JPS57130104A - Method for processing output signal of electronic control device for internal combustion engine - Google Patents

Method for processing output signal of electronic control device for internal combustion engine

Info

Publication number
JPS57130104A
JPS57130104A JP1502081A JP1502081A JPS57130104A JP S57130104 A JPS57130104 A JP S57130104A JP 1502081 A JP1502081 A JP 1502081A JP 1502081 A JP1502081 A JP 1502081A JP S57130104 A JPS57130104 A JP S57130104A
Authority
JP
Japan
Prior art keywords
signals
frequency dividers
signal
period
periods
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
JP1502081A
Other languages
Japanese (ja)
Inventor
Okimichi Okamoto
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.)
NIHON DENSHI KIKI KK
Hitachi Unisia Automotive Ltd
Original Assignee
NIHON DENSHI KIKI KK
Japan Electronic Control Systems 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 NIHON DENSHI KIKI KK, Japan Electronic Control Systems Co Ltd filed Critical NIHON DENSHI KIKI KK
Priority to JP1502081A priority Critical patent/JPS57130104A/en
Publication of JPS57130104A publication Critical patent/JPS57130104A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/30Controlling fuel injection
    • F02D41/32Controlling fuel injection of the low pressure type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control By Computers (AREA)

Abstract

PURPOSE:To observe an output signal waveform in the still state, by setting the period ratio of two comparator output signals to an integral ratio and giving a trigger at a tme point when both output signals are turned on/off synchronously at every time of the least common multiple of their periods. CONSTITUTION:An oscillator I sets output signals (e') and (f') of comparators E and F and oscillates a signal at a period of the least common multiple of periods of both signals, and the output signal of the oscillator I is inputted to frequency dividers J, K, and L. The period of the frequency divider L is set to the least common multiple of periods of output signals (e') and (f') and generates a signal, which resets frequency dividers J and K, at every period of the least common multiple and inputs the signal to frequency dividers J and K. Frequency dividers J and K generate signals of prescribed periods respectively, and these signals are connected to -input terminals of comparators E and F through a saw- tooth wave signal generating and integrating circuit M or N connected in series to frequency dividers J and K.
JP1502081A 1981-02-05 1981-02-05 Method for processing output signal of electronic control device for internal combustion engine Pending JPS57130104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1502081A JPS57130104A (en) 1981-02-05 1981-02-05 Method for processing output signal of electronic control device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1502081A JPS57130104A (en) 1981-02-05 1981-02-05 Method for processing output signal of electronic control device for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS57130104A true JPS57130104A (en) 1982-08-12

Family

ID=11877164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1502081A Pending JPS57130104A (en) 1981-02-05 1981-02-05 Method for processing output signal of electronic control device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS57130104A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938076A (en) * 1972-08-23 1974-04-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938076A (en) * 1972-08-23 1974-04-09

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