JPH023039U - - Google Patents
Info
- Publication number
- JPH023039U JPH023039U JP8109488U JP8109488U JPH023039U JP H023039 U JPH023039 U JP H023039U JP 8109488 U JP8109488 U JP 8109488U JP 8109488 U JP8109488 U JP 8109488U JP H023039 U JPH023039 U JP H023039U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- air
- resistance value
- fuel ratio
- fuel
- 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 14
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- 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全体構成を示す図、
第３図は、同上実施例の燃料噴射弁駆動部の回路
構成を示す図、第４図〜第６図は同上実施例にお
ける各種制御ルーチンを示すフローチヤートであ
る。
１…内燃機関、８…燃料噴射弁、９…コントロ
ールユニツト、１２…Ｏ２センサ。
FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a diagram showing the overall configuration of an embodiment of the present invention,
FIG. 3 is a diagram showing the circuit configuration of the fuel injection valve driving section of the above embodiment, and FIGS. 4 to 6 are flowcharts showing various control routines in the above embodiment. DESCRIPTION OF SYMBOLS 1... Internal combustion engine, 8... Fuel injection valve, 9... Control unit, 12... O2 sensor.
Claims (1)
において、気筒毎に供給される混合気の空燃比を
検出する気筒別空燃比検出手段を設ける一方、バ
ツテリ電源に接続され抵抗値を微小量ずつ可変に
切り換え自由なドロツピング抵抗を設け、該ドロ
ツピング抵抗により電源電圧を降下させて得られ
る電圧を、前記燃料噴射弁の駆動回路に印加させ
、且つ、前記空燃比検出手段により検出される気
筒毎の空燃比の偏差を演算する空燃比偏差演算手
段と、前記演算された空燃比の偏差に基づいて気
筒毎に適合する燃料噴射弁の駆動電圧を得るドロ
ツピング抵抗の抵抗値を選別する抵抗値選別手段
と、次回噴射される気筒を判別する噴射気筒判別
手段と、前記判別された噴射気筒に対応して前記
抵抗値選別手段により選別された抵抗値となるよ
うにドロツピング抵抗の抵抗値を切換制御する抵
抗値切換制御手段と、を含んで構成したことを特
徴とする内燃機関における気筒別燃料噴射弁の駆
動電圧学習制御装置。 In an internal combustion engine equipped with an electromagnetic fuel injection valve for each cylinder, a cylinder-specific air-fuel ratio detection means is provided to detect the air-fuel ratio of the air-fuel mixture supplied to each cylinder. A dropping resistor that can be freely switched variably is provided, and a voltage obtained by lowering the power supply voltage by the dropping resistor is applied to the drive circuit of the fuel injector, and the voltage is applied to each cylinder detected by the air-fuel ratio detecting means. air-fuel ratio deviation calculating means for calculating the air-fuel ratio deviation; and resistance value selection for selecting the resistance value of a dropping resistor for obtaining a drive voltage for a fuel injector suitable for each cylinder based on the calculated air-fuel ratio deviation. means, an injection cylinder discriminating means for discriminating the next cylinder to be injected, and switching control of the resistance value of the dropping resistor so that the resistance value is selected by the resistance value selecting means corresponding to the discriminated injection cylinder. 1. A drive voltage learning control device for cylinder-specific fuel injection valves in an internal combustion engine, characterized in that the device includes a resistance value switching control means for controlling cylinder-specific fuel injection valves in an internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109488U JPH023039U (en) | 1988-06-21 | 1988-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8109488U JPH023039U (en) | 1988-06-21 | 1988-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023039U true JPH023039U (en) | 1990-01-10 |
Family
ID=31305894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8109488U Pending JPH023039U (en) | 1988-06-21 | 1988-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2013031019A1 (en) * | 2011-09-02 | 2015-03-23 | トヨタ自動車株式会社 | Fuel supply device for internal combustion engine |
| JP2017002857A (en) * | 2015-06-12 | 2017-01-05 | 株式会社デンソー | Injection valve drive device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654928A (en) * | 1979-10-11 | 1981-05-15 | Toyota Motor Corp | Electronic fuel injector for internal combustion engine |
-
1988
- 1988-06-21 JP JP8109488U patent/JPH023039U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654928A (en) * | 1979-10-11 | 1981-05-15 | Toyota Motor Corp | Electronic fuel injector for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2013031019A1 (en) * | 2011-09-02 | 2015-03-23 | トヨタ自動車株式会社 | Fuel supply device for internal combustion engine |
| JP2017002857A (en) * | 2015-06-12 | 2017-01-05 | 株式会社デンソー | Injection valve drive device |