JPS5672317A - Detector for knocking oscillation - Google Patents
Detector for knocking oscillationInfo
- Publication number
- JPS5672317A JPS5672317A JP14845679A JP14845679A JPS5672317A JP S5672317 A JPS5672317 A JP S5672317A JP 14845679 A JP14845679 A JP 14845679A JP 14845679 A JP14845679 A JP 14845679A JP S5672317 A JPS5672317 A JP S5672317A
- Authority
- JP
- Japan
- Prior art keywords
- knocking
- comparator
- circuit
- output
- sensor
- 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
Abstract
PURPOSE: To accurately detect the intensity of knocking, by avoiding the increased amplitude in the sensor output signal accompanied with the production of knocking from a background noise level signal, while knocking is developed.
CONSTITUTION: The output of a knocking sensor 1 is input to a comparator 8 and a rectifier 3 via an amplifier 2 which selects the knocking frequency only and amplifies it. The output of the knocking sensor 1 rectified at the rectifier 3 is input to the comparator 8 via an average circuit 4, sample hold circuit 5, average circuit 6 and amplifier circuit 7. A sample hold circuit 5 holds the output signal of the average circuit 4 at the development of knocking based on a comparison signal obtained from the comparator 8. The pulse train signal from the comparator 8 accurately indicates the knocking intensity.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14845679A JPS5672317A (en) | 1979-11-16 | 1979-11-16 | Detector for knocking oscillation |
GB8032578A GB2061380B (en) | 1979-10-11 | 1980-10-09 | Knocking detector for controlling ignition timing of an internal combustion engine |
US06/195,628 US4423621A (en) | 1979-10-11 | 1980-10-09 | Knocking detector |
DE3038352A DE3038352C2 (en) | 1979-10-11 | 1980-10-10 | Knock detector for an internal combustion engine |
FR8021745A FR2467396A1 (en) | 1979-10-11 | 1980-10-10 | CLICK SENSOR FOR AN INTERNAL COMBUSTION ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14845679A JPS5672317A (en) | 1979-11-16 | 1979-11-16 | Detector for knocking oscillation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5672317A true JPS5672317A (en) | 1981-06-16 |
JPS6152927B2 JPS6152927B2 (en) | 1986-11-15 |
Family
ID=15453164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14845679A Granted JPS5672317A (en) | 1979-10-11 | 1979-11-16 | Detector for knocking oscillation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672317A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59203871A (en) * | 1983-05-04 | 1984-11-19 | Hitachi Ltd | Knocking control device |
JP2007092620A (en) * | 2005-09-28 | 2007-04-12 | Denso Corp | Knocking condition judgment device |
CN106949959A (en) * | 2017-03-17 | 2017-07-14 | 江苏大学 | A kind of method of impulse response signal sound intersity measurement |
-
1979
- 1979-11-16 JP JP14845679A patent/JPS5672317A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59203871A (en) * | 1983-05-04 | 1984-11-19 | Hitachi Ltd | Knocking control device |
JPH0418137B2 (en) * | 1983-05-04 | 1992-03-26 | Hitachi Ltd | |
JP2007092620A (en) * | 2005-09-28 | 2007-04-12 | Denso Corp | Knocking condition judgment device |
JP4663467B2 (en) * | 2005-09-28 | 2011-04-06 | 株式会社デンソー | Knock occurrence state determination device |
CN106949959A (en) * | 2017-03-17 | 2017-07-14 | 江苏大学 | A kind of method of impulse response signal sound intersity measurement |
Also Published As
Publication number | Publication date |
---|---|
JPS6152927B2 (en) | 1986-11-15 |
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