JPS56115866A - Detector of abnormality in ignition signal for internal combustion engine - Google Patents

Detector of abnormality in ignition signal for internal combustion engine

Info

Publication number
JPS56115866A
JPS56115866A JP1797380A JP1797380A JPS56115866A JP S56115866 A JPS56115866 A JP S56115866A JP 1797380 A JP1797380 A JP 1797380A JP 1797380 A JP1797380 A JP 1797380A JP S56115866 A JPS56115866 A JP S56115866A
Authority
JP
Japan
Prior art keywords
abnormality
ignition
indicated
intended range
periodic
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
JP1797380A
Other languages
Japanese (ja)
Inventor
Takashi Wakabayashi
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP1797380A priority Critical patent/JPS56115866A/en
Publication of JPS56115866A publication Critical patent/JPS56115866A/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/06—Indicating unsafe conditions

Abstract

PURPOSE:To make easy and accurate detection of abnormalities in an electrical system which generates ignition signals by a method wherein generating periods of the primary voltage in an ignition coil are monitored at all times and when periodic variations are not within an intended range, occurrence of an abnormality is indicated. CONSTITUTION:This device is provided with control circuits, alarm circuit and at all times monitors generating periods of the primary voltage in the ignition coil and is so constituted that when the periodic variation is not within an intended range abnormality in ignition can be indicated. When the reset terminal of a microcomputer as a control circuit changes from a low level to a high level and programming starts from step 1000 and reaches steps 1010-1014, first, the flag 0 judges 1 or 0. If the flag 0 is set (or, if it is 1), it is shown that the periodic ratio of ignition exceeds the intended range. Then, the programming goes to step 1011 and presence of an error is stored by step 1011 in RAM to be outputted on a display. A buzzer is sounded at step 1012 and occurrence of an abnormality is indicated.
JP1797380A 1980-02-15 1980-02-15 Detector of abnormality in ignition signal for internal combustion engine Pending JPS56115866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1797380A JPS56115866A (en) 1980-02-15 1980-02-15 Detector of abnormality in ignition signal for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1797380A JPS56115866A (en) 1980-02-15 1980-02-15 Detector of abnormality in ignition signal for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS56115866A true JPS56115866A (en) 1981-09-11

Family

ID=11958666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1797380A Pending JPS56115866A (en) 1980-02-15 1980-02-15 Detector of abnormality in ignition signal for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS56115866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119377A (en) * 1983-11-19 1985-06-26 バイエリツシエ　モートーレン　ウエルケ　アクチエンゲゼルシヤフト Inspection of ignition apparatus of internal combustion engine of car

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60119377A (en) * 1983-11-19 1985-06-26 バイエリツシエ　モートーレン　ウエルケ　アクチエンゲゼルシヤフト Inspection of ignition apparatus of internal combustion engine of car

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