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JPS575518A - Trouble checking device for car electronics - Google Patents

Trouble checking device for car electronics

Info

Publication number
JPS575518A
JPS575518A JP7770280A JP7770280A JPS575518A JP S575518 A JPS575518 A JP S575518A JP 7770280 A JP7770280 A JP 7770280A JP 7770280 A JP7770280 A JP 7770280A JP S575518 A JPS575518 A JP S575518A
Authority
JP
Japan
Prior art keywords
computer
trouble
outputs
equivalent
car
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
JP7770280A
Other languages
Japanese (ja)
Inventor
Haruo Watanabe
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP7770280A priority Critical patent/JPS575518A/en
Publication of JPS575518A publication Critical patent/JPS575518A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F02B77/083—Safety, indicating, or supervising devices relating to maintenance, e.g. diagnostic device

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To provide capability to check any car trouble which appears intermeittently by equipping an equivalent electronic device to car electronics as regards the output power at the normal time and a judgement circuit which is to judge coincidence of the outputs of the car electronics and the equivalent electronic device. CONSTITUTION:An electronically controlled computor for injection of fuel 1, is fed with signals from a throttle sensor 2, suction air flow sensor 3 and water temp. sensor 4 and sends the output pulses B to the fuel injection valve 5. A trouble checking device 8 is composed of an equivalent computer 9 having the same function as the computer 1, a judgement circuit 10 to judge coincidence of the outputs of computer 1 and equivalent computer 9, and an indicator lamp 11 to indicate incoincedence in these two outputs. The judgement circuit 10 has an exclusive logical sum circuit 12, that gives capability to check even a trouble which yields an erroneous output out intermittently.
JP7770280A 1980-06-11 1980-06-11 Trouble checking device for car electronics Pending JPS575518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7770280A JPS575518A (en) 1980-06-11 1980-06-11 Trouble checking device for car electronics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7770280A JPS575518A (en) 1980-06-11 1980-06-11 Trouble checking device for car electronics

Publications (1)

Publication Number Publication Date
JPS575518A true JPS575518A (en) 1982-01-12

Family

ID=13641225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7770280A Pending JPS575518A (en) 1980-06-11 1980-06-11 Trouble checking device for car electronics

Country Status (1)

Country Link
JP (1) JPS575518A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122561U (en) * 1983-02-04 1984-08-17 三菱自動車工業株式会社 Self-failure diagnosis device
US5987365A (en) * 1995-12-04 1999-11-16 Toyota Jidosha Kabushiki Kaisha Electronic control apparatus for vehicle
KR100379696B1 (en) * 2001-03-13 2003-04-11 주식회사 지. 아이. 티 Method for finding troubles of ecectronic control engine of vehicle by measurement of injection signals and igniion signals
JP2011126327A (en) * 2009-12-15 2011-06-30 Hitachi Automotive Systems Ltd On-vehicle controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122561U (en) * 1983-02-04 1984-08-17 三菱自動車工業株式会社 Self-failure diagnosis device
US5987365A (en) * 1995-12-04 1999-11-16 Toyota Jidosha Kabushiki Kaisha Electronic control apparatus for vehicle
KR100379696B1 (en) * 2001-03-13 2003-04-11 주식회사 지. 아이. 티 Method for finding troubles of ecectronic control engine of vehicle by measurement of injection signals and igniion signals
JP2011126327A (en) * 2009-12-15 2011-06-30 Hitachi Automotive Systems Ltd On-vehicle controller

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