JPS6466440A - Fuel supply control method after start-up of internal combustion engine - Google Patents
Fuel supply control method after start-up of internal combustion engineInfo
- Publication number
- JPS6466440A JPS6466440A JP22480887A JP22480887A JPS6466440A JP S6466440 A JPS6466440 A JP S6466440A JP 22480887 A JP22480887 A JP 22480887A JP 22480887 A JP22480887 A JP 22480887A JP S6466440 A JPS6466440 A JP S6466440A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- temperature
- sensor
- quantity increase
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To prevent an air-fuel ratio from being made lean due to fuel vapor produced after the start-up at a high temperature by setting initial fuel quantity increase value according to the engine temperature after start-up at the high temperature and then performing air-fuel ratio control with fuel quantity increase value after start-up which reduces at a specified rate and air-fuel ratio feedback correction value. CONSTITUTION:The values detected by a throttle valve opening sensor 4, intake air absolute pressure sensor 8, intake air temperature sensor 9, cooling water temperature sensor 10, engine speed sensor 11, O2 sensor 15, starter switch 15 and so on are input in an electronic control unit 5 to perform operation control for the opening time of a fuel injection valve 6. The electronic control unit 5 sets an initial fuel quantity increase value becoming larger as the temperature of cooling water lowers in cranking and reduces the initial fuel quantity increase value at a small subtraction constant when the intake air temperature is 70 deg.C or more, for example, when cranking is finished. As a result, when an internal combustion engine 1 restarts at a high temperature, the initial fuel quantity increase value is subjected to gradual subtraction, thus preventing the air fuel ratio from being made leans due to fuel vapor together with air-fuel ratio return correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22480887A JPS6466440A (en) | 1987-09-08 | 1987-09-08 | Fuel supply control method after start-up of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22480887A JPS6466440A (en) | 1987-09-08 | 1987-09-08 | Fuel supply control method after start-up of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6466440A true JPS6466440A (en) | 1989-03-13 |
Family
ID=16819529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22480887A Pending JPS6466440A (en) | 1987-09-08 | 1987-09-08 | Fuel supply control method after start-up of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6466440A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6283106B1 (en) | 1997-09-11 | 2001-09-04 | Denso Corporation | Control apparatus for internal combustion engine |
-
1987
- 1987-09-08 JP JP22480887A patent/JPS6466440A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6283106B1 (en) | 1997-09-11 | 2001-09-04 | Denso Corporation | Control apparatus for internal combustion engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5791343A (en) | Electronically controlled fuel injector for ignition internal combustion engine | |
| US4747386A (en) | Method and apparatus for augmenting fuel injection on hot restart of engine | |
| JPS6466439A (en) | Air-fuel ratio controlling method of internal combustion engine | |
| JPS6460744A (en) | Air-fuel ratio feedback control method for internal combustion engine | |
| JPS6466440A (en) | Fuel supply control method after start-up of internal combustion engine | |
| JPS5666426A (en) | Fuel injection type internal combustion engine | |
| JPS57206736A (en) | Control method and device of fuel injection timing at start of internal combustion engine | |
| JPS6445941A (en) | Air-fuel ratio feedback control method for internal combustion engine | |
| US4562819A (en) | Method and apparatus for controlling fuel supply of an internal combustion engine | |
| JPS6441637A (en) | Air-fuel ratio control device for internal combustion engine | |
| JPS5681256A (en) | Automatic starting method for diesel engine | |
| JPS6466438A (en) | Electronically controlled fuel injection device for internal combustion engine | |
| JPS6466436A (en) | Fuel supply control device of internal combustion engine | |
| JPS6473145A (en) | Fuel contorl method for electronic control type engine | |
| JPS6011652A (en) | Engine fuel injection device | |
| JPH0615829B2 (en) | Electronically controlled fuel injection device for internal combustion engine | |
| JPS6469743A (en) | Fuel feed quantity control for internal combustion engine | |
| JPS55131541A (en) | Fuel supply increasing circuit for internal combustion engine | |
| JPS6445947A (en) | Black smoke preventing device for internal combustion engine at time of acceleration | |
| JPS6232246A (en) | Fuel injection controller for internal-combustion engine | |
| JPS643249A (en) | Air-fuel ratio control device for engine | |
| JPS6460745A (en) | Air-fuel ratio control method for engine | |
| JPS6453033A (en) | Fuel injection controller for internal combustion engine | |
| JPS6463635A (en) | Fuel injection quantity control device for internal combustion engine | |
| JPS6460737A (en) | Electronically controlled fuel injection device for internal combustion engine |