JPS6220144U - - Google Patents
Info
- Publication number
- JPS6220144U JPS6220144U JP11143485U JP11143485U JPS6220144U JP S6220144 U JPS6220144 U JP S6220144U JP 11143485 U JP11143485 U JP 11143485U JP 11143485 U JP11143485 U JP 11143485U JP S6220144 U JPS6220144 U JP S6220144U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- engine
- oxygen concentration
- control device
- 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 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
Description
第１図は本考案に係るエンジンの空燃比制御装
置の回路構成図、第２図は酸素濃度検出センサの
断面図、第３図ａは運転累計時間とヒータ電流と
の関係を示すグラフ、第３図ｂは運転累計時間と
酸素濃度検出センサ温度との関係を示すグラフ、
第４図はヒータ電流値の制御回路図である。
１……エンジン本体、１８……排気通路、１９
……酸素濃度検出センサ、２１……コントロール
ユニツト（制御装置）、３１……素子、３２……
セラミツクヒータ、４０〜４３……制御回路。
Figure 1 is a circuit configuration diagram of an engine air-fuel ratio control device according to the present invention, Figure 2 is a sectional view of an oxygen concentration detection sensor, Figure 3a is a graph showing the relationship between cumulative operating time and heater current, and Figure 3a is a graph showing the relationship between cumulative operating time and heater current. Figure 3b is a graph showing the relationship between cumulative operating time and oxygen concentration detection sensor temperature;
FIG. 4 is a circuit diagram for controlling the heater current value. 1...Engine body, 18...Exhaust passage, 19
... Oxygen concentration detection sensor, 21 ... Control unit (control device), 31 ... Element, 32 ...
Ceramic heater, 40-43...control circuit.
Claims (1)
た電熱ヒータ付酸素濃度検出センサで検出して、
その検出出力に応じて燃料供給量をフイードバツ
ク制御することにより、混合気の空燃比を理論空
燃比に一致させるように制御するエンジンにおい
て、 エンジンの運転時間に相関する要因が大きくな
るに伴つて、上記電熱ヒータのヒータ電流値が増
大するように制御する制御装置が設けられている
ことを特徴とするエンジンの空燃比制御装置。[Scope of claim for utility model registration] The oxygen concentration in the exhaust gas is detected by an oxygen concentration detection sensor equipped with an electric heater installed in the exhaust passage,
In an engine that controls the air-fuel ratio of the air-fuel mixture to match the stoichiometric air-fuel ratio by feedback-controlling the fuel supply amount according to the detected output, as the factors that correlate with the engine operating time increase, An air-fuel ratio control device for an engine, comprising a control device that controls the heater current value of the electric heater to increase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143485U JPS6220144U (en) | 1985-07-19 | 1985-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143485U JPS6220144U (en) | 1985-07-19 | 1985-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6220144U true JPS6220144U (en) | 1987-02-06 |
Family
ID=30991353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11143485U Pending JPS6220144U (en) | 1985-07-19 | 1985-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6220144U (en) |
-
1985
- 1985-07-19 JP JP11143485U patent/JPS6220144U/ja active Pending
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