JPS57113964A - Knock controller - Google Patents

Knock controller

Info

Publication number
JPS57113964A
JPS57113964A JP18864780A JP18864780A JPS57113964A JP S57113964 A JPS57113964 A JP S57113964A JP 18864780 A JP18864780 A JP 18864780A JP 18864780 A JP18864780 A JP 18864780A JP S57113964 A JPS57113964 A JP S57113964A
Authority
JP
Japan
Prior art keywords
comparator
signal
knock
preset
voltage
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
JP18864780A
Other languages
Japanese (ja)
Other versions
JPS6060034B2 (en
Inventor
Terumi Daimon
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 JP18864780A priority Critical patent/JPS6060034B2/en
Publication of JPS57113964A publication Critical patent/JPS57113964A/en
Publication of JPS6060034B2 publication Critical patent/JPS6060034B2/en
Expired 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)
  • Testing Of Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

PURPOSE:To enable to detect a knock accurately by using a comparator consisting of an AND combination of the first and second comparators, wherein the first comparator employs the average of the outputs from knock sensors as a reference signal, while the second comparator uses a preset voltage. CONSTITUTION:In the case where an inverted input terminal voltage Vco of the comparator 239 is preset at the voltage required for detecting an original knock signal, when a BGL signal is lower than the preset voltage Vco the output from the comparator 238 is given priority because of the ANS combination of the comparators 236, 238, so that a knocking pulse (a pulse train signal) is outputted at a connecting poit PI only when the original knock signal is supplied. On the other hand, when the engine revolution rate is incareased and the BGL voltage level is raised above the preset voltage Vco to reach such a level that the knock signal can be detected, the output of the comparator 236 is preferentially outputted.
JP18864780A 1980-12-29 1980-12-29 Knock control device Expired JPS6060034B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18864780A JPS6060034B2 (en) 1980-12-29 1980-12-29 Knock control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18864780A JPS6060034B2 (en) 1980-12-29 1980-12-29 Knock control device

Publications (2)

Publication Number Publication Date
JPS57113964A true JPS57113964A (en) 1982-07-15
JPS6060034B2 JPS6060034B2 (en) 1985-12-27

Family

ID=16227373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18864780A Expired JPS6060034B2 (en) 1980-12-29 1980-12-29 Knock control device

Country Status (1)

Country Link
JP (1) JPS6060034B2 (en)

Also Published As

Publication number Publication date
JPS6060034B2 (en) 1985-12-27

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