JP4297082B2 - 内燃機関の空燃比制御装置 - Google Patents

内燃機関の空燃比制御装置 Download PDF

Info

Publication number
JP4297082B2
JP4297082B2 JP2005159778A JP2005159778A JP4297082B2 JP 4297082 B2 JP4297082 B2 JP 4297082B2 JP 2005159778 A JP2005159778 A JP 2005159778A JP 2005159778 A JP2005159778 A JP 2005159778A JP 4297082 B2 JP4297082 B2 JP 4297082B2
Authority
JP
Japan
Prior art keywords
air
fuel ratio
cylinder
exhaust
cylinder group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2005159778A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006336503A5 (enExample
JP2006336503A (ja
Inventor
茂樹 宮下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2005159778A priority Critical patent/JP4297082B2/ja
Priority to PCT/JP2006/309889 priority patent/WO2006129483A1/en
Priority to US11/629,628 priority patent/US7377273B2/en
Priority to CNB2006800007945A priority patent/CN100449129C/zh
Priority to EP06746577A priority patent/EP1886007B1/en
Publication of JP2006336503A publication Critical patent/JP2006336503A/ja
Publication of JP2006336503A5 publication Critical patent/JP2006336503A5/ja
Application granted granted Critical
Publication of JP4297082B2 publication Critical patent/JP4297082B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0082—Controlling each cylinder individually per groups or banks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
    • F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features having two or more purifying devices arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/107—More than one exhaust manifold or exhaust collector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0842—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
    • F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
    • F02D41/0275—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a NOx trap or adsorbent
    • F02D41/028—Desulfurisation of NOx traps or adsorbent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2430/00—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics
    • F01N2430/10—Influencing exhaust purification, e.g. starting of catalytic reaction, filter regeneration, or the like, by controlling engine operating characteristics by modifying inlet or exhaust valve timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/025—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/14—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D2041/001—Controlling intake air for engines with variable valve actuation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Control Of Ignition Timing (AREA)
JP2005159778A 2005-05-31 2005-05-31 内燃機関の空燃比制御装置 Expired - Fee Related JP4297082B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2005159778A JP4297082B2 (ja) 2005-05-31 2005-05-31 内燃機関の空燃比制御装置
PCT/JP2006/309889 WO2006129483A1 (en) 2005-05-31 2006-05-11 Air-fuel ratio control apparatus for internal combustion engine
US11/629,628 US7377273B2 (en) 2005-05-31 2006-05-11 Air-fuel ratio control apparatus for internal combustion engine
CNB2006800007945A CN100449129C (zh) 2005-05-31 2006-05-11 用于内燃机的空燃比控制装置
EP06746577A EP1886007B1 (en) 2005-05-31 2006-05-11 Air-fuel ratio control apparatus for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005159778A JP4297082B2 (ja) 2005-05-31 2005-05-31 内燃機関の空燃比制御装置

Publications (3)

Publication Number Publication Date
JP2006336503A JP2006336503A (ja) 2006-12-14
JP2006336503A5 JP2006336503A5 (enExample) 2007-12-27
JP4297082B2 true JP4297082B2 (ja) 2009-07-15

Family

ID=36691858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005159778A Expired - Fee Related JP4297082B2 (ja) 2005-05-31 2005-05-31 内燃機関の空燃比制御装置

Country Status (5)

Country Link
US (1) US7377273B2 (enExample)
EP (1) EP1886007B1 (enExample)
JP (1) JP4297082B2 (enExample)
CN (1) CN100449129C (enExample)
WO (1) WO2006129483A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8324004B2 (en) 2000-12-18 2012-12-04 Samsung Electronics Co., Ltd. Method for manufacturing of light emitting device using GaN series III-V group nitride semiconductor material

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072790B1 (en) * 2006-10-12 2019-08-07 Toyota Jidosha Kabushiki Kaisha Device for controlling air/fuel ratio of multi-cylinder internal combustion engine
JP4400633B2 (ja) * 2007-02-26 2010-01-20 トヨタ自動車株式会社 内燃機関の制御システム
JP4470975B2 (ja) * 2007-08-30 2010-06-02 株式会社デンソー 燃料噴射制御装置およびそれを用いた燃料噴射システム
EP2031229B1 (en) * 2007-08-30 2018-10-31 Denso Corporation Apparatus for controlling quantity of fuel to be actually sprayed from injector in multiple injection mode
JP5411728B2 (ja) * 2010-01-28 2014-02-12 本田技研工業株式会社 内燃機関の空燃比学習制御装置
JP5411730B2 (ja) * 2010-01-29 2014-02-12 本田技研工業株式会社 車両用内燃機関の空燃比学習制御装置
US9650036B2 (en) * 2012-05-04 2017-05-16 Ford Global Technologies, Llc Methods and systems for adjusting cylinder air charge
CN103244291A (zh) * 2013-04-25 2013-08-14 天津大学 配有NOx吸附还原催化转化器的稀燃汽油机恒扭矩自学习控制方法
CN103225554A (zh) * 2013-04-25 2013-07-31 天津大学 配有NOx吸附还原催化转化器的稀燃汽油机恒扭矩自学习控制方法
CN103216343A (zh) * 2013-04-25 2013-07-24 天津大学 配有NOx吸附还原催化转化器的稀燃汽油机恒扭矩自学习控制系统
JP6183295B2 (ja) * 2014-05-30 2017-08-23 トヨタ自動車株式会社 内燃機関の制御装置
JP6287802B2 (ja) * 2014-12-12 2018-03-07 トヨタ自動車株式会社 内燃機関の制御装置
US10077727B2 (en) 2016-01-13 2018-09-18 GM Global Technology Operations LLC Engine control systems and methods for nitrogen oxide reduction
US9957911B2 (en) * 2016-02-18 2018-05-01 GM Global Technology Operations LLC Dedicated exhaust gas recirculation control systems and methods
JP6888508B2 (ja) * 2017-10-05 2021-06-16 トヨタ自動車株式会社 内燃機関の制御装置
JP6926968B2 (ja) * 2017-11-08 2021-08-25 トヨタ自動車株式会社 内燃機関の制御装置
US10215115B1 (en) * 2018-02-01 2019-02-26 Ford Global Technologies, Llc Methods and systems for individual cylinder air-fuel ratio control in a combustion engine
EP4115068A4 (en) * 2020-03-02 2023-11-29 Volvo Truck Corporation ENGINE SYSTEM WITH FUEL SYSTEM CONTROL ARRANGEMENT AND METHOD FOR CONTROLLING FUEL INJECTION IN AN INTERNAL COMBUSTION ENGINE
US11346295B2 (en) * 2020-08-04 2022-05-31 Ford Global Technologies, Llc Methods and systems for heating an after treatment device via an internal combustion engine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5758493A (en) * 1996-12-13 1998-06-02 Ford Global Technologies, Inc. Method and apparatus for desulfating a NOx trap
JP3680611B2 (ja) * 1999-02-03 2005-08-10 日産自動車株式会社 内燃機関の排気浄化装置
DE19910503C1 (de) * 1999-03-10 2000-07-06 Daimler Chrysler Ag Verfahren und Vorrichtung zur periodischen Desulfatisierung eines Stickoxid- oder Schwefeloxid-Speichers mit Fett/Mager-Motorzylinderaufteilung
JP2000352310A (ja) 1999-06-08 2000-12-19 Honda Motor Co Ltd 内燃機関の制御装置
US6324835B1 (en) * 1999-10-18 2001-12-04 Ford Global Technologies, Inc. Engine air and fuel control
JP4325078B2 (ja) 2000-05-17 2009-09-02 トヨタ自動車株式会社 可変動弁機構を有する内燃機関
US6550240B2 (en) 2001-09-14 2003-04-22 Ford Global Technologies, Inc. Lean engine control with multiple catalysts
US6543219B1 (en) * 2001-10-29 2003-04-08 Ford Global Technologies, Inc. Engine fueling control for catalyst desulfurization
US6804953B2 (en) * 2001-12-27 2004-10-19 Denso Corporation Air-fuel ratio control system for multi-cylinder engine
US7055311B2 (en) * 2002-08-31 2006-06-06 Engelhard Corporation Emission control system for vehicles powered by diesel engines
US6951098B2 (en) * 2002-11-01 2005-10-04 Ford Global Technologies, Llc Method and system for controlling temperature of an internal combustion engine exhaust gas aftertreatment device
DE10326889B4 (de) * 2003-06-14 2016-05-12 Daimler Ag Verfahren zum Betrieb einer fremdgezündeten Brennkraftmaschine
US6978204B2 (en) * 2004-03-05 2005-12-20 Ford Global Technologies, Llc Engine system and method with cylinder deactivation
US7195001B1 (en) * 2005-09-02 2007-03-27 Ford Global Technologies, Llc Fuel injector activity verification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8324004B2 (en) 2000-12-18 2012-12-04 Samsung Electronics Co., Ltd. Method for manufacturing of light emitting device using GaN series III-V group nitride semiconductor material

Also Published As

Publication number Publication date
CN101018939A (zh) 2007-08-15
EP1886007A1 (en) 2008-02-13
EP1886007B1 (en) 2012-11-07
CN100449129C (zh) 2009-01-07
US7377273B2 (en) 2008-05-27
US20080011282A1 (en) 2008-01-17
JP2006336503A (ja) 2006-12-14
WO2006129483A1 (en) 2006-12-07

Similar Documents

Publication Publication Date Title
JP4297082B2 (ja) 内燃機関の空燃比制御装置
JP5240370B2 (ja) 内燃機関の制御装置
JP4815407B2 (ja) 内燃機関の運転制御装置
JP2015007396A (ja) エンジンの制御装置
JP6301597B2 (ja) 筒内噴射エンジンの制御装置
JP5586733B1 (ja) 内燃機関の燃料噴射量制御装置および内燃機関の燃料噴射量制御方法
JP5273060B2 (ja) 内燃機関の空燃比ばらつき検出装置
JP3797011B2 (ja) 筒内噴射式内燃機関
JP5050941B2 (ja) エンジンの空燃比制御
JP4407505B2 (ja) 内燃機関のバルブ特性制御装置
JP5644342B2 (ja) 多気筒内燃機関の制御装置
JP2000097088A (ja) 内燃機関の燃料噴射量制御装置
JP4792453B2 (ja) 吸入空気量検出装置
JP2010168931A (ja) 火花点火式内燃機関の点火時期制御装置
JP2017008770A (ja) 内燃機関の制御装置
JP4396678B2 (ja) 内燃機関の制御装置
JP5157672B2 (ja) 多気筒エンジンの空燃比制御方法
JP2012255398A (ja) 内燃機関の制御装置
JP2009275694A (ja) 内燃機関の制御装置
JP3954010B2 (ja) 内燃機関の制御装置
JP2007170198A (ja) 内燃機関のトルク制御装置
JP2007285239A (ja) 内燃機関の制御装置
JP2000320355A (ja) 内燃エンジンの制御装置
JP2007077842A (ja) 内燃機関の制御装置
JP6232758B2 (ja) 内燃機関の制御装置および制御方法

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070207

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090127

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090303

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090324

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090406

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120424

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120424

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130424

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140424

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees