JPS5677557A - Ignition device - Google Patents
Ignition deviceInfo
- Publication number
- JPS5677557A JPS5677557A JP15426379A JP15426379A JPS5677557A JP S5677557 A JPS5677557 A JP S5677557A JP 15426379 A JP15426379 A JP 15426379A JP 15426379 A JP15426379 A JP 15426379A JP S5677557 A JPS5677557 A JP S5677557A
- Authority
- JP
- Japan
- Prior art keywords
- knocking
- output
- pass filter
- band
- signal
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
PURPOSE: To improve the detection accuracy in the ignition device with a knocking sensor by detecting a knocking signal from a comparison of the knocking sensor output as it is outputted from the knocking sensor and an averaged value of the knocking sensor output.
CONSTITUTION: There is provided the knocking sensor NS which detects electrically the vibration of an engine and provides a detection signal. The detection signal is fed into a high-pass filter HPF and band-pass filter BPF, by which the knocking frequency included in the detection signal is discriminated. The output from the band- pass filter BPF is half-wave rectified by a half-wave rectifier HR and inputted into a capacitor C9 via an amplifier AMP2. The output from the capacitor C9 is inputted into one input terminal of a comparator CO1 via an amplifier AMP3. The other input terminal of the comparator CO1 is supplied with the output from the band- pass filter BPF. The comparator CO1 compares the both inputs, and only when the input from the capacitor C9 is larger than the input from the band-pass filter BPF, outputs the comparison result as a knocking signal. When the knocking signal is outputted, an output terminal Vout of knocking control circuit NC provides an output for lagging the ignition timing later than the ignition timing at that time.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15426379A JPS5677557A (en) | 1979-11-30 | 1979-11-30 | Ignition device |
| US06/211,288 US4495918A (en) | 1979-11-30 | 1980-11-28 | Ignition timing retard angle control apparatus for internal combustion engine |
| DE3045178A DE3045178C2 (en) | 1979-11-30 | 1980-12-01 | Ignition timing control for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15426379A JPS5677557A (en) | 1979-11-30 | 1979-11-30 | Ignition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5677557A true JPS5677557A (en) | 1981-06-25 |
Family
ID=15580355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15426379A Pending JPS5677557A (en) | 1979-11-30 | 1979-11-30 | Ignition device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58160551A (en) * | 1981-09-09 | 1983-09-24 | アンスチチュ フランセ ドュ ペトロール | Method of automatically controlling combustion starting command point of internal combustion engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616274A (en) * | 1984-03-27 | 1986-01-11 | ライボルト−ヘレ−ウス・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Supporting device for substrate |
-
1979
- 1979-11-30 JP JP15426379A patent/JPS5677557A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS616274A (en) * | 1984-03-27 | 1986-01-11 | ライボルト−ヘレ−ウス・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Supporting device for substrate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58160551A (en) * | 1981-09-09 | 1983-09-24 | アンスチチュ フランセ ドュ ペトロール | Method of automatically controlling combustion starting command point of internal combustion engine |
| JPH0583749B2 (en) * | 1981-09-09 | 1993-11-29 | Ansuchi* Furanse Deyu Petorooru |
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