JPS62179358U - - Google Patents
Info
- Publication number
- JPS62179358U JPS62179358U JP6718186U JP6718186U JPS62179358U JP S62179358 U JPS62179358 U JP S62179358U JP 6718186 U JP6718186 U JP 6718186U JP 6718186 U JP6718186 U JP 6718186U JP S62179358 U JPS62179358 U JP S62179358U
- Authority
- JP
- Japan
- Prior art keywords
- output
- time width
- fuel injection
- injection period
- vibration 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
第１図はこの考案の構成を示すブロツク図、第
２図は機関の運転状態と実噴射期間との関係を示
すグラフ、第３図は第１図の構成に基づく作動を
説明するタイムチヤートである。
１……振動センサ、２……パルス検出回路（検
出手段）、３……カウンタ（時間幅計測手段）、
４……実噴射期間演算手段、５……比較回路（比
較手段）。
Figure 1 is a block diagram showing the configuration of this invention, Figure 2 is a graph showing the relationship between engine operating conditions and actual injection period, and Figure 3 is a time chart explaining the operation based on the configuration of Figure 1. be. 1... Vibration sensor, 2... Pulse detection circuit (detection means), 3... Counter (time width measurement means),
4... Actual injection period calculation means, 5... Comparison circuit (comparison means).
Claims (1)
じた出力をする振動センサを有し、該振動センサ
の出力に基づき燃料の噴射期間を検出し得るよう
にした機関用燃料噴射弁の噴射期間検出装置にお
いて、前記振動センサの出力のゼロクロス点を時
間幅としてパルス化した出力をする検出手段と、
該検出手段の出力パルスの時間幅を計測する時間
幅計測手段と、機関の運転状態に応じて実際の燃
料噴射期間を演算する実噴射期間演算手段と、該
実噴射期間演算手段の出力と前記時間幅計測手段
の出力とを比較して該時間幅計測手段の出力が所
定の範囲にあるとき検出出力を得る比較手段とを
備えたことを特徴とする機関用燃料噴射弁の噴射
期間検出装置。 An injection fuel injection valve for an engine, which has a vibration sensor that detects vibrations in a fuel injection system and outputs an output according to the amplitude of the vibrations, and is capable of detecting a fuel injection period based on the output of the vibration sensor. In the period detection device, a detection means for outputting a pulsed output with a time width set to a zero-crossing point of the output of the vibration sensor;
a time width measuring means for measuring the time width of the output pulse of the detection means; an actual injection period calculating means for calculating the actual fuel injection period according to the operating state of the engine; and an output of the actual injection period calculating means and the above. An injection period detection device for an engine fuel injection valve, characterized in that it comprises a comparing means for comparing the output of the time width measuring means and obtaining a detected output when the output of the time width measuring means is within a predetermined range. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6718186U JPH0439409Y2 (en) | 1986-05-01 | 1986-05-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6718186U JPH0439409Y2 (en) | 1986-05-01 | 1986-05-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179358U true JPS62179358U (en) | 1987-11-14 |
| JPH0439409Y2 JPH0439409Y2 (en) | 1992-09-16 |
Family
ID=30905854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6718186U Expired JPH0439409Y2 (en) | 1986-05-01 | 1986-05-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439409Y2 (en) |
-
1986
- 1986-05-01 JP JP6718186U patent/JPH0439409Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0439409Y2 (en) | 1992-09-16 |