JPS54123983A - Knocking detector of internal combustion engines - Google Patents
Knocking detector of internal combustion enginesInfo
- Publication number
- JPS54123983A JPS54123983A JP3143278A JP3143278A JPS54123983A JP S54123983 A JPS54123983 A JP S54123983A JP 3143278 A JP3143278 A JP 3143278A JP 3143278 A JP3143278 A JP 3143278A JP S54123983 A JPS54123983 A JP S54123983A
- Authority
- JP
- Japan
- Prior art keywords
- outputs
- vibration
- thru
- mean value
- detector
- 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
- Measuring Fluid Pressure (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Of Engines (AREA)
- Electrical Control Of Ignition Timing (AREA)
Abstract
PURPOSE: To detect knocking intensities accurately in the revolution number range from low to high speeds by comparing the vibration mean value outputs and vibration outputs in the specified crank angle range before the neighborhood of the top dead center of an internal combustion engine.
CONSTITUTION: Either of the vibration mean value outputs from the before-top- dead-center vibration mean value operating circuits 12d thru g, arithmetic circuits 12d thru g which output the mean values of the vibration outputs from a vibrator detector 9 or the vibration outputs from the detector 9 within the specified crank angle range before the neighborhood of the top dead center of an interanl combustion engine are multiplied by a constant number to mutually different values and the circuits 12h-1 thru 5 which compare the vibration mean value outputs from the arithmetic circuits 12d thru g and the vibration outputs from the detector 9 and the outputs having been multiplied by a constant number are provided, whereby the output signals K1 thru K5 corresponding to respective knocking intensities are generated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3143278A JPS54123983A (en) | 1978-03-17 | 1978-03-17 | Knocking detector of internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3143278A JPS54123983A (en) | 1978-03-17 | 1978-03-17 | Knocking detector of internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54123983A true JPS54123983A (en) | 1979-09-26 |
Family
ID=12331065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3143278A Pending JPS54123983A (en) | 1978-03-17 | 1978-03-17 | Knocking detector of internal combustion engines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54123983A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5675965A (en) * | 1979-11-21 | 1981-06-23 | Hitachi Ltd | Ignition timing controller of internal combustion engine |
US4356551A (en) * | 1979-09-05 | 1982-10-26 | Nippon Soken, Inc. | Knock detecting method |
JPS58104368A (en) * | 1981-12-14 | 1983-06-21 | Toyota Motor Corp | Firing timing control method of internal-combustion engine |
JPS6114472A (en) * | 1984-06-29 | 1986-01-22 | Nissan Motor Co Ltd | Controller for internal-combustion engine |
-
1978
- 1978-03-17 JP JP3143278A patent/JPS54123983A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4356551A (en) * | 1979-09-05 | 1982-10-26 | Nippon Soken, Inc. | Knock detecting method |
JPS5675965A (en) * | 1979-11-21 | 1981-06-23 | Hitachi Ltd | Ignition timing controller of internal combustion engine |
JPS58104368A (en) * | 1981-12-14 | 1983-06-21 | Toyota Motor Corp | Firing timing control method of internal-combustion engine |
JPH0252113B2 (en) * | 1981-12-14 | 1990-11-09 | Toyota Motor Co Ltd | |
JPS6114472A (en) * | 1984-06-29 | 1986-01-22 | Nissan Motor Co Ltd | Controller for internal-combustion engine |
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