JPS6322359U - - Google Patents
Info
- Publication number
- JPS6322359U JPS6322359U JP11522786U JP11522786U JPS6322359U JP S6322359 U JPS6322359 U JP S6322359U JP 11522786 U JP11522786 U JP 11522786U JP 11522786 U JP11522786 U JP 11522786U JP S6322359 U JPS6322359 U JP S6322359U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- pulse signal
- signal
- injection pulse
- pulse width
- 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 12
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000005856 abnormality Effects 0.000 claims 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 230000007257 malfunction Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の構成を示す機能ブロツク図、
第２図は本考案の一実施例を示す電子制御燃料噴
射装置の概略図、第３図は第２図の出力ポート部
分のブロツク回路図、第４図は動作波形図、第５
図は割込み要求ルーチンのフローチヤート、第６
図は他の実施例を示す出力ポート部分のブロツク
回路図である。
１０…センサ群、２０…制御回路、２３…ＣＰ
Ｕ、２６…出力ポート、３０…インジエクタ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
Fig. 2 is a schematic diagram of an electronically controlled fuel injection system showing one embodiment of the present invention, Fig. 3 is a block circuit diagram of the output port portion of Fig. 2, Fig. 4 is an operating waveform diagram, and Fig. 5
Figure 6 is a flowchart of the interrupt request routine.
The figure is a block circuit diagram of an output port portion showing another embodiment. 10...Sensor group, 20...Control circuit, 23...CP
U, 26...output port, 30...injector.
Claims (1)
燃料噴射量演算手段と、演算された燃料噴射量に
対応するパルス巾の燃料噴射パルス信号を所定の
タイミングで出力しインジエクタを駆動する燃料
噴射パルス信号出力手段とを有する電子制御燃料
噴射装置において、燃料噴射パルス信号のパルス
巾が所定の下限値以下のときに異常と判定して割
込み要求信号を生成する割込み要求信号生成手段
と、割込み要求信号に応答して所定パルス巾の燃
料噴射パルス信号を追加して出力する燃料噴射パ
ルス信号追加出力手段とを設けてなる電子制御燃
料噴射装置の誤動作防止装置。 A fuel injection amount calculation means that calculates the fuel injection amount according to the operating state of the engine, and a fuel injection pulse that outputs a fuel injection pulse signal with a pulse width corresponding to the calculated fuel injection amount at a predetermined timing to drive the injector. an electronically controlled fuel injection device having a signal output means, an interrupt request signal generation means for determining an abnormality and generating an interrupt request signal when the pulse width of the fuel injection pulse signal is less than or equal to a predetermined lower limit value; A malfunction prevention device for an electronically controlled fuel injection system, comprising: a fuel injection pulse signal additional output means for additionally outputting a fuel injection pulse signal of a predetermined pulse width in response to the fuel injection pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11522786U JPH0730925Y2 (en) | 1986-07-29 | 1986-07-29 | Malfunction prevention device for electronically controlled fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11522786U JPH0730925Y2 (en) | 1986-07-29 | 1986-07-29 | Malfunction prevention device for electronically controlled fuel injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6322359U true JPS6322359U (en) | 1988-02-15 |
| JPH0730925Y2 JPH0730925Y2 (en) | 1995-07-19 |
Family
ID=30998675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11522786U Expired - Lifetime JPH0730925Y2 (en) | 1986-07-29 | 1986-07-29 | Malfunction prevention device for electronically controlled fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730925Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03505115A (en) * | 1988-06-14 | 1991-11-07 | ニラ オートモーティブ アクティエボラーグ | Configuration for temperature limitation of combustion engine exhaust gases |
-
1986
- 1986-07-29 JP JP11522786U patent/JPH0730925Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03505115A (en) * | 1988-06-14 | 1991-11-07 | ニラ オートモーティブ アクティエボラーグ | Configuration for temperature limitation of combustion engine exhaust gases |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730925Y2 (en) | 1995-07-19 |
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