JPH0252939U - - Google Patents
Info
- Publication number
- JPH0252939U JPH0252939U JP13230288U JP13230288U JPH0252939U JP H0252939 U JPH0252939 U JP H0252939U JP 13230288 U JP13230288 U JP 13230288U JP 13230288 U JP13230288 U JP 13230288U JP H0252939 U JPH0252939 U JP H0252939U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- detection means
- correction coefficient
- fuel
- mixture ratio
- 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 17
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 7
- 238000002485 combustion reaction Methods 0.000 claims 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- 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ブロツク図、第２
図は本考案の一実施例の構成を示す図、第３図は
同上実施例におけるアルコールセンサの異常を検
出するルーチンを示すフローチヤート、第４図は
同上実施例におけるアルコールセンサ異常時にお
ける混合比補正係数を修正するルーチンを示すフ
ローチヤート、第５図は同上実施例におけるアル
コールセンサの濃度補正係数の変化を示す図であ
る。
１……機関、６……燃料噴射弁、８……コント
ロールユニツト、９……エアフローメータ、１０
……クランク角センサ、１３……アルコールセン
サ。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure shows the configuration of one embodiment of the present invention, FIG. 3 is a flowchart showing a routine for detecting an abnormality in the alcohol sensor in the same embodiment, and FIG. 4 shows the mixture ratio when the alcohol sensor is abnormal in the above embodiment. FIG. 5 is a flowchart showing a routine for correcting the correction coefficient, and is a diagram showing changes in the concentration correction coefficient of the alcohol sensor in the same embodiment. DESCRIPTION OF SYMBOLS 1... Engine, 6... Fuel injection valve, 8... Control unit, 9... Air flow meter, 10
...Crank angle sensor, 13...Alcohol sensor.
Claims (1)
用可能な内燃機関の運転状態を検出する運転状態
検出手段と、機関に供給される燃料から、該燃料
中の基準となる燃料の濃度を検出する燃料濃度検
出手段と、機関吸入空気流量に基づいて基本燃料
噴射量を設定する基本燃料噴射量設定手段と、運
転状態検出手段によつて機関が高負荷であること
が検出されたとき前記基本燃料噴射量を増量補正
する混合比補正係数を設定する混合比補正係数設
定手段と、前記燃料濃度の検出値及び混合比補正
係数に基づいて最終的な燃料噴射量を設定する燃
料噴射量設定手段と、を備えてなる内燃機関の電
子制御燃料噴射装置において、 前記燃料濃度検出手段の異常を検出する異常検
出手段を設け、前記燃料濃度検出手段が異常であ
るとき、前記燃料噴射量設定手段に供給される燃
料濃度の検出値を所定値に固定する燃料濃度検出
値固定手段を設けると共に、機関が高負荷運転状
態にある時前記混合比補正係数を所定割合減少修
正する混合比補正係数修正手段を設けたことを特
徴とする内燃機関の電子制御燃料噴射装置。[Claims for Utility Model Registration] Operating state detection means for detecting the operating state of an internal combustion engine that can be used by switching or mixing different types of fuel; A fuel concentration detection means for detecting the fuel concentration, a basic fuel injection amount setting means for setting a basic fuel injection amount based on the engine intake air flow rate, and an operating state detection means are used to detect whether the engine is under high load. a mixture ratio correction coefficient setting means for setting a mixture ratio correction coefficient for increasing the basic fuel injection amount when detected; and setting a final fuel injection amount based on the detected value of the fuel concentration and the mixture ratio correction coefficient. In an electronically controlled fuel injection device for an internal combustion engine, the electronically controlled fuel injection device for an internal combustion engine is provided with an abnormality detection means for detecting an abnormality in the fuel concentration detection means, and when the fuel concentration detection means is abnormal, Fuel concentration detection value fixing means is provided for fixing the detected fuel concentration supplied to the fuel injection amount setting means at a predetermined value, and the mixture ratio correction coefficient is corrected to decrease by a predetermined percentage when the engine is in a high load operating state. An electronically controlled fuel injection device for an internal combustion engine, characterized in that a mixture ratio correction coefficient correction means is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132302U JPH0810672Y2 (en) | 1988-10-12 | 1988-10-12 | Electronically controlled fuel injection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988132302U JPH0810672Y2 (en) | 1988-10-12 | 1988-10-12 | Electronically controlled fuel injection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0252939U true JPH0252939U (en) | 1990-04-17 |
| JPH0810672Y2 JPH0810672Y2 (en) | 1996-03-29 |
Family
ID=31389138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988132302U Expired - Lifetime JPH0810672Y2 (en) | 1988-10-12 | 1988-10-12 | Electronically controlled fuel injection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810672Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941579A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Method, device and equipment for controlling smoke intensity of engine and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166742U (en) * | 1988-05-16 | 1989-11-22 |
-
1988
- 1988-10-12 JP JP1988132302U patent/JPH0810672Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01166742U (en) * | 1988-05-16 | 1989-11-22 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941579A (en) * | 2022-05-09 | 2022-08-26 | 潍柴动力股份有限公司 | Method, device and equipment for controlling smoke intensity of engine and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810672Y2 (en) | 1996-03-29 |