JPS6326748U - - Google Patents
Info
- Publication number
- JPS6326748U JPS6326748U JP11829986U JP11829986U JPS6326748U JP S6326748 U JPS6326748 U JP S6326748U JP 11829986 U JP11829986 U JP 11829986U JP 11829986 U JP11829986 U JP 11829986U JP S6326748 U JPS6326748 U JP S6326748U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- ratio control
- warm
- internal combustion
- 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
- 239000000446 fuel Substances 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims 4
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の構成を説明するための全体ブ
ロツク図、第２図は本考案に係る内燃機関の空燃
比制御装置の一実施例を示す全体概略図、第３図
から第６図は第２図の制御回路の動作を説明する
ためのフローチヤート、第７図は本考案の装置の
動作を補足的に説明するための線図である。
１……機関本体、２……吸気通路、２ｂ……吸
気マニホルド、３……エアフローメータ、４……
デイストリビユータ、５，６……クランク角セン
サ、７……燃料噴射弁、８……排気通路、８ａ…
…排気マニホルド、９……Ｏ２センサ、１０……
制御回路、１１……水温センサ、１２……空気導
入管、１３……逆止弁、１４……ＡＳＶ、１５…
…ＶＳＶ。
FIG. 1 is an overall block diagram for explaining the configuration of the present invention, FIG. 2 is an overall schematic diagram showing an embodiment of an air-fuel ratio control device for an internal combustion engine according to the present invention, and FIGS. 3 to 6 are FIG. 2 is a flowchart for explaining the operation of the control circuit, and FIG. 7 is a diagram for supplementary explanation of the operation of the apparatus of the present invention. 1...Engine body, 2...Intake passage, 2b...Intake manifold, 3...Air flow meter, 4...
Distributor, 5, 6...Crank angle sensor, 7...Fuel injection valve, 8...Exhaust passage, 8a...
...Exhaust manifold, 9... O2 sensor, 10...
Control circuit, 11...Water temperature sensor, 12...Air introduction pipe, 13...Check valve, 14...ASV, 15...
...VSV.
Claims (1)
でのみ２次空気を供給する２次空気供給手段と、 この２次空気供給手段の下流側の排気通路内に
設けられた空燃比センサ手段、及びその下流側に
設けられた触媒と、 前記空燃比センサ手段の出力により空燃比をフ
イードバツク制御する空燃比制御手段と、 触媒温度検出手段と、 機関が暖気状態に達したか否かを判定する暖気
状態検出手段と、 機関が暖気状態に達していない時でかつ触媒温
度が所定値を越えている時に、２次空気の供給を
停止して前記空燃比制御手段に空燃比のフイード
バツク制御を開始させる空燃比制御開始手段と、 を備えた内燃機関の空燃比制御装置。 ２ 前記暖気状態検出手段が機関の吸気通路内に
設けられた吸入空気量検出手段と、この吸入空気
量検出手段の出力を積算する吸入空気量積算手段
とからなり、 触媒温度が所定値を越えているか否かの判定を
吸入空気量積算手段の値が所定値を越えたか否か
で行うことを特徴とする実用新案登録請求の範囲
第１項に記載の内燃機関の空燃比制御装置。[Claims for Utility Model Registration] 1. A secondary air supply means for supplying secondary air into the exhaust passage of an internal combustion engine only in a specific operating state of the engine, and an exhaust passage downstream of the secondary air supply means. an air-fuel ratio sensor means provided, a catalyst provided on the downstream side thereof; an air-fuel ratio control means for feedback-controlling the air-fuel ratio based on the output of the air-fuel ratio sensor means; a catalyst temperature detection means; Warm-up state detection means for determining whether the warm-up state has been reached; and when the engine has not reached the warm-up state and the catalyst temperature exceeds a predetermined value, the air-fuel ratio control means stops supplying the secondary air and controls the air-fuel ratio. An air-fuel ratio control device for an internal combustion engine, comprising: an air-fuel ratio control starting means for starting feedback control of an air-fuel ratio. 2. The warm-up condition detecting means comprises an intake air amount detecting means provided in the intake passage of the engine, and an intake air amount integrating means for integrating the output of the intake air amount detecting means, and the catalyst temperature exceeds a predetermined value. 2. The air-fuel ratio control device for an internal combustion engine according to claim 1, wherein the air-fuel ratio control device for an internal combustion engine is characterized in that the determination as to whether or not the intake air amount accumulating means exceeds a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11829986U JPS6326748U (en) | 1986-08-02 | 1986-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11829986U JPS6326748U (en) | 1986-08-02 | 1986-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326748U true JPS6326748U (en) | 1988-02-22 |
Family
ID=31004624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11829986U Pending JPS6326748U (en) | 1986-08-02 | 1986-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081734A1 (en) * | 2006-12-28 | 2008-07-10 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus for internal combustion engine |
| JP2013129286A (en) * | 2011-12-21 | 2013-07-04 | Toyota Motor Corp | Control device of hybrid vehicle |
-
1986
- 1986-08-02 JP JP11829986U patent/JPS6326748U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008081734A1 (en) * | 2006-12-28 | 2008-07-10 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purifying apparatus for internal combustion engine |
| JP2008163897A (en) * | 2006-12-28 | 2008-07-17 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
| JP2013129286A (en) * | 2011-12-21 | 2013-07-04 | Toyota Motor Corp | Control device of hybrid vehicle |