JPS643250A - Air-fuel ratio control device for engine - Google Patents
Air-fuel ratio control device for engineInfo
- Publication number
- JPS643250A JPS643250A JP16034687A JP16034687A JPS643250A JP S643250 A JPS643250 A JP S643250A JP 16034687 A JP16034687 A JP 16034687A JP 16034687 A JP16034687 A JP 16034687A JP S643250 A JPS643250 A JP S643250A
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- correction amount
- sensor
- learning
- 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
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To prevent false learning due to temperature characteristics of an engine by prohibiting updating of a learning value corresponding to the air-fuel ratio feedback correction amount based on output of an air-fuel ratio sensor until a designated time elapses after the cooling water temperature reaches above a preset value. CONSTITUTION:Detection values of an intake pressure sensor 6, a cooling water temperature sensor 7, an air-fuel sensor 8 and so on and a signal of an igniter 12 are input to a control device 14. That is, the basic fuel injection quantity is computed from a number of rotations and intake pressure and correction is conducted by the air-fuel ratio feedback correction amount based on the detection value of the air-fuel ratio sensor 9 and the learning correction amount set corresponding to the number of rotations and intake pressure. Updating of the learning correction amount is prohibited until a designated time elapses after the cooling water temperature reaches above a designated value from start-up.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160346A JP2741759B2 (en) | 1987-06-26 | 1987-06-26 | Home video game toys and similar products |
DE3821455A DE3821455A1 (en) | 1987-06-26 | 1988-06-24 | FUEL-AIR MIXER REGULATOR |
KR1019880007649A KR940002958B1 (en) | 1987-06-26 | 1988-06-24 | Air-fuel ratio controller |
US07/386,169 US5043901A (en) | 1987-06-26 | 1989-07-28 | Air-fuel ratio controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160346A JP2741759B2 (en) | 1987-06-26 | 1987-06-26 | Home video game toys and similar products |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS643250A true JPS643250A (en) | 1989-01-09 |
JP2741759B2 JP2741759B2 (en) | 1998-04-22 |
Family
ID=15712997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62160346A Expired - Lifetime JP2741759B2 (en) | 1987-06-26 | 1987-06-26 | Home video game toys and similar products |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2741759B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5447644B2 (en) * | 2010-02-26 | 2014-03-19 | トヨタ自動車株式会社 | Control device for internal combustion engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813130A (en) * | 1981-07-15 | 1983-01-25 | Nippon Denso Co Ltd | Air-fuel ratio control method |
-
1987
- 1987-06-26 JP JP62160346A patent/JP2741759B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813130A (en) * | 1981-07-15 | 1983-01-25 | Nippon Denso Co Ltd | Air-fuel ratio control method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5447644B2 (en) * | 2010-02-26 | 2014-03-19 | トヨタ自動車株式会社 | Control device for internal combustion engine |
US9234466B2 (en) | 2010-02-26 | 2016-01-12 | Toyota Jidosha Kabushiki Kaisha | Device for controlling internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JP2741759B2 (en) | 1998-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080130 Year of fee payment: 10 |