JPH01125835U - - Google Patents
Info
- Publication number
- JPH01125835U JPH01125835U JP2001388U JP2001388U JPH01125835U JP H01125835 U JPH01125835 U JP H01125835U JP 2001388 U JP2001388 U JP 2001388U JP 2001388 U JP2001388 U JP 2001388U JP H01125835 U JPH01125835 U JP H01125835U
- Authority
- JP
- Japan
- Prior art keywords
- duty
- auxiliary air
- throttle valve
- low load
- detection means
- 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 4
- 230000001133 acceleration Effects 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000007423 decrease Effects 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機能ブロツク図、
第２図は本考案の一実施例を示すシステム図、第
３図は制御内容を示すフローチヤート、第４図は
従来の問題点を示す線図である。
３…スロツトル弁、４…補助空気通路、５…補
助空気制御弁、８…機関、９…コントロールユニ
ツト、１０…回転数センサ、１１…スロツトルセ
ンサ、１２…アイドルスイツチ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
FIG. 2 is a system diagram showing an embodiment of the present invention, FIG. 3 is a flowchart showing control details, and FIG. 4 is a line diagram showing conventional problems. 3...Throttle valve, 4...Auxiliary air passage, 5...Auxiliary air control valve, 8...Engine, 9...Control unit, 10...Rotational speed sensor, 11...Throttle sensor, 12...Idle switch.
Claims (1)
磁式の補助空気制御弁を備え、この補助空気制御
弁へのデユーテイを制御することにより補助空気
量を制御する内燃機関の補助空気量制御装置であ
つて、スロツトル弁の開時に機関回転数に応じて
ダツシユポツトデユーテイ分を設定するダツシユ
ポツトデユーテイ分設定手段と、スロツトル弁の
全閉時にダツシユポツトデユーテイ分を時間経過
と共に減少させるダツシユポツトデユーテイ分漸
減手段と、補助空気制御弁へのデユーテイにダツ
シユポツトデユーテイ分を加算するデユーテイ演
算手段とを有するものにおいて、スロツトル弁開
度の変化率より加速状態を検出する加速検出手段
と、スロツトル弁開度が機関回転数に応じて定ま
る所定値以下の低負荷状態を検出する低負荷検出
手段と、これらの検出手段による加速かつ低負荷
状態の検出時にダツシユポツトデユーテイ分を所
定値にクランプするダツシユポツトデユーテイ分
クランプ手段とを設けたことを特徴とする内燃機
関の補助空気量制御装置。 An auxiliary air amount control device for an internal combustion engine that includes an electromagnetic auxiliary air control valve in an auxiliary air passage that bypasses a throttle valve, and controls the amount of auxiliary air by controlling the duty to the auxiliary air control valve, A dartspot duty setting means that sets a dartspot duty according to the engine speed when the throttle valve is opened, and decreases the dartspot duty over time when the throttle valve is fully closed. and a duty calculating means for adding the dart pot duty to the duty to the auxiliary air control valve. An acceleration detection means for detecting an acceleration detection means, a low load detection means for detecting a low load state in which the throttle valve opening is less than a predetermined value determined according to the engine speed, and a low load detection means for detecting a low load state in which the throttle valve opening is less than a predetermined value determined according to the engine speed, and a dash What is claimed is: 1. An auxiliary air amount control device for an internal combustion engine, comprising: a pot duty clamping means for clamping a pot duty to a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001388U JPH01125835U (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001388U JPH01125835U (en) | 1988-02-19 | 1988-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01125835U true JPH01125835U (en) | 1989-08-28 |
Family
ID=31236029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001388U Pending JPH01125835U (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01125835U (en) |
-
1988
- 1988-02-19 JP JP2001388U patent/JPH01125835U/ja active Pending