JPS648339A - Controller for internal combustion engine - Google Patents
Controller for internal combustion engineInfo
- Publication number
- JPS648339A JPS648339A JP16339387A JP16339387A JPS648339A JP S648339 A JPS648339 A JP S648339A JP 16339387 A JP16339387 A JP 16339387A JP 16339387 A JP16339387 A JP 16339387A JP S648339 A JPS648339 A JP S648339A
- Authority
- JP
- Japan
- Prior art keywords
- altitude
- engine
- rotational frequency
- intake air
- air amount
- 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 Ignition Timing (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE:To correct a fuel injection amount or ignition timing for facilitating the judgement of altitude while improving controllability by searching a predetermined map and obtaining altitude on the basis of an intake air amount in the present opening of a throttle valve and the rotational frequency of an engine. CONSTITUTION:In running an engine, ECU 20 determines a fuel supply amount, ignition timing, etc. on the basis of an intake air amount detected by an air flow meter 4 and the rotational frequency of engine detected by a rotational frequency sensor 14 to control an injector 6 and ignitor 16. Then, the ECU 20 is provided with a memory for previously measuring altitude corresponding to the intake air amount in a predetermined opening of a throttle valve and a predetermined rotational frequency of engine and memorizing said altitude in the form of a map. And this map is constituted to be searched to obtain the altitude according to the intake air amount in the opening of throttle valve and the rotational frequency of engine in the actual running so that the fuel supply amount and ignition timing are corrected according to the altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16339387A JPS648339A (en) | 1987-06-30 | 1987-06-30 | Controller for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16339387A JPS648339A (en) | 1987-06-30 | 1987-06-30 | Controller for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648339A true JPS648339A (en) | 1989-01-12 |
Family
ID=15773034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16339387A Pending JPS648339A (en) | 1987-06-30 | 1987-06-30 | Controller for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058550A (en) * | 1989-06-12 | 1991-10-22 | Hitachi, Ltd. | Method for determining the control values of a multicylinder internal combustion engine and apparatus therefor |
-
1987
- 1987-06-30 JP JP16339387A patent/JPS648339A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058550A (en) * | 1989-06-12 | 1991-10-22 | Hitachi, Ltd. | Method for determining the control values of a multicylinder internal combustion engine and apparatus therefor |
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