JP4902495B2 - 汎用エンジンの燃料噴射量制御装置 - Google Patents
汎用エンジンの燃料噴射量制御装置 Download PDFInfo
- Publication number
- JP4902495B2 JP4902495B2 JP2007282188A JP2007282188A JP4902495B2 JP 4902495 B2 JP4902495 B2 JP 4902495B2 JP 2007282188 A JP2007282188 A JP 2007282188A JP 2007282188 A JP2007282188 A JP 2007282188A JP 4902495 B2 JP4902495 B2 JP 4902495B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- time
- increase
- acceleration state
- decrease
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 84
- 238000002347 injection Methods 0.000 title claims description 72
- 239000007924 injection Substances 0.000 title claims description 72
- 230000001133 acceleration Effects 0.000 claims description 102
- 230000007423 decrease Effects 0.000 claims description 72
- 230000008859 change Effects 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 32
- 238000012937 correction Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 17
- 238000005259 measurement Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
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- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/045—Detection of accelerating or decelerating state
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator
-
- 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
- F02D2200/04—Engine intake system parameters
- F02D2200/0404—Throttle position
-
- 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
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
- F02D9/105—Details of the valve housing having a throttle position sensor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
32・・・スロットル弁
45A,45B・・・燃料噴射弁
47・・・スロットル操作手段である摘まみ
50・・・検出手段である目標回転数演算手段
52・・・加速状態判定手段
53・・・加速補正手段
C・・・制御ユニット
Claims (2)
- 吸気通路(31)に燃料を噴射する燃料噴射弁(45A,45B)の燃料噴射量を、スロットル弁(32)の開度を手動操作で定めるスロットル操作手段(47)の操作に応じて制御する制御ユニット(C)を備え、該制御ユニット(C)が、前記スロットル操作手段(47)の操作に伴う加速状態が生じたときには前記燃料噴射弁(45A,45B)の燃料噴射量を増量補正する汎用エンジンの燃料噴射量制御装置において、前記制御ユニット(C)は、前記スロットル弁(32)の開度を代表する指標を検出する検出手段(50)と、該検出手段(50)の検出値の変化量に応じて前記加速状態を判定する加速状態判定手段(52)と、該加速状態判定手段(52)が加速状態と判定するのに応じて前記燃料噴射弁(45A,45B)の燃料噴射量を増量補正する加速補正手段(53)とを含み、前記加速状態判定手段(52)は、第1の所定時間内に前記検出手段(50)の検出値の増加側への変化量が所定値以上であるときに加速状態と判定して燃料増量補正を促す信号を加速補正手段(53)に入力するとともに、前記検出手段(50)の検出値の変化量が第1の所定時間内に増加および減少側に前記所定値以上となったと判断した時点を増減判断時点とし、その増減判断時点で「1」だけ増加させるようにした増減回数を前記増減判断時点毎に計測を開始する時間が第2の所定時間に達したときにはクリアしつつ、その増減回数が所定回数以上となった時点から第3の所定時間が経過するまでは前記加速状態の判定を停止することを特徴とする汎用エンジンの燃料噴射量制御装置。
- 吸気通路(31)に燃料を噴射する燃料噴射弁(45A,45B)の燃料噴射量を、スロットル弁(32)の開度を手動操作で定めるスロットル操作手段(47)の操作に応じて制御する制御ユニット(C)を備え、該制御ユニット(C)が、前記スロットル操作手段(47)の操作に伴う加速状態が生じたときには前記燃料噴射弁(45A,45B)の燃料噴射量を増量補正する汎用エンジンの燃料噴射量制御装置において、前記制御ユニット(C)は、前記スロットル弁(32)の開度を代表する指標を検出する検出手段(50)と、該検出手段(50)の検出値の変化量に応じて前記加速状態を判定する加速状態判定手段(52)と、該加速状態判定手段(52)が加速状態と判定するのに応じて前記燃料噴射弁(45A,45B)の燃料噴射量を増量補正する加速補正手段(53)とを含み、前記加速状態判定手段(52)は、第1の所定時間内に前記検出手段(50)の検出値の増加側への変化量が所定値以上であるときに加速状態と判定して燃料増量補正を促す信号を加速補正手段(53)に入力するとともに、前記検出手段(50)の検出値の変化量が第1の所定時間内に増加および減少側に前記所定値以上となったと判断した時点を増減判断時点とし、その増減判断時点で「1」だけ増加させるようにした増減回数を最初の増減判断時点から第4の所定時間が経過したときにクリアしつつ、第4の所定時間内に前記増減回数が所定回数以上となった時点から第5の所定時間が経過するまでは前記加速状態の判定を停止することを特徴とする汎用エンジンの燃料噴射量制御装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007282188A JP4902495B2 (ja) | 2007-10-30 | 2007-10-30 | 汎用エンジンの燃料噴射量制御装置 |
DE602008004865T DE602008004865D1 (de) | 2007-10-30 | 2008-10-10 | System zur Steuerung der Kraftstoffeinspritzmenge für einen Mehrzweckmotor |
EP08017833A EP2055917B1 (en) | 2007-10-30 | 2008-10-10 | Fuel injection quantity control system for general-purpose engine |
US12/258,124 US7657365B2 (en) | 2007-10-30 | 2008-10-24 | Fuel injection quantity control system for general-purpose engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007282188A JP4902495B2 (ja) | 2007-10-30 | 2007-10-30 | 汎用エンジンの燃料噴射量制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009108774A JP2009108774A (ja) | 2009-05-21 |
JP4902495B2 true JP4902495B2 (ja) | 2012-03-21 |
Family
ID=40279087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007282188A Expired - Fee Related JP4902495B2 (ja) | 2007-10-30 | 2007-10-30 | 汎用エンジンの燃料噴射量制御装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7657365B2 (ja) |
EP (1) | EP2055917B1 (ja) |
JP (1) | JP4902495B2 (ja) |
DE (1) | DE602008004865D1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9194325B2 (en) * | 2009-12-07 | 2015-11-24 | General Electric Company | Method and kit for engine emission control |
US8090521B2 (en) * | 2009-12-07 | 2012-01-03 | General Electric Company | Method and kit for engine emission control |
US8903623B2 (en) * | 2009-12-07 | 2014-12-02 | General Electric Company | Method and kit for engine emission control |
JP5020361B2 (ja) * | 2010-09-08 | 2012-09-05 | 三菱電機株式会社 | エンジンの燃料噴射制御装置 |
US20230235706A1 (en) * | 2022-01-24 | 2023-07-27 | Generac Power Systems, Inc. | Integrated throttle - fuel mixer |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2814397A1 (de) * | 1978-04-04 | 1979-10-18 | Bosch Gmbh Robert | Einrichtung zur kraftstoffzumessung bei einer brennkraftmaschine |
US4312314A (en) * | 1979-11-08 | 1982-01-26 | Outboard Marine Corporation | Acceleration fuel enrichment system for an internal combustion engine |
JPS58220934A (ja) * | 1982-06-16 | 1983-12-22 | Honda Motor Co Ltd | 内燃エンジンの加速時燃料供給制御方法 |
JPH0647957B2 (ja) * | 1983-05-10 | 1994-06-22 | トヨタ自動車株式会社 | 電子制御燃料噴射式エンジンの加速時非同期噴射制御方法 |
DE3834234C2 (de) * | 1987-10-07 | 1994-08-11 | Honda Motor Co Ltd | Kraftstoffzufuhrregler für einen Verbrennungsmotor |
JPH01232136A (ja) * | 1988-03-12 | 1989-09-18 | Hitachi Ltd | エンジン制御装置 |
US5054451A (en) * | 1988-03-25 | 1991-10-08 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for internal combustion |
US4947818A (en) * | 1988-04-28 | 1990-08-14 | Toyota Jidosha Kabushiki Kaisha | Internal combustion engine with device for warning of malfunction in an air-fuel ratio control system |
JP3014835B2 (ja) * | 1991-11-05 | 2000-02-28 | 本田技研工業株式会社 | エンジンのバッテリレス電子燃料噴射制御装置 |
JP3523696B2 (ja) * | 1994-11-10 | 2004-04-26 | 本田技研工業株式会社 | 電子式燃料噴射制御装置 |
JP3890576B2 (ja) * | 1997-04-02 | 2007-03-07 | 株式会社デンソー | 内燃機関の空燃比制御装置 |
JPH11117787A (ja) * | 1997-10-14 | 1999-04-27 | Mitsubishi Electric Corp | 内燃機関制御装置 |
JP3965956B2 (ja) * | 2001-09-28 | 2007-08-29 | 国産電機株式会社 | 電子式燃料噴射制御装置 |
JP4321307B2 (ja) * | 2004-02-26 | 2009-08-26 | 国産電機株式会社 | エンジンのスロットル開口面積推定方法、この推定方法を用いたエンジンの加速検出方法及び加速検出装置並びにエンジンの燃料噴射制御方法及び燃料噴射制御装置 |
JP4450326B2 (ja) * | 2005-10-06 | 2010-04-14 | 日立オートモティブシステムズ株式会社 | 内燃機関の空燃比制御装置及び空燃比制御方法 |
JP4270251B2 (ja) * | 2006-09-13 | 2009-05-27 | トヨタ自動車株式会社 | 燃焼改善手段の故障診断装置 |
-
2007
- 2007-10-30 JP JP2007282188A patent/JP4902495B2/ja not_active Expired - Fee Related
-
2008
- 2008-10-10 EP EP08017833A patent/EP2055917B1/en not_active Expired - Fee Related
- 2008-10-10 DE DE602008004865T patent/DE602008004865D1/de active Active
- 2008-10-24 US US12/258,124 patent/US7657365B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7657365B2 (en) | 2010-02-02 |
EP2055917B1 (en) | 2011-02-09 |
US20090118976A1 (en) | 2009-05-07 |
DE602008004865D1 (de) | 2011-03-24 |
JP2009108774A (ja) | 2009-05-21 |
EP2055917A1 (en) | 2009-05-06 |
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