IPC: F01N3/035 ,  F01N11/00 ,  F02D41/02 ,  F02D41/40

CPC classification number: F01N11/002 ,  F01N3/035 ,  F01N9/005 ,  F01N11/005 ,  F01N2430/085 ,  F01N2550/02 ,  F02D41/025 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/47

Abstract: There is presented a method for monitoring an oxidation catalyst in an exhaust line of an internal combustion engine, wherein a catalyst diagnostic event comprises a test cycle during which a conversion capability of the oxidation catalyst is determined based on the exotherm generated by post-injection of fuel. The diagnostic event may only be initiated when the temperature of the oxidation catalyst lies within a predetermined temperature range.