KR900005615B1 - 내연기관의 연료성상(性狀)검출장치 - Google Patents
내연기관의 연료성상(性狀)검출장치 Download PDFInfo
- Publication number
- KR900005615B1 KR900005615B1 KR1019880010149A KR880010149A KR900005615B1 KR 900005615 B1 KR900005615 B1 KR 900005615B1 KR 1019880010149 A KR1019880010149 A KR 1019880010149A KR 880010149 A KR880010149 A KR 880010149A KR 900005615 B1 KR900005615 B1 KR 900005615B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- internal combustion
- combustion engine
- crank angle
- value
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims description 76
- 238000002485 combustion reaction Methods 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000010365 information processing Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
- F02D2200/0612—Fuel type, fuel composition or fuel quality determined by estimation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims (6)
- 흡입공기유량과 배기가스중의 공연비를 계측하고, 상기 공기유량에 따라 연료의 기본분사량을 산출하여 연료를 분사함과 동시에 배기가스중의 공연비에 따라 분사량을 피드백 보정하는 내연기관의 실린더내 압력을 검출하는 압력검출수단과, 상기 내연기관의 크랭크각을 검출하는 크랭크각검출수단과, 상기 압력검출수단과 상기 크랭크각 검출수단의 양검출신호를 입력으로하며 1회의 점화사이클내에 있어서 압축 및, 팽창 행정 중 크랭크각의 실린더내 압력 P(θ), 크랭크각 θ 및 실린더용적 V(θ)의 값으로부터 1사이클내의 연료 실효발열량 Q를 산출함과 동시에 연료의 유효연산비율 K 또는 연료의 저위발열량 Hu를 산출하며 또 상기 유효연료비율 K 또는 저위발열량 Hu 중 적어도 한쪽의 값, 또는 연료분사 펄스폭 Ti와 저위발열량 Hu의 비 Ti/Hu의 값을 사용하여 연료성상을 검출하는 제어장치등을 구비한 내연기관의 연료성상 검출장치.
- 청구범위 제1항에 있어서, 제어장치는 유효연소비율 K 또는 연료의 저위발열량 Hu 중 적어도 한쪽의 값을, 기관의 동작점을 표시하는 적어도 2개의 데이터 테이블을 작성하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
- 청구범위 제2항에 있어서, 상기 내연기관의 동작점을 표시하는 두 개의 파라미터는 토오크와 기관회전수 또는 흡기관 압력과 기관회전수 혹은 단위 회전수당의 흡입공기유량과 기관회전수중 어느하나를 조합시키는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
- 청구범위 제2항에 있어서, 2차원 데이터 테이블은 내연기관의 온도조건을 표시하는 파라미터마다 작성하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
- 청구범위 제4항에 있어서, 내연기관의 온도조건을 표시한 파라미터는 내연기관 냉각수온도나 실린더벽의 온도중 적어도 한쪽을 취하는 것을 특징으로 하는 내연기관의 연료성상 검출장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP?62-246561 | 1987-09-29 | ||
JP???62-246561 | 1987-09-29 | ||
JP62246561A JPH0750099B2 (ja) | 1987-09-29 | 1987-09-29 | 内燃機関の燃料性状検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890005511A KR890005511A (ko) | 1989-05-15 |
KR900005615B1 true KR900005615B1 (ko) | 1990-07-31 |
Family
ID=17150244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880010149A KR900005615B1 (ko) | 1987-09-29 | 1988-08-09 | 내연기관의 연료성상(性狀)검출장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4905649A (ko) |
JP (1) | JPH0750099B2 (ko) |
KR (1) | KR900005615B1 (ko) |
DE (1) | DE3833123A1 (ko) |
Families Citing this family (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843243C2 (de) * | 1988-12-22 | 1999-04-08 | Fev Motorentech Gmbh & Co Kg | Vorrichtung zur Feststellung des Alkoholgehaltes von Kraftstoffen |
DE3918683A1 (de) * | 1989-03-10 | 1990-09-13 | Motoren Werke Mannheim Ag | Gasmotorregelung |
JPH02283860A (ja) * | 1989-04-24 | 1990-11-21 | Nissan Motor Co Ltd | エンジンの点火時期制御装置 |
JPH02286877A (ja) * | 1989-04-27 | 1990-11-27 | Nissan Motor Co Ltd | エンジンの点火時期制御装置 |
US5109821A (en) * | 1990-01-19 | 1992-05-05 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Engine control system |
JPH0417142U (ko) * | 1990-05-31 | 1992-02-13 | ||
JPH04121438A (ja) * | 1990-09-12 | 1992-04-22 | Mitsubishi Electric Corp | 内燃機関の電子制御燃料噴射装置 |
JP2829161B2 (ja) * | 1991-09-18 | 1998-11-25 | 三菱電機株式会社 | 内燃機関の点火時期制御装置 |
JPH06235347A (ja) * | 1993-01-05 | 1994-08-23 | Unisia Jecs Corp | 内燃機関の燃料性状検出装置 |
JP2935000B2 (ja) * | 1994-02-28 | 1999-08-16 | 株式会社ユニシアジェックス | 内燃機関の燃料性状検出装置 |
JP2884472B2 (ja) * | 1994-03-23 | 1999-04-19 | 株式会社ユニシアジェックス | 内燃機関の燃料性状検出装置 |
JP3326000B2 (ja) * | 1994-04-07 | 2002-09-17 | 株式会社ユニシアジェックス | 内燃機関の燃料性状検出装置 |
DE69620670T2 (de) * | 1995-05-12 | 2002-08-14 | Yamaha Hatsudoki K.K., Iwata | Verfahren und Vorrichtung zur Steuerung des Betriebs einer Brennkraftmaschine |
US5975050A (en) * | 1998-03-06 | 1999-11-02 | Caterpillar Inc. | Method for determining the energy content of a fuel delivered to an engine |
US6079396A (en) * | 1998-04-29 | 2000-06-27 | General Motors Corporation | Automotive cold start fuel volatility compensation |
DE10063752A1 (de) * | 2000-12-21 | 2002-06-27 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Ermittlung des Durchsatzes eines strömenden Mediums |
KR20040045631A (ko) * | 2002-11-25 | 2004-06-02 | 현대자동차주식회사 | 가짜 휘발유 검출 장치 및 그 방법 |
AT413739B (de) * | 2004-02-09 | 2006-05-15 | Ge Jenbacher Gmbh & Co Ohg | Verfahren zum regeln einer brennkraftmaschine |
AT413738B (de) | 2004-02-09 | 2006-05-15 | Ge Jenbacher Gmbh & Co Ohg | Verfahren zum regeln einer brennkraftmaschine |
US7117862B2 (en) * | 2004-05-06 | 2006-10-10 | Dresser, Inc. | Adaptive engine control |
US20080060627A1 (en) | 2004-11-18 | 2008-03-13 | Massachusetts Institute Of Technology | Optimized fuel management system for direct injection ethanol enhancement of gasoline engines |
US7314033B2 (en) * | 2004-11-18 | 2008-01-01 | Massachusetts Institute Of Technology | Fuel management system for variable ethanol octane enhancement of gasoline engines |
EP1775584A3 (de) * | 2005-10-11 | 2011-09-14 | Continental Automotive GmbH | Verfahren und Vorrichtung zur Erkennung der Qualität eines Kraftstoffs für Brennkraftmaschine |
US8014938B2 (en) * | 2005-12-29 | 2011-09-06 | GM Global Technology Operations LLC | Fuel efficiency determination for an engine |
US7597072B2 (en) | 2006-10-24 | 2009-10-06 | Ford Global Technologies, Llc | System and method for operating a multiple fuel engine |
JP4863119B2 (ja) * | 2007-02-21 | 2012-01-25 | トヨタ自動車株式会社 | 内燃機関の運転制御方法および装置 |
JP4784868B2 (ja) | 2007-03-02 | 2011-10-05 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
FR2915524B1 (fr) * | 2007-04-27 | 2009-07-03 | Inst Francais Du Petrole | Procede pour controler le fonctionnement d'un moteur pouvant utiliser un mode de combustion en monocarburation ou en multicarburation |
JP2008274883A (ja) * | 2007-05-01 | 2008-11-13 | Toyota Motor Corp | 内燃機関の制御装置 |
DE102007023900A1 (de) * | 2007-05-23 | 2008-11-27 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Kraftstoffzusammensetzung |
DE102007027181A1 (de) * | 2007-06-13 | 2008-12-18 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Zusammensetzung eines Kraftstoffgemischs |
DE102007027483A1 (de) * | 2007-06-14 | 2008-12-18 | Robert Bosch Gmbh | Verfahren zur Ermittlung eines Qualitätsmerkmals eines Dieselkraftstoffes |
DE102007042229A1 (de) | 2007-09-05 | 2009-03-12 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Zusammensetzung eines Kraftstoffgemischs |
DE102007042403A1 (de) | 2007-09-06 | 2009-03-12 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Zusammensetzung eines Kraftstoffgemischs |
JP4853439B2 (ja) | 2007-09-25 | 2012-01-11 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
DE102007057505A1 (de) | 2007-11-29 | 2009-06-04 | Robert Bosch Gmbh | Verfahren zur Bestimmung des Verhältnisses von Bestandteilen eines Kraftstoffgemischs |
DE102007060224A1 (de) | 2007-12-14 | 2009-06-18 | Robert Bosch Gmbh | Verfahren zur Bestimmung der Zusammensetzung eines Kraftstoffgemischs |
JP4936138B2 (ja) * | 2007-12-21 | 2012-05-23 | トヨタ自動車株式会社 | 混合燃料の性状判定方法および装置ならびに内燃機関の運転制御方法および装置 |
JP4670888B2 (ja) * | 2008-04-02 | 2011-04-13 | トヨタ自動車株式会社 | 内燃機関用燃料のアルコール濃度対応値取得装置 |
US8185293B2 (en) | 2008-06-05 | 2012-05-22 | Robert Bosch Llc | Fuel composition recognition and adaptation system |
FR2934644B1 (fr) * | 2008-07-30 | 2011-04-29 | Renault Sas | Module de puissance pouvant etre alimente par un carburant comprenant de l'essence et de l'alcool dans des proportions variables, et procede de commande associe. |
US8522758B2 (en) | 2008-09-12 | 2013-09-03 | Ethanol Boosting Systems, Llc | Minimizing alcohol use in high efficiency alcohol boosted gasoline engines |
FR2941050B1 (fr) * | 2009-01-12 | 2011-02-11 | Peugeot Citroen Automobiles Sa | Calcul du pouvoir calorifique d'un carburant |
FR2942320B1 (fr) * | 2009-02-16 | 2011-02-11 | Peugeot Citroen Automobiles Sa | Procede de determination du pouvoir calorifique inferieur d'un carburant |
FR2942321B1 (fr) * | 2009-02-16 | 2011-02-11 | Peugeot Citroen Automobiles Sa | Procede de determination du pouvoir calorifique inferieur d'un carburant |
US8108128B2 (en) * | 2009-03-31 | 2012-01-31 | Dresser, Inc. | Controlling exhaust gas recirculation |
DE102009028329A1 (de) | 2009-08-07 | 2011-02-10 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung einer Kraftstoffzusammensetzung oder eines Lambdawertes |
US8733298B2 (en) * | 2010-08-04 | 2014-05-27 | GM Global Technology Operations LLC | Method and apparatus for operating a compression ignition engine |
JP5553046B2 (ja) * | 2011-03-03 | 2014-07-16 | トヨタ自動車株式会社 | 内燃機関燃料のアルコール濃度推定装置 |
JP2012255392A (ja) * | 2011-06-09 | 2012-12-27 | Toyota Motor Corp | 圧縮着火内燃機関の燃費悪化検出装置及び制御装置 |
JP5177269B2 (ja) * | 2011-09-05 | 2013-04-03 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
DE102011086146A1 (de) * | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung der Zusammensetzung eines Kraftstoffgemischs |
JP5949075B2 (ja) * | 2012-04-06 | 2016-07-06 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
US9279406B2 (en) | 2012-06-22 | 2016-03-08 | Illinois Tool Works, Inc. | System and method for analyzing carbon build up in an engine |
EP2832977A1 (en) * | 2013-07-30 | 2015-02-04 | Hitachi, Ltd. | Method and apparatus for estimating an alcohol concentration in an alcohol fuel mixture supplied to an internal combustion engine |
JP6280711B2 (ja) * | 2013-09-04 | 2018-02-14 | 大阪瓦斯株式会社 | エンジン、ヒートポンプ装置、及び燃料ガスの発熱量推定方法 |
US9593629B2 (en) | 2015-03-05 | 2017-03-14 | Caterpillar Inc. | Method and system for controlling an air-fuel ratio in an engine using a fuel source with an unknown composition |
JP6481659B2 (ja) | 2016-06-09 | 2019-03-13 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
WO2022256810A1 (en) * | 2021-06-04 | 2022-12-08 | Cummins Inc. | Adjusting an internal combustion engine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4397285A (en) * | 1981-07-15 | 1983-08-09 | Physics International Company | Closed loop diesel engine control |
US4466408A (en) * | 1983-03-10 | 1984-08-21 | The United States Of America As Represented By The Secretary Of The Army | Apparatus for closed-loop combustion control in internal combustion engines |
JPS6078480A (ja) * | 1983-10-06 | 1985-05-04 | 大日本印刷株式会社 | 文字パタ−ン拡大方式 |
JPS60212643A (ja) * | 1984-04-07 | 1985-10-24 | Nissan Motor Co Ltd | 内燃機関の空燃比制御装置 |
GB2163812B (en) * | 1984-06-29 | 1988-07-06 | Nissan Motor | System for controlling ignition timing in an internal combustion engine and method therefor |
DE3527856A1 (de) * | 1984-08-03 | 1986-02-27 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | Verfahren und vorrichtung zur steuerung einer brennkraftmaschine |
JPS6296780A (ja) * | 1985-10-22 | 1987-05-06 | Nissan Motor Co Ltd | 点火時期制御装置 |
JPH0831603B2 (ja) * | 1986-07-07 | 1996-03-27 | セイコー電子工業株式会社 | Pmisトランジスタ−の製造方法 |
US4788854A (en) * | 1987-12-07 | 1988-12-06 | General Motors Corporation | Method of estimating the fuel/air ratio of an internal combustion engine |
-
1987
- 1987-09-29 JP JP62246561A patent/JPH0750099B2/ja not_active Expired - Fee Related
-
1988
- 1988-08-09 KR KR1019880010149A patent/KR900005615B1/ko not_active IP Right Cessation
- 1988-09-28 US US07/250,175 patent/US4905649A/en not_active Expired - Lifetime
- 1988-09-29 DE DE3833123A patent/DE3833123A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
KR890005511A (ko) | 1989-05-15 |
JPH0750099B2 (ja) | 1995-05-31 |
US4905649A (en) | 1990-03-06 |
DE3833123C2 (ko) | 1990-09-27 |
DE3833123A1 (de) | 1989-04-13 |
JPS6488153A (en) | 1989-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR900005615B1 (ko) | 내연기관의 연료성상(性狀)검출장치 | |
KR940001317B1 (ko) | 내연기관의 밸브타이밍 제어장치 | |
US6167755B1 (en) | Device for determining load in an internal combustion engine | |
EP0742359B1 (en) | Method and apparatus for controlling the operation of an internal combustion engine | |
KR930008512B1 (ko) | 내연기관의 연료 제어장치 | |
US6557526B1 (en) | Setting minimum spark advance for best torque in an internal combustion engine | |
KR930005032B1 (ko) | 내연기관의 점화시기 제어장치 | |
JPH01253543A (ja) | エンジンの空燃比制御装置 | |
KR930005958B1 (ko) | 내연기관의 제어장치 | |
JPS62162919A (ja) | エンジンの吸入空気量検出装置 | |
KR890005378A (ko) | 내연기관의 공연비 제어장치 | |
KR940002212B1 (ko) | 엔진내의 공기량 측정방법 및 장치 | |
US9903293B2 (en) | Diagnostic system for internal combustion engine | |
JP4581993B2 (ja) | 内燃機関の燃焼異常検出装置 | |
JP4022885B2 (ja) | 内燃機関の制御装置および内燃機関の吸入空気量算出方法 | |
JP5910651B2 (ja) | 内燃機関の空燃比検出装置 | |
KR20080011434A (ko) | 내연 기관의 실린더 내에서 연소된 연료 질량과 실린더내부에 공급된 연료 질량 사이의 비율을 결정하기 위한방법 및 장치 | |
KR100465609B1 (ko) | 내연기관의주기적연소변동을검출하기위한방법 | |
JPH0510168A (ja) | 複数気筒型燃料噴射式2サイクル内燃機関 | |
JP2010127229A (ja) | 内燃機関の制御装置 | |
JP4269931B2 (ja) | 筒内圧測定装置および筒内圧測定方法 | |
JPH08312407A (ja) | エンジンの運転状態計測方法および制御方法および装置 | |
JPS61157741A (ja) | 吸入空気量検出装置 | |
JPH0281942A (ja) | 内燃機関の燃焼制御装置 | |
JP2576184B2 (ja) | 内燃機関の燃料噴射量制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19880809 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19880809 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19900630 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19901029 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19901112 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19901112 End annual number: 3 Start annual number: 1 |
|
PR1001 | Payment of annual fee |
Payment date: 19930702 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 19940720 Start annual number: 5 End annual number: 5 |
|
PR1001 | Payment of annual fee |
Payment date: 19950725 Start annual number: 6 End annual number: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 19960718 Start annual number: 7 End annual number: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 19970722 Start annual number: 8 End annual number: 8 |
|
PR1001 | Payment of annual fee |
Payment date: 19980714 Start annual number: 9 End annual number: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 19990716 Start annual number: 10 End annual number: 10 |
|
PR1001 | Payment of annual fee |
Payment date: 20000726 Start annual number: 11 End annual number: 11 |
|
PR1001 | Payment of annual fee |
Payment date: 20010725 Start annual number: 12 End annual number: 12 |
|
PR1001 | Payment of annual fee |
Payment date: 20020723 Start annual number: 13 End annual number: 13 |
|
PR1001 | Payment of annual fee |
Payment date: 20030723 Start annual number: 14 End annual number: 14 |
|
PR1001 | Payment of annual fee |
Payment date: 20040723 Start annual number: 15 End annual number: 15 |
|
PR1001 | Payment of annual fee |
Payment date: 20050722 Start annual number: 16 End annual number: 16 |
|
FPAY | Annual fee payment |
Payment date: 20060725 Year of fee payment: 17 |
|
PR1001 | Payment of annual fee |
Payment date: 20060725 Start annual number: 17 End annual number: 17 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |