• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This system is characterized in that the engine (1) is linked to various members and to means (17) for checking the operation of these various members in order to control the operation of the engine, these means also being designed to trigger a regeneration phase of the particle filter by combustion of the particles trapped in the latter, at the same time initiating a phase of multiple injections of fuel into the cylinders of the engine during their expansion phase, and in that the checking means (17) are designed to control closing of the means (4) for recycling the exhaust gases at the inlet of the engine during a regeneration phase of the particle filter, so as to make it possible to check the composition of the gases at the inlet of the particle filter (7) and isotorque operation of the engine.
    公开号:US20010009095A1
    申请号:US09/765,686
    申请日:2001-01-22
    公开日:2001-07-26
    发明作者:Olivier Salvat；Patrice Tallec
    申请人:Peugeot Citroen Automobiles SA；
    IPC主号:F02D41-402
    专利说明:
    [0001] The present invention relates to a system for assisting the regeneration of a particle filter integrated into an exhaust line of a motor vehicle diesel engine. [0001]
    [0002] It is known that design engineers are constantly preoccupied with reducing the pollutant emissions associated with the running of motor vehicle engines and, in particular, of diesel engines. [0002]
    [0003] Various systems have already been developed in the prior art in order to reduce the level of these pollutant emissions, particularly using a particle filter integrated into the exhaust line. [0003]
    [0004] However, managing the functioning of the latter and, in particular, managing its regeneration also present difficulties. [0004]
    [0005] The object of the invention is, therefore, to solve these. [0005]
    [0006] For this purpose, the subject of the invention is a system for assisting the regeneration of a particle filter integrated into an exhaust line of a motor vehicle diesel engine, characterized in that the engine is linked to various members including: [0006]
    [0007] means for the admission of air into the engine, [0007]
    [0008] means for recycling the exhaust gas from the engine at the inlet of the latter, [0008]
    [0009] a turbocompressor, [0009]
    [0010] an oxidizing catalyst arranged upstream of the particle filter in the exhaust line; [0010]
    [0011] a system for the common supply of fuel to the cylinders of the engine, comprising electrically controlled injectors associated with these cylinders, [0011]
    [0012] means for adding to the fuel an additive intended to be deposited onto the particle filter in order to lower the combustion temperature of the particles trapped in the latter, [0012]
    [0013] means for the acquisition of information relating to various operating parameters of the engine and of the members linked to the latter, and [0013]
    [0014] means for checking the operation of the admission means, of the recycling means, of the turbocompressor and/or of the supply system in order to control the operation of the engine, these means also being designed to trigger a regeneration phase of the particle filter by combustion of the particle trapped in the latter, at the same time initiating a phase of multiple injections of fuel into the cylinders of the engine during their expansion phase, and in that the checking means are designed to trigger closing of the means for recycling the exhaust gases at the inlet of the engine during a regeneration phase of the particle filter, so as to make it possible to check the composition of the gases at the inlet of the particle filter and isotorque operation of the engine. [0014]
    [0015] The invention will be understood more clearly from a reading of the following description given purely by way of example and made with reference to the accompanying drawing which shows a block diagram illustrating a motor vehicle diesel engine and the various members linked to the latter. [0015]
    [0016] To be precise, this Figure shows a motor vehicle diesel engine which is designated by the general reference [0016] 1.
    [0017] This diesel engine is linked to means for the admission of air at the inlet of the latter, which are designated by the general reference [0017] 2.
    [0018] At the outlet, this engine is linked to an exhaust line which is designated by the general reference [0018] 3.
    [0019] Means for recycling the exhaust gas from the engine at the inlet of the latter are also provided and are designated by the general reference [0019] 4.
    [0020] These means are then interposed, for example, between the outlet of the engine and the means [0020] 2 for the admission of air into the latter.
    [0021] The exhaust line may also be linked to a turbocompressor, designated by the general reference [0021] 5, and, more particularly, to the turbo portion of the latter, in the conventional way.
    [0022] Finally, the exhaust line comprises an oxidizing catalyst, designated by the general reference [0022] 6, which is arranged upstream of a particle filter, designated by the general reference 7, arranged in the exhaust line.
    [0023] The engine is likewise linked to a system for the common supply of fuel to the cylinders of the latter. This system is designated by the general reference [0023] 8 in this Figure and comprises, for example, electrically controlled injectors associated with the cylinders.
    [0024] In the exemplary embodiment shown, the engine is a four-cylinder engine and therefore comprises four electrically controlled injectors [0024] 9, 10, 11 and 12 respectively.
    [0025] These various injectors are associated with a common fuel-supply rail designated Joy the general reference [0025] 13 and connected to fuel-supply means designated by the general reference 14 and comprising, for example, a high-pressure pump.
    [0026] These supply means are connected to a fuel tank, designated by the general reference [0026] 15, and to means for adding to this fuel an additive intended to be deposited onto the particle filter in order to lower the combustion temperature of the particles trapped in the latter.
    [0027] In fact, this additive may, for example, be contained in an auxiliary tank designed by the general reference [0027] 16 and associated with the fuel tank 15, so as to make it possible to inject a particular quantity of this additive into the fuel.
    [0028] Finally, this engine of the various members which have just been described are likewise linked to means for checking their operation, designated by the general reference [0028] 17 in this Figure, comprising, for example, any suitable computer 18 associated with information storage means 19 and connected at the input to various means for the acquisition of the information relating to various operating parameters of this engine and of these members, this computer then being designed to check the operation of the admission means, of the recycling means, of the turbocompressor and/or of the supply system in order to control the operation of the engine and, in particular the torque generated by the latter, as a function of the running conditions of the vehicle, in a conventional way.
    [0029] Thus, for example, this computer is connected to a differential-pressure sensor [0029] 20, to the terminals of the catalyst and of the particle filter 6 and 7 respectively, and to temperature sensors 21, 22 and 23 respectively, upstream of the catalyst between this catalyst and the particle filter and downstream of this particle filter in the exhaust line.
    [0030] The computer can also receive information on the oxygen content of the exhaust gases from a lambda λ probe designated by the general reference [0030] 24 in this figure and integrated into the exhaust line.
    [0031] At its output, this computer is designed to control the air admission means, the exhaust gas recycling means, the turbocompressor, the means for adding the additive to the fuel, the means for supplying fuel to the common rail and the various injectors associated with the cylinders of the engine. [0031]
    [0032] In particular, this computer is designed to trigger a regeneration phase of the particle filter by combustion of the particles trapped in the latter, at the same time initiating a phase of multiple injections of fuel into the cylinders of the engine during their expansion phase. [0032]
    [0033] To be precise, the particles emitted by the engine while it is in operation are trapped in the particle filter. It is therefore appropriate to regenerate the latter regularly by combustion of these particles. [0033]
    [0034] During the regeneration phase of the particle filter [0034] 7, the checking means 17 are designed to control closing of the means 4 for recycling the exhaust gases from the engine at the inlet of the latter, thus making it possible to check the composition of the gases at the inlet of the particle filter and isotorque operation of the engine.
    [0035] These recycling means may comprise an opening/closing solenoid value. [0035]
    [0036] This makes it possible to maintain comfort while the vehicle is being driven. [0036]
    权利要求:
    Claims (2)
    [1" id="US-20010009095-A1-CLM-00001] 1. System for assisting the regeneration of a particle filter integrated into an exhaust line of a motor vehicle diesel engine, characterized in that the engine (1) is linked to various members including:
    means (2) for the admission of air into the engine,
    means (4) for recycling the exhaust gas from the engine at the inlet of the latter,
    a turbocompressor (5),
    an oxidizing catalyst (6) arranged upstream of the particle filter (7) in the exhaust line;
    a system (8) for the common supply of fuel to the cylinders of the engine, comprising electrically controlled injectors (9, 10, 11, 12) associated with the cylinders,
    means (16) for adding to the fuel an additive intended to be deposited onto the particle filter (7) in order to lower the combustion temperature of the particles trapped in the latter,
    means (20, 21, 22, 23, 24) for the acquisition of information relating to various operating parameters of the engine and of the members linked to the latter, and
    means (17) for checking the operation of the admission means, of the recycling means, of the turbocompressor and/or of the supply system in order to control the operation of the engine, these means also being designed to trigger a regeneration phase of the particle filter by combustion of the particles trapped in the latter, at the same time initiating a phase of multiple injections of fuel into the cylinders of the engine during their expansion phase, and in that these checking means (17) are designed to trigger closing of the means (4) for recycling the exhaust gases at the inlet of the engine during a regeneration phase of the particle filter (7), so as to make it possible to check the composition of the gases at the inlet of the particle filter and isotorque operation of the engine.
    [2" id="US-20010009095-A1-CLM-00002] 2. System according to
    claim 1 , characterized in that the recycling means (4) comprise an opening/closing solenoid valve.
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    同族专利:
    公开号 | 公开日
    JP2001241317A|2001-09-07|
    EP1118751A1|2001-07-25|
    US6397584B2|2002-06-04|
    DE60109502D1|2005-04-28|
    FR2804175A1|2001-07-27|
    DE60109502T2|2005-08-18|
    ES2239105T3|2005-09-16|
    EP1118751B1|2005-03-23|
    AT291686T|2005-04-15|
    FR2804175B1|2002-04-12|
    JP4723731B2|2011-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20090055086A1|2004-08-31|2009-02-26|Peugeot Citroen Automobiles Sa|System for controlling the operation of a diesel engine of a motor vehicle|JPS5786536A|1980-11-17|1982-05-29|Toyota Motor Corp|Reproduction method of particle catcher and fuel supplier for diesel engine|
    JPS5920511A|1982-07-24|1984-02-02|Mazda Motor Corp|Purification device for diesel engine exhaust|
    DE3580606D1|1984-03-31|1991-01-03|Mitsubishi Motors Corp|REGENERATION SYSTEM FOR A DIESEL PARTICLE OXYDING DEVICE.|
    JPS6193219A|1984-10-12|1986-05-12|Mitsubishi Motors Corp|Diesel particulate oxidizer system|
    EP0213725A3|1985-08-05|1987-07-29|BREHK Ventures|Method and apparatus for trapping and incinerating particulate matter found in diesel engine exhaust|
    DE3909932A1|1989-03-25|1990-09-27|Daimler Benz Ag|METHOD FOR REGENERATING A PARTICLE FILTER ARRANGED IN THE EXHAUST PIPE OF A CHARGED COMBUSTION ENGINE|
    JPH05106518A|1991-10-16|1993-04-27|Nissan Motor Co Ltd|Exhaust gas reflux device of diesel engine|
    DE69306715T2|1992-09-28|1997-04-30|Ford Werke Ag|Device for controlling particle and exhaust gas emissions|
    DE4423003C2|1993-07-06|1999-01-21|Ford Werke Ag|Method and device for reducing NO¶x¶ in exhaust gases from automotive internal combustion engines|
    JP3624429B2|1994-02-28|2005-03-02|株式会社日立製作所|Control device for internal combustion engine|
    JP3089989B2|1995-05-18|2000-09-18|トヨタ自動車株式会社|Diesel engine exhaust purification system|
    US5809774A|1996-11-19|1998-09-22|Clean Diesel Technologies, Inc.|System for fueling and feeding chemicals to internal combustion engines for NOx reduction|
    JPH10176577A|1996-12-17|1998-06-30|Toyota Motor Corp|Control device for internal combustion engine|
    US6063350A|1997-04-02|2000-05-16|Clean Diesel Technologies, Inc.|Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction|
    JPH11280449A|1998-03-31|1999-10-12|Nissan Motor Co Ltd|Exhaust emission control device for internal combustion engine|BR0114205A|2000-09-29|2003-10-07|Omg Ag & Co Kg|Catalytic soot filter and its use in treating poor exhaust gases|
    DE10110340A1|2001-03-03|2002-09-12|Bosch Gmbh Robert|Method and device for controlling an internal combustion engine|
    DE10205380A1|2002-02-09|2003-08-21|Daimler Chrysler Ag|Method and device for treating diesel exhaust|
    US7441403B2|2004-12-20|2008-10-28|Detroit Diesel Corporation|Method and system for determining temperature set points in systems having particulate filters with regeneration capabilities|
    US7210286B2|2004-12-20|2007-05-01|Detroit Diesel Corporation|Method and system for controlling fuel included within exhaust gases to facilitate regeneration of a particulate filter|
    US7461504B2|2004-12-21|2008-12-09|Detroit Diesel Corporation|Method and system for controlling temperatures of exhaust gases emitted from internal combustion engine to facilitate regeneration of a particulate filter|
    US7076945B2|2004-12-22|2006-07-18|Detroit Diesel Corporation|Method and system for controlling temperatures of exhaust gases emitted from an internal combustion engine to facilitate regeneration of a particulate filter|
    US7434388B2|2004-12-22|2008-10-14|Detroit Diesel Corporation|Method and system for regeneration of a particulate filter|
    US20060130465A1|2004-12-22|2006-06-22|Detroit Diesel Corporation|Method and system for controlling exhaust gases emitted from an internal combustion engine|
    US20080047425A1|2006-08-23|2008-02-28|United Technologies Corporation|Mission adaptable inlet particle separator|
    US7669409B2|2006-10-31|2010-03-02|Caterpillar Inc.|Selective oxidation catalyst injection based on temperature|
    法律状态:
    2001-01-22| AS| Assignment|Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FRANCE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SALVAT, OLIVIER;LE TALLEC, PATRICE;REEL/FRAME:011481/0122 Effective date: 20010115 |
    2002-05-17| STCF| Information on status: patent grant|Free format text: PATENTED CASE |
    2005-11-28| FPAY| Fee payment|Year of fee payment: 4 |
    2009-11-30| FPAY| Fee payment|Year of fee payment: 8 |
    2013-11-25| FPAY| Fee payment|Year of fee payment: 12 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR0000715||2000-01-20||
    FR0000715A|FR2804175B1|2000-01-20|2000-01-20|SYSTEM FOR AIDING THE REGENERATION OF A PARTICLE FILTER INTEGRATED IN AN EXHAUST LINE OF A DIESEL ENGINE OF A MOTOR VEHICLE|
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