JPS6220145U - - Google Patents
Info
- Publication number
- JPS6220145U JPS6220145U JP11143585U JP11143585U JPS6220145U JP S6220145 U JPS6220145 U JP S6220145U JP 11143585 U JP11143585 U JP 11143585U JP 11143585 U JP11143585 U JP 11143585U JP S6220145 U JPS6220145 U JP S6220145U
- Authority
- JP
- Japan
- Prior art keywords
- oxygen concentration
- engine
- fuel ratio
- air
- detection sensor
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
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図はエンジン水温と酸素濃度検出セ
ンサの温度との関係を示すグラフ、第４図は第１
図の装置のフローチヤートである。
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。
Fig. 1 is a circuit configuration diagram of an engine air-fuel ratio control device according to the present invention, Fig. 2 is a cross-sectional view of an oxygen concentration detection sensor, and Fig. 3 is a graph showing the relationship between engine water temperature and temperature of the oxygen concentration detection sensor. , Figure 4 is the first
3 is a flowchart of the device shown in FIG. 1...Engine body, 18...Exhaust passage, 19
... Oxygen concentration detection sensor, 21 ... Control unit (control device), 31 ... Element, 32 ...
Ceramic heater.
Claims (1)
中の酸素濃度を、排気通路に設けられた電熱ヒー
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、 エンジン停止時からエンジン温度が上記設定値
まで下がる間、あるいはエンジン停止時から一定
時間の間、上記酸素濃度検出センサの電熱ヒータ
にヒータ電流を供給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] When the engine temperature is above a set value, 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, and the sensor detects oxygen concentration according to the detected output. In engines where the air-fuel ratio of the mixture is controlled to match the stoichiometric air-fuel ratio by feedback control of the fuel supply amount, the period from when the engine stops until the engine temperature drops to the above set value, or for a certain period of time after the engine stops. An air-fuel ratio control device for an engine, further comprising a control device for supplying a heater current to an electric heater of the oxygen concentration detection sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143585U JPS6220145U (en) | 1985-07-19 | 1985-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11143585U JPS6220145U (en) | 1985-07-19 | 1985-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6220145U true JPS6220145U (en) | 1987-02-06 |
Family
ID=30991355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11143585U Pending JPS6220145U (en) | 1985-07-19 | 1985-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6220145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012172592A (en) * | 2011-02-22 | 2012-09-10 | Suzuki Motor Corp | Internal combustion engine control device |
-
1985
- 1985-07-19 JP JP11143585U patent/JPS6220145U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012172592A (en) * | 2011-02-22 | 2012-09-10 | Suzuki Motor Corp | Internal combustion engine control device |
| US8939134B2 (en) | 2011-02-22 | 2015-01-27 | Suzuki Motor Corporation | Apparatus for controlling internal combustion engine |
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