JPH0444452U - - Google Patents
Info
- Publication number
- JPH0444452U JPH0444452U JP8633290U JP8633290U JPH0444452U JP H0444452 U JPH0444452 U JP H0444452U JP 8633290 U JP8633290 U JP 8633290U JP 8633290 U JP8633290 U JP 8633290U JP H0444452 U JPH0444452 U JP H0444452U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- detection means
- detecting
- air amount
- egr
- 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
- 238000001514 detection method Methods 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の基本概念図、第２〜４図は本
考案に係る内燃機関のアイドル回転数制御装置の
一実施例を示す図であり、第２図はその全体構成
図、第３図はそのアイドル回転数制御のプログラ
ムを示すフローチヤート、第４図ａ，ｂはそのテ
ーブルマツプである。
１……エンジン、１０……流量制御弁（空気量
可変手段）、２４……クランク角センサ（回転数
検出手段）、２５……水温センサ（エンジン水温
検出手段）、２８……アルコールセンサ（アルコ
ール検出手段）、３０……運転状態検出手段、３
３……ＥＧＲ装置、３４……コントロールユニツ
ト（制御手段、ＥＧＲ判定手段）。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 4 are diagrams showing an embodiment of the idle speed control device for an internal combustion engine according to the present invention, Fig. 2 is an overall configuration diagram thereof, and Fig. 3 is a diagram showing an embodiment of the idle speed control device for an internal combustion engine according to the present invention. The figure is a flowchart showing the idle rotation speed control program, and FIGS. 4a and 4b are table maps thereof. DESCRIPTION OF SYMBOLS 1... Engine, 10... Flow control valve (air amount variable means), 24... Crank angle sensor (rotation speed detection means), 25... Water temperature sensor (engine water temperature detection means), 28... Alcohol sensor (alcohol Detection means), 30... Operating state detection means, 3
3... EGR device, 34... Control unit (control means, EGR determination means).
Claims (1)
温検出手段と、 ｂ エンジンの運転状態を検出する運転状態検出
手段と、 ｃ エンジンの回転数を検出する回転数検出手段
と、 ｄ 燃料中のアルコール濃度を検出するアルコー
ル検出手段と、 ｅ アルコール検出手段の出力に基づき、ＥＧＲ
装置をＯＮ−ＯＦＦするとともに、該ＥＧＲ装置
のＯＮ−ＯＦＦ状態を判定するＥＧＲ判定手段と
、 ｆ エンジンがアイドル状態にあるとき、回転数
検出手段の出力に基づいてアイドル回転数が所定
の目標値となるように空気量可変手段の作動を制
御するフイードバツク制御値を演算し、運転状態
検出手段の出力に基づき空気量可変手段のフイー
ドバツク制御を開始するとともに、前記アルコー
ル濃度、エンジンの冷却水温度およびＥＧＲ装置
のＯＮ−ＯＦＦ状態に応じて所定のテーブルに基
づき空気量可変手段のフイードバツク制御以前の
アイドル回転数の目標値を演算する制御手段と、 ｇ 制御手段の出力に基づいて吸入空気の流量を
変化させてエンジンの回転数を調節する前記空気
量可変手段と、 を備えたことを特徴とする内燃機関のアイドル回
転数制御装置。[Scope of Claim for Utility Model Registration] a. Engine water temperature detection means for detecting the engine cooling water temperature; b. Operating state detection means for detecting the operating state of the engine; c. Rotation speed detection means for detecting the engine rotation speed. , d Alcohol detection means for detecting the alcohol concentration in the fuel; e Based on the output of the alcohol detection means, EGR
an EGR determination means for turning the device ON and OFF and determining the ON-OFF state of the EGR device; A feedback control value is calculated for controlling the operation of the air amount variable means so that a control means for calculating a target value of the idle rotation speed before feedback control of the air amount variable means based on a predetermined table according to the ON-OFF state of the EGR device; g. An idle speed control device for an internal combustion engine, comprising: the air amount variable means that adjusts the engine speed by changing the air amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8633290U JPH0444452U (en) | 1990-08-16 | 1990-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8633290U JPH0444452U (en) | 1990-08-16 | 1990-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444452U true JPH0444452U (en) | 1992-04-15 |
Family
ID=31817948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8633290U Pending JPH0444452U (en) | 1990-08-16 | 1990-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444452U (en) |
-
1990
- 1990-08-16 JP JP8633290U patent/JPH0444452U/ja active Pending