JPS6450339U - - Google Patents
Info
- Publication number
- JPS6450339U JPS6450339U JP14592887U JP14592887U JPS6450339U JP S6450339 U JPS6450339 U JP S6450339U JP 14592887 U JP14592887 U JP 14592887U JP 14592887 U JP14592887 U JP 14592887U JP S6450339 U JPS6450339 U JP S6450339U
- Authority
- JP
- Japan
- Prior art keywords
- fractal dimension
- air
- calculating
- fuel ratio
- flame
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Testing Of Engines (AREA)
Description
第１図は本考案の基本概念図、第２〜１１図は
本考案の一実施例を示す図であり、第２図はその
全体構成図、第３図はその高速演算回路の内部を
示すブロツク構成図、第４図はそのフラクタル次
元演算回路の内部を示すブロツク構成図、第５図
はそのフラクタル次元変化量演算回路の内部を示
すブロツク構成図、第６，７図はそのフラクタル
の概念を説明するための図、第８図はそのフラク
タル次元の時間的変化を示す特性図、第９図はそ
の火炎伝搬時間と空燃比との関係を示す特性図、
第１０図はその空燃比検出のプログラムを示すフ
ローチヤート、第１１図はその画像処理の作用を
説明するための図、第１２図は従来の空燃比検出
装置の吸入空気量の測定方法を示す図である。
１４……燃焼室、３０……火炎状態検出手段、
３８……フラクタル次元演算回路（フラクタル次
元演算手段）、４３……フラクタル次元変化量演
算回路（伝搬速度演算手段）、４８……空燃比推
定回路（空燃比演算手段）。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 11 are diagrams showing an embodiment of the invention, Fig. 2 is its overall configuration diagram, and Fig. 3 shows the inside of its high-speed arithmetic circuit. Figure 4 is a block diagram showing the inside of the fractal dimension calculation circuit, Figure 5 is a block diagram showing the inside of the fractal dimension variation calculation circuit, and Figures 6 and 7 are the fractal concept. FIG. 8 is a characteristic diagram showing the temporal change of the fractal dimension, FIG. 9 is a characteristic diagram showing the relationship between the flame propagation time and the air-fuel ratio,
Fig. 10 is a flowchart showing the program for detecting the air-fuel ratio, Fig. 11 is a diagram for explaining the operation of the image processing, and Fig. 12 shows a method for measuring the amount of intake air by a conventional air-fuel ratio detecting device. It is a diagram. 14... Combustion chamber, 30... Flame state detection means,
38...Fractal dimension calculation circuit (fractal dimension calculation means), 43...Fractal dimension change amount calculation circuit (propagation speed calculation means), 48...Air-fuel ratio estimation circuit (air-fuel ratio calculation means).
Claims (1)
検出する火炎状態検出手段と、 (b) 前記火炎状態に基づいて火炎の輪郭のフラ
クタル次元を演算するフラクタル次元演算手段と
、 (c) フラクタル次元演算手段により演算された
フラクタル次元に基づいてフラクタル次元の変化
速度を演算し、該変化速度に基づいて火炎の伝搬
速度を演算する伝搬速度演算手段と、 (d) 前記伝搬速度に基づいて空燃比を算出する
空燃比演算手段と、 を備えたことを特徴とする空燃比検出装置。[Claims for Utility Model Registration] (a) Flame state detection means for detecting a flame state occurring in the combustion chamber of an engine; (b) Fractal dimension calculation for calculating a fractal dimension of a flame outline based on the flame state. (c) propagation velocity calculation means for calculating a change rate of the fractal dimension based on the fractal dimension calculated by the fractal dimension calculation means and calculating a flame propagation speed based on the change rate; (d) An air-fuel ratio detection device comprising: an air-fuel ratio calculation means for calculating an air-fuel ratio based on the propagation speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14592887U JPH0541394Y2 (en) | 1987-09-24 | 1987-09-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14592887U JPH0541394Y2 (en) | 1987-09-24 | 1987-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6450339U true JPS6450339U (en) | 1989-03-28 |
| JPH0541394Y2 JPH0541394Y2 (en) | 1993-10-20 |
Family
ID=31414950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14592887U Expired - Lifetime JPH0541394Y2 (en) | 1987-09-24 | 1987-09-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0541394Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013061235A (en) * | 2011-09-13 | 2013-04-04 | Hino Motors Ltd | Photographing device and photographing method |
-
1987
- 1987-09-24 JP JP14592887U patent/JPH0541394Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013061235A (en) * | 2011-09-13 | 2013-04-04 | Hino Motors Ltd | Photographing device and photographing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0541394Y2 (en) | 1993-10-20 |
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