JPS5731005A - Diagnostic result processing method of internal combustion engine - Google Patents

Diagnostic result processing method of internal combustion engine

Info

Publication number
JPS5731005A
JPS5731005A JP10636480A JP10636480A JPS5731005A JP S5731005 A JPS5731005 A JP S5731005A JP 10636480 A JP10636480 A JP 10636480A JP 10636480 A JP10636480 A JP 10636480A JP S5731005 A JPS5731005 A JP S5731005A
Authority
JP
Japan
Prior art keywords
diagnostic result
result
fault
item
case
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
JP10636480A
Other languages
Japanese (ja)
Other versions
JPH0145568B2 (en
Inventor
Minoru Bito
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 JP10636480A priority Critical patent/JPS5731005A/en
Publication of JPS5731005A publication Critical patent/JPS5731005A/en
Publication of JPH0145568B2 publication Critical patent/JPH0145568B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/228—Warning displays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing Of Engines (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE:To make it unnecessary to provide an exclusive output terminal for outputting a diagnostic result, by constituting so that a voltage signal indicating a diagnostic result of a fault is outputted from a terminal which outputs an air fuel ratio adjusting signal, in case when a prescribed signal is applied. CONSTITUTION:In case when a switch 16 is not opened, a CPU32 sends an output value corresponding to the extent of correction of an air fuel ratio, to dudy ratio controlling circuit 46. As a result of diagnosis of a fault, in case when there is a fault in one of sensors 12-1-12-n, a result which is stored in an RAM36 is inputted to the circuit 46 by closing the switch 16, and also an ignition time signal to be inputted to a controlling circuit 44 is set to a fixed value which has been decided in advance. As a result of diagnosis, as for a fault item, voltage which is set to be different in said each item is outputted by a prescribed time each from an output terminal 24. In this way, a diagnostic result of each item is known very easily. Furthermore, since it is unnecessary to provide an exclusive output terminal for outputting a diagnostic result, the number of output terminals is greatly decreased.
JP10636480A 1980-08-04 1980-08-04 Diagnostic result processing method of internal combustion engine Granted JPS5731005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10636480A JPS5731005A (en) 1980-08-04 1980-08-04 Diagnostic result processing method of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10636480A JPS5731005A (en) 1980-08-04 1980-08-04 Diagnostic result processing method of internal combustion engine

Publications (2)

Publication Number Publication Date
JPS5731005A true JPS5731005A (en) 1982-02-19
JPH0145568B2 JPH0145568B2 (en) 1989-10-04

Family

ID=14431670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10636480A Granted JPS5731005A (en) 1980-08-04 1980-08-04 Diagnostic result processing method of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS5731005A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142373U (en) * 1982-03-19 1983-09-26 自動車機器技術研究組合 Diagnostic device for electronically controlled fuel injection system
JPS60147552A (en) * 1984-01-11 1985-08-03 Nippon Denso Co Ltd Vehicle control apparatus having self-diagnosing function
JPS60147553A (en) * 1984-01-11 1985-08-03 Nippon Denso Co Ltd Control apparatus having self-diagnosing function
US5318449A (en) * 1989-06-07 1994-06-07 Electra International Pty. Ltd. Method and apparatus for computer-aided diagnosis of engines
JP2008197960A (en) * 2007-02-14 2008-08-28 Panasonic Ev Energy Co Ltd Circuit with control function and inspection method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58142373U (en) * 1982-03-19 1983-09-26 自動車機器技術研究組合 Diagnostic device for electronically controlled fuel injection system
JPS60147552A (en) * 1984-01-11 1985-08-03 Nippon Denso Co Ltd Vehicle control apparatus having self-diagnosing function
JPS60147553A (en) * 1984-01-11 1985-08-03 Nippon Denso Co Ltd Control apparatus having self-diagnosing function
US5318449A (en) * 1989-06-07 1994-06-07 Electra International Pty. Ltd. Method and apparatus for computer-aided diagnosis of engines
JP2008197960A (en) * 2007-02-14 2008-08-28 Panasonic Ev Energy Co Ltd Circuit with control function and inspection method thereof

Also Published As

Publication number Publication date
JPH0145568B2 (en) 1989-10-04

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