JPH0212037U - - Google Patents
Info
- Publication number
- JPH0212037U JPH0212037U JP8939088U JP8939088U JPH0212037U JP H0212037 U JPH0212037 U JP H0212037U JP 8939088 U JP8939088 U JP 8939088U JP 8939088 U JP8939088 U JP 8939088U JP H0212037 U JPH0212037 U JP H0212037U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- alcohol concentration
- alcohol
- injection
- pump
- 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 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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図ないし第３図は本考案の第１の実施例に
係り、第１図は本実施例による燃料噴射制御装置
の全体構成図、第２図は回路構成を示すブロツク
図、第３図は噴射量演算処理を示す流れ図、第４
図は本考案の第２の実施例による噴射量演算処理
を示す流れ図、第５図ないし第８図は従来技術に
係り、第５図はアルコール濃度と空燃比との関係
を示す線図、第６図は抵抗式アルコールセンサの
具体的構成を示す構成図、第７図はアルコール濃
度と電極間抵抗との関係を示す線図、第８図はア
ルコール濃度と出力電圧との関係を示す線図であ
る。
１……エンジン、２……噴射弁、７……燃料タ
ンク、８……アルコール混合ガソリン、９……燃
料ポンプ、１０……燃料配管、１３……アルコー
ルセンサ、１５……演算装置、ｔ０……旧燃料噴
射時間、ｔ……タイマ、Ｃ０……旧燃料アルコー
ル濃度、Ｔｉｏ……旧燃料噴射量、ΣＴｉ……噴
射量積算カウンタ。
1 to 3 relate to a first embodiment of the present invention, in which FIG. 1 is an overall configuration diagram of a fuel injection control device according to this embodiment, FIG. 2 is a block diagram showing a circuit configuration, and FIG. 3 is a block diagram showing a circuit configuration. 4 is a flowchart showing the injection amount calculation process.
Figure 5 is a flowchart showing the injection amount calculation process according to the second embodiment of the present invention, Figures 5 to 8 relate to the prior art, Figure 5 is a diagram showing the relationship between alcohol concentration and air-fuel ratio; Figure 6 is a configuration diagram showing the specific configuration of a resistive alcohol sensor, Figure 7 is a diagram showing the relationship between alcohol concentration and interelectrode resistance, and Figure 8 is a diagram showing the relationship between alcohol concentration and output voltage. It is. DESCRIPTION OF SYMBOLS 1...Engine, 2...Injection valve, 7...Fuel tank, 8...Alcohol mixed gasoline, 9...Fuel pump, 10...Fuel piping, 13...Alcohol sensor, 15...Arithmetic unit, t 0 ... Old fuel injection time, t ... Timer, C 0 ... Old fuel alcohol concentration, T io ... Old fuel injection amount, ΣT i ... Injection amount integration counter.
Claims (1)
燃料タンク内の燃料を吐出する燃料ポンプと、燃
料配管を介して該燃料ポンプから供給された燃料
をエンジンに噴射する噴射弁とからなる燃料噴射
制御装置において、前記燃料タンク、燃料ポンプ
および燃料配管を含む燃料供給系統内の所望位置
に設けられ、燃料中のアルコール濃度を検出する
アルコール濃度検出手段と、該アルコール濃度検
出手段による検出濃度がそれ以前のアルコール濃
度と比較して変化したときには、所定噴射時間ま
たは所定噴射量だけ変化前のアルコール濃度に基
づいて燃料噴射量を演算する演算手段とから構成
したことを特徴とする燃料噴射制御装置。 A fuel injection control device comprising a fuel tank that stores alcohol mixed fuel, a fuel pump that discharges the fuel in the fuel tank, and an injection valve that injects the fuel supplied from the fuel pump to the engine via a fuel pipe. , an alcohol concentration detection means provided at a desired position in the fuel supply system including the fuel tank, the fuel pump and the fuel piping, for detecting the alcohol concentration in the fuel; and an alcohol concentration detection means for detecting the alcohol concentration in the fuel; 1. A fuel injection control device comprising: calculation means for calculating a fuel injection amount based on the alcohol concentration before the change by a predetermined injection time or a predetermined injection amount when the alcohol concentration changes compared to the alcohol concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8939088U JPH0212037U (en) | 1988-07-05 | 1988-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8939088U JPH0212037U (en) | 1988-07-05 | 1988-07-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0212037U true JPH0212037U (en) | 1990-01-25 |
Family
ID=31313942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8939088U Pending JPH0212037U (en) | 1988-07-05 | 1988-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263095A (en) * | 2006-03-30 | 2007-10-11 | Toyota Motor Corp | Fuel property detection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952054B2 (en) * | 1974-10-03 | 1984-12-18 | 三菱化成ポリテック株式会社 | Recycled glass conveying device in glass bottle making machine |
-
1988
- 1988-07-05 JP JP8939088U patent/JPH0212037U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952054B2 (en) * | 1974-10-03 | 1984-12-18 | 三菱化成ポリテック株式会社 | Recycled glass conveying device in glass bottle making machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263095A (en) * | 2006-03-30 | 2007-10-11 | Toyota Motor Corp | Fuel property detection device |