JPH048956U - - Google Patents
Info
- Publication number
- JPH048956U JPH048956U JP4972490U JP4972490U JPH048956U JP H048956 U JPH048956 U JP H048956U JP 4972490 U JP4972490 U JP 4972490U JP 4972490 U JP4972490 U JP 4972490U JP H048956 U JPH048956 U JP H048956U
- Authority
- JP
- Japan
- Prior art keywords
- gasoline
- oscillating
- voltage
- frequency
- capacitance
- 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
- 239000003502 gasoline Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 2
- 239000000295 fuel oil Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Description
第１図は本考案の実施例を燃料噴射制御装置に
適用した場合の全体構成図、第２図は本実施例の
回路構成を示すブロツク図、第３図はガソリン性
状に対する検出静電容量の関係を示す線図、第４
図はガソリン性状に対するｆ／Ｖ変換回路からの
検出電圧の関係を示す線図、第５図はガソリン性
状に対する反転増幅回路からの出力電圧の関係を
示す線図、第６図はコントロールユニツトによる
制御処理を示す流れ図、第７図は本考案の変形例
を示す第２図と同様の回路構成図である。
１……エンジン、２……点火プラグ、３……イ
ンテイクマニホールド、８……噴射弁、９……燃
料タンク、１１……燃料配管、１５，１５′……
ガソリン性状検出装置、１６……静電容量検出器
、１７……発振回路、１８……ｆ／Ｖ変換回路、
１９……反転増幅回路、２０……コントロールユ
ニツト、３１……電圧比較回路。
Fig. 1 is an overall configuration diagram when the embodiment of the present invention is applied to a fuel injection control device, Fig. 2 is a block diagram showing the circuit configuration of this embodiment, and Fig. 3 is a diagram showing the detection capacitance for gasoline properties. Diagram showing relationships, 4th
The figure is a diagram showing the relationship between the detection voltage from the f/V conversion circuit and the gasoline properties. Figure 5 is a diagram showing the relationship between the output voltage from the inverting amplifier circuit and the gasoline properties. Figure 6 is the diagram showing the relationship between the output voltage from the inverting amplifier circuit and the gasoline properties. FIG. 7, a flowchart showing the processing, is a circuit configuration diagram similar to FIG. 2 showing a modification of the present invention. 1...Engine, 2...Spark plug, 3...Intake manifold, 8...Injection valve, 9...Fuel tank, 11...Fuel piping, 15, 15'...
gasoline property detection device, 16... capacitance detector, 17... oscillation circuit, 18... f/V conversion circuit,
19... Inverting amplifier circuit, 20... Control unit, 31... Voltage comparison circuit.
Claims (1)
応じて定まる誘電率から電極間の静電容量を検出
する静電容量検出手段と、該静電容量検出手段に
よつて検出した静電容量に基づいた周波数を発振
する発振手段と、該発振手段による発振周波数を
電圧に変換する周波数−電圧変換手段と、該周波
数−電圧変換手段から出力された電圧信号を所定
電圧値と比較し、軽質油か重質油かを判定する性
状判定手段とから構成してなるガソリン性状判別
装置。 A capacitance detection means that is disposed in gasoline and detects the capacitance between the electrodes from the dielectric constant determined according to the properties of the gasoline, and a capacitance detection means that is based on the capacitance detected by the capacitance detection means. an oscillating means for oscillating a frequency generated by the oscillating means, a frequency-voltage converting means for converting the oscillation frequency by the oscillating means into a voltage, and a voltage signal outputted from the frequency-voltage converting means is compared with a predetermined voltage value, A gasoline property determining device comprising a property determining means for determining whether the oil is heavy oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4972490U JPH048956U (en) | 1990-05-11 | 1990-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4972490U JPH048956U (en) | 1990-05-11 | 1990-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048956U true JPH048956U (en) | 1992-01-27 |
Family
ID=31567660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4972490U Pending JPH048956U (en) | 1990-05-11 | 1990-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210860A1 (en) * | 1991-10-09 | 1993-04-15 | Japan Electronic Control Syst | SYSTEM FOR DETECTING THE TYPE OF GASOLINE |
| DE4311478A1 (en) * | 1992-04-07 | 1993-10-28 | Unisia Jecs Corp | Fuel type determination system - has sensors and data store for determining IC engine fuel mix ratio |
| US7272485B2 (en) | 2004-08-06 | 2007-09-18 | Nippon Soken, Inc. | Fuel nature measuring device of internal combustion engine and internal combustion engine having the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5323199U (en) * | 1976-08-06 | 1978-02-27 | ||
| JPS641947A (en) * | 1987-06-25 | 1989-01-06 | Nippon Soken Inc | Water drop detector |
-
1990
- 1990-05-11 JP JP4972490U patent/JPH048956U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5323199U (en) * | 1976-08-06 | 1978-02-27 | ||
| JPS641947A (en) * | 1987-06-25 | 1989-01-06 | Nippon Soken Inc | Water drop detector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4210860A1 (en) * | 1991-10-09 | 1993-04-15 | Japan Electronic Control Syst | SYSTEM FOR DETECTING THE TYPE OF GASOLINE |
| DE4210860C2 (en) * | 1991-10-09 | 1994-10-13 | Japan Electronic Control Syst | System for the detection of the type of petrol |
| DE4311478A1 (en) * | 1992-04-07 | 1993-10-28 | Unisia Jecs Corp | Fuel type determination system - has sensors and data store for determining IC engine fuel mix ratio |
| US5363314A (en) * | 1992-04-07 | 1994-11-08 | Unisia Jecs Corporation | Fuel character judging system |
| DE4311478C2 (en) * | 1992-04-07 | 1995-07-20 | Unisia Jecs Corp | Assessment system for the type of fuel |
| US7272485B2 (en) | 2004-08-06 | 2007-09-18 | Nippon Soken, Inc. | Fuel nature measuring device of internal combustion engine and internal combustion engine having the same |
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