JPS6460737A - Electronically controlled fuel injection device for internal combustion engine - Google Patents
Electronically controlled fuel injection device for internal combustion engineInfo
- Publication number
- JPS6460737A JPS6460737A JP21519487A JP21519487A JPS6460737A JP S6460737 A JPS6460737 A JP S6460737A JP 21519487 A JP21519487 A JP 21519487A JP 21519487 A JP21519487 A JP 21519487A JP S6460737 A JPS6460737 A JP S6460737A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- air
- injection quantity
- time
- fuel
- 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
- 239000000446 fuel Substances 0.000 title abstract 8
- 238000002347 injection Methods 0.000 title abstract 6
- 239000007924 injection Substances 0.000 title abstract 6
- 238000002485 combustion reaction Methods 0.000 title 1
- 239000000498 cooling water Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To improve the startability at highland by correcting the basic fuel injection quantity set according to the engine temperature at the time of start-up by an altitude learning correction factor. CONSTITUTION:Signals from a cooling water temperature sensor 18 and O2 sensor 20 are input to a control device 14, and a fuel correction factor is learned while the injection quantity of a fuel injection valve 6 is controlled in such a manner that the air-fuel ratio of air-fuel mixture becomes a designated value. When the start time is detected according to a signal from a start switch 23, the start-up time basic fuel injection quantity according to the cooling water temperature is read out from a map and corrected by a uniform learning correction factor stored by learning. Thus, even at highland, a lowering of air density is corrected to decrease the injection quantity at the time of start-up to prevent overrich of air-fuel ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21519487A JPS6460737A (en) | 1987-08-31 | 1987-08-31 | Electronically controlled fuel injection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21519487A JPS6460737A (en) | 1987-08-31 | 1987-08-31 | Electronically controlled fuel injection device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6460737A true JPS6460737A (en) | 1989-03-07 |
Family
ID=16668240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21519487A Pending JPS6460737A (en) | 1987-08-31 | 1987-08-31 | Electronically controlled fuel injection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6460737A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172551A (en) * | 1989-12-01 | 1991-07-25 | Fuji Heavy Ind Ltd | Starting injection quantity controller of two-cycle engine |
| CN102691585A (en) * | 2011-03-24 | 2012-09-26 | 株式会社京浜 | Motor control apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6050250A (en) * | 1983-08-30 | 1985-03-19 | Toyota Motor Corp | Method of controlling air-fuel ratio |
| JPS614841A (en) * | 1984-06-18 | 1986-01-10 | Honda Motor Co Ltd | Fuel feed control under cranking of internal-combustion engine |
| JPS6140442A (en) * | 1984-08-01 | 1986-02-26 | Fuji Heavy Ind Ltd | Start control device in fuel injection type engine |
-
1987
- 1987-08-31 JP JP21519487A patent/JPS6460737A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6050250A (en) * | 1983-08-30 | 1985-03-19 | Toyota Motor Corp | Method of controlling air-fuel ratio |
| JPS614841A (en) * | 1984-06-18 | 1986-01-10 | Honda Motor Co Ltd | Fuel feed control under cranking of internal-combustion engine |
| JPS6140442A (en) * | 1984-08-01 | 1986-02-26 | Fuji Heavy Ind Ltd | Start control device in fuel injection type engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172551A (en) * | 1989-12-01 | 1991-07-25 | Fuji Heavy Ind Ltd | Starting injection quantity controller of two-cycle engine |
| CN102691585A (en) * | 2011-03-24 | 2012-09-26 | 株式会社京浜 | Motor control apparatus |
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