KR19990050677A - 연료 분사량 제어방법 - Google Patents
연료 분사량 제어방법 Download PDFInfo
- Publication number
- KR19990050677A KR19990050677A KR1019970069811A KR19970069811A KR19990050677A KR 19990050677 A KR19990050677 A KR 19990050677A KR 1019970069811 A KR1019970069811 A KR 1019970069811A KR 19970069811 A KR19970069811 A KR 19970069811A KR 19990050677 A KR19990050677 A KR 19990050677A
- Authority
- KR
- South Korea
- Prior art keywords
- vehicle
- fuel
- feedback control
- fuel injection
- determined
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 60
- 238000002347 injection Methods 0.000 title claims description 25
- 239000007924 injection Substances 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0223—Cooling water temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0404—Throttle position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0625—Fuel consumption, e.g. measured in fuel liters per 100 kms or miles per gallon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/501—Vehicle speed
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
Description
Claims (7)
- 차량의 상태를 검출하여 초기시동 상태라고 판단되면 피이드 백 제어를 실행하지 않는 단계;초기시동 상태가 아니라고 판단되면 차량의 운행정보를 검출하여 차량이 정속 주행 상태인지를 판단하는 단계;차량이 정속 주행 상태라고 판단되면 피이드 백 제어를 실행하지 않고 메모리 테이블에 설정되어 있는 설정값에 따라 공연비를 일정값 이상으로 상승시켜 연료량을 분사하는 단계로 이루어지는 것을 특징으로 하는 연료 분사량 제어방법.
- 청구항 1에 있어서, 차량의 상태를 검출하여 산소센서가 활성화되었는지를 판단하여 산소센서가 활성화되었다고 판단되면 냉각수의 온도가 일정온도 이상 검출되는지를 판단하는 단계;냉각수의 온도가 일정온도 이상 검출되면 운행되는 차량의 차속, 차속변화율, 및 스로틀 밸브 개도율을 검출하여 차속이 일정속도 이상이며, 차속의 변화율이 일정속도 이하이며, 스로틀 밸브 개도량이 일정값 이하로 일정시간 경과하였다고 판단되면 피이드 백 제어를 실행하지 않고 공연비를 일정값 이상으로 상승시켜 연료량을 분사하는 단계로 이루어지는 것을 특징으로 하는 연료 분사량 제어방법.
- 청구항 2에 있어서, 산소센서가 활성화되지 않으면 피이드 백 제어를 실행하지 않는 단계를 포함하는 연료 분사량 제어방법.
- 청구항 2에 있어서, 냉각수의 온도가 일정값 이하라고 판단되면 피이드 백 제어를 실행하지 않는 단계를 포함하는 연료 분사량 제어방법.
- 청구항 2에 있어서, 차속이 일정속도 이하이며, 차속의 변화율이 일정속도 이상이며, 스로틀 밸브의 개도율 변화량이 일정값 이상이라고 판단되면 피이드 백 제어를 실행하는 단계를 포함하는 연료 분사량 제어방법.
- 청구항 2에 있어서, 정속 주행 상태일 경우의 연료 분사량은 아래의 식과 같이 연산하는 단계를 포함하는 연료 분사량 제어방법.
Ti =TB×K (여기서,Ti TB K - 청구항 3과 4에 있어서, 피이드 백 제어를 실행하지 않으면 아래의 수학식에 따라 연료량을 연산하는 단계를 포함하는 연료 분사량 제어방법.
Ti= TB 여기서,Ti TB
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970069811A KR100305807B1 (ko) | 1997-12-17 | 1997-12-17 | 연료분사량제어방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970069811A KR100305807B1 (ko) | 1997-12-17 | 1997-12-17 | 연료분사량제어방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990050677A true KR19990050677A (ko) | 1999-07-05 |
KR100305807B1 KR100305807B1 (ko) | 2001-12-17 |
Family
ID=37530207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970069811A KR100305807B1 (ko) | 1997-12-17 | 1997-12-17 | 연료분사량제어방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100305807B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016073811A1 (en) * | 2014-11-06 | 2016-05-12 | Walbro Engine Management, L.L.C. | Engine control strategy |
-
1997
- 1997-12-17 KR KR1019970069811A patent/KR100305807B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR100305807B1 (ko) | 2001-12-17 |
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