JPS61199664U - - Google Patents
Info
- Publication number
- JPS61199664U JPS61199664U JP8508985U JP8508985U JPS61199664U JP S61199664 U JPS61199664 U JP S61199664U JP 8508985 U JP8508985 U JP 8508985U JP 8508985 U JP8508985 U JP 8508985U JP S61199664 U JPS61199664 U JP S61199664U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- ratio sensor
- correction coefficient
- detection result
- 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 22
- 238000001514 detection method Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Description
第１図は本考案の基本概念図である。第２図〜
第９図は本考案の空燃比検出装置の第１実施例を
示す図であり、第２図はその全体構成図、第３図
はその空燃比センサの分解斜視図、第４図はその
空燃比センサの断面図、第５図はそのコトロール
ユニツトのブロツク図、第６図はその空燃比検出
回路の回路図、第７図はその空燃比検出回路の検
出電圧と空燃比との関係を示す図、第８図はその
補正係数演算プログラムのフローチヤート、第９
図はその作用を説明するための検出電圧と空燃比
の関係を示す図である。
第１０，１１図は本考案の空燃比検出装置の第
２実施例を示す図であり、第１０図はその補正係
数演算プログラムのフローチヤート、第１１図は
その作用を説明するための検出電圧と空燃比の関
係を示す図である。第１２図は本考案の空燃比検
出装置の第３実施例の空燃比センサの断面図であ
る。
１……内燃機関、６……空燃比センサ、１２…
…コントロールユニツト（減速状態判別手段、設
定手段、補正係数演算手段、補正手段）。
FIG. 1 is a basic conceptual diagram of the present invention. Figure 2~
FIG. 9 is a diagram showing the first embodiment of the air-fuel ratio detection device of the present invention, FIG. 2 is its overall configuration, FIG. 3 is an exploded perspective view of its air-fuel ratio sensor, and FIG. 4 is its air-fuel ratio sensor. A cross-sectional view of the fuel ratio sensor, FIG. 5 is a block diagram of its control unit, FIG. 6 is a circuit diagram of its air-fuel ratio detection circuit, and FIG. 7 shows the relationship between the detection voltage of the air-fuel ratio detection circuit and the air-fuel ratio. Figure 8 is a flowchart of the correction coefficient calculation program, and Figure 9 is a flowchart of the correction coefficient calculation program.
The figure is a diagram showing the relationship between the detected voltage and the air-fuel ratio to explain its effect. 10 and 11 are diagrams showing a second embodiment of the air-fuel ratio detection device of the present invention, FIG. 10 is a flowchart of its correction coefficient calculation program, and FIG. 11 is a diagram showing the detection voltage for explaining its operation. FIG. FIG. 12 is a sectional view of an air-fuel ratio sensor according to a third embodiment of the air-fuel ratio detection device of the present invention. 1... Internal combustion engine, 6... Air-fuel ratio sensor, 12...
...Control unit (deceleration state determination means, setting means, correction coefficient calculation means, correction means).
Claims (1)
段と、 (b) 減速時に燃料噴射気筒数を多段的に変化さ
せる内燃機関の排気の空燃比を検出する空燃比セ
ンサと、 (c) 減速時、各気筒の供給空燃比を所定の一定
値に設定する設定手段と、 (d) 減速時、全気筒噴射時の空燃比センサの検
出結果と、所定の気筒のみ噴射されている時の空
燃比センサの検出結果と、に基づいて補正係数を
演算する補正係数演算手段と、 (e) 該補正係数に基づいて空燃比センサの検出
結果を補正する補正手段と、 を備えたことを特徴とする空燃比検出装置。[Scope of Claim for Utility Model Registration] (a) A deceleration state determining means for determining the deceleration state of the engine; (b) An air-fuel ratio detecting device for detecting the air-fuel ratio of the exhaust gas of an internal combustion engine that changes the number of fuel injection cylinders in multiple stages during deceleration. a fuel ratio sensor; (c) a setting means for setting the supply air-fuel ratio of each cylinder to a predetermined constant value during deceleration; and (d) a detection result of the air-fuel ratio sensor during deceleration and all cylinder injection, and (e) correction coefficient calculation means for calculating a correction coefficient based on the detection result of the air-fuel ratio sensor when only the air-fuel ratio sensor is injected; and (e) correction means for correcting the detection result of the air-fuel ratio sensor based on the correction coefficient. An air-fuel ratio detection device comprising: .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8508985U JPS61199664U (en) | 1985-06-04 | 1985-06-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8508985U JPS61199664U (en) | 1985-06-04 | 1985-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61199664U true JPS61199664U (en) | 1986-12-13 |
Family
ID=30635162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8508985U Pending JPS61199664U (en) | 1985-06-04 | 1985-06-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61199664U (en) |
-
1985
- 1985-06-04 JP JP8508985U patent/JPS61199664U/ja active Pending