JPH0250042U - - Google Patents
Info
- Publication number
- JPH0250042U JPH0250042U JP12514988U JP12514988U JPH0250042U JP H0250042 U JPH0250042 U JP H0250042U JP 12514988 U JP12514988 U JP 12514988U JP 12514988 U JP12514988 U JP 12514988U JP H0250042 U JPH0250042 U JP H0250042U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- crank angle
- abnormality
- reference signal
- abnormality detection
- 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
- 239000000446 fuel Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 5
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
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内燃機関のシス
テム図、第３図〜第６図は制御内容を示すのフロ
ーチヤート、第７図は従来の燃料噴射及び点火の
様子を示す図、第８図は本考案の場合の燃料噴射
及び点火の様子を示す図である。
１……機関、７……燃料噴射弁、９……コント
ロールユニツト、１０……エアフローメータ、１
１……クランク角センサ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
Fig. 2 is a system diagram of an internal combustion engine showing an embodiment of the present invention, Figs. 3 to 6 are flowcharts showing control contents, Fig. 7 is a diagram showing conventional fuel injection and ignition, FIG. 8 is a diagram showing the state of fuel injection and ignition in the case of the present invention. 1... Engine, 7... Fuel injection valve, 9... Control unit, 10... Air flow meter, 1
1...Crank angle sensor.
Claims (1)
手段により、クランク角センサから基準クランク
角位置にて出力される基準信号に基づく所定のタ
イミングで前記燃料噴射弁の燃料噴射を行わせる
内燃機関の電子制御燃料噴射装置において、前記
クランク角センサからの基準信号の発生周期を監
視して異常時に異常検出信号を出力する異常検出
手段と、異常検出信号を受けて前記燃料噴射制御
手段に代わり異常検出直前の基準信号の発生周期
を基に定められる時間隔毎に前記燃料噴射弁の燃
料噴射を行わせるバツクアツプ手段とを設けたこ
とを特徴とする電子制御燃料噴射装置のバツクア
ツプ装置。 An internal combustion engine comprising a fuel injection valve in an engine intake system, the fuel injection control means injecting fuel from the fuel injection valve at a predetermined timing based on a reference signal output from a crank angle sensor at a reference crank angle position. In the electronically controlled fuel injection device, an abnormality detection means monitors the generation cycle of the reference signal from the crank angle sensor and outputs an abnormality detection signal in the event of an abnormality, and upon receiving the abnormality detection signal, detects the abnormality in place of the fuel injection control means. A backup device for an electronically controlled fuel injection system, characterized in that a backup device is provided for causing the fuel injection valve to inject fuel at every time interval determined based on the generation cycle of the immediately preceding reference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514988U JPH0250042U (en) | 1988-09-27 | 1988-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12514988U JPH0250042U (en) | 1988-09-27 | 1988-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250042U true JPH0250042U (en) | 1990-04-06 |
Family
ID=31375498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12514988U Pending JPH0250042U (en) | 1988-09-27 | 1988-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280193A (en) * | 2000-01-27 | 2001-10-10 | Denso Corp | Engine controller |
-
1988
- 1988-09-27 JP JP12514988U patent/JPH0250042U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280193A (en) * | 2000-01-27 | 2001-10-10 | Denso Corp | Engine controller |