JPS54123983A - Knocking detector of internal combustion engines - Google Patents

Knocking detector of internal combustion engines

Info

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
Application number
JP3143278A
Other languages
Japanese (ja)
Inventor
Norio Omori
Hideya Fujisawa
Yutaka Kawashima
Masakazu Ninomiya
Hisashi Kawai
Muneaki Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Soken Inc
Original Assignee
Nippon Soken Inc
NipponDenso Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc, NipponDenso Co Ltd filed Critical Nippon Soken Inc
Priority to JP3143278A priority Critical patent/JPS54123983A/en
Publication of JPS54123983A publication Critical patent/JPS54123983A/en
Pending legal-status Critical Current

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
JP3143278A 1978-03-17 1978-03-17 Knocking detector of internal combustion engines Pending JPS54123983A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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