KR950014554A - Air-fuel ratio control device of internal combustion engine - Google Patents
Air-fuel ratio control device of internal combustion engine Download PDFInfo
- Publication number
- KR950014554A KR950014554A KR1019940028793A KR19940028793A KR950014554A KR 950014554 A KR950014554 A KR 950014554A KR 1019940028793 A KR1019940028793 A KR 1019940028793A KR 19940028793 A KR19940028793 A KR 19940028793A KR 950014554 A KR950014554 A KR 950014554A
- Authority
- KR
- South Korea
- Prior art keywords
- air
- fuel ratio
- internal combustion
- combustion engine
- oxygen sensor
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
내연기관의 공연비 흐름도 제어정도를 향상시크는 것을 목적으로 한다. 내연기관의 공연비 피드백 제어에 사용하는 산소 센서의 특성이 열화등에 의해 대 측(소 측)으로 이동했을 때 산소 센서 출력에 대응하는 공연비의 특성 도표를 대(소)출력의 편차△VR(△V1)의 함수 f(△VR)(g(△VL))을 원래의 값에서 감산(가산)해서 수정한다. 이것에 의해, 산소 센서의 출력치와 공연비의 관계가 정상으로 유지되고,The purpose of the present invention is to improve the control of the air-fuel ratio flow chart of the internal combustion engine. When the characteristics of the oxygen sensor used in the air-fuel ratio feedback control of the internal combustion engine have been moved to the large side (S side) due to the deterioration variation in the characteristic diagram of the air-fuel ratio for (small) output corresponding to the oxygen sensor output △ V R (△ The function f (ΔV R ) (g (ΔV L )) of V 1 ) is subtracted (added) from the original value and corrected. As a result, the relationship between the output value of the oxygen sensor and the air-fuel ratio is kept normal.
양호한 공연비 피드백제어를 유지할 수 있다.Good air-fuel ratio feedback control can be maintained.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명의 구성, 기능을 도시한 블럭도1 is a block diagram showing the configuration and function of the present invention.
제2도는 본 발명의 일 실시예의 구성도.2 is a block diagram of an embodiment of the present invention.
제3도는 상기 실시예에서 사웅한 산소 센서의 출력 특성의 도시도3 is a diagram showing the output characteristic of the oxygen sensor in the above embodiment.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP275722/1993 | 1993-11-04 | ||
JP27572293A JP3596011B2 (en) | 1993-11-04 | 1993-11-04 | Air-fuel ratio control device for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950014554A true KR950014554A (en) | 1995-06-16 |
KR0161699B1 KR0161699B1 (en) | 1999-01-15 |
Family
ID=17559473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940028793A KR0161699B1 (en) | 1993-11-04 | 1994-11-03 | Air fuel ratio controller for internal combustion engine |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3596011B2 (en) |
KR (1) | KR0161699B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002364423A (en) * | 2001-06-04 | 2002-12-18 | Unisia Jecs Corp | Air-fuel ratio controller for engine |
US6848439B2 (en) | 2001-11-08 | 2005-02-01 | Hitachi Unisia Automotive, Ltd. | Air-fuel ratio control apparatus, air-fuel ratio detecting apparatus and methods thereof for engine |
JP4321520B2 (en) * | 2005-12-28 | 2009-08-26 | トヨタ自動車株式会社 | POWER OUTPUT DEVICE, VEHICLE MOUNTING THE SAME, AND METHOD FOR CONTROLLING POWER OUTPUT DEVICE |
DE102012208092B4 (en) * | 2012-05-15 | 2022-02-24 | Robert Bosch Gmbh | Method and control unit for compensating for a voltage offset of a two-point lambda probe |
JP5851569B1 (en) * | 2014-08-22 | 2016-02-03 | 三菱電機株式会社 | Engine control device |
-
1993
- 1993-11-04 JP JP27572293A patent/JP3596011B2/en not_active Expired - Fee Related
-
1994
- 1994-11-03 KR KR1019940028793A patent/KR0161699B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3596011B2 (en) | 2004-12-02 |
KR0161699B1 (en) | 1999-01-15 |
JPH07127505A (en) | 1995-05-16 |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20080825 Year of fee payment: 11 |
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LAPS | Lapse due to unpaid annual fee |