JPS63108543U - - Google Patents
Info
- Publication number
- JPS63108543U JPS63108543U JP29387U JP29387U JPS63108543U JP S63108543 U JPS63108543 U JP S63108543U JP 29387 U JP29387 U JP 29387U JP 29387 U JP29387 U JP 29387U JP S63108543 U JPS63108543 U JP S63108543U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- engine
- detection means
- injection amount
- nitrogen oxide
- 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 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 12
- 238000001514 detection method Methods 0.000 claims 5
- 230000001133 acceleration Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第1図は本考案の構成図、第2図は本考案の一
実施例を示すシステム図、第3図〜第5図は同上
実施例における燃料噴射量設定制御を示すフロー
チヤート、第6図は酸素センサ出力電圧と空燃
比との関係を示すグラフ、第7図は同上実施例の
効果を説明するためのタイムチヤート、第8図は
各種排気成分と空燃比との関係を示すグラフ、第
9図は三元触媒を用いた排気浄化装置による各種
排気成分の転化率と空燃比との関係を示すグラフ
である。
1……機関、6……エアフローメータ、9……
燃料噴射弁、14……クランク角センサ、20…
…酸素センサ、30……コントロールユニツト。
Fig. 1 is a configuration diagram of the present invention, Fig. 2 is a system diagram showing an embodiment of the invention, Figs. 3 to 5 are flowcharts showing fuel injection amount setting control in the above embodiment, and Fig. 6 7 is a graph showing the relationship between the oxygen sensor output voltage and the air-fuel ratio, FIG. 7 is a time chart for explaining the effect of the above embodiment, and FIG. 8 is a graph showing the relationship between various exhaust components and the air-fuel ratio. FIG. 9 is a graph showing the relationship between the conversion rate of various exhaust components and the air-fuel ratio by an exhaust gas purification device using a three-way catalyst. 1... Engine, 6... Air flow meter, 9...
Fuel injection valve, 14... Crank angle sensor, 20...
...Oxygen sensor, 30...Control unit.
Claims (1)
を少なくとも含む機関運転状態を検出する機関運
転状態検出手段と、機関排気中の窒素酸化物濃度
を検出する窒素酸化物濃度検出手段と、前記機関
運転状態検出手段によつて検出された前記パラメ
ータに基づいて燃料噴射量を設定する燃料噴射量
設定手段と、機関の加速後の所定高負荷状態を検
出する機関高負荷状態検出手段と、該所定高負荷
状態が検出されたときに前記窒素酸化物濃度検出
手段により検出された窒素酸化物濃度の増大に応
じて前記燃料噴射量を増量補正して設定する燃料
噴射量増量設定手段と、設定された燃料噴射量に
応じて燃料噴射弁を駆動制御する燃料噴射弁駆動
制御手段と、を備えてなる内燃機関の電子制御燃
料噴射装置。 an engine operating state detection means for detecting an engine operating state including at least a parameter related to the amount of air taken into the engine; a nitrogen oxide concentration detection means for detecting a nitrogen oxide concentration in engine exhaust; a fuel injection amount setting means for setting a fuel injection amount based on the parameter detected by the detection means; an engine high load state detection means for detecting a predetermined high load state after acceleration of the engine; and the predetermined high load. fuel injection amount increase setting means for increasing and setting the fuel injection amount in accordance with an increase in the nitrogen oxide concentration detected by the nitrogen oxide concentration detection means when a state is detected; An electronically controlled fuel injection device for an internal combustion engine, comprising: fuel injection valve drive control means for driving and controlling a fuel injection valve according to an injection amount.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29387U JPS63108543U (en) | 1987-01-07 | 1987-01-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29387U JPS63108543U (en) | 1987-01-07 | 1987-01-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63108543U true JPS63108543U (en) | 1988-07-13 |
Family
ID=30777131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29387U Pending JPS63108543U (en) | 1987-01-07 | 1987-01-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63108543U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128944A (en) * | 1983-01-14 | 1984-07-25 | Nippon Soken Inc | Air-fuel ratio controller for internal-combustion engine |
JPS61279749A (en) * | 1985-06-06 | 1986-12-10 | Nippon Denso Co Ltd | Air-fuel ratio control unit |
-
1987
- 1987-01-07 JP JP29387U patent/JPS63108543U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59128944A (en) * | 1983-01-14 | 1984-07-25 | Nippon Soken Inc | Air-fuel ratio controller for internal-combustion engine |
JPS61279749A (en) * | 1985-06-06 | 1986-12-10 | Nippon Denso Co Ltd | Air-fuel ratio control unit |
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