FR2393470A1 - Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train - Google Patents

Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train

Info

Publication number
FR2393470A1
FR2393470A1 FR7716875A FR7716875A FR2393470A1 FR 2393470 A1 FR2393470 A1 FR 2393470A1 FR 7716875 A FR7716875 A FR 7716875A FR 7716875 A FR7716875 A FR 7716875A FR 2393470 A1 FR2393470 A1 FR 2393470A1
Authority
FR
France
Prior art keywords
control circuit
electronic control
time intervals
pulse train
successive pulses
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
FR7716875A
Other languages
French (fr)
Other versions
FR2393470B1 (en
Inventor
Gerard Charles Camille Brihier
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.)
Facom SA
Original Assignee
Facom SA
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 Facom SA filed Critical Facom SA
Priority to FR7716875A priority Critical patent/FR2393470A1/en
Priority to US05/911,238 priority patent/US4178541A/en
Publication of FR2393470A1 publication Critical patent/FR2393470A1/en
Application granted granted Critical
Publication of FR2393470B1 publication Critical patent/FR2393470B1/fr
Granted 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
    • F02P17/10—Measuring dwell or antidwell time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/19—Monitoring patterns of pulse trains

Abstract

The circuit has a timing pulse generator, a counter, a control pulse circuit, and a memory. A first control pulse is applied to the control input of the memory to actuate memorising of the counters contents. The second control pulse is applied to the zero reset input of the counter. The circuit has an analogue digital convertor connected to the memorys outputs. A display unit displays the analogue valve furnished by the convertor. The reference space is determined from the time necessary for complete filling of the counter by the generator.
FR7716875A 1977-06-02 1977-06-02 Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train Granted FR2393470A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7716875A FR2393470A1 (en) 1977-06-02 1977-06-02 Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train
US05/911,238 US4178541A (en) 1977-06-02 1978-05-31 Apparatus for testing the operation of a device controlling the ignition of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7716875A FR2393470A1 (en) 1977-06-02 1977-06-02 Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train

Publications (2)

Publication Number Publication Date
FR2393470A1 true FR2393470A1 (en) 1978-12-29
FR2393470B1 FR2393470B1 (en) 1983-03-18

Family

ID=9191586

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716875A Granted FR2393470A1 (en) 1977-06-02 1977-06-02 Automobile distributor electronic control circuit - measures time intervals between successive pulses of pulse train

Country Status (1)

Country Link
FR (1) FR2393470A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020070A1 (en) * 1979-05-25 1980-12-10 LUCAS INDUSTRIES public limited company Circuit for distinguishing specific pulse patterns in a pulse train
EP0789457A2 (en) * 1996-02-12 1997-08-13 Snap-on Technologies, Inc. Method and apparatus for detection of missing pulses from a repetitive pulse train

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0020070A1 (en) * 1979-05-25 1980-12-10 LUCAS INDUSTRIES public limited company Circuit for distinguishing specific pulse patterns in a pulse train
EP0789457A2 (en) * 1996-02-12 1997-08-13 Snap-on Technologies, Inc. Method and apparatus for detection of missing pulses from a repetitive pulse train
EP0789457A3 (en) * 1996-02-12 1998-04-22 Snap-on Technologies, Inc. Method and apparatus for detection of missing pulses from a repetitive pulse train
US6453250B1 (en) 1996-02-12 2002-09-17 Snap On Technologies, Inc. Method and apparatus for detection of missing pulses from a pulse train

Also Published As

Publication number Publication date
FR2393470B1 (en) 1983-03-18

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Legal Events

Date Code Title Description
ST Notification of lapse