JPS62132251U - - Google Patents
Info
- Publication number
- JPS62132251U JPS62132251U JP1999086U JP1999086U JPS62132251U JP S62132251 U JPS62132251 U JP S62132251U JP 1999086 U JP1999086 U JP 1999086U JP 1999086 U JP1999086 U JP 1999086U JP S62132251 U JPS62132251 U JP S62132251U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- abnormality
- injection amount
- engine operating
- flow rate
- 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 13
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000005856 abnormality Effects 0.000 claims 9
- 238000001514 detection method Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の構成図、第２図は本考案の一
実施例を示す概略構成図、第３図は同上実施例に
おける熱線式流量計を示す回路図、第４図は同上
実施例におけるフエールセーフ制御を示すフロー
チヤート、第５図は各スイツチのＯＮ・ＯＦＦと
燃料噴射巾Ｔｉとの関係を示すタイムチヤート、
第６図は従来のフエールセーフ制御を示すフロー
チヤートである。
１…機関、６…熱線式流量計、７…スロツトル
弁、８…アイドルスイツチ、９…燃料噴射弁、１
０…クランク角センサ、１１…制御装置、１２…
フルスイツチ。
Fig. 1 is a block diagram of the present invention, Fig. 2 is a schematic block diagram showing an embodiment of the present invention, Fig. 3 is a circuit diagram showing a hot wire flowmeter in the embodiment of the above, and Fig. 4 is an embodiment of the same. FIG. 5 is a flowchart showing fail-safe control in FIG. 5, a time chart showing the relationship between ON/OFF of each switch and fuel injection width Ti,
FIG. 6 is a flowchart showing conventional fail-safe control. 1... Engine, 6... Hot wire flow meter, 7... Throttle valve, 8... Idle switch, 9... Fuel injection valve, 1
0...Crank angle sensor, 11...Control device, 12...
Full switch.
Claims (1)
出手段と、吸入空気流量以外の複数の特定機関運
転パラメータを含む機関運転状態を検出する機関
運転状態検出手段と、検出された吸入空気流量と
その他の機関運転状態に基づいて燃料噴射量を制
御する燃料噴射制御手段と、を備えた電子制御燃
料噴射式内燃機関において、前記吸入空気流量検
出手段の異常を判定する異常判定手段と、吸入空
気流量以外の前記複数の特定機関運転パラメータ
の組み合わせ領域により設けられた機関運転状態
に応じて異常時における燃料噴射量を記憶した異
常時燃料噴射量記憶手段と、前記異常判定手段に
よつて異常が判定されたときに前記燃料噴射制御
手段に優先して前記異常時燃料噴射量記憶手段の
記憶値に基づき燃料噴射量を制御する異常時燃料
噴射制御手段と、を備えてなる電子制御燃料噴射
式内燃機関のフエールセーフ装置。 An intake air flow rate detection means for detecting the intake air flow rate of the engine; an engine operating state detection means for detecting the engine operating state including a plurality of specific engine operating parameters other than the intake air flow rate; An electronically controlled fuel injection type internal combustion engine comprising: a fuel injection control means for controlling a fuel injection amount based on an engine operating state; an abnormality determination means for determining an abnormality in the intake air flow rate detection means; An abnormality is determined by an abnormality fuel injection amount storage means that stores a fuel injection amount at an abnormality according to an engine operating state provided by a combination area of the plurality of specific engine operation parameters, and the abnormality determination means. an electronically controlled fuel injection type internal combustion engine, comprising: abnormality fuel injection control means for controlling the fuel injection amount based on the stored value of the abnormality fuel injection amount storage means with priority over the fuel injection control means when the abnormality fuel injection amount storage means failsafe device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999086U JPS62132251U (en) | 1986-02-17 | 1986-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1999086U JPS62132251U (en) | 1986-02-17 | 1986-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62132251U true JPS62132251U (en) | 1987-08-20 |
Family
ID=30815087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1999086U Pending JPS62132251U (en) | 1986-02-17 | 1986-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62132251U (en) |
-
1986
- 1986-02-17 JP JP1999086U patent/JPS62132251U/ja active Pending