JPH0296478U - - Google Patents
Info
- Publication number
- JPH0296478U JPH0296478U JP417989U JP417989U JPH0296478U JP H0296478 U JPH0296478 U JP H0296478U JP 417989 U JP417989 U JP 417989U JP 417989 U JP417989 U JP 417989U JP H0296478 U JPH0296478 U JP H0296478U
- Authority
- JP
- Japan
- Prior art keywords
- time
- reference position
- position signal
- rising edge
- ignition timing
- 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
- 230000000630 rising effect Effects 0.000 claims 9
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 230000010355 oscillation Effects 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
- Electrical Control Of Ignition Timing (AREA)
Description
第１図は本考案による点火時期制御装置を備え
た内燃機関の一つの実施例を示す概略構成図、第
２図は本考案による点火時期制御装置の一つの実
施例を示すブロツク線図、第３図は本考案による
点火時期制御装置に用いられる機関回転数対応の
ハイレベル時間のデータマツプの特性の一例を示
すグラフ、第４図は点火時期制御を含むメインル
ーチンの一例を示すフローチヤート、第５図は本
考案による点火時期制御装置の作動を説明するフ
ローチヤート、第６図は本考案による点火時期制
御装置の作動を説明するタイムチヤートである。
１０…機関本体、１２…ピストン、１４…吸気
ポート、１６…排気ポート、１８…点火プラグ、
２０…吸気マニホールド、２２…サージタンク、
２４…スロツトルバルブ、２６…吸気チユーブ、
２８…エアクリーナ、３０…排気マニホールド、
３２…燃料インジエクタ、３４…デイストリビユ
ータ、３６…イグニツシヨンコイル、３８…イグ
ナイタ、４０…電子制御装置、４２…マイクロプ
ロセツサユニツト、４４…クロツク発振回路、４
６…リードオンリメモリ、４８…ランダムアクセ
スメモリ、５０…タイマ、５２，５４…入出力ポ
ート、５６…Ａ／Ｄ変換器、５８…マルチプレク
サ、６０，６２，６４…バツフア回路、６６…波
形整形回路、６８，７０…駆動回路、７２…吸気
油圧センサ、７４…吸気温センサ、７８…水温セ
ンサ、８０…回転角センサ、８２…ロータ、８４
…電磁コイル手段。
FIG. 1 is a schematic configuration diagram showing one embodiment of an internal combustion engine equipped with an ignition timing control device according to the present invention, and FIG. 2 is a block diagram showing one embodiment of the ignition timing control device according to the present invention. 3 is a graph showing an example of the characteristics of a data map of high-level time corresponding to engine speed used in the ignition timing control device according to the present invention; FIG. 4 is a flowchart showing an example of a main routine including ignition timing control; FIG. 5 is a flowchart illustrating the operation of the ignition timing control device according to the present invention, and FIG. 6 is a time chart illustrating the operation of the ignition timing control device according to the present invention. 10... Engine body, 12... Piston, 14... Intake port, 16... Exhaust port, 18... Spark plug,
20...Intake manifold, 22...Surge tank,
24...throttle valve, 26...intake tube,
28...Air cleaner, 30...Exhaust manifold,
32... Fuel injector, 34... Distributor, 36... Ignition coil, 38... Igniter, 40... Electronic control unit, 42... Microprocessor unit, 44... Clock oscillation circuit, 4
6... Read only memory, 48... Random access memory, 50... Timer, 52, 54... Input/output port, 56... A/D converter, 58... Multiplexer, 60, 62, 64... Buffer circuit, 66... Waveform shaping circuit , 68, 70... Drive circuit, 72... Intake oil pressure sensor, 74... Intake temperature sensor, 78... Water temperature sensor, 80... Rotation angle sensor, 82... Rotor, 84
...Electromagnetic coil means.
Claims (1)
準位置信号を発生する基準位置信号発生回路を有
し、前記基準位置信号の立上りエツジ或いは立下
りエツジを基準として点火時期、点火通電時間の
制御を行う内燃機関用点火時期制御装置に於て、
前記基準位置信号の立上りエツジより立下りエツ
ジまでの時間或いは前記基準位置信号の立下りエ
ツジより立上りエツジまでの時間を検出しこれを
所定クランク角間の時間に対する時間比として記
憶する時間比記憶手段と、前記基準位置信号の立
上りエツジより立下りエツジまでの時間或いは立
下りエツジより立上りエツジまでの時間を機関回
転数に応じて予め記憶しているレベル時間記憶手
段と、前記時間比より次の気筒の基準位置信号の
立上りエツジより立下りエツジまでの時間或いは
立下りエツジより立上りエツジまでの時間を予測
する時間予測手段と、前記時間予測手段により予
測された前記時間を前記レベル時間記憶手段より
の機関回転数に応じた前記時間によつて補正する
時間補正手段と、前記時間補正手段により補正さ
れた時間を基準として点火時期の設定を行う点火
時期設定手段とを有する内燃機関用点火時期制御
装置。 Each cylinder has a reference position signal generation circuit that generates a reference position signal that switches at a predetermined crank angle position, and controls the ignition timing and ignition energization time based on the rising edge or falling edge of the reference position signal. In the ignition timing control device for internal combustion engines,
time ratio storage means for detecting the time from the rising edge to the falling edge of the reference position signal or the time from the falling edge to the rising edge of the reference position signal and storing this as a time ratio to the time between predetermined crank angles; , level time storage means for pre-memorizing the time from the rising edge to the falling edge or from the falling edge to the rising edge of the reference position signal according to the engine speed; time prediction means for predicting the time from the rising edge to the falling edge or the time from the falling edge to the rising edge of the reference position signal; and a time prediction means for predicting the time from the rising edge to the rising edge of the reference position signal; An ignition timing control device for an internal combustion engine, comprising: a time correction means that corrects the time according to the engine speed; and an ignition timing setting means that sets the ignition timing based on the time corrected by the time correction means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417989U JPH0296478U (en) | 1989-01-18 | 1989-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP417989U JPH0296478U (en) | 1989-01-18 | 1989-01-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0296478U true JPH0296478U (en) | 1990-08-01 |
Family
ID=31206462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP417989U Pending JPH0296478U (en) | 1989-01-18 | 1989-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0296478U (en) |
-
1989
- 1989-01-18 JP JP417989U patent/JPH0296478U/ja active Pending
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