JPS5759064A - Knock controller - Google Patents

Knock controller

Info

Publication number
JPS5759064A
JPS5759064A JP13434680A JP13434680A JPS5759064A JP S5759064 A JPS5759064 A JP S5759064A JP 13434680 A JP13434680 A JP 13434680A JP 13434680 A JP13434680 A JP 13434680A JP S5759064 A JPS5759064 A JP S5759064A
Authority
JP
Japan
Prior art keywords
ripples
knocking
circuit
blg
signals
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
JP13434680A
Other languages
Japanese (ja)
Inventor
Yuichi Kashimura
Noboru Sugiura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13434680A priority Critical patent/JPS5759064A/en
Publication of JPS5759064A publication Critical patent/JPS5759064A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/22—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines
    • G01L23/221—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines
    • G01L23/225—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines for detecting or indicating knocks in internal combustion engines circuit arrangements therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Testing Of Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To prevent knocking signal to be attenuated by ripples by providing an autogain control. CONSTITUTION:An autogain control AGC consists of two systems. One of two systems is a knocking signal amplifier circuit, and the other is a BLG output circuit. If BLG which is an output of an integrated circuit 1, including ripples, is directly applied to the input of the AGC circuit, knocking signals are attenuated by ripples. An integrated circuit 3 further averages BLG so as to remove ripples for preventing the attenuation of the knocking signals, and generates input signals to the AGC circuit. Thereby, the attenuation of knocking signals due to ripples is prevented.
JP13434680A 1980-09-29 1980-09-29 Knock controller Pending JPS5759064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13434680A JPS5759064A (en) 1980-09-29 1980-09-29 Knock controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13434680A JPS5759064A (en) 1980-09-29 1980-09-29 Knock controller

Publications (1)

Publication Number Publication Date
JPS5759064A true JPS5759064A (en) 1982-04-09

Family

ID=15126203

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13434680A Pending JPS5759064A (en) 1980-09-29 1980-09-29 Knock controller

Country Status (1)

Country Link
JP (1) JPS5759064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965226A (en) * 1982-10-05 1984-04-13 Toyota Motor Corp Knocking detecting device for internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5965226A (en) * 1982-10-05 1984-04-13 Toyota Motor Corp Knocking detecting device for internal combustion engine

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