JPS648640U - - Google Patents
Info
- Publication number
- JPS648640U JPS648640U JP10347487U JP10347487U JPS648640U JP S648640 U JPS648640 U JP S648640U JP 10347487 U JP10347487 U JP 10347487U JP 10347487 U JP10347487 U JP 10347487U JP S648640 U JPS648640 U JP S648640U
- Authority
- JP
- Japan
- Prior art keywords
- knock
- detecting
- determining
- detection means
- density
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 1
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Description
添付図面は本考案の一実施例を示す図であり、
第１図は模式的に示す構成図、第２図ａ〜ｄはそ
の作用を説明するためのタイミングチヤートであ
る。
７……点火プラグ、｛１１……投光伝送路、１
２……受光伝送路、１３，１４……光フアイバ、
１７……電圧／光変換器、１８……光／電圧変換
器｝（密度変化検出手段）、１９……フイルタ（
ノツク検出手段）、２０……コントロールユニツ
ト（ノツク判定手段）。
The attached drawings are diagrams showing one embodiment of the present invention,
FIG. 1 is a schematic configuration diagram, and FIGS. 2 a to 2 d are timing charts for explaining the operation. 7...Spark plug, {11...Light transmission line, 1
2... Light reception transmission line, 13, 14... Optical fiber,
17... Voltage/light converter, 18... Light/voltage converter} (density change detection means), 19... Filter (
(knock detection means), 20...control unit (knock determination means).
Claims (1)
による燃焼ガスの密度変化を検出する密度変化検
出手段と、該密度変化検出手段の検出結果に基づ
いて所定のノツク振動を検出するノツク検出手段
と、該ノツク検出手段の出力を判別して所定のノ
ツキングを判定するノツク判定手段と、を備えた
ことを特徴とするノツキング検出装置。 a density change detection means for detecting a change in the density of combustion gas due to vibrations of combustion gas in the cylinder that changes due to combustion; and a knock detection means for detecting a predetermined knock vibration based on a detection result of the density change detection means. 1. A knocking detecting device comprising: knock determining means for determining a predetermined knocking by determining the output of the knock detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347487U JPS648640U (en) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10347487U JPS648640U (en) | 1987-07-07 | 1987-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS648640U true JPS648640U (en) | 1989-01-18 |
Family
ID=31334340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10347487U Pending JPS648640U (en) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS648640U (en) |
-
1987
- 1987-07-07 JP JP10347487U patent/JPS648640U/ja active Pending
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