JPH0214439U - - Google Patents
Info
- Publication number
- JPH0214439U JPH0214439U JP1988093184U JP9318488U JPH0214439U JP H0214439 U JPH0214439 U JP H0214439U JP 1988093184 U JP1988093184 U JP 1988093184U JP 9318488 U JP9318488 U JP 9318488U JP H0214439 U JPH0214439 U JP H0214439U
- Authority
- JP
- Japan
- Prior art keywords
- intake passage
- passage area
- intake
- set value
- area
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は本考案の構成説明図、第２図は本考案
の一実施例を示す装置全体の概略図、第３図は吸
気制御の具体例を示すフローチヤート、第４図は
スロツトル弁全閉減速運転からアイドル運転に至
る間の、エンジン回転数の変化およびＩＳＣバル
ブに対するデユーテイ信号のデユーテイ値の変化
を示すタイムチヤートである。
Ａ……吸気流路面積調整手段、Ｂ……減速検出
手段、Ｃ……制御手段、Ｄ……ブレーキ検出手段
、Ｅ……面積増加率変更手段、１……エンジン、
１０……バイパス通路、１１……ＩＳＣバルブ、
１３……回転数センサ、１４……スロツトル開度
センサ、１５……ブレーキスイツチ、２０……コ
ントロールユニツト。
Fig. 1 is an explanatory diagram of the configuration of the present invention, Fig. 2 is a schematic diagram of the entire device showing an embodiment of the invention, Fig. 3 is a flowchart showing a specific example of intake control, and Fig. 4 is a complete illustration of the throttle valve. This is a time chart showing changes in the engine speed and changes in the duty value of the duty signal for the ISC valve during the period from closed deceleration operation to idling operation. A...Intake flow path area adjusting means, B...Deceleration detecting means, C...Controlling means, D...Brake detecting means, E...Area increase rate changing means, 1...Engine,
10... Bypass passage, 11... ISC valve,
13...Rotational speed sensor, 14...Throttle opening sensor, 15...Brake switch, 20...Control unit.
Claims (1)
と、スロツトル弁が全閉で、かつエンジン回転数
が設定値以上の減速運転状態を検出する減速検出
手段と、上記減速運転状態にあるときにアイドル
運転時より吸気流路面積を小さくするとともに、
エンジン回転数が設定値より低くなつたときに吸
気流路面積を所定値になるまで次第に増加させる
よう上記吸気流路面積調整手段を制御する制御手
段と、ブレーキ装置の作動状態を検出するブレー
キ検出手段と、このブレーキ検出手段の出力を受
けて、エンジン回転数が設定値より低くなつたと
きの上記制御手段による吸気流路面積の増加率を
、ブレーキ装置の作動時にはブレーキ装置の非作
動時より大きくする面積増加率変更手段とを備え
たことを特徴とするエンジンの吸気制御装置。 an intake passage area adjustment means for adjusting the intake passage area; a deceleration detection means for detecting a deceleration operation state in which the throttle valve is fully closed and the engine rotation speed is a set value or more; In addition to reducing the intake flow path area compared to when operating at idle,
A control means for controlling the intake passage area adjusting means so as to gradually increase the intake passage area until it reaches a predetermined value when the engine speed becomes lower than a set value, and a brake detection means for detecting the operating state of the brake device. and in response to the output of the brake detection means, the rate of increase in the intake flow path area by the control means when the engine speed becomes lower than the set value is determined when the brake device is activated compared to when the brake device is not activated. An intake air control device for an engine, comprising: means for changing an area increase rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988093184U JPH066212Y2 (en) | 1988-07-13 | 1988-07-13 | Engine intake control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988093184U JPH066212Y2 (en) | 1988-07-13 | 1988-07-13 | Engine intake control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214439U true JPH0214439U (en) | 1990-01-30 |
| JPH066212Y2 JPH066212Y2 (en) | 1994-02-16 |
Family
ID=31317632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988093184U Expired - Lifetime JPH066212Y2 (en) | 1988-07-13 | 1988-07-13 | Engine intake control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066212Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04109167U (en) * | 1991-03-08 | 1992-09-21 | フジコピアン株式会社 | ink ribbon cassette |
-
1988
- 1988-07-13 JP JP1988093184U patent/JPH066212Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04109167U (en) * | 1991-03-08 | 1992-09-21 | フジコピアン株式会社 | ink ribbon cassette |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH066212Y2 (en) | 1994-02-16 |