JPH01179148U - - Google Patents
Info
- Publication number
- JPH01179148U JPH01179148U JP7524288U JP7524288U JPH01179148U JP H01179148 U JPH01179148 U JP H01179148U JP 7524288 U JP7524288 U JP 7524288U JP 7524288 U JP7524288 U JP 7524288U JP H01179148 U JPH01179148 U JP H01179148U
- Authority
- JP
- Japan
- Prior art keywords
- amount
- correction amount
- feedback correction
- auxiliary air
- idle operation
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
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図はアイドル回転数制御ルーチンのフローチヤ
ート、第４図は本考案の作用を示す図、第５図は
従来の問題点を示す図である。
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…アイドルスイ
ツチ、１２…水温センサ。
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 of the idle speed control routine, Fig. 4 is a diagram showing the operation of the present invention, and Fig. 5 shows the problems of the conventional method. It is a diagram. 3... Throttle valve, 4... Auxiliary air passage, 5... Auxiliary air control valve, 8... Engine, 9... Control unit, 10... Rotational speed sensor, 11... Idle switch, 12... Water temperature sensor.
Claims (1)
助空気制御弁を備え、この補助空気制御弁への制
御量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、機関冷
却水温に基づいて基本制御量を設定する基本制御
量設定手段と、アイドル運転条件を検出するアイ
ドル運転条件検出手段と、前記アイドル運転条件
検出手段によるアイドル運転条件の検出時に機関
回転数を目標アイドル回転数と比較して比較結果
に基づきフイードバツク補正量を増減して設定す
るフイードバツク補正量設定手段と、前記アイド
ル運転条件検出手段によつてアイドル運転条件が
検出されないときに前記フイードバツク補正量を
クランプするフイードバツク補正量クランプ手段
と、前記各設定手段により設定された基本制御量
およびフイードバツク補正量に基づいて補助空気
制御弁に出力する最終的な制御量を演算する制御
量演算手段とを有するものにおいて、前記フイー
ドバツク補正量クランプ手段によるフイードバツ
ク補正量のクランプ値を所定値と比較して判定す
るクランプ値判定手段と、前記クランプ値判定手
段によりフイードバツク補正量のクランプ値が所
定値より大きいと判定されたときにクランプ値を
キヤンセルしてフイードバツク補正量を０にする
クランプ値キヤンセル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 is equipped with an auxiliary air control valve in an auxiliary air passage that bypasses a throttle valve, and controls the amount of auxiliary air by controlling the amount of control to this auxiliary air control valve. basic control amount setting means for setting a basic control amount based on water temperature; idle operation condition detection means for detecting idle operation conditions; and when the idle operation condition detection means detects the idle operation conditions, the engine speed is set to the target idle speed a feedback correction amount setting means for increasing or decreasing the feedback correction amount based on the comparison result, and a feedback correction amount setting means for clamping the feedback correction amount when the idle operation condition is not detected by the idle operation condition detection means. In the device comprising a correction amount clamping means and a control amount calculation means for calculating a final control amount to be output to the auxiliary air control valve based on the basic control amount and feedback correction amount set by each of the setting means, a clamp value determining means for determining a clamp value of the feedback correction amount by the feedback correction amount clamping means by comparing it with a predetermined value; and when the clamp value determining means determines that the clamp value of the feedback correction amount is larger than the predetermined value. 1. An auxiliary air amount control device for an internal combustion engine, comprising a clamp value canceling means for canceling a clamp value and setting a feedback correction amount to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7524288U JPH01179148U (en) | 1988-06-08 | 1988-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7524288U JPH01179148U (en) | 1988-06-08 | 1988-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01179148U true JPH01179148U (en) | 1989-12-22 |
Family
ID=31300313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7524288U Pending JPH01179148U (en) | 1988-06-08 | 1988-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01179148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141655A1 (en) * | 1990-12-17 | 1992-07-09 | Japan Electronic Control Syst | IDLE SPEED CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE |
| DE4327912C1 (en) * | 1993-08-19 | 1994-09-22 | Unisia Jecs Corp | Engine idling speed control module |
| DE4327702C1 (en) * | 1993-08-18 | 1994-09-29 | Unisia Jecs Corp | Engine idling speed control module |
-
1988
- 1988-06-08 JP JP7524288U patent/JPH01179148U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141655A1 (en) * | 1990-12-17 | 1992-07-09 | Japan Electronic Control Syst | IDLE SPEED CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE |
| DE4327702C1 (en) * | 1993-08-18 | 1994-09-29 | Unisia Jecs Corp | Engine idling speed control module |
| DE4327912C1 (en) * | 1993-08-19 | 1994-09-22 | Unisia Jecs Corp | Engine idling speed control module |