JPS5529046A - Ignition system diagnosing system - Google Patents

Ignition system diagnosing system

Info

Publication number
JPS5529046A
JPS5529046A JP10176978A JP10176978A JPS5529046A JP S5529046 A JPS5529046 A JP S5529046A JP 10176978 A JP10176978 A JP 10176978A JP 10176978 A JP10176978 A JP 10176978A JP S5529046 A JPS5529046 A JP S5529046A
Authority
JP
Japan
Prior art keywords
ignition
circuit
peak hold
output
hold circuit
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
JP10176978A
Other languages
Japanese (ja)
Inventor
Hiroyuki Sugao
Akira Hasegawa
Kenichi Yamaguchi
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.)
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
Original Assignee
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
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 Automob Antipollut & Saf Res Center, Automobile Appliance Anti Pollution and Safety Research Center filed Critical Automob Antipollut & Saf Res Center
Priority to JP10176978A priority Critical patent/JPS5529046A/en
Publication of JPS5529046A publication Critical patent/JPS5529046A/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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

PURPOSE:To properly secure ignition condition by detecting discharge energy of ignition plugs in the engine working condition. CONSTITUTION:When an ignition switch 1a has been set ON, ignition plugs 7 are set ON or OFF according to a contactor 3 which is set OFF or ON. Discharge current when the ignition plug 7 is set ON is detected by a current detector 10, which is integrated by an integrating circuit 13, and is held in a peak hold circuit 30. On the other hand, output from contacts of resistors 11, 12 accompanied by setting OFF the contactor 3 is input through a polarity inverting circuit 55 to an integrating circuit 14. A peak hold circuit 31 holds the peak value of output voltage in the integrating circuit 14. Output in the peak hold circuit 30, 31 is taken into a data processing unit 28, discharging condition in each ignition pulg is detected.
JP10176978A 1978-08-23 1978-08-23 Ignition system diagnosing system Pending JPS5529046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10176978A JPS5529046A (en) 1978-08-23 1978-08-23 Ignition system diagnosing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10176978A JPS5529046A (en) 1978-08-23 1978-08-23 Ignition system diagnosing system

Publications (1)

Publication Number Publication Date
JPS5529046A true JPS5529046A (en) 1980-03-01

Family

ID=14309418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10176978A Pending JPS5529046A (en) 1978-08-23 1978-08-23 Ignition system diagnosing system

Country Status (1)

Country Link
JP (1) JPS5529046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143042A (en) * 1990-08-06 1992-09-01 Siemens Aktiengesellschaft Ignition device for internal combustion engines
ITMI20090817A1 (en) * 2009-05-12 2010-11-13 Eldor Corp Spa DEVICE FOR THE DIAGNOSIS OF THE IGNITION DEVICE IN AN INTERNAL COMBUSTION ENGINE.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143042A (en) * 1990-08-06 1992-09-01 Siemens Aktiengesellschaft Ignition device for internal combustion engines
ITMI20090817A1 (en) * 2009-05-12 2010-11-13 Eldor Corp Spa DEVICE FOR THE DIAGNOSIS OF THE IGNITION DEVICE IN AN INTERNAL COMBUSTION ENGINE.
WO2010130448A1 (en) * 2009-05-12 2010-11-18 Eldor Corporation S.P.A. Device for diagnosing the ignition device in an internal combustion engine

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