JPS5540223A - Engine intake air measuring device - Google Patents
Engine intake air measuring deviceInfo
- Publication number
- JPS5540223A JPS5540223A JP11224978A JP11224978A JPS5540223A JP S5540223 A JPS5540223 A JP S5540223A JP 11224978 A JP11224978 A JP 11224978A JP 11224978 A JP11224978 A JP 11224978A JP S5540223 A JPS5540223 A JP S5540223A
- Authority
- JP
- Japan
- Prior art keywords
- intake air
- pressure
- intake pipe
- amount
- engine
- 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
Landscapes
- Measuring Volume Flow (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE: To detect the amount of intake air with high accuracy in the full operational region of engine by using two kinds of flow meters while compensating for their drawbacks mutually.
CONSTITUTION: The pressure of intake pipe is measured by the pressure converter 13 connected to the intake pipe 1 through the orifice 9 and the damper room 11, and the output is sent to the microcomputer 7 to calculate exhaust recycling rate from parameters of the cooling water temperature, engine revolving number, etc. And, when the exhaust recycling rate is zero and the pressure of the intake pipe is comparatively high, the amount of intake air is obtained from the pressure of the intake pipe and the revolving number of engine. On the other hand, in case where exhaust recycling is made, the amount of intake air is obtained from the data (output of differential converter 22) of Venturi meter. In addition, even in the case where the exhaust recycling rate is zero and the intake pipe pressure is compratively high, the amount of intake air is obtained from the signal of the Venturi meter.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11224978A JPS5540223A (en) | 1978-09-14 | 1978-09-14 | Engine intake air measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11224978A JPS5540223A (en) | 1978-09-14 | 1978-09-14 | Engine intake air measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5540223A true JPS5540223A (en) | 1980-03-21 |
Family
ID=14581970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11224978A Pending JPS5540223A (en) | 1978-09-14 | 1978-09-14 | Engine intake air measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5540223A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047634A (en) * | 1983-08-24 | 1985-03-15 | Maki Seisakusho:Kk | Method for sterilizing and preventing degradation of fruit |
| US4599694A (en) * | 1984-06-07 | 1986-07-08 | Ford Motor Company | Hybrid airflow measurement |
| JPS61192838A (en) * | 1985-01-14 | 1986-08-27 | フオ−ド、モ−タ−、カンパニ− | Engine control apparatus and determination of mass flow amount |
| JPS62111139A (en) * | 1985-11-08 | 1987-05-22 | Fujitsu Ten Ltd | Electronically controlled fuel injector |
| JPS63248339A (en) * | 1987-04-03 | 1988-10-14 | Kisuke Iwai | Method for preserving leaf of magnolia obovata thunb. |
| JPS6420068A (en) * | 1987-07-15 | 1989-01-24 | Niigata Prefecture | Method for treating raw welsh onions |
| EP1239143A2 (en) * | 2001-03-09 | 2002-09-11 | Mikuni Corporation | Pressure sampling device for sampling an internal pressure of an intake pipe of a combustion engine |
-
1978
- 1978-09-14 JP JP11224978A patent/JPS5540223A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6047634A (en) * | 1983-08-24 | 1985-03-15 | Maki Seisakusho:Kk | Method for sterilizing and preventing degradation of fruit |
| JPH0342861B2 (en) * | 1983-08-24 | 1991-06-28 | ||
| US4599694A (en) * | 1984-06-07 | 1986-07-08 | Ford Motor Company | Hybrid airflow measurement |
| JPS61192838A (en) * | 1985-01-14 | 1986-08-27 | フオ−ド、モ−タ−、カンパニ− | Engine control apparatus and determination of mass flow amount |
| JPS62111139A (en) * | 1985-11-08 | 1987-05-22 | Fujitsu Ten Ltd | Electronically controlled fuel injector |
| JPS63248339A (en) * | 1987-04-03 | 1988-10-14 | Kisuke Iwai | Method for preserving leaf of magnolia obovata thunb. |
| JPS6420068A (en) * | 1987-07-15 | 1989-01-24 | Niigata Prefecture | Method for treating raw welsh onions |
| JPH047663B2 (en) * | 1987-07-15 | 1992-02-12 | Niigata Prefecture | |
| EP1239143A2 (en) * | 2001-03-09 | 2002-09-11 | Mikuni Corporation | Pressure sampling device for sampling an internal pressure of an intake pipe of a combustion engine |
| EP1239143A3 (en) * | 2001-03-09 | 2007-03-14 | Mikuni Corporation | Pressure sampling device for sampling an internal pressure of an intake pipe of a combustion engine |
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