JPS5593028A - Knocking detector - Google Patents

Knocking detector

Info

Publication number
JPS5593028A
JPS5593028A JP47579A JP47579A JPS5593028A JP S5593028 A JPS5593028 A JP S5593028A JP 47579 A JP47579 A JP 47579A JP 47579 A JP47579 A JP 47579A JP S5593028 A JPS5593028 A JP S5593028A
Authority
JP
Japan
Prior art keywords
signal
output
circuit
ignition
vibration
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
Application number
JP47579A
Other languages
Japanese (ja)
Other versions
JPS6359095B2 (en
Inventor
Tadayoshi Makino
Juhei Takahashi
Kenzo Miura
Eiichiro Murata
Yoshio Katayama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP47579A priority Critical patent/JPS5593028A/en
Publication of JPS5593028A publication Critical patent/JPS5593028A/en
Publication of JPS6359095B2 publication Critical patent/JPS6359095B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE: To make it possible to detect a knocking state accurately by combining together two signals, an ignition signal obtained from an igniter (ignition synchronous pickup) output, etc., and a detection signal of engine vibration.
CONSTITUTION: A signal component of 6W9kHz is selected by selective amplifier 2 from a vibration component of an engine detected by vibration pickup 1 and then supplied to gates 3 and 4. On the other hand, the output of the ignition synchronous pickup is applied to circuit 5 to generate timing signal (a), and gates 3 and 4 are opened at t1 and t3, and t2 and t4 respectively by signal (a) and a signal from inverter 6. The output signal of this gate 3 is applied to peak holding circuit 8 via attenuator 7 while that of gate 4 is applied direct to peak holding circuit 9, and outputs of circuits 8 and 9 are compared each other by comparator 10. The output of comparator 10 is read by FF circuit 11 at the timing of synchronizing signal (c), so that a signal showing a knocking state will appear at output terminal 12.
COPYRIGHT: (C)1980,JPO&Japio
JP47579A 1979-01-05 1979-01-05 Knocking detector Granted JPS5593028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP47579A JPS5593028A (en) 1979-01-05 1979-01-05 Knocking detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47579A JPS5593028A (en) 1979-01-05 1979-01-05 Knocking detector

Publications (2)

Publication Number Publication Date
JPS5593028A true JPS5593028A (en) 1980-07-15
JPS6359095B2 JPS6359095B2 (en) 1988-11-17

Family

ID=11474798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47579A Granted JPS5593028A (en) 1979-01-05 1979-01-05 Knocking detector

Country Status (1)

Country Link
JP (1) JPS5593028A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740617A (en) * 1980-08-25 1982-03-06 Ngk Spark Plug Co Ltd Knocking detection circuit for internal combustion engine
JPS57126050U (en) * 1981-01-30 1982-08-06
JPS58500180A (en) * 1981-02-19 1983-02-03 ロ−ベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method for detecting instability of combustion process in internal combustion engine and device for implementing this method
JPS58139046A (en) * 1982-02-15 1983-08-18 Matsushita Electric Ind Co Ltd Detector for knocking
JPS58139047A (en) * 1982-02-15 1983-08-18 Matsushita Electric Ind Co Ltd Detector for knocking
JPS58187831A (en) * 1982-04-27 1983-11-02 Nec Corp Knocking signal processing circuit
JPS58225340A (en) * 1982-06-25 1983-12-27 Nec Corp Circuit for treating knocking signal
JPS59164939A (en) * 1983-03-10 1984-09-18 Tohoku Metal Ind Ltd Knocking signal processing circuit
JPS6033026A (en) * 1983-08-04 1985-02-20 Toyota Motor Corp Method and device for detecting knocking of internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487307A (en) * 1977-12-22 1979-07-11 Nippon Denso Co Ltd Knocking detector for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487307A (en) * 1977-12-22 1979-07-11 Nippon Denso Co Ltd Knocking detector for internal combustion engine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6352690B2 (en) * 1980-08-25 1988-10-19 Ngk Spark Plug Co
JPS5740617A (en) * 1980-08-25 1982-03-06 Ngk Spark Plug Co Ltd Knocking detection circuit for internal combustion engine
JPS57126050U (en) * 1981-01-30 1982-08-06
JPS58500180A (en) * 1981-02-19 1983-02-03 ロ−ベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Method for detecting instability of combustion process in internal combustion engine and device for implementing this method
JPH0312249B2 (en) * 1981-08-11 1991-02-19 Bosch Gmbh Robert
JPS58139046A (en) * 1982-02-15 1983-08-18 Matsushita Electric Ind Co Ltd Detector for knocking
JPS58139047A (en) * 1982-02-15 1983-08-18 Matsushita Electric Ind Co Ltd Detector for knocking
JPH0413649B2 (en) * 1982-02-15 1992-03-10 Matsushita Electric Ind Co Ltd
JPH0413650B2 (en) * 1982-02-15 1992-03-10 Matsushita Electric Ind Co Ltd
JPS58187831A (en) * 1982-04-27 1983-11-02 Nec Corp Knocking signal processing circuit
JPS58225340A (en) * 1982-06-25 1983-12-27 Nec Corp Circuit for treating knocking signal
JPS59164939A (en) * 1983-03-10 1984-09-18 Tohoku Metal Ind Ltd Knocking signal processing circuit
JPS6033026A (en) * 1983-08-04 1985-02-20 Toyota Motor Corp Method and device for detecting knocking of internal combustion engine
JPH0326779B2 (en) * 1983-08-04 1991-04-11 Toyota Jidosha Kk

Also Published As

Publication number Publication date
JPS6359095B2 (en) 1988-11-17

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