JPS62171636U - - Google Patents
Info
- Publication number
- JPS62171636U JPS62171636U JP5962386U JP5962386U JPS62171636U JP S62171636 U JPS62171636 U JP S62171636U JP 5962386 U JP5962386 U JP 5962386U JP 5962386 U JP5962386 U JP 5962386U JP S62171636 U JPS62171636 U JP S62171636U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- calculation means
- warm
- 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 16
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図はこの考案による内燃機関の冷間時空燃
比制御装置の基本的構成を示す機能ブロツク図、
第２図はこの考案の一実施例を示す内燃機関のシ
ステム構成図、第３図は第２図のコントロールユ
ニツトにおける目標値算出動作を示すフロー図、
第４図は冷間時燃料補正係数ＫＭＲ′と目標値Ｔ
Ｌとの関係を示す線図である。
１……エンジン本体、２……エアクリーナ、３
……吸気管、４……インジエクタ、５……点火プ
ラグ、７……排気管、８……触媒コンバータ、９
……絞り弁、１０……コントロールユニツト、１
１……エアフローメータ、１２……絞り弁開度セ
ンサ、１３……圧力センサ、１４……クランク角
センサ、１５……水温センサ、１６……酸素セン
サ、１７……スワールバルブ。
FIG. 1 is a functional block diagram showing the basic configuration of a cold air-fuel ratio control device for an internal combustion engine according to this invention.
FIG. 2 is a system configuration diagram of an internal combustion engine showing an embodiment of this invention, and FIG. 3 is a flow diagram showing the target value calculation operation in the control unit of FIG.
Figure 4 shows the cold fuel correction coefficient KMR' and the target value T.
It is a diagram showing the relationship with L. 1...Engine body, 2...Air cleaner, 3
... Intake pipe, 4 ... Injector, 5 ... Spark plug, 7 ... Exhaust pipe, 8 ... Catalytic converter, 9
... Throttle valve, 10 ... Control unit, 1
1... Air flow meter, 12... Throttle valve opening sensor, 13... Pressure sensor, 14... Crank angle sensor, 15... Water temperature sensor, 16... Oxygen sensor, 17... Swirl valve.
Claims (1)
応じて暖機後の目標空燃比を与える燃料補正係数
を算出する暖機後燃料補正係数算出手段と、 機関の暖機状態に応じて空燃比の濃化係数を算
出する濃化係数算出手段と、 実際の空燃比を検出する空燃比検出手段と、 前記暖機後燃料補正係数算出手段と濃化係数算
出手段とによつてそれぞれ算出される燃料補正係
数と濃化係数とにより、暖機中の目標空燃比を与
えるための前記空燃比検出手段の出力の目標値を
算出する冷間時目標値算出手段と、 前記空燃比検出手段の出力が前記冷間時目標値
算出手段によつて算出された目標値と一致するよ
うに空燃比をフイードバツク制御する空燃比フイ
ードバツク制御手段とからなることを特徴とする
内燃機関の冷間時空燃比制御装置。[Scope of Claim for Utility Model Registration] A post-warm-up fuel correction coefficient calculation means for calculating a fuel correction coefficient that provides a target air-fuel ratio after warm-up according to operating conditions such as the rotational speed and intake air amount of the internal combustion engine; and an engine. an enrichment coefficient calculation means for calculating an enrichment coefficient of an air-fuel ratio according to a warm-up state of the engine; an air-fuel ratio detection means for detecting an actual air-fuel ratio; the post-warm-up fuel correction coefficient calculation means and an enrichment coefficient calculation means. cold-time target value calculation means for calculating a target value of the output of the air-fuel ratio detection means for giving a target air-fuel ratio during warm-up based on the fuel correction coefficient and the enrichment coefficient respectively calculated by the means; and air-fuel ratio feedback control means for feedback-controlling the air-fuel ratio so that the output of the air-fuel ratio detection means matches the target value calculated by the cold-time target value calculation means. Cold air-fuel ratio control device for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5962386U JPS62171636U (en) | 1986-04-22 | 1986-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5962386U JPS62171636U (en) | 1986-04-22 | 1986-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171636U true JPS62171636U (en) | 1987-10-30 |
Family
ID=30891285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5962386U Pending JPS62171636U (en) | 1986-04-22 | 1986-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171636U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230532A (en) * | 1984-04-28 | 1985-11-16 | Toyota Motor Corp | Air-fuel ratio controller for internal-combustion engine |
-
1986
- 1986-04-22 JP JP5962386U patent/JPS62171636U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60230532A (en) * | 1984-04-28 | 1985-11-16 | Toyota Motor Corp | Air-fuel ratio controller for internal-combustion engine |