JPS5835633U - Electronically controlled fuel injection device - Google Patents
Electronically controlled fuel injection deviceInfo
- Publication number
- JPS5835633U JPS5835633U JP12953181U JP12953181U JPS5835633U JP S5835633 U JPS5835633 U JP S5835633U JP 12953181 U JP12953181 U JP 12953181U JP 12953181 U JP12953181 U JP 12953181U JP S5835633 U JPS5835633 U JP S5835633U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- valve
- opening pulse
- fuel injection
- electronically controlled
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の電子制御燃料噴射装置、第２図は、制
御ユニットの内部構成を示したブロック図、第３図は、
従来の電子制御燃料噴射装置の低負荷時における開弁パ
ルス時間（パルス幅）と燃料噴射量との関係図、第４図
は、この考案の一実施例の構成図、第５図は、フローチ
ャートを示す。
符号の説明、１・・・クランク角センサ、２・・・絞弁
開度センサ、３・・・吸入空気流量計、４・・・制御ユ
ニット、５・・・０□センサ、６・・・燃料噴射弁、７
・・・絞弁、８・・・補助空気量制御弁、９・・・負圧
制御弁、１０・・・イグニッションコイル、１１・・・
内燃機関、１２・・・波形整形回路、１３・・・周波数
−電圧変換器、１４・・・基本パルス幅演算回路、１５
・・・増量補正回路、１６・・・空燃比フィードバック
制御回路、１７・・・電圧補正回路、１８・・・バッテ
リ、１９・・・演算回路、２０・・・パワーアンプ、２
１・・・燃料噴射回数補正回路、２２・・・比較器、Ｒ
，； Ｒ２・・・分圧抵抗。FIG. 1 is a conventional electronically controlled fuel injection device, FIG. 2 is a block diagram showing the internal configuration of the control unit, and FIG. 3 is a
A diagram showing the relationship between valve opening pulse time (pulse width) and fuel injection amount during low load of a conventional electronically controlled fuel injection device, FIG. 4 is a block diagram of an embodiment of this invention, and FIG. 5 is a flowchart. shows. Explanation of symbols, 1... Crank angle sensor, 2... Throttle valve opening sensor, 3... Intake air flow meter, 4... Control unit, 5... 0□ sensor, 6... Fuel injection valve, 7
... Throttle valve, 8... Auxiliary air amount control valve, 9... Negative pressure control valve, 10... Ignition coil, 11...
Internal combustion engine, 12... Waveform shaping circuit, 13... Frequency-voltage converter, 14... Basic pulse width calculation circuit, 15
... Increase correction circuit, 16... Air-fuel ratio feedback control circuit, 17... Voltage correction circuit, 18... Battery, 19... Arithmetic circuit, 20... Power amplifier, 2
1...Fuel injection frequency correction circuit, 22...Comparator, R
,; R2... Voltage dividing resistor.
Claims (1)
運転状態を検出するセンサと、該センサの信号を入力し
て内燃機関−回転当りの燃料噴射開弁基本パルス幅を演
算する演算回路と、内燃機関の低負荷時の設定パルス幅
を判別する開弁パルス幅判別回路と、上記開弁パルス幅
が設定開弁パルス幅以下のときに、上記開弁パルス幅を
乗算する乗算回路とを備え、該開弁パルス幅判別回路の
出力によって燃料噴射回数を、開弁パルス幅が設定開弁
パルス幅以上の場合より減少させる構成にしたことを特
徴とする電子制御燃料噴射装置。An electronically controlled fuel injection device for an internal combustion engine includes a sensor that detects the operating state of the internal combustion engine, an arithmetic circuit that inputs a signal from the sensor and calculates a basic fuel injection valve opening pulse width per rotation of the internal combustion engine, and an internal combustion engine. A valve-opening pulse width determination circuit that determines a set pulse width when the engine is under low load, and a multiplication circuit that multiplies the valve-opening pulse width when the valve-opening pulse width is less than or equal to the set valve-opening pulse width, An electronically controlled fuel injection device characterized in that the number of fuel injections is reduced by the output of the valve opening pulse width determination circuit when the valve opening pulse width is equal to or greater than a set valve opening pulse width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12953181U JPS5835633U (en) | 1981-09-02 | 1981-09-02 | Electronically controlled fuel injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12953181U JPS5835633U (en) | 1981-09-02 | 1981-09-02 | Electronically controlled fuel injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5835633U true JPS5835633U (en) | 1983-03-08 |
Family
ID=29923192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12953181U Pending JPS5835633U (en) | 1981-09-02 | 1981-09-02 | Electronically controlled fuel injection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835633U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219821A (en) * | 1975-08-08 | 1977-02-15 | Nippon Denso Co Ltd | Electronic control system fuel injection apparatus |
| JPS5341642A (en) * | 1976-09-29 | 1978-04-15 | Nippon Denso Co Ltd | Electronic control type fuel jet apparatus |
| JPS5364125A (en) * | 1976-11-17 | 1978-06-08 | Nippon Denso Co Ltd | Rpm detector for electronic controlling fule injectors |
| JPS5557635A (en) * | 1978-10-20 | 1980-04-28 | Nissan Motor Co Ltd | Fuel injection system |
| JPS55137323A (en) * | 1979-04-13 | 1980-10-27 | Nippon Denso Co Ltd | Electronic controlled fuel injection device |
-
1981
- 1981-09-02 JP JP12953181U patent/JPS5835633U/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5219821A (en) * | 1975-08-08 | 1977-02-15 | Nippon Denso Co Ltd | Electronic control system fuel injection apparatus |
| JPS5341642A (en) * | 1976-09-29 | 1978-04-15 | Nippon Denso Co Ltd | Electronic control type fuel jet apparatus |
| JPS5364125A (en) * | 1976-11-17 | 1978-06-08 | Nippon Denso Co Ltd | Rpm detector for electronic controlling fule injectors |
| JPS5557635A (en) * | 1978-10-20 | 1980-04-28 | Nissan Motor Co Ltd | Fuel injection system |
| JPS55137323A (en) * | 1979-04-13 | 1980-10-27 | Nippon Denso Co Ltd | Electronic controlled fuel injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5835633U (en) | Electronically controlled fuel injection device | |
| JPS6133972U (en) | Internal combustion engine ignition timing control device | |
| JPS5835643U (en) | Air-fuel ratio control correction device | |
| JPS61151052U (en) | ||
| JPS59105040U (en) | Electronically controlled fuel injection system for internal combustion engines | |
| JPS58132173U (en) | engine control device | |
| JPS6041583U (en) | Internal combustion engine ignition timing control device | |
| JPS60188839U (en) | Air-fuel ratio control device for electronically controlled fuel injection internal combustion engines | |
| JPS616748U (en) | Internal combustion engine combustion chamber pressure detection device | |
| JPS6178256U (en) | ||
| JPS5873937U (en) | Internal combustion engine fuel supply stop device | |
| JPS5949739U (en) | Electronically controlled fuel injection system for internal combustion engines | |
| JPS60112649U (en) | Internal combustion engine fuel supply system | |
| JPS61192544U (en) | ||
| JPS62110548U (en) | ||
| JPS6078955U (en) | Internal combustion engine control device | |
| JPH0335240U (en) | ||
| JPS60164662U (en) | Diesel engine exhaust recirculation control device | |
| JPS584741U (en) | vehicle speed control device | |
| JPS59131544U (en) | Air-fuel ratio control device for internal combustion engines | |
| JPS58146084U (en) | Ignition timing control device | |
| JPS59170650U (en) | Mixture control device for turbocharged engine | |
| JPH01173359U (en) | ||
| JPH0213146U (en) | ||
| JPS584742U (en) | fuel control device |