JPS62179343U - - Google Patents
Info
- Publication number
- JPS62179343U JPS62179343U JP6656486U JP6656486U JPS62179343U JP S62179343 U JPS62179343 U JP S62179343U JP 6656486 U JP6656486 U JP 6656486U JP 6656486 U JP6656486 U JP 6656486U JP S62179343 U JPS62179343 U JP S62179343U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection amount
- air flow
- flow rate
- intake air
- 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 16
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案に係る電子燃料噴射エンジンの
燃料制御装置の一実施例の概略説明図、第２図は
同実施例の燃料制御装置のブロツクダイヤグラム
、第３図は同実施例における燃料噴射制御プログ
ラムを示すフローチヤートである。
１０……エンジン本体、１３……エアフローメ
ータ、１４……スロツトル弁、１７……バタフラ
イ弁、１８……ブースト検出用センサ、２３……
エンジン回転数検出器、３０……燃料制御装置、
３１……Ｌ―Ｊ方式用パルス演算回路、３２……
Ｄ―Ｊ方式用パルス演算回路、３４……Ｄ―Ｊ方
式故障判定回路、３６……パルス選択回路、３７
……制限手段駆動回路。
FIG. 1 is a schematic explanatory diagram of an embodiment of the fuel control device for an electronic fuel injection engine according to the present invention, FIG. 2 is a block diagram of the fuel control device of the same embodiment, and FIG. 3 is a fuel injection diagram of the same embodiment. 3 is a flowchart showing a control program. 10... Engine body, 13... Air flow meter, 14... Throttle valve, 17... Butterfly valve, 18... Boost detection sensor, 23...
Engine speed detector, 30... fuel control device,
31... Pulse calculation circuit for L-J method, 32...
D-J method pulse calculation circuit, 34...D-J method failure determination circuit, 36...Pulse selection circuit, 37
...Limiting means drive circuit.
Claims (1)
空気流量を検出する吸入空気流量検出手段と、ス
ロツトル弁下流の吸気負圧若しくはスロツトル弁
開度に関する信号を検出する負荷検出手段と、エ
ンジン回転数を検出するエンジン回転数検出手段
と、上記吸入空気流量検出手段およびエンジン回
転数検出手段の出力に基づいて燃料噴射量を決定
する第１燃料噴射量演算手段と、上記負荷検出手
段およびエンジン回転数検出手段の出力に基づい
て燃料噴射量を決定する第２燃料噴射量演算手段
と、吸入空気流量若しくは負荷が所定値未満の低
吸気流量域では上記第１燃料噴射量演算手段の出
力に基づいて、上記所定値以上の高吸気流量域で
は上記第２燃料噴射量演算手段の出力に基づいて
燃料噴射弁を作動させる切換制御手段を有する電
子燃料噴射エンジンの燃料制御装置において、上
記負荷検出手段の故障を判定する故障判定手段と
、該故障判定手段の出力を受けエンジンに供給さ
れる吸入空気流量若しくは負荷を上記所定値未満
に制限する制限手段を駆動する制限手段駆動手段
とを有することを特徴とする電子噴射エンジンの
燃料制御装置。 An intake air flow rate detection means which is interposed in the intake passage and detects the intake air flow rate supplied to the engine; a load detection means which detects a signal related to the intake negative pressure downstream of the throttle valve or the throttle valve opening; engine rotation speed detection means for detecting; first fuel injection amount calculation means for determining the fuel injection amount based on the outputs of the intake air flow rate detection means and the engine rotation speed detection means; and the load detection means and engine rotation speed detection. a second fuel injection amount calculation means that determines the fuel injection amount based on the output of the means; and a first fuel injection amount calculation means based on the output of the first fuel injection amount calculation means in a low intake air flow region where the intake air flow rate or load is less than a predetermined value. In a fuel control device for an electronic fuel injection engine having a switching control means for operating a fuel injection valve based on the output of the second fuel injection amount calculation means in a high intake flow rate range equal to or higher than the predetermined value, a failure of the load detection means is provided. and a limiting means driving means for driving a limiting means that receives the output of the failure determining means and limits the intake air flow rate or load supplied to the engine to below the predetermined value. Fuel control device for electronic injection engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986066564U JPH0634590Y2 (en) | 1986-04-30 | 1986-04-30 | Fuel control device for electronic fuel injection engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986066564U JPH0634590Y2 (en) | 1986-04-30 | 1986-04-30 | Fuel control device for electronic fuel injection engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179343U true JPS62179343U (en) | 1987-11-14 |
| JPH0634590Y2 JPH0634590Y2 (en) | 1994-09-07 |
Family
ID=30904685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986066564U Expired - Lifetime JPH0634590Y2 (en) | 1986-04-30 | 1986-04-30 | Fuel control device for electronic fuel injection engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634590Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791341A (en) * | 1980-11-27 | 1982-06-07 | Mitsubishi Motors Corp | Fuel supply equipment for engine |
| JPS597017A (en) * | 1982-07-05 | 1984-01-14 | Sumitomo Metal Ind Ltd | Method of masking pipe end and masking tape |
-
1986
- 1986-04-30 JP JP1986066564U patent/JPH0634590Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791341A (en) * | 1980-11-27 | 1982-06-07 | Mitsubishi Motors Corp | Fuel supply equipment for engine |
| JPS597017A (en) * | 1982-07-05 | 1984-01-14 | Sumitomo Metal Ind Ltd | Method of masking pipe end and masking tape |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634590Y2 (en) | 1994-09-07 |
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