JPS63186950U - - Google Patents
Info
- Publication number
- JPS63186950U JPS63186950U JP7817187U JP7817187U JPS63186950U JP S63186950 U JPS63186950 U JP S63186950U JP 7817187 U JP7817187 U JP 7817187U JP 7817187 U JP7817187 U JP 7817187U JP S63186950 U JPS63186950 U JP S63186950U
- Authority
- JP
- Japan
- Prior art keywords
- lower limit
- limit value
- control amount
- control
- water temperature
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims 3
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
第１図は本考案の構成を示すブロツク図、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図は電磁
弁の断面図である。
２０……内燃機関、２６……スロツトル弁、２
９……バイパス通路、３０……電磁弁、３１……
マイクロコンピユータ、３５……回転数センサ、
３６……水温センサ。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a system diagram showing an embodiment of the present invention, FIG. 3 is a flowchart showing control details, and FIG. 4 is a sectional view of a solenoid valve. 20... Internal combustion engine, 26... Throttle valve, 2
9... Bypass passage, 30... Solenoid valve, 31...
Microcomputer, 35...rpm sensor,
36...Water temperature sensor.
Claims (1)
このバイパス通路を流れる空気流量を可変制御す
る制御弁と、機関のアイドル回転数を機関冷却水
温度に応じた目標アイドル回転数にフイードバツ
ク制御すべく前記制御弁の制御量を設定する制御
量設定手段とを備える内燃機関のアイドル回転数
制御装置において、前記制御量設定手段により設
定された制御量を下限値と比較して前記制御弁に
与える制御量の下限値を規制する下限値規制手段
を設ける一方、前記制御量設定手段により設定さ
れた過去の制御量を機関冷却水温度に対応して記
憶する制御量記憶手段と、前記制御量設定手段に
より設定された制御量を前記制御量記憶手段に記
憶された同一機関冷却水温度条件における過去の
制御量と比較してその差の分前記下限値規制手段
の下限値を修正する下限値修正手段とを設けたこ
とを特徴とする内燃機関のアイドル回転数制御装
置。 a bypass passage that bypasses the throttle valve;
A control valve that variably controls the flow rate of air flowing through the bypass passage, and a control amount setting means that sets a control amount of the control valve to feedback control the idle speed of the engine to a target idle speed that corresponds to the engine cooling water temperature. In the idle speed control device for an internal combustion engine, there is provided lower limit value regulation means for comparing the control amount set by the control amount setting means with a lower limit value and regulating the lower limit value of the control amount given to the control valve. On the other hand, a controlled variable storage means stores a past controlled variable set by the controlled variable setting means in correspondence with the engine cooling water temperature; An idling for an internal combustion engine, characterized in that a lower limit value correcting means is provided for comparing the control amount with a past control amount under the same stored engine cooling water temperature condition and correcting the lower limit value of the lower limit value regulating means by the difference thereof. Rotation speed control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7817187U JPS63186950U (en) | 1987-05-26 | 1987-05-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7817187U JPS63186950U (en) | 1987-05-26 | 1987-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63186950U true JPS63186950U (en) | 1988-11-30 |
Family
ID=30926867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7817187U Pending JPS63186950U (en) | 1987-05-26 | 1987-05-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63186950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824664A (en) * | 2019-11-21 | 2021-05-21 | 丰田自动车株式会社 | Control device for internal combustion engine |
-
1987
- 1987-05-26 JP JP7817187U patent/JPS63186950U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824664A (en) * | 2019-11-21 | 2021-05-21 | 丰田自动车株式会社 | Control device for internal combustion engine |
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