JPH0522846B2 - - Google Patents
Info
- Publication number
- JPH0522846B2 JPH0522846B2 JP59079642A JP7964284A JPH0522846B2 JP H0522846 B2 JPH0522846 B2 JP H0522846B2 JP 59079642 A JP59079642 A JP 59079642A JP 7964284 A JP7964284 A JP 7964284A JP H0522846 B2 JPH0522846 B2 JP H0522846B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- burn
- sensing element
- temperature sensing
- air flow
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 claims description 35
- 238000005259 measurement Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 description 19
- 239000000446 fuel Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59079642A JPS60224025A (ja) | 1984-04-20 | 1984-04-20 | 熱式空気流量測定装置 |
| US06/723,894 US4565091A (en) | 1984-04-20 | 1985-04-16 | Apparatus for measuring the quantity of airflow passing through an intake passage of an engine |
| DE8585104716T DE3567102D1 (en) | 1984-04-20 | 1985-04-18 | An apparatus for measuring the quantity of airflow passing through an intake passage of an engine |
| EP85104716A EP0162293B1 (en) | 1984-04-20 | 1985-04-18 | An apparatus for measuring the quantity of airflow passing through an intake passage of an engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59079642A JPS60224025A (ja) | 1984-04-20 | 1984-04-20 | 熱式空気流量測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60224025A JPS60224025A (ja) | 1985-11-08 |
| JPH0522846B2 true JPH0522846B2 (en]) | 1993-03-30 |
Family
ID=13695754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59079642A Granted JPS60224025A (ja) | 1984-04-20 | 1984-04-20 | 熱式空気流量測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60224025A (en]) |
-
1984
- 1984-04-20 JP JP59079642A patent/JPS60224025A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60224025A (ja) | 1985-11-08 |
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