JPS63162955U - - Google Patents
Info
- Publication number
- JPS63162955U JPS63162955U JP5533887U JP5533887U JPS63162955U JP S63162955 U JPS63162955 U JP S63162955U JP 5533887 U JP5533887 U JP 5533887U JP 5533887 U JP5533887 U JP 5533887U JP S63162955 U JPS63162955 U JP S63162955U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- injection amount
- fuel
- fuel injection
- 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
- 239000000446 fuel Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第1図は本考案の構成を説明するブロツク図、
第2図は本考案の一実施例の全体システム図、第
3図は同上実施例の制御フローチヤート、第4図
はトルク及び燃費率と空燃比との関係を示すグラ
フである。
1……機関本体、3……エアフローメータ、4
……デイストリビユータ、5……コントロールユ
ニツト、6……スロツトル弁、7……スロツトル
センサ、8……水温センサ、9……排気通路、1
0……空燃比センサ、11……燃料噴射弁、15
……空燃比切換スイツチ。
Figure 1 is a block diagram explaining the configuration of the present invention.
FIG. 2 is an overall system diagram of an embodiment of the present invention, FIG. 3 is a control flowchart of the same embodiment, and FIG. 4 is a graph showing the relationship between torque, fuel consumption rate, and air-fuel ratio. 1... Engine body, 3... Air flow meter, 4
... Distributor, 5 ... Control unit, 6 ... Throttle valve, 7 ... Throttle sensor, 8 ... Water temperature sensor, 9 ... Exhaust passage, 1
0... Air-fuel ratio sensor, 11... Fuel injection valve, 15
...Air-fuel ratio selector switch.
Claims (1)
料噴射量設定手段と、排気中の酸素濃度に基づい
て空燃比を検出する空燃比検出手段と、機関トル
ク重視用と燃費重視用のそれぞれの空燃比を目標
値として選択設定する目標空燃比設定手段と、検
出された実際の空燃比が選択された目標空燃比よ
りもリツチのとき目標空燃比にすべく燃料噴射量
を減量補正する燃料噴射量減量補正手段とを備え
たことを特徴とする内燃機関の空燃比制御装置。 A fuel injection amount setting means for setting the fuel injection amount according to the engine operating state, an air-fuel ratio detection means for detecting the air-fuel ratio based on the oxygen concentration in the exhaust gas, and an air-fuel ratio detection means for determining the air-fuel ratio based on the oxygen concentration in the exhaust gas. A target air-fuel ratio setting means for selectively setting a fuel ratio as a target value, and a fuel injection amount for reducing and correcting the fuel injection amount to reach the target air-fuel ratio when the detected actual air-fuel ratio is richer than the selected target air-fuel ratio. 1. An air-fuel ratio control device for an internal combustion engine, comprising a reduction correction means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5533887U JPS63162955U (en) | 1987-04-14 | 1987-04-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5533887U JPS63162955U (en) | 1987-04-14 | 1987-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63162955U true JPS63162955U (en) | 1988-10-25 |
Family
ID=30883147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5533887U Pending JPS63162955U (en) | 1987-04-14 | 1987-04-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63162955U (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5131334A (en) * | 1974-09-10 | 1976-03-17 | Nippon Denso Co | KUNENHICHOSETSUSHIKINENRYOKYOKYUSEIGYOSOCHI |
JPS5696139A (en) * | 1979-12-28 | 1981-08-04 | Hitachi Ltd | Air/fuel ratio controller for carburetor |
JPS59108833A (en) * | 1982-12-02 | 1984-06-23 | Mikuni Kogyo Co Ltd | Control device for internal-combustion engine, including means for transforming instruction signal from driver's accelerator pedal |
-
1987
- 1987-04-14 JP JP5533887U patent/JPS63162955U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5131334A (en) * | 1974-09-10 | 1976-03-17 | Nippon Denso Co | KUNENHICHOSETSUSHIKINENRYOKYOKYUSEIGYOSOCHI |
JPS5696139A (en) * | 1979-12-28 | 1981-08-04 | Hitachi Ltd | Air/fuel ratio controller for carburetor |
JPS59108833A (en) * | 1982-12-02 | 1984-06-23 | Mikuni Kogyo Co Ltd | Control device for internal-combustion engine, including means for transforming instruction signal from driver's accelerator pedal |