JPS59160855U - Diesel engine fuel injection timing detection device - Google Patents
Diesel engine fuel injection timing detection deviceInfo
- Publication number
- JPS59160855U JPS59160855U JP5474783U JP5474783U JPS59160855U JP S59160855 U JPS59160855 U JP S59160855U JP 5474783 U JP5474783 U JP 5474783U JP 5474783 U JP5474783 U JP 5474783U JP S59160855 U JPS59160855 U JP S59160855U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- diesel engine
- injection timing
- amplitude
- detection 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、この考案を実施した６気筒デイ一ゼル機関の
燃料噴射時期検出装置の一例を示すブロック図、第２図
は、第１図のカウンタ１６．１Ｂの一例を示すブロック
図、第３図は、第１図の作用説明に供するタイミングチ
ャート図である。
１・・・振動センサ、−２・・・前処理回路、５・・・
噴射開始検出回路、１０・・・噴射終了検出回路、１５
・・・選択回路、２１・・・トリガ発生回路、２２・・
・タイミングライト。FIG. 1 is a block diagram showing an example of a fuel injection timing detection device for a six-cylinder diesel engine implementing this invention, and FIG. 2 is a block diagram showing an example of the counter 16.1B in FIG. FIG. 3 is a timing chart for explaining the operation of FIG. 1. 1... Vibration sensor, -2... Pre-processing circuit, 5...
Injection start detection circuit, 10... Injection end detection circuit, 15
...Selection circuit, 21...Trigger generation circuit, 22...
・Timing light.
Claims (1)
基づいて燃料噴射時期を検出する燃料噴射時期検出装置
において、 前記燃料系の振動の振幅が背景雑音振動の振幅を越えた
ことを検出する噴射開始検出手段と、前記燃料系の振動
の振幅が該振動を検出する気筒の燃料噴射終了時の振幅
に達したことを検出する噴射終了検出手段と、前記噴射
開始検出手段の検出結果及び噴射終了検出手段の検出結
果に基づいて、前記噴射開始検出手段の検出結果の内の
前記振動を検出する気筒に対応する検出結果を選択する
選択手段とを設けたことを特徴とするディーゼル機関の
燃料噴射時期検出装置。[Scope of Claim for Utility Model Registration] A fuel injection timing detection device that detects vibrations in a fuel system of a diesel engine and detects fuel injection timing based on the detection results, wherein the amplitude of the vibrations in the fuel system is greater than that of background noise vibrations. injection start detection means for detecting that the amplitude has exceeded the amplitude; injection end detection means for detecting that the amplitude of vibration in the fuel system has reached the amplitude at the end of fuel injection of the cylinder in which the vibration is detected; and selection means for selecting a detection result corresponding to the cylinder in which the vibration is detected from among the detection results of the injection start detection means, based on the detection results of the start detection means and the detection results of the injection end detection means. A fuel injection timing detection device for a diesel engine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5474783U JPS59160855U (en) | 1983-04-14 | 1983-04-14 | Diesel engine fuel injection timing detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5474783U JPS59160855U (en) | 1983-04-14 | 1983-04-14 | Diesel engine fuel injection timing detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59160855U true JPS59160855U (en) | 1984-10-27 |
Family
ID=30185090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5474783U Pending JPS59160855U (en) | 1983-04-14 | 1983-04-14 | Diesel engine fuel injection timing detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59160855U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135930A (en) * | 1978-03-31 | 1979-10-22 | Caterpillar Tractor Co | Timing method and apparatus for same |
| JPS5614854A (en) * | 1979-07-14 | 1981-02-13 | Okuda Koki Kk | Apparatus for measuring dynamic injection timing |
| JPS5621033A (en) * | 1979-07-30 | 1981-02-27 | Toyota Motor Corp | Signal discriminator |
-
1983
- 1983-04-14 JP JP5474783U patent/JPS59160855U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54135930A (en) * | 1978-03-31 | 1979-10-22 | Caterpillar Tractor Co | Timing method and apparatus for same |
| JPS5614854A (en) * | 1979-07-14 | 1981-02-13 | Okuda Koki Kk | Apparatus for measuring dynamic injection timing |
| JPS5621033A (en) * | 1979-07-30 | 1981-02-27 | Toyota Motor Corp | Signal discriminator |
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