JP6501396B2 - 手持ち式エンジン作業機 - Google Patents
手持ち式エンジン作業機 Download PDFInfo
- Publication number
- JP6501396B2 JP6501396B2 JP2015089630A JP2015089630A JP6501396B2 JP 6501396 B2 JP6501396 B2 JP 6501396B2 JP 2015089630 A JP2015089630 A JP 2015089630A JP 2015089630 A JP2015089630 A JP 2015089630A JP 6501396 B2 JP6501396 B2 JP 6501396B2
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- engine
- control value
- value
- rotational speed
- solenoid valve
- 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.)
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- 239000000446 fuel Substances 0.000 claims description 26
- 239000006200 vaporizer Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 description 13
- 230000003247 decreasing effect Effects 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 101000585359 Homo sapiens Suppressor of tumorigenicity 20 protein Proteins 0.000 description 1
- 102100029860 Suppressor of tumorigenicity 20 protein Human genes 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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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
-
- 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
- F02D41/345—Controlling injection timing
-
- 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
- F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
-
- 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
- F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
- F02D35/0046—Controlling fuel supply
- F02D35/0053—Controlling fuel supply by means of a carburettor
-
- 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
- F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/133—Auxiliary jets, i.e. operating only under certain conditions, e.g. full power
-
- 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
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
- F02D2400/06—Small engines with electronic control, e.g. for hand held tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/007—Electric control of rotation speed controlling fuel supply
- F02D31/009—Electric control of rotation speed controlling fuel supply for maximum speed control
-
- 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
- F02D35/0015—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for using exhaust gas sensors
- F02D35/0046—Controlling fuel supply
- F02D35/0053—Controlling fuel supply by means of a carburettor
- F02D35/0069—Controlling the fuel flow only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
- F02M7/22—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves fuel flow cross-sectional area being controlled dependent on air-throttle-valve position
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)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Description
12 エンジン
14 コントローラ
18 電子式気化器
20 ソレノイドバルブ
Claims (3)
- エンジン作業機(10)であって、
電子式気化器(18)を含むエンジン(12)と、
前記電子式気化器(18)に接続されたコントローラ(14)と、を有し、
前記電子式気化器(18)は、前記電子式気化器(18)内への燃料供給量を調整するソレノイドバルブ(20)を含み、
前記コントローラ(14)は、
前記エンジン(12)の回転数が所定の高速回転数の範囲(R1)内にあり、且つ、前記エンジン(12)の回転数が目標回転数(R2)よりも高いとき、前記ソレノイドバルブ(20)の開度を大きくするように前記ソレノイドバルブ(20)の制御値を変更し、
前記エンジン(12)の回転数が所定の高速回転数の範囲(R1)内にあり、且つ、前記エンジン(12)の回転数が目標回転数(R2)よりも低く、且つ、前記ソレノイドバルブ(20)の開度を小さくするように計算された制御計算値(VC)が、全閉よりも大きい所定の開度に対応する限界値(VL)よりも全開側にあるとき、前記ソレノイドバルブ(20)の制御値を前記制御計算値(VC)に変更し、
前記エンジン(12)の回転数が所定の高速回転数の範囲(R1)内にあり、且つ、前記エンジン(12)の回転数が目標回転数(R2)よりも低く、且つ、前記制御計算値(VC)が前記限界値と等しいかそれよりも全閉側にあるとき、前記ソレノイドバルブ(20)の制御値を前記限界値(VL)とすることを特徴とする、エンジン作業機(10)。 - 前記限界値(VL)は、領収運転時に決定された制御値(V0)に対して、前記ソレノイドバルブ(20)を閉じる方向に予め設定された値(V1)だけ変化させることによって定められることを特徴とする、請求項1に記載のエンジン作業機。
- 前記エンジン作業機は、チェーンソー、エンジンカッター、又は、ヘッジトリマーであることを特徴とする請求項1又は2に記載のエンジン作業機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015089630A JP6501396B2 (ja) | 2015-04-24 | 2015-04-24 | 手持ち式エンジン作業機 |
US15/134,013 US10415496B2 (en) | 2015-04-24 | 2016-04-20 | Handheld engine-driven working machine |
EP16166175.6A EP3085928B1 (en) | 2015-04-24 | 2016-04-20 | Handheld engine - driven working machine |
CN201610258673.6A CN106065821B (zh) | 2015-04-24 | 2016-04-22 | 手持式发动机作业机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015089630A JP6501396B2 (ja) | 2015-04-24 | 2015-04-24 | 手持ち式エンジン作業機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016205285A JP2016205285A (ja) | 2016-12-08 |
JP6501396B2 true JP6501396B2 (ja) | 2019-04-17 |
Family
ID=55970772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015089630A Active JP6501396B2 (ja) | 2015-04-24 | 2015-04-24 | 手持ち式エンジン作業機 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10415496B2 (ja) |
EP (1) | EP3085928B1 (ja) |
JP (1) | JP6501396B2 (ja) |
CN (1) | CN106065821B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6343176B2 (ja) * | 2014-05-21 | 2018-06-13 | 株式会社やまびこ | 層状掃気式2サイクルエンジン用の気化器 |
US11181052B2 (en) * | 2019-09-26 | 2021-11-23 | Setaysha Technical Solutions, Llc | Air-fuel metering for internal combustion reciprocating engines |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3822685A (en) | 1970-09-23 | 1974-07-09 | Borg Warner | Charge forming method and apparatus with overspeed governor |
US4086888A (en) * | 1976-02-27 | 1978-05-02 | Eltra Corporation | Electronic vacuum modulator for controlling air flow to a throttle modulator mechanism for limiting engine speed and vehicle speed |
JP2003343358A (ja) * | 2002-05-27 | 2003-12-03 | Zama Japan Kk | 気化器 |
US7021281B2 (en) * | 2004-07-14 | 2006-04-04 | General Motors Corporation | Engine idle control system |
CA2572595C (en) * | 2006-01-26 | 2011-03-29 | Honda Motor Co., Ltd | Engine-driven work machine |
CN101438043B (zh) | 2006-05-12 | 2012-10-10 | 胡斯华纳有限公司 | 用于调节内燃发动机的空气-燃料比率的方法 |
JP5497316B2 (ja) * | 2009-03-27 | 2014-05-21 | ヤマハモーターパワープロダクツ株式会社 | インバータ式発電機 |
DE102009031707B4 (de) | 2009-07-04 | 2021-12-23 | Andreas Stihl Ag & Co. Kg | Verfahren zum Betrieb eines Verbrennungsmotors |
JP2013024137A (ja) * | 2011-07-21 | 2013-02-04 | Hitachi Koki Co Ltd | エンジン及びエンジン作業機 |
JP5861913B2 (ja) * | 2011-11-04 | 2016-02-16 | 飯田電機工業株式会社 | 手持ち式エンジン作業機の燃料調整方法 |
DE102011120812B4 (de) * | 2011-12-10 | 2022-06-02 | Andreas Stihl Ag & Co. Kg | Verfahren zum Betrieb eines handgeführten Arbeitsgeräts |
DE102012002225A1 (de) * | 2012-02-04 | 2013-08-08 | Andreas Stihl Ag & Co. Kg | "Handgeführtes Arbeitsgerät" |
JP5747416B2 (ja) * | 2012-03-29 | 2015-07-15 | 飯田電機工業株式会社 | 手持ち式エンジン作業機の燃料調整方法 |
CN102828834B (zh) * | 2012-08-16 | 2015-05-13 | 三一重机有限公司 | 发动机功率控制方法、发动机功率控制器和控制系统 |
-
2015
- 2015-04-24 JP JP2015089630A patent/JP6501396B2/ja active Active
-
2016
- 2016-04-20 EP EP16166175.6A patent/EP3085928B1/en active Active
- 2016-04-20 US US15/134,013 patent/US10415496B2/en active Active
- 2016-04-22 CN CN201610258673.6A patent/CN106065821B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
EP3085928B1 (en) | 2019-06-05 |
CN106065821A (zh) | 2016-11-02 |
EP3085928A1 (en) | 2016-10-26 |
US20160312737A1 (en) | 2016-10-27 |
JP2016205285A (ja) | 2016-12-08 |
CN106065821B (zh) | 2020-11-27 |
US10415496B2 (en) | 2019-09-17 |
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