FR2318325A1 - IC engine electronic ignition advance system - is controlled by two pulse trains and reference pulse train which is independent of engine speed - Google Patents

IC engine electronic ignition advance system - is controlled by two pulse trains and reference pulse train which is independent of engine speed

Info

Publication number
FR2318325A1
FR2318325A1 FR7622026A FR7622026A FR2318325A1 FR 2318325 A1 FR2318325 A1 FR 2318325A1 FR 7622026 A FR7622026 A FR 7622026A FR 7622026 A FR7622026 A FR 7622026A FR 2318325 A1 FR2318325 A1 FR 2318325A1
Authority
FR
France
Prior art keywords
pulse train
independent
engine speed
pulse
ignition advance
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
FR7622026A
Other languages
French (fr)
Other versions
FR2318325B3 (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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of FR2318325A1 publication Critical patent/FR2318325A1/en
Application granted granted Critical
Publication of FR2318325B3 publication Critical patent/FR2318325B3/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
    • 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
    • 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
    • F02P5/02—Advancing or retarding ignition; Control therefor non-automatically; dependent on position of personal controls of engine, e.g. throttle position
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electrical Control Of Ignition Timing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The first pulse train frequency is independent from engine speed, while the second and reference pulse train frequencies are proportional to the engine speed. The pulses of the first pulse train are counted during the interval between two reference pulses. The pulse number so counted is coded in accordance with a specified ignition advance function. Starting with a reference pulse, the pulses of the second pulse train are counted between two reference pulses, and the number so obtained is compared with the coded number of the first pulse train. A control pulse is delivered when the two numbers are equal.
FR7622026A 1975-07-17 1976-07-13 IC engine electronic ignition advance system - is controlled by two pulse trains and reference pulse train which is independent of engine speed Granted FR2318325A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25487/75A IT1039279B (en) 1975-07-17 1975-07-17 ELECTRONIC ADVANCE SYSTEM FOR BIGLIANI UMBERTO INTERNAL COMBUSTION ENGINES

Publications (2)

Publication Number Publication Date
FR2318325A1 true FR2318325A1 (en) 1977-02-11
FR2318325B3 FR2318325B3 (en) 1979-04-13

Family

ID=11216838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622026A Granted FR2318325A1 (en) 1975-07-17 1976-07-13 IC engine electronic ignition advance system - is controlled by two pulse trains and reference pulse train which is independent of engine speed

Country Status (5)

Country Link
DE (1) DE2631323A1 (en)
FR (1) FR2318325A1 (en)
IT (1) IT1039279B (en)
NL (1) NL7607996A (en)
SE (1) SE7608142L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420664A1 (en) * 1978-03-21 1979-10-19 Bosch Gmbh Robert IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1067157B (en) * 1976-07-27 1985-03-12 Magneti Marelli Spa IGNITION ADVANCE EQUIPMENT OF INTERNAL COMBUSTION ENGINES
JPS5399142A (en) * 1977-02-08 1978-08-30 Toshiba Corp Ignition control system
DE2748663A1 (en) * 1977-10-29 1979-05-10 Bosch Gmbh Robert IGNITION SYSTEM FOR COMBUSTION MACHINERY
DE2824885A1 (en) * 1978-06-07 1979-12-20 Bosch Gmbh Robert IC engine cyclic processes control unit - includes comparator which counts to pre-settable limit before initiating process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420664A1 (en) * 1978-03-21 1979-10-19 Bosch Gmbh Robert IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
SE7608142L (en) 1977-01-18
IT1039279B (en) 1979-12-10
FR2318325B3 (en) 1979-04-13
NL7607996A (en) 1977-01-19
DE2631323A1 (en) 1977-02-03

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Legal Events

Date Code Title Description
ST Notification of lapse