FR2238374A5 - Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine - Google Patents

Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine

Info

Publication number
FR2238374A5
FR2238374A5 FR7325999A FR7325999A FR2238374A5 FR 2238374 A5 FR2238374 A5 FR 2238374A5 FR 7325999 A FR7325999 A FR 7325999A FR 7325999 A FR7325999 A FR 7325999A FR 2238374 A5 FR2238374 A5 FR 2238374A5
Authority
FR
France
Prior art keywords
engine
groups
disc
ignition timing
speed
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.)
Expired
Application number
FR7325999A
Other languages
French (fr)
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.)
Safran Electrical and Power SAS
Original Assignee
Labinal 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 Labinal SA filed Critical Labinal SA
Priority to FR7325999A priority Critical patent/FR2238374A5/en
Application granted granted Critical
Publication of FR2238374A5 publication Critical patent/FR2238374A5/en
Expired 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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/62—Performing operations exclusively by counting total number of pulses ; Multiplication, division or derived operations using combined denominational and incremental processing by counters, i.e. without column shift
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Mechanical Engineering (AREA)
  • Computational Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Signal Processing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

An opaque disc (1) is driven by the engine at a speed corresponding to engine speed. Holes (2, 3) round its circumference are separated into two groups (10, 11). The edge of the disc passes between a light (4) and a photoelectric cell so that pulse is generated every time a hole passes under the light. The interval between the last hole of one group and the first hole of the second group at maximum speed is greater than the interval between successive holes of the same group at minimum speed. The generated electrical impulses are fed to a digital electronic circuit which controls ignition timing to two groups of cylinders.
FR7325999A 1973-07-16 1973-07-16 Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine Expired FR2238374A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325999A FR2238374A5 (en) 1973-07-16 1973-07-16 Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325999A FR2238374A5 (en) 1973-07-16 1973-07-16 Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine

Publications (1)

Publication Number Publication Date
FR2238374A5 true FR2238374A5 (en) 1975-02-14

Family

ID=9122637

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325999A Expired FR2238374A5 (en) 1973-07-16 1973-07-16 Automatic ignition timing mechanism for I.C. engine - has disc with two groups of timing holes driven by engine

Country Status (1)

Country Link
FR (1) FR2238374A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002927A1 (en) * 1981-02-23 1982-09-02 Inc Motorola Engine control system with cylinder identification apparatus
US4782798A (en) * 1987-05-11 1988-11-08 Jones Horace L Cybernetic engine
USRE34257E (en) * 1984-03-14 1993-05-18 Nissan Motor Co., Ltd. Crank angle detecting system for engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002927A1 (en) * 1981-02-23 1982-09-02 Inc Motorola Engine control system with cylinder identification apparatus
USRE34257E (en) * 1984-03-14 1993-05-18 Nissan Motor Co., Ltd. Crank angle detecting system for engines
US4782798A (en) * 1987-05-11 1988-11-08 Jones Horace L Cybernetic engine

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Legal Events

Date Code Title Description
ST Notification of lapse