JPS62155318U - - Google Patents
Info
- Publication number
- JPS62155318U JPS62155318U JP1986043299U JP4329986U JPS62155318U JP S62155318 U JPS62155318 U JP S62155318U JP 1986043299 U JP1986043299 U JP 1986043299U JP 4329986 U JP4329986 U JP 4329986U JP S62155318 U JPS62155318 U JP S62155318U
- Authority
- JP
- Japan
- Prior art keywords
- intake air
- air amount
- internal combustion
- combustion engine
- hot wire
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
- F02D41/187—Circuit arrangements for generating control signals by measuring intake air flow using a hot wire flow sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
- G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
- G01F1/6983—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters adapted for burning-off deposits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/696—Circuits therefor, e.g. constant-current flow meters
- G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
- G01F1/6986—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters with pulsed heating, e.g. dynamic methods
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
第1図は本考案の構成図、第2図は本考案の実
施例を示す構成図、第3図は熱線流量計の電気回
路図、第4図は制御動作を示すフローチヤート、
第5図は同じくタイムチヤート、第6図は従来例
の構成図、第7図は同じくその制御動作を示すタ
イムチヤートである。 1……機関本体、2……吸気通路、3……吸気
絞弁、4……熱線、6……燃料噴射弁、10……
制御回路、11,12,13,14,17……抵
抗、15……比較器、16,18……トランジス
タ、20……イグニツシヨンスイツチ。
施例を示す構成図、第3図は熱線流量計の電気回
路図、第4図は制御動作を示すフローチヤート、
第5図は同じくタイムチヤート、第6図は従来例
の構成図、第7図は同じくその制御動作を示すタ
イムチヤートである。 1……機関本体、2……吸気通路、3……吸気
絞弁、4……熱線、6……燃料噴射弁、10……
制御回路、11,12,13,14,17……抵
抗、15……比較器、16,18……トランジス
タ、20……イグニツシヨンスイツチ。
Claims (1)
- 内燃機関の吸気通路に張設した熱線と、この熱
線温度が一定になるように電流を供給する手段と
、この電流値に基づいて吸気量を求める吸気量検
出手段とからなる内燃機関の吸入空気量測定装置
において、機関の停止状態を検出する手段と、こ
の停止検出後に前記吸気量検出手段の出力に基づ
いて吸気量が零もしくは零に近い所定値に達した
ことを判定する手段と、この判定直後に前記熱線
に焼却用電流を所定の時間だけ供給する手段とを
備えたことを特徴とする内燃機関の吸入空気量測
定装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986043299U JPS62155318U (ja) | 1986-03-25 | 1986-03-25 | |
US07/022,081 US4771632A (en) | 1986-03-25 | 1987-03-05 | Self-cleaning arrangement for automotive hot wire type air flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986043299U JPS62155318U (ja) | 1986-03-25 | 1986-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62155318U true JPS62155318U (ja) | 1987-10-02 |
Family
ID=12659910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1986043299U Pending JPS62155318U (ja) | 1986-03-25 | 1986-03-25 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4771632A (ja) |
JP (1) | JPS62155318U (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4022207A1 (de) * | 1990-07-12 | 1992-01-16 | Bosch Gmbh Robert | Einrichtung zum freibrennen eines zu messzwecken dienenden widerstands |
US5383357A (en) * | 1993-12-20 | 1995-01-24 | Doll; John A. | Mass air flow sensor device |
JP3216001B2 (ja) * | 1995-08-08 | 2001-10-09 | 株式会社ユニシアジェックス | 内燃機関の感温式流量検出装置 |
JP3828794B2 (ja) * | 2001-12-05 | 2006-10-04 | 株式会社日立製作所 | 空気流量測定装置 |
JP5609827B2 (ja) * | 2011-09-07 | 2014-10-22 | 株式会社デンソー | 空気流量測定装置 |
JP5477358B2 (ja) * | 2011-10-31 | 2014-04-23 | 株式会社デンソー | 空気流量測定装置 |
CZ2013672A3 (cs) * | 2013-09-03 | 2014-10-22 | ÄŚeskĂ© vysokĂ© uÄŤenĂ technickĂ© v Praze, Fakulta strojnĂ, Ăšstav mechaniky tekutin a termodynamiky | Průtokoměr |
DE102017216657A1 (de) * | 2017-09-20 | 2019-03-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Steuern eines Heizelements zum Beheizen eines Sensorelements eines Luftmassensensors für ein Fahrzeug und Luftmassensensorsystem für ein Fahrzeug |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2927378A1 (de) * | 1979-07-06 | 1981-01-29 | Bosch Gmbh Robert | Einrichtung zum freibrennen eines zu messzwecken dienenden widerstandes |
DE3037340C2 (de) * | 1979-10-03 | 1985-07-18 | Hitachi, Ltd., Tokio/Tokyo | Treiber für Hitzdraht-Luftmengenmesser |
DE3022685A1 (de) * | 1980-06-18 | 1982-01-07 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zur durchflussmassenmessung bei einer brennkraftmaschine |
JPS5920813A (ja) * | 1982-07-27 | 1984-02-02 | Nissan Motor Co Ltd | 熱線型空気流量計の制御装置 |
-
1986
- 1986-03-25 JP JP1986043299U patent/JPS62155318U/ja active Pending
-
1987
- 1987-03-05 US US07/022,081 patent/US4771632A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4771632A (en) | 1988-09-20 |