JPS6415449A - Air-fuel ratio learning control device for engine - Google Patents
Air-fuel ratio learning control device for engineInfo
- Publication number
- JPS6415449A JPS6415449A JP62171378A JP17137887A JPS6415449A JP S6415449 A JPS6415449 A JP S6415449A JP 62171378 A JP62171378 A JP 62171378A JP 17137887 A JP17137887 A JP 17137887A JP S6415449 A JPS6415449 A JP S6415449A
- Authority
- JP
- Japan
- Prior art keywords
- air flow
- learning
- air
- injector
- fuel ratio
- 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.)
- Granted
Links
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To obtain the invariably correct control by performing the learning correction of the injector coefficient indicating the characteristic of an injector in the medium flow area of the air flow and performing the learning correction of the characteristic of an air flow sensor in the other flow area. CONSTITUTION:The basic fuel injection time is determined based on the detection signal of an air flow detecting means 1000 such as a hot-wire type air flow sensor, the feedback air fuel ratio detection signal and injector coefficient are applied to this basic fuel injection time as the correction coefficient, thereby the theoretical air-fuel ratio is calculated. In this control device, a learning switching means 3000 is driven in response to the magnitude of the detected air flow, and a learning means 3500 is activated to perform the learning correction of the injector coefficient in the medium flow area, on the other hand a learning means 3600 is activated in the other air flow area, and the learning correction of the characteristic of the air flow sensor 1000 is performed with the learning-corrected injector coefficient.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17137887A JPH06100126B2 (en) | 1987-07-09 | 1987-07-09 | Engine air-fuel ratio learning control device |
US07/215,815 US4991102A (en) | 1987-07-09 | 1988-07-06 | Engine control system using learning control |
GB8816203A GB2207779B (en) | 1987-07-09 | 1988-07-07 | Engine control system using learning control |
KR1019880008489A KR0123561B1 (en) | 1987-07-09 | 1988-07-08 | Engine control system using learning control |
DE3823277A DE3823277A1 (en) | 1987-07-09 | 1988-07-08 | ENGINE CONTROL SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17137887A JPH06100126B2 (en) | 1987-07-09 | 1987-07-09 | Engine air-fuel ratio learning control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6415449A true JPS6415449A (en) | 1989-01-19 |
JPH06100126B2 JPH06100126B2 (en) | 1994-12-12 |
Family
ID=15922069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17137887A Expired - Lifetime JPH06100126B2 (en) | 1987-07-09 | 1987-07-09 | Engine air-fuel ratio learning control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06100126B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4992822A (en) * | 1986-04-01 | 1991-02-12 | Brother Kogyo Kabushiki Kaisha | Optical printing system |
US5722705A (en) * | 1995-06-24 | 1998-03-03 | Nec Corporation | Lock structure for cover of electronic appliance |
-
1987
- 1987-07-09 JP JP17137887A patent/JPH06100126B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4992822A (en) * | 1986-04-01 | 1991-02-12 | Brother Kogyo Kabushiki Kaisha | Optical printing system |
US5722705A (en) * | 1995-06-24 | 1998-03-03 | Nec Corporation | Lock structure for cover of electronic appliance |
Also Published As
Publication number | Publication date |
---|---|
JPH06100126B2 (en) | 1994-12-12 |
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