FR2331032A1 - Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance - Google Patents

Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance

Info

Publication number
FR2331032A1
FR2331032A1 FR7533763A FR7533763A FR2331032A1 FR 2331032 A1 FR2331032 A1 FR 2331032A1 FR 7533763 A FR7533763 A FR 7533763A FR 7533763 A FR7533763 A FR 7533763A FR 2331032 A1 FR2331032 A1 FR 2331032A1
Authority
FR
France
Prior art keywords
light guide
disturbance
emitting diode
photocell
photoelectric
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
FR7533763A
Other languages
French (fr)
Other versions
FR2331032B1 (en
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.)
Automobiles Peugeot SA
Original Assignee
Automobiles Peugeot 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 Automobiles Peugeot SA filed Critical Automobiles Peugeot SA
Priority to FR7533763A priority Critical patent/FR2331032A1/en
Publication of FR2331032A1 publication Critical patent/FR2331032A1/en
Application granted granted Critical
Publication of FR2331032B1 publication Critical patent/FR2331032B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

A signal indicative of the leading edge of an H.T. current pulse in the H.T. lead (4) between a distributor (3) and spark plug (5) of an IC engine is derived from an infra red light emitting diode (6). The infra red light is passed via a light guide (7) to an infra red light sensitive transistor (8) from which the requisite output signal pulse is derived. Use of the light guide (7) avoids generation of high frequency signal components which would otherwise cause disturbance. IR light emitting diode (6) is planed in series with a visible spectrum light emitting diode (10) observation of which in use, indicates correct operation of the device. Diodes (6) and (10) are shunted by diode (9) for protection against reverse current. In an alternative the device may be connected in the common H.T. lead (2) between the coil (1) and distributor (3) when timing information regarding all of the cylinders is required.
FR7533763A 1975-11-05 1975-11-05 Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance Granted FR2331032A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7533763A FR2331032A1 (en) 1975-11-05 1975-11-05 Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7533763A FR2331032A1 (en) 1975-11-05 1975-11-05 Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance

Publications (2)

Publication Number Publication Date
FR2331032A1 true FR2331032A1 (en) 1977-06-03
FR2331032B1 FR2331032B1 (en) 1981-03-27

Family

ID=9162043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533763A Granted FR2331032A1 (en) 1975-11-05 1975-11-05 Photoelectric IC engine ignition timing indicator - uses IR LED sending pulse via light guide to photocell to avoid HF disturbance

Country Status (1)

Country Link
FR (1) FR2331032A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265345A1 (en) * 1986-10-24 1988-04-27 Souriau Et Cie Device for the measurement and control of the ignition angle in an internal-combustion engine
EP0502549A2 (en) * 1991-03-07 1992-09-09 BERU Ruprecht GmbH & Co. KG Spark survey in spark ignition engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265345A1 (en) * 1986-10-24 1988-04-27 Souriau Et Cie Device for the measurement and control of the ignition angle in an internal-combustion engine
FR2605680A1 (en) * 1986-10-24 1988-04-29 Souriau & Cie DEVICE FOR MEASURING AND ADJUSTING THE IGNITION ADVENT OF AN INTERNAL COMBUSTION ENGINE
EP0502549A2 (en) * 1991-03-07 1992-09-09 BERU Ruprecht GmbH & Co. KG Spark survey in spark ignition engine
EP0502549A3 (en) * 1991-03-07 1993-12-01 Beru Werk Ruprecht Gmbh Co A Spark survey in spark ignition engine

Also Published As

Publication number Publication date
FR2331032B1 (en) 1981-03-27

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Legal Events

Date Code Title Description
ST Notification of lapse