JPH0442244U - - Google Patents
Info
- Publication number
- JPH0442244U JPH0442244U JP8470490U JP8470490U JPH0442244U JP H0442244 U JPH0442244 U JP H0442244U JP 8470490 U JP8470490 U JP 8470490U JP 8470490 U JP8470490 U JP 8470490U JP H0442244 U JPH0442244 U JP H0442244U
- Authority
- JP
- Japan
- Prior art keywords
- gate
- valve timing
- engine
- crank angle
- detecting
- 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 description 13
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の係る内燃機関のノツク検出装
置を全体的に示す説明図、第２図は第１図装置中
の制御ユニツトの詳細を示す説明ブロツク図、第
３図はその中のノツク検出回路の動作を示す説明
波形図、第４図は可変バルブタイミング機構の油
圧切換装置を示す説明断面図、第５図は可変バル
ブタイミングの制御動作を一般的に示す説明フロ
ー・チヤート、第６図はその切換特性を示す説明
図、第７図は本考案に係る内燃機関のノツク検出
装置の動作を示すフロー・チヤート、第８図はゲ
ート区間の設定を示す説明図、第９図は低バルブ
タイミング域における第８図中のインタバルゲー
トＡの特性を示す説明図及び第１０図は高バルブ
タイミング域における同様の特性を示す説明図で
ある。
１０……内燃機関、１２……吸気管、１４……
スロツトル弁、１８……シリンダヘツド、２０…
…吸気ポート、２２……燃焼室、２４……ピスト
ン、２６……点火プラグ、２８……排気ポート、
３０……排気管、３２……スロツトル位置センサ
、３４……吸気圧力センサ、３６……吸気温セン
サ、３８……シリンダブロツク、４０……冷却水
通路、４２……水温センサ、４４……ノツクセン
サ、４６……デイストリビユータ、４８……クラ
ンク角センサ、５０……車速センサ、５２……制
御ユニツト、５４……吸気弁、５６……排気弁、
６０……可変バルブタイミング機構、６２……点
火装置、６４……レベル変換回路、６６……マイ
クロ・コンピユータ、６８……波形整形回路、７
０……ノツク検出回路、７２，７４……出力回路
、６００……油圧スイツチ、６１２……ロツカシ
ヤフト、６１４，６１６，６１８……ロツカアー
ム、６３２……穴、６３４，６３６……孔、６４
０，６４２……連結ピン、６４４……規制ピン、
６４６……油室、６４８……分岐路、６５０……
油路、６５２……バネ、６５４……連通路、６６
０……油圧切換機構、６６２……スプール弁、６
６４……入口ポート、６６６……出口ポート、６
６８……オリフイス孔、６７０……バイパスポー
ト、６７２，６７４……管路、６８０……電磁弁
。
FIG. 1 is an explanatory diagram showing the entire knock detection device for an internal combustion engine according to the present invention, FIG. 2 is an explanatory block diagram showing details of the control unit in the device shown in FIG. 1, and FIG. FIG. 4 is an explanatory waveform diagram showing the operation of the detection circuit. FIG. 4 is an explanatory sectional view showing the hydraulic switching device of the variable valve timing mechanism. FIG. 5 is an explanatory flow chart generally showing the control operation of the variable valve timing. Fig. 7 is an explanatory diagram showing the switching characteristics, Fig. 7 is a flow chart showing the operation of the knock detection device for an internal combustion engine according to the present invention, Fig. 8 is an explanatory diagram showing the setting of the gate section, and Fig. 9 is an explanatory diagram showing the setting of the gate section. An explanatory diagram showing the characteristics of the interval gate A in FIG. 8 in the valve timing region, and FIG. 10 are explanatory diagrams showing the similar characteristics in the high valve timing region. 10... Internal combustion engine, 12... Intake pipe, 14...
Throttle valve, 18... Cylinder head, 20...
...Intake port, 22...Combustion chamber, 24...Piston, 26...Spark plug, 28...Exhaust port,
30... Exhaust pipe, 32... Throttle position sensor, 34... Intake pressure sensor, 36... Intake temperature sensor, 38... Cylinder block, 40... Cooling water passage, 42... Water temperature sensor, 44... Nok sensor , 46...distributor, 48...crank angle sensor, 50...vehicle speed sensor, 52...control unit, 54...intake valve, 56...exhaust valve,
60... Variable valve timing mechanism, 62... Ignition device, 64... Level conversion circuit, 66... Micro computer, 68... Waveform shaping circuit, 7
0... Knock detection circuit, 72, 74... Output circuit, 600... Hydraulic switch, 612... Locker shaft, 614, 616, 618... Locker arm, 632... Hole, 634, 636... Hole, 64
0,642...Connection pin, 644...Regulation pin,
646...oil room, 648...branch road, 650...
Oil path, 652...Spring, 654...Communication path, 66
0...Hydraulic switching mechanism, 662...Spool valve, 6
64...Inlet port, 666...Outlet port, 6
68... Orifice hole, 670... Bypass port, 672, 674... Pipe line, 680... Solenoid valve.
Claims (1)
とも一方のバルブタイミング及び／又はリフト量
を複数の特性の間で選択的に変更するバルブタイ
ミング機構を備える内燃機関のノツク検出装置お
いて、 ａ 機関に発生する振動レベルを検出する振動レ
ベル検出手段、 ｂ 該振動レベル検出手段の出力を入力して機関
に発生するノツクを検出するノツク検出手段、 ｃ 機関のクランク角度を検出するクランク角検
出手段、 ｄ 該クランク角検出手段の出力を入力し、所定
のクランク角範囲においてノツク検出用の第１の
ゲート区間と機関のノイズ振動検出用の第２のゲ
ート区間とを前記バルブタイミング機構の動作特
性に応じてそれぞれ設定し、それらのゲート区間
において前記振動レベル検出手段の出力をノツク
検出手段に送出するゲート設定手段、 及び ｅ 前記可変バルブタイミング機構に指令される
動作特性を判別する動作特性判別手段、 を備え、前記ゲート設定手段は該動作特性判別手
段の出力を入力し、指令される動作特性が切り換
えられるときは、それに応じて前記ゲート特性を
変更する様にしたことを特徴とする内燃機関のノ
ツク検出装置。[Claims for Utility Model Registration] An internal combustion engine equipped with a valve timing mechanism that selectively changes the valve timing and/or lift amount of at least one of the intake and exhaust valves between a plurality of characteristics depending on the operating state of the internal combustion engine. The knock detection device includes: a vibration level detection means for detecting the vibration level generated in the engine; b knock detection means for inputting the output of the vibration level detection means to detect knocks generated in the engine; and c crank angle of the engine. a crank angle detecting means for detecting; d inputting the output of the crank angle detecting means, and detecting a first gate section for knock detection and a second gate section for engine noise vibration detection in a predetermined crank angle range; gate setting means that is set according to the operating characteristics of the valve timing mechanism and sends the output of the vibration level detection means to the knock detection means in the gate sections; and (e) operating characteristics that are commanded to the variable valve timing mechanism. The gate setting means inputs the output of the operating characteristic determining means, and when the commanded operating characteristic is switched, changes the gate characteristic accordingly. A knock detection device for an internal combustion engine characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990084704U JP2525859Y2 (en) | 1990-08-11 | 1990-08-11 | Knock detection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990084704U JP2525859Y2 (en) | 1990-08-11 | 1990-08-11 | Knock detection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442244U true JPH0442244U (en) | 1992-04-09 |
| JP2525859Y2 JP2525859Y2 (en) | 1997-02-12 |
Family
ID=31633353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990084704U Expired - Lifetime JP2525859Y2 (en) | 1990-08-11 | 1990-08-11 | Knock detection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2525859Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267243A (en) * | 2007-04-19 | 2008-11-06 | Mitsubishi Electric Corp | Knock detection device for internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118838A (en) * | 1984-07-06 | 1986-01-27 | Mazda Motor Corp | Apparatus for detecting knocking of engine |
| JPH02102347A (en) * | 1988-10-11 | 1990-04-13 | Honda Motor Co Ltd | Knocking control device for internal combustion engine |
-
1990
- 1990-08-11 JP JP1990084704U patent/JP2525859Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118838A (en) * | 1984-07-06 | 1986-01-27 | Mazda Motor Corp | Apparatus for detecting knocking of engine |
| JPH02102347A (en) * | 1988-10-11 | 1990-04-13 | Honda Motor Co Ltd | Knocking control device for internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008267243A (en) * | 2007-04-19 | 2008-11-06 | Mitsubishi Electric Corp | Knock detection device for internal combustion engine |
| JP4482571B2 (en) * | 2007-04-19 | 2010-06-16 | 三菱電機株式会社 | Knock detection device for internal combustion engine |
| US7856308B2 (en) | 2007-04-19 | 2010-12-21 | Mitsubishi Electric Corporation | Knock detection apparatus for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2525859Y2 (en) | 1997-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |