JPS62165458U - - Google Patents
Info
- Publication number
- JPS62165458U JPS62165458U JP5344686U JP5344686U JPS62165458U JP S62165458 U JPS62165458 U JP S62165458U JP 5344686 U JP5344686 U JP 5344686U JP 5344686 U JP5344686 U JP 5344686U JP S62165458 U JPS62165458 U JP S62165458U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- pressure sensor
- output
- opening time
- valve opening
- 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 20
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
第１図はＬＰＧ燃料の燃料蒸気圧線図と異常判
定を示す領域を説明する図、第２図は本考案によ
る燃料供給装置の一実施例の系統図である。
４…電磁式噴射弁、５…制御装置、７…ＬＰＧ
ボンベ、１０…燃料ポンプ、１８…燃料圧力セン
サー、１９…燃料温度センサー。
FIG. 1 is a diagram illustrating a fuel vapor pressure diagram of LPG fuel and areas showing abnormality determination, and FIG. 2 is a system diagram of an embodiment of the fuel supply device according to the present invention. 4...Electromagnetic injection valve, 5...Control device, 7...LPG
cylinder, 10... fuel pump, 18... fuel pressure sensor, 19... fuel temperature sensor.
Claims (1)
制御しこの開弁時間を基本開弁時間に対して燃料
圧力センサーと燃料温度センサーの出力により補
正制御するものにおいて、前記燃料温度センサー
の出力に対し燃料圧力センサーの出力が所定範囲
に無いとき燃料圧力センサーを異常と判定するこ
とを特徴とするＬＰＧエンジンの燃料供給装置。 ２ 請求の範囲第１項記載において、燃料圧力セ
ンサーが異常と判定されたときにはこの燃料圧力
センサーの出力を無視し燃料温度センサーの出力
と所定の組成燃料の燃料蒸気圧曲線から求めた燃
料圧力により開弁時間の補正を行うことを特徴と
するＬＰＧエンジンの燃料供給装置。[Scope of Claim for Utility Model Registration] 1. Fuel supply amount is controlled by the valve opening time of an electromagnetic injection valve, and this valve opening time is corrected and controlled with respect to the basic valve opening time by the outputs of a fuel pressure sensor and a fuel temperature sensor. A fuel supply system for an LPG engine, characterized in that the fuel pressure sensor is determined to be abnormal when the output of the fuel pressure sensor is not within a predetermined range with respect to the output of the fuel temperature sensor. 2. In claim 1, when the fuel pressure sensor is determined to be abnormal, the output of the fuel pressure sensor is ignored and the fuel pressure determined from the output of the fuel temperature sensor and the fuel vapor pressure curve of the fuel with a predetermined composition is used. A fuel supply device for an LPG engine, characterized by correcting valve opening time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5344686U JPS62165458U (en) | 1986-04-11 | 1986-04-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5344686U JPS62165458U (en) | 1986-04-11 | 1986-04-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62165458U true JPS62165458U (en) | 1987-10-21 |
Family
ID=30879514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5344686U Pending JPS62165458U (en) | 1986-04-11 | 1986-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62165458U (en) |
-
1986
- 1986-04-11 JP JP5344686U patent/JPS62165458U/ja active Pending
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